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