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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <X11/StringDefs.h>
#include <X11/Intrinsic.h>
#include "../common/cmalloc.h"
#include "embed.h"
#if 0
#define DTRACE(s, t) fprintf(stderr, "%s, %s\n", s, t);
#else
#define DTRACE(s, t)
#endif
typedef struct s_embed_object {
char *filename;
unsigned int width, height;
Pixmap bitmap;
struct s_embed_object *next;
} embed_object;
static Display *display;
static Screen *screen;
static Pixel fg, bg;
static GC gc;
static embed_object *eo_list;
static embed_object *tag2object(char *tag)
{
embed_object *o;
DTRACE("tag2object", tag)
for (o = eo_list; o; o = o->next)
if (!strcmp(tag, o->filename)) return o;
return NULL;
}
int embed_init(Widget w)
{
unsigned long valuemask = 0;
XGCValues values;
DTRACE("embed_init", "")
display = XtDisplay(w);
screen = XtScreen(w);
gc = XCreateGC(display, XtWindow(w), valuemask, &values);
fg = BlackPixelOfScreen(screen);
XSetForeground(display, gc, fg);
bg = WhitePixelOfScreen(screen);
XSetBackground(display, gc, bg);
eo_list = NULL;
return EMBED_OK;
}
/* 970909: Changed XReadBitmapFileData to XReadBitmapFile. Fixes X11R5. */
char *embed_load(char *filename)
{
unsigned int width, height;
int x_hot, y_hot;
embed_object *o;
int i;
Pixmap bmp; /* for X11R5 */
DTRACE("embed_load", filename)
/* if the object is already loaded, unload and reload */
embed_unload(filename);
i = XReadBitmapFile(display, XDefaultRootWindow(display),
filename, &width, &height, &bmp, &x_hot, &y_hot);
if (i != BitmapSuccess) return NULL;
o = cmalloc(sizeof(embed_object));
if (!o) return NULL;
o->filename = cstrdup(filename); /* unique and recognizable */
o->bitmap = XCreatePixmap(display, XDefaultRootWindow(display),
width, height,
DefaultDepth(display, DefaultScreen(display)));
XCopyPlane(display, bmp, o->bitmap, gc, 0, 0, width, height, 0, 0, 1);
XFreePixmap(display, bmp);
o->width = width;
o->height = height;
o->next = eo_list;
eo_list = o;
return o->filename;
}
int embed_unload(char *tag)
{
embed_object *o = tag2object(tag);
embed_object *o1 = eo_list;
DTRACE("embed_unload", tag)
if (!o) return EMBED_ERR;
for (o1 = eo_list; o1; o1 = o1->next) {
if (o1->next == o) {
o1->next = o->next;
XFreePixmap(display, o->bitmap);
cfree(o->filename);
cfree(o);
return EMBED_OK;
}
}
return EMBED_ERR;
}
int embed_open(char *tag)
{
char cmd[1024], b[256];
char *p = "bitmap %s";
FILE *fp;
embed_object *o = tag2object(tag);
int found = 0;
if (!o) return EMBED_ERR;
fp = fopen(tag, "r");
if (!fp) return EMBED_ERR;
while (!found && fgets(b, 250, fp)) {
if (!strncmp(b, "EmBeD", 5)) {
found = 1;
strcpy(b, b+5);
p = strchr(b, '\n');
if (p) *p = '\0';
}
}
fclose(fp);
if (!found) {
fprintf(stderr, "Warning: no object info available\n");
strcpy(b, "bitmap %s");
}
sprintf(cmd, b, tag);
system(cmd);
return EMBED_OK;
}
int embed_save(char *tag, char *cmd, Pixmap bitmap)
{
int x, y;
unsigned int width, height;
unsigned int border_width;
unsigned int depth;
Window root;
FILE *fp;
XGetGeometry(display, bitmap, &root, &x, &y,
&width, &height, &border_width, &depth);
XWriteBitmapFile(display, tag, bitmap, width, height, 0, 0);
fp = fopen(tag, "a");
fprintf(fp, "/*\n");
fprintf(fp, "EmBeD%s\n", cmd);
fprintf(fp, "*/\n");
fclose(fp);
return EMBED_OK;
}
int embed_print(FILE *fp, char *tag, int x_base, int y_base)
{
embed_object *o = tag2object(tag);
if (!o) return EMBED_ERR;
fprintf(stderr, "No printing yet\n");
fprintf(fp, "newpath\n");
fprintf(fp, "%d %d moveto\n", x_base, y_base);
fprintf(fp, "%d %d lineto\n", x_base+o->width, y_base);
fprintf(fp, "%d %d lineto\n", x_base+o->width, y_base+o->height);
fprintf(fp, "%d %d lineto\n", x_base, y_base+o->height);
fprintf(fp, "closepath\n");
fprintf(fp, "stroke\n");
return EMBED_ERR;
}
int embed_size(char *tag, unsigned int *width, unsigned int *height)
{
embed_object *o = tag2object(tag);
DTRACE("embed_size", tag);
if (!o) return EMBED_ERR;
if (width) *width = o->width;
if (height) *height = o->height;
return EMBED_OK;
}
int embed_draw(Drawable d, int x, int y, char *tag)
{
embed_object *o = tag2object(tag);
DTRACE("embed_draw", tag)
if (!o) return EMBED_ERR;
XCopyArea(display, o->bitmap, d, gc, 0, 0, o->width, o->height, x, y);
return EMBED_OK;
}
|
