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
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/* $Id: widget_image.c,v 1.3 2006/02/08 04:55:05 reinelt Exp $
*
* image widget handling
*
* Copyright (C) 2006 Michael Reinelt <reinelt@eunet.at>
* Copyright (C) 2006 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* $Log: widget_image.c,v $
* Revision 1.3 2006/02/08 04:55:05 reinelt
* moved widget registration to drv_generic_graphic
*
* Revision 1.2 2006/01/23 06:17:18 reinelt
* timer widget added
*
* Revision 1.1 2006/01/22 09:16:11 reinelt
* Image Widget framework added
*
*/
/*
* exported functions:
*
* WIDGET_CLASS Widget_Image
* the image widget
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include "debug.h"
#include "cfg.h"
#include "qprintf.h"
#include "evaluator.h"
#include "timer.h"
#include "widget.h"
#include "widget_image.h"
#ifdef HAVE_GD_GD_H
#include <gd/gd.h>
#define WITH_GD
#else
#ifdef HAVE_GD_H
#include <gd.h>
#define WITH_GD
#endif
#endif
#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif
static void widget_image_render (WIDGET_IMAGE *Image)
{
/* try to open file */
if (Image->file == NULL || Image->file[0] == '\0') {
}
}
static void widget_image_update(void *Self)
{
WIDGET *W = (WIDGET *) Self;
WIDGET_IMAGE *Image = W->data;
RESULT result = { 0, 0, 0, NULL };
/* process the parent only */
if (W->parent == NULL) {
/* evaluate expressions */
if (Image->file) {
free (Image->file);
Image->file = NULL;
}
if (Image->file_tree != NULL) {
Eval(Image->file_tree, &result);
Image->file = strdup(R2S(&result));
DelResult(&result);
}
Image->update = 0;
if (Image->update_tree != NULL) {
Eval(Image->update_tree, &result);
Image->update = R2N(&result);
if (Image->update < 0)
Image->update = 0;
DelResult(&result);
}
Image->visible = 1;
if (Image->visible_tree != NULL) {
Eval(Image->visible_tree, &result);
Image->visible = R2N(&result);
if (Image->visible < 0)
Image->visible = 0;
DelResult(&result);
}
/* render image into bitmap */
widget_image_render(Image);
}
error ("Fixme: We are at image_update");
/* finally, draw it! */
if (W->class->draw)
W->class->draw(W);
/* add a new one-shot timer */
timer_add(widget_image_update, Self, Image->update, 1);
}
int widget_image_init(WIDGET * Self)
{
char *section;
WIDGET_IMAGE *Image;
/* re-use the parent if one exists */
if (Self->parent == NULL) {
/* prepare config section */
/* strlen("Widget:")=7 */
section = malloc(strlen(Self->name) + 8);
strcpy(section, "Widget:");
strcat(section, Self->name);
Image = malloc(sizeof(WIDGET_IMAGE));
memset(Image, 0, sizeof(WIDGET_IMAGE));
/* initial size */
Image->width = 0;
Image->height = 0;
Image->bitmap = NULL;
Image->file = NULL;
/* get raw expressions (we evaluate them ourselves) */
Image->file_expr = cfg_get_raw(section, "file", NULL);
Image->update_expr = cfg_get_raw(section, "update", NULL);
Image->visible_expr = cfg_get_raw(section, "visible", NULL);
/* sanity checks */
if (Image->file_expr == NULL || *Image->file_expr == '\0') {
error("Warning: Image %s has no file", Self->name);
}
if (Image->update_expr == NULL || *Image->update_expr == '\0') {
error("Image %s has no update, using '100'", Self->name);
Image->update_expr = "100";
}
/* compile'em */
Compile(Image->file_expr, &Image->file_tree);
Compile(Image->update_expr, &Image->update_tree);
Compile(Image->visible_expr, &Image->visible_tree);
free(section);
Self->data = Image;
} else {
/* re-use the parent */
Self->data = Self->parent->data;
}
/* just do it! */
widget_image_update(Self);
return 0;
}
int widget_image_quit(WIDGET * Self)
{
if (Self) {
/* do not deallocate child widget! */
if (Self->parent == NULL) {
if (Self->data) {
WIDGET_IMAGE *Image = Self->data;
if (Image->bitmap)
free(Image->bitmap);
if (Image->file)
free(Image->file);
DelTree(Image->file_tree);
DelTree(Image->update_tree);
DelTree(Image->visible_tree);
free(Self->data);
Self->data = NULL;
}
}
}
return 0;
}
WIDGET_CLASS Widget_Image = {
name:"image",
type:WIDGET_TYPE_XY,
init:widget_image_init,
draw:NULL,
quit:widget_image_quit,
};
|
