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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/** \file lines.c
* Window for drawing simple line drawing
*/
/* XTrkCad - Model Railroad CAD
* Copyright (C) 2005 Dave Bullis,
* 2016 Martin Fischer <m_fischer@sf.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*
*/
#define GTK_DISABLE_SINGLE_INCLUDES
#define GDK_DISABLE_DEPRECATED
#define GTK_DISABLE_DEPRECATED
#define GSEAL_ENABLE
#include <cairo.h>
#include <gtk/gtk.h>
#include <gdk/gdk.h>
#include "gtkint.h"
/*
*****************************************************************************
*
* Lines
*
*****************************************************************************
*/
struct wLine_t {
WOBJ_COMMON
wBool_t visible;
int count;
wLines_t * lines;
};
/**
* Perform redrawing of the lines window
*
* \param b IN window handle
* \return
*/
static void linesRepaint(wControl_p b)
{
wLine_p bl = (wLine_p)(b);
int i;
wWin_p win = (wWin_p)(bl->parent);
GdkDrawable * window;
cairo_t *cr;
if (!bl->visible) {
return;
}
window = gtk_widget_get_window(win->widget);
cr = gdk_cairo_create(window);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_BUTT);
cairo_set_line_join(cr, CAIRO_LINE_JOIN_MITER);
for (i=0; i<bl->count; i++) {
cairo_set_line_width(cr, bl->lines[i].width);
cairo_move_to(cr, bl->lines[i].x0, bl->lines[i].y0);
cairo_line_to(cr, bl->lines[i].x1, bl->lines[i].y1);
cairo_stroke(cr);
}
cairo_destroy(cr);
}
/**
* Set visibility state of lines window
*
* \param bl IN window
* \param visible IN new visibility state
* \return
*/
void wlibLineShow(
wLine_p bl,
wBool_t visible)
{
bl->visible = visible;
}
/**
* Create a window consisting of several lines
*
* \param parent IN parent window
* \param labelStr IN label - unused
* \param count IN number of lines
* \param lines IN list of line coordinates
* \return handle of new window
*/
wLine_p wLineCreate(
wWin_p parent,
const char * labelStr,
int count,
wLines_t * lines)
{
wLine_p linesWindow;
int i;
linesWindow = (wLine_p)wlibAlloc(parent, B_LINES, 0, 0, labelStr,
sizeof *linesWindow, NULL);
linesWindow->visible = TRUE;
linesWindow->count = count;
linesWindow->lines = lines;
linesWindow->w = linesWindow->h = 0;
for (i=0; i<count; i++) {
if (lines[i].x0 > linesWindow->w) {
linesWindow->w = lines[i].x0;
}
if (lines[i].y0 > linesWindow->h) {
linesWindow->h = lines[i].y0;
}
if (lines[i].x1 > linesWindow->w) {
linesWindow->w = lines[i].x1;
}
if (lines[i].y1 > linesWindow->h) {
linesWindow->h = lines[i].y1;
}
}
linesWindow->repaintProc = linesRepaint;
wlibAddButton((wControl_p)linesWindow);
linesWindow->widget = NULL;
return linesWindow;
}
|
