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  • Committer: Bazaar Package Importer
  • Author(s): David Claughton
  • Date: 2010-03-24 22:45:18 UTC
  • mfrom: (1.2.7 upstream) (6.1.7 sid)
  • Revision ID: james.westby@ubuntu.com-20100324224518-do441tthbqjaqjzd
Tags: 2.26.3-4
http://bugs.debian.org/575255
Add patch to fix segfault in circo. Backported from upstream snapshot
release.  Thanks to Francis Russell for his work on this.
(Closes: #575255)

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plugin/quartz/GVTextLayout.m
 
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/* $Id: GVTextLayout.m,v 1.4 2009/06/03 01:10:57 ellson Exp $ $Revision: 1.4 $ */
 
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/* vim:set shiftwidth=4 ts=8: */
 
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/**********************************************************
 
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 *      This software is part of the graphviz package      *
 
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 *                http://www.graphviz.org/                 *
 
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 *                                                         *
 
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 *            Copyright (c) 1994-2008 AT&T Corp.           *
 
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 *                and is licensed under the                *
 
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 *            Common Public License, Version 1.0           *
 
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 *                      by AT&T Corp.                      *
 
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 *                                                         *
 
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 *        Information and Software Systems Research        *
 
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 *              AT&T Research, Florham Park NJ             *
 
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 **********************************************************/
 
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#ifdef HAVE_CONFIG_H
 
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#include "config.h"
 
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#endif
 
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#include <stdlib.h>
 
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#include <string.h>
 
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#include "types.h"
 
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#include "gvcjob.h"
 
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#include "gvplugin_quartz.h"
 
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#if __IPHONE_OS_VERSION_MIN_REQUIRED >= 20000
 
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#import "GVTextLayout.h"
 
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boolean quartz_textlayout(textpara_t *para, char **fontpath)
 
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{
 
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        GVTextLayout* layout = [[GVTextLayout alloc] initWithFontName:para->fontname fontSize:para->fontsize text:para->str];
 
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        CGSize size = layout.size;
 
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        para->layout = layout;
 
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        para->free_layout = &quartz_free_layout;
 
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        para->width = size.width;
 
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        para->height = size.height;
 
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        para->yoffset_layout = layout.font.ascender;
 
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        para->yoffset_centerline = 0;
 
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        return TRUE;
 
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}
 
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void quartz_free_layout(void *layout)
 
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{
 
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        [(GVTextLayout*)layout release];
 
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}
 
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void quartzgen_textpara(GVJ_t *job, pointf p, textpara_t *para)
 
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{
 
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        CGContextRef context = (CGContextRef)job->context;
 
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        /* adjust text position */
 
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        switch (para->just) {
 
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                case 'r':
 
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                        p.x -= para->width;
 
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                        break;
 
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                case 'l':
 
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                        p.x -= 0.0;
 
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                        break;
 
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                case 'n':
 
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                default:
 
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                        p.x -= para->width / 2.0;
 
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                        break;
 
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                }
 
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        p.y += para->yoffset_centerline;
 
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        GVTextLayout* layout;
 
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        if (para->free_layout == &quartz_free_layout)
 
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                layout = (GVTextLayout*)para->layout;
 
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        else
 
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                layout = [[GVTextLayout alloc] initWithFontName:para->fontname fontSize:para->fontsize text:para->str];
 
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        CGContextSaveGState(context);
 
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        CGContextScaleCTM(context, 1.0, -1.0);
 
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        CGContextSetRGBFillColor(context, job->obj->pencolor.u.RGBA [0], job->obj->pencolor.u.RGBA [1], job->obj->pencolor.u.RGBA [2], job->obj->pencolor.u.RGBA [3]);
 
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        [layout drawAtPoint:CGPointMake(p.x, -p.y - para->yoffset_layout) inContext:context];
 
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        CGContextRestoreGState(context);
 
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        if (para->free_layout != &quartz_free_layout)
 
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                [layout release];
 
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}
 
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static NSString* _defaultFontName = @"TimesNewRomanPSMT";
 
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@implementation GVTextLayout
 
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@synthesize font = _font;
 
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@synthesize text = _text;
 
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- (id)initWithFontName:(char*)fontName fontSize:(CGFloat)fontSize text:(char*)text
 
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{
 
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        if (self = [super init])
 
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        {
 
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                _font = nil;
 
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                if (fontName)
 
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                        _font = [[UIFont fontWithName:[NSString stringWithUTF8String:fontName] size:fontSize] retain];
 
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                if (!_font)
 
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                        _font = [[UIFont fontWithName:_defaultFontName size:fontSize] retain];
 
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                _text = text ? [[NSString alloc] initWithUTF8String:text] : nil;
 
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        }
 
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        return self;
 
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}
 
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- (void)drawAtPoint:(CGPoint)point inContext:(CGContextRef)context
 
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{
 
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        UIGraphicsPushContext(context);
 
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        [_text drawAtPoint:point withFont:_font];
 
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        UIGraphicsPopContext();
 
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}
 
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- (CGSize)size
 
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{
 
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        return [_text sizeWithFont:_font];
 
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}
 
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- (void)dealloc
 
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{
 
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        [_font release];
 
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        [_text release];
 
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        [super dealloc];
 
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}
 
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@end
 
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#endif