netsurf/cocoa/ScrollableView.m

69 lines
1.9 KiB
Objective-C

/*
* Copyright 2011 Sven Weidauer <sven.weidauer@gmail.com>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#import "cocoa/ScrollableView.h"
@interface ScrollableView ()
- (void) frameChangeNotification: (NSNotification *) note;
@end
@implementation ScrollableView
@synthesize minimumSize;
- (void) setMinimumSize: (NSSize)newSize;
{
minimumSize = newSize;
[self adjustFrame];
}
- (void) adjustFrame;
{
NSSize frameSize = [[self superview] frame].size;
[self setFrameSize: NSMakeSize( MAX( minimumSize.width, frameSize.width ),
MAX( minimumSize.height, frameSize.height ) )];
}
- (void) frameChangeNotification: (NSNotification *) note;
{
[self adjustFrame];
}
- (void) viewDidMoveToSuperview;
{
if (observedSuperview) {
[[NSNotificationCenter defaultCenter] removeObserver: self
name: NSViewFrameDidChangeNotification
object: observedSuperview];
observedSuperview = nil;
}
NSView *newSuperView = [self superview];
if (nil != newSuperView) {
observedSuperview = newSuperView;
[[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(frameChangeNotification:)
name: NSViewFrameDidChangeNotification
object: observedSuperview];
[observedSuperview setPostsFrameChangedNotifications: YES];
}
}
@end