// dear imgui, v1.64 WIP // (widgets code) #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS) #define _CRT_SECURE_NO_WARNINGS #endif #include "imgui.h" #ifndef IMGUI_DEFINE_MATH_OPERATORS #define IMGUI_DEFINE_MATH_OPERATORS #endif #include "imgui_internal.h" #include // toupper, isprint // Visual Studio warnings #ifdef _MSC_VER #pragma warning (disable: 4127) // condition expression is constant #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen #endif // Clang/GCC warnings with -Weverything #ifdef __clang__ #pragma clang diagnostic ignored "-Wformat-nonliteral" // warning : format string is not a string literal // passing non-literal to vsnformat(). yes, user passing incorrect format strings can crash the code. #pragma clang diagnostic ignored "-Wsign-conversion" // warning : implicit conversion changes signedness // #elif defined(__GNUC__) #pragma GCC diagnostic ignored "-Wformat-nonliteral" // warning: format not a string literal, format string not checked #if __GNUC__ >= 8 #pragma GCC diagnostic ignored "-Wclass-memaccess" // warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead #endif #endif //------------------------------------------------------------------------- // Forward Declarations //------------------------------------------------------------------------- //------------------------------------------------------------------------- // SHARED UTILITIES //------------------------------------------------------------------------- //------------------------------------------------------------------------- // WIDGETS: Text // - TextUnformatted() // - Text() // - TextV() // - TextColored() // - TextColoredV() // - TextDisabled() // - TextDisabledV() // - TextWrapped() // - TextWrappedV() // - LabelText() // - LabelTextV() // - BulletText() // - BulletTextV() //------------------------------------------------------------------------- void ImGui::TextUnformatted(const char* text, const char* text_end) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return; ImGuiContext& g = *GImGui; IM_ASSERT(text != NULL); const char* text_begin = text; if (text_end == NULL) text_end = text + strlen(text); // FIXME-OPT const ImVec2 text_pos(window->DC.CursorPos.x, window->DC.CursorPos.y + window->DC.CurrentLineTextBaseOffset); const float wrap_pos_x = window->DC.TextWrapPos; const bool wrap_enabled = wrap_pos_x >= 0.0f; if (text_end - text > 2000 && !wrap_enabled) { // Long text! // Perform manual coarse clipping to optimize for long multi-line text // From this point we will only compute the width of lines that are visible. Optimization only available when word-wrapping is disabled. // We also don't vertically center the text within the line full height, which is unlikely to matter because we are likely the biggest and only item on the line. const char* line = text; const float line_height = GetTextLineHeight(); const ImRect clip_rect = window->ClipRect; ImVec2 text_size(0,0); if (text_pos.y <= clip_rect.Max.y) { ImVec2 pos = text_pos; // Lines to skip (can't skip when logging text) if (!g.LogEnabled) { int lines_skippable = (int)((clip_rect.Min.y - text_pos.y) / line_height); if (lines_skippable > 0) { int lines_skipped = 0; while (line < text_end && lines_skipped < lines_skippable) { const char* line_end = strchr(line, '\n'); if (!line_end) line_end = text_end; line = line_end + 1; lines_skipped++; } pos.y += lines_skipped * line_height; } } // Lines to render if (line < text_end) { ImRect line_rect(pos, pos + ImVec2(FLT_MAX, line_height)); while (line < text_end) { const char* line_end = strchr(line, '\n'); if (IsClippedEx(line_rect, 0, false)) break; const ImVec2 line_size = CalcTextSize(line, line_end, false); text_size.x = ImMax(text_size.x, line_size.x); RenderText(pos, line, line_end, false); if (!line_end) line_end = text_end; line = line_end + 1; line_rect.Min.y += line_height; line_rect.Max.y += line_height; pos.y += line_height; } // Count remaining lines int lines_skipped = 0; while (line < text_end) { const char* line_end = strchr(line, '\n'); if (!line_end) line_end = text_end; line = line_end + 1; lines_skipped++; } pos.y += lines_skipped * line_height; } text_size.y += (pos - text_pos).y; } ImRect bb(text_pos, text_pos + text_size); ItemSize(bb); ItemAdd(bb, 0); } else { const float wrap_width = wrap_enabled ? CalcWrapWidthForPos(window->DC.CursorPos, wrap_pos_x) : 0.0f; const ImVec2 text_size = CalcTextSize(text_begin, text_end, false, wrap_width); // Account of baseline offset ImRect bb(text_pos, text_pos + text_size); ItemSize(text_size); if (!ItemAdd(bb, 0)) return; // Render (we don't hide text after ## in this end-user function) RenderTextWrapped(bb.Min, text_begin, text_end, wrap_width); } } void ImGui::Text(const char* fmt, ...) { va_list args; va_start(args, fmt); TextV(fmt, args); va_end(args); } void ImGui::TextV(const char* fmt, va_list args) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return; ImGuiContext& g = *GImGui; const char* text_end = g.TempBuffer + ImFormatStringV(g.TempBuffer, IM_ARRAYSIZE(g.TempBuffer), fmt, args); TextUnformatted(g.TempBuffer, text_end); } void ImGui::TextColored(const ImVec4& col, const char* fmt, ...) { va_list args; va_start(args, fmt); TextColoredV(col, fmt, args); va_end(args); } void ImGui::TextColoredV(const ImVec4& col, const char* fmt, va_list args) { PushStyleColor(ImGuiCol_Text, col); TextV(fmt, args); PopStyleColor(); } void ImGui::TextDisabled(const char* fmt, ...) { va_list args; va_start(args, fmt); TextDisabledV(fmt, args); va_end(args); } void ImGui::TextDisabledV(const char* fmt, va_list args) { PushStyleColor(ImGuiCol_Text, GImGui->Style.Colors[ImGuiCol_TextDisabled]); TextV(fmt, args); PopStyleColor(); } void ImGui::TextWrapped(const char* fmt, ...) { va_list args; va_start(args, fmt); TextWrappedV(fmt, args); va_end(args); } void ImGui::TextWrappedV(const char* fmt, va_list args) { bool need_wrap = (GImGui->CurrentWindow->DC.TextWrapPos < 0.0f); // Keep existing wrap position is one ia already set if (need_wrap) PushTextWrapPos(0.0f); TextV(fmt, args); if (need_wrap) PopTextWrapPos(); } void ImGui::LabelText(const char* label, const char* fmt, ...) { va_list args; va_start(args, fmt); LabelTextV(label, fmt, args); va_end(args); } // Add a label+text combo aligned to other label+value widgets void ImGui::LabelTextV(const char* label, const char* fmt, va_list args) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; const float w = CalcItemWidth(); const ImVec2 label_size = CalcTextSize(label, NULL, true); const ImRect value_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y*2)); const ImRect total_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w + (label_size.x > 0.0f ? style.ItemInnerSpacing.x : 0.0f), style.FramePadding.y*2) + label_size); ItemSize(total_bb, style.FramePadding.y); if (!ItemAdd(total_bb, 0)) return; // Render const char* value_text_begin = &g.TempBuffer[0]; const char* value_text_end = value_text_begin + ImFormatStringV(g.TempBuffer, IM_ARRAYSIZE(g.TempBuffer), fmt, args); RenderTextClipped(value_bb.Min, value_bb.Max, value_text_begin, value_text_end, NULL, ImVec2(0.0f,0.5f)); if (label_size.x > 0.0f) RenderText(ImVec2(value_bb.Max.x + style.ItemInnerSpacing.x, value_bb.Min.y + style.FramePadding.y), label); } void ImGui::BulletText(const char* fmt, ...) { va_list args; va_start(args, fmt); BulletTextV(fmt, args); va_end(args); } // Text with a little bullet aligned to the typical tree node. void ImGui::BulletTextV(const char* fmt, va_list args) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; const char* text_begin = g.TempBuffer; const char* text_end = text_begin + ImFormatStringV(g.TempBuffer, IM_ARRAYSIZE(g.TempBuffer), fmt, args); const ImVec2 label_size = CalcTextSize(text_begin, text_end, false); const float text_base_offset_y = ImMax(0.0f, window->DC.CurrentLineTextBaseOffset); // Latch before ItemSize changes it const float line_height = ImMax(ImMin(window->DC.CurrentLineSize.y, g.FontSize + g.Style.FramePadding.y*2), g.FontSize); const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(g.FontSize + (label_size.x > 0.0f ? (label_size.x + style.FramePadding.x*2) : 0.0f), ImMax(line_height, label_size.y))); // Empty text doesn't add padding ItemSize(bb); if (!ItemAdd(bb, 0)) return; // Render RenderBullet(bb.Min + ImVec2(style.FramePadding.x + g.FontSize*0.5f, line_height*0.5f)); RenderText(bb.Min+ImVec2(g.FontSize + style.FramePadding.x*2, text_base_offset_y), text_begin, text_end, false); } //------------------------------------------------------------------------- // WIDGETS: Main // - ButtonBehavior() [Internal] // - Button() // - SmallButton() // - InvisibleButton() // - ArrowButton() // - CloseButton() [Internal] // - CollapseButton() [Internal] // - Image() // - ImageButton() // - Checkbox() // - CheckboxFlags() // - RadioButton() // - ProgressBar() // - Bullet() //------------------------------------------------------------------------- bool ImGui::ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool* out_held, ImGuiButtonFlags flags) { ImGuiContext& g = *GImGui; ImGuiWindow* window = GetCurrentWindow(); if (flags & ImGuiButtonFlags_Disabled) { if (out_hovered) *out_hovered = false; if (out_held) *out_held = false; if (g.ActiveId == id) ClearActiveID(); return false; } // Default behavior requires click+release on same spot if ((flags & (ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_PressedOnRelease | ImGuiButtonFlags_PressedOnDoubleClick)) == 0) flags |= ImGuiButtonFlags_PressedOnClickRelease; ImGuiWindow* backup_hovered_window = g.HoveredWindow; if ((flags & ImGuiButtonFlags_FlattenChildren) && g.HoveredRootWindow == window) g.HoveredWindow = window; bool pressed = false; bool hovered = ItemHoverable(bb, id); // Drag source doesn't report as hovered if (hovered && g.DragDropActive && g.DragDropPayload.SourceId == id && !(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoDisableHover)) hovered = false; // Special mode for Drag and Drop where holding button pressed for a long time while dragging another item triggers the button if (g.DragDropActive && (flags & ImGuiButtonFlags_PressedOnDragDropHold) && !(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoHoldToOpenOthers)) if (IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByActiveItem)) { hovered = true; SetHoveredID(id); if (CalcTypematicPressedRepeatAmount(g.HoveredIdTimer + 0.0001f, g.HoveredIdTimer + 0.0001f - g.IO.DeltaTime, 0.01f, 0.70f)) // FIXME: Our formula for CalcTypematicPressedRepeatAmount() is fishy { pressed = true; FocusWindow(window); } } if ((flags & ImGuiButtonFlags_FlattenChildren) && g.HoveredRootWindow == window) g.HoveredWindow = backup_hovered_window; // AllowOverlap mode (rarely used) requires previous frame HoveredId to be null or to match. This allows using patterns where a later submitted widget overlaps a previous one. if (hovered && (flags & ImGuiButtonFlags_AllowItemOverlap) && (g.HoveredIdPreviousFrame != id && g.HoveredIdPreviousFrame != 0)) hovered = false; // Mouse if (hovered) { if (!(flags & ImGuiButtonFlags_NoKeyModifiers) || (!g.IO.KeyCtrl && !g.IO.KeyShift && !g.IO.KeyAlt)) { // | CLICKING | HOLDING with ImGuiButtonFlags_Repeat // PressedOnClickRelease | * | .. (NOT on release) <-- MOST COMMON! (*) only if both click/release were over bounds // PressedOnClick | | .. // PressedOnRelease | | .. (NOT on release) // PressedOnDoubleClick | | .. // FIXME-NAV: We don't honor those different behaviors. if ((flags & ImGuiButtonFlags_PressedOnClickRelease) && g.IO.MouseClicked[0]) { SetActiveID(id, window); if (!(flags & ImGuiButtonFlags_NoNavFocus)) SetFocusID(id, window); FocusWindow(window); } if (((flags & ImGuiButtonFlags_PressedOnClick) && g.IO.MouseClicked[0]) || ((flags & ImGuiButtonFlags_PressedOnDoubleClick) && g.IO.MouseDoubleClicked[0])) { pressed = true; if (flags & ImGuiButtonFlags_NoHoldingActiveID) ClearActiveID(); else SetActiveID(id, window); // Hold on ID FocusWindow(window); } if ((flags & ImGuiButtonFlags_PressedOnRelease) && g.IO.MouseReleased[0]) { if (!((flags & ImGuiButtonFlags_Repeat) && g.IO.MouseDownDurationPrev[0] >= g.IO.KeyRepeatDelay)) // Repeat mode trumps pressed = true; ClearActiveID(); } // 'Repeat' mode acts when held regardless of _PressedOn flags (see table above). // Relies on repeat logic of IsMouseClicked() but we may as well do it ourselves if we end up exposing finer RepeatDelay/RepeatRate settings. if ((flags & ImGuiButtonFlags_Repeat) && g.ActiveId == id && g.IO.MouseDownDuration[0] > 0.0f && IsMouseClicked(0, true)) pressed = true; } if (pressed) g.NavDisableHighlight = true; } // Gamepad/Keyboard navigation // We report navigated item as hovered but we don't set g.HoveredId to not interfere with mouse. if (g.NavId == id && !g.NavDisableHighlight && g.NavDisableMouseHover && (g.ActiveId == 0 || g.ActiveId == id || g.ActiveId == window->MoveId)) hovered = true; if (g.NavActivateDownId == id) { bool nav_activated_by_code = (g.NavActivateId == id); bool nav_activated_by_inputs = IsNavInputPressed(ImGuiNavInput_Activate, (flags & ImGuiButtonFlags_Repeat) ? ImGuiInputReadMode_Repeat : ImGuiInputReadMode_Pressed); if (nav_activated_by_code || nav_activated_by_inputs) pressed = true; if (nav_activated_by_code || nav_activated_by_inputs || g.ActiveId == id) { // Set active id so it can be queried by user via IsItemActive(), equivalent of holding the mouse button. g.NavActivateId = id; // This is so SetActiveId assign a Nav source SetActiveID(id, window); if (!(flags & ImGuiButtonFlags_NoNavFocus)) SetFocusID(id, window); g.ActiveIdAllowNavDirFlags = (1 << ImGuiDir_Left) | (1 << ImGuiDir_Right) | (1 << ImGuiDir_Up) | (1 << ImGuiDir_Down); } } bool held = false; if (g.ActiveId == id) { if (g.ActiveIdSource == ImGuiInputSource_Mouse) { if (g.ActiveIdIsJustActivated) g.ActiveIdClickOffset = g.IO.MousePos - bb.Min; if (g.IO.MouseDown[0]) { held = true; } else { if (hovered && (flags & ImGuiButtonFlags_PressedOnClickRelease)) if (!((flags & ImGuiButtonFlags_Repeat) && g.IO.MouseDownDurationPrev[0] >= g.IO.KeyRepeatDelay)) // Repeat mode trumps if (!g.DragDropActive) pressed = true; ClearActiveID(); } if (!(flags & ImGuiButtonFlags_NoNavFocus)) g.NavDisableHighlight = true; } else if (g.ActiveIdSource == ImGuiInputSource_Nav) { if (g.NavActivateDownId != id) ClearActiveID(); } } if (out_hovered) *out_hovered = hovered; if (out_held) *out_held = held; return pressed; } bool ImGui::ButtonEx(const char* label, const ImVec2& size_arg, ImGuiButtonFlags flags) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; const ImGuiID id = window->GetID(label); const ImVec2 label_size = CalcTextSize(label, NULL, true); ImVec2 pos = window->DC.CursorPos; if ((flags & ImGuiButtonFlags_AlignTextBaseLine) && style.FramePadding.y < window->DC.CurrentLineTextBaseOffset) // Try to vertically align buttons that are smaller/have no padding so that text baseline matches (bit hacky, since it shouldn't be a flag) pos.y += window->DC.CurrentLineTextBaseOffset - style.FramePadding.y; ImVec2 size = CalcItemSize(size_arg, label_size.x + style.FramePadding.x * 2.0f, label_size.y + style.FramePadding.y * 2.0f); const ImRect bb(pos, pos + size); ItemSize(bb, style.FramePadding.y); if (!ItemAdd(bb, id)) return false; if (window->DC.ItemFlags & ImGuiItemFlags_ButtonRepeat) flags |= ImGuiButtonFlags_Repeat; bool hovered, held; bool pressed = ButtonBehavior(bb, id, &hovered, &held, flags); if (pressed) MarkItemEdited(id); // Render const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button); RenderNavHighlight(bb, id); RenderFrame(bb.Min, bb.Max, col, true, style.FrameRounding); RenderTextClipped(bb.Min + style.FramePadding, bb.Max - style.FramePadding, label, NULL, &label_size, style.ButtonTextAlign, &bb); // Automatically close popups //if (pressed && !(flags & ImGuiButtonFlags_DontClosePopups) && (window->Flags & ImGuiWindowFlags_Popup)) // CloseCurrentPopup(); return pressed; } bool ImGui::Button(const char* label, const ImVec2& size_arg) { return ButtonEx(label, size_arg, 0); } // Small buttons fits within text without additional vertical spacing. bool ImGui::SmallButton(const char* label) { ImGuiContext& g = *GImGui; float backup_padding_y = g.Style.FramePadding.y; g.Style.FramePadding.y = 0.0f; bool pressed = ButtonEx(label, ImVec2(0, 0), ImGuiButtonFlags_AlignTextBaseLine); g.Style.FramePadding.y = backup_padding_y; return pressed; } // Tip: use ImGui::PushID()/PopID() to push indices or pointers in the ID stack. // Then you can keep 'str_id' empty or the same for all your buttons (instead of creating a string based on a non-string id) bool ImGui::InvisibleButton(const char* str_id, const ImVec2& size_arg) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; // Cannot use zero-size for InvisibleButton(). Unlike Button() there is not way to fallback using the label size. IM_ASSERT(size_arg.x != 0.0f && size_arg.y != 0.0f); const ImGuiID id = window->GetID(str_id); ImVec2 size = CalcItemSize(size_arg, 0.0f, 0.0f); const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size); ItemSize(bb); if (!ItemAdd(bb, id)) return false; bool hovered, held; bool pressed = ButtonBehavior(bb, id, &hovered, &held); return pressed; } bool ImGui::ArrowButtonEx(const char* str_id, ImGuiDir dir, ImVec2 size, ImGuiButtonFlags flags) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; const ImGuiID id = window->GetID(str_id); const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size); const float default_size = GetFrameHeight(); ItemSize(bb, (size.y >= default_size) ? g.Style.FramePadding.y : 0.0f); if (!ItemAdd(bb, id)) return false; if (window->DC.ItemFlags & ImGuiItemFlags_ButtonRepeat) flags |= ImGuiButtonFlags_Repeat; bool hovered, held; bool pressed = ButtonBehavior(bb, id, &hovered, &held, flags); // Render const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button); RenderNavHighlight(bb, id); RenderFrame(bb.Min, bb.Max, col, true, g.Style.FrameRounding); RenderArrow(bb.Min + ImVec2(ImMax(0.0f, size.x - g.FontSize - g.Style.FramePadding.x), ImMax(0.0f, size.y - g.FontSize - g.Style.FramePadding.y)), dir); return pressed; } bool ImGui::ArrowButton(const char* str_id, ImGuiDir dir) { float sz = GetFrameHeight(); return ArrowButtonEx(str_id, dir, ImVec2(sz, sz), 0); } // Button to close a window bool ImGui::CloseButton(ImGuiID id, const ImVec2& pos, float radius) { ImGuiContext& g = *GImGui; ImGuiWindow* window = g.CurrentWindow; // We intentionally allow interaction when clipped so that a mechanical Alt,Right,Validate sequence close a window. // (this isn't the regular behavior of buttons, but it doesn't affect the user much because navigation tends to keep items visible). const ImRect bb(pos - ImVec2(radius,radius), pos + ImVec2(radius,radius)); bool is_clipped = !ItemAdd(bb, id); bool hovered, held; bool pressed = ButtonBehavior(bb, id, &hovered, &held); if (is_clipped) return pressed; // Render ImVec2 center = bb.GetCenter(); if (hovered) window->DrawList->AddCircleFilled(center, ImMax(2.0f, radius), GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : ImGuiCol_ButtonHovered), 9); float cross_extent = (radius * 0.7071f) - 1.0f; ImU32 cross_col = GetColorU32(ImGuiCol_Text); center -= ImVec2(0.5f, 0.5f); window->DrawList->AddLine(center + ImVec2(+cross_extent,+cross_extent), center + ImVec2(-cross_extent,-cross_extent), cross_col, 1.0f); window->DrawList->AddLine(center + ImVec2(+cross_extent,-cross_extent), center + ImVec2(-cross_extent,+cross_extent), cross_col, 1.0f); return pressed; } bool ImGui::CollapseButton(ImGuiID id, const ImVec2& pos) { ImGuiContext& g = *GImGui; ImGuiWindow* window = g.CurrentWindow; ImRect bb(pos, pos + ImVec2(g.FontSize, g.FontSize) + g.Style.FramePadding * 2.0f); ItemAdd(bb, id); bool hovered, held; bool pressed = ButtonBehavior(bb, id, &hovered, &held, ImGuiButtonFlags_None); ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button); if (hovered || held) window->DrawList->AddCircleFilled(bb.GetCenter() + ImVec2(0.0f, -0.5f), g.FontSize * 0.5f + 1.0f, col, 9); RenderArrow(bb.Min + g.Style.FramePadding, window->Collapsed ? ImGuiDir_Right : ImGuiDir_Down, 1.0f); // Switch to moving the window after mouse is moved beyond the initial drag threshold if (IsItemActive() && IsMouseDragging()) StartMouseMovingWindow(window); return pressed; } void ImGui::Image(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, const ImVec4& tint_col, const ImVec4& border_col) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return; ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size); if (border_col.w > 0.0f) bb.Max += ImVec2(2, 2); ItemSize(bb); if (!ItemAdd(bb, 0)) return; if (border_col.w > 0.0f) { window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(border_col), 0.0f); window->DrawList->AddImage(user_texture_id, bb.Min + ImVec2(1, 1), bb.Max - ImVec2(1, 1), uv0, uv1, GetColorU32(tint_col)); } else { window->DrawList->AddImage(user_texture_id, bb.Min, bb.Max, uv0, uv1, GetColorU32(tint_col)); } } // frame_padding < 0: uses FramePadding from style (default) // frame_padding = 0: no framing // frame_padding > 0: set framing size // The color used are the button colors. bool ImGui::ImageButton(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, int frame_padding, const ImVec4& bg_col, const ImVec4& tint_col) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; // Default to using texture ID as ID. User can still push string/integer prefixes. // We could hash the size/uv to create a unique ID but that would prevent the user from animating UV. PushID((void*)user_texture_id); const ImGuiID id = window->GetID("#image"); PopID(); const ImVec2 padding = (frame_padding >= 0) ? ImVec2((float)frame_padding, (float)frame_padding) : style.FramePadding; const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size + padding * 2); const ImRect image_bb(window->DC.CursorPos + padding, window->DC.CursorPos + padding + size); ItemSize(bb); if (!ItemAdd(bb, id)) return false; bool hovered, held; bool pressed = ButtonBehavior(bb, id, &hovered, &held); // Render const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button); RenderNavHighlight(bb, id); RenderFrame(bb.Min, bb.Max, col, true, ImClamp((float)ImMin(padding.x, padding.y), 0.0f, style.FrameRounding)); if (bg_col.w > 0.0f) window->DrawList->AddRectFilled(image_bb.Min, image_bb.Max, GetColorU32(bg_col)); window->DrawList->AddImage(user_texture_id, image_bb.Min, image_bb.Max, uv0, uv1, GetColorU32(tint_col)); return pressed; } bool ImGui::Checkbox(const char* label, bool* v) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; const ImGuiID id = window->GetID(label); const ImVec2 label_size = CalcTextSize(label, NULL, true); const ImRect check_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(label_size.y + style.FramePadding.y*2, label_size.y + style.FramePadding.y*2)); // We want a square shape to we use Y twice ItemSize(check_bb, style.FramePadding.y); ImRect total_bb = check_bb; if (label_size.x > 0) SameLine(0, style.ItemInnerSpacing.x); const ImRect text_bb(window->DC.CursorPos + ImVec2(0,style.FramePadding.y), window->DC.CursorPos + ImVec2(0,style.FramePadding.y) + label_size); if (label_size.x > 0) { ItemSize(ImVec2(text_bb.GetWidth(), check_bb.GetHeight()), style.FramePadding.y); total_bb = ImRect(ImMin(check_bb.Min, text_bb.Min), ImMax(check_bb.Max, text_bb.Max)); } if (!ItemAdd(total_bb, id)) return false; bool hovered, held; bool pressed = ButtonBehavior(total_bb, id, &hovered, &held); if (pressed) { *v = !(*v); MarkItemEdited(id); } RenderNavHighlight(total_bb, id); RenderFrame(check_bb.Min, check_bb.Max, GetColorU32((held && hovered) ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg), true, style.FrameRounding); if (*v) { const float check_sz = ImMin(check_bb.GetWidth(), check_bb.GetHeight()); const float pad = ImMax(1.0f, (float)(int)(check_sz / 6.0f)); RenderCheckMark(check_bb.Min + ImVec2(pad,pad), GetColorU32(ImGuiCol_CheckMark), check_bb.GetWidth() - pad*2.0f); } if (g.LogEnabled) LogRenderedText(&text_bb.Min, *v ? "[x]" : "[ ]"); if (label_size.x > 0.0f) RenderText(text_bb.Min, label); return pressed; } bool ImGui::CheckboxFlags(const char* label, unsigned int* flags, unsigned int flags_value) { bool v = ((*flags & flags_value) == flags_value); bool pressed = Checkbox(label, &v); if (pressed) { if (v) *flags |= flags_value; else *flags &= ~flags_value; } return pressed; } bool ImGui::RadioButton(const char* label, bool active) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; const ImGuiID id = window->GetID(label); const ImVec2 label_size = CalcTextSize(label, NULL, true); const ImRect check_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(label_size.y + style.FramePadding.y*2-1, label_size.y + style.FramePadding.y*2-1)); ItemSize(check_bb, style.FramePadding.y); ImRect total_bb = check_bb; if (label_size.x > 0) SameLine(0, style.ItemInnerSpacing.x); const ImRect text_bb(window->DC.CursorPos + ImVec2(0, style.FramePadding.y), window->DC.CursorPos + ImVec2(0, style.FramePadding.y) + label_size); if (label_size.x > 0) { ItemSize(ImVec2(text_bb.GetWidth(), check_bb.GetHeight()), style.FramePadding.y); total_bb.Add(text_bb); } if (!ItemAdd(total_bb, id)) return false; ImVec2 center = check_bb.GetCenter(); center.x = (float)(int)center.x + 0.5f; center.y = (float)(int)center.y + 0.5f; const float radius = check_bb.GetHeight() * 0.5f; bool hovered, held; bool pressed = ButtonBehavior(total_bb, id, &hovered, &held); if (pressed) MarkItemEdited(id); RenderNavHighlight(total_bb, id); window->DrawList->AddCircleFilled(center, radius, GetColorU32((held && hovered) ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg), 16); if (active) { const float check_sz = ImMin(check_bb.GetWidth(), check_bb.GetHeight()); const float pad = ImMax(1.0f, (float)(int)(check_sz / 6.0f)); window->DrawList->AddCircleFilled(center, radius-pad, GetColorU32(ImGuiCol_CheckMark), 16); } if (style.FrameBorderSize > 0.0f) { window->DrawList->AddCircle(center+ImVec2(1,1), radius, GetColorU32(ImGuiCol_BorderShadow), 16, style.FrameBorderSize); window->DrawList->AddCircle(center, radius, GetColorU32(ImGuiCol_Border), 16, style.FrameBorderSize); } if (g.LogEnabled) LogRenderedText(&text_bb.Min, active ? "(x)" : "( )"); if (label_size.x > 0.0f) RenderText(text_bb.Min, label); return pressed; } bool ImGui::RadioButton(const char* label, int* v, int v_button) { const bool pressed = RadioButton(label, *v == v_button); if (pressed) *v = v_button; return pressed; } // size_arg (for each axis) < 0.0f: align to end, 0.0f: auto, > 0.0f: specified size void ImGui::ProgressBar(float fraction, const ImVec2& size_arg, const char* overlay) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; ImVec2 pos = window->DC.CursorPos; ImRect bb(pos, pos + CalcItemSize(size_arg, CalcItemWidth(), g.FontSize + style.FramePadding.y*2.0f)); ItemSize(bb, style.FramePadding.y); if (!ItemAdd(bb, 0)) return; // Render fraction = ImSaturate(fraction); RenderFrame(bb.Min, bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding); bb.Expand(ImVec2(-style.FrameBorderSize, -style.FrameBorderSize)); const ImVec2 fill_br = ImVec2(ImLerp(bb.Min.x, bb.Max.x, fraction), bb.Max.y); RenderRectFilledRangeH(window->DrawList, bb, GetColorU32(ImGuiCol_PlotHistogram), 0.0f, fraction, style.FrameRounding); // Default displaying the fraction as percentage string, but user can override it char overlay_buf[32]; if (!overlay) { ImFormatString(overlay_buf, IM_ARRAYSIZE(overlay_buf), "%.0f%%", fraction*100+0.01f); overlay = overlay_buf; } ImVec2 overlay_size = CalcTextSize(overlay, NULL); if (overlay_size.x > 0.0f) RenderTextClipped(ImVec2(ImClamp(fill_br.x + style.ItemSpacing.x, bb.Min.x, bb.Max.x - overlay_size.x - style.ItemInnerSpacing.x), bb.Min.y), bb.Max, overlay, NULL, &overlay_size, ImVec2(0.0f,0.5f), &bb); } void ImGui::Bullet() { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; const float line_height = ImMax(ImMin(window->DC.CurrentLineSize.y, g.FontSize + g.Style.FramePadding.y*2), g.FontSize); const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(g.FontSize, line_height)); ItemSize(bb); if (!ItemAdd(bb, 0)) { SameLine(0, style.FramePadding.x*2); return; } // Render and stay on same line RenderBullet(bb.Min + ImVec2(style.FramePadding.x + g.FontSize*0.5f, line_height*0.5f)); SameLine(0, style.FramePadding.x*2); } //------------------------------------------------------------------------- // WIDGETS: Combo Box // - BeginCombo() // - EndCombo() // - Combo() //------------------------------------------------------------------------- static float CalcMaxPopupHeightFromItemCount(int items_count) { ImGuiContext& g = *GImGui; if (items_count <= 0) return FLT_MAX; return (g.FontSize + g.Style.ItemSpacing.y) * items_count - g.Style.ItemSpacing.y + (g.Style.WindowPadding.y * 2); } bool ImGui::BeginCombo(const char* label, const char* preview_value, ImGuiComboFlags flags) { // Always consume the SetNextWindowSizeConstraint() call in our early return paths ImGuiContext& g = *GImGui; ImGuiCond backup_next_window_size_constraint = g.NextWindowData.SizeConstraintCond; g.NextWindowData.SizeConstraintCond = 0; ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; IM_ASSERT((flags & (ImGuiComboFlags_NoArrowButton | ImGuiComboFlags_NoPreview)) != (ImGuiComboFlags_NoArrowButton | ImGuiComboFlags_NoPreview)); // Can't use both flags together const ImGuiStyle& style = g.Style; const ImGuiID id = window->GetID(label); const float arrow_size = (flags & ImGuiComboFlags_NoArrowButton) ? 0.0f : GetFrameHeight(); const ImVec2 label_size = CalcTextSize(label, NULL, true); const float w = (flags & ImGuiComboFlags_NoPreview) ? arrow_size : CalcItemWidth(); const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y*2.0f)); const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f)); ItemSize(total_bb, style.FramePadding.y); if (!ItemAdd(total_bb, id, &frame_bb)) return false; bool hovered, held; bool pressed = ButtonBehavior(frame_bb, id, &hovered, &held); bool popup_open = IsPopupOpen(id); const ImRect value_bb(frame_bb.Min, frame_bb.Max - ImVec2(arrow_size, 0.0f)); const ImU32 frame_col = GetColorU32(hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg); RenderNavHighlight(frame_bb, id); if (!(flags & ImGuiComboFlags_NoPreview)) window->DrawList->AddRectFilled(frame_bb.Min, ImVec2(frame_bb.Max.x - arrow_size, frame_bb.Max.y), frame_col, style.FrameRounding, ImDrawCornerFlags_Left); if (!(flags & ImGuiComboFlags_NoArrowButton)) { window->DrawList->AddRectFilled(ImVec2(frame_bb.Max.x - arrow_size, frame_bb.Min.y), frame_bb.Max, GetColorU32((popup_open || hovered) ? ImGuiCol_ButtonHovered : ImGuiCol_Button), style.FrameRounding, (w <= arrow_size) ? ImDrawCornerFlags_All : ImDrawCornerFlags_Right); RenderArrow(ImVec2(frame_bb.Max.x - arrow_size + style.FramePadding.y, frame_bb.Min.y + style.FramePadding.y), ImGuiDir_Down); } RenderFrameBorder(frame_bb.Min, frame_bb.Max, style.FrameRounding); if (preview_value != NULL && !(flags & ImGuiComboFlags_NoPreview)) RenderTextClipped(frame_bb.Min + style.FramePadding, value_bb.Max, preview_value, NULL, NULL, ImVec2(0.0f,0.0f)); if (label_size.x > 0) RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label); if ((pressed || g.NavActivateId == id) && !popup_open) { if (window->DC.NavLayerCurrent == 0) window->NavLastIds[0] = id; OpenPopupEx(id); popup_open = true; } if (!popup_open) return false; if (backup_next_window_size_constraint) { g.NextWindowData.SizeConstraintCond = backup_next_window_size_constraint; g.NextWindowData.SizeConstraintRect.Min.x = ImMax(g.NextWindowData.SizeConstraintRect.Min.x, w); } else { if ((flags & ImGuiComboFlags_HeightMask_) == 0) flags |= ImGuiComboFlags_HeightRegular; IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiComboFlags_HeightMask_)); // Only one int popup_max_height_in_items = -1; if (flags & ImGuiComboFlags_HeightRegular) popup_max_height_in_items = 8; else if (flags & ImGuiComboFlags_HeightSmall) popup_max_height_in_items = 4; else if (flags & ImGuiComboFlags_HeightLarge) popup_max_height_in_items = 20; SetNextWindowSizeConstraints(ImVec2(w, 0.0f), ImVec2(FLT_MAX, CalcMaxPopupHeightFromItemCount(popup_max_height_in_items))); } char name[16]; ImFormatString(name, IM_ARRAYSIZE(name), "##Combo_%02d", g.CurrentPopupStack.Size); // Recycle windows based on depth // Peak into expected window size so we can position it if (ImGuiWindow* popup_window = FindWindowByName(name)) if (popup_window->WasActive) { ImVec2 size_expected = CalcWindowExpectedSize(popup_window); if (flags & ImGuiComboFlags_PopupAlignLeft) popup_window->AutoPosLastDirection = ImGuiDir_Left; ImRect r_outer = GetWindowAllowedExtentRect(popup_window); ImVec2 pos = FindBestWindowPosForPopupEx(frame_bb.GetBL(), size_expected, &popup_window->AutoPosLastDirection, r_outer, frame_bb, ImGuiPopupPositionPolicy_ComboBox); SetNextWindowPos(pos); } // Horizontally align ourselves with the framed text ImGuiWindowFlags window_flags = ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_Popup | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings; PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(style.FramePadding.x, style.WindowPadding.y)); bool ret = Begin(name, NULL, window_flags); PopStyleVar(); if (!ret) { EndPopup(); IM_ASSERT(0); // This should never happen as we tested for IsPopupOpen() above return false; } return true; } void ImGui::EndCombo() { EndPopup(); } // Getter for the old Combo() API: const char*[] static bool Items_ArrayGetter(void* data, int idx, const char** out_text) { const char* const* items = (const char* const*)data; if (out_text) *out_text = items[idx]; return true; } // Getter for the old Combo() API: "item1\0item2\0item3\0" static bool Items_SingleStringGetter(void* data, int idx, const char** out_text) { // FIXME-OPT: we could pre-compute the indices to fasten this. But only 1 active combo means the waste is limited. const char* items_separated_by_zeros = (const char*)data; int items_count = 0; const char* p = items_separated_by_zeros; while (*p) { if (idx == items_count) break; p += strlen(p) + 1; items_count++; } if (!*p) return false; if (out_text) *out_text = p; return true; } // Old API, prefer using BeginCombo() nowadays if you can. bool ImGui::Combo(const char* label, int* current_item, bool (*items_getter)(void*, int, const char**), void* data, int items_count, int popup_max_height_in_items) { ImGuiContext& g = *GImGui; // Call the getter to obtain the preview string which is a parameter to BeginCombo() const char* preview_value = NULL; if (*current_item >= 0 && *current_item < items_count) items_getter(data, *current_item, &preview_value); // The old Combo() API exposed "popup_max_height_in_items". The new more general BeginCombo() API doesn't have/need it, but we emulate it here. if (popup_max_height_in_items != -1 && !g.NextWindowData.SizeConstraintCond) SetNextWindowSizeConstraints(ImVec2(0,0), ImVec2(FLT_MAX, CalcMaxPopupHeightFromItemCount(popup_max_height_in_items))); if (!BeginCombo(label, preview_value, ImGuiComboFlags_None)) return false; // Display items // FIXME-OPT: Use clipper (but we need to disable it on the appearing frame to make sure our call to SetItemDefaultFocus() is processed) bool value_changed = false; for (int i = 0; i < items_count; i++) { PushID((void*)(intptr_t)i); const bool item_selected = (i == *current_item); const char* item_text; if (!items_getter(data, i, &item_text)) item_text = "*Unknown item*"; if (Selectable(item_text, item_selected)) { value_changed = true; *current_item = i; } if (item_selected) SetItemDefaultFocus(); PopID(); } EndCombo(); return value_changed; } // Combo box helper allowing to pass an array of strings. bool ImGui::Combo(const char* label, int* current_item, const char* const items[], int items_count, int height_in_items) { const bool value_changed = Combo(label, current_item, Items_ArrayGetter, (void*)items, items_count, height_in_items); return value_changed; } // Combo box helper allowing to pass all items in a single string literal holding multiple zero-terminated items "item1\0item2\0" bool ImGui::Combo(const char* label, int* current_item, const char* items_separated_by_zeros, int height_in_items) { int items_count = 0; const char* p = items_separated_by_zeros; // FIXME-OPT: Avoid computing this, or at least only when combo is open while (*p) { p += strlen(p) + 1; items_count++; } bool value_changed = Combo(label, current_item, Items_SingleStringGetter, (void*)items_separated_by_zeros, items_count, height_in_items); return value_changed; } //------------------------------------------------------------------------- // WIDGETS: Data Type and Data Formatting Helpers [Internal] // - PatchFormatStringFloatToInt() // - DataTypeFormatString() // - DataTypeApplyOp() // - DataTypeApplyOpFromText() // - GetMinimumStepAtDecimalPrecision // - RoundScalarWithFormat<>() //------------------------------------------------------------------------- //------------------------------------------------------------------------- // WIDGETS: Drags // - DragBehaviorT<>() [Internal] // - DragBehavior() [Internal] // - DragScalar() // - DragScalarN() // - DragFloat() // - DragFloat2() // - DragFloat3() // - DragFloat4() // - DragFloatRange2() // - DragInt() // - DragInt2() // - DragInt3() // - DragInt4() // - DragIntRange2() //------------------------------------------------------------------------- //------------------------------------------------------------------------- // WIDGETS: Sliders // - SliderBehaviorT<>() [Internal] // - SliderBehavior() [Internal] // - SliderScalar() // - SliderScalarN() // - SliderFloat() // - SliderFloat2() // - SliderFloat3() // - SliderFloat4() // - SliderAngle() // - SliderInt() // - SliderInt2() // - SliderInt3() // - SliderInt4() // - VSliderScalar() // - VSliderFloat() // - VSliderInt() //------------------------------------------------------------------------- //------------------------------------------------------------------------- // WIDGETS: Inputs (_excepted InputText_) // - ImParseFormatFindStart() // - ImParseFormatFindEnd() // - ImParseFormatTrimDecorations() // - ImParseFormatPrecision() // - InputScalarAsWidgetReplacement() [Internal] // - InputScalar() // - InputScalarN() // - InputFloat() // - InputFloat2() // - InputFloat3() // - InputFloat4() // - InputInt() // - InputInt2() // - InputInt3() // - InputInt4() // - InputDouble() //------------------------------------------------------------------------- //------------------------------------------------------------------------- // WIDGETS: InputText // - InputText() // - InputTextMultiline() // - InputTextEx() [Internal] //------------------------------------------------------------------------- //------------------------------------------------------------------------- // WIDGETS: Color Editor / Picker // - ColorEdit3() // - ColorEdit4() // - ColorPicker3() // - RenderColorRectWithAlphaCheckerboard() [Internal] // - ColorPicker4() // - ColorButton() // - SetColorEditOptions() // - ColorTooltip() [Internal] // - ColorEditOptionsPopup() [Internal] // - ColorPickerOptionsPopup() [Internal] //------------------------------------------------------------------------- bool ImGui::ColorEdit3(const char* label, float col[3], ImGuiColorEditFlags flags) { return ColorEdit4(label, col, flags | ImGuiColorEditFlags_NoAlpha); } // Edit colors components (each component in 0.0f..1.0f range). // See enum ImGuiColorEditFlags_ for available options. e.g. Only access 3 floats if ImGuiColorEditFlags_NoAlpha flag is set. // With typical options: Left-click on colored square to open color picker. Right-click to open option menu. CTRL-Click over input fields to edit them and TAB to go to next item. bool ImGui::ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flags) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; const float square_sz = GetFrameHeight(); const float w_extra = (flags & ImGuiColorEditFlags_NoSmallPreview) ? 0.0f : (square_sz + style.ItemInnerSpacing.x); const float w_items_all = CalcItemWidth() - w_extra; const char* label_display_end = FindRenderedTextEnd(label); BeginGroup(); PushID(label); // If we're not showing any slider there's no point in doing any HSV conversions const ImGuiColorEditFlags flags_untouched = flags; if (flags & ImGuiColorEditFlags_NoInputs) flags = (flags & (~ImGuiColorEditFlags__InputsMask)) | ImGuiColorEditFlags_RGB | ImGuiColorEditFlags_NoOptions; // Context menu: display and modify options (before defaults are applied) if (!(flags & ImGuiColorEditFlags_NoOptions)) ColorEditOptionsPopup(col, flags); // Read stored options if (!(flags & ImGuiColorEditFlags__InputsMask)) flags |= (g.ColorEditOptions & ImGuiColorEditFlags__InputsMask); if (!(flags & ImGuiColorEditFlags__DataTypeMask)) flags |= (g.ColorEditOptions & ImGuiColorEditFlags__DataTypeMask); if (!(flags & ImGuiColorEditFlags__PickerMask)) flags |= (g.ColorEditOptions & ImGuiColorEditFlags__PickerMask); flags |= (g.ColorEditOptions & ~(ImGuiColorEditFlags__InputsMask | ImGuiColorEditFlags__DataTypeMask | ImGuiColorEditFlags__PickerMask)); const bool alpha = (flags & ImGuiColorEditFlags_NoAlpha) == 0; const bool hdr = (flags & ImGuiColorEditFlags_HDR) != 0; const int components = alpha ? 4 : 3; // Convert to the formats we need float f[4] = { col[0], col[1], col[2], alpha ? col[3] : 1.0f }; if (flags & ImGuiColorEditFlags_HSV) ColorConvertRGBtoHSV(f[0], f[1], f[2], f[0], f[1], f[2]); int i[4] = { IM_F32_TO_INT8_UNBOUND(f[0]), IM_F32_TO_INT8_UNBOUND(f[1]), IM_F32_TO_INT8_UNBOUND(f[2]), IM_F32_TO_INT8_UNBOUND(f[3]) }; bool value_changed = false; bool value_changed_as_float = false; if ((flags & (ImGuiColorEditFlags_RGB | ImGuiColorEditFlags_HSV)) != 0 && (flags & ImGuiColorEditFlags_NoInputs) == 0) { // RGB/HSV 0..255 Sliders const float w_item_one = ImMax(1.0f, (float)(int)((w_items_all - (style.ItemInnerSpacing.x) * (components-1)) / (float)components)); const float w_item_last = ImMax(1.0f, (float)(int)(w_items_all - (w_item_one + style.ItemInnerSpacing.x) * (components-1))); const bool hide_prefix = (w_item_one <= CalcTextSize((flags & ImGuiColorEditFlags_Float) ? "M:0.000" : "M:000").x); const char* ids[4] = { "##X", "##Y", "##Z", "##W" }; const char* fmt_table_int[3][4] = { { "%3d", "%3d", "%3d", "%3d" }, // Short display { "R:%3d", "G:%3d", "B:%3d", "A:%3d" }, // Long display for RGBA { "H:%3d", "S:%3d", "V:%3d", "A:%3d" } // Long display for HSVA }; const char* fmt_table_float[3][4] = { { "%0.3f", "%0.3f", "%0.3f", "%0.3f" }, // Short display { "R:%0.3f", "G:%0.3f", "B:%0.3f", "A:%0.3f" }, // Long display for RGBA { "H:%0.3f", "S:%0.3f", "V:%0.3f", "A:%0.3f" } // Long display for HSVA }; const int fmt_idx = hide_prefix ? 0 : (flags & ImGuiColorEditFlags_HSV) ? 2 : 1; PushItemWidth(w_item_one); for (int n = 0; n < components; n++) { if (n > 0) SameLine(0, style.ItemInnerSpacing.x); if (n + 1 == components) PushItemWidth(w_item_last); if (flags & ImGuiColorEditFlags_Float) value_changed = value_changed_as_float = value_changed | DragFloat(ids[n], &f[n], 1.0f/255.0f, 0.0f, hdr ? 0.0f : 1.0f, fmt_table_float[fmt_idx][n]); else value_changed |= DragInt(ids[n], &i[n], 1.0f, 0, hdr ? 0 : 255, fmt_table_int[fmt_idx][n]); if (!(flags & ImGuiColorEditFlags_NoOptions)) OpenPopupOnItemClick("context"); } PopItemWidth(); PopItemWidth(); } else if ((flags & ImGuiColorEditFlags_HEX) != 0 && (flags & ImGuiColorEditFlags_NoInputs) == 0) { // RGB Hexadecimal Input char buf[64]; if (alpha) ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X%02X", ImClamp(i[0],0,255), ImClamp(i[1],0,255), ImClamp(i[2],0,255), ImClamp(i[3],0,255)); else ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X", ImClamp(i[0],0,255), ImClamp(i[1],0,255), ImClamp(i[2],0,255)); PushItemWidth(w_items_all); if (InputText("##Text", buf, IM_ARRAYSIZE(buf), ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsUppercase)) { value_changed = true; char* p = buf; while (*p == '#' || ImCharIsBlankA(*p)) p++; i[0] = i[1] = i[2] = i[3] = 0; if (alpha) sscanf(p, "%02X%02X%02X%02X", (unsigned int*)&i[0], (unsigned int*)&i[1], (unsigned int*)&i[2], (unsigned int*)&i[3]); // Treat at unsigned (%X is unsigned) else sscanf(p, "%02X%02X%02X", (unsigned int*)&i[0], (unsigned int*)&i[1], (unsigned int*)&i[2]); } if (!(flags & ImGuiColorEditFlags_NoOptions)) OpenPopupOnItemClick("context"); PopItemWidth(); } ImGuiWindow* picker_active_window = NULL; if (!(flags & ImGuiColorEditFlags_NoSmallPreview)) { if (!(flags & ImGuiColorEditFlags_NoInputs)) SameLine(0, style.ItemInnerSpacing.x); const ImVec4 col_v4(col[0], col[1], col[2], alpha ? col[3] : 1.0f); if (ColorButton("##ColorButton", col_v4, flags)) { if (!(flags & ImGuiColorEditFlags_NoPicker)) { // Store current color and open a picker g.ColorPickerRef = col_v4; OpenPopup("picker"); SetNextWindowPos(window->DC.LastItemRect.GetBL() + ImVec2(-1,style.ItemSpacing.y)); } } if (!(flags & ImGuiColorEditFlags_NoOptions)) OpenPopupOnItemClick("context"); if (BeginPopup("picker")) { picker_active_window = g.CurrentWindow; if (label != label_display_end) { TextUnformatted(label, label_display_end); Separator(); } ImGuiColorEditFlags picker_flags_to_forward = ImGuiColorEditFlags__DataTypeMask | ImGuiColorEditFlags__PickerMask | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaBar; ImGuiColorEditFlags picker_flags = (flags_untouched & picker_flags_to_forward) | ImGuiColorEditFlags__InputsMask | ImGuiColorEditFlags_NoLabel | ImGuiColorEditFlags_AlphaPreviewHalf; PushItemWidth(square_sz * 12.0f); // Use 256 + bar sizes? value_changed |= ColorPicker4("##picker", col, picker_flags, &g.ColorPickerRef.x); PopItemWidth(); EndPopup(); } } if (label != label_display_end && !(flags & ImGuiColorEditFlags_NoLabel)) { SameLine(0, style.ItemInnerSpacing.x); TextUnformatted(label, label_display_end); } // Convert back if (picker_active_window == NULL) { if (!value_changed_as_float) for (int n = 0; n < 4; n++) f[n] = i[n] / 255.0f; if (flags & ImGuiColorEditFlags_HSV) ColorConvertHSVtoRGB(f[0], f[1], f[2], f[0], f[1], f[2]); if (value_changed) { col[0] = f[0]; col[1] = f[1]; col[2] = f[2]; if (alpha) col[3] = f[3]; } } PopID(); EndGroup(); // Drag and Drop Target // NB: The flag test is merely an optional micro-optimization, BeginDragDropTarget() does the same test. if ((window->DC.LastItemStatusFlags & ImGuiItemStatusFlags_HoveredRect) && !(flags & ImGuiColorEditFlags_NoDragDrop) && BeginDragDropTarget()) { if (const ImGuiPayload* payload = AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F)) { memcpy((float*)col, payload->Data, sizeof(float) * 3); value_changed = true; } if (const ImGuiPayload* payload = AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F)) { memcpy((float*)col, payload->Data, sizeof(float) * components); value_changed = true; } EndDragDropTarget(); } // When picker is being actively used, use its active id so IsItemActive() will function on ColorEdit4(). if (picker_active_window && g.ActiveId != 0 && g.ActiveIdWindow == picker_active_window) window->DC.LastItemId = g.ActiveId; if (value_changed) MarkItemEdited(window->DC.LastItemId); return value_changed; } bool ImGui::ColorPicker3(const char* label, float col[3], ImGuiColorEditFlags flags) { float col4[4] = { col[0], col[1], col[2], 1.0f }; if (!ColorPicker4(label, col4, flags | ImGuiColorEditFlags_NoAlpha)) return false; col[0] = col4[0]; col[1] = col4[1]; col[2] = col4[2]; return true; } static inline ImU32 ImAlphaBlendColor(ImU32 col_a, ImU32 col_b) { float t = ((col_b >> IM_COL32_A_SHIFT) & 0xFF) / 255.f; int r = ImLerp((int)(col_a >> IM_COL32_R_SHIFT) & 0xFF, (int)(col_b >> IM_COL32_R_SHIFT) & 0xFF, t); int g = ImLerp((int)(col_a >> IM_COL32_G_SHIFT) & 0xFF, (int)(col_b >> IM_COL32_G_SHIFT) & 0xFF, t); int b = ImLerp((int)(col_a >> IM_COL32_B_SHIFT) & 0xFF, (int)(col_b >> IM_COL32_B_SHIFT) & 0xFF, t); return IM_COL32(r, g, b, 0xFF); } // Helper for ColorPicker4() // NB: This is rather brittle and will show artifact when rounding this enabled if rounded corners overlap multiple cells. Caller currently responsible for avoiding that. // I spent a non reasonable amount of time trying to getting this right for ColorButton with rounding+anti-aliasing+ImGuiColorEditFlags_HalfAlphaPreview flag + various grid sizes and offsets, and eventually gave up... probably more reasonable to disable rounding alltogether. void ImGui::RenderColorRectWithAlphaCheckerboard(ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, int rounding_corners_flags) { ImGuiWindow* window = GetCurrentWindow(); if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF) { ImU32 col_bg1 = GetColorU32(ImAlphaBlendColor(IM_COL32(204,204,204,255), col)); ImU32 col_bg2 = GetColorU32(ImAlphaBlendColor(IM_COL32(128,128,128,255), col)); window->DrawList->AddRectFilled(p_min, p_max, col_bg1, rounding, rounding_corners_flags); int yi = 0; for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++) { float y1 = ImClamp(y, p_min.y, p_max.y), y2 = ImMin(y + grid_step, p_max.y); if (y2 <= y1) continue; for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f) { float x1 = ImClamp(x, p_min.x, p_max.x), x2 = ImMin(x + grid_step, p_max.x); if (x2 <= x1) continue; int rounding_corners_flags_cell = 0; if (y1 <= p_min.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImDrawCornerFlags_TopLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImDrawCornerFlags_TopRight; } if (y2 >= p_max.y) { if (x1 <= p_min.x) rounding_corners_flags_cell |= ImDrawCornerFlags_BotLeft; if (x2 >= p_max.x) rounding_corners_flags_cell |= ImDrawCornerFlags_BotRight; } rounding_corners_flags_cell &= rounding_corners_flags; window->DrawList->AddRectFilled(ImVec2(x1,y1), ImVec2(x2,y2), col_bg2, rounding_corners_flags_cell ? rounding : 0.0f, rounding_corners_flags_cell); } } } else { window->DrawList->AddRectFilled(p_min, p_max, col, rounding, rounding_corners_flags); } } // Helper for ColorPicker4() static void RenderArrowsForVerticalBar(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, float bar_w) { ImGui::RenderArrowPointingAt(draw_list, ImVec2(pos.x + half_sz.x + 1, pos.y), ImVec2(half_sz.x + 2, half_sz.y + 1), ImGuiDir_Right, IM_COL32_BLACK); ImGui::RenderArrowPointingAt(draw_list, ImVec2(pos.x + half_sz.x, pos.y), half_sz, ImGuiDir_Right, IM_COL32_WHITE); ImGui::RenderArrowPointingAt(draw_list, ImVec2(pos.x + bar_w - half_sz.x - 1, pos.y), ImVec2(half_sz.x + 2, half_sz.y + 1), ImGuiDir_Left, IM_COL32_BLACK); ImGui::RenderArrowPointingAt(draw_list, ImVec2(pos.x + bar_w - half_sz.x, pos.y), half_sz, ImGuiDir_Left, IM_COL32_WHITE); } // Note: ColorPicker4() only accesses 3 floats if ImGuiColorEditFlags_NoAlpha flag is set. // FIXME: we adjust the big color square height based on item width, which may cause a flickering feedback loop (if automatic height makes a vertical scrollbar appears, affecting automatic width..) bool ImGui::ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags flags, const float* ref_col) { ImGuiContext& g = *GImGui; ImGuiWindow* window = GetCurrentWindow(); ImDrawList* draw_list = window->DrawList; ImGuiStyle& style = g.Style; ImGuiIO& io = g.IO; PushID(label); BeginGroup(); if (!(flags & ImGuiColorEditFlags_NoSidePreview)) flags |= ImGuiColorEditFlags_NoSmallPreview; // Context menu: display and store options. if (!(flags & ImGuiColorEditFlags_NoOptions)) ColorPickerOptionsPopup(col, flags); // Read stored options if (!(flags & ImGuiColorEditFlags__PickerMask)) flags |= ((g.ColorEditOptions & ImGuiColorEditFlags__PickerMask) ? g.ColorEditOptions : ImGuiColorEditFlags__OptionsDefault) & ImGuiColorEditFlags__PickerMask; IM_ASSERT(ImIsPowerOfTwo((int)(flags & ImGuiColorEditFlags__PickerMask))); // Check that only 1 is selected if (!(flags & ImGuiColorEditFlags_NoOptions)) flags |= (g.ColorEditOptions & ImGuiColorEditFlags_AlphaBar); // Setup int components = (flags & ImGuiColorEditFlags_NoAlpha) ? 3 : 4; bool alpha_bar = (flags & ImGuiColorEditFlags_AlphaBar) && !(flags & ImGuiColorEditFlags_NoAlpha); ImVec2 picker_pos = window->DC.CursorPos; float square_sz = GetFrameHeight(); float bars_width = square_sz; // Arbitrary smallish width of Hue/Alpha picking bars float sv_picker_size = ImMax(bars_width * 1, CalcItemWidth() - (alpha_bar ? 2 : 1) * (bars_width + style.ItemInnerSpacing.x)); // Saturation/Value picking box float bar0_pos_x = picker_pos.x + sv_picker_size + style.ItemInnerSpacing.x; float bar1_pos_x = bar0_pos_x + bars_width + style.ItemInnerSpacing.x; float bars_triangles_half_sz = (float)(int)(bars_width * 0.20f); float backup_initial_col[4]; memcpy(backup_initial_col, col, components * sizeof(float)); float wheel_thickness = sv_picker_size * 0.08f; float wheel_r_outer = sv_picker_size * 0.50f; float wheel_r_inner = wheel_r_outer - wheel_thickness; ImVec2 wheel_center(picker_pos.x + (sv_picker_size + bars_width)*0.5f, picker_pos.y + sv_picker_size*0.5f); // Note: the triangle is displayed rotated with triangle_pa pointing to Hue, but most coordinates stays unrotated for logic. float triangle_r = wheel_r_inner - (int)(sv_picker_size * 0.027f); ImVec2 triangle_pa = ImVec2(triangle_r, 0.0f); // Hue point. ImVec2 triangle_pb = ImVec2(triangle_r * -0.5f, triangle_r * -0.866025f); // Black point. ImVec2 triangle_pc = ImVec2(triangle_r * -0.5f, triangle_r * +0.866025f); // White point. float H,S,V; ColorConvertRGBtoHSV(col[0], col[1], col[2], H, S, V); bool value_changed = false, value_changed_h = false, value_changed_sv = false; PushItemFlag(ImGuiItemFlags_NoNav, true); if (flags & ImGuiColorEditFlags_PickerHueWheel) { // Hue wheel + SV triangle logic InvisibleButton("hsv", ImVec2(sv_picker_size + style.ItemInnerSpacing.x + bars_width, sv_picker_size)); if (IsItemActive()) { ImVec2 initial_off = g.IO.MouseClickedPos[0] - wheel_center; ImVec2 current_off = g.IO.MousePos - wheel_center; float initial_dist2 = ImLengthSqr(initial_off); if (initial_dist2 >= (wheel_r_inner-1)*(wheel_r_inner-1) && initial_dist2 <= (wheel_r_outer+1)*(wheel_r_outer+1)) { // Interactive with Hue wheel H = ImAtan2(current_off.y, current_off.x) / IM_PI*0.5f; if (H < 0.0f) H += 1.0f; value_changed = value_changed_h = true; } float cos_hue_angle = ImCos(-H * 2.0f * IM_PI); float sin_hue_angle = ImSin(-H * 2.0f * IM_PI); if (ImTriangleContainsPoint(triangle_pa, triangle_pb, triangle_pc, ImRotate(initial_off, cos_hue_angle, sin_hue_angle))) { // Interacting with SV triangle ImVec2 current_off_unrotated = ImRotate(current_off, cos_hue_angle, sin_hue_angle); if (!ImTriangleContainsPoint(triangle_pa, triangle_pb, triangle_pc, current_off_unrotated)) current_off_unrotated = ImTriangleClosestPoint(triangle_pa, triangle_pb, triangle_pc, current_off_unrotated); float uu, vv, ww; ImTriangleBarycentricCoords(triangle_pa, triangle_pb, triangle_pc, current_off_unrotated, uu, vv, ww); V = ImClamp(1.0f - vv, 0.0001f, 1.0f); S = ImClamp(uu / V, 0.0001f, 1.0f); value_changed = value_changed_sv = true; } } if (!(flags & ImGuiColorEditFlags_NoOptions)) OpenPopupOnItemClick("context"); } else if (flags & ImGuiColorEditFlags_PickerHueBar) { // SV rectangle logic InvisibleButton("sv", ImVec2(sv_picker_size, sv_picker_size)); if (IsItemActive()) { S = ImSaturate((io.MousePos.x - picker_pos.x) / (sv_picker_size-1)); V = 1.0f - ImSaturate((io.MousePos.y - picker_pos.y) / (sv_picker_size-1)); value_changed = value_changed_sv = true; } if (!(flags & ImGuiColorEditFlags_NoOptions)) OpenPopupOnItemClick("context"); // Hue bar logic SetCursorScreenPos(ImVec2(bar0_pos_x, picker_pos.y)); InvisibleButton("hue", ImVec2(bars_width, sv_picker_size)); if (IsItemActive()) { H = ImSaturate((io.MousePos.y - picker_pos.y) / (sv_picker_size-1)); value_changed = value_changed_h = true; } } // Alpha bar logic if (alpha_bar) { SetCursorScreenPos(ImVec2(bar1_pos_x, picker_pos.y)); InvisibleButton("alpha", ImVec2(bars_width, sv_picker_size)); if (IsItemActive()) { col[3] = 1.0f - ImSaturate((io.MousePos.y - picker_pos.y) / (sv_picker_size-1)); value_changed = true; } } PopItemFlag(); // ImGuiItemFlags_NoNav if (!(flags & ImGuiColorEditFlags_NoSidePreview)) { SameLine(0, style.ItemInnerSpacing.x); BeginGroup(); } if (!(flags & ImGuiColorEditFlags_NoLabel)) { const char* label_display_end = FindRenderedTextEnd(label); if (label != label_display_end) { if ((flags & ImGuiColorEditFlags_NoSidePreview)) SameLine(0, style.ItemInnerSpacing.x); TextUnformatted(label, label_display_end); } } if (!(flags & ImGuiColorEditFlags_NoSidePreview)) { PushItemFlag(ImGuiItemFlags_NoNavDefaultFocus, true); ImVec4 col_v4(col[0], col[1], col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : col[3]); if ((flags & ImGuiColorEditFlags_NoLabel)) Text("Current"); ColorButton("##current", col_v4, (flags & (ImGuiColorEditFlags_HDR|ImGuiColorEditFlags_AlphaPreview|ImGuiColorEditFlags_AlphaPreviewHalf|ImGuiColorEditFlags_NoTooltip)), ImVec2(square_sz * 3, square_sz * 2)); if (ref_col != NULL) { Text("Original"); ImVec4 ref_col_v4(ref_col[0], ref_col[1], ref_col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : ref_col[3]); if (ColorButton("##original", ref_col_v4, (flags & (ImGuiColorEditFlags_HDR|ImGuiColorEditFlags_AlphaPreview|ImGuiColorEditFlags_AlphaPreviewHalf|ImGuiColorEditFlags_NoTooltip)), ImVec2(square_sz * 3, square_sz * 2))) { memcpy(col, ref_col, components * sizeof(float)); value_changed = true; } } PopItemFlag(); EndGroup(); } // Convert back color to RGB if (value_changed_h || value_changed_sv) ColorConvertHSVtoRGB(H >= 1.0f ? H - 10 * 1e-6f : H, S > 0.0f ? S : 10*1e-6f, V > 0.0f ? V : 1e-6f, col[0], col[1], col[2]); // R,G,B and H,S,V slider color editor bool value_changed_fix_hue_wrap = false; if ((flags & ImGuiColorEditFlags_NoInputs) == 0) { PushItemWidth((alpha_bar ? bar1_pos_x : bar0_pos_x) + bars_width - picker_pos.x); ImGuiColorEditFlags sub_flags_to_forward = ImGuiColorEditFlags__DataTypeMask | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_NoOptions | ImGuiColorEditFlags_NoSmallPreview | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf; ImGuiColorEditFlags sub_flags = (flags & sub_flags_to_forward) | ImGuiColorEditFlags_NoPicker; if (flags & ImGuiColorEditFlags_RGB || (flags & ImGuiColorEditFlags__InputsMask) == 0) if (ColorEdit4("##rgb", col, sub_flags | ImGuiColorEditFlags_RGB)) { // FIXME: Hackily differenciating using the DragInt (ActiveId != 0 && !ActiveIdAllowOverlap) vs. using the InputText or DropTarget. // For the later we don't want to run the hue-wrap canceling code. If you are well versed in HSV picker please provide your input! (See #2050) value_changed_fix_hue_wrap = (g.ActiveId != 0 && !g.ActiveIdAllowOverlap); value_changed = true; } if (flags & ImGuiColorEditFlags_HSV || (flags & ImGuiColorEditFlags__InputsMask) == 0) value_changed |= ColorEdit4("##hsv", col, sub_flags | ImGuiColorEditFlags_HSV); if (flags & ImGuiColorEditFlags_HEX || (flags & ImGuiColorEditFlags__InputsMask) == 0) value_changed |= ColorEdit4("##hex", col, sub_flags | ImGuiColorEditFlags_HEX); PopItemWidth(); } // Try to cancel hue wrap (after ColorEdit4 call), if any if (value_changed_fix_hue_wrap) { float new_H, new_S, new_V; ColorConvertRGBtoHSV(col[0], col[1], col[2], new_H, new_S, new_V); if (new_H <= 0 && H > 0) { if (new_V <= 0 && V != new_V) ColorConvertHSVtoRGB(H, S, new_V <= 0 ? V * 0.5f : new_V, col[0], col[1], col[2]); else if (new_S <= 0) ColorConvertHSVtoRGB(H, new_S <= 0 ? S * 0.5f : new_S, new_V, col[0], col[1], col[2]); } } ImVec4 hue_color_f(1, 1, 1, 1); ColorConvertHSVtoRGB(H, 1, 1, hue_color_f.x, hue_color_f.y, hue_color_f.z); ImU32 hue_color32 = ColorConvertFloat4ToU32(hue_color_f); ImU32 col32_no_alpha = ColorConvertFloat4ToU32(ImVec4(col[0], col[1], col[2], 1.0f)); const ImU32 hue_colors[6+1] = { IM_COL32(255,0,0,255), IM_COL32(255,255,0,255), IM_COL32(0,255,0,255), IM_COL32(0,255,255,255), IM_COL32(0,0,255,255), IM_COL32(255,0,255,255), IM_COL32(255,0,0,255) }; ImVec2 sv_cursor_pos; if (flags & ImGuiColorEditFlags_PickerHueWheel) { // Render Hue Wheel const float aeps = 1.5f / wheel_r_outer; // Half a pixel arc length in radians (2pi cancels out). const int segment_per_arc = ImMax(4, (int)wheel_r_outer / 12); for (int n = 0; n < 6; n++) { const float a0 = (n) /6.0f * 2.0f * IM_PI - aeps; const float a1 = (n+1.0f)/6.0f * 2.0f * IM_PI + aeps; const int vert_start_idx = draw_list->VtxBuffer.Size; draw_list->PathArcTo(wheel_center, (wheel_r_inner + wheel_r_outer)*0.5f, a0, a1, segment_per_arc); draw_list->PathStroke(IM_COL32_WHITE, false, wheel_thickness); const int vert_end_idx = draw_list->VtxBuffer.Size; // Paint colors over existing vertices ImVec2 gradient_p0(wheel_center.x + ImCos(a0) * wheel_r_inner, wheel_center.y + ImSin(a0) * wheel_r_inner); ImVec2 gradient_p1(wheel_center.x + ImCos(a1) * wheel_r_inner, wheel_center.y + ImSin(a1) * wheel_r_inner); ShadeVertsLinearColorGradientKeepAlpha(draw_list, vert_start_idx, vert_end_idx, gradient_p0, gradient_p1, hue_colors[n], hue_colors[n+1]); } // Render Cursor + preview on Hue Wheel float cos_hue_angle = ImCos(H * 2.0f * IM_PI); float sin_hue_angle = ImSin(H * 2.0f * IM_PI); ImVec2 hue_cursor_pos(wheel_center.x + cos_hue_angle * (wheel_r_inner+wheel_r_outer)*0.5f, wheel_center.y + sin_hue_angle * (wheel_r_inner+wheel_r_outer)*0.5f); float hue_cursor_rad = value_changed_h ? wheel_thickness * 0.65f : wheel_thickness * 0.55f; int hue_cursor_segments = ImClamp((int)(hue_cursor_rad / 1.4f), 9, 32); draw_list->AddCircleFilled(hue_cursor_pos, hue_cursor_rad, hue_color32, hue_cursor_segments); draw_list->AddCircle(hue_cursor_pos, hue_cursor_rad+1, IM_COL32(128,128,128,255), hue_cursor_segments); draw_list->AddCircle(hue_cursor_pos, hue_cursor_rad, IM_COL32_WHITE, hue_cursor_segments); // Render SV triangle (rotated according to hue) ImVec2 tra = wheel_center + ImRotate(triangle_pa, cos_hue_angle, sin_hue_angle); ImVec2 trb = wheel_center + ImRotate(triangle_pb, cos_hue_angle, sin_hue_angle); ImVec2 trc = wheel_center + ImRotate(triangle_pc, cos_hue_angle, sin_hue_angle); ImVec2 uv_white = GetFontTexUvWhitePixel(); draw_list->PrimReserve(6, 6); draw_list->PrimVtx(tra, uv_white, hue_color32); draw_list->PrimVtx(trb, uv_white, hue_color32); draw_list->PrimVtx(trc, uv_white, IM_COL32_WHITE); draw_list->PrimVtx(tra, uv_white, IM_COL32_BLACK_TRANS); draw_list->PrimVtx(trb, uv_white, IM_COL32_BLACK); draw_list->PrimVtx(trc, uv_white, IM_COL32_BLACK_TRANS); draw_list->AddTriangle(tra, trb, trc, IM_COL32(128,128,128,255), 1.5f); sv_cursor_pos = ImLerp(ImLerp(trc, tra, ImSaturate(S)), trb, ImSaturate(1 - V)); } else if (flags & ImGuiColorEditFlags_PickerHueBar) { // Render SV Square draw_list->AddRectFilledMultiColor(picker_pos, picker_pos + ImVec2(sv_picker_size,sv_picker_size), IM_COL32_WHITE, hue_color32, hue_color32, IM_COL32_WHITE); draw_list->AddRectFilledMultiColor(picker_pos, picker_pos + ImVec2(sv_picker_size,sv_picker_size), IM_COL32_BLACK_TRANS, IM_COL32_BLACK_TRANS, IM_COL32_BLACK, IM_COL32_BLACK); RenderFrameBorder(picker_pos, picker_pos + ImVec2(sv_picker_size,sv_picker_size), 0.0f); sv_cursor_pos.x = ImClamp((float)(int)(picker_pos.x + ImSaturate(S) * sv_picker_size + 0.5f), picker_pos.x + 2, picker_pos.x + sv_picker_size - 2); // Sneakily prevent the circle to stick out too much sv_cursor_pos.y = ImClamp((float)(int)(picker_pos.y + ImSaturate(1 - V) * sv_picker_size + 0.5f), picker_pos.y + 2, picker_pos.y + sv_picker_size - 2); // Render Hue Bar for (int i = 0; i < 6; ++i) draw_list->AddRectFilledMultiColor(ImVec2(bar0_pos_x, picker_pos.y + i * (sv_picker_size / 6)), ImVec2(bar0_pos_x + bars_width, picker_pos.y + (i + 1) * (sv_picker_size / 6)), hue_colors[i], hue_colors[i], hue_colors[i + 1], hue_colors[i + 1]); float bar0_line_y = (float)(int)(picker_pos.y + H * sv_picker_size + 0.5f); RenderFrameBorder(ImVec2(bar0_pos_x, picker_pos.y), ImVec2(bar0_pos_x + bars_width, picker_pos.y + sv_picker_size), 0.0f); RenderArrowsForVerticalBar(draw_list, ImVec2(bar0_pos_x - 1, bar0_line_y), ImVec2(bars_triangles_half_sz + 1, bars_triangles_half_sz), bars_width + 2.0f); } // Render cursor/preview circle (clamp S/V within 0..1 range because floating points colors may lead HSV values to be out of range) float sv_cursor_rad = value_changed_sv ? 10.0f : 6.0f; draw_list->AddCircleFilled(sv_cursor_pos, sv_cursor_rad, col32_no_alpha, 12); draw_list->AddCircle(sv_cursor_pos, sv_cursor_rad+1, IM_COL32(128,128,128,255), 12); draw_list->AddCircle(sv_cursor_pos, sv_cursor_rad, IM_COL32_WHITE, 12); // Render alpha bar if (alpha_bar) { float alpha = ImSaturate(col[3]); ImRect bar1_bb(bar1_pos_x, picker_pos.y, bar1_pos_x + bars_width, picker_pos.y + sv_picker_size); RenderColorRectWithAlphaCheckerboard(bar1_bb.Min, bar1_bb.Max, IM_COL32(0,0,0,0), bar1_bb.GetWidth() / 2.0f, ImVec2(0.0f, 0.0f)); draw_list->AddRectFilledMultiColor(bar1_bb.Min, bar1_bb.Max, col32_no_alpha, col32_no_alpha, col32_no_alpha & ~IM_COL32_A_MASK, col32_no_alpha & ~IM_COL32_A_MASK); float bar1_line_y = (float)(int)(picker_pos.y + (1.0f - alpha) * sv_picker_size + 0.5f); RenderFrameBorder(bar1_bb.Min, bar1_bb.Max, 0.0f); RenderArrowsForVerticalBar(draw_list, ImVec2(bar1_pos_x - 1, bar1_line_y), ImVec2(bars_triangles_half_sz + 1, bars_triangles_half_sz), bars_width + 2.0f); } EndGroup(); if (value_changed && memcmp(backup_initial_col, col, components * sizeof(float)) == 0) value_changed = false; if (value_changed) MarkItemEdited(window->DC.LastItemId); PopID(); return value_changed; } // A little colored square. Return true when clicked. // FIXME: May want to display/ignore the alpha component in the color display? Yet show it in the tooltip. // 'desc_id' is not called 'label' because we don't display it next to the button, but only in the tooltip. bool ImGui::ColorButton(const char* desc_id, const ImVec4& col, ImGuiColorEditFlags flags, ImVec2 size) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; const ImGuiID id = window->GetID(desc_id); float default_size = GetFrameHeight(); if (size.x == 0.0f) size.x = default_size; if (size.y == 0.0f) size.y = default_size; const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + size); ItemSize(bb, (size.y >= default_size) ? g.Style.FramePadding.y : 0.0f); if (!ItemAdd(bb, id)) return false; bool hovered, held; bool pressed = ButtonBehavior(bb, id, &hovered, &held); if (flags & ImGuiColorEditFlags_NoAlpha) flags &= ~(ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf); ImVec4 col_without_alpha(col.x, col.y, col.z, 1.0f); float grid_step = ImMin(size.x, size.y) / 2.99f; float rounding = ImMin(g.Style.FrameRounding, grid_step * 0.5f); ImRect bb_inner = bb; float off = -0.75f; // The border (using Col_FrameBg) tends to look off when color is near-opaque and rounding is enabled. This offset seemed like a good middle ground to reduce those artifacts. bb_inner.Expand(off); if ((flags & ImGuiColorEditFlags_AlphaPreviewHalf) && col.w < 1.0f) { float mid_x = (float)(int)((bb_inner.Min.x + bb_inner.Max.x) * 0.5f + 0.5f); RenderColorRectWithAlphaCheckerboard(ImVec2(bb_inner.Min.x + grid_step, bb_inner.Min.y), bb_inner.Max, GetColorU32(col), grid_step, ImVec2(-grid_step + off, off), rounding, ImDrawCornerFlags_TopRight| ImDrawCornerFlags_BotRight); window->DrawList->AddRectFilled(bb_inner.Min, ImVec2(mid_x, bb_inner.Max.y), GetColorU32(col_without_alpha), rounding, ImDrawCornerFlags_TopLeft|ImDrawCornerFlags_BotLeft); } else { // Because GetColorU32() multiplies by the global style Alpha and we don't want to display a checkerboard if the source code had no alpha ImVec4 col_source = (flags & ImGuiColorEditFlags_AlphaPreview) ? col : col_without_alpha; if (col_source.w < 1.0f) RenderColorRectWithAlphaCheckerboard(bb_inner.Min, bb_inner.Max, GetColorU32(col_source), grid_step, ImVec2(off, off), rounding); else window->DrawList->AddRectFilled(bb_inner.Min, bb_inner.Max, GetColorU32(col_source), rounding, ImDrawCornerFlags_All); } RenderNavHighlight(bb, id); if (g.Style.FrameBorderSize > 0.0f) RenderFrameBorder(bb.Min, bb.Max, rounding); else window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_FrameBg), rounding); // Color button are often in need of some sort of border // Drag and Drop Source // NB: The ActiveId test is merely an optional micro-optimization, BeginDragDropSource() does the same test. if (g.ActiveId == id && !(flags & ImGuiColorEditFlags_NoDragDrop) && BeginDragDropSource()) { if (flags & ImGuiColorEditFlags_NoAlpha) SetDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F, &col, sizeof(float) * 3, ImGuiCond_Once); else SetDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F, &col, sizeof(float) * 4, ImGuiCond_Once); ColorButton(desc_id, col, flags); SameLine(); TextUnformatted("Color"); EndDragDropSource(); } // Tooltip if (!(flags & ImGuiColorEditFlags_NoTooltip) && hovered) ColorTooltip(desc_id, &col.x, flags & (ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf)); if (pressed) MarkItemEdited(id); return pressed; } void ImGui::SetColorEditOptions(ImGuiColorEditFlags flags) { ImGuiContext& g = *GImGui; if ((flags & ImGuiColorEditFlags__InputsMask) == 0) flags |= ImGuiColorEditFlags__OptionsDefault & ImGuiColorEditFlags__InputsMask; if ((flags & ImGuiColorEditFlags__DataTypeMask) == 0) flags |= ImGuiColorEditFlags__OptionsDefault & ImGuiColorEditFlags__DataTypeMask; if ((flags & ImGuiColorEditFlags__PickerMask) == 0) flags |= ImGuiColorEditFlags__OptionsDefault & ImGuiColorEditFlags__PickerMask; IM_ASSERT(ImIsPowerOfTwo((int)(flags & ImGuiColorEditFlags__InputsMask))); // Check only 1 option is selected IM_ASSERT(ImIsPowerOfTwo((int)(flags & ImGuiColorEditFlags__DataTypeMask))); // Check only 1 option is selected IM_ASSERT(ImIsPowerOfTwo((int)(flags & ImGuiColorEditFlags__PickerMask))); // Check only 1 option is selected g.ColorEditOptions = flags; } // Note: only access 3 floats if ImGuiColorEditFlags_NoAlpha flag is set. void ImGui::ColorTooltip(const char* text, const float* col, ImGuiColorEditFlags flags) { ImGuiContext& g = *GImGui; int cr = IM_F32_TO_INT8_SAT(col[0]), cg = IM_F32_TO_INT8_SAT(col[1]), cb = IM_F32_TO_INT8_SAT(col[2]), ca = (flags & ImGuiColorEditFlags_NoAlpha) ? 255 : IM_F32_TO_INT8_SAT(col[3]); BeginTooltipEx(0, true); const char* text_end = text ? FindRenderedTextEnd(text, NULL) : text; if (text_end > text) { TextUnformatted(text, text_end); Separator(); } ImVec2 sz(g.FontSize * 3 + g.Style.FramePadding.y * 2, g.FontSize * 3 + g.Style.FramePadding.y * 2); ColorButton("##preview", ImVec4(col[0], col[1], col[2], col[3]), (flags & (ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_AlphaPreview | ImGuiColorEditFlags_AlphaPreviewHalf)) | ImGuiColorEditFlags_NoTooltip, sz); SameLine(); if (flags & ImGuiColorEditFlags_NoAlpha) Text("#%02X%02X%02X\nR: %d, G: %d, B: %d\n(%.3f, %.3f, %.3f)", cr, cg, cb, cr, cg, cb, col[0], col[1], col[2]); else Text("#%02X%02X%02X%02X\nR:%d, G:%d, B:%d, A:%d\n(%.3f, %.3f, %.3f, %.3f)", cr, cg, cb, ca, cr, cg, cb, ca, col[0], col[1], col[2], col[3]); EndTooltip(); } void ImGui::ColorEditOptionsPopup(const float* col, ImGuiColorEditFlags flags) { bool allow_opt_inputs = !(flags & ImGuiColorEditFlags__InputsMask); bool allow_opt_datatype = !(flags & ImGuiColorEditFlags__DataTypeMask); if ((!allow_opt_inputs && !allow_opt_datatype) || !BeginPopup("context")) return; ImGuiContext& g = *GImGui; ImGuiColorEditFlags opts = g.ColorEditOptions; if (allow_opt_inputs) { if (RadioButton("RGB", (opts & ImGuiColorEditFlags_RGB) != 0)) opts = (opts & ~ImGuiColorEditFlags__InputsMask) | ImGuiColorEditFlags_RGB; if (RadioButton("HSV", (opts & ImGuiColorEditFlags_HSV) != 0)) opts = (opts & ~ImGuiColorEditFlags__InputsMask) | ImGuiColorEditFlags_HSV; if (RadioButton("HEX", (opts & ImGuiColorEditFlags_HEX) != 0)) opts = (opts & ~ImGuiColorEditFlags__InputsMask) | ImGuiColorEditFlags_HEX; } if (allow_opt_datatype) { if (allow_opt_inputs) Separator(); if (RadioButton("0..255", (opts & ImGuiColorEditFlags_Uint8) != 0)) opts = (opts & ~ImGuiColorEditFlags__DataTypeMask) | ImGuiColorEditFlags_Uint8; if (RadioButton("0.00..1.00", (opts & ImGuiColorEditFlags_Float) != 0)) opts = (opts & ~ImGuiColorEditFlags__DataTypeMask) | ImGuiColorEditFlags_Float; } if (allow_opt_inputs || allow_opt_datatype) Separator(); if (Button("Copy as..", ImVec2(-1,0))) OpenPopup("Copy"); if (BeginPopup("Copy")) { int cr = IM_F32_TO_INT8_SAT(col[0]), cg = IM_F32_TO_INT8_SAT(col[1]), cb = IM_F32_TO_INT8_SAT(col[2]), ca = (flags & ImGuiColorEditFlags_NoAlpha) ? 255 : IM_F32_TO_INT8_SAT(col[3]); char buf[64]; ImFormatString(buf, IM_ARRAYSIZE(buf), "(%.3ff, %.3ff, %.3ff, %.3ff)", col[0], col[1], col[2], (flags & ImGuiColorEditFlags_NoAlpha) ? 1.0f : col[3]); if (Selectable(buf)) SetClipboardText(buf); ImFormatString(buf, IM_ARRAYSIZE(buf), "(%d,%d,%d,%d)", cr, cg, cb, ca); if (Selectable(buf)) SetClipboardText(buf); if (flags & ImGuiColorEditFlags_NoAlpha) ImFormatString(buf, IM_ARRAYSIZE(buf), "0x%02X%02X%02X", cr, cg, cb); else ImFormatString(buf, IM_ARRAYSIZE(buf), "0x%02X%02X%02X%02X", cr, cg, cb, ca); if (Selectable(buf)) SetClipboardText(buf); EndPopup(); } g.ColorEditOptions = opts; EndPopup(); } void ImGui::ColorPickerOptionsPopup(const float* ref_col, ImGuiColorEditFlags flags) { bool allow_opt_picker = !(flags & ImGuiColorEditFlags__PickerMask); bool allow_opt_alpha_bar = !(flags & ImGuiColorEditFlags_NoAlpha) && !(flags & ImGuiColorEditFlags_AlphaBar); if ((!allow_opt_picker && !allow_opt_alpha_bar) || !ImGui::BeginPopup("context")) return; ImGuiContext& g = *GImGui; if (allow_opt_picker) { ImVec2 picker_size(g.FontSize * 8, ImMax(g.FontSize * 8 - (ImGui::GetFrameHeight() + g.Style.ItemInnerSpacing.x), 1.0f)); // FIXME: Picker size copied from main picker function ImGui::PushItemWidth(picker_size.x); for (int picker_type = 0; picker_type < 2; picker_type++) { // Draw small/thumbnail version of each picker type (over an invisible button for selection) if (picker_type > 0) ImGui::Separator(); ImGui::PushID(picker_type); ImGuiColorEditFlags picker_flags = ImGuiColorEditFlags_NoInputs|ImGuiColorEditFlags_NoOptions|ImGuiColorEditFlags_NoLabel|ImGuiColorEditFlags_NoSidePreview|(flags & ImGuiColorEditFlags_NoAlpha); if (picker_type == 0) picker_flags |= ImGuiColorEditFlags_PickerHueBar; if (picker_type == 1) picker_flags |= ImGuiColorEditFlags_PickerHueWheel; ImVec2 backup_pos = ImGui::GetCursorScreenPos(); if (ImGui::Selectable("##selectable", false, 0, picker_size)) // By default, Selectable() is closing popup g.ColorEditOptions = (g.ColorEditOptions & ~ImGuiColorEditFlags__PickerMask) | (picker_flags & ImGuiColorEditFlags__PickerMask); ImGui::SetCursorScreenPos(backup_pos); ImVec4 dummy_ref_col; memcpy(&dummy_ref_col.x, ref_col, sizeof(float) * (picker_flags & ImGuiColorEditFlags_NoAlpha ? 3 : 4)); ImGui::ColorPicker4("##dummypicker", &dummy_ref_col.x, picker_flags); ImGui::PopID(); } ImGui::PopItemWidth(); } if (allow_opt_alpha_bar) { if (allow_opt_picker) ImGui::Separator(); ImGui::CheckboxFlags("Alpha Bar", (unsigned int*)&g.ColorEditOptions, ImGuiColorEditFlags_AlphaBar); } ImGui::EndPopup(); } //------------------------------------------------------------------------- // WIDGETS: Trees // - TreeNode() // - TreeNodeV() // - TreeNodeEx() // - TreeNodeExV() // - TreeNodeBehavior() [Internal] // - TreePush() // - TreePop() // - TreeAdvanceToLabelPos() // - GetTreeNodeToLabelSpacing() // - SetNextTreeNodeOpen() // - CollapsingHeader() //------------------------------------------------------------------------- bool ImGui::TreeNode(const char* str_id, const char* fmt, ...) { va_list args; va_start(args, fmt); bool is_open = TreeNodeExV(str_id, 0, fmt, args); va_end(args); return is_open; } bool ImGui::TreeNode(const void* ptr_id, const char* fmt, ...) { va_list args; va_start(args, fmt); bool is_open = TreeNodeExV(ptr_id, 0, fmt, args); va_end(args); return is_open; } bool ImGui::TreeNode(const char* label) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; return TreeNodeBehavior(window->GetID(label), 0, label, NULL); } bool ImGui::TreeNodeV(const char* str_id, const char* fmt, va_list args) { return TreeNodeExV(str_id, 0, fmt, args); } bool ImGui::TreeNodeV(const void* ptr_id, const char* fmt, va_list args) { return TreeNodeExV(ptr_id, 0, fmt, args); } bool ImGui::TreeNodeEx(const char* label, ImGuiTreeNodeFlags flags) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; return TreeNodeBehavior(window->GetID(label), flags, label, NULL); } bool ImGui::TreeNodeEx(const char* str_id, ImGuiTreeNodeFlags flags, const char* fmt, ...) { va_list args; va_start(args, fmt); bool is_open = TreeNodeExV(str_id, flags, fmt, args); va_end(args); return is_open; } bool ImGui::TreeNodeEx(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, ...) { va_list args; va_start(args, fmt); bool is_open = TreeNodeExV(ptr_id, flags, fmt, args); va_end(args); return is_open; } bool ImGui::TreeNodeExV(const char* str_id, ImGuiTreeNodeFlags flags, const char* fmt, va_list args) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; const char* label_end = g.TempBuffer + ImFormatStringV(g.TempBuffer, IM_ARRAYSIZE(g.TempBuffer), fmt, args); return TreeNodeBehavior(window->GetID(str_id), flags, g.TempBuffer, label_end); } bool ImGui::TreeNodeExV(const void* ptr_id, ImGuiTreeNodeFlags flags, const char* fmt, va_list args) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; const char* label_end = g.TempBuffer + ImFormatStringV(g.TempBuffer, IM_ARRAYSIZE(g.TempBuffer), fmt, args); return TreeNodeBehavior(window->GetID(ptr_id), flags, g.TempBuffer, label_end); } bool ImGui::TreeNodeBehaviorIsOpen(ImGuiID id, ImGuiTreeNodeFlags flags) { if (flags & ImGuiTreeNodeFlags_Leaf) return true; // We only write to the tree storage if the user clicks (or explicitly use SetNextTreeNode*** functions) ImGuiContext& g = *GImGui; ImGuiWindow* window = g.CurrentWindow; ImGuiStorage* storage = window->DC.StateStorage; bool is_open; if (g.NextTreeNodeOpenCond != 0) { if (g.NextTreeNodeOpenCond & ImGuiCond_Always) { is_open = g.NextTreeNodeOpenVal; storage->SetInt(id, is_open); } else { // We treat ImGuiCond_Once and ImGuiCond_FirstUseEver the same because tree node state are not saved persistently. const int stored_value = storage->GetInt(id, -1); if (stored_value == -1) { is_open = g.NextTreeNodeOpenVal; storage->SetInt(id, is_open); } else { is_open = stored_value != 0; } } g.NextTreeNodeOpenCond = 0; } else { is_open = storage->GetInt(id, (flags & ImGuiTreeNodeFlags_DefaultOpen) ? 1 : 0) != 0; } // When logging is enabled, we automatically expand tree nodes (but *NOT* collapsing headers.. seems like sensible behavior). // NB- If we are above max depth we still allow manually opened nodes to be logged. if (g.LogEnabled && !(flags & ImGuiTreeNodeFlags_NoAutoOpenOnLog) && window->DC.TreeDepth < g.LogAutoExpandMaxDepth) is_open = true; return is_open; } bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* label, const char* label_end) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; const bool display_frame = (flags & ImGuiTreeNodeFlags_Framed) != 0; const ImVec2 padding = (display_frame || (flags & ImGuiTreeNodeFlags_FramePadding)) ? style.FramePadding : ImVec2(style.FramePadding.x, 0.0f); if (!label_end) label_end = FindRenderedTextEnd(label); const ImVec2 label_size = CalcTextSize(label, label_end, false); // We vertically grow up to current line height up the typical widget height. const float text_base_offset_y = ImMax(padding.y, window->DC.CurrentLineTextBaseOffset); // Latch before ItemSize changes it const float frame_height = ImMax(ImMin(window->DC.CurrentLineSize.y, g.FontSize + style.FramePadding.y*2), label_size.y + padding.y*2); ImRect frame_bb = ImRect(window->DC.CursorPos, ImVec2(window->Pos.x + GetContentRegionMax().x, window->DC.CursorPos.y + frame_height)); if (display_frame) { // Framed header expand a little outside the default padding frame_bb.Min.x -= (float)(int)(window->WindowPadding.x*0.5f) - 1; frame_bb.Max.x += (float)(int)(window->WindowPadding.x*0.5f) - 1; } const float text_offset_x = (g.FontSize + (display_frame ? padding.x*3 : padding.x*2)); // Collapser arrow width + Spacing const float text_width = g.FontSize + (label_size.x > 0.0f ? label_size.x + padding.x*2 : 0.0f); // Include collapser ItemSize(ImVec2(text_width, frame_height), text_base_offset_y); // For regular tree nodes, we arbitrary allow to click past 2 worth of ItemSpacing // (Ideally we'd want to add a flag for the user to specify if we want the hit test to be done up to the right side of the content or not) const ImRect interact_bb = display_frame ? frame_bb : ImRect(frame_bb.Min.x, frame_bb.Min.y, frame_bb.Min.x + text_width + style.ItemSpacing.x*2, frame_bb.Max.y); bool is_open = TreeNodeBehaviorIsOpen(id, flags); // Store a flag for the current depth to tell if we will allow closing this node when navigating one of its child. // For this purpose we essentially compare if g.NavIdIsAlive went from 0 to 1 between TreeNode() and TreePop(). // This is currently only support 32 level deep and we are fine with (1 << Depth) overflowing into a zero. if (is_open && !g.NavIdIsAlive && (flags & ImGuiTreeNodeFlags_NavLeftJumpsBackHere) && !(flags & ImGuiTreeNodeFlags_NoTreePushOnOpen)) window->DC.TreeDepthMayJumpToParentOnPop |= (1 << window->DC.TreeDepth); bool item_add = ItemAdd(interact_bb, id); window->DC.LastItemStatusFlags |= ImGuiItemStatusFlags_HasDisplayRect; window->DC.LastItemDisplayRect = frame_bb; if (!item_add) { if (is_open && !(flags & ImGuiTreeNodeFlags_NoTreePushOnOpen)) TreePushRawID(id); return is_open; } // Flags that affects opening behavior: // - 0(default) ..................... single-click anywhere to open // - OpenOnDoubleClick .............. double-click anywhere to open // - OpenOnArrow .................... single-click on arrow to open // - OpenOnDoubleClick|OpenOnArrow .. single-click on arrow or double-click anywhere to open ImGuiButtonFlags button_flags = ImGuiButtonFlags_NoKeyModifiers | ((flags & ImGuiTreeNodeFlags_AllowItemOverlap) ? ImGuiButtonFlags_AllowItemOverlap : 0); if (!(flags & ImGuiTreeNodeFlags_Leaf)) button_flags |= ImGuiButtonFlags_PressedOnDragDropHold; if (flags & ImGuiTreeNodeFlags_OpenOnDoubleClick) button_flags |= ImGuiButtonFlags_PressedOnDoubleClick | ((flags & ImGuiTreeNodeFlags_OpenOnArrow) ? ImGuiButtonFlags_PressedOnClickRelease : 0); bool hovered, held, pressed = ButtonBehavior(interact_bb, id, &hovered, &held, button_flags); if (!(flags & ImGuiTreeNodeFlags_Leaf)) { bool toggled = false; if (pressed) { toggled = !(flags & (ImGuiTreeNodeFlags_OpenOnArrow | ImGuiTreeNodeFlags_OpenOnDoubleClick)) || (g.NavActivateId == id); if (flags & ImGuiTreeNodeFlags_OpenOnArrow) toggled |= IsMouseHoveringRect(interact_bb.Min, ImVec2(interact_bb.Min.x + text_offset_x, interact_bb.Max.y)) && (!g.NavDisableMouseHover); if (flags & ImGuiTreeNodeFlags_OpenOnDoubleClick) toggled |= g.IO.MouseDoubleClicked[0]; if (g.DragDropActive && is_open) // When using Drag and Drop "hold to open" we keep the node highlighted after opening, but never close it again. toggled = false; } if (g.NavId == id && g.NavMoveRequest && g.NavMoveDir == ImGuiDir_Left && is_open) { toggled = true; NavMoveRequestCancel(); } if (g.NavId == id && g.NavMoveRequest && g.NavMoveDir == ImGuiDir_Right && !is_open) // If there's something upcoming on the line we may want to give it the priority? { toggled = true; NavMoveRequestCancel(); } if (toggled) { is_open = !is_open; window->DC.StateStorage->SetInt(id, is_open); } } if (flags & ImGuiTreeNodeFlags_AllowItemOverlap) SetItemAllowOverlap(); // Render const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header); const ImVec2 text_pos = frame_bb.Min + ImVec2(text_offset_x, text_base_offset_y); if (display_frame) { // Framed type RenderFrame(frame_bb.Min, frame_bb.Max, col, true, style.FrameRounding); RenderNavHighlight(frame_bb, id, ImGuiNavHighlightFlags_TypeThin); RenderArrow(frame_bb.Min + ImVec2(padding.x, text_base_offset_y), is_open ? ImGuiDir_Down : ImGuiDir_Right, 1.0f); if (g.LogEnabled) { // NB: '##' is normally used to hide text (as a library-wide feature), so we need to specify the text range to make sure the ## aren't stripped out here. const char log_prefix[] = "\n##"; const char log_suffix[] = "##"; LogRenderedText(&text_pos, log_prefix, log_prefix+3); RenderTextClipped(text_pos, frame_bb.Max, label, label_end, &label_size); LogRenderedText(&text_pos, log_suffix+1, log_suffix+3); } else { RenderTextClipped(text_pos, frame_bb.Max, label, label_end, &label_size); } } else { // Unframed typed for tree nodes if (hovered || (flags & ImGuiTreeNodeFlags_Selected)) { RenderFrame(frame_bb.Min, frame_bb.Max, col, false); RenderNavHighlight(frame_bb, id, ImGuiNavHighlightFlags_TypeThin); } if (flags & ImGuiTreeNodeFlags_Bullet) RenderBullet(frame_bb.Min + ImVec2(text_offset_x * 0.5f, g.FontSize*0.50f + text_base_offset_y)); else if (!(flags & ImGuiTreeNodeFlags_Leaf)) RenderArrow(frame_bb.Min + ImVec2(padding.x, g.FontSize*0.15f + text_base_offset_y), is_open ? ImGuiDir_Down : ImGuiDir_Right, 0.70f); if (g.LogEnabled) LogRenderedText(&text_pos, ">"); RenderText(text_pos, label, label_end, false); } if (is_open && !(flags & ImGuiTreeNodeFlags_NoTreePushOnOpen)) TreePushRawID(id); return is_open; } void ImGui::TreePush(const char* str_id) { ImGuiWindow* window = GetCurrentWindow(); Indent(); window->DC.TreeDepth++; PushID(str_id ? str_id : "#TreePush"); } void ImGui::TreePush(const void* ptr_id) { ImGuiWindow* window = GetCurrentWindow(); Indent(); window->DC.TreeDepth++; PushID(ptr_id ? ptr_id : (const void*)"#TreePush"); } void ImGui::TreePushRawID(ImGuiID id) { ImGuiWindow* window = GetCurrentWindow(); Indent(); window->DC.TreeDepth++; window->IDStack.push_back(id); } void ImGui::TreePop() { ImGuiContext& g = *GImGui; ImGuiWindow* window = g.CurrentWindow; Unindent(); window->DC.TreeDepth--; if (g.NavMoveDir == ImGuiDir_Left && g.NavWindow == window && NavMoveRequestButNoResultYet()) if (g.NavIdIsAlive && (window->DC.TreeDepthMayJumpToParentOnPop & (1 << window->DC.TreeDepth))) { SetNavID(window->IDStack.back(), g.NavLayer); NavMoveRequestCancel(); } window->DC.TreeDepthMayJumpToParentOnPop &= (1 << window->DC.TreeDepth) - 1; IM_ASSERT(window->IDStack.Size > 1); // There should always be 1 element in the IDStack (pushed during window creation). If this triggers you called TreePop/PopID too much. PopID(); } void ImGui::TreeAdvanceToLabelPos() { ImGuiContext& g = *GImGui; g.CurrentWindow->DC.CursorPos.x += GetTreeNodeToLabelSpacing(); } // Horizontal distance preceding label when using TreeNode() or Bullet() float ImGui::GetTreeNodeToLabelSpacing() { ImGuiContext& g = *GImGui; return g.FontSize + (g.Style.FramePadding.x * 2.0f); } void ImGui::SetNextTreeNodeOpen(bool is_open, ImGuiCond cond) { ImGuiContext& g = *GImGui; if (g.CurrentWindow->SkipItems) return; g.NextTreeNodeOpenVal = is_open; g.NextTreeNodeOpenCond = cond ? cond : ImGuiCond_Always; } // CollapsingHeader returns true when opened but do not indent nor push into the ID stack (because of the ImGuiTreeNodeFlags_NoTreePushOnOpen flag). // This is basically the same as calling TreeNodeEx(label, ImGuiTreeNodeFlags_CollapsingHeader). You can remove the _NoTreePushOnOpen flag if you want behavior closer to normal TreeNode(). bool ImGui::CollapsingHeader(const char* label, ImGuiTreeNodeFlags flags) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; return TreeNodeBehavior(window->GetID(label), flags | ImGuiTreeNodeFlags_CollapsingHeader, label); } bool ImGui::CollapsingHeader(const char* label, bool* p_open, ImGuiTreeNodeFlags flags) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; if (p_open && !*p_open) return false; ImGuiID id = window->GetID(label); bool is_open = TreeNodeBehavior(id, flags | ImGuiTreeNodeFlags_CollapsingHeader | (p_open ? ImGuiTreeNodeFlags_AllowItemOverlap : 0), label); if (p_open) { // Create a small overlapping close button // FIXME: We can evolve this into user accessible helpers to add extra buttons on title bars, headers, etc. ImGuiContext& g = *GImGui; ImGuiItemHoveredDataBackup last_item_backup; float button_radius = g.FontSize * 0.5f; ImVec2 button_center = ImVec2(ImMin(window->DC.LastItemRect.Max.x, window->ClipRect.Max.x) - g.Style.FramePadding.x - button_radius, window->DC.LastItemRect.GetCenter().y); if (CloseButton(window->GetID((void*)(intptr_t)(id+1)), button_center, button_radius)) *p_open = false; last_item_backup.Restore(); } return is_open; } //------------------------------------------------------------------------- // WIDGETS: Selectables // - Selectable() //------------------------------------------------------------------------- // Tip: pass an empty label (e.g. "##dummy") then you can use the space to draw other text or image. // But you need to make sure the ID is unique, e.g. enclose calls in PushID/PopID or use ##unique_id. bool ImGui::Selectable(const char* label, bool selected, ImGuiSelectableFlags flags, const ImVec2& size_arg) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; if ((flags & ImGuiSelectableFlags_SpanAllColumns) && window->DC.ColumnsSet) // FIXME-OPT: Avoid if vertically clipped. PopClipRect(); ImGuiID id = window->GetID(label); ImVec2 label_size = CalcTextSize(label, NULL, true); ImVec2 size(size_arg.x != 0.0f ? size_arg.x : label_size.x, size_arg.y != 0.0f ? size_arg.y : label_size.y); ImVec2 pos = window->DC.CursorPos; pos.y += window->DC.CurrentLineTextBaseOffset; ImRect bb_inner(pos, pos + size); ItemSize(bb_inner); // Fill horizontal space. ImVec2 window_padding = window->WindowPadding; float max_x = (flags & ImGuiSelectableFlags_SpanAllColumns) ? GetWindowContentRegionMax().x : GetContentRegionMax().x; float w_draw = ImMax(label_size.x, window->Pos.x + max_x - window_padding.x - window->DC.CursorPos.x); ImVec2 size_draw((size_arg.x != 0 && !(flags & ImGuiSelectableFlags_DrawFillAvailWidth)) ? size_arg.x : w_draw, size_arg.y != 0.0f ? size_arg.y : size.y); ImRect bb(pos, pos + size_draw); if (size_arg.x == 0.0f || (flags & ImGuiSelectableFlags_DrawFillAvailWidth)) bb.Max.x += window_padding.x; // Selectables are tightly packed together, we extend the box to cover spacing between selectable. float spacing_L = (float)(int)(style.ItemSpacing.x * 0.5f); float spacing_U = (float)(int)(style.ItemSpacing.y * 0.5f); float spacing_R = style.ItemSpacing.x - spacing_L; float spacing_D = style.ItemSpacing.y - spacing_U; bb.Min.x -= spacing_L; bb.Min.y -= spacing_U; bb.Max.x += spacing_R; bb.Max.y += spacing_D; if (!ItemAdd(bb, (flags & ImGuiSelectableFlags_Disabled) ? 0 : id)) { if ((flags & ImGuiSelectableFlags_SpanAllColumns) && window->DC.ColumnsSet) PushColumnClipRect(); return false; } // We use NoHoldingActiveID on menus so user can click and _hold_ on a menu then drag to browse child entries ImGuiButtonFlags button_flags = 0; if (flags & ImGuiSelectableFlags_NoHoldingActiveID) button_flags |= ImGuiButtonFlags_NoHoldingActiveID; if (flags & ImGuiSelectableFlags_PressedOnClick) button_flags |= ImGuiButtonFlags_PressedOnClick; if (flags & ImGuiSelectableFlags_PressedOnRelease) button_flags |= ImGuiButtonFlags_PressedOnRelease; if (flags & ImGuiSelectableFlags_Disabled) button_flags |= ImGuiButtonFlags_Disabled; if (flags & ImGuiSelectableFlags_AllowDoubleClick) button_flags |= ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnDoubleClick; bool hovered, held; bool pressed = ButtonBehavior(bb, id, &hovered, &held, button_flags); if (flags & ImGuiSelectableFlags_Disabled) selected = false; // Hovering selectable with mouse updates NavId accordingly so navigation can be resumed with gamepad/keyboard (this doesn't happen on most widgets) if (pressed || hovered) if (!g.NavDisableMouseHover && g.NavWindow == window && g.NavLayer == window->DC.NavLayerCurrent) { g.NavDisableHighlight = true; SetNavID(id, window->DC.NavLayerCurrent); } if (pressed) MarkItemEdited(id); // Render if (hovered || selected) { const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header); RenderFrame(bb.Min, bb.Max, col, false, 0.0f); RenderNavHighlight(bb, id, ImGuiNavHighlightFlags_TypeThin | ImGuiNavHighlightFlags_NoRounding); } if ((flags & ImGuiSelectableFlags_SpanAllColumns) && window->DC.ColumnsSet) { PushColumnClipRect(); bb.Max.x -= (GetContentRegionMax().x - max_x); } if (flags & ImGuiSelectableFlags_Disabled) PushStyleColor(ImGuiCol_Text, g.Style.Colors[ImGuiCol_TextDisabled]); RenderTextClipped(bb_inner.Min, bb.Max, label, NULL, &label_size, ImVec2(0.0f,0.0f)); if (flags & ImGuiSelectableFlags_Disabled) PopStyleColor(); // Automatically close popups if (pressed && (window->Flags & ImGuiWindowFlags_Popup) && !(flags & ImGuiSelectableFlags_DontClosePopups) && !(window->DC.ItemFlags & ImGuiItemFlags_SelectableDontClosePopup)) CloseCurrentPopup(); return pressed; } bool ImGui::Selectable(const char* label, bool* p_selected, ImGuiSelectableFlags flags, const ImVec2& size_arg) { if (Selectable(label, *p_selected, flags, size_arg)) { *p_selected = !*p_selected; return true; } return false; } //------------------------------------------------------------------------- // WIDGETS: List Box // - ListBox() // - ListBoxHeader() // - ListBoxFooter() //------------------------------------------------------------------------- // FIXME: Rename to BeginListBox() // Helper to calculate the size of a listbox and display a label on the right. // Tip: To have a list filling the entire window width, PushItemWidth(-1) and pass an empty label "##empty" bool ImGui::ListBoxHeader(const char* label, const ImVec2& size_arg) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; const ImGuiStyle& style = GetStyle(); const ImGuiID id = GetID(label); const ImVec2 label_size = CalcTextSize(label, NULL, true); // Size default to hold ~7 items. Fractional number of items helps seeing that we can scroll down/up without looking at scrollbar. ImVec2 size = CalcItemSize(size_arg, CalcItemWidth(), GetTextLineHeightWithSpacing() * 7.4f + style.ItemSpacing.y); ImVec2 frame_size = ImVec2(size.x, ImMax(size.y, label_size.y)); ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size); ImRect bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f)); window->DC.LastItemRect = bb; // Forward storage for ListBoxFooter.. dodgy. BeginGroup(); if (label_size.x > 0) RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label); BeginChildFrame(id, frame_bb.GetSize()); return true; } // FIXME: Rename to BeginListBox() bool ImGui::ListBoxHeader(const char* label, int items_count, int height_in_items) { // Size default to hold ~7 items. Fractional number of items helps seeing that we can scroll down/up without looking at scrollbar. // We don't add +0.40f if items_count <= height_in_items. It is slightly dodgy, because it means a dynamic list of items will make the widget resize occasionally when it crosses that size. // I am expecting that someone will come and complain about this behavior in a remote future, then we can advise on a better solution. if (height_in_items < 0) height_in_items = ImMin(items_count, 7); float height_in_items_f = height_in_items < items_count ? (height_in_items + 0.40f) : (height_in_items + 0.00f); // We include ItemSpacing.y so that a list sized for the exact number of items doesn't make a scrollbar appears. We could also enforce that by passing a flag to BeginChild(). ImVec2 size; size.x = 0.0f; size.y = GetTextLineHeightWithSpacing() * height_in_items_f + GetStyle().ItemSpacing.y; return ListBoxHeader(label, size); } // FIXME: Rename to EndListBox() void ImGui::ListBoxFooter() { ImGuiWindow* parent_window = GetCurrentWindow()->ParentWindow; const ImRect bb = parent_window->DC.LastItemRect; const ImGuiStyle& style = GetStyle(); EndChildFrame(); // Redeclare item size so that it includes the label (we have stored the full size in LastItemRect) // We call SameLine() to restore DC.CurrentLine* data SameLine(); parent_window->DC.CursorPos = bb.Min; ItemSize(bb, style.FramePadding.y); EndGroup(); } bool ImGui::ListBox(const char* label, int* current_item, const char* const items[], int items_count, int height_items) { const bool value_changed = ListBox(label, current_item, Items_ArrayGetter, (void*)items, items_count, height_items); return value_changed; } bool ImGui::ListBox(const char* label, int* current_item, bool (*items_getter)(void*, int, const char**), void* data, int items_count, int height_in_items) { if (!ListBoxHeader(label, items_count, height_in_items)) return false; // Assume all items have even height (= 1 line of text). If you need items of different or variable sizes you can create a custom version of ListBox() in your code without using the clipper. ImGuiContext& g = *GImGui; bool value_changed = false; ImGuiListClipper clipper(items_count, GetTextLineHeightWithSpacing()); // We know exactly our line height here so we pass it as a minor optimization, but generally you don't need to. while (clipper.Step()) for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++) { const bool item_selected = (i == *current_item); const char* item_text; if (!items_getter(data, i, &item_text)) item_text = "*Unknown item*"; PushID(i); if (Selectable(item_text, item_selected)) { *current_item = i; value_changed = true; } if (item_selected) SetItemDefaultFocus(); PopID(); } ListBoxFooter(); if (value_changed) MarkItemEdited(g.CurrentWindow->DC.LastItemId); return value_changed; } //------------------------------------------------------------------------- // WIDGETS: Data Plotting // - PlotEx() [Internal] // - PlotLines() // - PlotHistogram() //------------------------------------------------------------------------- void ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; const ImVec2 label_size = CalcTextSize(label, NULL, true); if (graph_size.x == 0.0f) graph_size.x = CalcItemWidth(); if (graph_size.y == 0.0f) graph_size.y = label_size.y + (style.FramePadding.y * 2); const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(graph_size.x, graph_size.y)); const ImRect inner_bb(frame_bb.Min + style.FramePadding, frame_bb.Max - style.FramePadding); const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0)); ItemSize(total_bb, style.FramePadding.y); if (!ItemAdd(total_bb, 0, &frame_bb)) return; const bool hovered = ItemHoverable(inner_bb, 0); // Determine scale from values if not specified if (scale_min == FLT_MAX || scale_max == FLT_MAX) { float v_min = FLT_MAX; float v_max = -FLT_MAX; for (int i = 0; i < values_count; i++) { const float v = values_getter(data, i); v_min = ImMin(v_min, v); v_max = ImMax(v_max, v); } if (scale_min == FLT_MAX) scale_min = v_min; if (scale_max == FLT_MAX) scale_max = v_max; } RenderFrame(frame_bb.Min, frame_bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding); if (values_count > 0) { int res_w = ImMin((int)graph_size.x, values_count) + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0); int item_count = values_count + ((plot_type == ImGuiPlotType_Lines) ? -1 : 0); // Tooltip on hover int v_hovered = -1; if (hovered) { const float t = ImClamp((g.IO.MousePos.x - inner_bb.Min.x) / (inner_bb.Max.x - inner_bb.Min.x), 0.0f, 0.9999f); const int v_idx = (int)(t * item_count); IM_ASSERT(v_idx >= 0 && v_idx < values_count); const float v0 = values_getter(data, (v_idx + values_offset) % values_count); const float v1 = values_getter(data, (v_idx + 1 + values_offset) % values_count); if (plot_type == ImGuiPlotType_Lines) SetTooltip("%d: %8.4g\n%d: %8.4g", v_idx, v0, v_idx+1, v1); else if (plot_type == ImGuiPlotType_Histogram) SetTooltip("%d: %8.4g", v_idx, v0); v_hovered = v_idx; } const float t_step = 1.0f / (float)res_w; const float inv_scale = (scale_min == scale_max) ? 0.0f : (1.0f / (scale_max - scale_min)); float v0 = values_getter(data, (0 + values_offset) % values_count); float t0 = 0.0f; ImVec2 tp0 = ImVec2( t0, 1.0f - ImSaturate((v0 - scale_min) * inv_scale) ); // Point in the normalized space of our target rectangle float histogram_zero_line_t = (scale_min * scale_max < 0.0f) ? (-scale_min * inv_scale) : (scale_min < 0.0f ? 0.0f : 1.0f); // Where does the zero line stands const ImU32 col_base = GetColorU32((plot_type == ImGuiPlotType_Lines) ? ImGuiCol_PlotLines : ImGuiCol_PlotHistogram); const ImU32 col_hovered = GetColorU32((plot_type == ImGuiPlotType_Lines) ? ImGuiCol_PlotLinesHovered : ImGuiCol_PlotHistogramHovered); for (int n = 0; n < res_w; n++) { const float t1 = t0 + t_step; const int v1_idx = (int)(t0 * item_count + 0.5f); IM_ASSERT(v1_idx >= 0 && v1_idx < values_count); const float v1 = values_getter(data, (v1_idx + values_offset + 1) % values_count); const ImVec2 tp1 = ImVec2( t1, 1.0f - ImSaturate((v1 - scale_min) * inv_scale) ); // NB: Draw calls are merged together by the DrawList system. Still, we should render our batch are lower level to save a bit of CPU. ImVec2 pos0 = ImLerp(inner_bb.Min, inner_bb.Max, tp0); ImVec2 pos1 = ImLerp(inner_bb.Min, inner_bb.Max, (plot_type == ImGuiPlotType_Lines) ? tp1 : ImVec2(tp1.x, histogram_zero_line_t)); if (plot_type == ImGuiPlotType_Lines) { window->DrawList->AddLine(pos0, pos1, v_hovered == v1_idx ? col_hovered : col_base); } else if (plot_type == ImGuiPlotType_Histogram) { if (pos1.x >= pos0.x + 2.0f) pos1.x -= 1.0f; window->DrawList->AddRectFilled(pos0, pos1, v_hovered == v1_idx ? col_hovered : col_base); } t0 = t1; tp0 = tp1; } } // Text overlay if (overlay_text) RenderTextClipped(ImVec2(frame_bb.Min.x, frame_bb.Min.y + style.FramePadding.y), frame_bb.Max, overlay_text, NULL, NULL, ImVec2(0.5f,0.0f)); if (label_size.x > 0.0f) RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, inner_bb.Min.y), label); } struct ImGuiPlotArrayGetterData { const float* Values; int Stride; ImGuiPlotArrayGetterData(const float* values, int stride) { Values = values; Stride = stride; } }; static float Plot_ArrayGetter(void* data, int idx) { ImGuiPlotArrayGetterData* plot_data = (ImGuiPlotArrayGetterData*)data; const float v = *(const float*)(const void*)((const unsigned char*)plot_data->Values + (size_t)idx * plot_data->Stride); return v; } void ImGui::PlotLines(const char* label, const float* values, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size, int stride) { ImGuiPlotArrayGetterData data(values, stride); PlotEx(ImGuiPlotType_Lines, label, &Plot_ArrayGetter, (void*)&data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size); } void ImGui::PlotLines(const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size) { PlotEx(ImGuiPlotType_Lines, label, values_getter, data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size); } void ImGui::PlotHistogram(const char* label, const float* values, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size, int stride) { ImGuiPlotArrayGetterData data(values, stride); PlotEx(ImGuiPlotType_Histogram, label, &Plot_ArrayGetter, (void*)&data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size); } void ImGui::PlotHistogram(const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size) { PlotEx(ImGuiPlotType_Histogram, label, values_getter, data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size); } //------------------------------------------------------------------------- // WIDGETS: Value() helpers // - Value() //------------------------------------------------------------------------- void ImGui::Value(const char* prefix, bool b) { Text("%s: %s", prefix, (b ? "true" : "false")); } void ImGui::Value(const char* prefix, int v) { Text("%s: %d", prefix, v); } void ImGui::Value(const char* prefix, unsigned int v) { Text("%s: %d", prefix, v); } void ImGui::Value(const char* prefix, float v, const char* float_format) { if (float_format) { char fmt[64]; ImFormatString(fmt, IM_ARRAYSIZE(fmt), "%%s: %s", float_format); Text(fmt, prefix, v); } else { Text("%s: %.3f", prefix, v); } } //------------------------------------------------------------------------- // WIDGETS: Menus // - ImGuiMenuColumns // - BeginMainMenuBar() // - EndMainMenuBar() // - BeginMenuBar() // - EndMenuBar() // - BeginMenu() // - EndMenu() // - MenuItem() //------------------------------------------------------------------------- // Helpers for internal use ImGuiMenuColumns::ImGuiMenuColumns() { Count = 0; Spacing = Width = NextWidth = 0.0f; memset(Pos, 0, sizeof(Pos)); memset(NextWidths, 0, sizeof(NextWidths)); } void ImGuiMenuColumns::Update(int count, float spacing, bool clear) { IM_ASSERT(Count <= IM_ARRAYSIZE(Pos)); Count = count; Width = NextWidth = 0.0f; Spacing = spacing; if (clear) memset(NextWidths, 0, sizeof(NextWidths)); for (int i = 0; i < Count; i++) { if (i > 0 && NextWidths[i] > 0.0f) Width += Spacing; Pos[i] = (float)(int)Width; Width += NextWidths[i]; NextWidths[i] = 0.0f; } } float ImGuiMenuColumns::DeclColumns(float w0, float w1, float w2) // not using va_arg because they promote float to double { NextWidth = 0.0f; NextWidths[0] = ImMax(NextWidths[0], w0); NextWidths[1] = ImMax(NextWidths[1], w1); NextWidths[2] = ImMax(NextWidths[2], w2); for (int i = 0; i < 3; i++) NextWidth += NextWidths[i] + ((i > 0 && NextWidths[i] > 0.0f) ? Spacing : 0.0f); return ImMax(Width, NextWidth); } float ImGuiMenuColumns::CalcExtraSpace(float avail_w) { return ImMax(0.0f, avail_w - Width); } // For the main menu bar, which cannot be moved, we honor g.Style.DisplaySafeAreaPadding to ensure text can be visible on a TV set. bool ImGui::BeginMainMenuBar() { ImGuiContext& g = *GImGui; g.NextWindowData.MenuBarOffsetMinVal = ImVec2(g.Style.DisplaySafeAreaPadding.x, ImMax(g.Style.DisplaySafeAreaPadding.y - g.Style.FramePadding.y, 0.0f)); SetNextWindowPos(g.Viewports[0]->Pos); SetNextWindowSize(ImVec2(g.Viewports[0]->Size.x, g.NextWindowData.MenuBarOffsetMinVal.y + g.FontBaseSize + g.Style.FramePadding.y)); PushStyleVar(ImGuiStyleVar_WindowRounding, 0.0f); PushStyleVar(ImGuiStyleVar_WindowMinSize, ImVec2(0,0)); ImGuiWindowFlags window_flags = ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_MenuBar; bool is_open = Begin("##MainMenuBar", NULL, window_flags) && BeginMenuBar(); PopStyleVar(2); g.NextWindowData.MenuBarOffsetMinVal = ImVec2(0.0f, 0.0f); if (!is_open) { End(); return false; } return true; } void ImGui::EndMainMenuBar() { EndMenuBar(); // When the user has left the menu layer (typically: closed menus through activation of an item), we restore focus to the previous window ImGuiContext& g = *GImGui; if (g.CurrentWindow == g.NavWindow && g.NavLayer == 0) FocusFrontMostActiveWindowIgnoringOne(g.NavWindow); End(); } bool ImGui::BeginMenuBar() { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; if (!(window->Flags & ImGuiWindowFlags_MenuBar)) return false; IM_ASSERT(!window->DC.MenuBarAppending); BeginGroup(); // Backup position on layer 0 PushID("##menubar"); // We don't clip with current window clipping rectangle as it is already set to the area below. However we clip with window full rect. // We remove 1 worth of rounding to Max.x to that text in long menus and small windows don't tend to display over the lower-right rounded area, which looks particularly glitchy. ImRect bar_rect = window->MenuBarRect(); ImRect clip_rect(ImFloor(bar_rect.Min.x + 0.5f), ImFloor(bar_rect.Min.y + window->WindowBorderSize + 0.5f), ImFloor(ImMax(bar_rect.Min.x, bar_rect.Max.x - window->WindowRounding) + 0.5f), ImFloor(bar_rect.Max.y + 0.5f)); clip_rect.ClipWith(window->OuterRectClipped); PushClipRect(clip_rect.Min, clip_rect.Max, false); window->DC.CursorPos = ImVec2(bar_rect.Min.x + window->DC.MenuBarOffset.x, bar_rect.Min.y + window->DC.MenuBarOffset.y); window->DC.LayoutType = ImGuiLayoutType_Horizontal; window->DC.NavLayerCurrent++; window->DC.NavLayerCurrentMask <<= 1; window->DC.MenuBarAppending = true; AlignTextToFramePadding(); return true; } void ImGui::EndMenuBar() { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return; ImGuiContext& g = *GImGui; // Nav: When a move request within one of our child menu failed, capture the request to navigate among our siblings. if (NavMoveRequestButNoResultYet() && (g.NavMoveDir == ImGuiDir_Left || g.NavMoveDir == ImGuiDir_Right) && (g.NavWindow->Flags & ImGuiWindowFlags_ChildMenu)) { ImGuiWindow* nav_earliest_child = g.NavWindow; while (nav_earliest_child->ParentWindow && (nav_earliest_child->ParentWindow->Flags & ImGuiWindowFlags_ChildMenu)) nav_earliest_child = nav_earliest_child->ParentWindow; if (nav_earliest_child->ParentWindow == window && nav_earliest_child->DC.ParentLayoutType == ImGuiLayoutType_Horizontal && g.NavMoveRequestForward == ImGuiNavForward_None) { // To do so we claim focus back, restore NavId and then process the movement request for yet another frame. // This involve a one-frame delay which isn't very problematic in this situation. We could remove it by scoring in advance for multiple window (probably not worth the hassle/cost) IM_ASSERT(window->DC.NavLayerActiveMaskNext & 0x02); // Sanity check FocusWindow(window); SetNavIDWithRectRel(window->NavLastIds[1], 1, window->NavRectRel[1]); g.NavLayer = 1; g.NavDisableHighlight = true; // Hide highlight for the current frame so we don't see the intermediary selection. g.NavMoveRequestForward = ImGuiNavForward_ForwardQueued; NavMoveRequestCancel(); } } IM_ASSERT(window->Flags & ImGuiWindowFlags_MenuBar); IM_ASSERT(window->DC.MenuBarAppending); PopClipRect(); PopID(); window->DC.MenuBarOffset.x = window->DC.CursorPos.x - window->MenuBarRect().Min.x; // Save horizontal position so next append can reuse it. This is kinda equivalent to a per-layer CursorPos. window->DC.GroupStack.back().AdvanceCursor = false; EndGroup(); // Restore position on layer 0 window->DC.LayoutType = ImGuiLayoutType_Vertical; window->DC.NavLayerCurrent--; window->DC.NavLayerCurrentMask >>= 1; window->DC.MenuBarAppending = false; } bool ImGui::BeginMenu(const char* label, bool enabled) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; const ImGuiStyle& style = g.Style; const ImGuiID id = window->GetID(label); ImVec2 label_size = CalcTextSize(label, NULL, true); bool pressed; bool menu_is_open = IsPopupOpen(id); bool menuset_is_open = !(window->Flags & ImGuiWindowFlags_Popup) && (g.OpenPopupStack.Size > g.CurrentPopupStack.Size && g.OpenPopupStack[g.CurrentPopupStack.Size].OpenParentId == window->IDStack.back()); ImGuiWindow* backed_nav_window = g.NavWindow; if (menuset_is_open) g.NavWindow = window; // Odd hack to allow hovering across menus of a same menu-set (otherwise we wouldn't be able to hover parent) // The reference position stored in popup_pos will be used by Begin() to find a suitable position for the child menu (using FindBestWindowPosForPopup). ImVec2 popup_pos, pos = window->DC.CursorPos; if (window->DC.LayoutType == ImGuiLayoutType_Horizontal) { // Menu inside an horizontal menu bar // Selectable extend their highlight by half ItemSpacing in each direction. // For ChildMenu, the popup position will be overwritten by the call to FindBestWindowPosForPopup() in Begin() popup_pos = ImVec2(pos.x - window->WindowPadding.x, pos.y - style.FramePadding.y + window->MenuBarHeight()); window->DC.CursorPos.x += (float)(int)(style.ItemSpacing.x * 0.5f); PushStyleVar(ImGuiStyleVar_ItemSpacing, style.ItemSpacing * 2.0f); float w = label_size.x; pressed = Selectable(label, menu_is_open, ImGuiSelectableFlags_NoHoldingActiveID | ImGuiSelectableFlags_PressedOnClick | ImGuiSelectableFlags_DontClosePopups | (!enabled ? ImGuiSelectableFlags_Disabled : 0), ImVec2(w, 0.0f)); PopStyleVar(); window->DC.CursorPos.x += (float)(int)(style.ItemSpacing.x * (-1.0f + 0.5f)); // -1 spacing to compensate the spacing added when Selectable() did a SameLine(). It would also work to call SameLine() ourselves after the PopStyleVar(). } else { // Menu inside a menu popup_pos = ImVec2(pos.x, pos.y - style.WindowPadding.y); float w = window->MenuColumns.DeclColumns(label_size.x, 0.0f, (float)(int)(g.FontSize * 1.20f)); // Feedback to next frame float extra_w = ImMax(0.0f, GetContentRegionAvail().x - w); pressed = Selectable(label, menu_is_open, ImGuiSelectableFlags_NoHoldingActiveID | ImGuiSelectableFlags_PressedOnClick | ImGuiSelectableFlags_DontClosePopups | ImGuiSelectableFlags_DrawFillAvailWidth | (!enabled ? ImGuiSelectableFlags_Disabled : 0), ImVec2(w, 0.0f)); if (!enabled) PushStyleColor(ImGuiCol_Text, g.Style.Colors[ImGuiCol_TextDisabled]); RenderArrow(pos + ImVec2(window->MenuColumns.Pos[2] + extra_w + g.FontSize * 0.30f, 0.0f), ImGuiDir_Right); if (!enabled) PopStyleColor(); } const bool hovered = enabled && ItemHoverable(window->DC.LastItemRect, id); if (menuset_is_open) g.NavWindow = backed_nav_window; bool want_open = false, want_close = false; if (window->DC.LayoutType == ImGuiLayoutType_Vertical) // (window->Flags & (ImGuiWindowFlags_Popup|ImGuiWindowFlags_ChildMenu)) { // Implement http://bjk5.com/post/44698559168/breaking-down-amazons-mega-dropdown to avoid using timers, so menus feels more reactive. bool moving_within_opened_triangle = false; if (g.HoveredWindow == window && g.OpenPopupStack.Size > g.CurrentPopupStack.Size && g.OpenPopupStack[g.CurrentPopupStack.Size].ParentWindow == window && !(window->Flags & ImGuiWindowFlags_MenuBar)) { if (ImGuiWindow* next_window = g.OpenPopupStack[g.CurrentPopupStack.Size].Window) { ImRect next_window_rect = next_window->Rect(); ImVec2 ta = g.IO.MousePos - g.IO.MouseDelta; ImVec2 tb = (window->Pos.x < next_window->Pos.x) ? next_window_rect.GetTL() : next_window_rect.GetTR(); ImVec2 tc = (window->Pos.x < next_window->Pos.x) ? next_window_rect.GetBL() : next_window_rect.GetBR(); float extra = ImClamp(ImFabs(ta.x - tb.x) * 0.30f, 5.0f, 30.0f); // add a bit of extra slack. ta.x += (window->Pos.x < next_window->Pos.x) ? -0.5f : +0.5f; // to avoid numerical issues tb.y = ta.y + ImMax((tb.y - extra) - ta.y, -100.0f); // triangle is maximum 200 high to limit the slope and the bias toward large sub-menus // FIXME: Multiply by fb_scale? tc.y = ta.y + ImMin((tc.y + extra) - ta.y, +100.0f); moving_within_opened_triangle = ImTriangleContainsPoint(ta, tb, tc, g.IO.MousePos); //window->DrawList->PushClipRectFullScreen(); window->DrawList->AddTriangleFilled(ta, tb, tc, moving_within_opened_triangle ? IM_COL32(0,128,0,128) : IM_COL32(128,0,0,128)); window->DrawList->PopClipRect(); // Debug } } want_close = (menu_is_open && !hovered && g.HoveredWindow == window && g.HoveredIdPreviousFrame != 0 && g.HoveredIdPreviousFrame != id && !moving_within_opened_triangle); want_open = (!menu_is_open && hovered && !moving_within_opened_triangle) || (!menu_is_open && hovered && pressed); if (g.NavActivateId == id) { want_close = menu_is_open; want_open = !menu_is_open; } if (g.NavId == id && g.NavMoveRequest && g.NavMoveDir == ImGuiDir_Right) // Nav-Right to open { want_open = true; NavMoveRequestCancel(); } } else { // Menu bar if (menu_is_open && pressed && menuset_is_open) // Click an open menu again to close it { want_close = true; want_open = menu_is_open = false; } else if (pressed || (hovered && menuset_is_open && !menu_is_open)) // First click to open, then hover to open others { want_open = true; } else if (g.NavId == id && g.NavMoveRequest && g.NavMoveDir == ImGuiDir_Down) // Nav-Down to open { want_open = true; NavMoveRequestCancel(); } } if (!enabled) // explicitly close if an open menu becomes disabled, facilitate users code a lot in pattern such as 'if (BeginMenu("options", has_object)) { ..use object.. }' want_close = true; if (want_close && IsPopupOpen(id)) ClosePopupToLevel(g.CurrentPopupStack.Size); if (!menu_is_open && want_open && g.OpenPopupStack.Size > g.CurrentPopupStack.Size) { // Don't recycle same menu level in the same frame, first close the other menu and yield for a frame. OpenPopup(label); return false; } menu_is_open |= want_open; if (want_open) OpenPopup(label); if (menu_is_open) { // Sub-menus are ChildWindow so that mouse can be hovering across them (otherwise top-most popup menu would steal focus and not allow hovering on parent menu) SetNextWindowPos(popup_pos, ImGuiCond_Always); ImGuiWindowFlags flags = ImGuiWindowFlags_ChildMenu | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoNavFocus; if (window->Flags & (ImGuiWindowFlags_Popup|ImGuiWindowFlags_ChildMenu)) flags |= ImGuiWindowFlags_ChildWindow; menu_is_open = BeginPopupEx(id, flags); // menu_is_open can be 'false' when the popup is completely clipped (e.g. zero size display) } return menu_is_open; } void ImGui::EndMenu() { // Nav: When a left move request _within our child menu_ failed, close the menu. // A menu doesn't close itself because EndMenuBar() wants the catch the last Left<>Right inputs. // However, it means that with the current code, a BeginMenu() from outside another menu or a menu-bar won't be closable with the Left direction. ImGuiContext& g = *GImGui; ImGuiWindow* window = g.CurrentWindow; if (g.NavWindow && g.NavWindow->ParentWindow == window && g.NavMoveDir == ImGuiDir_Left && NavMoveRequestButNoResultYet() && window->DC.LayoutType == ImGuiLayoutType_Vertical) { ClosePopupToLevel(g.OpenPopupStack.Size - 1); NavMoveRequestCancel(); } EndPopup(); } bool ImGui::MenuItem(const char* label, const char* shortcut, bool selected, bool enabled) { ImGuiWindow* window = GetCurrentWindow(); if (window->SkipItems) return false; ImGuiContext& g = *GImGui; ImGuiStyle& style = g.Style; ImVec2 pos = window->DC.CursorPos; ImVec2 label_size = CalcTextSize(label, NULL, true); ImGuiSelectableFlags flags = ImGuiSelectableFlags_PressedOnRelease | (enabled ? 0 : ImGuiSelectableFlags_Disabled); bool pressed; if (window->DC.LayoutType == ImGuiLayoutType_Horizontal) { // Mimic the exact layout spacing of BeginMenu() to allow MenuItem() inside a menu bar, which is a little misleading but may be useful // Note that in this situation we render neither the shortcut neither the selected tick mark float w = label_size.x; window->DC.CursorPos.x += (float)(int)(style.ItemSpacing.x * 0.5f); PushStyleVar(ImGuiStyleVar_ItemSpacing, style.ItemSpacing * 2.0f); pressed = Selectable(label, false, flags, ImVec2(w, 0.0f)); PopStyleVar(); window->DC.CursorPos.x += (float)(int)(style.ItemSpacing.x * (-1.0f + 0.5f)); // -1 spacing to compensate the spacing added when Selectable() did a SameLine(). It would also work to call SameLine() ourselves after the PopStyleVar(). } else { ImVec2 shortcut_size = shortcut ? CalcTextSize(shortcut, NULL) : ImVec2(0.0f, 0.0f); float w = window->MenuColumns.DeclColumns(label_size.x, shortcut_size.x, (float)(int)(g.FontSize * 1.20f)); // Feedback for next frame float extra_w = ImMax(0.0f, GetContentRegionAvail().x - w); pressed = Selectable(label, false, flags | ImGuiSelectableFlags_DrawFillAvailWidth, ImVec2(w, 0.0f)); if (shortcut_size.x > 0.0f) { PushStyleColor(ImGuiCol_Text, g.Style.Colors[ImGuiCol_TextDisabled]); RenderText(pos + ImVec2(window->MenuColumns.Pos[1] + extra_w, 0.0f), shortcut, NULL, false); PopStyleColor(); } if (selected) RenderCheckMark(pos + ImVec2(window->MenuColumns.Pos[2] + extra_w + g.FontSize * 0.40f, g.FontSize * 0.134f * 0.5f), GetColorU32(enabled ? ImGuiCol_Text : ImGuiCol_TextDisabled), g.FontSize * 0.866f); } return pressed; } bool ImGui::MenuItem(const char* label, const char* shortcut, bool* p_selected, bool enabled) { if (MenuItem(label, shortcut, p_selected ? *p_selected : false, enabled)) { if (p_selected) *p_selected = !*p_selected; return true; } return false; }