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Error handling: rework error tooltip logic (will be reused by upcoming feature). (#7961, #7669, #1651)

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ocornut 2024-09-25 18:59:08 +02:00
parent d0107f5da2
commit 9644c51183
3 changed files with 77 additions and 25 deletions
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83
imgui.cpp
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@ -3978,6 +3978,7 @@ ImGuiContext::ImGuiContext(ImFontAtlas* shared_font_atlas)
LogDepthRef = 0;
LogDepthToExpand = LogDepthToExpandDefault = 2;
DebugDrawIdConflictsCount = 0;
DebugLogFlags = ImGuiDebugLogFlags_OutputToTTY;
DebugLocateId = 0;
DebugLogAutoDisableFlags = ImGuiDebugLogFlags_None;
@ -5054,6 +5055,7 @@ void ImGui::NewFrame()
KeepAliveID(g.DragDropPayload.SourceId);
// [DEBUG]
if (!g.IO.ConfigDebugHighlightIdConflicts || !g.IO.KeyCtrl) // Count is locked while holding CTRL
g.DebugDrawIdConflicts = 0;
if (g.IO.ConfigDebugHighlightIdConflicts && g.HoveredIdPreviousFrameItemCount > 1)
g.DebugDrawIdConflicts = g.HoveredIdPreviousFrame;
@ -5461,32 +5463,10 @@ void ImGui::EndFrame()
return;
IM_ASSERT(g.WithinFrameScope && "Forgot to call ImGui::NewFrame()?");
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
if (g.DebugDrawIdConflicts != 0)
{
PushStyleColor(ImGuiCol_PopupBg, ImLerp(g.Style.Colors[ImGuiCol_PopupBg], ImVec4(1.0f, 0.0f, 0.0f, 1.0f), 0.10f));
if (g.DebugItemPickerActive == false && BeginTooltipEx(ImGuiTooltipFlags_OverridePrevious, ImGuiWindowFlags_None))
{
SeparatorText("MESSAGE FROM DEAR IMGUI");
Text("Programmer error: %d visible items with conflicting ID!", g.HoveredIdPreviousFrameItemCount);
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("Press F1 to open \"FAQ -> About the ID Stack System\" and read details.");
BulletText("Press CTRL+P to activate Item Picker and debug-break in item call-stack.");
BulletText("Set io.ConfigDebugDetectIdConflicts=false to disable this warning in non-programmers builds.");
EndTooltip();
}
PopStyleColor();
if (Shortcut(ImGuiMod_Ctrl | ImGuiKey_P, ImGuiInputFlags_RouteGlobal))
DebugStartItemPicker();
if (Shortcut(ImGuiKey_F1, ImGuiInputFlags_RouteGlobal) && g.PlatformIO.Platform_OpenInShellFn != NULL)
g.PlatformIO.Platform_OpenInShellFn(&g, "https://github.com/ocornut/imgui/blob/master/docs/FAQ.md#qa-usage");
}
#endif
CallContextHooks(&g, ImGuiContextHookType_EndFramePre);
ErrorCheckEndFrameSanityChecks();
ErrorCheckEndFrameFinalizeErrorTooltip();
// Notify Platform/OS when our Input Method Editor cursor has moved (e.g. CJK inputs using Microsoft IME)
ImGuiPlatformImeData* ime_data = &g.PlatformImeData;
@ -10587,6 +10567,63 @@ void ImGuiStackSizes::CompareWithContextState(ImGuiContext* ctx)
IM_ASSERT(SizeOfFocusScopeStack == g.FocusScopeStack.Size && "PushFocusScope/PopFocusScope Mismatch!");
}
void ImGui::ErrorCheckEndFrameFinalizeErrorTooltip()
{
#ifndef IMGUI_DISABLE_DEBUG_TOOLS
ImGuiContext& g = *GImGui;
if (g.DebugDrawIdConflicts != 0 && g.IO.KeyCtrl == false)
g.DebugDrawIdConflictsCount = g.HoveredIdPreviousFrameItemCount;
if (g.DebugDrawIdConflicts != 0 && g.DebugItemPickerActive == false && BeginErrorTooltip())
{
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("Set io.ConfigDebugDetectIdConflicts=false to disable this warning in non-programmers builds.");
Separator();
Text("(Hold CTRL and: use");
SameLine();
if (SmallButton("Item Picker"))
DebugStartItemPicker();
SameLine();
Text("to break in item call-stack, or");
SameLine();
if (SmallButton("Open FAQ->About ID Stack System") && g.PlatformIO.Platform_OpenInShellFn != NULL)
g.PlatformIO.Platform_OpenInShellFn(&g, "https://github.com/ocornut/imgui/blob/master/docs/FAQ.md#qa-usage");
EndErrorTooltip();
}
#endif
}
// Pseudo-tooltip. Follow mouse until CTRL is held. When CTRL is held we lock position, allowing to click it.
bool ImGui::BeginErrorTooltip()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = FindWindowByName("##Tooltip_Error");
const bool use_locked_pos = (g.IO.KeyCtrl && window && window->WasActive);
PushStyleColor(ImGuiCol_PopupBg, ImLerp(g.Style.Colors[ImGuiCol_PopupBg], ImVec4(1.0f, 0.0f, 0.0f, 1.0f), 0.15f));
if (use_locked_pos)
SetNextWindowPos(g.ErrorTooltipLockedPos);
bool is_visible = Begin("##Tooltip_Error", NULL, ImGuiWindowFlags_Tooltip | ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_AlwaysAutoResize);
PopStyleColor();
if (is_visible && g.CurrentWindow->BeginCount == 1)
{
SeparatorText("MESSAGE FROM DEAR IMGUI");
BringWindowToDisplayFront(g.CurrentWindow);
BringWindowToFocusFront(g.CurrentWindow);
g.ErrorTooltipLockedPos = GetWindowPos();
}
else if (!is_visible)
{
End();
}
return is_visible;
}
void ImGui::EndErrorTooltip()
{
End();
}
//-----------------------------------------------------------------------------
// [SECTION] ITEM SUBMISSION
//-----------------------------------------------------------------------------

9
imgui_internal.h
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@ -2312,8 +2312,12 @@ struct ImGuiContext
int LogDepthToExpand;
int LogDepthToExpandDefault; // Default/stored value for LogDepthMaxExpand if not specified in the LogXXX function call.
// Error handling
ImVec2 ErrorTooltipLockedPos;
// Debug Tools
// (some of the highly frequently used data are interleaved in other structures above: DebugBreakXXX fields, DebugHookIdInfo, DebugLocateId etc.)
int DebugDrawIdConflictsCount; // Locked count (preserved when holding CTRL)
ImGuiDebugLogFlags DebugLogFlags;
ImGuiTextBuffer DebugLogBuf;
ImGuiTextIndex DebugLogIndex;
@ -3412,11 +3416,14 @@ namespace ImGui
IMGUI_API void GcCompactTransientWindowBuffers(ImGuiWindow* window);
IMGUI_API void GcAwakeTransientWindowBuffers(ImGuiWindow* window);
// Error Checking, State Recovery
// Error handling, State Recovery
IMGUI_API void ErrorLogCallbackToDebugLog(void* user_data, const char* fmt, ...);
IMGUI_API void ErrorCheckEndFrameRecover(ImGuiErrorLogCallback log_callback, void* user_data = NULL);
IMGUI_API void ErrorCheckEndWindowRecover(ImGuiErrorLogCallback log_callback, void* user_data = NULL);
IMGUI_API void ErrorCheckUsingSetCursorPosToExtendParentBoundaries();
IMGUI_API void ErrorCheckEndFrameFinalizeErrorTooltip();
IMGUI_API bool BeginErrorTooltip();
IMGUI_API void EndErrorTooltip();
// Debug Tools
IMGUI_API void DebugAllocHook(ImGuiDebugAllocInfo* info, int frame_count, void* ptr, size_t size); // size >= 0 : alloc, size = -1 : free

8
imgui_widgets.cpp
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@ -7391,6 +7391,7 @@ void ImGui::EndBoxSelect(const ImRect& scope_rect, ImGuiMultiSelectFlags ms_flag
static void DebugLogMultiSelectRequests(const char* function, const ImGuiMultiSelectIO* io)
{
ImGuiContext& g = *GImGui;
IM_UNUSED(function);
for (const ImGuiSelectionRequest& req : io->Requests)
{
if (req.Type == ImGuiSelectionRequestType_SetAll) IMGUI_DEBUG_LOG_SELECTION("[selection] %s: Request: SetAll %d (= %s)\n", function, req.Selected, req.Selected ? "SelectAll" : "Clear");
@ -8157,6 +8158,13 @@ void ImGuiSelectionExternalStorage::ApplyRequests(ImGuiMultiSelectIO* ms_io)
//-------------------------------------------------------------------------
// This is essentially a thin wrapper to using BeginChild/EndChild with the ImGuiChildFlags_FrameStyle flag for stylistic changes + displaying a label.
// This handle some subtleties with capturing info from the label, but for 99% uses it could essentially be rewritten as:
// if (ImGui::BeginChild("...", ImVec2(ImGui::CalcItemWidth(), ImGui::GetTextLineHeight() * 7.5f), ImGuiChildFlags_FrameStyle))
// { .... }
// ImGui::EndChild();
// ImGui::SameLine();
// ImGui::AlignTextToFramePadding();
// ImGui::Text("Label");
// Tip: To have a list filling the entire window width, use size.x = -FLT_MIN and pass an non-visible label e.g. "##empty"
// Tip: If your vertical size is calculated from an item count (e.g. 10 * item_height) consider adding a fractional part to facilitate seeing scrolling boundaries (e.g. 10.25 * item_height).
bool ImGui::BeginListBox(const char* label, const ImVec2& size_arg)