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->width = 0;
  74
  75     for(tag = vscreen.tags; tag; tag = tag->next)
  76         widget->width += textwidth(vscreen.font, tag->name) + vscreen.font->height;
  77
  78     widget->location = widget_calculate_offset(widget->statusbar->width,
  79                                                widget->width,
  80                                                offset,
  81                                                widget->alignment);
  82
  83     widget->width = 0;
  84     for(tag = vscreen.tags; tag; tag = tag->next)
  85     {
  86         w = textwidth(vscreen.font, tag->name) + vscreen.font->height;
  87         if(tag->selected)
  88             colors = vscreen.colors_selected;
  89         else if(isurgent(tag))
  90             colors = vscreen.colors_urgent;
  91         else
  92             colors = vscreen.colors_normal;
  93         draw_text(ctx,
  94                   widget->location + widget->width, 0,
  95                   w, widget->statusbar->height,
  96                   AlignCenter,
  97                   vscreen.font->height / 2,
  98                   vscreen.font,
  99                   tag->name,
 100                   colors[ColFG],
 101                   colors[ColBG]);
 102         if(isoccupied(tag))
 103             draw_rectangle(ctx, widget->location + widget->width, 0, flagsize, flagsize,
 104                            sel && is_client_tagged(sel, tag), colors[ColFG]);
 105         widget->width += w;
 106     }
 107
 108     return widget->width;
 109 }
 110
 111 static void
 112 taglist_button_press(Widget *widget, XButtonPressedEvent *ev)
 113 {
 114     VirtScreen vscreen = globalconf.screens[widget->statusbar->screen];
 115     Button *b;
 116     Tag *tag;
 117     char buf[4];
 118     int prev_width = 0, width = 0, i = 1;
 119
 120     for(b = widget->buttons; b; b = b->next)
 121         if(ev->button == b->button && CLEANMASK(ev->state) == b->mod && b->func)
 122             switch(widget->statusbar->position)
 123             {
 124               case Top:
 125               case Bottom:
 126                 for(tag = vscreen.tags; tag; tag = tag->next, i++)
 127                 {
 128                     width = textwidth(vscreen.font, tag->name) + vscreen.font->height;
 129                     if(ev->x >= widget->location + prev_width
 130                        && ev->x <= widget->location + prev_width + width)
 131                     {
 132                         snprintf(buf, sizeof(buf), "%d", i);
 133                         b->func(widget->statusbar->screen, buf);
 134                         return;
 135                     }
 136                    prev_width += width;
 137                 }
 138                 break;
 139               case Right:
 140                 for(tag = vscreen.tags; tag; tag = tag->next, i++)
 141                 {
 142                     width = textwidth(vscreen.font, tag->name) + vscreen.font->height;
 143                     if(ev->y >= widget->location + prev_width
 144                        && ev->y <= widget->location + 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               default:
 154                 for(tag = vscreen.tags; tag; tag = tag->next, i++)
 155                 {
 156                     width = textwidth(vscreen.font, tag->name) + vscreen.font->height;
 157                     if(widget->statusbar->width - ev->y >= widget->location + prev_width
 158                        && widget->statusbar->width - ev->y <= widget->location + 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             }
 168 }
 169
 170 Widget *
 171 taglist_new(Statusbar *statusbar, cfg_t *config)
 172 {
 173     Widget *w;
 174     w = p_new(Widget, 1);
 175     widget_common_new(w, statusbar, config);
 176     w->draw = taglist_draw;
 177     w->button_press = taglist_button_press;
 178     return w;
 179 }
 180
 181 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80