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131 lines
3.4 KiB
Plaintext
131 lines
3.4 KiB
Plaintext
/*
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* CPClipView.j
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* AppKit
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*
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* Created by Francisco Tolmasky.
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* Copyright 2008, 280 North, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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import "CPView.j"
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#include "CoreGraphics/CGGeometry.h"
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@implementation CPClipView : CPView
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{
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CPView _documentView;
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}
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- (void)setDocumentView:(CPView)aView
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{
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if (_documentView == aView)
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return;
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var defaultCenter = [CPNotificationCenter defaultCenter];
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if (_documentView)
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{
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[defaultCenter
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removeObserver:self
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name:CPViewFrameDidChangeNotification
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object:_documentView];
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[defaultCenter
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removeObserver:self
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name:CPViewBoundsDidChangeNotification
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object:_documentView];
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[_documentView removeFromSuperview];
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}
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_documentView = aView;
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if (_documentView)
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{
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// FIXME: remove when bounds.
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[_documentView setFrameOrigin:CGPointMake(0.0, 0.0)];
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[self addSubview:_documentView];
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[_documentView setPostsFrameChangedNotifications:YES];
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[_documentView setPostsBoundsChangedNotifications:YES];
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[defaultCenter
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addObserver:self
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selector:@selector(viewFrameChanged:)
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name:CPViewFrameDidChangeNotification
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object:_documentView];
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[defaultCenter
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addObserver:self
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selector:@selector(viewBoundsChanged:)
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name:CPViewBoundsDidChangeNotification
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object:_documentView];
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}
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}
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- (id)documentView
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{
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return _documentView;
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}
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- (CGPoint)constrainScrollPoint:(CGPoint)aPoint
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{
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var documentFrame = [_documentView frame];
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aPoint.x = MAX(0.0, MIN(aPoint.x, MAX(_CGRectGetWidth(documentFrame) - _CGRectGetWidth(_bounds), 0.0)));
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aPoint.y = MAX(0.0, MIN(aPoint.y, MAX(_CGRectGetHeight(documentFrame) - _CGRectGetHeight(_bounds), 0.0)));
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return aPoint;
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}
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- (void)setBoundsOrigin:(CGPoint)aPoint
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{
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if (_CGPointEqualToPoint(_bounds.origin, aPoint))
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return;
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[super setBoundsOrigin:aPoint];
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var superview = [self superview];
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if([superview isKindOfClass:[CPScrollView class]])
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[superview reflectScrolledClipView:self];
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}
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- (void)scrollToPoint:(CPPoint)aPoint
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{
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[self setBoundsOrigin:[self constrainScrollPoint:aPoint]];
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}
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- (void)viewBoundsChanged:(CPNotification)aNotification
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{
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var superview = [self superview];
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if([superview isKindOfClass:[CPScrollView class]])
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[superview reflectScrolledClipView:self];
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}
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- (void)viewFrameChanged:(CPNotification)aNotification
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{
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var superview = [self superview];
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if([superview isKindOfClass:[CPScrollView class]])
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[superview reflectScrolledClipView:self];
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}
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@end
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