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