#include <CDragDropTarget.h>
|
| enum | { kDefaultIID = IID_IDRAGDROPTARGET } |
| |
Basic implementation of the IDragDropTarget interface, representing the target object that receives a drop operation. Implementors of IDragDropTarget should derive from either this or CDragDropTarget_Extensible.
- See Also
- IDragDropTarget, CDragDropTarget_Extensible
| bool16 CDragDropTarget::AffectsSameDataAsDragSource | ( | const IDragDropSource * | dragSource | ) | const |
| virtual |
Does the specified drag source operate on the same data (pub/database/whatever) as this drag target? If AffectsSameDataAsDragSource is true, then data can be "moved" between such a source and target. (Default implementation checks to see if they return the same IDatabase from GetSource/TargetDataBase())
Implements IDragDropTarget.
Override to check the available external flavors to see if this target can handle any of them. Default implementation returns DragDrop::TargetResponse(DragDrop::kWontAcceptDrop).
Implements IDragDropTarget.
Reimplemented in BscDNDDropTarget.
| virtual void CDragDropTarget::DoDragEnter | ( | | ) | |
| protectedvirtual |
| virtual void CDragDropTarget::DoDragLeave | ( | | ) | |
| protectedvirtual |
Override to handle a drag leaving the target. Default implementation does nothing.
Implements IDragDropTarget.
| virtual void CDragDropTarget::DoDragWithin | ( | const PMPoint & | localPt | ) | |
| protectedvirtual |
Override to handle a drag moving within the target. Default implementation does nothing.
Implements IDragDropTarget.
| virtual SysWireframe CDragDropTarget::DoMakeDropHiliteRegion | ( | | ) | const |
| virtual |
Override to specify a region to be hilighted to show that this target can accept the a drop. Default implementation returns DragDrop::kDefaultDropHilite, which highlights based on the bounds of the target.
Implements IDragDropTarget.
| virtual void CDragDropTarget::DrawTargetOutline | ( | | ) | |
| virtual |
Override if the targets wants to draw it's own highlight/outline feedback, it can make it available here. This method will not be called by the framework, but can be called by flavor helpers. Default implementation does nothing.
Implements IDragDropTarget.
Retrieve the target response computed in CouldAcceptTypes for later use. Response is cached by HandleCouldAcceptTypes
| virtual PMRect CDragDropTarget::GetDragDataBounds | ( | | ) | const |
| protectedvirtual |
Override to return the dragged item bounds that will be sent to the target callbacks. Default implementation returns an empty PMRect
| virtual PMMatrix CDragDropTarget::GetInternalTransform | ( | | ) | const |
| virtual |
Basic implementation to retrieve the transformation.
Implements IDragDropTarget.
| virtual IDataBase* CDragDropTarget::GetTargetDataBase | ( | | ) | const |
| virtual |
Override to specify the database that would accept the drag data received by this target. Default behavior is to return nil - which means that no drag source, other than on on the same boss as this target, is able to move data to this target so the drop represents a copy.
Implements IDragDropTarget.
Framework use only. Subclasses should not call or override these methods - see protected variants.
Reimplemented in CDragDropTarget_Extensible.
| virtual PMRect CDragDropTarget::HandleGetDragDataBounds | ( | | ) | const |
| protectedvirtual |
| virtual bool16 CDragDropTarget::HitTest_OutsideBounds | ( | const SysPoint & | | ) | const |
| virtual |
Override to allow drop targets to respond outside their actual bounds. Typically used for autoscrolling a target when over its scroll bars. Default implementation does not support this and returns kFalse.
Implements IDragDropTarget.
| virtual bool16 CDragDropTarget::IsTargetModifiable | ( | | ) | const |
| virtual |
Override if a target could be viewing "read-only" data. Default is kTrue (target is modifiable).
Implements IDragDropTarget.
Default implementation to call any target callbacks registered for this target. Called from HandleDoDragEnter/Within/Leave just after calling DoDragEnter/Within/Leave.
| virtual void CDragDropTarget::PrepareTargetForDrag | ( | | ) | |
| protectedvirtual |
Override if the target needs a chance to initialize itself prior to a drag operation entering the target. Called from HandleCouldAcceptTypes. Default implementation does nothing.
Reimplemented in CDragDropTarget_Extensible.
Override to look for non-widget targets inside this target. Default implementation does not support this and returns nil.
Implements IDragDropTarget.
Basic implementation to register a target callback.
Implements IDragDropTarget.
Basic implementation to release a target callback.
Implements IDragDropTarget.
| virtual void CDragDropTarget::ResetActiveContext | ( | | ) | |
| virtual |
Override to clear target specific context. Default implementation does not support this.
| bool16 CDragDropTarget::SameAsDragSource | ( | const IDragDropSource * | dragSource | ) | const |
| virtual |
Is the specified drag source equivalent to this drag target? Default implementation checks to see if the source is on the same boss as this target.
Implements IDragDropTarget.
| virtual void CDragDropTarget::SetActiveContext | ( | | ) | |
| virtual |
Override to allow a target specific context (like IID_IDRAGDROPTARGETDOCUMENT) to be set. Default implementation does not support this.
| virtual void CDragDropTarget::SetDocument | ( | IDocument * | | ) | |
| virtual |
Override to support setting of the target's document. Default implementation does not support this
Implements IDragDropTarget.
| virtual void CDragDropTarget::SetInternalTransform | ( | PMMatrix | | ) | |
| virtual |
Basic implementation to remember the transformation.
Implements IDragDropTarget.
Public Types inherited from IDragDropTarget
1.8.3.1 
