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         [file release];
  45
  46         [numberView removeFromSuperview];
  47         [scrollView removeFromSuperview];
  48         [textView removeFromSuperview];
  49
  50         [super dealloc];
  51 }
  52
  53 /**
  54  * Sets the file name as well as the text of the source view
  55  */
  56 - (void)setFile:(NSString *)f
  57 {
  58         if (file != f)
  59         {
  60                 [file release];
  61                 file = [f retain];
  62         }
  63
  64         @try
  65         {
  66                 // Attempt to use the PHP CLI to highlight the source file as HTML
  67                 NSPipe *pipe = [NSPipe pipe];
  68                 NSTask *task = [[NSTask new] autorelease];
  69                 [task setLaunchPath:@"/usr/bin/php"]; // This is the path to the default Leopard PHP executable
  70                 [task setArguments:[NSArray arrayWithObjects:@"-s", f, nil]];
  71                 [task setStandardOutput:pipe];
  72                 [task launch];
  73                 NSData *data               = [[pipe fileHandleForReading] readDataToEndOfFile];
  74                 NSAttributedString *source = [[NSAttributedString alloc] initWithHTML:data documentAttributes:NULL];
  75                 [[textView textStorage] setAttributedString:source];
  76                 [source release];
  77         }
  78         @catch (NSException *exception)
  79         {
  80                 // If the PHP executable is not available then the NSTask will throw an exception
  81                 [textView setString:[NSString stringWithContentsOfFile:f]];
  82         }
  83 }
  84
  85 /**
  86  * Flip the coordinates
  87  */
  88 - (BOOL)isFlipped
  89 {
  90         return YES;
  91 }
  92
  93 /**
  94  * Tells the text view to scroll to a certain line
  95  */
  96 - (void)scrollToLine:(int)line
  97 {
  98         // go through the document until we find the NSRange for the line we want
  99         int rangeIndex = 0;
 100         for (int i = 0; i < line; i++)
 101         {
 102                 rangeIndex = NSMaxRange([[textView string] lineRangeForRange:NSMakeRange(rangeIndex, 0)]);
 103         }
 104
 105         // now get the true start/end markers for it
 106         unsigned lineStart, lineEnd;
 107         [[textView string] getLineStart:&lineStart end:NULL contentsEnd:&lineEnd forRange:NSMakeRange(rangeIndex - 1, 0)];
 108         [textView scrollRangeToVisible:[[textView string] lineRangeForRange:NSMakeRange(lineStart, lineEnd - lineStart)]];
 109 }
 110
 111 /**
 112  * Setup all the subviews for the source metaview
 113  */
 114 - (void)setupViews
 115 {
 116         int gutterWidth = 30;
 117
 118         // setup the line number view
 119         NSRect numberFrame = [self bounds];
 120         numberFrame.origin = NSMakePoint(0.0, 0.0);
 121         numberFrame.size.width = gutterWidth;
 122         numberView = [[BSLineNumberView alloc] initWithFrame:numberFrame];
 123         [numberView setAutoresizingMask:NSViewHeightSizable];
 124         [numberView setSourceView:self];
 125         [self addSubview:numberView];
 126
 127         // create the scroll view
 128         NSRect scrollFrame = [self bounds];
 129         scrollFrame.origin.x = gutterWidth;
 130         scrollFrame.size.width = scrollFrame.size.width - gutterWidth;
 131         scrollView = [[NSScrollView alloc] initWithFrame:scrollFrame];
 132         [scrollView setHasHorizontalScroller:YES];
 133         [scrollView setHasVerticalScroller:YES];
 134         [scrollView setAutohidesScrollers:YES];
 135         [scrollView setBorderType:NSBezelBorder];
 136         [scrollView setAutoresizingMask:(NSViewWidthSizable | NSViewHeightSizable)];
 137         [[scrollView contentView] setAutoresizesSubviews:YES];
 138         [self addSubview:scrollView];
 139
 140         // add the text view to the scroll view
 141         NSRect textFrame;
 142         textFrame.origin = NSMakePoint(0.0, 0.0);
 143         textFrame.size = [scrollView contentSize];
 144         textView = [[BSSourceViewTextView alloc] initWithFrame:textFrame];
 145         [textView setSourceView:self];
 146         [textView setEditable:NO];
 147         [textView setFont:[NSFont fontWithName:@"Monaco" size:10.0]];
 148         [textView setHorizontallyResizable:YES];
 149         [textView setVerticallyResizable:YES];
 150         [textView setMinSize:textFrame.size];
 151         [textView setMaxSize:NSMakeSize(FLT_MAX, FLT_MAX)];
 152         [[textView textContainer] setContainerSize:NSMakeSize(FLT_MAX, FLT_MAX)];
 153         [[textView textContainer] setWidthTracksTextView:NO];
 154         [[textView textContainer] setHeightTracksTextView:NO];
 155         [textView setAutoresizingMask:NSViewNotSizable];
 156         [scrollView setDocumentView:textView];
 157 }
 158
 159 @end