wmweather+/animation.c

   1 #include "config.h"
   2
   3 /*  Copyright (C) 2002  Brad Jorsch <anomie@users.sourceforge.net>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  18 */
  19
  20 #include <stdio.h>
  21
  22 #include <X11/Xlib.h>
  23 #include <X11/xpm.h>
  24
  25 #include "wmgeneral/wmgeneral-x11.h"
  26 #include "wmgeneral/xpm_trans.h"
  27
  28 #include "wmweather+.h"
  29 #include "animation.h"
  30 #include "moon.h"
  31 #include "font.h"
  32
  33 #define P 4   /* Percent to increment by */
  34 #define X 4   /* Frames to wait before incrementing */
  35 #define M (((100/P)+1)*X)
  36
  37 static int heights[5]={ 11, 12, 14, 14, 19 };
  38
  39 void SetAnimation(struct animation *a, int x, int y, int sky, int obs, int vis,
  40                   int frz, int snow, int rain, int tstorm, int svtstorm,
  41                   double moon){
  42     int i;
  43
  44     a->changed=1;
  45     a->active=1;
  46     a->x=x;
  47     a->y=y;
  48     if(sky>=0 && sky<6) a->sky=sky*27;
  49     else a->sky=-1;
  50     if(vis<7 && obs>0 && vis>0 && obs<4){
  51         a->obs=obs*27-27;
  52         a->vis=256-236*(vis-1)/6;
  53     } else a->vis=0;
  54
  55     a->items[0]=frz;
  56     a->items[1]=snow;
  57     a->items[2]=rain;
  58     a->items[3]=tstorm;
  59     a->items[4]=svtstorm;
  60     for(i=0; i<5; i++){
  61         if(a->items[i]==0) continue;
  62         if(a->items[i]%P) a->items[i]=a->items[i]/P+1;
  63         else a->items[i]=a->items[i]/P;
  64         a->items[i]*=X;
  65         if(a->items[i]!=0) a->changed=1;
  66     }
  67     a->ac=0;
  68     a->moon=moon;
  69 }
  70
  71 void DoAnimation(struct animation *a){
  72     int i;
  73     int top, h;
  74
  75     /* Turned off? */
  76     if(!a->active) return;
  77
  78     /* Any parameters changed? If yes, draw */
  79     if(a->changed) goto doit;
  80
  81     /* Nothing changed, quit if not animating */
  82     if(!a->do_animate) return;
  83
  84     /* We are animating. If it's the first frame of a cycle, draw it */
  85     a->ac++; if(a->ac>=M){ a->ac=0; goto doit; }
  86
  87     /* Not the first frame, see if anything changed. If so, draw it */
  88     for(i=0; i<5; i++){
  89         if(a->ac>=a->items[i] && a->ac<=a->items[i]+X) goto doit;
  90     }
  91
  92     /* Just draw the counter... */
  93     if(a->show_counter) goto do_counter;
  94
  95     /* Nothing to draw, quit */
  96     return;
  97
  98 doit:
  99     if(a->min_pct!=a->old_pct){
 100         if(a->min_pct%P) a->pct=(a->min_pct/P+1)*X;
 101         else a->pct=(a->min_pct/P)*X;
 102         a->old_pct=a->min_pct;
 103     }
 104     a->changed=0;
 105
 106     if(!a->do_animate) a->ac=a->pct;
 107     copyPixmapArea(124, 18, 26, 31, a->x, a->y);
 108     if(a->sky!=-1){
 109         copySunMoon(a->x, a->y, a->moon);
 110         combineWithTrans(a->sky, 64, 26, 25, a->x, a->y);
 111     }
 112     if(a->vis>0) combineWithOpacity(a->obs, 89, 26, 25, a->x, a->y, a->vis);
 113     for(i=0; i<5; i++){
 114         if(a->items[i]==0 || a->ac>=a->items[i]+X) continue;
 115         h=heights[i];
 116         top=h;
 117         if(a->ac<X){
 118             h=h*a->ac/X;
 119         } else if(a->ac>=a->items[i] && a->ac<a->items[i]+X){
 120             h-=h*(a->ac%X)/X;
 121             top=h;
 122         }
 123         combineWithTrans(i*27, 129-top, 26, h, a->x, a->y+31-top);
 124     }
 125     if(a->show_counter){{
 126         char foo[5];
 127 do_counter:
 128         if(!a->do_animate){
 129             snprintf(foo, 5, "%d%%", a->min_pct);
 130         } else {
 131             for(i=0; i<100 && a->ac>((i+P-1)/P)*X; i++);
 132             snprintf(foo, 5, "%d%%", i);
 133         }
 134         i=GetStringWidth(foo);
 135         copyPixmapArea(124, 18, i+2, 7, a->x+(26-i-2)/2, a->y+12);
 136         DrawString(a->x+(26-i)/2, a->y+13, foo, 2);
 137     }}
 138 }