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