Dogcows Code - chaz/openbox/blob - openbox/focus_cycle_popup.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    focus_cycle_popup.c for the Openbox window manager
   4    Copyright (c) 2006        Mikael Magnusson
   5    Copyright (c) 2003-2007   Dana Jansens
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    See the COPYING file for a copy of the GNU General Public License.
  18 */
  19
  20 #include "focus_cycle_popup.h"
  21 #include "popup.h"
  22 #include "client.h"
  23 #include "screen.h"
  24 #include "focus.h"
  25 #include "focus_cycle.h"
  26 #include "openbox.h"
  27 #include "window.h"
  28 #include "render/render.h"
  29
  30 #include <X11/Xlib.h>
  31 #include <glib.h>
  32
  33 #define ICON_SIZE 48
  34 #define ICON_HILITE_WIDTH 2
  35 #define ICON_HILITE_MARGIN 1
  36 #define OUTSIDE_BORDER 3
  37
  38 typedef struct _ObFocusCyclePopup       ObFocusCyclePopup;
  39 typedef struct _ObFocusCyclePopupTarget ObFocusCyclePopupTarget;
  40
  41 struct _ObFocusCyclePopupTarget
  42 {
  43     ObClient *client;
  44     gchar *text;
  45     Window win;
  46 };
  47
  48 struct _ObFocusCyclePopup
  49 {
  50     ObWindow obwin;
  51     Window bg;
  52
  53     Window text;
  54
  55     GList *targets;
  56     gint n_targets;
  57
  58     const ObFocusCyclePopupTarget *last_target;
  59
  60     gint maxtextw;
  61
  62     RrAppearance *a_bg;
  63     RrAppearance *a_text;
  64     RrAppearance *a_icon;
  65
  66     RrPixel32 *hilite_rgba;
  67
  68     gboolean mapped;
  69 };
  70
  71 static ObFocusCyclePopup popup;
  72
  73 static gchar *popup_get_name (ObClient *c);
  74 static void   popup_setup    (ObFocusCyclePopup *p,
  75                               gboolean iconic_windows,
  76                               gboolean all_desktops,
  77                               gboolean dock_windows,
  78                               gboolean desktop_windows);
  79 static void   popup_render   (ObFocusCyclePopup *p,
  80                               const ObClient *c);
  81
  82 static Window create_window(Window parent, guint bwidth, gulong mask,
  83                             XSetWindowAttributes *attr)
  84 {
  85     return XCreateWindow(ob_display, parent, 0, 0, 1, 1, bwidth,
  86                          RrDepth(ob_rr_inst), InputOutput,
  87                          RrVisual(ob_rr_inst), mask, attr);
  88 }
  89
  90 void focus_cycle_popup_startup(gboolean reconfig)
  91 {
  92     XSetWindowAttributes attrib;
  93
  94     popup.obwin.type = Window_Internal;
  95     popup.a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
  96     popup.a_text = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
  97     popup.a_icon = RrAppearanceCopy(ob_rr_theme->a_clear_tex);
  98
  99     popup.a_text->surface.parent = popup.a_bg;
 100     popup.a_icon->surface.parent = popup.a_bg;
 101
 102     popup.a_icon->texture[0].type = RR_TEXTURE_RGBA;
 103
 104     RrAppearanceAddTextures(popup.a_bg, 1);
 105     popup.a_bg->texture[0].type = RR_TEXTURE_RGBA;
 106
 107     attrib.override_redirect = True;
 108     attrib.border_pixel=RrColorPixel(ob_rr_theme->frame_focused_border_color);
 109     popup.bg = create_window(RootWindow(ob_display, ob_screen),
 110                              ob_rr_theme->fbwidth,
 111                              CWOverrideRedirect | CWBorderPixel, &attrib);
 112
 113     popup.text = create_window(popup.bg, 0, 0, NULL);
 114
 115     popup.targets = NULL;
 116     popup.n_targets = 0;
 117     popup.last_target = NULL;
 118
 119     popup.hilite_rgba = NULL;
 120
 121     XMapWindow(ob_display, popup.text);
 122
 123     stacking_add(INTERNAL_AS_WINDOW(&popup));
 124 }
 125
 126 void focus_cycle_popup_shutdown(gboolean reconfig)
 127 {
 128     stacking_remove(INTERNAL_AS_WINDOW(&popup));
 129
 130     while(popup.targets) {
 131         ObFocusCyclePopupTarget *t = popup.targets->data;
 132
 133         g_free(t->text);
 134         XDestroyWindow(ob_display, t->win);
 135
 136         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 137     }
 138
 139     g_free(popup.hilite_rgba);
 140
 141     XDestroyWindow(ob_display, popup.text);
 142     XDestroyWindow(ob_display, popup.bg);
 143
 144     RrAppearanceFree(popup.a_icon);
 145     RrAppearanceFree(popup.a_text);
 146     RrAppearanceFree(popup.a_bg);
 147 }
 148
 149 static void popup_setup(ObFocusCyclePopup *p,
 150                         gboolean iconic_windows, gboolean all_desktops,
 151                         gboolean dock_windows, gboolean desktop_windows)
 152 {
 153     gint maxwidth, n;
 154     GList *it;
 155
 156     g_assert(p->targets == NULL);
 157     g_assert(p->n_targets == 0);
 158
 159     /* make its width to be the width of all the possible titles */
 160
 161     /* build a list of all the valid focus targets and measure their strings,
 162        and count them */
 163     maxwidth = 0;
 164     n = 0;
 165     for (it = g_list_last(focus_order); it; it = g_list_previous(it)) {
 166         ObClient *ft = it->data;
 167
 168         if (focus_cycle_target_valid(ft,
 169                                      iconic_windows,
 170                                      all_desktops,
 171                                      dock_windows,
 172                                      desktop_windows))
 173         {
 174             ObFocusCyclePopupTarget *t = g_new(ObFocusCyclePopupTarget, 1);
 175
 176             t->client = ft;
 177             t->text = popup_get_name(ft);
 178             t->win = create_window(p->bg, 0, 0, NULL);
 179
 180             XMapWindow(ob_display, t->win);
 181
 182             /* measure */
 183             p->a_text->texture[0].data.text.string = t->text;
 184             maxwidth = MAX(maxwidth, RrMinWidth(p->a_text));
 185
 186             p->targets = g_list_prepend(p->targets, t);
 187             ++n;
 188         }
 189     }
 190
 191     p->n_targets = n;
 192     p->maxtextw = maxwidth;
 193 }
 194
 195 static gchar *popup_get_name(ObClient *c)
 196 {
 197     ObClient *p;
 198     gchar *title = NULL;
 199     const gchar *desk = NULL;
 200     gchar *ret;
 201
 202     /* find our highest direct parent, including non-normal windows */
 203     for (p = c; p->transient_for && p->transient_for != OB_TRAN_GROUP;
 204          p = p->transient_for);
 205
 206     if (c->desktop != DESKTOP_ALL && c->desktop != screen_desktop)
 207         desk = screen_desktop_names[c->desktop];
 208
 209     /* use the transient's parent's title/icon if we don't have one */
 210     if (p != c && !strcmp("", (c->iconic ? c->icon_title : c->title)))
 211         title = g_strdup(p->iconic ? p->icon_title : p->title);
 212
 213     if (title == NULL)
 214         title = g_strdup(c->iconic ? c->icon_title : c->title);
 215
 216     if (desk)
 217         ret = g_strdup_printf("%s [%s]", title, desk);
 218     else {
 219         ret = title;
 220         title = NULL;
 221     }
 222     g_free(title);
 223
 224     return ret;
 225 }
 226
 227 static void popup_render(ObFocusCyclePopup *p, const ObClient *c)
 228 {
 229     gint ml, mt, mr, mb;
 230     gint l, t, r, b;
 231     gint x, y, w, h;
 232     Rect *screen_area;
 233     gint icons_per_row;
 234     gint icon_rows;
 235     gint textx, texty, textw, texth;
 236     gint rgbax, rgbay, rgbaw, rgbah;
 237     gint icons_center_x;
 238     gint innerw, innerh;
 239     gint i;
 240     GList *it;
 241     const ObFocusCyclePopupTarget *newtarget;
 242     gint newtargetx, newtargety;
 243
 244     /* XXX find the middle monitor? */
 245     screen_area = screen_physical_area_monitor(0);
 246
 247     /* get the outside margins */
 248     RrMargins(p->a_bg, &ml, &mt, &mr, &mb);
 249
 250     /* get our outside borders */
 251     l = ml + OUTSIDE_BORDER;
 252     r = mr + OUTSIDE_BORDER;
 253     t = mt + OUTSIDE_BORDER;
 254     b = mb + OUTSIDE_BORDER;
 255
 256     /* get the icon pictures' sizes */
 257     innerw = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 258     innerh = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 259
 260     /* get the width from the text and keep it within limits */
 261     w = l + r + p->maxtextw;
 262     w = MIN(w, MAX(screen_area->width/3, POPUP_WIDTH)); /* max width */
 263     w = MAX(w, POPUP_WIDTH); /* min width */
 264
 265     /* how many icons will fit in that row? make the width fit that */
 266     w -= l + r;
 267     icons_per_row = (w + ICON_SIZE - 1) / ICON_SIZE;
 268     w = icons_per_row * ICON_SIZE + l + r;
 269
 270     /* how many rows do we need? */
 271     icon_rows = (p->n_targets-1) / icons_per_row + 1;
 272
 273     /* get the text dimensions */
 274     textw = w - l - r;
 275     texth = RrMinHeight(p->a_text);
 276
 277     /* find the height of the dialog */
 278     h = t + b + (icon_rows * ICON_SIZE) + (OUTSIDE_BORDER + texth);
 279
 280     /* get the position of the text */
 281     textx = l;
 282     texty = h - texth - b;
 283
 284     /* find the position for the popup (include the outer borders) */
 285     x = screen_area->x + (screen_area->width -
 286                           (w + ob_rr_theme->fbwidth * 2)) / 2;
 287     y = screen_area->y + (screen_area->height -
 288                           (h + ob_rr_theme->fbwidth * 2)) / 2;
 289
 290     /* get the dimensions of the target hilite texture */
 291     rgbax = ml;
 292     rgbay = mt;
 293     rgbaw = w - ml - mr;
 294     rgbah = h - mt - mb;
 295
 296     /* center the icons if there is less than one row */
 297     if (icon_rows == 1)
 298         icons_center_x = (w - p->n_targets * ICON_SIZE) / 2;
 299     else
 300         icons_center_x;
 301
 302     if (!p->mapped) {
 303         /* position the background but don't draw it*/
 304         XMoveResizeWindow(ob_display, p->bg, x, y, w, h);
 305
 306         /* set up the hilite texture for the background */
 307         p->a_bg->texture[0].data.rgba.width = rgbaw;
 308         p->a_bg->texture[0].data.rgba.height = rgbah;
 309         p->hilite_rgba = g_new(RrPixel32, rgbaw * rgbah);
 310         p->a_bg->texture[0].data.rgba.data = p->hilite_rgba;
 311
 312         /* position the text, but don't draw it */
 313         XMoveResizeWindow(ob_display, p->text, textx, texty, textw, texth);
 314         p->a_text->surface.parentx = textx;
 315         p->a_text->surface.parenty = texty;
 316     }
 317
 318     /* find the focused target */
 319     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 320         const ObFocusCyclePopupTarget *target = it->data;
 321         const gint row = i / icons_per_row; /* starting from 0 */
 322         const gint col = i % icons_per_row; /* starting from 0 */
 323
 324         if (target->client == c) {
 325             /* save the target */
 326             newtarget = target;
 327             newtargetx = icons_center_x + l + (col * ICON_SIZE);
 328             newtargety = t + (row * ICON_SIZE);
 329
 330             if (!p->mapped)
 331                 break; /* if we're not dimensioning, then we're done */
 332         }
 333     }
 334
 335     g_assert(newtarget != NULL);
 336
 337     /* create the hilite under the target icon */
 338     {
 339         RrPixel32 color;
 340         gint i, j, o;
 341
 342         color = ((ob_rr_theme->osd_color->r & 0xff) << RrDefaultRedOffset) +
 343             ((ob_rr_theme->osd_color->g & 0xff) << RrDefaultGreenOffset) +
 344             ((ob_rr_theme->osd_color->b & 0xff) << RrDefaultBlueOffset);
 345
 346         o = 0;
 347         for (i = 0; i < rgbah; ++i)
 348             for (j = 0; j < rgbaw; ++j) {
 349                 guchar a;
 350                 const gint x = j + rgbax - newtargetx;
 351                 const gint y = i + rgbay - newtargety;
 352
 353                 if (x < 0 || x >= ICON_SIZE ||
 354                     y < 0 || y >= ICON_SIZE)
 355                 {
 356                     /* outside the target */
 357                     a = 0x00;
 358                 }
 359                 else if (x < ICON_HILITE_WIDTH ||
 360                          x >= ICON_SIZE - ICON_HILITE_WIDTH ||
 361                          y < ICON_HILITE_WIDTH ||
 362                          y >= ICON_SIZE - ICON_HILITE_WIDTH)
 363                 {
 364                     /* the border of the target */
 365                     a = 0x88;
 366                 }
 367                 else {
 368                     /* the background of the target */
 369                     a = 0x22;
 370                 }
 371
 372                 p->hilite_rgba[o++] =
 373                     color + (a << RrDefaultAlphaOffset);
 374             }
 375     }
 376
 377     /* * * draw everything * * */
 378
 379     /* draw the background */
 380     RrPaint(p->a_bg, p->bg, w, h);
 381
 382     /* draw the icons */
 383     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 384         const ObFocusCyclePopupTarget *target = it->data;
 385
 386         /* have to redraw the targetted icon and last targetted icon,
 387            they can pick up the hilite changes in the backgroud */
 388         if (!p->mapped || newtarget == target || p->last_target == target) {
 389             const ObClientIcon *icon;
 390             const gint row = i / icons_per_row; /* starting from 0 */
 391             const gint col = i % icons_per_row; /* starting from 0 */
 392             gint innerx, innery;
 393
 394             /* find the dimensions of the icon inside it */
 395             innerx = icons_center_x + l + (col * ICON_SIZE);
 396             innerx += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 397             innery = t + (row * ICON_SIZE);
 398             innery += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 399
 400             /* move the icon */
 401             XMoveResizeWindow(ob_display, target->win,
 402                               innerx, innery, innerw, innerh);
 403
 404             /* get the icon from the client */
 405             icon = client_icon(target->client, innerw, innerh);
 406             p->a_icon->texture[0].data.rgba.width = icon->width;
 407             p->a_icon->texture[0].data.rgba.height = icon->height;
 408             p->a_icon->texture[0].data.rgba.data = icon->data;
 409
 410             /* draw the icon */
 411             p->a_icon->surface.parentx = innerx;
 412             p->a_icon->surface.parenty = innery;
 413             RrPaint(p->a_icon, target->win, innerw, innerh);
 414         }
 415     }
 416
 417     /* draw the text */
 418     p->a_text->texture[0].data.text.string = newtarget->text;
 419     p->a_text->surface.parentx = textx;
 420     p->a_text->surface.parenty = texty;
 421     RrPaint(p->a_text, p->text, textw, texth);
 422
 423     p->last_target = newtarget;
 424 }
 425
 426 void focus_cycle_popup_show(ObClient *c, gboolean iconic_windows,
 427                             gboolean all_desktops, gboolean dock_windows,
 428                             gboolean desktop_windows)
 429 {
 430     g_assert(c != NULL);
 431
 432     /* do this stuff only when the dialog is first showing */
 433     if (!popup.mapped)
 434         popup_setup(&popup, iconic_windows, all_desktops,
 435                     dock_windows, desktop_windows);
 436     g_assert(popup.targets != NULL);
 437
 438     popup_render(&popup, c);
 439
 440     if (!popup.mapped) {
 441         /* show the dialog */
 442         XMapWindow(ob_display, popup.bg);
 443         XFlush(ob_display);
 444         popup.mapped = TRUE;
 445     }
 446 }
 447
 448 void focus_cycle_popup_hide()
 449 {
 450     XUnmapWindow(ob_display, popup.bg);
 451     XFlush(ob_display);
 452
 453     popup.mapped = FALSE;
 454
 455     while(popup.targets) {
 456         ObFocusCyclePopupTarget *t = popup.targets->data;
 457
 458         g_free(t->text);
 459         XDestroyWindow(ob_display, t->win);
 460
 461         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 462     }
 463     popup.n_targets = 0;
 464     popup.last_target = NULL;
 465
 466     g_free(popup.hilite_rgba);
 467     popup.hilite_rgba = NULL;
 468 }
 469