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
|
//
// "$Id$"
//
// Line style code for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2016 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:
//
// http://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
#ifndef FL_CFG_GFX_GDI_LINE_STYLE_CXX
#define FL_CFG_GFX_GDI_LINE_STYLE_CXX
#include "../../config_lib.h"
#include <FL/Fl.H>
#include <FL/fl_draw.H>
#include <FL/x.H>
#include <FL/Fl_Printer.H>
#include "../../flstring.h"
#include <stdio.h>
/**
\file Fl_GDI_Graphics_Driver_line_style.cxx
\brief Line style drawing utility hiding different platforms.
*/
#include "Fl_GDI_Graphics_Driver.H"
extern int fl_line_width_; // defined in src/fl_line_style.cxx
void Fl_GDI_Graphics_Driver::line_style(int style, int width, char* dashes) {
// save line width in global variable for X11 clipping
if (width == 0) fl_line_width_ = 1;
else fl_line_width_ = width>0 ? width : -width;
// According to Bill, the "default" cap and join should be the
// "fastest" mode supported for the platform. I don't know why
// they should be different (same graphics cards, etc., right?) MRS
static DWORD Cap[4]= {PS_ENDCAP_FLAT, PS_ENDCAP_FLAT, PS_ENDCAP_ROUND, PS_ENDCAP_SQUARE};
static DWORD Join[4]={PS_JOIN_ROUND, PS_JOIN_MITER, PS_JOIN_ROUND, PS_JOIN_BEVEL};
int s1 = PS_GEOMETRIC | Cap[(style>>8)&3] | Join[(style>>12)&3];
DWORD a[16]; int n = 0;
if (dashes && dashes[0]) {
s1 |= PS_USERSTYLE;
for (n = 0; n < 16 && *dashes; n++) a[n] = *dashes++;
} else {
s1 |= style & 0xff; // allow them to pass any low 8 bits for style
}
if ((style || n) && !width) width = 1; // fix cards that do nothing for 0?
LOGBRUSH penbrush = {BS_SOLID,fl_RGB(),0}; // can this be fl_brush()?
HPEN newpen = ExtCreatePen(s1, width, &penbrush, n, n ? a : 0);
if (!newpen) {
Fl::error("fl_line_style(): Could not create GDI pen object.");
return;
}
HPEN oldpen = (HPEN)SelectObject(gc_, newpen);
DeleteObject(oldpen);
DeleteObject(fl_current_xmap->pen);
fl_current_xmap->pen = newpen;
}
#endif // FL_CFG_GFX_GDI_LINE_STYLE_CXX
//
// End of "$Id$".
//
|
