Source/BSSourceView.m

   1 /*
   2  * MacGDBp
   3  * Copyright (c) 2007 - 2008, Blue Static <http://www.bluestatic.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
   6  * General Public License as published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
  10  * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with this program; if not,
  14  * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  15  */
  16
  17 #import "BSSourceView.h"
  18
  19 @interface BSSourceView (Private)
  20 - (void)setupViews;
  21 @end
  22
  23 @implementation BSSourceView
  24
  25 @synthesize numberView, textView, scrollView, markedLine, delegate, file;
  26
  27 /**
  28  * Initializes the source view with the path of a file
  29  */
  30 - (id)initWithFrame:(NSRect)frame
  31 {
  32         if (self = [super initWithFrame:frame])
  33         {
  34                 [self setupViews];
  35         }
  36         return self;
  37 }
  38
  39 /**
  40  * Dealloc
  41  */
  42 - (void)dealloc
  43 {
  44         if (file != nil)
  45         {
  46                 [file release];
  47         }
  48         [super dealloc];
  49 }
  50
  51 /**
  52  * Sets the file name as well as the text of the source view
  53  */
  54 - (void)setFile:(NSString *)f
  55 {
  56         [file release];
  57         file = [f retain];
  58
  59         @try
  60         {
  61                 // Attempt to use the PHP CLI to highlight the source file as HTML
  62                 NSPipe* pipe = [NSPipe pipe];
  63                 NSTask* task = [NSTask new];
  64                 [task setLaunchPath:@"/usr/bin/php"]; // This is the path to the default Leopard PHP executable
  65                 [task setArguments:[NSArray arrayWithObjects:@"-s", f, nil]];
  66                 [task setStandardOutput:pipe];
  67                 [task launch];
  68                 NSData* data               = [[pipe fileHandleForReading] readDataToEndOfFile];
  69                 NSAttributedString* source = [[NSAttributedString alloc] initWithHTML:data documentAttributes:NULL];
  70                 [[textView textStorage] setAttributedString:source];
  71         }
  72         @catch (NSException* exception)
  73         {
  74                 // If the PHP executable is not available then the NSTask will throw an exception
  75                 [textView setString:[NSString stringWithContentsOfFile:f]];
  76         }
  77 }
  78
  79 /**
  80  * Flip the coordinates
  81  */
  82 - (BOOL)isFlipped
  83 {
  84         return YES;
  85 }
  86
  87 /**
  88  * Tells the text view to scroll to a certain line
  89  */
  90 - (void)scrollToLine:(int)line
  91 {
  92         // go through the document until we find the NSRange for the line we want
  93         int rangeIndex = 0;
  94         for (int i = 0; i < line; i++)
  95         {
  96                 rangeIndex = NSMaxRange([[textView string] lineRangeForRange:NSMakeRange(rangeIndex, 0)]);
  97         }
  98
  99         // now get the true start/end markers for it
 100         unsigned lineStart, lineEnd;
 101         [[textView string] getLineStart:&lineStart end:NULL contentsEnd:&lineEnd forRange:NSMakeRange(rangeIndex - 1, 0)];
 102         [textView scrollRangeToVisible:[[textView string] lineRangeForRange:NSMakeRange(lineStart, lineEnd - lineStart)]];
 103 }
 104
 105 /**
 106  * Setup all the subviews for the source metaview
 107  */
 108 - (void)setupViews
 109 {
 110         int gutterWidth = 30;
 111
 112         // setup the line number view
 113         NSRect numberFrame = [self bounds];
 114         numberFrame.origin = NSMakePoint(0.0, 0.0);
 115         numberFrame.size.width = gutterWidth;
 116         numberView = [[BSLineNumberView alloc] initWithFrame:numberFrame];
 117         [numberView setAutoresizingMask:NSViewHeightSizable];
 118         [numberView setSourceView:self];
 119         [self addSubview:numberView];
 120
 121         // create the scroll view
 122         NSRect scrollFrame = [self bounds];
 123         scrollFrame.origin.x = gutterWidth;
 124         scrollFrame.size.width = scrollFrame.size.width - gutterWidth;
 125         scrollView = [[NSScrollView alloc] initWithFrame:scrollFrame];
 126         [scrollView setHasHorizontalScroller:YES];
 127         [scrollView setHasVerticalScroller:YES];
 128         [scrollView setAutohidesScrollers:YES];
 129         [scrollView setBorderType:NSBezelBorder];
 130         [scrollView setAutoresizingMask:(NSViewWidthSizable | NSViewHeightSizable)];
 131         [[scrollView contentView] setAutoresizesSubviews:YES];
 132         [self addSubview:scrollView];
 133
 134         // add the text view to the scroll view
 135         NSRect textFrame;
 136         textFrame.origin = NSMakePoint(0.0, 0.0);
 137         textFrame.size = [scrollView contentSize];
 138         textView = [[BSSourceViewTextView alloc] initWithFrame:textFrame];
 139         [textView setSourceView:self];
 140         [textView setEditable:NO];
 141         [textView setFont:[NSFont fontWithName:@"Monaco" size:10.0]];
 142         [textView setHorizontallyResizable:YES];
 143         [textView setVerticallyResizable:YES];
 144         [textView setMinSize:textFrame.size];
 145         [textView setMaxSize:NSMakeSize(FLT_MAX, FLT_MAX)];
 146         [[textView textContainer] setContainerSize:NSMakeSize(FLT_MAX, FLT_MAX)];
 147         [[textView textContainer] setWidthTracksTextView:NO];
 148         [[textView textContainer] setHeightTracksTextView:NO];
 149         [textView setAutoresizingMask:NSViewNotSizable];
 150         [scrollView setDocumentView:textView];
 151 }
 152
 153 @end