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