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Drag and Drop: tweaked BeginDragDropSource() to remove indent. Added debug log.

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This commit is contained in:
ocornut 2024-05-29 18:27:04 +02:00
parent 661c388515
commit 97a1111b94
1 changed files with 39 additions and 36 deletions
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75
imgui.cpp
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@ -13096,6 +13096,8 @@ bool ImGui::IsDragDropActive()
void ImGui::ClearDragDrop()
{
ImGuiContext& g = *GImGui;
if (g.DragDropActive)
IMGUI_DEBUG_LOG_ACTIVEID("[dragdrop] ClearDragDrop()\n");
g.DragDropActive = false;
g.DragDropPayload.Clear();
g.DragDropAcceptFlags = ImGuiDragDropFlags_None;
@ -13134,7 +13136,7 @@ bool ImGui::BeginDragDropSource(ImGuiDragDropFlags flags)
bool source_drag_active = false;
ImGuiID source_id = 0;
ImGuiID source_parent_id = 0;
if (!(flags & ImGuiDragDropFlags_SourceExtern))
if ((flags & ImGuiDragDropFlags_SourceExtern) == 0)
{
source_id = g.LastItemData.ID;
if (source_id != 0)
@ -13196,43 +13198,44 @@ bool ImGui::BeginDragDropSource(ImGuiDragDropFlags flags)
}
IM_ASSERT(g.DragDropWithinTarget == false); // Can't nest BeginDragDropSource() and BeginDragDropTarget()
if (source_drag_active)
if (!source_drag_active)
return false;
// Activate drag and drop
if (!g.DragDropActive)
{
if (!g.DragDropActive)
{
IM_ASSERT(source_id != 0);
ClearDragDrop();
ImGuiPayload& payload = g.DragDropPayload;
payload.SourceId = source_id;
payload.SourceParentId = source_parent_id;
g.DragDropActive = true;
g.DragDropSourceFlags = flags;
g.DragDropMouseButton = mouse_button;
if (payload.SourceId == g.ActiveId)
g.ActiveIdNoClearOnFocusLoss = true;
}
g.DragDropSourceFrameCount = g.FrameCount;
g.DragDropWithinSource = true;
if (!(flags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
{
// 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.
bool ret;
if (g.DragDropAcceptIdPrev && (g.DragDropAcceptFlags & ImGuiDragDropFlags_AcceptNoPreviewTooltip))
ret = BeginTooltipHidden();
else
ret = BeginTooltip();
IM_ASSERT(ret); // FIXME-NEWBEGIN: If this ever becomes false, we need to Begin("##Hidden", NULL, ImGuiWindowFlags_NoSavedSettings) + SetWindowHiddendAndSkipItemsForCurrentFrame().
IM_UNUSED(ret);
}
if (!(flags & ImGuiDragDropFlags_SourceNoDisableHover) && !(flags & ImGuiDragDropFlags_SourceExtern))
g.LastItemData.StatusFlags &= ~ImGuiItemStatusFlags_HoveredRect;
return true;
IM_ASSERT(source_id != 0);
ClearDragDrop();
IMGUI_DEBUG_LOG_ACTIVEID("[dragdrop] BeginDragDropSource() DragDropActive = true, source_id = %08X\n", source_id);
ImGuiPayload& payload = g.DragDropPayload;
payload.SourceId = source_id;
payload.SourceParentId = source_parent_id;
g.DragDropActive = true;
g.DragDropSourceFlags = flags;
g.DragDropMouseButton = mouse_button;
if (payload.SourceId == g.ActiveId)
g.ActiveIdNoClearOnFocusLoss = true;
}
return false;
g.DragDropSourceFrameCount = g.FrameCount;
g.DragDropWithinSource = true;
if (!(flags & ImGuiDragDropFlags_SourceNoPreviewTooltip))
{
// 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.
bool ret;
if (g.DragDropAcceptIdPrev && (g.DragDropAcceptFlags & ImGuiDragDropFlags_AcceptNoPreviewTooltip))
ret = BeginTooltipHidden();
else
ret = BeginTooltip();
IM_ASSERT(ret); // FIXME-NEWBEGIN: If this ever becomes false, we need to Begin("##Hidden", NULL, ImGuiWindowFlags_NoSavedSettings) + SetWindowHiddendAndSkipItemsForCurrentFrame().
IM_UNUSED(ret);
}
if (!(flags & ImGuiDragDropFlags_SourceNoDisableHover) && !(flags & ImGuiDragDropFlags_SourceExtern))
g.LastItemData.StatusFlags &= ~ImGuiItemStatusFlags_HoveredRect;
return true;
}
void ImGui::EndDragDropSource()