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