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Internals: clarified the code for ClampWindowRect().

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As a side-effect, some rounding error may be neutralized however this isn't the intent. (#3309)
This commit is contained in:
omar 2020-06-19 10:08:05 +02:00
parent 8ead38c100
commit 9c2a36f573
1 changed files with 5 additions and 3 deletions
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8
imgui.cpp
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@ -5239,11 +5239,13 @@ static bool ImGui::UpdateWindowManualResize(ImGuiWindow* window, const ImVec2& s
return ret_auto_fit;
}
static inline void ClampWindowRect(ImGuiWindow* window, const ImRect& rect, const ImVec2& padding)
static inline void ClampWindowRect(ImGuiWindow* window, const ImRect& viewport_rect, const ImVec2& padding)
{
ImGuiContext& g = *GImGui;
ImVec2 size_for_clamping = (g.IO.ConfigWindowsMoveFromTitleBarOnly && !(window->Flags & ImGuiWindowFlags_NoTitleBar)) ? ImVec2(window->Size.x, window->TitleBarHeight()) : window->Size;
window->Pos = ImMin(rect.Max - padding, ImMax(window->Pos + size_for_clamping, rect.Min + padding) - size_for_clamping);
ImVec2 size_for_clamping = window->Size;
if (g.IO.ConfigWindowsMoveFromTitleBarOnly && !(window->Flags & ImGuiWindowFlags_NoTitleBar))
size_for_clamping.y = window->TitleBarHeight();
window->Pos = ImClamp(window->Pos, viewport_rect.Min + padding - size_for_clamping, viewport_rect.Max - padding);
}
static void ImGui::RenderWindowOuterBorders(ImGuiWindow* window)