wxWidgets/include/wx/osx/cocoa/dataview.h
Vadim Zeitlin 3f66f6a5b3 Remove all lines containing cvs/svn "$Id$" keyword.
This keyword is not expanded by Git which means it's not replaced with the
correct revision value in the releases made using git-based scripts and it's
confusing to have lines with unexpanded "$Id$" in the released files. As
expanding them with Git is not that simple (it could be done with git archive
and export-subst attribute) and there are not many benefits in having them in
the first place, just remove all these lines.

If nothing else, this will make an eventual transition to Git simpler.

Closes #14487.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2013-07-26 16:02:46 +00:00

519 lines
17 KiB
Objective-C

/////////////////////////////////////////////////////////////////////////////
// Name: wx/osx/cocoa/dataview.h
// Purpose: wxDataViewCtrl native implementation header for carbon
// Author:
// Copyright: (c) 2009
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_DATAVIEWCTRL_COCOOA_H_
#define _WX_DATAVIEWCTRL_COCOOA_H_
#include "wx/defs.h"
#import <Cocoa/Cocoa.h>
#include "wx/osx/core/dataview.h"
#include "wx/osx/private.h"
// Forward declaration
class wxCocoaDataViewControl;
/*
Dramatis personae:
[vertical arrows indicate inheritance, horizontal -- aggregation]
wxWindow ---> wxWidgetCocoaImpl wxDataViewWidgetImpl NSOutlineView
| \ / |
| \ / |
| \ / |
v \/ \/ v
wxDataViewCtrl -------> wxCocoaDataViewControl <-------> wxCocoaOutlineView
The right most classes are Objective-C only and can't be used from (pure)
C++ code.
*/
// ============================================================================
// wxPointerObject: simply stores a pointer, without taking its ownership
// ============================================================================
// Two pointer objects are equal if the containing pointers are equal. This
// means also that the hash value of a pointer object depends only on the
// stored pointer.
@interface wxPointerObject : NSObject
{
void* pointer;
}
-(id) initWithPointer:(void*)initPointer;
-(void*) pointer;
-(void) setPointer:(void*)newPointer;
@end
// ============================================================================
// wxSortDescriptorObject: helper class to use native sorting facilities
// ============================================================================
@interface wxSortDescriptorObject : NSSortDescriptor<NSCopying>
{
wxDataViewColumn* columnPtr; // pointer to the sorting column
wxDataViewModel* modelPtr; // pointer to model
}
-(id)
initWithModelPtr:(wxDataViewModel*)initModelPtr
sortingColumnPtr:(wxDataViewColumn*)initColumnPtr
ascending:(BOOL)sortAscending;
-(wxDataViewColumn*) columnPtr;
-(wxDataViewModel*) modelPtr;
-(void) setColumnPtr:(wxDataViewColumn*)newColumnPtr;
-(void) setModelPtr:(wxDataViewModel*)newModelPtr;
@end
// ============================================================================
// wxDataViewColumnNativeData: extra data for wxDataViewColumn
// ============================================================================
class wxDataViewColumnNativeData
{
public:
wxDataViewColumnNativeData() : m_NativeColumnPtr(NULL)
{
}
wxDataViewColumnNativeData(NSTableColumn* initNativeColumnPtr)
: m_NativeColumnPtr(initNativeColumnPtr)
{
}
NSTableColumn* GetNativeColumnPtr() const
{
return m_NativeColumnPtr;
}
void SetNativeColumnPtr(NSTableColumn* newNativeColumnPtr)
{
m_NativeColumnPtr = newNativeColumnPtr;
}
private:
// not owned by us
NSTableColumn* m_NativeColumnPtr;
};
// ============================================================================
// wxDataViewRendererNativeData: extra data for wxDataViewRenderer
// ============================================================================
class wxDataViewRendererNativeData
{
public:
wxDataViewRendererNativeData()
: m_Object(NULL), m_ColumnCell(NULL)
{
Init();
}
wxDataViewRendererNativeData(NSCell* initColumnCell)
: m_Object(NULL), m_ColumnCell([initColumnCell retain])
{
Init();
}
wxDataViewRendererNativeData(NSCell* initColumnCell, id initObject)
: m_Object([initObject retain]), m_ColumnCell([initColumnCell retain])
{
Init();
}
~wxDataViewRendererNativeData()
{
[m_ColumnCell release];
[m_Object release];
[m_origFont release];
[m_origTextColour release];
}
NSCell* GetColumnCell() const { return m_ColumnCell; }
NSTableColumn* GetColumnPtr() const { return m_TableColumnPtr; }
id GetItem() const { return m_Item; }
NSCell* GetItemCell() const { return m_ItemCell; }
id GetObject() const { return m_Object; }
void SetColumnCell(NSCell* newCell)
{
[newCell retain];
[m_ColumnCell release];
m_ColumnCell = newCell;
}
void SetColumnPtr(NSTableColumn* newColumnPtr)
{
m_TableColumnPtr = newColumnPtr;
}
void SetItem(id newItem)
{
m_Item = newItem;
}
void SetItemCell(NSCell* newCell)
{
m_ItemCell = newCell;
}
void SetObject(id newObject)
{
[newObject retain];
[m_Object release];
m_Object = newObject;
}
// The original cell font and text colour stored here are NULL by default
// and are only initialized to the values retrieved from the cell when we
// change them from wxCocoaOutlineView:willDisplayCell:forTableColumn:item:
// which calls our SaveOriginalXXX() methods before changing the cell
// attributes.
//
// This allows us to avoid doing anything for the columns without any
// attributes but still be able to restore the correct attributes for the
// ones that do.
NSFont *GetOriginalFont() const { return m_origFont; }
NSColor *GetOriginalTextColour() const { return m_origTextColour; }
void SaveOriginalFont(NSFont *font)
{
m_origFont = [font retain];
}
void SaveOriginalTextColour(NSColor *textColour)
{
m_origTextColour = [textColour retain];
}
// The ellipsization mode which we need to set for each cell being rendered.
void SetEllipsizeMode(wxEllipsizeMode mode) { m_ellipsizeMode = mode; }
wxEllipsizeMode GetEllipsizeMode() const { return m_ellipsizeMode; }
// Set the line break mode for the given cell using our m_ellipsizeMode
void ApplyLineBreakMode(NSCell *cell);
private:
// common part of all ctors
void Init();
id m_Item; // item NOT owned by renderer
// object that can be used by renderer for storing special data (owned by
// renderer)
id m_Object;
NSCell* m_ColumnCell; // column's cell is owned by renderer
NSCell* m_ItemCell; // item's cell is NOT owned by renderer
NSTableColumn* m_TableColumnPtr; // column NOT owned by renderer
// we own those if they're non-NULL
NSFont *m_origFont;
NSColor *m_origTextColour;
wxEllipsizeMode m_ellipsizeMode;
};
// ============================================================================
// wxCocoaOutlineDataSource
// ============================================================================
// This class implements the data source delegate for the outline view.
// As only an informal protocol exists this class inherits from NSObject only.
//
// As mentioned in the documentation for NSOutlineView the native control does
// not own any data. Therefore, it has to be done by the data source.
// Unfortunately, wxWidget's data source is a C++ data source but
// NSOutlineDataSource requires objects as data. Therefore, the data (or better
// the native item objects) have to be stored additionally in the native data
// source.
// NSOutlineView requires quick access to the item objects and quick linear
// access to an item's children. This requires normally a hash type of storage
// for the item object itself and an array structure for each item's children.
// This means that basically two times the whole structure of wxWidget's model
// class has to be stored.
// This implementation is using a compromise: all items that are in use by the
// control are stored in a set (from there they can be easily retrieved) and
// owned by the set. Furthermore, children of the last parent are stored
// in a linear list.
//
@interface wxCocoaOutlineDataSource : NSObject wxOSX_10_6_AND_LATER(<NSOutlineViewDataSource>)
{
// descriptors specifying the sorting (currently the array only holds one
// object only)
NSArray* sortDescriptors;
NSMutableArray* children; // buffered children
NSMutableSet* items; // stores all items that are in use by the control
wxCocoaDataViewControl* implementation;
wxDataViewModel* model;
// parent of the buffered children; the object is owned
wxPointerObject* currentParentItem;
}
// methods of informal protocol:
-(BOOL)
outlineView:(NSOutlineView*)outlineView
acceptDrop:(id<NSDraggingInfo>)info
item:(id)item
childIndex:(NSInteger)index;
-(id)
outlineView:(NSOutlineView*)outlineView
child:(NSInteger)index
ofItem:(id)item;
-(id)
outlineView:(NSOutlineView*)outlineView
objectValueForTableColumn:(NSTableColumn*)tableColumn
byItem:(id)item;
-(BOOL)
outlineView:(NSOutlineView*)outlineView
isItemExpandable:(id)item;
-(NSInteger)
outlineView:(NSOutlineView*)outlineView
numberOfChildrenOfItem:(id)item;
-(NSDragOperation)
outlineView:(NSOutlineView*)outlineView
validateDrop:(id<NSDraggingInfo>)info
proposedItem:(id)item
proposedChildIndex:(NSInteger)index;
-(BOOL)
outlineView:(NSOutlineView*)outlineView
writeItems:(NSArray*)items
toPasteboard:(NSPasteboard*)pasteboard;
// buffer for items handling
-(void) addToBuffer:(wxPointerObject*)item;
-(void) clearBuffer;
// returns the item in the buffer that has got the same pointer as "item",
// if such an item does not exist nil is returned
-(wxPointerObject*) getDataViewItemFromBuffer:(const wxDataViewItem&)item;
-(wxPointerObject*) getItemFromBuffer:(wxPointerObject*)item;
-(BOOL) isInBuffer:(wxPointerObject*)item;
-(void) removeFromBuffer:(wxPointerObject*)item;
// buffered children handling
-(void) appendChild:(wxPointerObject*)item;
-(void) clearChildren;
-(wxPointerObject*) getChild:(NSUInteger)index;
-(NSUInteger) getChildCount;
-(void) removeChild:(NSUInteger)index;
// buffer handling
-(void) clearBuffers;
// sorting
-(NSArray*) sortDescriptors;
-(void) setSortDescriptors:(NSArray*)newSortDescriptors;
// access to wxWidgets variables
-(wxPointerObject*) currentParentItem;
-(wxCocoaDataViewControl*) implementation;
-(wxDataViewModel*) model;
-(void) setCurrentParentItem:(wxPointerObject*)newCurrentParentItem;
-(void) setImplementation:(wxCocoaDataViewControl*)newImplementation;
-(void) setModel:(wxDataViewModel*)newModel;
// other methods
-(void)
bufferItem:(wxPointerObject*)parentItem
withChildren:(wxDataViewItemArray*)dataViewChildrenPtr;
@end
// ============================================================================
// wxCustomCell: used for custom renderers
// ============================================================================
@interface wxCustomCell : NSTextFieldCell
{
}
-(NSSize) cellSize;
@end
// ============================================================================
// wxImageTextCell
// ============================================================================
//
// As the native cocoa environment does not have a cell displaying an icon/
// image and text at the same time, it has to be implemented by the user.
// This implementation follows the implementation of Chuck Pisula in Apple's
// DragNDropOutline sample application.
// Although in wxDataViewCtrl icons are used on OSX icons do not exist for
// display. Therefore, the cell is also called wxImageTextCell.
// Instead of displaying images of any size (which is possible) this cell uses
// a fixed size for displaying the image. Larger images are scaled to fit
// into their reserved space. Smaller or not existing images use the fixed
// reserved size and are scaled if necessary.
//
@interface wxImageTextCell : NSTextFieldCell
{
@private
CGFloat xImageShift; // shift for the image in x-direction from border
CGFloat spaceImageText; // space between image and text
NSImage* image; // the image itself
NSSize imageSize; // largest size of the image; default size is (16, 16)
// the text alignment is used to align the whole cell (image and text)
NSTextAlignment cellAlignment;
}
-(NSTextAlignment) alignment;
-(void) setAlignment:(NSTextAlignment)newAlignment;
-(NSImage*) image;
-(void) setImage:(NSImage*)newImage;
-(NSSize) imageSize;
-(void) setImageSize:(NSSize) newImageSize;
-(NSSize) cellSize;
@end
// ============================================================================
// wxCocoaOutlineView
// ============================================================================
@interface wxCocoaOutlineView : NSOutlineView wxOSX_10_6_AND_LATER(<NSOutlineViewDelegate>)
{
@private
// column and row of the cell being edited or -1 if none
int currentlyEditedColumn,
currentlyEditedRow;
wxCocoaDataViewControl* implementation;
}
-(wxCocoaDataViewControl*) implementation;
-(void) setImplementation:(wxCocoaDataViewControl*) newImplementation;
@end
// ============================================================================
// wxCocoaDataViewControl
// ============================================================================
// This is the internal interface class between wxDataViewCtrl (wxWidget) and
// the native source view (Mac OS X cocoa).
class wxCocoaDataViewControl : public wxWidgetCocoaImpl,
public wxDataViewWidgetImpl
{
public:
// constructors / destructor
wxCocoaDataViewControl(wxWindow* peer,
const wxPoint& pos,
const wxSize& size,
long style);
virtual ~wxCocoaDataViewControl();
wxDataViewCtrl* GetDataViewCtrl() const
{
return static_cast<wxDataViewCtrl*>(GetWXPeer());
}
// column related methods (inherited from wxDataViewWidgetImpl)
virtual bool ClearColumns();
virtual bool DeleteColumn(wxDataViewColumn* columnPtr);
virtual void DoSetExpanderColumn(wxDataViewColumn const* columnPtr);
virtual wxDataViewColumn* GetColumn(unsigned int pos) const;
virtual int GetColumnPosition(wxDataViewColumn const* columnPtr) const;
virtual bool InsertColumn(unsigned int pos, wxDataViewColumn* columnPtr);
virtual void FitColumnWidthToContent(unsigned int pos);
// item related methods (inherited from wxDataViewWidgetImpl)
virtual bool Add(const wxDataViewItem& parent, const wxDataViewItem& item);
virtual bool Add(const wxDataViewItem& parent,
const wxDataViewItemArray& items);
virtual void Collapse(const wxDataViewItem& item);
virtual void EnsureVisible(const wxDataViewItem& item,
wxDataViewColumn const* columnPtr);
virtual void Expand(const wxDataViewItem& item);
virtual unsigned int GetCount() const;
virtual wxRect GetRectangle(const wxDataViewItem& item,
wxDataViewColumn const* columnPtr);
virtual bool IsExpanded(const wxDataViewItem& item) const;
virtual bool Reload();
virtual bool Remove(const wxDataViewItem& parent,
const wxDataViewItem& item);
virtual bool Remove(const wxDataViewItem& parent,
const wxDataViewItemArray& item);
virtual bool Update(const wxDataViewColumn* columnPtr);
virtual bool Update(const wxDataViewItem& parent,
const wxDataViewItem& item);
virtual bool Update(const wxDataViewItem& parent,
const wxDataViewItemArray& items);
// model related methods
virtual bool AssociateModel(wxDataViewModel* model);
//
// selection related methods (inherited from wxDataViewWidgetImpl)
//
virtual wxDataViewItem GetCurrentItem() const;
virtual void SetCurrentItem(const wxDataViewItem& item);
virtual wxDataViewColumn *GetCurrentColumn() const;
virtual int GetSelectedItemsCount() const;
virtual int GetSelections(wxDataViewItemArray& sel) const;
virtual bool IsSelected(const wxDataViewItem& item) const;
virtual void Select(const wxDataViewItem& item);
virtual void SelectAll();
virtual void Unselect(const wxDataViewItem& item);
virtual void UnselectAll();
//
// sorting related methods
//
virtual wxDataViewColumn* GetSortingColumn () const;
virtual void Resort();
//
// other methods (inherited from wxDataViewWidgetImpl)
//
virtual void DoSetIndent(int indent);
virtual void HitTest(const wxPoint& point,
wxDataViewItem& item,
wxDataViewColumn*& columnPtr) const;
virtual void SetRowHeight(const wxDataViewItem& item, unsigned int height);
virtual void OnSize();
virtual void StartEditor( const wxDataViewItem & item, unsigned int column );
// drag & drop helper methods
wxDataFormat GetDnDDataFormat(wxDataObjectComposite* dataObjects);
wxDataObjectComposite* GetDnDDataObjects(NSData* dataObject) const;
// Cocoa-specific helpers
id GetItemAtRow(int row) const;
private:
void InitOutlineView(long style);
wxCocoaOutlineDataSource* m_DataSource;
wxCocoaOutlineView* m_OutlineView;
};
#endif // _WX_DATAVIEWCTRL_COCOOA_H_