win_iconify.c revision 0bbfda8a 
1/*
2 * Window de/iconification handling
3 */
4
5#include "ctwm.h"
6
7#include <stdlib.h>
8#include <sys/time.h>
9
10#include <X11/extensions/shape.h>
11
12#include "events.h"
13#include "functions.h"
14#include "iconmgr.h"
15#include "icons.h"
16#include "list.h"
17#include "otp.h"
18#include "screen.h"
19#include "util.h"
20#include "vscreen.h"
21#include "win_iconify.h"
22#include "win_ops.h"
23#include "win_utils.h"
24#include "workspace_manager.h"
25
26
27/* Animations */
28static void MosaicFade(TwmWindow *tmp_win, Window blanket);
29static void ZoomInWindow(TwmWindow *tmp_win, Window blanket);
30static void ZoomOutWindow(TwmWindow *tmp_win, Window blanket);
31static void FadeWindow(TwmWindow *tmp_win, Window blanket);
32static void SweepWindow(TwmWindow *tmp_win, Window blanket);
33
34/* De/iconify utils */
35static void Zoom(Window wf, Window wt);
36static void ReMapOne(TwmWindow *t, TwmWindow *leader);
37static void waitamoment(float timeout);
38
39
40
41/*
42 * The main routines for iconifying...
43 */
44void
45Iconify(TwmWindow *tmp_win, int def_x, int def_y)
46{
47	TwmWindow *t;
48	bool iconify;
49	long eventMask;
50	WList *wl;
51	Window leader = (Window) - 1;
52	Window blanket = (Window) - 1;
53
54	iconify = (!tmp_win->iconify_by_unmapping);
55	t = NULL;
56	if(tmp_win->istransient) {
57		leader = tmp_win->transientfor;
58		t = GetTwmWindow(leader);
59	}
60	else if((leader = tmp_win->group) != 0 && leader != tmp_win->w) {
61		t = GetTwmWindow(leader);
62	}
63	if(t && t->icon_on) {
64		iconify = false;
65	}
66	if(iconify) {
67		if(!tmp_win->icon || !tmp_win->icon->w) {
68			CreateIconWindow(tmp_win, def_x, def_y);
69		}
70		else {
71			IconUp(tmp_win);
72		}
73		if(visible(tmp_win)) {
74			OtpRaise(tmp_win, IconWin);
75			XMapWindow(dpy, tmp_win->icon->w);
76		}
77	}
78	if(tmp_win->iconmanagerlist) {
79		for(wl = tmp_win->iconmanagerlist; wl != NULL; wl = wl->nextv) {
80			XMapWindow(dpy, wl->icon);
81		}
82	}
83
84	/* Don't mask anything yet, just get the current for various uses */
85	eventMask = mask_out_event(tmp_win->w, 0);
86
87	/* iconify transients and window group first */
88	UnmapTransients(tmp_win, iconify, eventMask);
89
90	if(iconify) {
91		Zoom(tmp_win->frame, tmp_win->icon->w);
92	}
93
94	/*
95	 * Prevent the receipt of an UnmapNotify, since that would
96	 * cause a transition to the Withdrawn state.
97	 */
98	tmp_win->mapped = false;
99
100	if((Scr->IconifyStyle != ICONIFY_NORMAL) && !Scr->WindowMask) {
101		XWindowAttributes winattrs;
102		XSetWindowAttributes attr;
103
104		XGetWindowAttributes(dpy, tmp_win->frame, &winattrs);
105		blanket = XCreateWindow(dpy, Scr->Root, winattrs.x, winattrs.y,
106		                        winattrs.width, winattrs.height, 0,
107		                        CopyFromParent, CopyFromParent,
108		                        CopyFromParent, None, &attr);
109		XMapWindow(dpy, blanket);
110	}
111
112	mask_out_event_mask(tmp_win->w, StructureNotifyMask, eventMask);
113	XUnmapWindow(dpy, tmp_win->w);
114	XUnmapWindow(dpy, tmp_win->frame);
115	restore_mask(tmp_win->w, eventMask);
116
117	SetMapStateProp(tmp_win, IconicState);
118
119	if((Scr->IconifyStyle != ICONIFY_NORMAL) && !Scr->WindowMask) {
120		switch(Scr->IconifyStyle) {
121			case ICONIFY_MOSAIC:
122				MosaicFade(tmp_win, blanket);
123				break;
124			case ICONIFY_ZOOMIN:
125				ZoomInWindow(tmp_win, blanket);
126				break;
127			case ICONIFY_ZOOMOUT:
128				ZoomOutWindow(tmp_win, blanket);
129				break;
130			case ICONIFY_FADE:
131				FadeWindow(tmp_win, blanket);
132				break;
133			case ICONIFY_SWEEP:
134				SweepWindow(tmp_win, blanket);
135				break;
136			case ICONIFY_NORMAL:
137				/* Placate insufficiently smart clang warning */
138				break;
139		}
140		XDestroyWindow(dpy, blanket);
141	}
142	if(tmp_win == Scr->Focus) {
143		SetFocus(NULL, EventTime);
144		if(! Scr->ClickToFocus) {
145			Scr->FocusRoot = true;
146		}
147	}
148	tmp_win->isicon = true;
149	tmp_win->icon_on = iconify;
150	WMapIconify(tmp_win);
151	if(! Scr->WindowMask && Scr->IconifyFunction.func != 0) {
152		char *action;
153		XEvent event;
154
155		action = Scr->IconifyFunction.item ? Scr->IconifyFunction.item->action : NULL;
156		ExecuteFunction(Scr->IconifyFunction.func, action,
157		                (Window) 0, tmp_win, &event, C_ROOT, false);
158	}
159	XSync(dpy, 0);
160}
161
162
163/*
164 * ... and its complement
165 */
166void
167DeIconify(TwmWindow *tmp_win)
168{
169	TwmWindow *t = tmp_win;
170	bool isicon = false;
171
172	/* de-iconify the main window */
173	if(Scr->WindowMask) {
174		XRaiseWindow(dpy, Scr->WindowMask);
175	}
176	if(tmp_win->isicon) {
177		isicon = true;
178		if(tmp_win->icon_on && tmp_win->icon && tmp_win->icon->w) {
179			Zoom(tmp_win->icon->w, tmp_win->frame);
180		}
181		else if(tmp_win->group != (Window) 0) {
182			t = GetTwmWindow(tmp_win->group);
183			if(t && t->icon_on && t->icon && t->icon->w) {
184				Zoom(t->icon->w, tmp_win->frame);
185			}
186		}
187	}
188
189	ReMapOne(tmp_win, t);
190
191	if(isicon &&
192	                (Scr->WarpCursor ||
193	                 LookInList(Scr->WarpCursorL, tmp_win->name, &tmp_win->class))) {
194		WarpToWindow(tmp_win, false);
195	}
196
197	/* now de-iconify any window group transients */
198	ReMapTransients(tmp_win);
199
200	if(! Scr->WindowMask && Scr->DeIconifyFunction.func != 0) {
201		char *action;
202		XEvent event;
203
204		action = Scr->DeIconifyFunction.item ?
205		         Scr->DeIconifyFunction.item->action : NULL;
206		ExecuteFunction(Scr->DeIconifyFunction.func, action,
207		                (Window) 0, tmp_win, &event, C_ROOT, false);
208	}
209	XSync(dpy, 0);
210}
211
212
213
214/*
215 * Animations for popping windows around.
216 */
217static void
218MosaicFade(TwmWindow *tmp_win, Window blanket)
219{
220	int         srect;
221	int         i, j, nrects;
222	Pixmap      mask;
223	GC          gc;
224	XGCValues   gcv;
225	XRectangle *rectangles;
226	int  width = tmp_win->frame_width;
227	int height = tmp_win->frame_height;
228
229	srect = (width < height) ? (width / 20) : (height / 20);
230	mask  = XCreatePixmap(dpy, blanket, width, height, 1);
231
232	gcv.foreground = 1;
233	gc = XCreateGC(dpy, mask, GCForeground, &gcv);
234	XFillRectangle(dpy, mask, gc, 0, 0, width, height);
235	gcv.function = GXclear;
236	XChangeGC(dpy, gc, GCFunction, &gcv);
237
238	nrects = ((width * height) / (srect * srect)) / 10;
239	rectangles = calloc(nrects, sizeof(XRectangle));
240	for(j = 0; j < nrects; j++) {
241		rectangles [j].width  = srect;
242		rectangles [j].height = srect;
243	}
244	for(i = 0; i < 10; i++) {
245		for(j = 0; j < nrects; j++) {
246			rectangles [j].x = ((lrand48() %  width) / srect) * srect;
247			rectangles [j].y = ((lrand48() % height) / srect) * srect;
248		}
249		XFillRectangles(dpy, mask, gc, rectangles, nrects);
250		XShapeCombineMask(dpy, blanket, ShapeBounding, 0, 0, mask, ShapeSet);
251		XFlush(dpy);
252		waitamoment(0.020);
253	}
254	XFreePixmap(dpy, mask);
255	XFreeGC(dpy, gc);
256	free(rectangles);
257}
258
259
260static void
261ZoomInWindow(TwmWindow *tmp_win, Window blanket)
262{
263	Pixmap        mask;
264	GC            gc, gcn;
265	XGCValues     gcv;
266
267	int i, nsteps = 20;
268	int w = tmp_win->frame_width;
269	int h = tmp_win->frame_height;
270	int step = (MAX(w, h)) / (2.0 * nsteps);
271
272	mask = XCreatePixmap(dpy, blanket, w, h, 1);
273	gcv.foreground = 1;
274	gc  = XCreateGC(dpy, mask, GCForeground, &gcv);
275	gcv.function = GXclear;
276	gcn = XCreateGC(dpy, mask, GCForeground | GCFunction, &gcv);
277
278	for(i = 0; i < nsteps; i++) {
279		XFillRectangle(dpy, mask, gcn, 0, 0, w, h);
280		XFillArc(dpy, mask, gc, (w / 2) - ((nsteps - i) * step),
281		         (h / 2) - ((nsteps - i) * step),
282		         2 * (nsteps - i) * step,
283		         2 * (nsteps - i) * step,
284		         0, 360 * 64);
285		XShapeCombineMask(dpy, blanket, ShapeBounding, 0, 0, mask, ShapeSet);
286		XFlush(dpy);
287		waitamoment(0.020);
288	}
289}
290
291
292static void
293ZoomOutWindow(TwmWindow *tmp_win, Window blanket)
294{
295	Pixmap        mask;
296	GC            gc;
297	XGCValues     gcv;
298
299	int i, nsteps = 20;
300	int w = tmp_win->frame_width;
301	int h = tmp_win->frame_height;
302	int step = (MAX(w, h)) / (2.0 * nsteps);
303
304	mask  = XCreatePixmap(dpy, blanket, w, h, 1);
305	gcv.foreground = 1;
306	gc = XCreateGC(dpy, mask, GCForeground, &gcv);
307	XFillRectangle(dpy, mask, gc, 0, 0, w, h);
308	gcv.function = GXclear;
309	XChangeGC(dpy, gc, GCFunction, &gcv);
310
311	for(i = 0; i < nsteps; i++) {
312		XFillArc(dpy, mask, gc, (w / 2) - (i * step),
313		         (h / 2) - (i * step),
314		         2 * i * step,
315		         2 * i * step,
316		         0, 360 * 64);
317		XShapeCombineMask(dpy, blanket, ShapeBounding, 0, 0, mask, ShapeSet);
318		XFlush(dpy);
319		waitamoment(0.020);
320	}
321}
322
323
324void
325FadeWindow(TwmWindow *tmp_win, Window blanket)
326{
327	Pixmap        mask, stipple;
328	GC            gc;
329	XGCValues     gcv;
330	static unsigned char stipple_bits[] = { 0x0F, 0x0F,
331	                                        0xF0, 0xF0,
332	                                        0x0F, 0x0F,
333	                                        0xF0, 0xF0,
334	                                        0x0F, 0x0F,
335	                                        0xF0, 0xF0,
336	                                        0x0F, 0x0F,
337	                                        0xF0, 0xF0,
338	                                      };
339	int w = tmp_win->frame_width;
340	int h = tmp_win->frame_height;
341
342	stipple = XCreateBitmapFromData(dpy, blanket, (char *)stipple_bits, 8, 8);
343	mask    = XCreatePixmap(dpy, blanket, w, h, 1);
344	gcv.background = 0;
345	gcv.foreground = 1;
346	gcv.stipple    = stipple;
347	gcv.fill_style = FillOpaqueStippled;
348	gc = XCreateGC(dpy, mask, GCBackground | GCForeground | GCFillStyle | GCStipple,
349	               &gcv);
350	XFillRectangle(dpy, mask, gc, 0, 0, w, h);
351
352	XShapeCombineMask(dpy, blanket, ShapeBounding, 0, 0, mask, ShapeSet);
353	XFlush(dpy);
354	waitamoment(0.10);
355	XFreePixmap(dpy, stipple);
356	XFlush(dpy);
357}
358
359
360static void
361SweepWindow(TwmWindow *tmp_win, Window blanket)
362{
363	float step = 0.0;
364	int i, nsteps = 20;
365	int dir = 0, dist = tmp_win->frame_x, dist1;
366
367	dist1 = tmp_win->frame_y;
368	if(dist1 < dist) {
369		dir = 1;
370		dist = dist1;
371	}
372	dist1 = tmp_win->vs->w - (tmp_win->frame_x + tmp_win->frame_width);
373	if(dist1 < dist) {
374		dir = 2;
375		dist = dist1;
376	}
377	dist1 = tmp_win->vs->h - (tmp_win->frame_y + tmp_win->frame_height);
378	if(dist1 < dist) {
379		dir = 3;
380		dist = dist1;
381	}
382
383	switch(dir) {
384		case 0:
385			step = tmp_win->frame_x + tmp_win->frame_width;
386			break;
387		case 1:
388			step = tmp_win->frame_y + tmp_win->frame_height;
389			break;
390		case 2:
391			step = tmp_win->vs->w - tmp_win->frame_x;
392			break;
393		case 3:
394			step = tmp_win->vs->h - tmp_win->frame_y;
395			break;
396	}
397	step /= (float) nsteps;
398	step /= (float) nsteps;
399	for(i = 0; i < 20; i++) {
400		int x = tmp_win->frame_x;
401		int y = tmp_win->frame_y;
402		switch(dir) {
403			case 0:
404				x -= i * i * step;
405				break;
406			case 1:
407				y -= i * i * step;
408				break;
409			case 2:
410				x += i * i * step;
411				break;
412			case 3:
413				y += i * i * step;
414				break;
415		}
416		XMoveWindow(dpy, blanket, x, y);
417		XFlush(dpy);
418		waitamoment(0.020);
419	}
420}
421
422
423
424/*
425 * Utils used by various bits above
426 */
427
428/***********************************************************************
429 *
430 *  Procedure:
431 *      Zoom - zoom in or out of an icon
432 *
433 *  Inputs:
434 *      wf      - window to zoom from
435 *      wt      - window to zoom to
436 *
437 ***********************************************************************
438 */
439static void
440Zoom(Window wf, Window wt)
441{
442	int fx, fy, tx, ty;                 /* from, to */
443	unsigned int fw, fh, tw, th;        /* from, to */
444	long dx, dy, dw, dh;
445	long z;
446	int j;
447
448	if((Scr->IconifyStyle != ICONIFY_NORMAL) || !Scr->DoZoom
449	                || Scr->ZoomCount < 1) {
450		return;
451	}
452
453	if(wf == None || wt == None) {
454		return;
455	}
456
457	XGetGeometry(dpy, wf, &JunkRoot, &fx, &fy, &fw, &fh, &JunkBW, &JunkDepth);
458	XGetGeometry(dpy, wt, &JunkRoot, &tx, &ty, &tw, &th, &JunkBW, &JunkDepth);
459
460	dx = (long) tx - (long) fx; /* going from -> to */
461	dy = (long) ty - (long) fy; /* going from -> to */
462	dw = (long) tw - (long) fw; /* going from -> to */
463	dh = (long) th - (long) fh; /* going from -> to */
464	z = (long)(Scr->ZoomCount + 1);
465
466	for(j = 0; j < 2; j++) {
467		long i;
468
469		XDrawRectangle(dpy, Scr->Root, Scr->DrawGC, fx, fy, fw, fh);
470		for(i = 1; i < z; i++) {
471			int x = fx + (int)((dx * i) / z);
472			int y = fy + (int)((dy * i) / z);
473			unsigned width = (unsigned)(((long) fw) + (dw * i) / z);
474			unsigned height = (unsigned)(((long) fh) + (dh * i) / z);
475
476			XDrawRectangle(dpy, Scr->Root, Scr->DrawGC,
477			               x, y, width, height);
478		}
479		XDrawRectangle(dpy, Scr->Root, Scr->DrawGC, tx, ty, tw, th);
480	}
481}
482
483
484static void
485ReMapOne(TwmWindow *t, TwmWindow *leader)
486{
487	if(t->icon_on) {
488		Zoom(t->icon->w, t->frame);
489	}
490	else if(leader->icon) {
491		Zoom(leader->icon->w, t->frame);
492	}
493
494	if(!t->squeezed) {
495		XMapWindow(dpy, t->w);
496	}
497	t->mapped = true;
498	if(false && Scr->Root != Scr->CaptiveRoot) {        /* XXX dubious test */
499		ReparentWindow(dpy, t, WinWin, Scr->Root, t->frame_x, t->frame_y);
500	}
501	if(!Scr->NoRaiseDeicon) {
502		OtpRaise(t, WinWin);
503	}
504	XMapWindow(dpy, t->frame);
505	SetMapStateProp(t, NormalState);
506
507	if(t->icon && t->icon->w) {
508		XUnmapWindow(dpy, t->icon->w);
509		IconDown(t);
510		if(Scr->ShrinkIconTitles) {
511			t->icon->title_shrunk = true;
512		}
513	}
514	if(t->iconmanagerlist) {
515		WList *wl;
516
517		for(wl = t->iconmanagerlist; wl != NULL; wl = wl->nextv) {
518			XUnmapWindow(dpy, wl->icon);
519		}
520	}
521	t->isicon = false;
522	t->icon_on = false;
523	WMapDeIconify(t);
524}
525
526
527/*
528 * Mostly internal util of iconification, but squeezing code needs it
529 * too.
530 */
531void
532ReMapTransients(TwmWindow *tmp_win)
533{
534	TwmWindow *t;
535
536	/* find t such that it is a transient or group member window */
537	for(t = Scr->FirstWindow; t != NULL; t = t->next) {
538		if(t != tmp_win &&
539		                ((t->istransient && t->transientfor == tmp_win->w) ||
540		                 (t->group == tmp_win->w && t->isicon))) {
541			ReMapOne(t, tmp_win);
542		}
543	}
544}
545
546
547/*
548 * Ditto previous note about squeezing.
549 */
550void
551UnmapTransients(TwmWindow *tmp_win, bool iconify, long eventMask)
552{
553	TwmWindow *t;
554
555	for(t = Scr->FirstWindow; t != NULL; t = t->next) {
556		if(t != tmp_win &&
557		                ((t->istransient && t->transientfor == tmp_win->w) ||
558		                 t->group == tmp_win->w)) {
559			if(iconify) {
560				if(t->icon_on) {
561					Zoom(t->icon->w, tmp_win->icon->w);
562				}
563				else if(tmp_win->icon) {
564					Zoom(t->frame, tmp_win->icon->w);
565				}
566			}
567
568			/*
569			 * Prevent the receipt of an UnmapNotify, since that would
570			 * cause a transition to the Withdrawn state.
571			 */
572			t->mapped = false;
573
574			/*
575			 * Note that here, we're setting masks relative to what we
576			 * were passed, which is that of the window these are
577			 * transient for, rather than relative to these windows'
578			 * current masks.  I believe in practice it's the same thing,
579			 * and it saves getting attributes on each for masking.
580			 * Still, a little odd...
581			 */
582			mask_out_event_mask(t->w, StructureNotifyMask, eventMask);
583			XUnmapWindow(dpy, t->w);
584			XUnmapWindow(dpy, t->frame);
585			restore_mask(t->w, eventMask);
586
587			if(t->icon && t->icon->w) {
588				XUnmapWindow(dpy, t->icon->w);
589			}
590			SetMapStateProp(t, IconicState);
591			if(t == Scr->Focus) {
592				SetFocus(NULL, EventTime);
593				if(! Scr->ClickToFocus) {
594					Scr->FocusRoot = true;
595				}
596			}
597			if(t->iconmanagerlist) {
598				XMapWindow(dpy, t->iconmanagerlist->icon);
599			}
600			t->isicon = true;
601			t->icon_on = false;
602			WMapIconify(t);
603		}
604	}
605}
606
607
608static void
609waitamoment(float timeout)
610{
611	struct timeval timeoutstruct;
612	int usec = timeout * 1000000;
613	timeoutstruct.tv_usec = usec % (unsigned long) 1000000;
614	timeoutstruct.tv_sec  = usec / (unsigned long) 1000000;
615	select(0, NULL, NULL, NULL, &timeoutstruct);
616}
617