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  * Sets the file name as well as the text of the source view
  41  */
  42 - (void)setFile:(NSString *)f
  43 {
  44         file = f;
  45
  46         @try
  47         {
  48                 // Attempt to use the PHP CLI to highlight the source file as HTML
  49                 NSPipe* pipe = [NSPipe pipe];
  50                 NSTask* task = [NSTask new];
  51                 [task setLaunchPath:@"/usr/bin/php"]; // This is the path to the default Leopard PHP executable
  52                 [task setArguments:[NSArray arrayWithObjects:@"-s", f, nil]];
  53                 [task setStandardOutput:pipe];
  54                 [task launch];
  55                 NSData* data               = [[pipe fileHandleForReading] readDataToEndOfFile];
  56                 NSAttributedString* source = [[NSAttributedString alloc] initWithHTML:data documentAttributes:NULL];
  57                 [[textView textStorage] setAttributedString:source];
  58         }
  59         @catch(NSException* exception)
  60         {
  61                 // If the PHP executable is not available then the NSTask will throw an exception
  62                 [textView setString:[NSString stringWithContentsOfFile:f]];
  63         }
  64 }
  65
  66 /**
  67  * Flip the coordinates
  68  */
  69 - (BOOL)isFlipped
  70 {
  71         return YES;
  72 }
  73
  74 /**
  75  * Tells the text view to scroll to a certain line
  76  */
  77 - (void)scrollToLine:(int)line
  78 {
  79         // go through the document until we find the NSRange for the line we want
  80         int rangeIndex = 0;
  81         for (int i = 0; i < line; i++)
  82         {
  83                 rangeIndex = NSMaxRange([[textView string] lineRangeForRange:NSMakeRange(rangeIndex, 0)]);
  84         }
  85
  86         // now get the true start/end markers for it
  87         unsigned lineStart, lineEnd;
  88         [[textView string] getLineStart:&lineStart end:NULL contentsEnd:&lineEnd forRange:NSMakeRange(rangeIndex - 1, 0)];
  89         [textView scrollRangeToVisible:[[textView string] lineRangeForRange:NSMakeRange(lineStart, lineEnd - lineStart)]];
  90 }
  91
  92 /**
  93  * Setup all the subviews for the source metaview
  94  */
  95 - (void)setupViews
  96 {
  97         int gutterWidth = 30;
  98
  99         // setup the line number view
 100         NSRect numberFrame = [self bounds];
 101         numberFrame.origin = NSMakePoint(0.0, 0.0);
 102         numberFrame.size.width = gutterWidth;
 103         numberView = [[BSLineNumberView alloc] initWithFrame:numberFrame];
 104         [numberView setAutoresizingMask:NSViewHeightSizable];
 105         [numberView setSourceView:self];
 106         [self addSubview:numberView];
 107
 108         // create the scroll view
 109         NSRect scrollFrame = [self bounds];
 110         scrollFrame.origin.x = gutterWidth;
 111         scrollFrame.size.width = scrollFrame.size.width - gutterWidth;
 112         scrollView = [[NSScrollView alloc] initWithFrame:scrollFrame];
 113         [scrollView setHasHorizontalScroller:YES];
 114         [scrollView setHasVerticalScroller:YES];
 115         [scrollView setAutohidesScrollers:YES];
 116         [scrollView setBorderType:NSBezelBorder];
 117         [scrollView setAutoresizingMask:(NSViewWidthSizable | NSViewHeightSizable)];
 118         [[scrollView contentView] setAutoresizesSubviews:YES];
 119         [self addSubview:scrollView];
 120
 121         // add the text view to the scroll view
 122         NSRect textFrame;
 123         textFrame.origin = NSMakePoint(0.0, 0.0);
 124         textFrame.size = [scrollView contentSize];
 125         textView = [[BSSourceViewTextView alloc] initWithFrame:textFrame];
 126         [textView setSourceView:self];
 127         [textView setEditable:NO];
 128         [textView setFont:[NSFont fontWithName:@"Monaco" size:10.0]];
 129         [textView setHorizontallyResizable:YES];
 130         [textView setVerticallyResizable:YES];
 131         [textView setMinSize:textFrame.size];
 132         [textView setMaxSize:NSMakeSize(FLT_MAX, FLT_MAX)];
 133         [[textView textContainer] setContainerSize:NSMakeSize(FLT_MAX, FLT_MAX)];
 134         [[textView textContainer] setWidthTracksTextView:NO];
 135         [[textView textContainer] setHeightTracksTextView:NO];
 136         [textView setAutoresizingMask:NSViewNotSizable];
 137         [scrollView setDocumentView:textView];
 138 }
 139
 140 @end