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Implemented path plotter 

svn path=/trunk/netsurf/; revision=11382
This commit is contained in:
Sven Weidauer 2011-01-19 10:20:44 +00:00
parent 3060423700
commit 5a259dadeb
1 changed files with 64 additions and 3 deletions
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67
cocoa/plotter.m
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@ -20,13 +20,12 @@
#include "desktop/plotters.h"
#import "desktop/plot_style.h"
#import "utils/log.h"
#import "cocoa/font.h"
#import "cocoa/plotter.h"
#import "cocoa/bitmap.h"
#define UNIMPL() NSLog( @"Function '%s' unimplemented", __func__ )
static void cocoa_plot_render_path(NSBezierPath *path,const plot_style_t *pstyle);
static void cocoa_plot_path_set_stroke_pattern(NSBezierPath *path,const plot_style_t *pstyle);
static NSRect cocoa_plot_clip_rect;
@ -174,7 +173,69 @@ static bool plot_polygon(const int *p, unsigned int n, const plot_style_t *pstyl
static bool plot_path(const float *p, unsigned int n, colour fill, float width,
colour c, const float transform[6])
{
UNIMPL();
if (n == 0) return true;
if (*p != PLOTTER_PATH_MOVE) {
LOG(("Path does not start with move"));
return false;
}
NSBezierPath *path = [NSBezierPath bezierPath];
#define NEXT_POINT() NSMakePoint( *p++, *p++ )
while (n--) {
switch ((int)*p++) {
case PLOTTER_PATH_MOVE:
[path moveToPoint: NEXT_POINT()];
break;
case PLOTTER_PATH_LINE:
[path lineToPoint: NEXT_POINT()];
break;
case PLOTTER_PATH_BEZIER: {
const NSPoint cp1 = NEXT_POINT();
const NSPoint cp2 = NEXT_POINT();
const NSPoint ep = NEXT_POINT();
[path curveToPoint: ep controlPoint1: cp1 controlPoint2: cp2];
break;
}
case PLOTTER_PATH_CLOSE:
[path closePath];
break;
default:
LOG(("Invalid path"));
return false;
}
}
#undef NEXT_POINT
[path setLineWidth: width];
CGContextRef context = [[NSGraphicsContext currentContext] graphicsPort];
CGContextSaveGState( context );
CGContextClipToRect( context, NSRectToCGRect( cocoa_plot_clip_rect ) );
CGContextConcatCTM( context, CGAffineTransformMake( transform[0], transform[1], transform[2],
transform[3], transform[4], transform[5] ) );
if (fill != NS_TRANSPARENT) {
[cocoa_convert_colour( fill ) setFill];
[path fill];
}
if (c != NS_TRANSPARENT) {
[cocoa_convert_colour( c ) set];
[path stroke];
}
CGContextRestoreGState( context );
return true;
}