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Internals: folded ImGuiItemAddFlags into ImGuiItemFlags. ImGuiItemAddFlags_Focusable > ImGuiItemFlags_Inputable. One step in the big nav/tab/focus rework.

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Bonus simplified Selectable() handling of its custom disabled flag. (#211)
This commit is contained in:
ocornut 2021-09-01 14:41:24 +02:00
parent 73a5e82e04
commit 3d9d3b49ae
4 changed files with 27 additions and 43 deletions
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16
imgui.cpp
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@ -3297,7 +3297,8 @@ bool ImGui::IsClippedEx(const ImRect& bb, ImGuiID id, bool clip_even_when_logged
// Called by ItemAdd()
// Process TAB/Shift+TAB. Be mindful that this function may _clear_ the ActiveID when tabbing out.
void ImGui::ItemFocusable(ImGuiWindow* window, ImGuiID id)
// [WIP] This will eventually be refactored and moved into NavProcessItem()
void ImGui::ItemInputable(ImGuiWindow* window, ImGuiID id)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(id != 0 && id == g.LastItemData.ID);
@ -7489,7 +7490,7 @@ void ImGui::ItemSize(const ImRect& bb, float text_baseline_y)
// Declare item bounding box for clipping and interaction.
// Note that the size can be different than the one provided to ItemSize(). Typically, widgets that spread over available surface
// declare their minimum size requirement to ItemSize() and provide a larger region to ItemAdd() which is used drawing/interaction.
bool ImGui::ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb_arg, ImGuiItemAddFlags flags)
bool ImGui::ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb_arg, ImGuiItemFlags extra_flags)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
@ -7499,7 +7500,7 @@ bool ImGui::ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb_arg, ImGu
g.LastItemData.ID = id;
g.LastItemData.Rect = bb;
g.LastItemData.NavRect = nav_bb_arg ? *nav_bb_arg : bb;
g.LastItemData.InFlags = g.CurrentItemFlags;
g.LastItemData.InFlags = g.CurrentItemFlags | extra_flags;
g.LastItemData.StatusFlags = ImGuiItemStatusFlags_None;
// Directional navigation processing
@ -7542,10 +7543,10 @@ bool ImGui::ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb_arg, ImGu
return false;
//if (g.IO.KeyAlt) window->DrawList->AddRect(bb.Min, bb.Max, IM_COL32(255,255,0,120)); // [DEBUG]
// Tab stop handling (previously was using internal ItemFocusable() api)
// FIXME-NAV: We would now want to move this above the clipping test, but this would require being able to scroll and currently this would mean an extra frame. (#4079, #343)
if (flags & ImGuiItemAddFlags_Focusable)
ItemFocusable(window, id);
// [WIP] Tab stop handling (previously was using internal FocusableItemRegister() api)
// FIXME-NAV: We would now want to move this before the clipping test, but this would require being able to scroll and currently this would mean an extra frame. (#4079, #343)
if (extra_flags & ImGuiItemFlags_Inputable)
ItemInputable(window, id);
// We need to calculate this now to take account of the current clipping rectangle (as items like Selectable may change them)
if (IsMouseHoveringRect(bb.Min, bb.Max))
@ -8963,6 +8964,7 @@ bool ImGui::NavMoveRequestButNoResultYet()
return g.NavMoveScoringItems && g.NavMoveResultLocal.ID == 0 && g.NavMoveResultOther.ID == 0;
}
// FIXME: ScoringRect is not set
void ImGui::NavMoveRequestSubmit(ImGuiDir move_dir, ImGuiDir clip_dir, ImGuiNavMoveFlags move_flags)
{
ImGuiContext& g = *GImGui;

2
imgui.h
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@ -64,7 +64,7 @@ Index of this file:
// Version
// (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY99 then bounce up to XYY00, XYY01 etc. when release tagging happens)
#define IMGUI_VERSION "1.85 WIP"
#define IMGUI_VERSION_NUM 18410
#define IMGUI_VERSION_NUM 18411
#define IMGUI_CHECKVERSION() ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))
#define IMGUI_HAS_TABLE

24
imgui_internal.h
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@ -144,7 +144,6 @@ struct ImGuiWindowSettings; // Storage for a window .ini settings (we ke
// Use your programming IDE "Go to definition" facility on the names of the center columns to find the actual flags/enum lists.
typedef int ImGuiLayoutType; // -> enum ImGuiLayoutType_ // Enum: Horizontal or vertical
typedef int ImGuiItemFlags; // -> enum ImGuiItemFlags_ // Flags: for PushItemFlag()
typedef int ImGuiItemAddFlags; // -> enum ImGuiItemAddFlags_ // Flags: for ItemAdd()
typedef int ImGuiItemStatusFlags; // -> enum ImGuiItemStatusFlags_ // Flags: for DC.LastItemStatusFlags
typedef int ImGuiOldColumnFlags; // -> enum ImGuiOldColumnFlags_ // Flags: for BeginColumns()
typedef int ImGuiNavHighlightFlags; // -> enum ImGuiNavHighlightFlags_ // Flags: for RenderNavHighlight()
@ -742,15 +741,8 @@ enum ImGuiItemFlags_
ImGuiItemFlags_NoNavDefaultFocus = 1 << 4, // false // Disable item being a candidate for default focus (e.g. used by title bar items)
ImGuiItemFlags_SelectableDontClosePopup = 1 << 5, // false // Disable MenuItem/Selectable() automatically closing their popup window
ImGuiItemFlags_MixedValue = 1 << 6, // false // [BETA] Represent a mixed/indeterminate value, generally multi-selection where values differ. Currently only supported by Checkbox() (later should support all sorts of widgets)
ImGuiItemFlags_ReadOnly = 1 << 7 // false // [ALPHA] Allow hovering interactions but underlying value is not changed.
};
// Flags for ItemAdd()
// FIXME-NAV: _Focusable is _ALMOST_ what you would expect to be called '_TabStop' but because SetKeyboardFocusHere() works on items with no TabStop we distinguish Focusable from TabStop.
enum ImGuiItemAddFlags_
{
ImGuiItemAddFlags_None = 0,
ImGuiItemAddFlags_Focusable = 1 << 0 // FIXME-NAV: In current/legacy scheme, Focusable+TabStop support are opt-in by widgets. We will transition it toward being opt-out, so this flag is expected to eventually disappear.
ImGuiItemFlags_ReadOnly = 1 << 7, // false // [ALPHA] Allow hovering interactions but underlying value is not changed.
ImGuiItemFlags_Inputable = 1 << 8 // false // [WIP] Auto-activate item when focused. Currently only used and supported by a few items before it becomes a generic feature.
};
// Storage for LastItem data
@ -1851,7 +1843,7 @@ struct IMGUI_API ImGuiWindowTempData
int CurrentTableIdx; // Current table index (into g.Tables)
ImGuiLayoutType LayoutType;
ImGuiLayoutType ParentLayoutType; // Layout type of parent window at the time of Begin()
int FocusCounterRegular; // (Legacy Focus/Tabbing system) Sequential counter, start at -1 and increase as assigned via ImGuiItemAddFlags_Focusable (FIXME-NAV: Needs redesign)
int FocusCounterRegular; // (Legacy Focus/Tabbing system) Sequential counter, start at -1 and increase when ImGuiItemFlags_Inputable (FIXME-NAV: Needs redesign)
int FocusCounterTabStop; // (Legacy Focus/Tabbing system) Same, but only count widgets which you can Tab through.
// Local parameters stacks
@ -2403,9 +2395,9 @@ namespace ImGui
// Basic Helpers for widget code
IMGUI_API void ItemSize(const ImVec2& size, float text_baseline_y = -1.0f);
IMGUI_API void ItemSize(const ImRect& bb, float text_baseline_y = -1.0f);
IMGUI_API bool ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb = NULL, ImGuiItemAddFlags flags = 0);
IMGUI_API bool ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb = NULL, ImGuiItemFlags extra_flags = 0);
IMGUI_API bool ItemHoverable(const ImRect& bb, ImGuiID id);
IMGUI_API void ItemFocusable(ImGuiWindow* window, ImGuiID id);
IMGUI_API void ItemInputable(ImGuiWindow* window, ImGuiID id);
IMGUI_API bool IsClippedEx(const ImRect& bb, ImGuiID id, bool clip_even_when_logged);
IMGUI_API ImVec2 CalcItemSize(ImVec2 size, float default_w, float default_h);
IMGUI_API float CalcWrapWidthForPos(const ImVec2& pos, float wrap_pos_x);
@ -2419,11 +2411,13 @@ namespace ImGui
IMGUI_API void PopItemFlag();
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
// Currently refactoring focus/nav/tabbing system
// If you have old/custom copy-and-pasted widgets that used FocusableItemRegister():
// (Old) IMGUI_VERSION_NUM < 18209: using 'ItemAdd(....)' and 'bool focused = FocusableItemRegister(...)'
// (New) IMGUI_VERSION_NUM >= 18209: using 'ItemAdd(..., ImGuiItemAddFlags_Focusable)' and 'bool focused = (GetItemStatusFlags() & ImGuiItemStatusFlags_Focused) != 0'
// (Old) IMGUI_VERSION_NUM >= 18209: using 'ItemAdd(..., ImGuiItemAddFlags_Focusable)' and 'bool focused = (GetItemStatusFlags() & ImGuiItemStatusFlags_Focused) != 0'
// (New) IMGUI_VERSION_NUM >= 18411: using 'ItemAdd(..., ImGuiItemAddFlags_Inputable)' and 'bool focused = (GetItemStatusFlags() & ImGuiItemStatusFlags_Focused) != 0'
// Widget code are simplified as there's no need to call FocusableItemUnregister() while managing the transition from regular widget to TempInputText()
inline bool FocusableItemRegister(ImGuiWindow* window, ImGuiID id) { IM_ASSERT(0); IM_UNUSED(window); IM_UNUSED(id); return false; } // -> pass ImGuiItemAddFlags_Focusable flag to ItemAdd()
inline bool FocusableItemRegister(ImGuiWindow* window, ImGuiID id) { IM_ASSERT(0); IM_UNUSED(window); IM_UNUSED(id); return false; } // -> pass ImGuiItemAddFlags_Inputable flag to ItemAdd()
inline void FocusableItemUnregister(ImGuiWindow* window) { IM_ASSERT(0); IM_UNUSED(window); } // -> unnecessary: TempInputText() uses ImGuiInputTextFlags_MergedItem
#endif

28
imgui_widgets.cpp
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@ -2389,7 +2389,7 @@ bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* p_data,
const bool temp_input_allowed = (flags & ImGuiSliderFlags_NoInput) == 0;
ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, id, &frame_bb, temp_input_allowed ? ImGuiItemAddFlags_Focusable : 0))
if (!ItemAdd(total_bb, id, &frame_bb, temp_input_allowed ? ImGuiItemFlags_Inputable : 0))
return false;
// Default format string when passing NULL
@ -3005,7 +3005,7 @@ bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* p_dat
const bool temp_input_allowed = (flags & ImGuiSliderFlags_NoInput) == 0;
ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, id, &frame_bb, temp_input_allowed ? ImGuiItemAddFlags_Focusable : 0))
if (!ItemAdd(total_bb, id, &frame_bb, temp_input_allowed ? ImGuiItemFlags_Inputable : 0))
return false;
// Default format string when passing NULL
@ -3443,7 +3443,7 @@ bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* p_data
style.FramePadding.x = style.FramePadding.y;
ImGuiButtonFlags button_flags = ImGuiButtonFlags_Repeat | ImGuiButtonFlags_DontClosePopups;
if (flags & ImGuiInputTextFlags_ReadOnly)
BeginDisabled(true);
BeginDisabled();
SameLine(0, style.ItemInnerSpacing.x);
if (ButtonEx("-", ImVec2(button_size, button_size), button_flags))
{
@ -3975,7 +3975,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
{
ImVec2 backup_pos = window->DC.CursorPos;
ItemSize(total_bb, style.FramePadding.y);
if (!ItemAdd(total_bb, id, &frame_bb, ImGuiItemAddFlags_Focusable))
if (!ItemAdd(total_bb, id, &frame_bb, ImGuiItemFlags_Inputable))
{
EndGroup();
return false;
@ -4006,7 +4006,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
// Support for internal ImGuiInputTextFlags_MergedItem flag, which could be redesigned as an ItemFlags if needed (with test performed in ItemAdd)
ItemSize(total_bb, style.FramePadding.y);
if (!(flags & ImGuiInputTextFlags_MergedItem))
if (!ItemAdd(total_bb, id, &frame_bb, ImGuiItemAddFlags_Focusable))
if (!ItemAdd(total_bb, id, &frame_bb, ImGuiItemFlags_Inputable))
return false;
item_status_flags = g.LastItemData.StatusFlags;
}
@ -6144,20 +6144,8 @@ bool ImGui::Selectable(const char* label, bool selected, ImGuiSelectableFlags fl
window->ClipRect.Max.x = window->ParentWorkRect.Max.x;
}
bool item_add;
const bool disabled_item = (flags & ImGuiSelectableFlags_Disabled) != 0;
if (disabled_item)
{
ImGuiItemFlags backup_item_flags = g.CurrentItemFlags;
g.CurrentItemFlags |= ImGuiItemFlags_Disabled;
item_add = ItemAdd(bb, id);
g.CurrentItemFlags = backup_item_flags;
}
else
{
item_add = ItemAdd(bb, id);
}
const bool item_add = ItemAdd(bb, id, NULL, disabled_item ? ImGuiItemFlags_Disabled : ImGuiItemFlags_None);
if (span_all_columns)
{
window->ClipRect.Min.x = backup_clip_rect_min_x;
@ -6169,7 +6157,7 @@ bool ImGui::Selectable(const char* label, bool selected, ImGuiSelectableFlags fl
const bool disabled_global = (g.CurrentItemFlags & ImGuiItemFlags_Disabled) != 0;
if (disabled_item && !disabled_global) // Only testing this as an optimization
BeginDisabled(true);
BeginDisabled();
// FIXME: We can standardize the behavior of those two, we could also keep the fast path of override ClipRect + full push on render only,
// which would be advantageous since most selectable are not selected.
@ -7007,7 +6995,7 @@ bool ImGui::MenuItemEx(const char* label, const char* icon, const char* shortcut
bool pressed;
PushID(label);
if (!enabled)
BeginDisabled(true);
BeginDisabled();
const ImGuiSelectableFlags flags = ImGuiSelectableFlags_SelectOnRelease | ImGuiSelectableFlags_SetNavIdOnHover;
const ImGuiMenuColumns* offsets = &window->DC.MenuColumns;
if (window->DC.LayoutType == ImGuiLayoutType_Horizontal)