477619f557c37afc448cc2abba1961cbb2d9672a
[dana/openbox-history.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     gchar *text;
46     Window win;
47 };
48
49 struct _ObFocusCyclePopup
50 {
51     ObWindow obwin;
52     Window bg;
53
54     Window text;
55
56     GList *targets;
57     gint n_targets;
58
59     const ObFocusCyclePopupTarget *last_target;
60
61     gint maxtextw;
62
63     RrAppearance *a_bg;
64     RrAppearance *a_text;
65     RrAppearance *a_icon;
66
67     RrPixel32 *hilite_rgba;
68
69     gboolean mapped;
70 };
71
72 /*! This popup shows all possible windows */
73 static ObFocusCyclePopup popup;
74 /*! This popup shows a single window */
75 static ObIconPopup *single_popup;
76
77 static gchar *popup_get_name (ObClient *c);
78 static void   popup_setup    (ObFocusCyclePopup *p,
79                               gboolean create_targets,
80                               gboolean iconic_windows,
81                               gboolean all_desktops,
82                               gboolean dock_windows,
83                               gboolean desktop_windows);
84 static void   popup_render   (ObFocusCyclePopup *p,
85                               const ObClient *c);
86
87 static Window create_window(Window parent, guint bwidth, gulong mask,
88                             XSetWindowAttributes *attr)
89 {
90     return XCreateWindow(ob_display, parent, 0, 0, 1, 1, bwidth,
91                          RrDepth(ob_rr_inst), InputOutput,
92                          RrVisual(ob_rr_inst), mask, attr);
93 }
94
95 void focus_cycle_popup_startup(gboolean reconfig)
96 {
97     XSetWindowAttributes attrib;
98
99     single_popup = icon_popup_new(TRUE);
100
101     popup.obwin.type = Window_Internal;
102     popup.a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
103     popup.a_text = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
104     popup.a_icon = RrAppearanceCopy(ob_rr_theme->a_clear_tex);
105
106     popup.a_text->surface.parent = popup.a_bg;
107     popup.a_icon->surface.parent = popup.a_bg;
108
109     popup.a_icon->texture[0].type = RR_TEXTURE_RGBA;
110
111     RrAppearanceAddTextures(popup.a_bg, 1);
112     popup.a_bg->texture[0].type = RR_TEXTURE_RGBA;
113
114     attrib.override_redirect = True;
115     attrib.border_pixel=RrColorPixel(ob_rr_theme->osd_border_color);
116     popup.bg = create_window(RootWindow(ob_display, ob_screen),
117                              ob_rr_theme->obwidth,
118                              CWOverrideRedirect | CWBorderPixel, &attrib);
119
120     popup.text = create_window(popup.bg, 0, 0, NULL);
121
122     popup.targets = NULL;
123     popup.n_targets = 0;
124     popup.last_target = NULL;
125
126     popup.hilite_rgba = NULL;
127
128     XMapWindow(ob_display, popup.text);
129
130     stacking_add(INTERNAL_AS_WINDOW(&popup));
131 }
132
133 void focus_cycle_popup_shutdown(gboolean reconfig)
134 {
135     icon_popup_free(single_popup);
136
137     stacking_remove(INTERNAL_AS_WINDOW(&popup));
138
139     while(popup.targets) {
140         ObFocusCyclePopupTarget *t = popup.targets->data;
141
142         g_free(t->text);
143         XDestroyWindow(ob_display, t->win);
144
145         popup.targets = g_list_delete_link(popup.targets, popup.targets);
146     }
147
148     g_free(popup.hilite_rgba);
149
150     XDestroyWindow(ob_display, popup.text);
151     XDestroyWindow(ob_display, popup.bg);
152
153     RrAppearanceFree(popup.a_icon);
154     RrAppearanceFree(popup.a_text);
155     RrAppearanceFree(popup.a_bg);
156 }
157
158 static void popup_setup(ObFocusCyclePopup *p, gboolean create_targets,
159                         gboolean iconic_windows, gboolean all_desktops,
160                         gboolean dock_windows, gboolean desktop_windows)
161 {
162     gint maxwidth, n;
163     GList *it;
164
165     g_assert(p->targets == NULL);
166     g_assert(p->n_targets == 0);
167
168     /* make its width to be the width of all the possible titles */
169
170     /* build a list of all the valid focus targets and measure their strings,
171        and count them */
172     maxwidth = 0;
173     n = 0;
174     for (it = g_list_last(focus_order); it; it = g_list_previous(it)) {
175         ObClient *ft = it->data;
176
177         if (focus_valid_target(ft,
178                                iconic_windows,
179                                all_desktops,
180                                dock_windows,
181                                desktop_windows))
182         {
183             gchar *text = popup_get_name(ft);
184
185             /* measure */
186             p->a_text->texture[0].data.text.string = text;
187             maxwidth = MAX(maxwidth, RrMinWidth(p->a_text));
188
189             if (!create_targets)
190                 g_free(text);
191             else {
192                 ObFocusCyclePopupTarget *t = g_new(ObFocusCyclePopupTarget, 1);
193
194                 t->client = ft;
195                 t->text = text;
196                 t->win = create_window(p->bg, 0, 0, NULL);
197
198                 XMapWindow(ob_display, t->win);
199
200                 p->targets = g_list_prepend(p->targets, t);
201                 ++n;
202             }
203         }
204     }
205
206     p->n_targets = n;
207     p->maxtextw = maxwidth;
208 }
209
210 static gchar *popup_get_name(ObClient *c)
211 {
212     ObClient *p;
213     gchar *title;
214     const gchar *desk = NULL;
215     gchar *ret;
216
217     /* find our highest direct parent */
218     p = client_search_top_direct_parent(c);
219
220     if (c->desktop != DESKTOP_ALL && c->desktop != screen_desktop)
221         desk = screen_desktop_names[c->desktop];
222
223     title = c->iconic ? c->icon_title : c->title;
224
225     /* use the transient's parent's title/icon if we don't have one */
226     if (p != c && title[0] == '\0')
227         title = p->iconic ? p->icon_title : p->title;
228
229     if (desk)
230         ret = g_strdup_printf("%s [%s]", title, desk);
231     else
232         ret = g_strdup(title);
233
234     return ret;
235 }
236
237 static void popup_render(ObFocusCyclePopup *p, const ObClient *c)
238 {
239     gint ml, mt, mr, mb;
240     gint l, t, r, b;
241     gint x, y, w, h;
242     Rect *screen_area = NULL;
243     gint icons_per_row;
244     gint icon_rows;
245     gint textx, texty, textw, texth;
246     gint rgbax, rgbay, rgbaw, rgbah;
247     gint icons_center_x;
248     gint innerw, innerh;
249     gint i;
250     GList *it;
251     const ObFocusCyclePopupTarget *newtarget;
252     gint newtargetx, newtargety;
253
254     screen_area = screen_physical_area_active();
255
256     /* get the outside margins */
257     RrMargins(p->a_bg, &ml, &mt, &mr, &mb);
258
259     /* get our outside borders */
260     l = ml + OUTSIDE_BORDER;
261     r = mr + OUTSIDE_BORDER;
262     t = mt + OUTSIDE_BORDER;
263     b = mb + OUTSIDE_BORDER;
264
265     /* get the icon pictures' sizes */
266     innerw = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
267     innerh = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
268
269     /* get the width from the text and keep it within limits */
270     w = l + r + p->maxtextw;
271     w = MIN(w, MAX(screen_area->width/3, POPUP_WIDTH)); /* max width */
272     w = MAX(w, POPUP_WIDTH); /* min width */
273
274     /* how many icons will fit in that row? make the width fit that */
275     w -= l + r;
276     icons_per_row = (w + ICON_SIZE - 1) / ICON_SIZE;
277     w = icons_per_row * ICON_SIZE + l + r;
278
279     /* how many rows do we need? */
280     icon_rows = (p->n_targets-1) / icons_per_row + 1;
281
282     /* get the text dimensions */
283     textw = w - l - r;
284     texth = RrMinHeight(p->a_text) + TEXT_BORDER * 2;
285
286     /* find the height of the dialog */
287     h = t + b + (icon_rows * ICON_SIZE) + (OUTSIDE_BORDER + texth);
288
289     /* get the position of the text */
290     textx = l;
291     texty = h - texth - b;
292
293     /* find the position for the popup (include the outer borders) */
294     x = screen_area->x + (screen_area->width -
295                           (w + ob_rr_theme->obwidth * 2)) / 2;
296     y = screen_area->y + (screen_area->height -
297                           (h + ob_rr_theme->obwidth * 2)) / 2;
298
299     /* get the dimensions of the target hilite texture */
300     rgbax = ml;
301     rgbay = mt;
302     rgbaw = w - ml - mr;
303     rgbah = h - mt - mb;
304
305     /* center the icons if there is less than one row */
306     if (icon_rows == 1)
307         icons_center_x = (w - p->n_targets * ICON_SIZE) / 2;
308     else
309         icons_center_x = 0;
310
311     if (!p->mapped) {
312         /* position the background but don't draw it*/
313         XMoveResizeWindow(ob_display, p->bg, x, y, w, h);
314
315         /* set up the hilite texture for the background */
316         p->a_bg->texture[0].data.rgba.width = rgbaw;
317         p->a_bg->texture[0].data.rgba.height = rgbah;
318         p->a_bg->texture[0].data.rgba.alpha = 0xff;
319         p->hilite_rgba = g_new(RrPixel32, rgbaw * rgbah);
320         p->a_bg->texture[0].data.rgba.data = p->hilite_rgba;
321
322         /* position the text, but don't draw it */
323         XMoveResizeWindow(ob_display, p->text, textx, texty, textw, texth);
324         p->a_text->surface.parentx = textx;
325         p->a_text->surface.parenty = texty;
326     }
327
328     /* find the focused target */
329     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
330         const ObFocusCyclePopupTarget *target = it->data;
331         const gint row = i / icons_per_row; /* starting from 0 */
332         const gint col = i % icons_per_row; /* starting from 0 */
333
334         if (target->client == c) {
335             /* save the target */
336             newtarget = target;
337             newtargetx = icons_center_x + l + (col * ICON_SIZE);
338             newtargety = t + (row * ICON_SIZE);
339
340             if (!p->mapped)
341                 break; /* if we're not dimensioning, then we're done */
342         }
343     }
344
345     g_assert(newtarget != NULL);
346
347     /* create the hilite under the target icon */
348     {
349         RrPixel32 color;
350         gint i, j, o;
351
352         color = ((ob_rr_theme->osd_color->r & 0xff) << RrDefaultRedOffset) +
353             ((ob_rr_theme->osd_color->g & 0xff) << RrDefaultGreenOffset) +
354             ((ob_rr_theme->osd_color->b & 0xff) << RrDefaultBlueOffset);
355
356         o = 0;
357         for (i = 0; i < rgbah; ++i)
358             for (j = 0; j < rgbaw; ++j) {
359                 guchar a;
360                 const gint x = j + rgbax - newtargetx;
361                 const gint y = i + rgbay - newtargety;
362
363                 if (x < 0 || x >= ICON_SIZE ||
364                     y < 0 || y >= ICON_SIZE)
365                 {
366                     /* outside the target */
367                     a = 0x00;
368                 }
369                 else if (x < ICON_HILITE_WIDTH ||
370                          x >= ICON_SIZE - ICON_HILITE_WIDTH ||
371                          y < ICON_HILITE_WIDTH ||
372                          y >= ICON_SIZE - ICON_HILITE_WIDTH)
373                 {
374                     /* the border of the target */
375                     a = 0x88;
376                 }
377                 else {
378                     /* the background of the target */
379                     a = 0x22;
380                 }
381
382                 p->hilite_rgba[o++] =
383                     color + (a << RrDefaultAlphaOffset);
384             }
385     }
386
387     /* * * draw everything * * */
388
389     /* draw the background */
390     RrPaint(p->a_bg, p->bg, w, h);
391
392     /* draw the icons */
393     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
394         const ObFocusCyclePopupTarget *target = it->data;
395
396         /* have to redraw the targetted icon and last targetted icon,
397            they can pick up the hilite changes in the backgroud */
398         if (!p->mapped || newtarget == target || p->last_target == target) {
399             const ObClientIcon *icon;
400             const gint row = i / icons_per_row; /* starting from 0 */
401             const gint col = i % icons_per_row; /* starting from 0 */
402             gint innerx, innery;
403
404             /* find the dimensions of the icon inside it */
405             innerx = icons_center_x + l + (col * ICON_SIZE);
406             innerx += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
407             innery = t + (row * ICON_SIZE);
408             innery += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
409
410             /* move the icon */
411             XMoveResizeWindow(ob_display, target->win,
412                               innerx, innery, innerw, innerh);
413
414             /* get the icon from the client */
415             icon = client_icon(target->client, innerw, innerh);
416             p->a_icon->texture[0].data.rgba.width = icon->width;
417             p->a_icon->texture[0].data.rgba.height = icon->height;
418             p->a_icon->texture[0].data.rgba.alpha =
419                 target->client->iconic ? OB_ICONIC_ALPHA : 0xff;
420             p->a_icon->texture[0].data.rgba.data = icon->data;
421
422             /* draw the icon */
423             p->a_icon->surface.parentx = innerx;
424             p->a_icon->surface.parenty = innery;
425             RrPaint(p->a_icon, target->win, innerw, innerh);
426         }
427     }
428
429     /* draw the text */
430     p->a_text->texture[0].data.text.string = newtarget->text;
431     p->a_text->surface.parentx = textx;
432     p->a_text->surface.parenty = texty;
433     RrPaint(p->a_text, p->text, textw, texth);
434
435     p->last_target = newtarget;
436
437     g_free(screen_area);
438 }
439
440 void focus_cycle_popup_show(ObClient *c, gboolean iconic_windows,
441                             gboolean all_desktops, gboolean dock_windows,
442                             gboolean desktop_windows)
443 {
444     g_assert(c != NULL);
445
446     /* do this stuff only when the dialog is first showing */
447     if (!popup.mapped)
448         popup_setup(&popup, TRUE, iconic_windows, all_desktops,
449                     dock_windows, desktop_windows);
450     g_assert(popup.targets != NULL);
451
452     popup_render(&popup, c);
453
454     if (!popup.mapped) {
455         /* show the dialog */
456         XMapWindow(ob_display, popup.bg);
457         XFlush(ob_display);
458         popup.mapped = TRUE;
459     }
460 }
461
462 void focus_cycle_popup_hide()
463 {
464     gulong ignore_start;
465
466     ignore_start = event_start_ignore_all_enters();
467
468     XUnmapWindow(ob_display, popup.bg);
469     XFlush(ob_display);
470
471     event_end_ignore_all_enters(ignore_start);
472
473     popup.mapped = FALSE;
474
475     while(popup.targets) {
476         ObFocusCyclePopupTarget *t = popup.targets->data;
477
478         g_free(t->text);
479         XDestroyWindow(ob_display, t->win);
480
481         popup.targets = g_list_delete_link(popup.targets, popup.targets);
482     }
483     popup.n_targets = 0;
484     popup.last_target = NULL;
485
486     g_free(popup.hilite_rgba);
487     popup.hilite_rgba = NULL;
488 }
489
490 void focus_cycle_popup_single_show(struct _ObClient *c,
491                                    gboolean iconic_windows,
492                                    gboolean all_desktops,
493                                    gboolean dock_windows,
494                                    gboolean desktop_windows)
495 {
496     gchar *text;
497
498     g_assert(c != NULL);
499
500     /* do this stuff only when the dialog is first showing */
501     if (!popup.mapped) {
502         Rect *a;
503
504         popup_setup(&popup, FALSE, iconic_windows, all_desktops,
505                     dock_windows, desktop_windows);
506         g_assert(popup.targets == NULL);
507
508         /* position the popup */
509         a = screen_physical_area_active();
510         icon_popup_position(single_popup, CenterGravity,
511                             a->x + a->width / 2, a->y + a->height / 2);
512         icon_popup_height(single_popup, POPUP_HEIGHT);
513         icon_popup_min_width(single_popup, POPUP_WIDTH);
514         icon_popup_max_width(single_popup, MAX(a->width/3, POPUP_WIDTH));
515         icon_popup_text_width(single_popup, popup.maxtextw);
516         g_free(a);
517     }
518
519     text = popup_get_name(c);
520     icon_popup_show(single_popup, text, client_icon(c, ICON_SIZE, ICON_SIZE));
521     g_free(text);
522 }
523
524 void focus_cycle_popup_single_hide()
525 {
526     icon_popup_hide(single_popup);
527 }