Update Dialog on a specific BITMAP http://www.allegro.cc/forums/view/591139 Allegro.cc Forum Thread matthew@allegro.cc (Matthew Leverton) Thu, 26 Apr 2007 17:42:11 +0000

Hello.

basically I need draw my DIALOG on a specific BITMAP but this is not working.

Here is the code:

1/**\file SprEdit.c
2*
3* SprEdit Main Program
4*
5*\author Castagnier Mickaël
6*
7*\version 1.0
8*
9*\date 24/03/07
10*
11*/
12 
13 
14 
15#include <nilorea.h>
16 
17 
18DIALOG MainGui[] =
19{
20 /* (proc) (x) (y) (w) (h) (fg) (bg) (key) (flags) (d1) (d2) (dp) (dp2) (dp3) */
21 { d_radio_proc, 16, 696, 16, 16, 0, 0, 0, 0, 0, 0, "Full", NULL, NULL },
22 { d_radio_proc, 16, 712, 16, 16, 0, 0, 0, 0, 0, 0, "Masked", NULL, NULL },
23 { d_radio_proc, 16, 728, 16, 16, 0, 0, 0, 0, 0, 0, "Transparent", NULL, NULL },
24 { d_button_proc, 216, 704, 120, 16, 0, 0, 0, 0, 0, 0, "Set Hot Point", NULL, NULL },
25 { d_button_proc, 352, 704, 128, 16, 0, 0, 0, 0, 0, 0, "Set frame Delay", NULL, NULL },
26 { d_button_proc, 496, 704, 144, 16, 0, 0, 0, 0, 0, 0, "Next in Batch", NULL, NULL },
27 { d_button_proc, 352, 728, 128, 16, 0, 0, 0, 0, 0, 0, "Apply To All", NULL, NULL },
28 { d_button_proc, 216, 728, 120, 16, 0, 0, 0, 0, 0, 0, "Apply To All", NULL, NULL },
29 { d_button_proc, 496, 728, 144, 16, 0, 0, 0, 0, 0, 0, "Previous in Batch", NULL, NULL },
30 { NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL }
31};
32 
33DIALOG_PLAYER *gui;
34 
35int DONE = 0 ;
36 
37 
38 
39BITMAP *buf;
40 
41 
42 
43int main (int argc, char *argv[])
44{
45 
46 allegro_init();
47 install_timer();
48 install_mouse();
49 install_keyboard();
50 
51 gfx_mode( GFX_DIRECTX_WIN , 1024 , 768 , 0 , 0 , 32 , 0 , 0 , 0 , 0 );
52 
53 buf = create_bitmap( SCREEN_W , SCREEN_H );
54 clear( buf );
55 
56 gui_set_screen(buf);
57 
58 gui=init_dialog(MainGui,-1);
59 
60 
61 while( !DONE )
62 {
63 
64 clear_to_color( buf , makecol( 255,255,255 ) );
65 update_dialog(gui);
66 
67 
68 circle( buf , mouse_x , mouse_y , 5 , makecol( 255 , 255 , 0 ) );
69 
70 line( buf , mouse_x - 10 , mouse_y , mouse_x + 10 , mouse_y , makecol( 255 , 255 , 255 ) );
71 line( buf , mouse_x , mouse_y - 10 , mouse_x , mouse_y +10 , makecol( 255 , 255 , 255 ) );
72 
73 
74 blit( buf , screen , 0 , 0 , 0 , 0 , buf -> w , buf -> h );
75 
76 if( key[ KEY_ESC ] )
77 DONE = 1 ;
78 }
79 
80}END_OF_MAIN()

Where do am I wrong ?

_

]]> no-reply@allegro.cc (GullRaDriel) Tue, 24 Apr 2007 01:50:07 +0000

I think I tried to do the same thing a while ago and came to the conclusion that it could be broken. I switched my program to OpenLayer (for other reasons) and promptly forgot about it before following it up any further. (I could have been doing something wrong too though...)

Matt Weir.

]]> no-reply@allegro.cc (Matt Weir) Tue, 24 Apr 2007 04:31:55 +0000

A dialog uses a dirty rectangles-like system. So when you clear the bitmap, the dialog has no idea it needs to redraw itself, and thus doesn't, leaving your bitmap blank. Either don't clear the bitmap, or tell the dialog to redraw all of itself:
dialog_message(MainGui, MSG_DRAW, NULL);

]]> no-reply@allegro.cc (Kitty Cat) Tue, 24 Apr 2007 05:16:02 +0000

You needed to set the gui objects colors set_dialog_color() and broadcast_dialog_message() telling it needs to be redrawn

1#include <allegro.h>
2 
3 
4DIALOG MainGui[] =
5{
6 /* (proc) (x) (y) (w) (h) (fg) (bg) (key) (flags) (d1) (d2) (dp) (dp2) (dp3) */
7 { d_radio_proc, 16, 696, 16, 16, 0, 0, 0, 0, 0, 0, "Full", NULL, NULL },
8 { d_radio_proc, 16, 712, 16, 16, 0, 0, 0, 0, 0, 0, "Masked", NULL, NULL },
9 { d_radio_proc, 16, 728, 16, 16, 0, 0, 0, 0, 0, 0, "Transparent", NULL, NULL },
10 { d_button_proc, 216, 704, 120, 16, 0, 0, 0, 0, 0, 0, "Set Hot Point", NULL, NULL },
11 { d_button_proc, 352, 704, 128, 16, 0, 0, 0, 0, 0, 0, "Set frame Delay", NULL, NULL },
12 { d_button_proc, 496, 704, 144, 16, 0, 0, 0, 0, 0, 0, "Next in Batch", NULL, NULL },
13 { d_button_proc, 352, 728, 128, 16, 0, 0, 0, 0, 0, 0, "Apply To All", NULL, NULL },
14 { d_button_proc, 216, 728, 120, 16, 0, 0, 0, 0, 0, 0, "Apply To All", NULL, NULL },
15 { d_button_proc, 496, 728, 144, 16, 0, 0, 0, 0, 0, 0, "Previous in Batch", NULL, NULL },
16 { NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL }
17};
18 
19DIALOG_PLAYER *gui;
20 
21int DONE = 0 ;
22 
23 
24 
25BITMAP *buf;
26 
27 
28 
29int main (int argc, char *argv[])
30{
31 
32 allegro_init();
33 install_timer();
34 install_mouse();
35 install_keyboard();
36 
37 set_color_depth(32);
38 set_gfx_mode( GFX_DIRECTX_WIN , 1024 , 768 , 0 , 0);
39 
40 buf = create_bitmap( SCREEN_W , SCREEN_H );
41 clear( buf );
42 
43 
44 
45 gui_set_screen(buf);
46 show_mouse(buf);
47 set_dialog_color(MainGui, makecol(0,0,0), makecol(255,255,255));
48 
49 gui=init_dialog(MainGui,-1);
50 
51 while( !DONE )
52 {
53 
54 show_mouse(NULL);
55 
56 clear_to_color( buf , makecol( 255,255,255 ) );
57 
58 broadcast_dialog_message(MSG_DRAW, 0);
59 update_dialog(gui);
60 
61 
62 circle( buf , mouse_x , mouse_y , 5 , makecol( 255 , 255 , 0 ) );
63 
64 line( buf , mouse_x - 10 , mouse_y , mouse_x + 10 , mouse_y , makecol( 255 , 255 , 255 ) );
65 line( buf , mouse_x , mouse_y - 10 , mouse_x , mouse_y +10 , makecol( 255 , 255 , 255 ) );
66 
67 show_mouse(gui_get_screen());
68 
69 
70 blit( buf , screen , 0 , 0 , 0 , 0 , buf -> w , buf -> h );
71 
72 if( key[ KEY_ESC ] )
73 DONE = 1 ;
74 }
75 
76}END_OF_MAIN()

]]> no-reply@allegro.cc (Timorg) Tue, 24 Apr 2007 06:22:34 +0000

That solves my problem, thanks.

]]> no-reply@allegro.cc (GullRaDriel) Thu, 26 Apr 2007 17:42:11 +0000