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 "util.h"
  28 #include "tag.h"
  29 #include "widget.h"
  30
  31 extern AwesomeConf globalconf;
  32
  33 static void
  34 statusbar_update_position(Statusbar *statusbar)
  35 {
  36     Area area = get_screen_area(statusbar->screen,
  37                                 NULL,
  38                                 &globalconf.screens[statusbar->screen].padding);
  39
  40     XMapRaised(globalconf.display, statusbar->window);
  41     switch(statusbar->position)
  42     {
  43       default:
  44         XMoveWindow(globalconf.display, statusbar->window,
  45                     area.x, area.y);
  46         break;
  47       case Left:
  48         XMoveWindow(globalconf.display, statusbar->window,
  49                     area.x, (area.y + area.height) - statusbar->width);
  50         break;
  51       case Right:
  52         XMoveWindow(globalconf.display, statusbar->window,
  53                     area.x + (area.width - statusbar->height), area.y);
  54         break;
  55       case Bottom:
  56         XMoveWindow(globalconf.display, statusbar->window,
  57                     area.x, area.height - statusbar->height);
  58         break;
  59       case Off:
  60         XUnmapWindow(globalconf.display, statusbar->window);
  61         break;
  62     }
  63     XSync(globalconf.display, False);
  64 }
  65
  66 void
  67 statusbar_draw(Statusbar *statusbar)
  68 {
  69     int phys_screen = get_phys_screen(statusbar->screen);
  70     Widget *widget, *last_drawn = NULL;
  71     int left = 0, right = 0;
  72
  73     /* don't waste our time */
  74     if(statusbar->position == Off)
  75         return;
  76
  77     XFreePixmap(globalconf.display, statusbar->drawable);
  78
  79     DrawCtx *ctx = draw_get_context(phys_screen,
  80                                     statusbar->width,
  81                                     statusbar->height);
  82
  83     draw_rectangle(ctx, 0, 0, statusbar->width, statusbar->height, True,
  84                    globalconf.screens[statusbar->screen].colors_normal[ColBG]);
  85
  86     for(widget = statusbar->widgets; widget; widget = widget->next)
  87         if (widget->alignment == AlignLeft)
  88         {
  89             widget->cache.needs_update = False;
  90             left += widget->draw(widget, ctx, left, (left + right));
  91         }
  92
  93     /* renders right widget from last to first */
  94     for(widget = statusbar->widgets; widget; widget = widget->next)
  95         if (widget->alignment == AlignRight && last_drawn == widget->next)
  96         {
  97             widget->cache.needs_update = False;
  98             right += widget->draw(widget, ctx, right, (left + right));
  99             last_drawn = widget;
 100             widget = statusbar->widgets;
 101         }
 102
 103     for(widget = statusbar->widgets; widget; widget = widget->next)
 104         if (widget->alignment == AlignFlex)
 105         {
 106             widget->cache.needs_update = False;
 107             left += widget->draw(widget, ctx, left, (left + right));
 108         }
 109
 110     if(statusbar->position == Right
 111        || statusbar->position == Left)
 112     {
 113         if(statusbar->position == Right)
 114             statusbar->drawable = draw_rotate(ctx, phys_screen, M_PI_2, statusbar->height, 0);
 115         else
 116             statusbar->drawable = draw_rotate(ctx, phys_screen, - M_PI_2, 0, statusbar->width);
 117
 118         draw_free_context(ctx);
 119     }
 120     else
 121     {
 122         statusbar->drawable = ctx->drawable;
 123         /* just delete the struct, don't delete the drawable */
 124         p_delete(&ctx);
 125     }
 126
 127     statusbar_display(statusbar);
 128 }
 129
 130 void
 131 statusbar_display(Statusbar *statusbar)
 132 {
 133     int phys_screen = get_phys_screen(statusbar->screen);
 134
 135     /* don't waste our time */
 136     if(statusbar->position == Off)
 137         return;
 138
 139     if(statusbar->position == Right
 140        || statusbar->position == Left)
 141         XCopyArea(globalconf.display, statusbar->drawable,
 142                   statusbar->window,
 143                   DefaultGC(globalconf.display, phys_screen), 0, 0,
 144                   statusbar->height,
 145                   statusbar->width, 0, 0);
 146     else
 147         XCopyArea(globalconf.display, statusbar->drawable,
 148                   statusbar->window,
 149                   DefaultGC(globalconf.display, phys_screen), 0, 0,
 150                   statusbar->width, statusbar->height, 0, 0);
 151 }
 152
 153 void
 154 statusbar_init(Statusbar *statusbar, int screen)
 155 {
 156     Widget *widget;
 157     XSetWindowAttributes wa;
 158     int phys_screen = get_phys_screen(screen);
 159     Area area = get_screen_area(statusbar->screen,
 160                                 NULL,
 161                                 &globalconf.screens[screen].padding);
 162
 163     if(statusbar->height <= 0)
 164     {
 165         /* 1.5 as default factor, it fits nice but no one know why */
 166         statusbar->height = globalconf.screens[screen].font->height * 1.5;
 167
 168         for(widget = statusbar->widgets; widget; widget = widget->next)
 169             if(widget->font)
 170                 statusbar->height = MAX(statusbar->height, widget->font->height * 1.5);
 171     }
 172
 173     if(statusbar->width <= 0)
 174     {
 175         if(statusbar->position == Right || statusbar->position == Left)
 176             statusbar->width = area.height;
 177         else
 178             statusbar->width = area.width;
 179     }
 180
 181     statusbar->screen = screen;
 182
 183     wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
 184         | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
 185     wa.cursor = globalconf.cursor[CurNormal];
 186     wa.override_redirect = 1;
 187     wa.background_pixmap = ParentRelative;
 188     wa.event_mask = ButtonPressMask | ExposureMask;
 189     if(statusbar->dposition == Right || statusbar->dposition == Left)
 190         statusbar->window = XCreateWindow(globalconf.display,
 191                                           RootWindow(globalconf.display,
 192                                           phys_screen),
 193                                           0, 0,
 194                                           statusbar->height,
 195                                           statusbar->width,
 196                                           0,
 197                                           DefaultDepth(globalconf.display,
 198                                                        phys_screen),
 199                                           CopyFromParent,
 200                                           DefaultVisual(globalconf.display,
 201                                                         phys_screen),
 202                                           CWOverrideRedirect |
 203                                           CWBackPixmap |
 204                                           CWEventMask,
 205                                           &wa);
 206     else
 207         statusbar->window = XCreateWindow(globalconf.display,
 208                                           RootWindow(globalconf.display,
 209                                                      phys_screen),
 210                                           0, 0,
 211                                           statusbar->width,
 212                                           statusbar->height,
 213                                           0,
 214                                           DefaultDepth(globalconf.display,
 215                                                        phys_screen),
 216                                           CopyFromParent,
 217                                           DefaultVisual(globalconf.display,
 218                                                         phys_screen),
 219                                           CWOverrideRedirect |
 220                                           CWBackPixmap |
 221                                           CWEventMask,
 222                                           &wa);
 223
 224     statusbar->drawable = XCreatePixmap(globalconf.display,
 225                                         RootWindow(globalconf.display, phys_screen),
 226                                         statusbar->width, statusbar->height,
 227                                         DefaultDepth(globalconf.display, phys_screen));
 228
 229
 230     XDefineCursor(globalconf.display,
 231                   statusbar->window,
 232                   globalconf.cursor[CurNormal]);
 233
 234     widget_calculate_alignments(statusbar->widgets);
 235
 236     statusbar_update_position(statusbar);
 237     XMapRaised(globalconf.display, statusbar->window);
 238
 239     statusbar_draw(statusbar);
 240 }
 241
 242 void
 243 statusbar_refresh()
 244 {
 245     int screen;
 246     Statusbar *statusbar;
 247     Widget *widget;
 248
 249     for(screen = 0; screen < get_screen_count(); screen++)
 250         for(statusbar = globalconf.screens[screen].statusbar;
 251             statusbar;
 252             statusbar = statusbar->next)
 253             for(widget = statusbar->widgets; widget; widget = widget->next)
 254                 if(widget->cache.needs_update)
 255                 {
 256                     statusbar_draw(statusbar);
 257                     break;
 258                 }
 259 }
 260
 261 Position
 262 statusbar_get_position_from_str(const char *pos)
 263 {
 264     if(!a_strncmp(pos, "off", 3))
 265         return Off;
 266     else if(!a_strncmp(pos, "bottom", 6))
 267         return Bottom;
 268     else if(!a_strncmp(pos, "right", 5))
 269         return Right;
 270     else if(!a_strncmp(pos, "left", 4))
 271         return Left;
 272     return Top;
 273 }
 274
 275 static Statusbar *
 276 get_statusbar_byname(int screen, const char *name)
 277 {
 278     Statusbar *sb;
 279
 280     for(sb = globalconf.screens[screen].statusbar; sb; sb = sb->next)
 281         if(!a_strcmp(sb->name, name))
 282             return sb;
 283
 284     return NULL;
 285 }
 286
 287 static void
 288 statusbar_toggle(Statusbar *statusbar)
 289 {
 290     if(statusbar->position == Off)
 291         statusbar->position = (statusbar->dposition == Off) ? Top : statusbar->dposition;
 292     else
 293         statusbar->position = Off;
 294
 295     statusbar_update_position(statusbar);
 296 }
 297
 298 /** Toggle statusbar
 299  * \param screen Screen ID
 300  * \param arg statusbar name
 301  * \ingroup ui_callback
 302  */
 303 void
 304 uicb_statusbar_toggle(int screen, char *arg)
 305 {
 306     Statusbar *sb = get_statusbar_byname(screen, arg);
 307
 308     if(sb)
 309         statusbar_toggle(sb);
 310     else
 311         for(sb = globalconf.screens[screen].statusbar; sb; sb = sb->next)
 312             statusbar_toggle(sb);
 313
 314     arrange(screen);
 315 }
 316
 317 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80