statusbar.c

   1 /*
   2  * statusbar.c - statusbar functions
   3  *
   4  * Copyright © 2007 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_update_position(Statusbar *statusbar)
  35 {
  36     Area area;
  37
  38     XMapRaised(globalconf.display, statusbar->sw->window);
  39
  40     /* Top and Bottom Statusbar have prio */
  41     if(statusbar->position == Top || statusbar->position == Bottom)
  42         area = screen_get_area(statusbar->screen,
  43                                NULL,
  44                                &globalconf.screens[statusbar->screen].padding);
  45     else
  46        area = screen_get_area(statusbar->screen,
  47                               globalconf.screens[statusbar->screen].statusbar,
  48                               &globalconf.screens[statusbar->screen].padding);
  49
  50     switch(statusbar->position)
  51     {
  52       case Top:
  53         simplewindow_move(statusbar->sw, area.x, area.y);
  54         break;
  55       case Bottom:
  56         simplewindow_move(statusbar->sw, area.x, (area.y + area.height) - statusbar->sw->geometry.height);
  57         break;
  58       case Left:
  59         simplewindow_move(statusbar->sw, area.x - statusbar->sw->geometry.width,
  60                           (area.y + area.height) - statusbar->sw->geometry.height);
  61         break;
  62       case Right:
  63         simplewindow_move(statusbar->sw, area.x + area.width, area.y);
  64         break;
  65       case Off:
  66         XUnmapWindow(globalconf.display, statusbar->sw->window);
  67         break;
  68     }
  69 }
  70
  71 static void
  72 statusbar_draw(Statusbar *statusbar)
  73 {
  74     int phys_screen = get_phys_screen(statusbar->screen);
  75     Widget *widget, *last_drawn = NULL;
  76     int left = 0, right = 0;
  77     Area rectangle = { 0, 0, 0, 0, NULL };
  78     Drawable d;
  79
  80     /* don't waste our time */
  81     switch(statusbar->position)
  82     {
  83       case Off:
  84         return;
  85         break;
  86       case Right:
  87       case Left:
  88         /* we need a new pixmap this way [     ] to render */
  89         XFreePixmap(globalconf.display, statusbar->sw->drawable);
  90         d = XCreatePixmap(globalconf.display,
  91                           RootWindow(globalconf.display, phys_screen),
  92                           statusbar->width, statusbar->height,
  93                           DefaultDepth(globalconf.display, phys_screen));
  94         statusbar->sw->drawable = d;
  95         break;
  96       default:
  97         break;
  98     }
  99
 100     DrawCtx *ctx = draw_context_new(globalconf.display,
 101                                     phys_screen,
 102                                     statusbar->width,
 103                                     statusbar->height,
 104                                     statusbar->sw->drawable);
 105
 106     rectangle.width = statusbar->width;
 107     rectangle.height = statusbar->height;
 108     draw_rectangle(ctx, rectangle, True,
 109                    globalconf.screens[statusbar->screen].colors_normal[ColBG]);
 110
 111     for(widget = statusbar->widgets; widget; widget = widget->next)
 112         if (widget->alignment == AlignLeft)
 113         {
 114             widget->cache.needs_update = False;
 115             left += widget->draw(widget, ctx, left, (left + right));
 116         }
 117
 118     /* renders right widget from last to first */
 119     for(widget = statusbar->widgets; widget; widget = widget->next)
 120         if (widget->alignment == AlignRight && last_drawn == widget->next)
 121         {
 122             widget->cache.needs_update = False;
 123             right += widget->draw(widget, ctx, right, (left + right));
 124             last_drawn = widget;
 125             widget = statusbar->widgets;
 126         }
 127
 128     for(widget = statusbar->widgets; widget; widget = widget->next)
 129         if (widget->alignment == AlignFlex)
 130         {
 131             widget->cache.needs_update = False;
 132             left += widget->draw(widget, ctx, left, (left + right));
 133         }
 134
 135     switch(statusbar->position)
 136     {
 137         case Right:
 138           d = draw_rotate(ctx, phys_screen, M_PI_2,
 139                           statusbar->height, 0);
 140           XFreePixmap(globalconf.display, statusbar->sw->drawable);
 141           statusbar->sw->drawable = d;
 142           break;
 143         case Left:
 144           d = draw_rotate(ctx, phys_screen, - M_PI_2,
 145                           0, statusbar->width);
 146           XFreePixmap(globalconf.display, statusbar->sw->drawable);
 147           statusbar->sw->drawable = d;
 148           break;
 149         default:
 150           break;
 151     }
 152
 153     draw_context_delete(ctx);
 154
 155     statusbar_display(statusbar);
 156 }
 157
 158 void
 159 statusbar_display(Statusbar *statusbar)
 160 {
 161     /* don't waste our time */
 162     if(statusbar->position != Off)
 163         simplewindow_refresh_drawable(statusbar->sw, get_phys_screen(statusbar->screen));
 164 }
 165
 166 void
 167 statusbar_preinit(Statusbar *statusbar)
 168 {
 169     Widget *widget;
 170
 171     if(statusbar->height <= 0)
 172     {
 173         /* 1.5 as default factor, it fits nice but no one know why */
 174         statusbar->height = globalconf.screens[statusbar->screen].font->height * 1.5;
 175
 176         for(widget = statusbar->widgets; widget; widget = widget->next)
 177             if(widget->font)
 178                 statusbar->height = MAX(statusbar->height, widget->font->height * 1.5);
 179     }
 180 }
 181
 182 void
 183 statusbar_init(Statusbar *statusbar)
 184 {
 185     Statusbar *sb;
 186     int phys_screen = get_phys_screen(statusbar->screen);
 187     Area area = screen_get_area(statusbar->screen,
 188                                 globalconf.screens[statusbar->screen].statusbar,
 189                                 &globalconf.screens[statusbar->screen].padding);
 190
 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->dposition)
 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_update_position(statusbar);
 230
 231     statusbar_draw(statusbar);
 232 }
 233
 234 void
 235 statusbar_refresh()
 236 {
 237     int screen;
 238     Statusbar *statusbar;
 239     Widget *widget;
 240
 241     for(screen = 0; screen < globalconf.nscreen; screen++)
 242         for(statusbar = globalconf.screens[screen].statusbar;
 243             statusbar;
 244             statusbar = statusbar->next)
 245             for(widget = statusbar->widgets; widget; widget = widget->next)
 246                 if(widget->cache.needs_update)
 247                 {
 248                     statusbar_draw(statusbar);
 249                     break;
 250                 }
 251 }
 252
 253 Position
 254 statusbar_get_position_from_str(const char *pos)
 255 {
 256     if(!a_strncmp(pos, "off", 3))
 257         return Off;
 258     else if(!a_strncmp(pos, "bottom", 6))
 259         return Bottom;
 260     else if(!a_strncmp(pos, "right", 5))
 261         return Right;
 262     else if(!a_strncmp(pos, "left", 4))
 263         return Left;
 264     return Top;
 265 }
 266
 267 static Statusbar *
 268 get_statusbar_byname(int screen, const char *name)
 269 {
 270     Statusbar *sb;
 271
 272     for(sb = globalconf.screens[screen].statusbar; sb; sb = sb->next)
 273         if(!a_strcmp(sb->name, name))
 274             return sb;
 275
 276     return NULL;
 277 }
 278
 279 static void
 280 statusbar_toggle(Statusbar *statusbar)
 281 {
 282     if(statusbar->position == Off)
 283         statusbar->position = (statusbar->dposition == Off) ? Top : statusbar->dposition;
 284     else
 285         statusbar->position = Off;
 286
 287     statusbar_update_position(statusbar);
 288     globalconf.screens[statusbar->screen].need_arrange = True;
 289 }
 290
 291 /** Toggle statusbar
 292  * \param screen Screen ID
 293  * \param arg statusbar name
 294  * \ingroup ui_callback
 295  */
 296 void
 297 uicb_statusbar_toggle(int screen, char *arg)
 298 {
 299     Statusbar *sb = get_statusbar_byname(screen, arg);
 300
 301     if(sb)
 302         statusbar_toggle(sb);
 303     else
 304         for(sb = globalconf.screens[screen].statusbar; sb; sb = sb->next)
 305             statusbar_toggle(sb);
 306 }
 307
 308 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80