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Tables: draw outer border before inner borders.

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ocornut 2026-11-02 16:31:32 +01:00
parent 852269e25f
commit c5131aff7e
1 changed files with 27 additions and 27 deletions
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54
imgui_tables.cpp
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@ -2966,6 +2966,33 @@ void ImGui::TableDrawBorders(ImGuiTable* table)
const float border_size_inner = table->BorderSize;
const float draw_y2_limit = table->OuterWindow->ClipRect.Max.y + (2.0f * ImMax(border_size_outer_h, inner_drawlist->_FringeScale));
// Draw outer border
if (table->Flags & ImGuiTableFlags_BordersOuter)
{
// Display outer border offset by 1 which is a simple way to display it without adding an extra draw call
// (Without the offset, in outer_window it would be rendered behind cells, because child windows are above their
// parent. In inner_window, it won't reach out over scrollbars. Another weird solution would be to display part
// of it in inner window, and the part that's over scrollbars in the outer window..)
// Either solution currently won't allow us to use a larger border size: the border would clipped.
ImRect outer_border = table->OuterRect;
outer_border.Max.y = ImMin(outer_border.Max.y, draw_y2_limit); // Clamp but keep bottom border non-visible.
const ImU32 outer_col = table->BorderColorStrong;
if ((table->Flags & ImGuiTableFlags_BordersOuter) == ImGuiTableFlags_BordersOuter)
{
inner_drawlist->AddRect(outer_border.Min, outer_border.Max, outer_col, 0.0f, border_size_outer_w);
}
else if (table->Flags & ImGuiTableFlags_BordersOuterV)
{
inner_drawlist->AddLineV(outer_border.Min.x, outer_border.Min.y, outer_border.Max.y, outer_col, border_size_outer_w);
inner_drawlist->AddLineV(outer_border.Max.x - border_size_outer_w, outer_border.Min.y, outer_border.Max.y, outer_col, border_size_outer_w);
}
else if (table->Flags & ImGuiTableFlags_BordersOuterH)
{
inner_drawlist->AddLineH(outer_border.Min.x, outer_border.Max.x, outer_border.Min.y, outer_col, border_size_outer_h);
inner_drawlist->AddLineH(outer_border.Min.x, outer_border.Max.x, outer_border.Max.y - border_size_outer_h, outer_col, border_size_outer_h);
}
}
// Draw inner border and resizing feedback
ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
const float draw_y1 = ImMax(table->InnerRect.Min.y, (table->FreezeRowsCount >= 1 ? table->InnerRect.Min.y : table->WorkRect.Min.y) + table->AngledHeadersHeight) + ((table->Flags & ImGuiTableFlags_BordersOuterH) ? border_size_outer_h : 0.0f);
@ -3008,33 +3035,6 @@ void ImGui::TableDrawBorders(ImGuiTable* table)
}
}
// Draw outer border
// FIXME: could use AddRect or explicit VLine/HLine helper?
if (table->Flags & ImGuiTableFlags_BordersOuter)
{
// Display outer border offset by 1 which is a simple way to display it without adding an extra draw call
// (Without the offset, in outer_window it would be rendered behind cells, because child windows are above their
// parent. In inner_window, it won't reach out over scrollbars. Another weird solution would be to display part
// of it in inner window, and the part that's over scrollbars in the outer window..)
// Either solution currently won't allow us to use a larger border size: the border would clipped.
ImRect outer_border = table->OuterRect;
outer_border.Max.y = ImMin(outer_border.Max.y, draw_y2_limit); // Clamp but keep bottom border non-visible.
const ImU32 outer_col = table->BorderColorStrong;
if ((table->Flags & ImGuiTableFlags_BordersOuter) == ImGuiTableFlags_BordersOuter)
{
inner_drawlist->AddRect(outer_border.Min, outer_border.Max, outer_col, 0.0f, border_size_outer_w);
}
else if (table->Flags & ImGuiTableFlags_BordersOuterV)
{
inner_drawlist->AddLineV(outer_border.Min.x, outer_border.Min.y, outer_border.Max.y, outer_col, border_size_outer_w);
inner_drawlist->AddLineV(outer_border.Max.x - border_size_outer_w, outer_border.Min.y, outer_border.Max.y, outer_col, border_size_outer_w);
}
else if (table->Flags & ImGuiTableFlags_BordersOuterH)
{
inner_drawlist->AddLineH(outer_border.Min.x, outer_border.Max.x, outer_border.Min.y, outer_col, border_size_outer_h);
inner_drawlist->AddLineH(outer_border.Min.x, outer_border.Max.x, outer_border.Max.y - border_size_outer_h, outer_col, border_size_outer_h);
}
}
if ((table->Flags & ImGuiTableFlags_BordersInnerH) && table->RowPosY2 < table->OuterRect.Max.y)
{
// Draw bottom-most row border between it and above outer border.