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Made drag source tooltip display at the same position as a regular tooltip to avoid discontinuity where dynamically swapping tooltip at the target site. Made drag source tooltip override previous tooltip if any. (#1739, #143).

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This commit is contained in:
omar 2018-05-28 21:05:08 +02:00
parent 92b7d6bc4f
commit 3218666fb9
1 changed files with 2 additions and 14 deletions
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16
imgui.cpp
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@ -13230,16 +13230,8 @@ bool ImGui::BeginDragDropSource(ImGuiDragDropFlags flags)
if (!(flags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
{
// FIXME-DRAG
//SetNextWindowPos(g.IO.MousePos - g.ActiveIdClickOffset - g.Style.WindowPadding);
//PushStyleVar(ImGuiStyleVar_Alpha, g.Style.Alpha * 0.60f); // This is better but e.g ColorButton with checkboard has issue with transparent colors :(
// The default tooltip position is a little offset to give space to see the context menu (it's also clamped within the current viewport/monitor)
// In the context of a dragging tooltip we try to reduce that offset and we enforce following the cursor.
ImVec2 tooltip_pos = g.IO.MousePos + ImVec2(16 * g.Style.MouseCursorScale, 8 * g.Style.MouseCursorScale);
SetNextWindowPos(tooltip_pos);
PushStyleColor(ImGuiCol_PopupBg, GetStyleColorVec4(ImGuiCol_PopupBg) * ImVec4(1.0f, 1.0f, 1.0f, 0.6f));
BeginTooltip();
SetNextWindowBgAlpha(g.Style.Colors[ImGuiCol_PopupBg].w * 0.60f);
BeginTooltipEx(0, true);
// 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.
@ -13265,11 +13257,7 @@ void ImGui::EndDragDropSource()
IM_ASSERT(g.DragDropActive);
if (!(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
{
EndTooltip();
PopStyleColor();
//PopStyleVar();
}
// Discard the drag if have not called SetDragDropPayload()
if (g.DragDropPayload.DataFrameCount == -1)