Source/BSLineNumberView.m

   1 /*
   2  * MacGDBp
   3  * Copyright (c) 2007 - 2009, 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 "BSLineNumberView.h"
  18 #import "Breakpoint.h"
  19 #import "BSSourceView.h"
  20
  21 @interface BSLineNumberView (Private)
  22 - (void)drawMarkerInRect:(NSRect)rect;
  23 @end
  24
  25 @implementation BSLineNumberView
  26
  27 @synthesize sourceView, lineNumberRange, markers;
  28
  29 /**
  30  * Initializer for the line number view
  31  */
  32 - (id)initWithFrame:(NSRect)frame
  33 {
  34         if (self = [super initWithFrame:frame])
  35         {
  36                 lineNumberRange = NSMakeRange(0, 0);
  37         }
  38         return self;
  39 }
  40
  41 /**
  42  * Flip the coordinates
  43  */
  44 - (BOOL)isFlipped
  45 {
  46         return YES;
  47 }
  48
  49 /**
  50  * Draws the line numbers whenever necessary
  51  */
  52 - (void)drawRect:(NSRect)rect
  53 {
  54         // background color
  55         [[NSColor colorWithDeviceRed:0.871 green:0.871 blue:0.871 alpha:1] set];
  56         [NSBezierPath fillRect:rect];
  57
  58         [[NSColor blackColor] set];
  59         [NSBezierPath strokeLineFromPoint:NSMakePoint(rect.origin.x, rect.origin.y) toPoint:NSMakePoint(rect.origin.x + rect.size.width, rect.origin.y)];
  60
  61         [[NSColor grayColor] set];
  62         [NSBezierPath strokeLineFromPoint:NSMakePoint(rect.origin.x, rect.size.height) toPoint:NSMakePoint(rect.origin.x + rect.size.width, rect.size.height)];
  63
  64         // font attributes for the line number
  65         NSDictionary *attrs = [NSDictionary dictionaryWithObjectsAndKeys:[NSFont fontWithName:@"Monaco" size:9.0], NSFontAttributeName, [NSColor grayColor], NSForegroundColorAttributeName, nil];
  66
  67         lineNumberRange = NSMakeRange(0, 0);
  68
  69         unsigned i = 0, line = 1;
  70         while (i < [[[sourceView textView] layoutManager] numberOfGlyphs])
  71         {
  72                 NSRange fragRange;
  73                 NSRect fragRect = [self convertRect:[[[sourceView textView] layoutManager] lineFragmentRectForGlyphAtIndex:i effectiveRange:&fragRange] fromView:[sourceView textView]];
  74                 fragRect.origin.x = rect.origin.x; // horizontal scrolling matters not
  75                 fragRect.size.width = [self bounds].size.width;
  76
  77                 // we want to paint the top and bottom line number even if they're cut off
  78                 NSRect testRect = rect;
  79                 testRect.origin.y -= fragRect.size.height - 1;
  80                 testRect.size.height += fragRect.size.height - 1;
  81                 if (NSPointInRect(fragRect.origin, testRect))
  82                 {
  83                         lineNumberRange.location = (lineNumberRange.length == 0 ? line : lineNumberRange.location);
  84                         lineNumberRange.length++;
  85                         NSString *num = [NSString stringWithFormat:@"%u", line];
  86                         NSSize strSize = [num sizeWithAttributes:attrs];
  87                         [num drawAtPoint:NSMakePoint([self frame].size.width - strSize.width - 3, fragRect.origin.y + ((fragRect.size.height - strSize.height) / 2)) withAttributes:attrs];
  88                         Breakpoint *test = [[Breakpoint alloc] initWithLine:line inFile:[sourceView file]];
  89                         if ([markers containsObject:test])
  90                         {
  91                                 [self drawMarkerInRect:fragRect];
  92                         }
  93                         [test release];
  94                 }
  95
  96                 i += fragRange.length;
  97                 line++;
  98         }
  99 }
 100
 101 /**
 102  * Handles the mouse down event (which is adding, deleting, and toggling breakpoints)
 103  */
 104 - (void)mouseDown:(NSEvent *)event
 105 {
 106         NSTextView *textView = [sourceView textView];
 107
 108         NSPoint clickLoc = [self convertPoint:[event locationInWindow] fromView:nil];
 109
 110         unsigned line = 1;
 111         unsigned i = 0;
 112         while (i < [[textView layoutManager] numberOfGlyphs])
 113         {
 114                 NSRange fragRange;
 115                 NSRect fragRect = [[textView layoutManager] lineFragmentRectForGlyphAtIndex:i effectiveRange:&fragRange];
 116                 fragRect.size.width = [self bounds].size.width;
 117                 if (NSPointInRect(clickLoc, fragRect))
 118                 {
 119                         [[sourceView delegate] gutterClickedAtLine:(line + lineNumberRange.location - 1) forFile:[sourceView file]];
 120                         return;
 121                 }
 122
 123                 i += fragRange.length;
 124                 line++;
 125         }
 126 }
 127
 128 #pragma mark Private
 129
 130 /**
 131  * Draws a marker in a given rectangle
 132  */
 133 - (void)drawMarkerInRect:(NSRect)rect
 134 {
 135         NSBezierPath *path = [NSBezierPath bezierPath];
 136
 137         [path moveToPoint:NSMakePoint(rect.origin.x + 2, rect.origin.y + 2)]; // initial origin
 138         [path lineToPoint:NSMakePoint(rect.size.width - 7, rect.origin.y + 2)]; // upper right
 139         [path lineToPoint:NSMakePoint(rect.size.width - 2, rect.origin.y + (rect.size.height / 2))]; // point
 140         [path lineToPoint:NSMakePoint(rect.size.width - 7, rect.origin.y + rect.size.height - 2)]; // lower right
 141         [path lineToPoint:NSMakePoint(rect.origin.x + 2, rect.origin.y + rect.size.height - 2)]; // lower left
 142         [path lineToPoint:NSMakePoint(rect.origin.x + 2, rect.origin.y + 1)]; // upper left
 143
 144         [[NSColor colorWithDeviceRed:0.004 green:0.557 blue:0.851 alpha:1.0] set];
 145         [path fill];
 146
 147         [[NSColor colorWithDeviceRed:0.0 green:0.404 blue:0.804 alpha:1.0] set];
 148         [path setLineWidth:2];
 149         [path stroke];
 150 }
 151
 152 @end