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TabBar: simpify TabItem rendering using stroke flags.

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May tend toward using _StrokeInside more but _StrokeCenterBiased is closer to current behavior.
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ocornut
2026-07-29 16:27:29 +02:00
parent 9aec6df4fd
commit 1c71e07fa0
1 changed files with 6 additions and 6 deletions
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12
imgui_widgets.cpp
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@@ -11056,14 +11056,14 @@ void ImGui::TabItemBackground(ImDrawList* draw_list, const ImRect& bb, ImGuiTabI
const float rounding = ImMax(0.0f, ImMin((flags & ImGuiTabItemFlags_Button) ? g.Style.FrameRounding : g.Style.TabRounding, width * 0.5f - 1.0f));
const float y1 = bb.Min.y + 1.0f; // Leave a bit of room in title bars.
const float y2 = bb.Max.y - g.Style.TabBarBorderSize;
draw_list->AddRectFilled(bb.Min, ImVec2(bb.Max.x, y2), col, rounding, ImDrawFlags_RoundCornersTop);
draw_list->AddRectFilled(ImVec2(bb.Min.x, y1), ImVec2(bb.Max.x, y2), col, rounding, ImDrawFlags_RoundCornersTop);
if (g.Style.TabBorderSize > 0.0f)
{
draw_list->PathLineTo(ImVec2(bb.Min.x + 0.5f, y2));
draw_list->PathArcToFast(ImVec2(bb.Min.x + rounding + 0.5f, y1 + rounding + 0.5f), rounding, 6, 9);
draw_list->PathArcToFast(ImVec2(bb.Max.x - rounding - 0.5f, y1 + rounding + 0.5f), rounding, 9, 12);
draw_list->PathLineTo(ImVec2(bb.Max.x - 0.5f, y2));
draw_list->PathStroke(GetColorU32(ImGuiCol_Border), g.Style.TabBorderSize);
draw_list->PathLineTo(ImVec2(bb.Min.x, y2));
draw_list->PathArcToFast(ImVec2(bb.Min.x + rounding, y1 + rounding), rounding, 6, 9);
draw_list->PathArcToFast(ImVec2(bb.Max.x - rounding, y1 + rounding), rounding, 9, 12);
draw_list->PathLineTo(ImVec2(bb.Max.x, y2));
draw_list->PathStroke(GetColorU32(ImGuiCol_Border), g.Style.TabBorderSize, ImDrawFlags_StrokeCenterBiased); // Use _StrokeInside?
}
}