Very inconsequential changes.
[mikachu/openbox.git] / 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 "openbox.h"
26 #include "window.h"
27 #include "event.h"
28 #include "render/render.h"
29
30 #include <X11/Xlib.h>
31 #include <glib.h>
32
33 #define ICON_SIZE 40
34 #define ICON_HILITE_WIDTH 2
35 #define ICON_HILITE_MARGIN 1
36 #define OUTSIDE_BORDER 3
37 #define TEXT_BORDER 2
38
39 typedef struct _ObFocusCyclePopup       ObFocusCyclePopup;
40 typedef struct _ObFocusCyclePopupTarget ObFocusCyclePopupTarget;
41
42 struct _ObFocusCyclePopupTarget
43 {
44     ObClient *client;
45     RrImage *icon;
46     gchar *text;
47     Window win;
48 };
49
50 struct _ObFocusCyclePopup
51 {
52     ObWindow obwin;
53     Window bg;
54
55     Window text;
56
57     GList *targets;
58     gint n_targets;
59
60     const ObFocusCyclePopupTarget *last_target;
61
62     gint maxtextw;
63
64     RrAppearance *a_bg;
65     RrAppearance *a_text;
66     RrAppearance *a_icon;
67
68     RrPixel32 *hilite_rgba;
69
70     gboolean mapped;
71 };
72
73 /*! This popup shows all possible windows */
74 static ObFocusCyclePopup popup;
75 /*! This popup shows a single window */
76 static ObIconPopup *single_popup;
77
78 static gchar *popup_get_name (ObClient *c);
79 static void   popup_setup    (ObFocusCyclePopup *p,
80                               gboolean create_targets,
81                               gboolean iconic_windows,
82                               gboolean all_desktops,
83                               gboolean dock_windows,
84                               gboolean desktop_windows);
85 static void   popup_render   (ObFocusCyclePopup *p,
86                               const ObClient *c);
87
88 static Window create_window(Window parent, guint bwidth, gulong mask,
89                             XSetWindowAttributes *attr)
90 {
91     return XCreateWindow(ob_display, parent, 0, 0, 1, 1, bwidth,
92                          RrDepth(ob_rr_inst), InputOutput,
93                          RrVisual(ob_rr_inst), mask, attr);
94 }
95
96 void focus_cycle_popup_startup(gboolean reconfig)
97 {
98     XSetWindowAttributes attrib;
99
100     single_popup = icon_popup_new();
101
102     popup.obwin.type = Window_Internal;
103     popup.a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
104     popup.a_text = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
105     popup.a_icon = RrAppearanceCopy(ob_rr_theme->a_clear_tex);
106
107     popup.a_text->surface.parent = popup.a_bg;
108     popup.a_icon->surface.parent = popup.a_bg;
109
110     RrAppearanceClearTextures(popup.a_icon);
111     popup.a_icon->texture[0].type = RR_TEXTURE_IMAGE;
112
113     RrAppearanceAddTextures(popup.a_bg, 1);
114     popup.a_bg->texture[0].type = RR_TEXTURE_RGBA;
115
116     attrib.override_redirect = True;
117     attrib.border_pixel=RrColorPixel(ob_rr_theme->osd_border_color);
118     popup.bg = create_window(RootWindow(ob_display, ob_screen),
119                              ob_rr_theme->obwidth,
120                              CWOverrideRedirect | CWBorderPixel, &attrib);
121
122     popup.text = create_window(popup.bg, 0, 0, NULL);
123
124     popup.targets = NULL;
125     popup.n_targets = 0;
126     popup.last_target = NULL;
127
128     popup.hilite_rgba = NULL;
129
130     XMapWindow(ob_display, popup.text);
131
132     stacking_add(INTERNAL_AS_WINDOW(&popup));
133     g_hash_table_insert(window_map, &popup.bg, &popup);
134 }
135
136 void focus_cycle_popup_shutdown(gboolean reconfig)
137 {
138     icon_popup_free(single_popup);
139
140     g_hash_table_remove(window_map, &popup.bg);
141     stacking_remove(INTERNAL_AS_WINDOW(&popup));
142
143     while(popup.targets) {
144         ObFocusCyclePopupTarget *t = popup.targets->data;
145
146         RrImageUnref(t->icon);
147         g_free(t->text);
148         XDestroyWindow(ob_display, t->win);
149         g_free(t);
150
151         popup.targets = g_list_delete_link(popup.targets, popup.targets);
152     }
153
154     g_free(popup.hilite_rgba);
155     popup.hilite_rgba = NULL;
156
157     XDestroyWindow(ob_display, popup.text);
158     XDestroyWindow(ob_display, popup.bg);
159
160     RrAppearanceFree(popup.a_icon);
161     RrAppearanceFree(popup.a_text);
162     RrAppearanceFree(popup.a_bg);
163 }
164
165 static void popup_setup(ObFocusCyclePopup *p, gboolean create_targets,
166                         gboolean iconic_windows, gboolean all_desktops,
167                         gboolean dock_windows, gboolean desktop_windows)
168 {
169     gint maxwidth, n;
170     GList *it;
171
172     g_assert(p->targets == NULL);
173     g_assert(p->n_targets == 0);
174
175     /* make its width to be the width of all the possible titles */
176
177     /* build a list of all the valid focus targets and measure their strings,
178        and count them */
179     maxwidth = 0;
180     n = 0;
181     for (it = g_list_last(focus_order); it; it = g_list_previous(it)) {
182         ObClient *ft = it->data;
183
184         if (focus_valid_target(ft, TRUE,
185                                iconic_windows,
186                                all_desktops,
187                                dock_windows,
188                                desktop_windows))
189         {
190             gchar *text = popup_get_name(ft);
191
192             /* measure */
193             p->a_text->texture[0].data.text.string = text;
194             maxwidth = MAX(maxwidth, RrMinWidth(p->a_text));
195
196             if (!create_targets)
197                 g_free(text);
198             else {
199                 ObFocusCyclePopupTarget *t = g_new(ObFocusCyclePopupTarget, 1);
200
201                 t->client = ft;
202                 t->text = text;
203                 t->icon = client_icon(t->client);
204                 RrImageRef(t->icon); /* own the icon so it won't go away */
205                 t->win = create_window(p->bg, 0, 0, NULL);
206
207                 XMapWindow(ob_display, t->win);
208
209                 p->targets = g_list_prepend(p->targets, t);
210                 ++n;
211             }
212         }
213     }
214
215     p->n_targets = n;
216     p->maxtextw = maxwidth;
217 }
218
219 static gchar *popup_get_name(ObClient *c)
220 {
221     ObClient *p;
222     gchar *title;
223     const gchar *desk = NULL;
224     gchar *ret;
225
226     /* find our highest direct parent */
227     p = client_search_top_direct_parent(c);
228
229     if (c->desktop != DESKTOP_ALL && c->desktop != screen_desktop)
230         desk = screen_desktop_names[c->desktop];
231
232     title = c->iconic ? c->icon_title : c->title;
233
234     /* use the transient's parent's title/icon if we don't have one */
235     if (p != c && title[0] == '\0')
236         title = p->iconic ? p->icon_title : p->title;
237
238     if (desk)
239         ret = g_strdup_printf("%s [%s]", title, desk);
240     else
241         ret = g_strdup(title);
242
243     return ret;
244 }
245
246 static void popup_render(ObFocusCyclePopup *p, const ObClient *c)
247 {
248     gint ml, mt, mr, mb;
249     gint l, t, r, b;
250     gint x, y, w, h;
251     Rect *screen_area = NULL;
252     gint icons_per_row;
253     gint icon_rows;
254     gint textx, texty, textw, texth;
255     gint rgbax, rgbay, rgbaw, rgbah;
256     gint icons_center_x;
257     gint innerw, innerh;
258     gint i;
259     GList *it;
260     const ObFocusCyclePopupTarget *newtarget;
261     gint newtargetx, newtargety;
262
263     screen_area = screen_physical_area_active();
264
265     /* get the outside margins */
266     RrMargins(p->a_bg, &ml, &mt, &mr, &mb);
267
268     /* get our outside borders */
269     l = ml + OUTSIDE_BORDER;
270     r = mr + OUTSIDE_BORDER;
271     t = mt + OUTSIDE_BORDER;
272     b = mb + OUTSIDE_BORDER;
273
274     /* get the icon pictures' sizes */
275     innerw = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
276     innerh = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
277
278     /* get the width from the text and keep it within limits */
279     w = l + r + p->maxtextw;
280     w = MIN(w, MAX(screen_area->width/3, POPUP_WIDTH)); /* max width */
281     w = MAX(w, POPUP_WIDTH); /* min width */
282
283     /* how many icons will fit in that row? make the width fit that */
284     w -= l + r;
285     icons_per_row = (w + ICON_SIZE - 1) / ICON_SIZE;
286     w = icons_per_row * ICON_SIZE + l + r;
287
288     /* how many rows do we need? */
289     icon_rows = (p->n_targets-1) / icons_per_row + 1;
290
291     /* get the text dimensions */
292     textw = w - l - r;
293     texth = RrMinHeight(p->a_text) + TEXT_BORDER * 2;
294
295     /* find the height of the dialog */
296     h = t + b + (icon_rows * ICON_SIZE) + (OUTSIDE_BORDER + texth);
297
298     /* get the position of the text */
299     textx = l;
300     texty = h - texth - b;
301
302     /* find the position for the popup (include the outer borders) */
303     x = screen_area->x + (screen_area->width -
304                           (w + ob_rr_theme->obwidth * 2)) / 2;
305     y = screen_area->y + (screen_area->height -
306                           (h + ob_rr_theme->obwidth * 2)) / 2;
307
308     /* get the dimensions of the target hilite texture */
309     rgbax = ml;
310     rgbay = mt;
311     rgbaw = w - ml - mr;
312     rgbah = h - mt - mb;
313
314     /* center the icons if there is less than one row */
315     if (icon_rows == 1)
316         icons_center_x = (w - p->n_targets * ICON_SIZE) / 2;
317     else
318         icons_center_x = 0;
319
320     if (!p->mapped) {
321         /* position the background but don't draw it*/
322         XMoveResizeWindow(ob_display, p->bg, x, y, w, h);
323
324         /* set up the hilite texture for the background */
325         p->a_bg->texture[0].data.rgba.width = rgbaw;
326         p->a_bg->texture[0].data.rgba.height = rgbah;
327         p->a_bg->texture[0].data.rgba.alpha = 0xff;
328         p->hilite_rgba = g_new(RrPixel32, rgbaw * rgbah);
329         p->a_bg->texture[0].data.rgba.data = p->hilite_rgba;
330
331         /* position the text, but don't draw it */
332         XMoveResizeWindow(ob_display, p->text, textx, texty, textw, texth);
333         p->a_text->surface.parentx = textx;
334         p->a_text->surface.parenty = texty;
335     }
336
337     /* find the focused target */
338     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
339         const ObFocusCyclePopupTarget *target = it->data;
340         const gint row = i / icons_per_row; /* starting from 0 */
341         const gint col = i % icons_per_row; /* starting from 0 */
342
343         if (target->client == c) {
344             /* save the target */
345             newtarget = target;
346             newtargetx = icons_center_x + l + (col * ICON_SIZE);
347             newtargety = t + (row * ICON_SIZE);
348
349             if (!p->mapped)
350                 break; /* if we're not dimensioning, then we're done */
351         }
352     }
353
354     g_assert(newtarget != NULL);
355
356     /* create the hilite under the target icon */
357     {
358         RrPixel32 color;
359         gint i, j, o;
360
361         color = ((ob_rr_theme->osd_color->r & 0xff) << RrDefaultRedOffset) +
362             ((ob_rr_theme->osd_color->g & 0xff) << RrDefaultGreenOffset) +
363             ((ob_rr_theme->osd_color->b & 0xff) << RrDefaultBlueOffset);
364
365         o = 0;
366         for (i = 0; i < rgbah; ++i)
367             for (j = 0; j < rgbaw; ++j) {
368                 guchar a;
369                 const gint x = j + rgbax - newtargetx;
370                 const gint y = i + rgbay - newtargety;
371
372                 if (x < 0 || x >= ICON_SIZE ||
373                     y < 0 || y >= ICON_SIZE)
374                 {
375                     /* outside the target */
376                     a = 0x00;
377                 }
378                 else if (x < ICON_HILITE_WIDTH ||
379                          x >= ICON_SIZE - ICON_HILITE_WIDTH ||
380                          y < ICON_HILITE_WIDTH ||
381                          y >= ICON_SIZE - ICON_HILITE_WIDTH)
382                 {
383                     /* the border of the target */
384                     a = 0x88;
385                 }
386                 else {
387                     /* the background of the target */
388                     a = 0x22;
389                 }
390
391                 p->hilite_rgba[o++] =
392                     color + (a << RrDefaultAlphaOffset);
393             }
394     }
395
396     /* * * draw everything * * */
397
398     /* draw the background */
399     RrPaint(p->a_bg, p->bg, w, h);
400
401     /* draw the icons */
402     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
403         const ObFocusCyclePopupTarget *target = it->data;
404
405         /* have to redraw the targetted icon and last targetted icon,
406            they can pick up the hilite changes in the backgroud */
407         if (!p->mapped || newtarget == target || p->last_target == target) {
408             const gint row = i / icons_per_row; /* starting from 0 */
409             const gint col = i % icons_per_row; /* starting from 0 */
410             gint innerx, innery;
411
412             /* find the dimensions of the icon inside it */
413             innerx = icons_center_x + l + (col * ICON_SIZE);
414             innerx += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
415             innery = t + (row * ICON_SIZE);
416             innery += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
417
418             /* move the icon */
419             XMoveResizeWindow(ob_display, target->win,
420                               innerx, innery, innerw, innerh);
421
422             /* get the icon from the client */
423             p->a_icon->texture[0].data.image.alpha =
424                 target->client->iconic ? OB_ICONIC_ALPHA : 0xff;
425             p->a_icon->texture[0].data.image.image = target->icon;
426
427             /* draw the icon */
428             p->a_icon->surface.parentx = innerx;
429             p->a_icon->surface.parenty = innery;
430             RrPaint(p->a_icon, target->win, innerw, innerh);
431         }
432     }
433
434     /* draw the text */
435     p->a_text->texture[0].data.text.string = newtarget->text;
436     p->a_text->surface.parentx = textx;
437     p->a_text->surface.parenty = texty;
438     RrPaint(p->a_text, p->text, textw, texth);
439
440     p->last_target = newtarget;
441
442     g_free(screen_area);
443 }
444
445 void focus_cycle_popup_show(ObClient *c, gboolean iconic_windows,
446                             gboolean all_desktops, gboolean dock_windows,
447                             gboolean desktop_windows)
448 {
449     g_assert(c != NULL);
450
451     /* do this stuff only when the dialog is first showing */
452     if (!popup.mapped)
453         popup_setup(&popup, TRUE, iconic_windows, all_desktops,
454                     dock_windows, desktop_windows);
455     g_assert(popup.targets != NULL);
456
457     popup_render(&popup, c);
458
459     if (!popup.mapped) {
460         /* show the dialog */
461         XMapWindow(ob_display, popup.bg);
462         XFlush(ob_display);
463         popup.mapped = TRUE;
464         screen_hide_desktop_popup();
465     }
466 }
467
468 void focus_cycle_popup_hide(void)
469 {
470     gulong ignore_start;
471
472     ignore_start = event_start_ignore_all_enters();
473
474     XUnmapWindow(ob_display, popup.bg);
475     XFlush(ob_display);
476
477     event_end_ignore_all_enters(ignore_start);
478
479     popup.mapped = FALSE;
480
481     while(popup.targets) {
482         ObFocusCyclePopupTarget *t = popup.targets->data;
483
484         RrImageUnref(t->icon);
485         g_free(t->text);
486         XDestroyWindow(ob_display, t->win);
487         g_free(t);
488
489         popup.targets = g_list_delete_link(popup.targets, popup.targets);
490     }
491     popup.n_targets = 0;
492     popup.last_target = NULL;
493
494     g_free(popup.hilite_rgba);
495     popup.hilite_rgba = NULL;
496 }
497
498 void focus_cycle_popup_single_show(struct _ObClient *c,
499                                    gboolean iconic_windows,
500                                    gboolean all_desktops,
501                                    gboolean dock_windows,
502                                    gboolean desktop_windows)
503 {
504     gchar *text;
505
506     g_assert(c != NULL);
507
508     /* do this stuff only when the dialog is first showing */
509     if (!popup.mapped) {
510         Rect *a;
511
512         popup_setup(&popup, FALSE, iconic_windows, all_desktops,
513                     dock_windows, desktop_windows);
514         g_assert(popup.targets == NULL);
515
516         /* position the popup */
517         a = screen_physical_area_active();
518         icon_popup_position(single_popup, CenterGravity,
519                             a->x + a->width / 2, a->y + a->height / 2);
520         icon_popup_height(single_popup, POPUP_HEIGHT);
521         icon_popup_min_width(single_popup, POPUP_WIDTH);
522         icon_popup_max_width(single_popup, MAX(a->width/3, POPUP_WIDTH));
523         icon_popup_text_width(single_popup, popup.maxtextw);
524         g_free(a);
525     }
526
527     text = popup_get_name(c);
528     icon_popup_show(single_popup, text, client_icon(c));
529     g_free(text);
530     screen_hide_desktop_popup();
531 }
532
533 void focus_cycle_popup_single_hide(void)
534 {
535     icon_popup_hide(single_popup);
536 }