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