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Drag and Drop: Fix unintended fallback "..." tooltip during drag operation when drag source uses _SourceNoPreviewTooltip flags. (#3160)

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This commit is contained in:
Rokas Kupstys 2020-04-27 12:01:59 +03:00 committed by omar
parent 73c30aa085
commit 2593b6a1c8
3 changed files with 5 additions and 2 deletions
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2
docs/CHANGELOG.txt
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@ -51,6 +51,8 @@ Other Changes:
projection matrix top and bottom values. (#3143, #3146) [@u3shit]
- Backends: Vulkan: Fixed edge case where render callbacks wouldn't be called if the ImDrawData
structure didn't have any vertices. (#2697) [@kudaba]
- Drag and Drop: Fixed unintended fallback "..." tooltip display during drag operation when
drag source uses _SourceNoPreviewTooltip flags. (#3160) [@rokups]
-----------------------------------------------------------------------

2
imgui.cpp
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@ -4216,7 +4216,7 @@ void ImGui::EndFrame()
}
// Drag and Drop: Fallback for source tooltip. This is not ideal but better than nothing.
if (g.DragDropActive && g.DragDropSourceFrameCount < g.FrameCount)
if (g.DragDropActive && g.DragDropSourceFrameCount < g.FrameCount && !(g.DragDropSourceFlags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
{
g.DragDropWithinSource = true;
SetTooltip("...");

1
imgui.h
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@ -644,6 +644,7 @@ namespace ImGui
// Drag and Drop
// - [BETA API] API may evolve!
// - If you stop calling BeginDragDropSource() the payload is preserved however it won't have a preview tooltip (we currently display a fallback "..." tooltip as replacement)
IMGUI_API bool BeginDragDropSource(ImGuiDragDropFlags flags = 0); // call when the current item is active. If this return true, you can call SetDragDropPayload() + EndDragDropSource()
IMGUI_API bool SetDragDropPayload(const char* type, const void* data, size_t sz, ImGuiCond cond = 0); // type is a user defined string of maximum 32 characters. Strings starting with '_' are reserved for dear imgui internal types. Data is copied and held by imgui.
IMGUI_API void EndDragDropSource(); // only call EndDragDropSource() if BeginDragDropSource() returns true!