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/*
* 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/TreeView.h"
#import "cocoa/Tree.h"
#import "desktop/plotters.h"
@interface TreeView () <TreeDelegate>
@end
@implementation TreeView
@synthesize tree;
- (void)drawRect:(NSRect)dirtyRect
{
[tree drawRect: dirtyRect inView: self];
}
- (BOOL) isFlipped;
{
return YES;
}
- (void) dealloc;
{
[self setTree: nil];
[super dealloc];
}
- (void) setTree: (Tree *)newTree;
{
if (tree != newTree) {
[tree setRedrawing: NO];
[tree setDelegate: nil];
[tree release];
tree = [newTree retain];
[tree setDelegate: self];
[tree setRedrawing: YES];
[self setNeedsDisplay: YES];
}
}
//MARK: -
//MARK: Event handlers
- (void)mouseDown: (NSEvent *)event;
{
isDragging = NO;
dragStart = [self convertPoint: [event locationInWindow] fromView: nil];
[tree mouseAction: BROWSER_MOUSE_PRESS_1 atPoint: dragStart];
}
#define squared(x) ((x)*(x))
#define MinDragDistance (5.0)
- (void) mouseDragged: (NSEvent *)event;
{
const NSPoint point = [self convertPoint: [event locationInWindow] fromView: nil];
if (!isDragging) {
const CGFloat distance = squared( dragStart.x - point.x ) + squared( dragStart.y - point.y );
if (distance >= squared( MinDragDistance)) isDragging = YES;
}
}
- (void) mouseUp: (NSEvent *)event;
{
const NSPoint point = [self convertPoint: [event locationInWindow] fromView: nil];
browser_mouse_state modifierFlags = 0;
if (isDragging) {
isDragging = NO;
[tree mouseDragEnd: modifierFlags fromPoint: dragStart toPoint: point];
} else {
modifierFlags |= BROWSER_MOUSE_CLICK_1;
if ([event clickCount] == 2) modifierFlags |= BROWSER_MOUSE_DOUBLE_CLICK;
[tree mouseAction: modifierFlags atPoint: point];
}
}
//MARK: -
//MARK: Tree delegate methods
- (void) tree: (Tree *)t requestedRedrawInRect: (NSRect) rect;
{
[self setNeedsDisplayInRect: rect];
}
- (void) tree: (Tree *)t resized: (NSSize) size;
{
[self setMinimumSize: size];
}
- (void) tree: (Tree *)t scrollPoint: (NSPoint) point;
{
[self scrollPoint: point];
}
- (NSSize) treeWindowSize: (Tree *)t;
{
return [self frame].size;
}
@end
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