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Accept dropping Styles from another I-O-M window.

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* Add archived versions of the selected Styles to the drag message.
 * If the base class didn't handle the drop message, try to unarchive
   Styles and add them via AddStylesCommand.
This commit is contained in:
Stephan Aßmus 2012-05-05 16:42:41 +02:00
parent fa39c4e9c6
commit f30d463866
2 changed files with 57 additions and 2 deletions
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57
src/apps/icon-o-matic/gui/StyleListView.cpp
View File

@ -428,9 +428,12 @@ StyleListView::MakeDragMessage(BMessage* message) const
for (int32 i = 0; i < count; i++) {
StyleListItem* item = dynamic_cast<StyleListItem*>(
ItemAt(CurrentSelection(i)));
if (item != NULL)
if (item != NULL) {
message->AddPointer("style", (void*)item->style);
else
BMessage archive;
if (item->style->Archive(&archive, true) == B_OK)
message->AddMessage("style archive", &archive);
} else
break;
}
}
@ -450,6 +453,56 @@ StyleListView::SetDropTargetRect(const BMessage* message, BPoint where)
}
bool
StyleListView::HandleDropMessage(const BMessage* message, int32 dropIndex)
{
// Let SimpleListView handle drag-sorting (when drag came from ourself)
if (SimpleListView::HandleDropMessage(message, dropIndex))
return true;
if (fCommandStack == NULL || fStyleContainer == NULL)
return false;
// Drag may have come from another instance, like in another window.
// Reconstruct the Styles from the archive and add them at the drop
// index.
int index = 0;
BList styles;
while (true) {
BMessage archive;
if (message->FindMessage("style archive", index, &archive) != B_OK)
break;
Style* style = new(std::nothrow) Style(&archive);
if (style == NULL)
break;
if (!styles.AddItem(style)) {
delete style;
break;
}
index++;
}
int32 count = styles.CountItems();
if (count == 0)
return false;
AddStylesCommand* command = new(std::nothrow) AddStylesCommand(
fStyleContainer, (Style**)styles.Items(), count, dropIndex);
if (command == NULL) {
for (int32 i = 0; i < count; i++)
delete (Style*)styles.ItemAtFast(i);
return false;
}
fCommandStack->Perform(command);
return true;
}
void
StyleListView::MoveItems(BList& items, int32 toIndex)
{

2
src/apps/icon-o-matic/gui/StyleListView.h
View File

@ -48,6 +48,8 @@ public:
const BMessage* message) const;
virtual void SetDropTargetRect(const BMessage* message,
BPoint where);
virtual bool HandleDropMessage(const BMessage* message,
int32 dropIndex);
virtual void MoveItems(BList& items, int32 toIndex);
virtual void CopyItems(BList& items, int32 toIndex);