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
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* filename: ximages.c *
* *
* UTIL C-source: Medical Image Conversion Utility *
* *
* purpose : image routines *
* *
* project : (X)MedCon by Erik Nolf *
* *
* Functions : XMdcRemovePreviousImages() - Remove old X images *
* XMdcImagesSetCursor() - Set cursor over X images *
* XMdcImagesCallbackExpose() - Images Expose callback *
* XMdcImagesCallbackClicked() - Images Clicked callback *
* XMdcBuildCurrentImages() - Build images for display *
* XMdcDisplayImages() - Display the images *
* XMdcImagesView() - Show the images (viewer) *
* *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* $Id: ximages.c,v 1.20 2004/10/21 23:48:39 enlf Exp $
*/
/*
Copyright (C) 1997-2004 by Erik Nolf
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.,
59 Place - Suite 330, Boston, MA 02111-1307, USA. */
/****************************************************************************
H E A D E R S
****************************************************************************/
#include <stdio.h>
#include "xmedcon.h"
/****************************************************************************
F U N C T I O N S
****************************************************************************/
#ifdef MDC_USE_SIGNAL_BLOCKER
/*
* MARK: dirty fix of bad button-press-event behaviour in _WIN32
*
* The button-press-events of our image's drawing areas seems to be
* "propagated" over all our widgets ... We got for example zoom or info
* windows by clicking on places we wouldn't expect this to happen.
*
* So we 're blocking this button-press-event whenever we leave the
* corresponding drawing area (and ofcourse, reallowing when entering)
*
* However, the gtk_signal_handler_block() function increments a number
* instead of using a simple boolean. Whenever the "enter_notify_event"
* is missed ... this number will never drop to zero again. And it does
* happen when widgets come in front of our drawing areas which are rebuild
* because of a color correction or colormap change.
*
* Our SignalBlocker struct should prevent the gtk_signal_handler_block()
* function being called several times ...
*
* Actual struct defined in xdefs.h:
typedef struct SignalBlocker_t{
guint id;
gboolean blocked;
}SignalBlocker;
*
*/
static gboolean XMdcSignalBlock(GtkWidget *widget, gpointer data)
{
SignalBlocker *signal;
signal = (SignalBlocker *)gtk_object_get_data(GTK_OBJECT(widget),"signal");
if (!signal->blocked) {
gtk_signal_handler_block(GTK_OBJECT(widget),signal->id);
signal->blocked = TRUE;
}
return(TRUE);
}
static gboolean XMdcSignalUnblock(GtkWidget *widget, gpointer data)
{
SignalBlocker *signal;
signal = (SignalBlocker *)gtk_object_get_data(GTK_OBJECT(widget),"signal");
if (signal->blocked) {
gtk_signal_handler_unblock(GTK_OBJECT(widget),signal->id);
signal->blocked = FALSE;
}
return(TRUE);
}
#endif
void XMdcRemovePreviousImages(void)
{
Uint32 i;
for (i=0; i<my.real_images_on_page; i++) {
gtk_widget_hide(my.image[i]);
gdk_pixbuf_unref(my.im[i]); my.im[i] = NULL;
}
}
void XMdcImagesSetCursor(GtkWidget *widget, gpointer data)
{
if (widget->window != NULL)
gdk_window_set_cursor (widget->window, handcursor);
}
gboolean XMdcImagesCallbackExpose(GtkWidget *widget, GdkEventExpose *event, Uint32 *nr)
{
GdkGC *gc = widget->style->white_gc;
Uint32 i = (Uint32)(*nr);
gint ex, ey, ew, eh, iw, ih, rw, rh;
if ( my.im[i] == NULL ) return(TRUE);
/* repaint the polluted drawable */
iw = gdk_pixbuf_get_width(my.im[i]);
ih = gdk_pixbuf_get_height(my.im[i]);
ex = event->area.x; ey = event->area.y;
ew = event->area.width; eh = event->area.height;
if ((ex < iw) && (ey < ih)) {
rw = iw - ex; rh = ih - ey;
gdk_pixbuf_render_to_drawable(my.im[i], widget->window, gc,
ex, ey, ex, ey, rw, rh,
sRenderSelection.Dither, 0, 0);
}
if ((ex + ew) > iw) {
rw = (ex + ew) - iw; rh = eh;
gdk_window_clear_area(widget->window, iw, ey, rw, rh);
}
if ((ey + eh) > ih) {
rh = (ey + eh) - ih; rw = ew;
gdk_window_clear_area(widget->window, ex, ih, rw, rh);
}
if (sLabelSelection.CurState == MDC_YES) {
XMdcPrintImageLabelIndex(widget,i);
XMdcPrintImageLabelTimes(widget,i);
}
return(TRUE);
}
gboolean XMdcImagesCallbackClicked(GtkWidget *widget, GdkEventButton *button, Uint32 *nr)
{
if (button->button == 1) {
/* zoom the image */
XMdcImagesZoom(widget,(Uint32)(*nr));
}
if (button->button == 2) {
/* print image info */
XMdcImagesInfo(widget,(Uint32)(*nr));
}
if (button->button == 3) {
/* color correction */
XMdcColGbcCorrectSel(widget,(Uint32)(*nr));
}
return(TRUE);
}
void XMdcBuildCurrentImages(void)
{
Uint32 i, r, c, ri;
Uint32 real_images;
float progress;
MdcDebugPrint("Building current images ...");
real_images = XMdcPagesGetNrImages();
/* get real_images_per_page and number of the beginning image */
if (real_images < my.images_per_page) {
/* always lesser images on page */
my.real_images_on_page = real_images;
my.startimage = my.curpage * real_images;
}else{
if (my.curpage == my.number_of_pages - 1) {
/* last page, probably less images on it */
my.real_images_on_page = my.fi->number - (my.curpage*my.images_per_page);
my.startimage = my.curpage * my.images_per_page;
}else{
/* other pages completely filled out */
my.real_images_on_page = my.images_per_page;
my.startimage = my.curpage * my.images_per_page;
}
}
progress = 1./(float)(my.real_images_on_page + 1);
/* build the images */
i = my.startimage; ri=0;
for (r=0; r<my.images_vertical; r++)
for (c=0; c<my.images_horizontal; c++,i++, ri++) {
#ifdef MDC_USE_SIGNAL_BLOCKER
SignalBlocker *signal = (SignalBlocker *)&my.sblkr[ri];
#endif
progress += 1./(float)(my.real_images_on_page + 1);
if (ri == my.real_images_on_page) break; /* get OUT, got all images */
my.realnumber[ri] = i;
my.im[ri] = XMdcBuildGdkPixbufFI(my.fi,i,sGbc.mod.vgbc);
if (my.image[ri] == NULL) {
my.image[ri] = gtk_drawing_area_new();
gtk_drawing_area_size(GTK_DRAWING_AREA(my.image[ri])
,(gint)(XMdcScaleW(my.fi->mwidth) + XMDC_IMAGE_BORDER)
,(gint)(XMdcScaleH(my.fi->mheight) + XMDC_IMAGE_BORDER));
gtk_widget_set_events (my.image[ri], GDK_EXPOSURE_MASK
| GDK_BUTTON_PRESS_MASK
#ifdef MDC_USE_SIGNAL_BLOCKER
| GDK_ENTER_NOTIFY_MASK
| GDK_LEAVE_NOTIFY_MASK
#endif
);
gtk_table_attach(GTK_TABLE(my.imgstable),my.image[ri],c,c+1,r,r+1,
GTK_FILL,GTK_FILL, 0, 0);
#ifdef MDC_USE_SIGNAL_BLOCKER
signal->id =
#endif
gtk_signal_connect (GTK_OBJECT(my.image[ri]), "button_press_event",
GTK_SIGNAL_FUNC(XMdcImagesCallbackClicked),
(Uint32 *)&my.imagenumber[ri]);
gtk_signal_connect (GTK_OBJECT(my.image[ri]),"expose_event",
GTK_SIGNAL_FUNC(XMdcImagesCallbackExpose),
(Uint32 *)&my.imagenumber[ri]);
#ifdef MDC_USE_SIGNAL_BLOCKER
gtk_signal_connect (GTK_OBJECT(my.image[ri]),"enter_notify_event",
GTK_SIGNAL_FUNC(XMdcSignalUnblock), NULL);
gtk_signal_connect (GTK_OBJECT(my.image[ri]),"leave_notify_event",
GTK_SIGNAL_FUNC(XMdcSignalBlock), NULL);
gtk_object_set_data(GTK_OBJECT(my.image[ri]),"signal",signal);
XMdcSignalBlock(my.image[ri],NULL);
#endif
XMdcImagesSetCursor(my.image[ri],NULL);
}
gtk_widget_show(my.image[ri]);
if (GTK_WIDGET_VISIBLE(my.viewwindow)) {
if (my.images_horizontal < 10) {
/* update after each two rows */
if (((ri+1)%(my.images_horizontal*2)) == 0)
XMdcProgressBar(MDC_PROGRESS_SET,progress,NULL);
}else{
/* update after each five rows */
if (((ri+1)%(my.images_horizontal*5)) == 0)
XMdcProgressBar(MDC_PROGRESS_SET,progress,NULL);
}
}else{
/* update after each image */
XMdcProgressBar(MDC_PROGRESS_SET,progress,NULL);
}
}
}
void XMdcDisplayImages(void)
{
XMdcProgressBar(MDC_PROGRESS_BEGIN,0.,"Preparing Viewer:");
XMdcSetImageScales();
XMdcGetBoardDimensions();
XMdcHandleBoardDimensions();
XMdcBuildViewerWindow();
XMdcBuildColorMap();
XMdcBuildCurrentImages();
XMdcResizeNeeded();
gtk_container_foreach(GTK_CONTAINER(my.imgstable),
(GtkCallback)XMdcImagesSetCursor,NULL);
}
void XMdcImagesView(GtkWidget *widget, gpointer data)
{
if (XMdcNoFileOpened()) return;
XMdcViewerShow();
}
|