* Copyright 2011, Axel Dörfler, axeld@pinc-software.de.
* Distributed under the terms of the MIT License.
*/
#ifndef GROUP_LIST_VIEW_H
#define GROUP_LIST_VIEW_H
#include <GroupView.h>
#include <Roster.h>
class GroupListModel {
public:
virtual int32 CountItems() = 0;
virtual void* ItemAt(int32 index) = 0;
virtual int32 CountGroups() = 0;
virtual void* GroupAt(int32 index) = 0;
virtual void* GroupForItemAt(int32 index) = 0;
};
class ListItemRenderer {
public:
virtual void SetTo(BView* owner, void* item) = 0;
virtual BSize MinSize() = 0;
virtual BSize MaxSize() = 0;
virtual BSize PreferredSize() = 0;
virtual void Draw(BView* owner, BRect frame, int32 index,
bool selected) = 0;
};
class GroupListView : public BView {
public:
GroupListView(const char* name,
GroupListModel* model = NULL,
enum orientation orientation = B_VERTICAL,
float spacing = 0);
virtual ~GroupListView();
GroupListModel* Model() const
{ return fModel; }
virtual void SetModel(GroupListModel* model);
ListItemRenderer* ItemRenderer() const
{ return fItemRenderer; }
virtual void SetItemRenderer(ListItemRenderer* renderer);
ListItemRenderer* GroupRenderer() const
{ return fGroupRenderer; }
virtual void SetGroupRenderer(ListItemRenderer* renderer);
BMessage* SelectionMessage() const
{ return fSelectionMessage; }
virtual void SetSelectionMessage(BMessage* message,
BMessenger target);
virtual void AttachedToWindow();
virtual void MessageReceived(BMessage* message);
virtual void MouseDown(BPoint point);
virtual void Draw(BRect updateRect);
private:
void _Draw(BLayoutItem* item, BRect updateRect);
BLayoutItem* _ItemAt(BLayoutItem* item, BPoint point);
private:
GroupListModel* fModel;
ListItemRenderer* fItemRenderer;
ListItemRenderer* fGroupRenderer;
BMessage* fSelectionMessage;
BMessenger fSelectionTarget;
};
#endif
