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Popups: Fixed resizable popup minimum size being too small. Standardized CalcWindowMinSize() logic a bit more. (#73290

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Amend e2035a514, 623bff23ce, 923535240, etc.
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ocornut 2024-02-20 15:00:01 +01:00
parent 014e0ac8c9
commit e78ce72eb6
2 changed files with 11 additions and 5 deletions
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2
docs/CHANGELOG.txt
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@ -45,6 +45,8 @@ Other changes:
- Menus, Popups: Fixed an issue where hovering a parent-menu upward would
erroneously close the window. (#7325, #7287, #7063)
- Popups: Fixed resizable popup minimum size being too small. Standardized minimum
size logic. (#7329).
- Tables: Angled headers: fixed support for multi-line labels. (#6917)
- Tables: Angled headers: various fixes to accurately handle CellPadding changes. (#6917)
- Tables: Angled headers: properly registers horizontal component of angled headers

14
imgui.cpp
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@ -5676,22 +5676,25 @@ static ImGuiWindow* CreateNewWindow(const char* name, ImGuiWindowFlags flags)
static inline ImVec2 CalcWindowMinSize(ImGuiWindow* window)
{
// Popups, menus and childs bypass style.WindowMinSize by default, but we give then a non-zero minimum size to facilitate understanding problematic cases (e.g. empty popups)
// FIXME: the if/else could probably be removed, "reduce artifacts" section for all windows.
// We give windows non-zero minimum size to facilitate understanding problematic cases (e.g. empty popups)
// FIXME: Essentially we want to restrict manual resizing to WindowMinSize+Decoration, and allow api resizing to be smaller.
// Perhaps should tend further a neater test for this.
ImGuiContext& g = *GImGui;
ImVec2 size_min;
if (window->Flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_ChildMenu | ImGuiWindowFlags_ChildWindow))
if ((window->Flags & ImGuiWindowFlags_ChildWindow) && !(window->Flags & ImGuiWindowFlags_Popup))
{
size_min.x = (window->ChildFlags & ImGuiChildFlags_ResizeX) ? g.Style.WindowMinSize.x : 4.0f;
size_min.y = (window->ChildFlags & ImGuiChildFlags_ResizeY) ? g.Style.WindowMinSize.y : 4.0f;
}
else
{
ImGuiWindow* window_for_height = window;
size_min.x = ((window->Flags & ImGuiWindowFlags_AlwaysAutoResize) == 0) ? g.Style.WindowMinSize.x : 4.0f;
size_min.y = ((window->Flags & ImGuiWindowFlags_AlwaysAutoResize) == 0) ? g.Style.WindowMinSize.y : 4.0f;
size_min.y = ImMax(size_min.y, window_for_height->TitleBarHeight() + window_for_height->MenuBarHeight() + ImMax(0.0f, g.Style.WindowRounding - 1.0f)); // Reduce artifacts with very small windows
}
// Reduce artifacts with very small windows
ImGuiWindow* window_for_height = window;
size_min.y = ImMax(size_min.y, window_for_height->TitleBarHeight() + window_for_height->MenuBarHeight() + ImMax(0.0f, g.Style.WindowRounding - 1.0f));
return size_min;
}
@ -6755,6 +6758,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
#endif
// Handle manual resize: Resize Grips, Borders, Gamepad
// FIXME: _ChildWindow + _Popup windows may want resize grips.
int border_hovered = -1, border_held = -1;
ImU32 resize_grip_col[4] = {};
const int resize_grip_count = (window->Flags & ImGuiWindowFlags_ChildWindow) ? 0 : g.IO.ConfigWindowsResizeFromEdges ? 2 : 1; // Allow resize from lower-left if we have the mouse cursor feedback for it.