widgets/progressbar.c

   1 /*
   2  * progressbar.c - progress bar widget
   3  *
   4  * Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include <string.h>
  23 #include "util.h"
  24 #include "draw.h"
  25 #include "widget.h"
  26 #include "xutil.h"
  27 #include "screen.h"
  28
  29 extern AwesomeConf globalconf;
  30
  31 typedef struct
  32 {
  33     /** Percent 0 to 100 */
  34     int *percent;
  35     /** Width of the bars */
  36     int width;
  37     /** Left padding */
  38     int padding_left;
  39     /** Pixel between bars */
  40     int gap;
  41     /** Number of bars */
  42     int bars;
  43     /** Height 0-1, where 1 is height of statusbar */
  44     float height;
  45     /** Foreground color */
  46     XColor *fg;
  47     /** Background color */
  48     XColor *bg;
  49     /** Border color */
  50     XColor *bordercolor;
  51 } Data;
  52
  53 static int
  54 progressbar_draw(Widget *widget, DrawCtx *ctx, int offset,
  55                  int used __attribute__ ((unused)))
  56 {
  57     int i, width, pwidth, margin_top, pb_height, left_offset;
  58
  59     Data *d = widget->data;
  60
  61     if (!(d->bars))
  62         return 0;
  63
  64     width = d->width - d->padding_left;
  65
  66     if(!widget->user_supplied_x)
  67         widget->area.x = widget_calculate_offset(widget->statusbar->width,
  68                                                  d->width,
  69                                                  offset,
  70                                                  widget->alignment);
  71
  72     if(!widget->user_supplied_y)
  73         widget->area.y = 0;
  74
  75     margin_top = (int) (widget->statusbar->height * (1 - d->height)) / 2 + 0.5 + widget->area.y;
  76     pb_height = (int) ((widget->statusbar->height * d->height - (d->gap * (d->bars - 1))) / d->bars + 0.5);
  77     left_offset = widget->area.x + d->padding_left;
  78
  79     for(i = 0; i < d->bars; i++)
  80     {
  81         pwidth = (int) d->percent[i] ? ((width - 2) * d->percent[i]) / 100 : 0;
  82
  83         draw_rectangle(ctx,
  84                        left_offset, margin_top,
  85                        width, pb_height,
  86                        False, d->bordercolor[i]);
  87
  88         if(pwidth > 0)
  89             draw_rectangle(ctx,
  90                            left_offset + 1, margin_top + 1,
  91                            pwidth, pb_height - 2,
  92                            True, d->fg[i]);
  93
  94         if(width - 2 - pwidth > 0) /* not filled area */
  95             draw_rectangle(ctx,
  96                            left_offset + 1 + pwidth, margin_top + 1,
  97                            width - 2 - pwidth, pb_height - 2,
  98                            True, d->bg[i]);
  99
 100         margin_top += (pb_height + d->gap);
 101     }
 102
 103     widget->area.width = d->width;
 104     widget->area.height = widget->statusbar->height;
 105     return widget->area.width;
 106 }
 107
 108 static void
 109 progressbar_tell(Widget *widget, char *command)
 110 {
 111     Data *d = widget->data;
 112     int i = 0, percent;
 113     char * tok;
 114
 115     if(!command || !d->bars)
 116         return;
 117
 118     for (tok = strtok(command, ","); tok && i < d->bars; tok = strtok(NULL, ","), i++)
 119     {
 120         percent = atoi(tok);
 121         d->percent[i] = (percent < 0 ? 0 : (percent > 100 ? 100 : percent));
 122     }
 123 }
 124
 125 Widget *
 126 progressbar_new(Statusbar *statusbar, cfg_t *config)
 127 {
 128     Widget *w;
 129     Data *d;
 130     char *color;
 131     int i, phys_screen = get_phys_screen(statusbar->screen);
 132     cfg_t *cfg;
 133
 134
 135     w = p_new(Widget, 1);
 136     widget_common_new(w, statusbar, config);
 137     w->draw = progressbar_draw;
 138     w->tell = progressbar_tell;
 139     d = w->data = p_new(Data, 1);
 140     d->width = cfg_getint(config, "width");
 141
 142     if(!(d->bars = cfg_size(config, "bar")))
 143     {
 144         warn("progressbar widget needs at least one bar section\n");
 145         return w;
 146     }
 147
 148     d->bg = p_new(XColor, d->bars);
 149     d->fg = p_new(XColor, d->bars);
 150     d->bordercolor = p_new(XColor, d->bars);
 151     d->percent = p_new(int, d->bars);
 152
 153     for(i = 0; i < d->bars; i++)
 154     {
 155         cfg = cfg_getnsec(config, "bar", i);
 156
 157         if((color = cfg_getstr(cfg, "fg")))
 158             d->fg[i] = initxcolor(phys_screen, color);
 159         else
 160             d->fg[i] = globalconf.screens[statusbar->screen].colors_normal[ColFG];
 161
 162         if((color = cfg_getstr(cfg, "bg")))
 163             d->bg[i] = initxcolor(phys_screen, color);
 164         else
 165             d->bg[i] = globalconf.screens[statusbar->screen].colors_normal[ColBG];
 166
 167         if((color = cfg_getstr(cfg, "bordercolor")))
 168             d->bordercolor[i] = initxcolor(phys_screen, color);
 169         else
 170             d->bordercolor[i] = d->fg[i];
 171
 172     }
 173
 174
 175     d->height = cfg_getfloat(config, "height");
 176     d->gap = cfg_getint(config, "gap");
 177     d->padding_left = cfg_getint(config, "padding_left");
 178
 179     return w;
 180 }
 181 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80