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 "widget.h"
  25 #include "tag.h"
  26 #include "event.h"
  27 #include "common/util.h"
  28 #include "common/configopts.h"
  29
  30 extern AwesomeConf globalconf;
  31
  32 /** Check if at least one client is tagged with tag number t and is on screen
  33  * screen
  34  * \param screen screen number
  35  * \param t tag
  36  * \return True or False
  37  */
  38 static Bool
  39 isoccupied(Tag *t)
  40 {
  41     Client *c;
  42
  43     for(c = globalconf.clients; c; c = c->next)
  44         if(is_client_tagged(c, t) && !c->skip && c != globalconf.scratch.client)
  45             return True;
  46
  47     return False;
  48 }
  49
  50 static Bool
  51 isurgent(Tag *t)
  52 {
  53     Client *c;
  54
  55     for(c = globalconf.clients; c; c = c->next)
  56         if(is_client_tagged(c, t) && c->isurgent)
  57             return True;
  58
  59     return False;
  60 }
  61
  62 static style_t
  63 taglist_style_get(VirtScreen vscreen, Tag *tag)
  64 {
  65     if(tag->selected)
  66         return vscreen.styles.focus;
  67     else if(isurgent(tag))
  68         return vscreen.styles.urgent;
  69
  70     return vscreen.styles.normal;
  71 }
  72
  73 static int
  74 taglist_draw(Widget *widget,
  75              DrawCtx *ctx,
  76              int offset,
  77              int used __attribute__ ((unused)))
  78 {
  79     Tag *tag;
  80     Client *sel = globalconf.focus->client;
  81     VirtScreen vscreen = globalconf.screens[widget->statusbar->screen];
  82     int w = 0, flagsize;
  83     style_t style;
  84     area_t area;
  85
  86     flagsize = (vscreen.styles.normal.font->height + 2) / 3;
  87
  88     widget->area.width = 0;
  89
  90     for(tag = vscreen.tags; tag; tag = tag->next)
  91     {
  92         style = tag->selected ? vscreen.styles.focus : vscreen.styles.normal;
  93         widget->area.width += draw_textwidth(ctx->display, style.font, tag->name)
  94             + style.font->height;
  95     }
  96
  97     if(!widget->user_supplied_x)
  98         widget->area.x = widget_calculate_offset(widget->statusbar->width,
  99                                                  widget->area.width,
 100                                                  offset,
 101                                                  widget->alignment);
 102
 103     if(!widget->user_supplied_y)
 104         widget->area.y = 0;
 105
 106     widget->area.width = 0;
 107     for(tag = vscreen.tags; tag; tag = tag->next)
 108     {
 109         style = taglist_style_get(vscreen, tag);
 110         w = draw_textwidth(ctx->display, style.font, tag->name) + style.font->height;
 111         area.x = widget->area.x + widget->area.width;
 112         area.y = widget->area.y;
 113         area.width = w;
 114         area.height = widget->statusbar->height;
 115         draw_text(ctx, area,
 116                   AlignCenter,
 117                   style.font->height / 2,
 118                   tag->name,
 119                   style);
 120
 121         if(isoccupied(tag))
 122         {
 123             area_t rectangle = { widget->area.x + widget->area.width,
 124                                widget->area.y,
 125                                flagsize,
 126                                flagsize,
 127                                NULL, NULL };
 128             draw_rectangle(ctx, rectangle, 1.0, sel && is_client_tagged(sel, tag), style.fg);
 129         }
 130         widget->area.width += w;
 131     }
 132
 133     widget->area.height = widget->statusbar->height;
 134     return widget->area.width;
 135 }
 136
 137 static void
 138 taglist_button_press(Widget *widget, XButtonPressedEvent *ev)
 139 {
 140     VirtScreen vscreen = globalconf.screens[widget->statusbar->screen];
 141     Button *b;
 142     Tag *tag;
 143     char buf[4];
 144     int prev_width = 0, width = 0, i = 1;
 145     style_t style;
 146
 147     for(b = widget->buttons; b; b = b->next)
 148         if(ev->button == b->button && CLEANMASK(ev->state) == b->mod && b->func)
 149             switch(widget->statusbar->position)
 150             {
 151               case Top:
 152               case Bottom:
 153                 for(tag = vscreen.tags; tag; tag = tag->next, i++)
 154                 {
 155                     style = taglist_style_get(vscreen, tag);
 156                     width = draw_textwidth(globalconf.display, style.font, tag->name)
 157                         + style.font->height;
 158                     if(ev->x >= widget->area.x + prev_width
 159                        && ev->x < widget->area.x + prev_width + width)
 160                     {
 161                         snprintf(buf, sizeof(buf), "%d", i);
 162                         b->func(widget->statusbar->screen, buf);
 163                         return;
 164                     }
 165                    prev_width += width;
 166                 }
 167                 break;
 168               case Right:
 169                 for(tag = vscreen.tags; tag; tag = tag->next, i++)
 170                 {
 171                     style = taglist_style_get(vscreen, tag);
 172                     width = draw_textwidth(globalconf.display, style.font, tag->name) + style.font->height;
 173                     if(ev->y >= widget->area.x + prev_width
 174                        && ev->y < widget->area.x + prev_width + width)
 175                     {
 176                         snprintf(buf, sizeof(buf), "%d", i);
 177                         b->func(widget->statusbar->screen, buf);
 178                         return;
 179                     }
 180                     prev_width += width;
 181                 }
 182                 break;
 183               default:
 184                 for(tag = vscreen.tags; tag; tag = tag->next, i++)
 185                 {
 186                     style = taglist_style_get(vscreen, tag);
 187                     width = draw_textwidth(globalconf.display, style.font, tag->name) + style.font->height;
 188                     if(widget->statusbar->width - ev->y >= widget->area.x + prev_width
 189                        && widget->statusbar->width - ev->y < widget->area.x + prev_width + width)
 190                     {
 191                         snprintf(buf, sizeof(buf), "%d", i);
 192                         b->func(widget->statusbar->screen, buf);
 193                         return;
 194                     }
 195                     prev_width += width;
 196                 }
 197                 break;
 198             }
 199 }
 200
 201 Widget *
 202 taglist_new(Statusbar *statusbar, cfg_t *config)
 203 {
 204     Widget *w;
 205     w = p_new(Widget, 1);
 206     widget_common_new(w, statusbar, config);
 207     w->draw = taglist_draw;
 208     w->button_press = taglist_button_press;
 209     w->alignment = cfg_getalignment(config, "align");
 210
 211     /* Set cache property */
 212     w->cache.flags = WIDGET_CACHE_TAGS | WIDGET_CACHE_CLIENTS;
 213
 214     return w;
 215 }
 216
 217 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80