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Docs: amend docs to explain case of using multiple overlayed ButtonBehavior(). (#8030, #7961, #7669)

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ocornut 2024-10-03 16:49:38 +02:00
parent b3c87475a5
commit 3d399bceca
3 changed files with 21 additions and 5 deletions
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8
docs/CHANGELOG.txt
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@ -101,6 +101,14 @@ Other changes:
Decorated log and release notes: https://github.com/ocornut/imgui/releases/tag/v1.91.2
Breaking changes:
- Internals: using multiple overlayed ButtonBehavior() with same ID will now have the
io.ConfigDebugHighlightIdConflicts=true feature emit a warning. (#8030)
It was one of the rare case where using same ID is legal. Workarounds:
- use single ButtonBehavior() call with multiple _MouseButton flags
- or surround the calls with PushItemFlag(ImGuiItemFlags_AllowDuplicateId, true); ... PopItemFlag()
Other changes:
- Added io.ConfigDebugHighlightIdConflicts debug feature! (#7961, #7669)

7
imgui.cpp
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@ -433,6 +433,8 @@ CODE
- 2024/10/03 (1.91.3) - drags: treat v_min==v_max as a valid clamping range when != 0.0f. Zero is a still special value due to legacy reasons, unless using ImGuiSliderFlags_ClampZeroRange. (#7968, #3361, #76)
- drags: extended behavior of ImGuiSliderFlags_AlwaysClamp to include _ClampZeroRange. It considers v_min==v_max==0.0f as a valid clamping range (aka edits not allowed).
although unlikely, it you wish to only clamp on text input but want v_min==v_max==0.0f to mean unclamped drags, you can use _ClampOnInput instead of _AlwaysClamp. (#7968, #3361, #76)
- 2024/09/10 (1.91.2) - internals: using multiple overlayed ButtonBehavior() with same ID will now have io.ConfigDebugHighlightIdConflicts=true feature emit a warning. (#8030)
it was one of the rare case where using same ID is legal. workarounds: (1) use single ButtonBehavior() call with multiple _MouseButton flags, or (2) surround the calls with PushItemFlag(ImGuiItemFlags_AllowDuplicateId, true); ... PopItemFlag()
- 2024/08/23 (1.91.1) - renamed ImGuiChildFlags_Border to ImGuiChildFlags_Borders for consistency. kept inline redirection flag.
- 2024/08/22 (1.91.1) - moved some functions from ImGuiIO to ImGuiPlatformIO structure:
- io.GetClipboardTextFn -> platform_io.Platform_GetClipboardTextFn + changed 'void* user_data' to 'ImGuiContext* ctx'. Pull your user data from platform_io.ClipboardUserData.
@ -10656,9 +10658,10 @@ void ImGui::ErrorCheckEndFrameFinalizeErrorTooltip()
Text("Programmer error: %d visible items with conflicting ID!", g.DebugDrawIdConflictsCount);
BulletText("Code should use PushID()/PopID() in loops, or append \"##xx\" to same-label identifiers!");
BulletText("Empty label e.g. Button(\"\") == same ID as parent widget/node. Use Button(\"##xx\") instead!");
//BulletText("Code intending to use duplicate ID may use e.g. PushItemFlag(ImGuiItemFlags_AllowDuplicateId, true); ... PopItemFlag()"); // Not making this too visible for fear of it being abused.
BulletText("Set io.ConfigDebugDetectIdConflicts=false to disable this warning in non-programmers builds.");
Separator();
Text("(Hold CTRL and: use");
Text("(Hold CTRL to: use");
SameLine();
if (SmallButton("Item Picker"))
DebugStartItemPicker();
@ -10673,7 +10676,7 @@ void ImGui::ErrorCheckEndFrameFinalizeErrorTooltip()
if (g.ErrorCountCurrentFrame > 0 && BeginErrorTooltip()) // Amend at end of frame
{
Separator();
Text("(Hold CTRL and:");
Text("(Hold CTRL to:");
SameLine();
if (SmallButton("Enable Asserts"))
g.IO.ConfigErrorRecoveryEnableAssert = true;

11
imgui_widgets.cpp
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@ -482,9 +482,14 @@ void ImGui::BulletTextV(const char* fmt, va_list args)
// Frame N + RepeatDelay + RepeatRate*N true true - true
//-------------------------------------------------------------------------------------------------------------------------------------------------
// FIXME: For refactor we could output flags, incl mouse hovered vs nav keyboard vs nav triggered etc.
// And better standardize how widgets use 'GetColor32((held && hovered) ? ... : hovered ? ...)' vs 'GetColor32(held ? ... : hovered ? ...);'
// For mouse feedback we typically prefer the 'held && hovered' test, but for nav feedback not always. Outputting hovered=true on Activation may be misleading.
// - FIXME: For refactor we could output flags, incl mouse hovered vs nav keyboard vs nav triggered etc.
// And better standardize how widgets use 'GetColor32((held && hovered) ? ... : hovered ? ...)' vs 'GetColor32(held ? ... : hovered ? ...);'
// For mouse feedback we typically prefer the 'held && hovered' test, but for nav feedback not always. Outputting hovered=true on Activation may be misleading.
// - Since v1.91.2 (Sept 2024) we included io.ConfigDebugHighlightIdConflicts feature.
// One idiom which was previously valid which will now emit a warning is when using multiple overlayed ButtonBehavior()
// with same ID and different MouseButton (see #8030). You can fix it by:
// (1) switching to use a single ButtonBehavior() with multiple _MouseButton flags.
// or (2) surrounding those calls with PushItemFlag(ImGuiItemFlags_AllowDuplicateId, true); ... PopItemFlag()
bool ImGui::ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool* out_held, ImGuiButtonFlags flags)
{
ImGuiContext& g = *GImGui;