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Tooltips: tooltips have a maximum size corresponding to host display/monitor size.

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ocornut
2025-05-19 18:26:15 +02:00
parent 10a0eb3e1c
commit 415dddf0fa
2 changed files with 11 additions and 4 deletions
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4
docs/CHANGELOG.txt
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@@ -93,6 +93,10 @@ Other changes:
in a certain order. (#8595, #8250)
- Tabs: fixes small issues with how "..." ellipsis moved depending on visibility
of Close Button or Unsaved Document marker. (#8387)
- Tooltips: tooltips have a maximum size corresponding to host display/monitor size,
which mitigates edge case issues in multi-viewport scenarios where abnormally large
windows (e.g. determined programmatically) can lead to renderer backend trying to
create abnormally large framebuffers.
- Nav: fixed assertion when holding gamepad FaceLeft/West button to open
CTRL+Tab windowing + pressing a keyboard key. (#8525)
- Error Handling: added better error report and recovery for extraneous

11
imgui.cpp
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@@ -6398,16 +6398,19 @@ static ImVec2 CalcWindowAutoFitSize(ImGuiWindow* window, const ImVec2& size_cont
const float decoration_h_without_scrollbars = window->DecoOuterSizeY1 + window->DecoOuterSizeY2 - window->ScrollbarSizes.y;
ImVec2 size_pad = window->WindowPadding * 2.0f;
ImVec2 size_desired = size_contents + size_pad + ImVec2(decoration_w_without_scrollbars, decoration_h_without_scrollbars);
// Determine maximum window size
// Child windows are layed within their parent (unless they are also popups/menus) and thus have no restriction
ImVec2 size_max = ((window->Flags & ImGuiWindowFlags_ChildWindow) && !(window->Flags & ImGuiWindowFlags_Popup)) ? ImVec2(FLT_MAX, FLT_MAX) : ImGui::GetMainViewport()->WorkSize - style.DisplaySafeAreaPadding * 2.0f;
if (window->Flags & ImGuiWindowFlags_Tooltip)
{
// Tooltip always resize
return size_desired;
// Tooltip always resize (up to maximum size)
return ImMin(size_desired, size_max);
}
else
{
// Maximum window size is determined by the viewport size or monitor size
ImVec2 size_min = CalcWindowMinSize(window);
ImVec2 size_max = ((window->Flags & ImGuiWindowFlags_ChildWindow) && !(window->Flags & ImGuiWindowFlags_Popup)) ? ImVec2(FLT_MAX, FLT_MAX) : ImGui::GetMainViewport()->WorkSize - style.DisplaySafeAreaPadding * 2.0f;
ImVec2 size_auto_fit = ImClamp(size_desired, ImMin(size_min, size_max), size_max);
// FIXME: CalcWindowAutoFitSize() doesn't take into account that only one axis may be auto-fit when calculating scrollbars,