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Windows: Child windows with only ImGuiChildFlags_AutoResizeY flag keep using the proportional default ItemWidth. (#9355)

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+ Removed Tooltip flag check, it's from 8c4fcf1359 (!) where AlwaysAutoReszie was added after Tooltip. Nowadays Tooltips sets ImGuiChildFlags_AlwaysAutoResize.
This commit is contained in:
ocornut
2026-04-09 12:53:20 +02:00
parent dd17495a42
commit 95bd1577d6
3 changed files with 12 additions and 5 deletions
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13
imgui.cpp
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@@ -6436,7 +6436,7 @@ bool ImGui::BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, I
window_flags |= ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_NoTitleBar;
window_flags |= (parent_window->Flags & ImGuiWindowFlags_NoMove); // Inherit the NoMove flag
if (child_flags & (ImGuiChildFlags_AutoResizeX | ImGuiChildFlags_AutoResizeY | ImGuiChildFlags_AlwaysAutoResize))
window_flags |= ImGuiWindowFlags_AlwaysAutoResize;
window_flags |= ImGuiWindowFlags_AlwaysAutoResize; // FIXME: Would be sane to not make single-axis flag set this. (#9355)
if ((child_flags & (ImGuiChildFlags_ResizeX | ImGuiChildFlags_ResizeY)) == 0)
window_flags |= ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings;
@@ -8035,9 +8035,14 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
window->DC.LayoutType = ImGuiLayoutType_Vertical;
window->DC.ParentLayoutType = parent_window ? parent_window->DC.LayoutType : ImGuiLayoutType_Vertical;
// Default item width. Make it proportional to window size if window manually resizes
const bool is_resizable_window = (window->Size.x > 0.0f && !(flags & ImGuiWindowFlags_Tooltip) && !(flags & ImGuiWindowFlags_AlwaysAutoResize));
if (is_resizable_window)
// Default item width. Make it proportional to window size if window can be manually resized.
// (we cannot use AutoFitFramesX/AutoFitFramesY which is a temporary state)
bool is_resizable_width;
if (flags & ImGuiWindowFlags_ChildWindow)
is_resizable_width = (window->Size.x > 0.0f) && !(window->ChildFlags & (ImGuiChildFlags_AutoResizeX | ImGuiChildFlags_AlwaysAutoResize));
else
is_resizable_width = (window->Size.x > 0.0f) && !(flags & ImGuiWindowFlags_AlwaysAutoResize);
if (is_resizable_width)
window->DC.ItemWidthDefault = ImTrunc(window->Size.x * 0.65f);
else
window->DC.ItemWidthDefault = ImTrunc(g.FontSize * 16.0f);