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Internals: Begin: Refactor some code into an UpdateManualResize() function.
This commit is contained in:
omar
parent
483f9b0d07
commit
1eee10778b
169
imgui.cpp
169
imgui.cpp
@ -675,6 +675,7 @@ static bool DataTypeApplyOpFromText(const char* buf, const char* ini
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namespace ImGui
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namespace ImGui
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{
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{
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static void UpdateManualResize(ImGuiWindow* window, const ImVec2& size_auto_fit, int* border_held, ImU32 resize_grip_col[4]);
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static void FocusFrontMostActiveWindow(ImGuiWindow* ignore_window);
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static void FocusFrontMostActiveWindow(ImGuiWindow* ignore_window);
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}
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}
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@ -4338,6 +4339,93 @@ static ImRect GetBorderRect(ImGuiWindow* window, int border_n, float perp_paddin
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return ImRect();
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return ImRect();
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}
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}
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// Handle resize for: Resize Grips, Borders, Gamepad
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static void ImGui::UpdateManualResize(ImGuiWindow* window, const ImVec2& size_auto_fit, int* border_held, ImU32 resize_grip_col[4])
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{
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ImGuiContext& g = *GImGui;
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ImGuiWindowFlags flags = window->Flags;
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if ((flags & ImGuiWindowFlags_NoResize) || (flags & ImGuiWindowFlags_AlwaysAutoResize) || window->AutoFitFramesX > 0 || window->AutoFitFramesY > 0)
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return;
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const int resize_grip_count = (flags & ImGuiWindowFlags_ResizeFromAnySide) ? 2 : 1; // 4
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const int resize_border_count = (flags & ImGuiWindowFlags_ResizeFromAnySide) ? 4 : 0;
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const float grip_draw_size = (float)(int)ImMax(g.FontSize * 1.35f, window->WindowRounding + 1.0f + g.FontSize * 0.2f);
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const float grip_hover_size = (float)(int)(grip_draw_size * 0.75f);
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ImVec2 pos_target(FLT_MAX, FLT_MAX);
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ImVec2 size_target(FLT_MAX, FLT_MAX);
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// Manual resize grips
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PushID("#RESIZE");
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for (int resize_grip_n = 0; resize_grip_n < resize_grip_count; resize_grip_n++)
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{
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const ImGuiResizeGripDef& grip = resize_grip_def[resize_grip_n];
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const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, grip.CornerPos);
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// Using the FlattenChilds button flag we make the resize button accessible even if we are hovering over a child window
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ImRect resize_rect(corner, corner + grip.InnerDir * grip_hover_size);
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resize_rect.FixInverted();
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bool hovered, held;
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ButtonBehavior(resize_rect, window->GetID((void*)(intptr_t)resize_grip_n), &hovered, &held, ImGuiButtonFlags_FlattenChildren);
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if (hovered || held)
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g.MouseCursor = (resize_grip_n & 1) ? ImGuiMouseCursor_ResizeNESW : ImGuiMouseCursor_ResizeNWSE;
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if (g.HoveredWindow == window && held && g.IO.MouseDoubleClicked[0] && resize_grip_n == 0)
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{
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// Manual auto-fit when double-clicking
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size_target = CalcSizeAfterConstraint(window, size_auto_fit);
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ClearActiveID();
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}
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else if (held)
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{
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// Resize from any of the four corners
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// We don't use an incremental MouseDelta but rather compute an absolute target size based on mouse position
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ImVec2 corner_target = g.IO.MousePos - g.ActiveIdClickOffset + resize_rect.GetSize() * grip.CornerPos; // Corner of the window corresponding to our corner grip
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CalcResizePosSizeFromAnyCorner(window, corner_target, grip.CornerPos, &pos_target, &size_target);
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}
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if (resize_grip_n == 0 || held || hovered)
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resize_grip_col[resize_grip_n] = GetColorU32(held ? ImGuiCol_ResizeGripActive : hovered ? ImGuiCol_ResizeGripHovered : ImGuiCol_ResizeGrip);
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}
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for (int border_n = 0; border_n < resize_border_count; border_n++)
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{
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const float BORDER_SIZE = 5.0f; // FIXME: Only works _inside_ window because of HoveredWindow check.
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const float BORDER_APPEAR_TIMER = 0.05f; // Reduce visual noise
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bool hovered, held;
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ImRect border_rect = GetBorderRect(window, border_n, grip_hover_size, BORDER_SIZE);
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ButtonBehavior(border_rect, window->GetID((void*)(intptr_t)(border_n + 4)), &hovered, &held, ImGuiButtonFlags_FlattenChildren);
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if ((hovered && g.HoveredIdTimer > BORDER_APPEAR_TIMER) || held)
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{
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g.MouseCursor = (border_n & 1) ? ImGuiMouseCursor_ResizeEW : ImGuiMouseCursor_ResizeNS;
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if (held) *border_held = border_n;
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}
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if (held)
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{
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ImVec2 border_target = window->Pos;
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ImVec2 border_posn;
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if (border_n == 0) { border_posn = ImVec2(0, 0); border_target.y = (g.IO.MousePos.y - g.ActiveIdClickOffset.y); }
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if (border_n == 1) { border_posn = ImVec2(1, 0); border_target.x = (g.IO.MousePos.x - g.ActiveIdClickOffset.x + BORDER_SIZE); }
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if (border_n == 2) { border_posn = ImVec2(0, 1); border_target.y = (g.IO.MousePos.y - g.ActiveIdClickOffset.y + BORDER_SIZE); }
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if (border_n == 3) { border_posn = ImVec2(0, 0); border_target.x = (g.IO.MousePos.x - g.ActiveIdClickOffset.x); }
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CalcResizePosSizeFromAnyCorner(window, border_target, border_posn, &pos_target, &size_target);
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}
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}
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PopID();
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// Apply back modified position/size to window
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if (size_target.x != FLT_MAX)
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{
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window->SizeFull = size_target;
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MarkIniSettingsDirty(window);
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}
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if (pos_target.x != FLT_MAX)
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{
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window->Pos = window->PosFloat = ImFloor(pos_target);
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MarkIniSettingsDirty(window);
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}
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window->Size = window->SizeFull;
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}
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// Push a new ImGui window to add widgets to.
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// Push a new ImGui window to add widgets to.
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// - A default window called "Debug" is automatically stacked at the beginning of every frame so you can use widgets without explicitly calling a Begin/End pair.
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// - A default window called "Debug" is automatically stacked at the beginning of every frame so you can use widgets without explicitly calling a Begin/End pair.
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// - Begin/End can be called multiple times during the frame with the same window name to append content.
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// - Begin/End can be called multiple times during the frame with the same window name to append content.
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@ -4693,86 +4781,9 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
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int border_held = -1;
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int border_held = -1;
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ImU32 resize_grip_col[4] = { 0 };
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ImU32 resize_grip_col[4] = { 0 };
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const int resize_grip_count = (flags & ImGuiWindowFlags_ResizeFromAnySide) ? 2 : 1; // 4
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const int resize_grip_count = (flags & ImGuiWindowFlags_ResizeFromAnySide) ? 2 : 1; // 4
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const int resize_border_count = (flags & ImGuiWindowFlags_ResizeFromAnySide) ? 4 : 0;
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const float grip_draw_size = (float)(int)ImMax(g.FontSize * 1.35f, window->WindowRounding + 1.0f + g.FontSize * 0.2f);
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UpdateManualResize(window, size_auto_fit, &border_held, &resize_grip_col[0]);
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const float grip_draw_size = (float)(int)ImMax(g.FontSize * 1.35f, window_rounding + 1.0f + g.FontSize * 0.2f);
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const float grip_hover_size = (float)(int)(grip_draw_size * 0.75f);
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if (!(flags & ImGuiWindowFlags_AlwaysAutoResize) && window->AutoFitFramesX <= 0 && window->AutoFitFramesY <= 0 && !(flags & ImGuiWindowFlags_NoResize))
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{
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ImVec2 pos_target(FLT_MAX, FLT_MAX);
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ImVec2 size_target(FLT_MAX, FLT_MAX);
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// Manual resize grips
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PushID("#RESIZE");
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for (int resize_grip_n = 0; resize_grip_n < resize_grip_count; resize_grip_n++)
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{
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const ImGuiResizeGripDef& grip = resize_grip_def[resize_grip_n];
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const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, grip.CornerPos);
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// Using the FlattenChilds button flag we make the resize button accessible even if we are hovering over a child window
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ImRect resize_rect(corner, corner + grip.InnerDir * grip_hover_size);
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resize_rect.FixInverted();
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bool hovered, held;
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ButtonBehavior(resize_rect, window->GetID((void*)(intptr_t)resize_grip_n), &hovered, &held, ImGuiButtonFlags_FlattenChildren);
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if (hovered || held)
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g.MouseCursor = (resize_grip_n & 1) ? ImGuiMouseCursor_ResizeNESW : ImGuiMouseCursor_ResizeNWSE;
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if (g.HoveredWindow == window && held && g.IO.MouseDoubleClicked[0] && resize_grip_n == 0)
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{
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// Manual auto-fit when double-clicking
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size_target = CalcSizeAfterConstraint(window, size_auto_fit);
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ClearActiveID();
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}
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else if (held)
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{
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// Resize from any of the four corners
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// We don't use an incremental MouseDelta but rather compute an absolute target size based on mouse position
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ImVec2 corner_target = g.IO.MousePos - g.ActiveIdClickOffset + resize_rect.GetSize() * grip.CornerPos; // Corner of the window corresponding to our corner grip
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CalcResizePosSizeFromAnyCorner(window, corner_target, grip.CornerPos, &pos_target, &size_target);
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}
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if (resize_grip_n == 0 || held || hovered)
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resize_grip_col[resize_grip_n] = GetColorU32(held ? ImGuiCol_ResizeGripActive : hovered ? ImGuiCol_ResizeGripHovered : ImGuiCol_ResizeGrip);
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}
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for (int border_n = 0; border_n < resize_border_count; border_n++)
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{
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const float BORDER_SIZE = 5.0f; // FIXME: Only works _inside_ window because of HoveredWindow check.
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const float BORDER_APPEAR_TIMER = 0.05f; // Reduce visual noise
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bool hovered, held;
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ImRect border_rect = GetBorderRect(window, border_n, grip_hover_size, BORDER_SIZE);
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ButtonBehavior(border_rect, window->GetID((void*)(intptr_t)(border_n+4)), &hovered, &held, ImGuiButtonFlags_FlattenChildren);
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if ((hovered && g.HoveredIdTimer > BORDER_APPEAR_TIMER) || held)
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{
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g.MouseCursor = (border_n & 1) ? ImGuiMouseCursor_ResizeEW : ImGuiMouseCursor_ResizeNS;
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if (held) border_held = border_n;
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}
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if (held)
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{
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ImVec2 border_target = window->Pos;
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ImVec2 border_posn;
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if (border_n == 0) { border_posn = ImVec2(0, 0); border_target.y = (g.IO.MousePos.y - g.ActiveIdClickOffset.y); }
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if (border_n == 1) { border_posn = ImVec2(1, 0); border_target.x = (g.IO.MousePos.x - g.ActiveIdClickOffset.x + BORDER_SIZE); }
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if (border_n == 2) { border_posn = ImVec2(0, 1); border_target.y = (g.IO.MousePos.y - g.ActiveIdClickOffset.y + BORDER_SIZE); }
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if (border_n == 3) { border_posn = ImVec2(0, 0); border_target.x = (g.IO.MousePos.x - g.ActiveIdClickOffset.x); }
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CalcResizePosSizeFromAnyCorner(window, border_target, border_posn, &pos_target, &size_target);
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}
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}
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PopID();
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// Apply back modified position/size to window
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if (size_target.x != FLT_MAX)
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{
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window->SizeFull = size_target;
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MarkIniSettingsDirty(window);
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}
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if (pos_target.x != FLT_MAX)
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{
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window->Pos = window->PosFloat = ImFloor(pos_target);
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MarkIniSettingsDirty(window);
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}
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window->Size = window->SizeFull;
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title_bar_rect = window->TitleBarRect();
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title_bar_rect = window->TitleBarRect();
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}
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// Window background, Default Alpha
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// Window background, Default Alpha
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ImU32 bg_col = GetColorU32(GetWindowBgColorIdxFromFlags(flags));
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ImU32 bg_col = GetColorU32(GetWindowBgColorIdxFromFlags(flags));
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