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Drag and Drop, Style: added basic styling options to DragDrop target rect. (#9056)

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aaronkirkham
2025-11-05 23:16:48 +00:00
committed by ocornut
parent 59db6ceeb1
commit 7954d6782e
3 changed files with 20 additions and 3 deletions
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14
imgui.cpp
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@@ -1450,6 +1450,9 @@ ImGuiStyle::ImGuiStyle()
AntiAliasedFill = true; // Enable anti-aliased filled shapes (rounded rectangles, circles, etc.).
CurveTessellationTol = 1.25f; // Tessellation tolerance when using PathBezierCurveTo() without a specific number of segments. Decrease for highly tessellated curves (higher quality, more polygons), increase to reduce quality.
CircleTessellationMaxError = 0.30f; // Maximum error (in pixels) allowed when using AddCircle()/AddCircleFilled() or drawing rounded corner rectangles with no explicit segment count specified. Decrease for higher quality but more geometry.
DragDropTargetRectRounding = 0.0f; // Corner radius of the drag-drop hover frame
DragDropTargetRectLineThickness = 2.0f; // Thickness of the drop-drop hover frame lines
DragDropTargetRectExpansionSize = 3.5f; // The size in which the drag-drop hover rect will expand over the target
// Behaviors
HoverStationaryDelay = 0.15f; // Delay for IsItemHovered(ImGuiHoveredFlags_Stationary). Time required to consider mouse stationary.
@@ -3711,6 +3714,7 @@ const char* ImGui::GetStyleColorName(ImGuiCol idx)
case ImGuiCol_TextSelectedBg: return "TextSelectedBg";
case ImGuiCol_TreeLines: return "TreeLines";
case ImGuiCol_DragDropTarget: return "DragDropTarget";
case ImGuiCol_DragDropTargetBg: return "DragDropTargetBg";
case ImGuiCol_UnsavedMarker: return "UnsavedMarker";
case ImGuiCol_NavCursor: return "NavCursor";
case ImGuiCol_NavWindowingHighlight: return "NavWindowingHighlight";
@@ -14893,7 +14897,7 @@ void ImGui::RenderDragDropTargetRectForItem(const ImRect& bb)
ImGuiWindow* window = g.CurrentWindow;
ImRect bb_display = bb;
bb_display.ClipWith(g.DragDropTargetClipRect); // Clip THEN expand so we have a way to visualize that target is not entirely visible.
bb_display.Expand(3.5f);
bb_display.Expand(g.Style.DragDropTargetRectExpansionSize);
bool push_clip_rect = !window->ClipRect.Contains(bb_display);
if (push_clip_rect)
window->DrawList->PushClipRectFullScreen();
@@ -14904,7 +14908,13 @@ void ImGui::RenderDragDropTargetRectForItem(const ImRect& bb)
void ImGui::RenderDragDropTargetRectEx(ImDrawList* draw_list, const ImRect& bb)
{
draw_list->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_DragDropTarget), 0.0f, 0, 2.0f); // FIXME-DPI
ImGuiContext& g = *GImGui;
const ImVec4& color_bg = GetStyleColorVec4(ImGuiCol_DragDropTargetBg);
if (color_bg.w > 0.0f)
draw_list->AddRectFilled(bb.Min, bb.Max, GetColorU32(color_bg), g.Style.DragDropTargetRectRounding, 0);
draw_list->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_DragDropTarget), g.Style.DragDropTargetRectRounding, 0, g.Style.DragDropTargetRectLineThickness); // FIXME-DPI
}
const ImGuiPayload* ImGui::GetDragDropPayload()