1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
//
// Portable drawing routines for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2022 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
/**
\file quartz_vertex.cxx
\brief Portable drawing code for drawing arbitrary shapes with
simple 2D transformations, implemented for OS X Quartz.
*/
#include "Fl_Quartz_Graphics_Driver.H"
#include <FL/fl_draw.H>
#include <FL/platform.H>
#include <FL/math.h>
void Fl_Quartz_Graphics_Driver::end_points() {
for (int i = 0; i < n; i++) {
point(xpoint[i].x, xpoint[i].y);
}
}
void Fl_Quartz_Graphics_Driver::end_line() {
if (n < 2) {
end_points();
return;
}
if (n<=1) return;
CGContextSetShouldAntialias(gc_, true);
CGContextMoveToPoint(gc_, xpoint[0].x, xpoint[0].y);
for (int i=1; i<n; i++)
CGContextAddLineToPoint(gc_, xpoint[i].x, xpoint[i].y);
CGContextStrokePath(gc_);
CGContextSetShouldAntialias(gc_, false);
}
void Fl_Quartz_Graphics_Driver::end_polygon() {
fixloop();
if (n < 3) {
end_line();
return;
}
if (n<=1) return;
CGContextSetShouldAntialias(gc_, true);
CGContextMoveToPoint(gc_, xpoint[0].x, xpoint[0].y);
for (int i=1; i<n; i++)
CGContextAddLineToPoint(gc_, xpoint[i].x, xpoint[i].y);
CGContextClosePath(gc_);
CGContextFillPath(gc_);
CGContextSetShouldAntialias(gc_, false);
}
void Fl_Quartz_Graphics_Driver::end_complex_polygon() {
gap();
if (n < 3) {
end_line();
return;
}
if (n<=1) return;
CGContextSetShouldAntialias(gc_, true);
CGContextMoveToPoint(gc_, xpoint[0].x, xpoint[0].y);
for (int i=1; i<n; i++)
CGContextAddLineToPoint(gc_, xpoint[i].x, xpoint[i].y);
CGContextClosePath(gc_);
CGContextFillPath(gc_);
CGContextSetShouldAntialias(gc_, false);
}
void Fl_Quartz_Graphics_Driver::circle(double x, double y,double r) {
double xt = transform_x(x,y);
double yt = transform_y(x,y);
double rx = r * (m.c ? sqrt(m.a*m.a+m.c*m.c) : fabs(m.a));
double ry = r * (m.b ? sqrt(m.b*m.b+m.d*m.d) : fabs(m.d));
int llx = (int)rint(xt-rx);
int w = (int)rint(xt+rx)-llx;
int lly = (int)rint(yt-ry);
int h = (int)rint(yt+ry)-lly;
// Quartz warning: circle won't scale to current matrix!
// Last argument must be 0 (counter-clockwise) or it draws nothing under __LP64__ !!!!
CGContextSetShouldAntialias(gc_, true);
CGContextAddArc(gc_, xt, yt, (w+h)*0.25f, 0, 2.0f*M_PI, 0);
(what == POLYGON ? CGContextFillPath : CGContextStrokePath)(gc_);
CGContextSetShouldAntialias(gc_, false);
}
|
