]> www.hackdaworld.org Git - my-code/dfb-photoshow.git/blob - dfb-photoshow.c
improved event stuff, though not very nice
[my-code/dfb-photoshow.git] / dfb-photoshow.c
1 /*
2  * dfb-photoshow.c
3  *
4  * build: gcc -o dfb-photoshow -O3 -Wall -I/usr/X11/include \
5  *        -I/usr/include/directfb dfb-photoshow.c
6  * usage: ./showdir <seconds> <directory>
7  *
8  * author: 
9  * hackbard@hackdaworld.dyndns.org
10  * download: 
11  * cvs -d:pserver:anonymous@hackdaworld.dyndns.org:/my-code co dfb-photoshow
12  *
13  */
14
15 #include <stdio.h>
16 #include <unistd.h>
17 #include <stdlib.h>
18 #include <directfb.h>
19
20 IDirectFB *dfb = NULL;
21 IDirectFBSurface *primary = NULL;
22 int screen_width  = 0;
23 int screen_height = 0;
24
25 #define DFBCHECK(x...) \
26 { \
27  DFBResult err=x; \
28  if(err!=DFB_OK) { \
29   fprintf(stderr,"file: %s , line: %d !\n\t",__FILE__,__LINE__); \
30   DirectFBErrorFatal( #x, err ); \
31  } \
32 }
33
34 IDirectFBInputDevice *keyboard=NULL;
35 IDirectFBSurface *logo=NULL;
36 IDirectFBFont *font=NULL;
37 IDirectFBEventBuffer *k_buf=NULL;
38
39 char *title_txt="directfb photoshow";
40 char *exp_txt="an image presenter ...";
41 char *hp_txt="http://hackdaworld.dyndns.org";
42 char *msg1_txt="(press key to continue ...)";
43
44 void clear_primary(void) {
45  DFBCHECK(primary->SetColor(primary,0x00,0x00,0x00,0x00));
46  DFBCHECK(primary->FillRectangle(primary,0,0,screen_width,screen_height));
47 }
48
49 int main(int argc,char **argv) {
50  int i,str_width;
51  DFBInputEvent k_event;
52  DFBSurfaceDescription dsc;
53  DFBFontDescription font_dsc;
54  IDirectFBImageProvider *img_prov;
55
56  DFBCHECK(DirectFBInit (&argc, &argv));
57
58  DFBCHECK(DirectFBCreate(&dfb));
59  DFBCHECK(dfb->SetCooperativeLevel(dfb,DFSCL_FULLSCREEN));
60
61  dsc.flags=DSDESC_CAPS;
62  dsc.caps=DSCAPS_PRIMARY|DSCAPS_FLIPPING;
63  DFBCHECK(dfb->CreateSurface(dfb,&dsc,&primary));
64
65  DFBCHECK(primary->GetSize(primary,&screen_width,&screen_height));
66  fprintf(stdout,"dimensions: %dx%d\n",screen_width,screen_height);
67
68  DFBCHECK(dfb->GetInputDevice(dfb,DIDID_KEYBOARD,&keyboard));
69  DFBCHECK(keyboard->CreateEventBuffer(keyboard,&k_buf));
70
71  /* title */
72  font_dsc.flags=DFDESC_HEIGHT;
73  font_dsc.height=screen_height/20;
74  DFBCHECK(dfb->CreateFont(dfb,"/usr/share/DFBSee/decker.ttf",&font_dsc,&font));
75  DFBCHECK(primary->SetFont(primary,font));
76  DFBCHECK(font->GetStringWidth(font,title_txt,-1,&str_width));
77  clear_primary();
78  DFBCHECK(primary->SetColor(primary,0x80,0x80,0xff,0xff));
79  DFBCHECK(primary->DrawString(primary,title_txt,-1,(screen_width-str_width)/2,screen_height/4,DSTF_LEFT));
80  /* explanation,homepage,msg */
81  font_dsc.height=screen_height/40;
82  DFBCHECK(dfb->CreateFont(dfb,"/usr/share/DFBSee/decker.ttf",&font_dsc,&font));
83  DFBCHECK(primary->SetFont(primary,font));
84  DFBCHECK(font->GetStringWidth(font,exp_txt,-1,&str_width));
85  DFBCHECK(primary->DrawString(primary,exp_txt,-1,(screen_width-str_width)/2,screen_height/2,DSTF_LEFT));
86  DFBCHECK(font->GetStringWidth(font,hp_txt,-1,&str_width));
87  DFBCHECK(primary->DrawString(primary,hp_txt,-1,(screen_width-str_width)/2,(screen_height/2)+font_dsc.height,DSTF_LEFT));
88  DFBCHECK(font->GetStringWidth(font,msg1_txt,-1,&str_width));
89  DFBCHECK(primary->DrawString(primary,msg1_txt,-1,(screen_width-str_width)/2,(screen_height/2)+3*font_dsc.height,DSTF_LEFT));
90  DFBCHECK(primary->Flip(primary,NULL,DSFLIP_WAITFORSYNC));
91  DFBCHECK(k_buf->WaitForEvent(k_buf));
92
93  /* display pictures */
94  DFBCHECK(k_buf->Reset(k_buf));
95  i=2;
96  while(i<argc) {
97   do {
98    if(k_event.type==DIET_KEYPRESS) {
99     int a;
100     puts("debug: key pressed!");
101     a=(int)k_event.key_id;
102     printf("debug: key id -> %d\n",a);
103     printf("\tp=%d,' '=%d\n",(int)DIKI_ESCAPE,(int)DIKI_SPACE);
104     if(a==(int)DIKI_ESCAPE) {
105      i=argc;
106      break;
107     }
108     if(a==(int)DIKI_SPACE) {
109      char *pause_txt="paused (press button to continue)";
110      DFBCHECK(font->GetStringWidth(font,pause_txt,-1,&str_width));
111      DFBCHECK(primary->DrawString(primary,pause_txt,-1,(screen_width-str_width)/2,screen_height/2,DSTF_LEFT));
112      DFBCHECK(primary->Flip(primary,NULL,DSFLIP_WAITFORSYNC));
113      DFBCHECK(k_buf->Reset(k_buf));
114      DFBCHECK(k_buf->WaitForEvent(k_buf));
115     }
116     DFBCHECK(k_buf->Reset(k_buf)); /* destroy space press */
117     DFBCHECK(k_buf->Reset(k_buf)); /* destroy space release */
118    }
119    DFBCHECK(dfb->CreateImageProvider(dfb,argv[i],&img_prov));
120    DFBCHECK(img_prov->GetSurfaceDescription(img_prov,&dsc));
121    DFBCHECK(dfb->CreateSurface(dfb,&dsc,&logo ));
122    DFBCHECK(img_prov->RenderTo(img_prov,logo,NULL));
123    img_prov->Release(img_prov);
124    DFBCHECK (primary->SetColor(primary,0x00,0x00,0x00,0x00));
125    DFBCHECK(primary->FillRectangle(primary,0,0,screen_width,screen_height));
126    DFBCHECK(primary->SetColor(primary,0x80,0x80,0xff,0xff));
127    DFBCHECK(primary->DrawLine(primary,0,0,screen_width-1,screen_height-1));
128    if((screen_width>=dsc.width)&&(screen_height>=dsc.height)) {
129     DFBCHECK(primary->Blit(primary,logo,NULL,(screen_width-dsc.width)/2,(screen_height-dsc.height)/2));
130    }
131    else {
132     DFBCHECK(primary->StretchBlit(primary,logo,NULL,NULL));
133    }
134    DFBCHECK(primary->Flip(primary,NULL,DSFLIP_WAITFORSYNC));
135    // sleep(atoi(argv[1]));
136    k_buf->WaitForEventWithTimeout(k_buf,atoi(argv[1]),0);
137    logo->Release(logo);
138    ++i;
139    if(i==argc) break;
140   } while(k_buf->GetEvent(k_buf,DFB_EVENT(&k_event))==DFB_OK);
141  }
142
143  font->Release(font);
144  k_buf->Release(k_buf);
145  keyboard->Release(keyboard);
146  logo->Release(logo);
147  primary->Release(primary);
148  dfb->Release(dfb);
149
150  return 23; /* ;) */
151 }