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Added ImGuiDragDropFlags_AcceptNoPreviewTooltip flag to disable drag source tooltip from the target site (#143)

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This commit is contained in:
omar
2018-05-28 20:50:52 +02:00
parent 7fd9199a1d
commit 92b7d6bc4f
5 changed files with 19 additions and 2 deletions
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11
imgui.cpp
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@ -13145,6 +13145,7 @@ void ImGui::ClearDragDrop()
ImGuiContext& g = *GImGui;
g.DragDropActive = false;
g.DragDropPayload.Clear();
g.DragDropAcceptFlags = 0;
g.DragDropAcceptIdCurr = g.DragDropAcceptIdPrev = 0;
g.DragDropAcceptIdCurrRectSurface = FLT_MAX;
g.DragDropAcceptFrameCount = -1;
@ -13239,6 +13240,15 @@ bool ImGui::BeginDragDropSource(ImGuiDragDropFlags flags)
SetNextWindowPos(tooltip_pos);
PushStyleColor(ImGuiCol_PopupBg, GetStyleColorVec4(ImGuiCol_PopupBg) * ImVec4(1.0f, 1.0f, 1.0f, 0.6f));
BeginTooltip();
// Target can request the Source to not display its tooltip (we use a dedicated flag to make this request explicit)
// We unfortunately can't just modify the source flags and skip the call to BeginTooltip, as caller may be emitting contents.
if (g.DragDropActive && g.DragDropAcceptIdPrev && (g.DragDropAcceptFlags & ImGuiDragDropFlags_AcceptNoPreviewTooltip))
{
ImGuiWindow* tooltip_window = g.CurrentWindow;
tooltip_window->SkipItems = true;
tooltip_window->HiddenFrames = 1;
}
}
if (!(flags & ImGuiDragDropFlags_SourceNoDisableHover) && !(flags & ImGuiDragDropFlags_SourceExtern))
@ -13379,6 +13389,7 @@ const ImGuiPayload* ImGui::AcceptDragDropPayload(const char* type, ImGuiDragDrop
float r_surface = r.GetWidth() * r.GetHeight();
if (r_surface < g.DragDropAcceptIdCurrRectSurface)
{
g.DragDropAcceptFlags = flags;
g.DragDropAcceptIdCurr = g.DragDropTargetId;
g.DragDropAcceptIdCurrRectSurface = r_surface;
}