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hub / github.com/XJTU-Graphics/dandelion / TabItemBackground

Method TabItemBackground

deps/imgui/imgui_widgets.cpp:10603–10626  ·  view source on GitHub ↗

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10601}
10602
10603void ImGui::TabItemBackground(ImDrawList* draw_list, const ImRect& bb, ImGuiTabItemFlags flags, ImU32 col)
10604{
10605 // While rendering tabs, we trim 1 pixel off the top of our bounding box so they can fit within a regular frame height while looking "detached" from it.
10606 ImGuiContext& g = *GImGui;
10607 const float width = bb.GetWidth();
10608 IM_UNUSED(flags);
10609 IM_ASSERT(width > 0.0f);
10610 const float rounding = ImMax(0.0f, ImMin((flags & ImGuiTabItemFlags_Button) ? g.Style.FrameRounding : g.Style.TabRounding, width * 0.5f - 1.0f));
10611 const float y1 = bb.Min.y + 1.0f;
10612 const float y2 = bb.Max.y - g.Style.TabBarBorderSize;
10613 draw_list->PathLineTo(ImVec2(bb.Min.x, y2));
10614 draw_list->PathArcToFast(ImVec2(bb.Min.x + rounding, y1 + rounding), rounding, 6, 9);
10615 draw_list->PathArcToFast(ImVec2(bb.Max.x - rounding, y1 + rounding), rounding, 9, 12);
10616 draw_list->PathLineTo(ImVec2(bb.Max.x, y2));
10617 draw_list->PathFillConvex(col);
10618 if (g.Style.TabBorderSize > 0.0f)
10619 {
10620 draw_list->PathLineTo(ImVec2(bb.Min.x + 0.5f, y2));
10621 draw_list->PathArcToFast(ImVec2(bb.Min.x + rounding + 0.5f, y1 + rounding + 0.5f), rounding, 6, 9);
10622 draw_list->PathArcToFast(ImVec2(bb.Max.x - rounding - 0.5f, y1 + rounding + 0.5f), rounding, 9, 12);
10623 draw_list->PathLineTo(ImVec2(bb.Max.x - 0.5f, y2));
10624 draw_list->PathStroke(GetColorU32(ImGuiCol_Border), 0, g.Style.TabBorderSize);
10625 }
10626}
10627
10628// Render text label (with custom clipping) + Unsaved Document marker + Close Button logic
10629// We tend to lock style.FramePadding for a given tab-bar, hence the 'frame_padding' parameter.

Callers

nothing calls this directly

Calls 7

ImMaxFunction · 0.85
ImMinFunction · 0.85
ImVec2Function · 0.85
PathLineToMethod · 0.80
PathArcToFastMethod · 0.80
PathFillConvexMethod · 0.80
PathStrokeMethod · 0.80

Tested by

no test coverage detected