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