statusbar.c

   1 /*
   2  * statusbar.c - statusbar functions
   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 <stdio.h>
  23 #include <math.h>
  24
  25 #include "statusbar.h"
  26 #include "screen.h"
  27 #include "tag.h"
  28 #include "widget.h"
  29 #include "window.h"
  30
  31 extern AwesomeConf globalconf;
  32
  33 static void
  34 statusbar_position_update(Statusbar *statusbar)
  35 {
  36     Statusbar *sb;
  37     area_t area;
  38
  39     if(statusbar->position == Off)
  40     {
  41         XUnmapWindow(globalconf.display, statusbar->sw->window);
  42         return;
  43     }
  44
  45     XMapRaised(globalconf.display, statusbar->sw->window);
  46
  47     /* Top and Bottom Statusbar have prio */
  48     if(statusbar->position == Top || statusbar->position == Bottom)
  49         area = screen_get_area(statusbar->screen,
  50                                NULL,
  51                                &globalconf.screens[statusbar->screen].padding);
  52     else
  53         area = screen_get_area(statusbar->screen,
  54                                globalconf.screens[statusbar->screen].statusbar,
  55                                &globalconf.screens[statusbar->screen].padding);
  56
  57     for(sb = globalconf.screens[statusbar->screen].statusbar; sb && sb != statusbar; sb = sb->next)
  58         switch(sb->position)
  59         {
  60           case Top:
  61             if(sb->position == statusbar->position)
  62                 area.y += sb->height;
  63             break;
  64           case Bottom:
  65             if(sb->position == statusbar->position)
  66                 area.height -= sb->height;
  67             break;
  68           case Left:
  69             /* we need to re-add our own value removed in the
  70             * screen_get_area computation */
  71             if(statusbar->position == Left
  72                || statusbar->position == Right)
  73             {
  74                 area.x -= statusbar->sw->geometry.width;
  75                 area.width += statusbar->sw->geometry.width;
  76             }
  77             break;
  78           case Right:
  79             if(statusbar->position == Left
  80                || statusbar->position == Right)
  81                 area.width += statusbar->sw->geometry.width;
  82             break;
  83           default:
  84             break;
  85         }
  86
  87     switch(statusbar->position)
  88     {
  89       case Top:
  90         simplewindow_move(statusbar->sw, area.x, area.y);
  91         break;
  92       case Bottom:
  93         simplewindow_move(statusbar->sw, area.x, (area.y + area.height) - statusbar->sw->geometry.height);
  94         break;
  95       case Left:
  96         simplewindow_move(statusbar->sw, area.x - statusbar->sw->geometry.width,
  97                           (area.y + area.height) - statusbar->sw->geometry.height);
  98         break;
  99       case Right:
 100         simplewindow_move(statusbar->sw, area.x + area.width, area.y);
 101         break;
 102       default:
 103         break;
 104     }
 105 }
 106
 107 static void
 108 statusbar_draw(Statusbar *statusbar)
 109 {
 110     Widget *widget;
 111     int left = 0, right = 0;
 112     area_t rectangle = { 0, 0, 0, 0, NULL, NULL };
 113
 114     rectangle.width = statusbar->width;
 115     rectangle.height = statusbar->height;
 116     draw_rectangle(statusbar->ctx, rectangle, 1.0, True,
 117                    globalconf.screens[statusbar->screen].styles.normal.bg);
 118
 119     for(widget = statusbar->widgets; widget; widget = widget->next)
 120         if (widget->alignment == AlignLeft)
 121         {
 122             widget->cache.needs_update = False;
 123             left += widget->draw(widget, statusbar->ctx, left, (left + right));
 124         }
 125
 126     /* renders right widget from last to first */
 127     for(widget = *widget_list_last(&statusbar->widgets);
 128         widget;
 129         widget = widget_list_prev(&statusbar->widgets, widget))
 130         if (widget->alignment == AlignRight)
 131         {
 132             widget->cache.needs_update = False;
 133             right += widget->draw(widget, statusbar->ctx, right, (left + right));
 134         }
 135
 136     for(widget = statusbar->widgets; widget; widget = widget->next)
 137         if (widget->alignment == AlignFlex)
 138         {
 139             widget->cache.needs_update = False;
 140             left += widget->draw(widget, statusbar->ctx, left, (left + right));
 141         }
 142
 143     switch(statusbar->position)
 144     {
 145         case Right:
 146           draw_rotate(statusbar->ctx, statusbar->sw->drawable,
 147                       statusbar->ctx->height, statusbar->ctx->width,
 148                       M_PI_2, statusbar->height, 0);
 149           break;
 150         case Left:
 151           draw_rotate(statusbar->ctx, statusbar->sw->drawable,
 152                       statusbar->ctx->height, statusbar->ctx->width,
 153                       - M_PI_2, 0, statusbar->width);
 154           break;
 155         default:
 156           break;
 157     }
 158
 159     statusbar_display(statusbar);
 160 }
 161
 162 void
 163 statusbar_display(Statusbar *statusbar)
 164 {
 165     /* don't waste our time */
 166     if(statusbar->position != Off)
 167         simplewindow_refresh_drawable(statusbar->sw, statusbar->phys_screen);
 168 }
 169
 170 void
 171 statusbar_preinit(Statusbar *statusbar)
 172 {
 173     if(statusbar->height <= 0)
 174         /* 1.5 as default factor, it fits nice but no one knows why */
 175         statusbar->height = 1.5 * MAX(globalconf.screens[statusbar->screen].styles.normal.font->height,
 176                                       MAX(globalconf.screens[statusbar->screen].styles.focus.font->height,
 177                                           globalconf.screens[statusbar->screen].styles.urgent.font->height));
 178 }
 179
 180 void
 181 statusbar_init(Statusbar *statusbar)
 182 {
 183     Statusbar *sb;
 184     Drawable dw;
 185     int phys_screen = screen_virttophys(statusbar->screen);
 186     area_t area = screen_get_area(statusbar->screen,
 187                                 globalconf.screens[statusbar->screen].statusbar,
 188                                 &globalconf.screens[statusbar->screen].padding);
 189
 190     statusbar->phys_screen = phys_screen;
 191
 192     /* Top and Bottom Statusbar have prio */
 193     for(sb = globalconf.screens[statusbar->screen].statusbar; sb; sb = sb->next)
 194         switch(sb->position)
 195         {
 196           case Left:
 197           case Right:
 198             area.width += sb->height;
 199             break;
 200           default:
 201             break;
 202         }
 203
 204     if(statusbar->width <= 0)
 205     {
 206         if(statusbar->position == Right || statusbar->position == Left)
 207             statusbar->width = area.height;
 208         else
 209             statusbar->width = area.width;
 210     }
 211
 212     switch(statusbar->position)
 213     {
 214       case Right:
 215       case Left:
 216             statusbar->sw =
 217                  simplewindow_new(globalconf.display, phys_screen, 0, 0,
 218                                   statusbar->height, statusbar->width, 0);
 219             break;
 220       default:
 221             statusbar->sw =
 222                 simplewindow_new(globalconf.display, phys_screen, 0, 0,
 223                                  statusbar->width, statusbar->height, 0);
 224             break;
 225     }
 226
 227     widget_calculate_alignments(statusbar->widgets);
 228
 229     statusbar_position_update(statusbar);
 230
 231     switch(statusbar->position)
 232     {
 233       case Off:
 234         return;
 235       case Right:
 236       case Left:
 237         /* we need a new pixmap this way [     ] to render */
 238         dw = XCreatePixmap(globalconf.display,
 239                            RootWindow(globalconf.display, phys_screen),
 240                            statusbar->width, statusbar->height,
 241                            DefaultDepth(globalconf.display, phys_screen));
 242         statusbar->ctx = draw_context_new(globalconf.display,
 243                                           phys_screen,
 244                                           statusbar->width,
 245                                           statusbar->height,
 246                                           dw);
 247         break;
 248       default:
 249         statusbar->ctx = draw_context_new(globalconf.display,
 250                                           phys_screen,
 251                                           statusbar->width,
 252                                           statusbar->height,
 253                                           statusbar->sw->drawable);
 254         break;
 255     }
 256
 257
 258     statusbar_draw(statusbar);
 259 }
 260
 261 void
 262 statusbar_refresh()
 263 {
 264     int screen;
 265     Statusbar *statusbar;
 266     Widget *widget;
 267
 268     for(screen = 0; screen < globalconf.screens_info->nscreen; screen++)
 269         for(statusbar = globalconf.screens[screen].statusbar;
 270             statusbar;
 271             statusbar = statusbar->next)
 272             for(widget = statusbar->widgets; widget; widget = widget->next)
 273                 if(widget->cache.needs_update)
 274                 {
 275                     statusbar_draw(statusbar);
 276                     break;
 277                 }
 278 }
 279
 280 static Statusbar *
 281 statusbar_get_byname(int screen, const char *name)
 282 {
 283     Statusbar *sb;
 284
 285     for(sb = globalconf.screens[screen].statusbar; sb; sb = sb->next)
 286         if(!a_strcmp(sb->name, name))
 287             return sb;
 288
 289     return NULL;
 290 }
 291
 292 static void
 293 statusbar_toggle(Statusbar *statusbar)
 294 {
 295     if(statusbar->position == Off)
 296         statusbar->position = (statusbar->dposition == Off) ? Top : statusbar->dposition;
 297     else
 298         statusbar->position = Off;
 299
 300     globalconf.screens[statusbar->screen].need_arrange = True;
 301 }
 302
 303 /** Toggle statusbar
 304  * \param screen Screen ID
 305  * \param arg statusbar name
 306  * \ingroup ui_callback
 307  */
 308 void
 309 uicb_statusbar_toggle(int screen, char *arg)
 310 {
 311     Statusbar *sb = statusbar_get_byname(screen, arg);
 312
 313     if(sb)
 314         statusbar_toggle(sb);
 315     else
 316         for(sb = globalconf.screens[screen].statusbar; sb; sb = sb->next)
 317             statusbar_toggle(sb);
 318
 319     for(sb = globalconf.screens[screen].statusbar; sb; sb = sb->next)
 320         statusbar_position_update(sb);
 321 }
 322
 323
 324 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80