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/** <title>NSImageView</title>
Copyright (C) 1996 Free Software Foundation, Inc.
Author: Ovidiu Predescu <ovidiu@net-community.com>
Date: January 1998
Updated by: Jonathan Gapen <jagapen@smithlab.chem.wisc.edu>
Date: May 1999
This file is part of the GNUstep GUI Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA.
*/
#include <AppKit/NSDragging.h>
#include <AppKit/NSImageCell.h>
#include <AppKit/NSImageView.h>
/*
* Class variables
*/
static Class usedCellClass;
static Class imageCellClass;
@implementation NSImageView
//
// Class methods
//
+ (void) initialize
{
if (self == [NSImageView class])
{
[self setVersion: 1];
imageCellClass = [NSImageCell class];
usedCellClass = imageCellClass;
}
}
/*
* Setting the Cell class
*/
+ (Class) cellClass
{
return usedCellClass;
}
+ (void) setCellClass: (Class)factoryId
{
usedCellClass = factoryId ? factoryId : imageCellClass;
}
- (id) init
{
return [self initWithFrame: NSZeroRect];
}
- (id) initWithFrame: (NSRect)aFrame
{
[super initWithFrame: aFrame];
// set the default values
[self setImageAlignment: NSImageAlignCenter];
[self setImageFrameStyle: NSImageFrameNone];
[self setImageScaling: NSScaleProportionally];
[self setEditable: YES];
return self;
}
- (void) setImage: (NSImage *)image
{
[_cell setImage: image];
[self updateCell: _cell];
}
- (void) setImageAlignment: (NSImageAlignment)align
{
[_cell setImageAlignment: align];
[self updateCell: _cell];
}
- (void) setImageScaling: (NSImageScaling)scaling
{
[_cell setImageScaling: scaling];
[self updateCell: _cell];
}
- (void) setImageFrameStyle: (NSImageFrameStyle)style
{
[_cell setImageFrameStyle: style];
[self updateCell: _cell];
}
- (void) setEditable: (BOOL)flag
{
[_cell setEditable: flag];
}
- (NSImage *) image
{
return [_cell image];
}
- (NSImageAlignment) imageAlignment
{
return [_cell imageAlignment];
}
- (NSImageScaling) imageScaling
{
return [_cell imageScaling];
}
- (NSImageFrameStyle) imageFrameStyle
{
return [_cell imageFrameStyle];
}
- (BOOL) isEditable
{
return [_cell isEditable];
}
@end
@implementation NSImageView (NSDraggingDestination)
- (unsigned int) draggingEntered: (id <NSDraggingInfo>)sender
{
// FIX - should highlight to show that we are a valid target
return NSDragOperationNone;
}
- (void) draggingExited: (id <NSDraggingInfo>)sender
{
// FIX - should remove highlighting
}
- (BOOL) prepareForDragOperation: (id <NSDraggingInfo>)sender
{
if ([self isEditable])
return YES;
else
return NO;
}
- (BOOL) performDragOperation: (id <NSDraggingInfo>)sender
{
// FIX - should copy image data into image cell here
return NO;
}
- (void) concludeDragOperation: (id <NSDraggingInfo>)sender
{
// FIX - should update refresh image here
}
@end
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