graphviz_app/GVWindowController.m at main · zosmac/graphviz_app · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
/*************************************************************************
 * Copyright (c) 2011 AT&T Intellectual Property
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors: Details at http://www.graphviz.org/
 *************************************************************************/

#import "GVWindowController.h"
#import "GVZGraph.h"
#import "GVDocument.h"

@implementation GVWindowController

- (instancetype)init
{
	if (self = [super initWithWindowNibName: @"Document"])
		;
	return self;
}

- (void)setDocument:(NSDocument *)document
{
	NSNotificationCenter *defaultCenter = [NSNotificationCenter defaultCenter];

	GVDocument *oldDocument = self.document;
	if (oldDocument)
		[defaultCenter removeObserver:self name:@"GVGraphDocumentDidChange" object:oldDocument];
	super.document = document;
	[defaultCenter addObserver:self selector:@selector(graphDocumentDidChange:) name:@"GVGraphDocumentDidChange" object:document];
}

- (void)awakeFromNib
{
	[self graphDocumentDidChange:nil];

	/* if window is not at standard size, make it standard size */
	NSWindow *window = self.window;
	if (!window.zoomed)
		[window zoom:self];

	documentView.delegate = self;
}

- (void)graphDocumentDidChange:(NSNotification *)notification
{
	/* whenever the graph changes, rerender its PDF and display that */
	GVDocument *document = self.document;
	if ([document respondsToSelector:@selector(graph)])
		documentView.document = [[PDFDocument alloc] initWithData:[document.graph renderWithFormat:@"pdf:quartz"]];
}

- (NSRect)windowWillUseStandardFrame:(NSWindow *)window defaultFrame:(NSRect)defaultFrame
{
	/* standard size for zooming is whatever will fit the content exactly */
	NSRect currentFrame = window.frame;
	NSRect standardFrame = [window frameRectForContentRect:documentView.documentView.bounds];
	standardFrame.origin.x = currentFrame.origin.x;
	standardFrame.origin.y = currentFrame.origin.y + currentFrame.size.height - standardFrame.size.height;
	return standardFrame;
}

- (IBAction)actualSizeView:(id)sender
{
	documentView.scaleFactor = 1.0;
}

- (IBAction)zoomInView:(id)sender
{
	[documentView zoomIn:sender];
}

- (IBAction)zoomOutView:(id)sender
{
	[documentView zoomOut:sender];
}

- (IBAction)zoomToFitView:(id)sender
{
	[documentView setAutoScales:YES];
	[documentView setAutoScales:NO];
}

- (IBAction)printGraphDocument:(id)sender
{
	[documentView printWithInfo:[self.document printInfo] autoRotate:NO pageScaling:kPDFPrintPageScaleDownToFit];
}

- (void)PDFViewWillClickOnLink:(PDFView *)sender withURL:(NSURL *)url
{
	NSURL *baseURL = [self.document fileURL];
	NSURL *targetURL = [NSURL URLWithString:url.absoluteString relativeToURL:baseURL];
	[[NSWorkspace sharedWorkspace] openURL:targetURL];
}

- (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem
{
	/* validate toolbar or menu items */
	if (anItem.action == @selector(actualSizeView:))
		return YES;
	else if (anItem.action == @selector(zoomInView:))
		return documentView.canZoomIn;
	else if (anItem.action == @selector(zoomOutView:))
		return documentView.canZoomOut;
	else if (anItem.action == @selector(zoomToFitView:))
		return YES;
	else if (anItem.action == @selector(printGraphDocument:))
		return YES;
	else
		return NO;
}
- (void)dealloc
{
	[[NSNotificationCenter defaultCenter] removeObserver:self name:@"GVGraphDocumentDidChange" object:self.document];
}

@end