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