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Windows: shared code for CalcWindowMinSize().

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+ Don't apply WindowMinSize during auto-fit of child windows (not exercised yet).
This commit is contained in:
ocornut 2023-10-19 17:28:16 +02:00
parent c95fbb4464
commit e2035a514c
1 changed files with 21 additions and 14 deletions
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35
imgui.cpp
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@ -5646,6 +5646,24 @@ static ImGuiWindow* CreateNewWindow(const char* name, ImGuiWindowFlags flags)
return window;
}
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)
ImGuiContext& g = *GImGui;
ImVec2 size_min;
if (window->Flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_ChildMenu | ImGuiWindowFlags_ChildWindow))
{
size_min = ImVec2(4.0f, 4.0f);
}
else
{
ImGuiWindow* window_for_height = window;
size_min = g.Style.WindowMinSize;
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
}
return size_min;
}
static ImVec2 CalcWindowSizeAfterConstraint(ImGuiWindow* window, const ImVec2& size_desired)
{
ImGuiContext& g = *GImGui;
@ -5671,14 +5689,8 @@ static ImVec2 CalcWindowSizeAfterConstraint(ImGuiWindow* window, const ImVec2& s
}
// Minimum size
if (!(window->Flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_AlwaysAutoResize)))
{
ImGuiWindow* window_for_height = window;
new_size = ImMax(new_size, g.Style.WindowMinSize);
const float minimum_height = window_for_height->TitleBarHeight() + window_for_height->MenuBarHeight() + ImMax(0.0f, g.Style.WindowRounding - 1.0f);
new_size.y = ImMax(new_size.y, minimum_height); // Reduce artifacts with very small windows
}
return new_size;
ImVec2 size_min = CalcWindowMinSize(window);
return ImMax(new_size, size_min);
}
static void CalcWindowContentSizes(ImGuiWindow* window, ImVec2* content_size_current, ImVec2* content_size_ideal)
@ -5717,12 +5729,7 @@ static ImVec2 CalcWindowAutoFitSize(ImGuiWindow* window, const ImVec2& size_cont
else
{
// Maximum window size is determined by the viewport size or monitor size
const bool is_popup = (window->Flags & ImGuiWindowFlags_Popup) != 0;
const bool is_menu = (window->Flags & ImGuiWindowFlags_ChildMenu) != 0;
ImVec2 size_min = style.WindowMinSize;
if (is_popup || is_menu) // Popups and menus bypass style.WindowMinSize by default, but we give then a non-zero minimum size to facilitate understanding problematic cases (e.g. empty popups)
size_min = ImMin(size_min, ImVec2(4.0f, 4.0f));
ImVec2 size_min = CalcWindowMinSize(window);
ImVec2 avail_size = ImGui::GetMainViewport()->WorkSize;
ImVec2 size_auto_fit = ImClamp(size_desired, size_min, ImMax(size_min, avail_size - style.DisplaySafeAreaPadding * 2.0f));