widgets/taglist.c

   1 /*
   2  * taglist.c - tag list widget
   3  *
   4  * Copyright © 2007 Aldo Cortesi <aldo@nullcube.com>
   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 "config.h"
  23 #include "client.h"
  24 #include "util.h"
  25 #include "widget.h"
  26 #include "tag.h"
  27 #include "event.h"
  28
  29 extern AwesomeConf globalconf;
  30
  31 /** Check if at least one client is tagged with tag number t and is on screen
  32  * screen
  33  * \param screen screen number
  34  * \param t tag
  35  * \return True or False
  36  */
  37 static Bool
  38 isoccupied(Tag *t)
  39 {
  40     Client *c;
  41
  42     for(c = globalconf.clients; c; c = c->next)
  43         if(is_client_tagged(c, t) && !c->skip)
  44             return True;
  45     return False;
  46 }
  47
  48 static Bool
  49 isurgent(Tag *t)
  50 {
  51     Client *c;
  52
  53     for(c = globalconf.clients; c; c = c->next)
  54         if(is_client_tagged(c, t) && c->isurgent)
  55             return True;
  56
  57     return False;
  58 }
  59
  60 static int
  61 taglist_draw(Widget *widget,
  62              DrawCtx *ctx,
  63              int offset,
  64              int used __attribute__ ((unused)))
  65 {
  66     Tag *tag;
  67     Client *sel = globalconf.focus->client;
  68     VirtScreen vscreen = globalconf.screens[widget->statusbar->screen];
  69     int w = 0, flagsize;
  70     XColor *colors;
  71     Area area;
  72
  73     flagsize = (vscreen.font->height + 2) / 3;
  74
  75     widget->area.width = 0;
  76
  77     for(tag = vscreen.tags; tag; tag = tag->next)
  78         widget->area.width += draw_textwidth(vscreen.font, tag->name) + vscreen.font->height;
  79
  80     if(!widget->user_supplied_x)
  81         widget->area.x = widget_calculate_offset(widget->statusbar->width,
  82                                                  widget->area.width,
  83                                                  offset,
  84                                                  widget->alignment);
  85
  86     if(!widget->user_supplied_y)
  87         widget->area.y = 0;
  88
  89     widget->area.width = 0;
  90     for(tag = vscreen.tags; tag; tag = tag->next)
  91     {
  92         w = draw_textwidth(vscreen.font, tag->name) + vscreen.font->height;
  93         if(tag->selected)
  94             colors = vscreen.colors_selected;
  95         else if(isurgent(tag))
  96             colors = vscreen.colors_urgent;
  97         else
  98             colors = vscreen.colors_normal;
  99         area.x = widget->area.x + widget->area.width;
 100         area.y = widget->area.y;
 101         area.width = w;
 102         area.height = widget->statusbar->height;
 103         draw_text(ctx, area,
 104                   AlignCenter,
 105                   vscreen.font->height / 2,
 106                   vscreen.font,
 107                   tag->name,
 108                   colors[ColFG],
 109                   colors[ColBG]);
 110         if(isoccupied(tag))
 111         {
 112             Area rectangle = { widget->area.x + widget->area.width,
 113                                widget->area.y,
 114                                flagsize,
 115                                flagsize };
 116             draw_rectangle(ctx, rectangle, sel && is_client_tagged(sel, tag), colors[ColFG]);
 117         }
 118         widget->area.width += w;
 119     }
 120
 121     widget->area.height = widget->statusbar->height;
 122     return widget->area.width;
 123 }
 124
 125 static void
 126 taglist_button_press(Widget *widget, XButtonPressedEvent *ev)
 127 {
 128     VirtScreen vscreen = globalconf.screens[widget->statusbar->screen];
 129     Button *b;
 130     Tag *tag;
 131     char buf[4];
 132     int prev_width = 0, width = 0, i = 1;
 133
 134     for(b = widget->buttons; b; b = b->next)
 135         if(ev->button == b->button && CLEANMASK(ev->state) == b->mod && b->func)
 136             switch(widget->statusbar->position)
 137             {
 138               case Top:
 139               case Bottom:
 140                 for(tag = vscreen.tags; tag; tag = tag->next, i++)
 141                 {
 142                     width = draw_textwidth(vscreen.font, tag->name) + vscreen.font->height;
 143                     if(ev->x >= widget->area.x + prev_width
 144                        && ev->x < widget->area.x + prev_width + width)
 145                     {
 146                         snprintf(buf, sizeof(buf), "%d", i);
 147                         b->func(widget->statusbar->screen, buf);
 148                         return;
 149                     }
 150                    prev_width += width;
 151                 }
 152                 break;
 153               case Right:
 154                 for(tag = vscreen.tags; tag; tag = tag->next, i++)
 155                 {
 156                     width = draw_textwidth(vscreen.font, tag->name) + vscreen.font->height;
 157                     if(ev->y >= widget->area.x + prev_width
 158                        && ev->y < widget->area.x + prev_width + width)
 159                     {
 160                         snprintf(buf, sizeof(buf), "%d", i);
 161                         b->func(widget->statusbar->screen, buf);
 162                         return;
 163                     }
 164                     prev_width += width;
 165                 }
 166                 break;
 167               default:
 168                 for(tag = vscreen.tags; tag; tag = tag->next, i++)
 169                 {
 170                     width = draw_textwidth(vscreen.font, tag->name) + vscreen.font->height;
 171                     if(widget->statusbar->width - ev->y >= widget->area.x + prev_width
 172                        && widget->statusbar->width - ev->y < widget->area.x + prev_width + width)
 173                     {
 174                         snprintf(buf, sizeof(buf), "%d", i);
 175                         b->func(widget->statusbar->screen, buf);
 176                         return;
 177                     }
 178                     prev_width += width;
 179                 }
 180                 break;
 181             }
 182 }
 183
 184 Widget *
 185 taglist_new(Statusbar *statusbar, cfg_t *config)
 186 {
 187     Widget *w;
 188     w = p_new(Widget, 1);
 189     widget_common_new(w, statusbar, config);
 190     w->draw = taglist_draw;
 191     w->button_press = taglist_button_press;
 192
 193     /* Set cache property */
 194     w->cache.flags = WIDGET_CACHE_TAGS | WIDGET_CACHE_CLIENTS;
 195
 196     return w;
 197 }
 198
 199 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80