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Drag and Drop: Added a mechanism to allow widgets with no identifiers (such as Text/Image) to be used with BeginDragDropSource() given the explicit ImGuiDragDropFlags_SourceAllowNullID flag.

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omar
2017-10-29 23:10:44 +01:00
parent acf78da742
commit 0e775807b4
3 changed files with 46 additions and 2 deletions
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imgui.h
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@ -599,6 +599,7 @@ enum ImGuiDragDropFlags_
// BeginDragDropSource() flags
ImGuiDragDropFlags_SourceNoAutoTooltip = 1 << 0,
ImGuiDragDropFlags_SourceNoDisableHover = 1 << 1, // By default, when dragging we clear data so that IsItemHovered() will return true, to avoid subsequent user code submitting tooltips.
ImGuiDragDropFlags_SourceAllowNullID = 1 << 2, // Allow items such as Text(), Image() that have no unique identifier to be used as drag source, by manufacturing a temporary identifier based on their window-relative position. This is extremely unusual within the dear imgui ecosystem and so we made it explicit.
// BeginDragDropTarget() flags
ImGuiDragDropFlags_AcceptBeforeDelivery = 1 << 10, // AcceptDragDropPayload() returns true even before the mouse button is released. You can then call IsDelivery() to test if the payload needs to be delivered.
ImGuiDragDropFlags_AcceptNoDrawDefaultRect = 1 << 11, // Do not draw the default highlight rectangle when hovering over target.