* Copyright 2006-2009, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _DRAGGER_H
#define _DRAGGER_H
#include <Locker.h>
#include <List.h>
#include <View.h>
class BBitmap;
class BMessage;
class BPopUpMenu;
class BShelf;
namespace BPrivate {
struct replicant_data;
class ShelfContainerViewFilter;
};
class BDragger : public BView {
public:
BDragger(BRect frame, BView* target,
uint32 resizingMode = B_FOLLOW_NONE,
uint32 flags = B_WILL_DRAW);
BDragger(BView* target,
uint32 flags = B_WILL_DRAW);
BDragger(BMessage* data);
virtual ~BDragger();
static BArchivable* Instantiate(BMessage* data);
virtual status_t Archive(BMessage* data,
bool deep = true) const;
virtual void AttachedToWindow();
virtual void DetachedFromWindow();
virtual void Draw(BRect updateRect);
virtual void MouseDown(BPoint where);
virtual void MouseUp(BPoint where);
virtual void MouseMoved(BPoint where, uint32 transit,
const BMessage* dragMessage);
virtual void MessageReceived(BMessage* message);
virtual void FrameMoved(BPoint newPosition);
virtual void FrameResized(float newWidth, float newHeight);
static status_t ShowAllDraggers();
static status_t HideAllDraggers();
static bool AreDraggersDrawn();
virtual BHandler* ResolveSpecifier(BMessage* message,
int32 index, BMessage* specifier,
int32 form, const char* property);
virtual status_t GetSupportedSuites(BMessage* data);
virtual status_t Perform(perform_code code, void* data);
virtual void ResizeToPreferred();
virtual void GetPreferredSize(float* _width,
float* _height);
virtual void MakeFocus(bool focus = true);
virtual void AllAttached();
virtual void AllDetached();
status_t SetPopUp(BPopUpMenu* contextMenu);
BPopUpMenu* PopUp() const;
bool InShelf() const;
BView* Target() const;
virtual BBitmap* DragBitmap(BPoint* offset, drawing_mode* mode);
class Private;
protected:
bool IsVisibilityChanging() const;
private:
friend class BPrivate::ShelfContainerViewFilter;
friend struct BPrivate::replicant_data;
friend class Private;
friend class BShelf;
virtual void _ReservedDragger2();
virtual void _ReservedDragger3();
virtual void _ReservedDragger4();
static void _UpdateShowAllDraggers(bool visible);
BDragger& operator=(const BDragger& other);
void _InitData();
void _AddToList();
void _RemoveFromList();
status_t _DetermineRelationship();
status_t _SetViewToDrag(BView* target);
void _SetShelf(BShelf* shelf);
void _SetZombied(bool state);
void _BuildDefaultPopUp();
void _ShowPopUp(BView* target, BPoint where);
enum relation {
TARGET_UNKNOWN,
TARGET_IS_CHILD,
TARGET_IS_PARENT,
TARGET_IS_SIBLING
};
BView* fTarget;
relation fRelation;
BShelf* fShelf;
bool fTransition;
bool fIsZombie;
char fErrCount;
bool fPopUpIsCustom;
BBitmap* fBitmap;
BPopUpMenu* fPopUp;
uint32 _reserved[3];
};
#endif
