mirror of
https://github.com/Drezil/imgui.git
synced 2025-07-04 12:08:47 +02:00
Internals: extracted stack checking code into a ImGuiStackSizes helper struct + added test for FocusScope
+ renamed g.ColorModifiers > g.ColorStack, g.StyleModifiers > g.StyleVarStack
This commit is contained in:
63
imgui.cpp
63
imgui.cpp
@ -872,7 +872,6 @@ static int FindWindowFocusIndex(ImGuiWindow* window);
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// Error Checking
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static void ErrorCheckNewFrameSanityChecks();
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static void ErrorCheckEndFrameSanityChecks();
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static void ErrorCheckBeginEndCompareStacksSize(ImGuiWindow* window, bool begin);
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// Misc
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static void UpdateSettings();
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@ -2352,7 +2351,7 @@ void ImGui::PushStyleColor(ImGuiCol idx, ImU32 col)
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ImGuiColorMod backup;
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backup.Col = idx;
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backup.BackupValue = g.Style.Colors[idx];
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g.ColorModifiers.push_back(backup);
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g.ColorStack.push_back(backup);
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g.Style.Colors[idx] = ColorConvertU32ToFloat4(col);
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}
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@ -2362,7 +2361,7 @@ void ImGui::PushStyleColor(ImGuiCol idx, const ImVec4& col)
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ImGuiColorMod backup;
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backup.Col = idx;
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backup.BackupValue = g.Style.Colors[idx];
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g.ColorModifiers.push_back(backup);
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g.ColorStack.push_back(backup);
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g.Style.Colors[idx] = col;
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}
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@ -2371,9 +2370,9 @@ void ImGui::PopStyleColor(int count)
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ImGuiContext& g = *GImGui;
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while (count > 0)
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{
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ImGuiColorMod& backup = g.ColorModifiers.back();
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ImGuiColorMod& backup = g.ColorStack.back();
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g.Style.Colors[backup.Col] = backup.BackupValue;
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g.ColorModifiers.pop_back();
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g.ColorStack.pop_back();
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count--;
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}
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}
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@ -2427,7 +2426,7 @@ void ImGui::PushStyleVar(ImGuiStyleVar idx, float val)
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{
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ImGuiContext& g = *GImGui;
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float* pvar = (float*)var_info->GetVarPtr(&g.Style);
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g.StyleModifiers.push_back(ImGuiStyleMod(idx, *pvar));
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g.StyleVarStack.push_back(ImGuiStyleMod(idx, *pvar));
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*pvar = val;
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return;
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}
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@ -2441,7 +2440,7 @@ void ImGui::PushStyleVar(ImGuiStyleVar idx, const ImVec2& val)
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{
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ImGuiContext& g = *GImGui;
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ImVec2* pvar = (ImVec2*)var_info->GetVarPtr(&g.Style);
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g.StyleModifiers.push_back(ImGuiStyleMod(idx, *pvar));
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g.StyleVarStack.push_back(ImGuiStyleMod(idx, *pvar));
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*pvar = val;
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return;
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}
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@ -2454,12 +2453,12 @@ void ImGui::PopStyleVar(int count)
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while (count > 0)
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{
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// We avoid a generic memcpy(data, &backup.Backup.., GDataTypeSize[info->Type] * info->Count), the overhead in Debug is not worth it.
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ImGuiStyleMod& backup = g.StyleModifiers.back();
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ImGuiStyleMod& backup = g.StyleVarStack.back();
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const ImGuiStyleVarInfo* info = GetStyleVarInfo(backup.VarIdx);
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void* data = info->GetVarPtr(&g.Style);
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if (info->Type == ImGuiDataType_Float && info->Count == 1) { ((float*)data)[0] = backup.BackupFloat[0]; }
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else if (info->Type == ImGuiDataType_Float && info->Count == 2) { ((float*)data)[0] = backup.BackupFloat[0]; ((float*)data)[1] = backup.BackupFloat[1]; }
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g.StyleModifiers.pop_back();
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g.StyleVarStack.pop_back();
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count--;
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}
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}
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@ -3996,8 +3995,8 @@ void ImGui::Shutdown(ImGuiContext* context)
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g.HoveredWindow = g.HoveredRootWindow = g.HoveredWindowUnderMovingWindow = NULL;
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g.ActiveIdWindow = g.ActiveIdPreviousFrameWindow = NULL;
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g.MovingWindow = NULL;
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g.ColorModifiers.clear();
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g.StyleModifiers.clear();
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g.ColorStack.clear();
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g.StyleVarStack.clear();
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g.FontStack.clear();
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g.OpenPopupStack.clear();
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g.BeginPopupStack.clear();
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@ -5515,8 +5514,10 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
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// Add to stack
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// We intentionally set g.CurrentWindow to NULL to prevent usage until when the viewport is set, then will call SetCurrentWindow()
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g.CurrentWindowStack.push_back(window);
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g.CurrentWindow = window;
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window->DC.StackSizesOnBegin.SetToCurrentState();
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g.CurrentWindow = NULL;
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ErrorCheckBeginEndCompareStacksSize(window, true);
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if (flags & ImGuiWindowFlags_Popup)
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{
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ImGuiPopupData& popup_ref = g.OpenPopupStack[g.BeginPopupStack.Size];
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@ -6112,7 +6113,7 @@ void ImGui::End()
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g.CurrentWindowStack.pop_back();
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if (window->Flags & ImGuiWindowFlags_Popup)
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g.BeginPopupStack.pop_back();
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ErrorCheckBeginEndCompareStacksSize(window, false);
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window->DC.StackSizesOnBegin.CompareWithCurrentState();
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SetCurrentWindow(g.CurrentWindowStack.empty() ? NULL : g.CurrentWindowStack.back());
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}
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@ -6903,26 +6904,38 @@ static void ImGui::ErrorCheckEndFrameSanityChecks()
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IM_ASSERT_USER_ERROR(g.GroupStack.Size == 0, "Missing EndGroup call!");
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}
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// Save and compare stack sizes on Begin()/End() to detect usage errors
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// Begin() calls this with write=true
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// End() calls this with write=false
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static void ImGui::ErrorCheckBeginEndCompareStacksSize(ImGuiWindow* window, bool begin)
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// Save current stack sizes for later compare
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void ImGuiStackSizes::SetToCurrentState()
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{
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ImGuiContext& g = *GImGui;
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short* p = &window->DC.StackSizesBackup[0];
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ImGuiWindow* window = g.CurrentWindow;
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SizeOfIDStack = (short)window->IDStack.Size;
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SizeOfColorStack = (short)g.ColorStack.Size;
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SizeOfStyleVarStack = (short)g.StyleVarStack.Size;
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SizeOfFontStack = (short)g.FontStack.Size;
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SizeOfFocusScopeStack = (short)g.FocusScopeStack.Size;
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SizeOfGroupStack = (short)g.GroupStack.Size;
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SizeOfBeginPopupStack = (short)g.BeginPopupStack.Size;
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}
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// Compare to detect usage errors
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void ImGuiStackSizes::CompareWithCurrentState()
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{
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ImGuiContext& g = *GImGui;
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ImGuiWindow* window = g.CurrentWindow;
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// Window stacks
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// NOT checking: DC.ItemWidth, DC.TextWrapPos (per window) to allow user to conveniently push once and not pop (they are cleared on Begin)
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{ IM_ASSERT(window->IDStack.Size == 1 && "PushID/PopID or TreeNode/TreePop Mismatch!"); } // Too few or too many PopID()/TreePop();
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IM_ASSERT(SizeOfIDStack == window->IDStack.Size && "PushID/PopID or TreeNode/TreePop Mismatch!");
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// Global stacks
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// For color, style and font stacks there is an incentive to use Push/Begin/Pop/.../End patterns, so we relax our checks a little to allow them.
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{ int n = g.GroupStack.Size; if (begin) *p = (short)n; else IM_ASSERT(*p == n && "BeginGroup/EndGroup Mismatch!"); p++; } // Too few or too many EndGroup()
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{ int n = g.BeginPopupStack.Size; if (begin) *p = (short)n; else IM_ASSERT(*p == n && "BeginMenu/EndMenu or BeginPopup/EndPopup Mismatch!"); p++; }// Too few or too many EndMenu()/EndPopup()
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{ int n = g.ColorModifiers.Size; if (begin) *p = (short)n; else IM_ASSERT(*p >= n && "PushStyleColor/PopStyleColor Mismatch!"); p++; } // Too few or too many PopStyleColor()
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{ int n = g.StyleModifiers.Size; if (begin) *p = (short)n; else IM_ASSERT(*p >= n && "PushStyleVar/PopStyleVar Mismatch!"); p++; } // Too few or too many PopStyleVar()
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{ int n = g.FontStack.Size; if (begin) *p = (short)n; else IM_ASSERT(*p >= n && "PushFont/PopFont Mismatch!"); p++; } // Too few or too many PopFont()
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IM_ASSERT(p == window->DC.StackSizesBackup + IM_ARRAYSIZE(window->DC.StackSizesBackup));
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IM_ASSERT(SizeOfGroupStack == g.GroupStack.Size && "BeginGroup/EndGroup Mismatch!");
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IM_ASSERT(SizeOfBeginPopupStack == g.BeginPopupStack.Size && "BeginPopup/EndPopup or BeginMenu/EndMenu Mismatch!");
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IM_ASSERT(SizeOfColorStack >= g.ColorStack.Size && "PushStyleColor/PopStyleColor Mismatch!");
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IM_ASSERT(SizeOfStyleVarStack >= g.StyleVarStack.Size && "PushStyleVar/PopStyleVar Mismatch!");
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IM_ASSERT(SizeOfFontStack >= g.FontStack.Size && "PushFont/PopFont Mismatch!");
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IM_ASSERT(SizeOfFocusScopeStack == g.FocusScopeStack.Size && "PushFocusScope/PopFocusScope Mismatch!");
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}
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