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 #include <xcb/xcb.h>
  25 #include <xcb/xcb_aux.h>
  26
  27 #include "statusbar.h"
  28 #include "screen.h"
  29 #include "tag.h"
  30 #include "widget.h"
  31 #include "window.h"
  32
  33 extern AwesomeConf globalconf;
  34
  35 static void
  36 statusbar_position_update(Statusbar *statusbar)
  37 {
  38     Statusbar *sb;
  39     area_t area;
  40
  41     if(statusbar->position == Off)
  42     {
  43         xcb_unmap_window(globalconf.connection, statusbar->sw->window);
  44         return;
  45     }
  46
  47     xutil_map_raised(globalconf.connection, statusbar->sw->window);
  48
  49     /* Top and Bottom Statusbar have prio */
  50     if(statusbar->position == Top || statusbar->position == Bottom)
  51         area = screen_get_area(statusbar->screen,
  52                                NULL,
  53                                &globalconf.screens[statusbar->screen].padding);
  54     else
  55         area = screen_get_area(statusbar->screen,
  56                                globalconf.screens[statusbar->screen].statusbar,
  57                                &globalconf.screens[statusbar->screen].padding);
  58
  59     for(sb = globalconf.screens[statusbar->screen].statusbar; sb && sb != statusbar; sb = sb->next)
  60         switch(sb->position)
  61         {
  62           case Top:
  63             if(sb->position == statusbar->position)
  64                 area.y += sb->height;
  65             break;
  66           case Bottom:
  67             if(sb->position == statusbar->position)
  68                 area.height -= sb->height;
  69             break;
  70           case Left:
  71             /* we need to re-add our own value removed in the
  72             * screen_get_area computation */
  73             if(statusbar->position == Left
  74                || statusbar->position == Right)
  75             {
  76                 area.x -= statusbar->sw->geometry.width;
  77                 area.width += statusbar->sw->geometry.width;
  78             }
  79             break;
  80           case Right:
  81             if(statusbar->position == Left
  82                || statusbar->position == Right)
  83                 area.width += statusbar->sw->geometry.width;
  84             break;
  85           default:
  86             break;
  87         }
  88
  89     switch(statusbar->position)
  90     {
  91       case Top:
  92         simplewindow_move(statusbar->sw, area.x, area.y);
  93         break;
  94       case Bottom:
  95         simplewindow_move(statusbar->sw, area.x, (area.y + area.height) - statusbar->sw->geometry.height);
  96         break;
  97       case Left:
  98         simplewindow_move(statusbar->sw, area.x - statusbar->sw->geometry.width,
  99                           (area.y + area.height) - statusbar->sw->geometry.height);
 100         break;
 101       case Right:
 102         simplewindow_move(statusbar->sw, area.x + area.width, area.y);
 103         break;
 104       default:
 105         break;
 106     }
 107 }
 108
 109 static void
 110 statusbar_draw(Statusbar *statusbar)
 111 {
 112     Widget *widget;
 113     int left = 0, right = 0;
 114     area_t rectangle = { 0, 0, 0, 0, NULL, NULL };
 115
 116     rectangle.width = statusbar->width;
 117     rectangle.height = statusbar->height;
 118     draw_rectangle(statusbar->ctx, rectangle, 1.0, true,
 119                    globalconf.screens[statusbar->screen].styles.normal.bg);
 120
 121     for(widget = statusbar->widgets; widget; widget = widget->next)
 122         if (widget->alignment == AlignLeft)
 123         {
 124             widget->cache.needs_update = false;
 125             left += widget->draw(widget, statusbar->ctx, left, (left + right));
 126         }
 127
 128     /* renders right widget from last to first */
 129     for(widget = *widget_list_last(&statusbar->widgets);
 130         widget;
 131         widget = widget_list_prev(&statusbar->widgets, widget))
 132         if (widget->alignment == AlignRight)
 133         {
 134             widget->cache.needs_update = false;
 135             right += widget->draw(widget, statusbar->ctx, right, (left + right));
 136         }
 137
 138     for(widget = statusbar->widgets; widget; widget = widget->next)
 139         if (widget->alignment == AlignFlex)
 140         {
 141             widget->cache.needs_update = false;
 142             left += widget->draw(widget, statusbar->ctx, left, (left + right));
 143         }
 144
 145     switch(statusbar->position)
 146     {
 147         case Right:
 148           draw_rotate(statusbar->ctx, statusbar->sw->drawable,
 149                       statusbar->ctx->height, statusbar->ctx->width,
 150                       M_PI_2, statusbar->height, 0);
 151           break;
 152         case Left:
 153           draw_rotate(statusbar->ctx, statusbar->sw->drawable,
 154                       statusbar->ctx->height, statusbar->ctx->width,
 155                       - M_PI_2, 0, statusbar->width);
 156           break;
 157         default:
 158           break;
 159     }
 160
 161     statusbar_display(statusbar);
 162 }
 163
 164 void
 165 statusbar_display(Statusbar *statusbar)
 166 {
 167     /* don't waste our time */
 168     if(statusbar->position != Off)
 169         simplewindow_refresh_drawable(statusbar->sw, statusbar->phys_screen);
 170 }
 171
 172 void
 173 statusbar_preinit(Statusbar *statusbar)
 174 {
 175     if(statusbar->height <= 0)
 176         /* 1.5 as default factor, it fits nice but no one knows why */
 177         statusbar->height = 1.5 * MAX(globalconf.screens[statusbar->screen].styles.normal.font->height,
 178                                       MAX(globalconf.screens[statusbar->screen].styles.focus.font->height,
 179                                           globalconf.screens[statusbar->screen].styles.urgent.font->height));
 180 }
 181
 182 void
 183 statusbar_init(Statusbar *statusbar)
 184 {
 185     Statusbar *sb;
 186     xcb_drawable_t dw;
 187     xcb_screen_t *s = NULL;
 188     int phys_screen = screen_virttophys(statusbar->screen);
 189     area_t area = screen_get_area(statusbar->screen,
 190                                   globalconf.screens[statusbar->screen].statusbar,
 191                                   &globalconf.screens[statusbar->screen].padding);
 192
 193     statusbar->phys_screen = phys_screen;
 194
 195     /* Top and Bottom Statusbar have prio */
 196     for(sb = globalconf.screens[statusbar->screen].statusbar; sb; sb = sb->next)
 197         switch(sb->position)
 198         {
 199           case Left:
 200           case Right:
 201             area.width += sb->height;
 202             break;
 203           default:
 204             break;
 205         }
 206
 207     if(statusbar->width <= 0)
 208     {
 209         if(statusbar->position == Right || statusbar->position == Left)
 210             statusbar->width = area.height;
 211         else
 212             statusbar->width = area.width;
 213     }
 214
 215     switch(statusbar->position)
 216     {
 217       case Right:
 218       case Left:
 219             statusbar->sw =
 220                  simplewindow_new(globalconf.connection, phys_screen, 0, 0,
 221                                   statusbar->height, statusbar->width, 0);
 222             break;
 223       default:
 224             statusbar->sw =
 225                 simplewindow_new(globalconf.connection, phys_screen, 0, 0,
 226                                  statusbar->width, statusbar->height, 0);
 227             break;
 228     }
 229
 230     widget_calculate_alignments(statusbar->widgets);
 231
 232     statusbar_position_update(statusbar);
 233
 234     switch(statusbar->position)
 235     {
 236       case Off:
 237         return;
 238       case Right:
 239       case Left:
 240         s = xcb_aux_get_screen(globalconf.connection, phys_screen);
 241
 242         /* we need a new pixmap this way [     ] to render */
 243         dw = xcb_generate_id(globalconf.connection);
 244         xcb_create_pixmap(globalconf.connection,
 245                           s->root_depth, dw,
 246                           xutil_root_window(globalconf.connection, phys_screen),
 247                           statusbar->width, statusbar->height);
 248         statusbar->ctx = draw_context_new(globalconf.connection,
 249                                           phys_screen,
 250                                           statusbar->width,
 251                                           statusbar->height,
 252                                           dw);
 253         break;
 254       default:
 255         statusbar->ctx = draw_context_new(globalconf.connection,
 256                                           phys_screen,
 257                                           statusbar->width,
 258                                           statusbar->height,
 259                                           statusbar->sw->drawable);
 260         break;
 261     }
 262
 263
 264     statusbar_draw(statusbar);
 265 }
 266
 267 void
 268 statusbar_refresh()
 269 {
 270     int screen;
 271     Statusbar *statusbar;
 272     Widget *widget;
 273
 274     for(screen = 0; screen < globalconf.screens_info->nscreen; screen++)
 275         for(statusbar = globalconf.screens[screen].statusbar;
 276             statusbar;
 277             statusbar = statusbar->next)
 278             for(widget = statusbar->widgets; widget; widget = widget->next)
 279                 if(widget->cache.needs_update)
 280                 {
 281                     statusbar_draw(statusbar);
 282                     break;
 283                 }
 284 }
 285
 286 Statusbar *
 287 statusbar_getbyname(int screen, const char *name)
 288 {
 289     Statusbar *sb;
 290
 291     for(sb = globalconf.screens[screen].statusbar; sb; sb = sb->next)
 292         if(!a_strcmp(sb->name, name))
 293             return sb;
 294
 295     return NULL;
 296 }
 297
 298 static void
 299 statusbar_toggle(Statusbar *statusbar)
 300 {
 301     if(statusbar->position == Off)
 302         statusbar->position = (statusbar->dposition == Off) ? Top : statusbar->dposition;
 303     else
 304         statusbar->position = Off;
 305
 306     globalconf.screens[statusbar->screen].need_arrange = true;
 307 }
 308
 309 /** Toggle the statusbar on or off.
 310  * Argument must be a statusbar name, or no argument for all statusbars.
 311  * \param screen Screen ID
 312  * \param arg statusbar name
 313  * \ingroup ui_callback
 314  */
 315 void
 316 uicb_statusbar_toggle(int screen, char *arg)
 317 {
 318     Statusbar *sb = statusbar_getbyname(screen, arg);
 319
 320     if(sb)
 321         statusbar_toggle(sb);
 322     else
 323         for(sb = globalconf.screens[screen].statusbar; sb; sb = sb->next)
 324             statusbar_toggle(sb);
 325
 326     for(sb = globalconf.screens[screen].statusbar; sb; sb = sb->next)
 327         statusbar_position_update(sb);
 328 }
 329
 330 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80