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- Committer: Sam Spilsbury
- Date: 2011-07-12 08:07:45 UTC
- Revision ID: sam.spilsbury@canonical.com-20110712080745-glytqbjoa84xeo0f
Sync in changes from upstream
- files added:
- animation
- animation/docs
- animation/include
- animation/include/animation
- animation/src
- colorfilter
- colorfilter/data
- colorfilter/data/filters
- colorfilter/src
- expo
- expo/src
- ezoom
- ezoom/src
- grid
- grid/src
- jpeg
- jpeg/src
- kdecompat
- kdecompat/src
- mag
- mag/images
- mag/images/Gnome
- mag/images/Oxygen
- mag/src
- mousepoll
- mousepoll/include
- mousepoll/include/mousepoll
- mousepoll/src
- neg
- neg/src
- opacify
- opacify/src
- put
- put/src
- resizeinfo
- resizeinfo/src
- ring
- ring/src
- scaleaddon
- scaleaddon/src
- session
- session/src
- shift
- shift/src
- snap
- snap/src
- staticswitcher
- staticswitcher/src
- text
- text/include
- text/include/text
- text/src
- thumbnail
- thumbnail/src
- titleinfo
- titleinfo/src
- vpswitch
- vpswitch/src
- wall
- wall/src
- winrules
- winrules/src
- workarounds
- workarounds/src
added
removed
ezoom/src/ezoom.cpp
1
/*
2
* Copyright © 2005 Novell, Inc.
3
* Copyright (C) 2007, 2008,2010 Kristian Lyngstøl
4
*
5
* Permission to use, copy, modify, distribute, and sell this software
6
* and its documentation for any purpose is hereby granted without
7
* fee, provided that the above copyright notice appear in all copies
8
* and that both that copyright notice and this permission notice
9
* appear in supporting documentation, and that the name of
10
* Novell, Inc. not be used in advertising or publicity pertaining to
11
* distribution of the software without specific, written prior permission.
12
* Novell, Inc. makes no representations about the suitability of this
13
* software for any purpose. It is provided "as is" without express or
14
* implied warranty.
15
*
16
* NOVELL, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
17
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
18
* NO EVENT SHALL NOVELL, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT OR
19
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
20
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
21
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
22
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23
*
24
*
25
* Author(s):
26
* - Most features beyond basic zoom;
27
* Kristian Lyngstol <kristian@bohemians.org>
28
* - Original zoom plug-in; David Reveman <davidr@novell.com>
29
* - Original port to C++ by Sam Spilsbury <smspillaz@gmail.com>
30
*
31
* Description:
32
*
33
* This plug-in offers zoom functionality with focus tracking,
34
* fit-to-window actions, mouse panning, zoom area locking. Without
35
* disabling input.
36
*
37
* Note on actual zoom process
38
*
39
* The animation is done in preparePaintScreen, while instant movements
40
* are done by calling updateActualTranslate () after updating the
41
* translations. This causes [xyz]trans to be re-calculated. We keep track
42
* of each head separately.
43
*
44
* Note on input
45
*
46
* We can not redirect input yet, but this plug-in offers two fundamentally
47
* different approaches to achieve input enabled zoom:
48
*
49
* 1.
50
* Always have the zoomed area be in sync with the mouse cursor. This binds
51
* the zoom area to the mouse position at any given time. It allows using
52
* the original mouse cursor drawn by X, and is technically very safe.
53
* First used in Beryl's inputzoom.
54
*
55
* 2.
56
* Hide the real cursor and draw our own where it would be when zoomed in.
57
* This allows us to navigate with the mouse without constantly moving the
58
* zoom area. This is fairly close to what we want in the end when input
59
* redirection is available.
60
*
61
* This second method has one huge issue, which is bugged XFixes. After
62
* hiding the cursor once with XFixes, some mouse cursors will simply be
63
* invisible. The Firefox loading cursor being one of them.
64
*
65
* An other minor annoyance is that mouse sensitivity seems to increase as
66
* you zoom in, since the mouse isn't really zoomed at all.
67
*
68
* Todo:
69
* - Walk through C++ port and adjust comments for 2010.
70
* - See if anyone misses the filter setting
71
* - Verify XFixes fix... err.
72
* - Different multi head modes
73
*/
74
75
#include "ezoom.h"
76
77
COMPIZ_PLUGIN_20090315 (ezoom, ZoomPluginVTable)
78
79
80
/*
81
* This toggles paint functions. We don't need to continually run code when we
82
* are not doing anything
83
*/
84
static inline void
85
toggleFunctions (bool state)
86
{
87
ZOOM_SCREEN (screen);
88
89
screen->handleEventSetEnabled (zs, state);
90
zs->cScreen->preparePaintSetEnabled (zs, state);
91
zs->gScreen->glPaintOutputSetEnabled (zs, state);
92
zs->cScreen->donePaintSetEnabled (zs, state);
93
}
94
95
/* Check if the output is valid */
96
static inline bool
97
outputIsZoomArea (int out)
98
{
99
ZOOM_SCREEN (screen);
100
101
if (out < 0)
102
return false;
103
else if ((unsigned int) out >= zs->zooms.size ())
104
zs->zooms.resize (screen->outputDevs ().size ());
105
return true;
106
}
107
108
/* Check if zoom is active on the output specified */
109
static inline bool
110
isActive (int out)
111
{
112
ZOOM_SCREEN (screen);
113
114
if (!outputIsZoomArea (out))
115
return false;
116
if (zs->grabbed & (1 << zs->zooms.at (out).output))
117
return true;
118
return false;
119
}
120
121
/* Check if we are zoomed out and not going anywhere
122
* (similar to isActive but based on actual zoom, not grab)
123
*/
124
static inline bool
125
isZoomed (int out)
126
{
127
ZOOM_SCREEN (screen);
128
129
if (!outputIsZoomArea (out))
130
return false;
131
132
if (zs->zooms.at (out).currentZoom != 1.0f
133
|| zs->zooms.at (out).newZoom != 1.0f)
134
return true;
135
136
if (zs->zooms.at (out).zVelocity != 0.0f)
137
return true;
138
139
return false;
140
}
141
142
/* Returns the distance to the defined edge in zoomed pixels. */
143
int
144
EZoomScreen::distanceToEdge (int out, EZoomScreen::ZoomEdge edge)
145
{
146
int x1,y1,x2,y2;
147
CompOutput *o = &screen->outputDevs ().at (out);
148
149
if (!isActive (out))
150
return 0;
151
convertToZoomedTarget (out, o->region ()->extents.x2,
152
o->region ()->extents.y2, &x2, &y2);
153
convertToZoomedTarget (out, o->region ()->extents.x1,
154
o->region ()->extents.y1, &x1, &y1);
155
switch (edge)
156
{
157
case NORTH: return o->region ()->extents.y1 - y1;
158
case SOUTH: return y2 - o->region ()->extents.y2;
159
case EAST: return x2 - o->region ()->extents.x2;
160
case WEST: return o->region ()->extents.x1 - x1;
161
}
162
return 0; // Never reached.
163
}
164
165
/* Update/set translations based on zoom level and real translate. */
166
void
167
EZoomScreen::ZoomArea::updateActualTranslates ()
168
{
169
xtrans = -realXTranslate * (1.0f - currentZoom);
170
ytrans = realYTranslate * (1.0f - currentZoom);
171
}
172
173
/* Returns true if the head in question is currently moving.
174
* Since we don't always bother resetting everything when
175
* canceling zoom, we check for the condition of being completely
176
* zoomed out and not zooming in/out first.
177
*/
178
bool
179
EZoomScreen::isInMovement (int out)
180
{
181
if (zooms.at (out).currentZoom == 1.0f &&
182
zooms.at (out).newZoom == 1.0f &&
183
zooms.at (out).zVelocity == 0.0f)
184
return false;
185
if (zooms.at (out).currentZoom != zooms.at (out).newZoom ||
186
zooms.at (out).xVelocity || zooms.at (out).yVelocity ||
187
zooms.at (out).zVelocity)
188
return true;
189
if (zooms.at (out).xTranslate != zooms.at (out).realXTranslate ||
190
zooms.at (out).yTranslate != zooms.at (out).realYTranslate)
191
return true;
192
return false;
193
}
194
195
/* Set the initial values of a zoom area. */
196
EZoomScreen::ZoomArea::ZoomArea (int out) :
197
output (out),
198
viewport (~0),
199
currentZoom (1.0f),
200
newZoom (1.0f),
201
xVelocity (0.0f),
202
yVelocity (0.0f),
203
zVelocity (0.0f),
204
xTranslate (0.0f),
205
yTranslate (0.0f),
206
realXTranslate (0.0f),
207
realYTranslate (0.0f),
208
locked (false)
209
{
210
updateActualTranslates ();
211
}
212
213
EZoomScreen::ZoomArea::ZoomArea () :
214
viewport (~0),
215
currentZoom (1.0f),
216
newZoom (1.0f),
217
xVelocity (0.0f),
218
yVelocity (0.0f),
219
zVelocity (0.0f),
220
xTranslate (0.0f),
221
yTranslate (0.0f),
222
realXTranslate (0.0f),
223
realYTranslate (0.0f),
224
locked (false)
225
{
226
}
227
/* Adjust the velocity in the z-direction. */
228
void
229
EZoomScreen::adjustZoomVelocity (int out, float chunk)
230
{
231
float d, adjust, amount;
232
233
d = (zooms.at (out).newZoom - zooms.at (out).currentZoom) * 75.0f;
234
235
adjust = d * 0.002f;
236
amount = fabs (d);
237
if (amount < 1.0f)
238
amount = 1.0f;
239
else if (amount > 5.0f)
240
amount = 5.0f;
241
242
zooms.at (out).zVelocity =
243
(amount * zooms.at (out).zVelocity + adjust) / (amount + 1.0f);
244
245
if (fabs (d) < 0.1f && fabs (zooms.at (out).zVelocity) < 0.005f)
246
{
247
zooms.at (out).currentZoom = zooms.at (out).newZoom;
248
zooms.at (out).zVelocity = 0.0f;
249
}
250
else
251
{
252
zooms.at (out).currentZoom += (zooms.at (out).zVelocity * chunk) /
253
cScreen->redrawTime ();
254
}
255
}
256
257
/* Adjust the X/Y velocity based on target translation and real
258
* translation. */
259
void
260
EZoomScreen::adjustXYVelocity (int out, float chunk)
261
{
262
float xdiff, ydiff;
263
float xadjust, yadjust;
264
float xamount, yamount;
265
266
zooms.at (out).xVelocity /= 1.25f;
267
zooms.at (out).yVelocity /= 1.25f;
268
xdiff =
269
(zooms.at (out).xTranslate - zooms.at (out).realXTranslate) *
270
75.0f;
271
ydiff =
272
(zooms.at (out).yTranslate - zooms.at (out).realYTranslate) *
273
75.0f;
274
xadjust = xdiff * 0.002f;
275
yadjust = ydiff * 0.002f;
276
xamount = fabs (xdiff);
277
yamount = fabs (ydiff);
278
279
if (xamount < 1.0f)
280
xamount = 1.0f;
281
else if (xamount > 5.0)
282
xamount = 5.0f;
283
284
if (yamount < 1.0f)
285
yamount = 1.0f;
286
else if (yamount > 5.0)
287
yamount = 5.0f;
288
289
zooms.at (out).xVelocity =
290
(xamount * zooms.at (out).xVelocity + xadjust) / (xamount + 1.0f);
291
zooms.at (out).yVelocity =
292
(yamount * zooms.at (out).yVelocity + yadjust) / (yamount + 1.0f);
293
294
if ((fabs(xdiff) < 0.1f && fabs (zooms.at (out).xVelocity) < 0.005f) &&
295
(fabs(ydiff) < 0.1f && fabs (zooms.at (out).yVelocity) < 0.005f))
296
{
297
zooms.at (out).realXTranslate = zooms.at (out).xTranslate;
298
zooms.at (out).realYTranslate = zooms.at (out).yTranslate;
299
zooms.at (out).xVelocity = 0.0f;
300
zooms.at (out).yVelocity = 0.0f;
301
return;
302
}
303
304
zooms.at (out).realXTranslate +=
305
(zooms.at (out).xVelocity * chunk) / cScreen->redrawTime ();
306
zooms.at (out).realYTranslate +=
307
(zooms.at (out).yVelocity * chunk) / cScreen->redrawTime ();
308
}
309
310
/* Animate the movement (if any) in preparation of a paint screen. */
311
void
312
EZoomScreen::preparePaint (int msSinceLastPaint)
313
{
314
if (grabbed)
315
{
316
int steps;
317
float amount, chunk;
318
319
amount = msSinceLastPaint * 0.05f * optionGetSpeed ();
320
steps = amount / (0.5f * optionGetTimestep ());
321
if (!steps)
322
steps = 1;
323
chunk = amount / (float) steps;
324
while (steps--)
325
{
326
unsigned int out;
327
for (out = 0; out < zooms.size (); out++)
328
{
329
if (!isInMovement (out) || !isActive (out))
330
continue;
331
332
adjustXYVelocity (out, chunk);
333
adjustZoomVelocity (out, chunk);
334
zooms.at (out).updateActualTranslates ();
335
if (!isZoomed (out))
336
{
337
zooms.at (out).xVelocity = zooms.at (out).yVelocity =
338
0.0f;
339
grabbed &= ~(1 << zooms.at (out).output);
340
if (!grabbed)
341
{
342
cScreen->damageScreen ();
343
toggleFunctions (false);
344
}
345
}
346
}
347
}
348
if (optionGetZoomMode () == EzoomOptions::ZoomModeSyncMouse)
349
syncCenterToMouse ();
350
}
351
352
cScreen->preparePaint (msSinceLastPaint);
353
}
354
355
/* Damage screen if we're still moving. */
356
void
357
EZoomScreen::donePaint ()
358
{
359
if (grabbed)
360
{
361
unsigned int out;
362
for (out = 0; out < zooms.size (); out++)
363
{
364
if (isInMovement (out) && isActive (out))
365
{
366
cScreen->damageScreen ();
367
break;
368
}
369
}
370
}
371
else if (grabIndex)
372
cScreen->damageScreen ();
373
else
374
toggleFunctions (false);
375
376
cScreen->donePaint ();
377
}
378
/* Draws a box from the screen coordinates inx1,iny1 to inx2,iny2 */
379
void
380
EZoomScreen::drawBox (const GLMatrix &transform,
381
CompOutput *output,
382
CompRect box)
383
{
384
GLMatrix zTransform = transform;
385
int x1,x2,y1,y2;
386
int inx1, inx2, iny1, iny2;
387
int out = output->id ();
388
389
zTransform.toScreenSpace (output, -DEFAULT_Z_CAMERA);
390
convertToZoomed (out, box.x1 (), box.y1 (), &inx1, &iny1);
391
convertToZoomed (out, box.x2 (), box.y2 (), &inx2, &iny2);
392
393
x1 = MIN (inx1, inx2);
394
y1 = MIN (iny1, iny2);
395
x2 = MAX (inx1, inx2);
396
y2 = MAX (iny1, iny2);
397
glPushMatrix ();
398
glLoadMatrixf (zTransform.getMatrix ());
399
glDisableClientState (GL_TEXTURE_COORD_ARRAY);
400
glEnable (GL_BLEND);
401
glColor4us (0x2fff, 0x2fff, 0x4fff, 0x4fff);
402
glRecti (x1,y2,x2,y1);
403
glColor4us (0x2fff, 0x2fff, 0x4fff, 0x9fff);
404
glBegin (GL_LINE_LOOP);
405
glVertex2i (x1, y1);
406
glVertex2i (x2, y1);
407
glVertex2i (x2, y2);
408
glVertex2i (x1, y2);
409
glEnd ();
410
glColor4usv (defaultColor);
411
glDisable (GL_BLEND);
412
glEnableClientState (GL_TEXTURE_COORD_ARRAY);
413
glPopMatrix ();
414
}
415
/* Apply the zoom if we are grabbed.
416
* Make sure to use the correct filter.
417
*/
418
bool
419
EZoomScreen::glPaintOutput (const GLScreenPaintAttrib &attrib,
420
const GLMatrix &transform,
421
const CompRegion ®ion,
422
CompOutput *output,
423
unsigned int mask)
424
{
425
bool status;
426
int out = output->id ();
427
428
if (isActive (out))
429
{
430
GLScreenPaintAttrib sa = attrib;
431
GLMatrix zTransform = transform;
432
433
mask &= ~PAINT_SCREEN_REGION_MASK;
434
mask |= PAINT_SCREEN_CLEAR_MASK;
435
436
zTransform.scale (1.0f / zooms.at (out).currentZoom,
437
1.0f / zooms.at (out).currentZoom,
438
1.0f);
439
zTransform.translate (zooms.at (out).xtrans,
440
zooms.at (out).ytrans,
441
0);
442
443
mask |= PAINT_SCREEN_TRANSFORMED_MASK;
444
445
status = gScreen->glPaintOutput (sa, zTransform, region, output, mask);
446
447
drawCursor (output, transform);
448
449
}
450
else
451
{
452
status = gScreen->glPaintOutput (attrib, transform, region, output,
453
mask);
454
}
455
if (grabIndex)
456
drawBox (transform, output, box);
457
458
return status;
459
}
460
461
/* Makes sure we're not attempting to translate too far.
462
* We are restricted to 0.5 to not go beyond the end
463
* of the screen/head. */
464
static inline void
465
constrainZoomTranslate ()
466
{
467
unsigned int out;
468
ZOOM_SCREEN (screen);
469
470
for (out = 0; out < zs->zooms.size (); out++)
471
{
472
if (zs->zooms.at (out).xTranslate > 0.5f)
473
zs->zooms.at (out).xTranslate = 0.5f;
474
else if (zs->zooms.at (out).xTranslate < -0.5f)
475
zs->zooms.at (out).xTranslate = -0.5f;
476
477
if (zs->zooms.at (out).yTranslate > 0.5f)
478
zs->zooms.at (out).yTranslate = 0.5f;
479
else if (zs->zooms.at (out).yTranslate < -0.5f)
480
zs->zooms.at (out).yTranslate = -0.5f;
481
}
482
}
483
484
/* Functions for adjusting the zoomed area.
485
* These are the core of the zoom plug-in; Anything wanting
486
* to adjust the zoomed area must use setCenter or setZoomArea
487
* and setScale or front ends to them. */
488
489
/* Sets the center of the zoom area to X,Y.
490
* We have to be able to warp the pointer here: If we are moved by
491
* anything except mouse movement, we have to sync the
492
* mouse pointer. This is to allow input, and is NOT necessary
493
* when input redirection is available to us or if we're cheating
494
* and using a scaled mouse cursor to imitate IR.
495
* The center is not the center of the screen. This is the target-center;
496
* that is, it's the point that's the same regardless of zoom level.
497
*/
498
void
499
EZoomScreen::setCenter (int x, int y, bool instant)
500
{
501
int out = screen->outputDeviceForPoint (x, y);
502
CompOutput *o = &screen->outputDevs ().at (out);
503
504
if (zooms.at (out).locked)
505
return;
506
507
zooms.at (out).xTranslate = (float)
508
((x - o->x1 ()) - o->width () / 2) / (o->width ());
509
zooms.at (out).yTranslate = (float)
510
((y - o->y1 ()) - o->height () / 2) / (o->height ());
511
512
if (instant)
513
{
514
zooms.at (out).realXTranslate = zooms.at (out).xTranslate;
515
zooms.at (out).realYTranslate = zooms.at (out).yTranslate;
516
zooms.at (out).yVelocity = 0.0f;
517
zooms.at (out).xVelocity = 0.0f;
518
zooms.at (out).updateActualTranslates ();
519
}
520
521
if (optionGetZoomMode () == EzoomOptions::ZoomModePanArea)
522
restrainCursor (out);
523
}
524
525
/* Zooms the area described.
526
* The math could probably be cleaned up, but should be correct now. */
527
void
528
EZoomScreen::setZoomArea (int x,
529
int y,
530
int width,
531
int height,
532
bool instant)
533
{
534
CompWindow::Geometry outGeometry (x, y, width, height, 0);
535
int out = screen->outputDeviceForGeometry (outGeometry);
536
CompOutput *o = &screen->outputDevs ().at (out);
537
538
if (zooms.at (out).newZoom == 1.0f)
539
return;
540
541
if (zooms.at (out).locked)
542
return;
543
zooms.at (out).xTranslate =
544
(float) -((o->width () / 2) - (x + (width / 2) - o->x1 ()))
545
/ (o->width ());
546
zooms.at (out).xTranslate /= (1.0f - zooms.at (out).newZoom);
547
zooms.at (out).yTranslate =
548
(float) -((o->height () / 2) - (y + (height / 2) - o->y1 ()))
549
/ (o->height ());
550
zooms.at (out).yTranslate /= (1.0f - zooms.at (out).newZoom);
551
constrainZoomTranslate ();
552
553
if (instant)
554
{
555
zooms.at (out).realXTranslate = zooms.at (out).xTranslate;
556
zooms.at (out).realYTranslate = zooms.at (out).yTranslate;
557
zooms.at (out).updateActualTranslates ();
558
}
559
560
if (optionGetZoomMode () == EzoomOptions::ZoomModePanArea)
561
restrainCursor (out);
562
}
563
564
/* Moves the zoom area to the window specified */
565
void
566
EZoomScreen::areaToWindow (CompWindow *w)
567
{
568
int left = w->serverX () - w->border ().left;
569
int width = w->width () + w->border ().left + w->border ().right;
570
int top = w->serverY () - w->border ().top;
571
int height = w->height () + w->border ().top + w->border ().bottom;
572
573
setZoomArea (left, top, width, height, false);
574
}
575
576
/* Pans the zoomed area vertically/horizontally by * value * zs->panFactor
577
* TODO: Fix output. */
578
void
579
EZoomScreen::panZoom (int xvalue, int yvalue)
580
{
581
unsigned int out;
582
583
for (out = 0; out < zooms.size (); out++)
584
{
585
zooms.at (out).xTranslate +=
586
optionGetPanFactor () * xvalue *
587
zooms.at (out).currentZoom;
588
zooms.at (out).yTranslate +=
589
optionGetPanFactor () * yvalue *
590
zooms.at (out).currentZoom;
591
}
592
593
constrainZoomTranslate ();
594
}
595
596
/* Enables polling of mouse position, and refreshes currently
597
* stored values.
598
*/
599
void
600
EZoomScreen::enableMousePolling ()
601
{
602
pollHandle.start ();
603
lastChange = time(NULL);
604
mouse = MousePoller::getCurrentPosition ();
605
}
606
607
/* Sets the zoom (or scale) level.
608
* Cleans up if we are suddenly zoomed out.
609
*/
610
void
611
EZoomScreen::setScale (int out, float value)
612
{
613
if (zooms.at (out).locked)
614
return;
615
616
if (value >= 1.0f)
617
value = 1.0f;
618
else
619
{
620
if (!pollHandle.active ())
621
enableMousePolling ();
622
grabbed |= (1 << zooms.at (out).output);
623
cursorZoomActive (out);
624
}
625
626
if (value == 1.0f)
627
{
628
zooms.at (out).xTranslate = 0.0f;
629
zooms.at (out).yTranslate = 0.0f;
630
cursorZoomInactive ();
631
}
632
633
if (value < optionGetMinimumZoom ())
634
value = optionGetMinimumZoom ();
635
636
zooms.at (out).newZoom = value;
637
cScreen->damageScreen();
638
}
639
640
/* Sets the zoom factor to the bigger of the two floats supplied.
641
* Convenience function for setting the scale factor for an area.
642
*/
643
static inline void
644
setScaleBigger (int out, float x, float y)
645
{
646
ZOOM_SCREEN (screen);
647
zs->setScale (out, x > y ? x : y);
648
}
649
650
/* Mouse code...
651
* This takes care of keeping the mouse in sync with the zoomed area and
652
* vice versa.
653
* See heading for description.
654
*/
655
656
/* Syncs the center, based on translations, back to the mouse.
657
* This should be called when doing non-IR zooming and moving the zoom
658
* area based on events other than mouse movement.
659
*/
660
void
661
EZoomScreen::syncCenterToMouse ()
662
{
663
int x, y;
664
int out;
665
CompOutput *o;
666
667
out = screen->outputDeviceForPoint (mouse.x (), mouse.y ());
668
o = &screen->outputDevs ().at (out);
669
670
if (!isInMovement (out))
671
return;
672
673
x = (int) ((zooms.at (out).realXTranslate * o->width ()) +
674
(o->width () / 2) + o->x1 ());
675
y = (int) ((zooms.at (out).realYTranslate * o->height ()) +
676
(o->height () / 2) + o->y1 ());
677
678
if ((x != mouse.x () || y != mouse.y ())
679
&& grabbed && zooms.at (out).newZoom != 1.0f)
680
{
681
screen->warpPointer (x - pointerX , y - pointerY );
682
mouse.setX (x);
683
mouse.setY (y);
684
}
685
}
686
687
/* Convert the point X,Y to where it would be when zoomed. */
688
void
689
EZoomScreen::convertToZoomed (int out,
690
int x,
691
int y,
692
int *resultX,
693
int *resultY)
694
{
695
CompOutput *o;
696
697
if (!outputIsZoomArea (out))
698
{
699
*resultX = x;
700
*resultY = y;
701
}
702
703
o = &screen->outputDevs ()[out];
704
ZoomArea &za = zooms.at (out);
705
706
x -= o->x1 ();
707
y -= o->y1 ();
708
*resultX = x - (za.realXTranslate *
709
(1.0f - za.currentZoom) * o->width ()) - o->width () / 2;
710
*resultX /= za.currentZoom;
711
*resultX += o->width () / 2;
712
*resultX += o->x1 ();
713
*resultY = y - (za.realYTranslate *
714
(1.0f - za.currentZoom) * o->height ()) - o->height ()/ 2;
715
*resultY /= za.currentZoom;
716
*resultY += o->height ()/ 2;
717
*resultY += o->y1 ();
718
}
719
720
/* Same but use targeted translation, not real */
721
void
722
EZoomScreen::convertToZoomedTarget (int out,
723
int x,
724
int y,
725
int *resultX,
726
int *resultY)
727
{
728
CompOutput *o = &screen->outputDevs ().at (out);
729
730
if (!outputIsZoomArea (out))
731
{
732
*resultX = x;
733
*resultY = y;
734
}
735
736
ZoomArea &za = zooms.at (out);
737
738
x -= o->x1 ();
739
y -= o->y1 ();
740
*resultX = x - (za.xTranslate *
741
(1.0f - za.newZoom) * o->width ()) - o->width () / 2;
742
*resultX /= za.newZoom;
743
*resultX += o->width () / 2;
744
*resultX += o->x1 ();
745
*resultY = y - (za.yTranslate *
746
(1.0f - za.newZoom) * o->height ()) - o->height ()/2;
747
*resultY /= za.newZoom;
748
*resultY += o->height () / 2;
749
*resultY += o->y1 ();
750
}
751
752
/* Make sure the given point + margin is visible;
753
* Translate to make it visible if necessary.
754
* Returns false if the point isn't on a actively zoomed head
755
* or the area is locked. */
756
bool
757
EZoomScreen::ensureVisibility (int x, int y, int margin)
758
{
759
int zoomX, zoomY;
760
int out;
761
CompOutput *o;
762
763
out = screen->outputDeviceForPoint (x, y);
764
if (!isActive (out))
765
return false;
766
767
o = &screen->outputDevs ().at (out);
768
convertToZoomedTarget (out, x, y, &zoomX, &zoomY);
769
ZoomArea &za = zooms.at (out);
770
if (za.locked)
771
return false;
772
773
#define FACTOR (za.newZoom / (1.0f - za.newZoom))
774
if (zoomX + margin > o->x2 ())
775
za.xTranslate +=
776
(FACTOR * (float) (zoomX + margin - o->x2 ())) /
777
(float) o->width ();
778
else if (zoomX - margin < o->x1 ())
779
za.xTranslate +=
780
(FACTOR * (float) (zoomX - margin - o->x1 ())) /
781
(float) o->width ();
782
783
if (zoomY + margin > o->y2 ())
784
za.yTranslate +=
785
(FACTOR * (float) (zoomY + margin - o->y2 ())) /
786
(float) o->height ();
787
else if (zoomY - margin < o->y1 ())
788
za.yTranslate +=
789
(FACTOR * (float) (zoomY - margin - o->y1 ())) /
790
(float) o->height ();
791
#undef FACTOR
792
constrainZoomTranslate ();
793
return true;
794
}
795
796
/* Attempt to ensure the visibility of an area defined by x1/y1 and x2/y2.
797
* See ensureVisibility () for details.
798
*
799
* This attempts to find the translations that leaves the biggest part of
800
* the area visible.
801
*
802
* gravity defines what part of the window that should get
803
* priority if it isn't possible to fit all of it.
804
*/
805
void
806
EZoomScreen::ensureVisibilityArea (int x1,
807
int y1,
808
int x2,
809
int y2,
810
int margin,
811
ZoomGravity gravity)
812
{
813
int targetX, targetY, targetW, targetH;
814
int out;
815
CompOutput *o;
816
817
out = screen->outputDeviceForPoint (x1 + (x2-x1/2), y1 + (y2-y1/2));
818
o = &screen->outputDevs ().at (out);
819
820
#define WIDTHOK (float)(x2-x1) / (float)o->width () < zooms.at (out).newZoom
821
#define HEIGHTOK (float)(y2-y1) / (float)o->height () < zooms.at (out).newZoom
822
823
if (WIDTHOK &&
824
HEIGHTOK) {
825
ensureVisibility (x1, y1, margin);
826
ensureVisibility (x2, y2, margin);
827
return;
828
}
829
830
switch (gravity)
831
{
832
case NORTHWEST:
833
targetX = x1;
834
targetY = y1;
835
if (WIDTHOK)
836
targetW = x2 - x1;
837
else
838
targetW = o->width () * zooms.at (out).newZoom;
839
if (HEIGHTOK)
840
targetH = y2 - y1;
841
else
842
targetH = o->height () * zooms.at (out).newZoom;
843
break;
844
case NORTHEAST:
845
targetY = y1;
846
if (WIDTHOK)
847
{
848
targetX = x1;
849
targetW = x2-x1;
850
}
851
else
852
{
853
targetX = x2 - o->width () * zooms.at (out).newZoom;
854
targetW = o->width () * zooms.at (out).newZoom;
855
}
856
857
if (HEIGHTOK)
858
targetH = y2-y1;
859
else
860
targetH = o->height () * zooms.at (out).newZoom;
861
break;
862
case SOUTHWEST:
863
targetX = x1;
864
if (WIDTHOK)
865
targetW = x2-x1;
866
else
867
targetW = o->width () * zooms.at (out).newZoom;
868
if (HEIGHTOK)
869
{
870
targetY = y1;
871
targetH = y2-y1;
872
}
873
else
874
{
875
targetY = y2 - (o->width () * zooms.at (out).newZoom);
876
targetH = o->width () * zooms.at (out).newZoom;
877
}
878
break;
879
case SOUTHEAST:
880
if (WIDTHOK)
881
{
882
targetX = x1;
883
targetW = x2-x1;
884
}
885
else
886
{
887
targetW = o->width () * zooms.at (out).newZoom;
888
targetX = x2 - targetW;
889
}
890
891
if (HEIGHTOK)
892
{
893
targetY = y1;
894
targetH = y2 - y1;
895
}
896
else
897
{
898
targetH = o->height () * zooms.at (out).newZoom;
899
targetY = y2 - targetH;
900
}
901
break;
902
case CENTER:
903
default:
904
setCenter (x1 + (x2 - x1 / 2), y1 + (y2 - y1 / 2), false);
905
return;
906
break;
907
}
908
909
setZoomArea (targetX, targetY, targetW, targetH, false);
910
return ;
911
}
912
913
/* Ensures that the cursor is visible on the given head.
914
* Note that we check if currentZoom is 1.0f, because that often means that
915
* mouseX and mouseY is not up-to-date (since the polling timer just
916
* started).
917
*/
918
void
919
EZoomScreen::restrainCursor (int out)
920
{
921
int x1, y1, x2, y2, margin;
922
int diffX = 0, diffY = 0;
923
int north, south, east, west;
924
float z;
925
CompOutput *o = &screen->outputDevs ().at (out);
926
927
z = zooms.at (out).newZoom;
928
margin = optionGetRestrainMargin ();
929
north = distanceToEdge (out, NORTH);
930
south = distanceToEdge (out, SOUTH);
931
east = distanceToEdge (out, EAST);
932
west = distanceToEdge (out, WEST);
933
934
if (zooms.at (out).currentZoom == 1.0f)
935
{
936
lastChange = time(NULL);
937
mouse = MousePoller::getCurrentPosition ();
938
}
939
940
convertToZoomedTarget (out, mouse.x () - cursor.hotX,
941
mouse.y () - cursor.hotY, &x1, &y1);
942
convertToZoomedTarget
943
(out,
944
mouse.x () - cursor.hotX + cursor.width,
945
mouse.y () - cursor.hotY + cursor.height,
946
&x2, &y2);
947
948
if ((x2 - x1 > o->x2 () - o->x1 ()) ||
949
(y2 - y1 > o->y2 () - o->y1 ()))
950
return;
951
if (x2 > o->x2 () - margin && east > 0)
952
diffX = x2 - o->x2 () + margin;
953
else if (x1 < o->x1 () + margin && west > 0)
954
diffX = x1 - o->x1 () - margin;
955
956
if (y2 > o->y2 () - margin && south > 0)
957
diffY = y2 - o->y2 () + margin;
958
else if (y1 < o->y1 () + margin && north > 0)
959
diffY = y1 - o->y1 () - margin;
960
961
if (abs(diffX)*z > 0 || abs(diffY)*z > 0)
962
screen->warpPointer ((int) (mouse.x () - pointerX) -
963
(int) ((float)diffX * z),
964
(int) (mouse.y () - pointerY) -
965
(int) ((float)diffY * z));
966
}
967
968
/* Check if the cursor is still visible.
969
* We also make sure to activate/deactivate cursor scaling here
970
* so we turn on/off the pointer if it moves from one head to another.
971
* FIXME: Detect an actual output change instead of spamming.
972
* FIXME: The second ensureVisibility (sync with restrain).
973
*/
974
void
975
EZoomScreen::cursorMoved ()
976
{
977
int out;
978
979
out = screen->outputDeviceForPoint (mouse.x (), mouse.y ());
980
if (isActive (out))
981
{
982
if (optionGetRestrainMouse ())
983
restrainCursor (out);
984
985
if (optionGetZoomMode () == EzoomOptions::ZoomModePanArea)
986
{
987
ensureVisibilityArea (mouse.x () - cursor.hotX,
988
mouse.y () - cursor.hotY,
989
mouse.x () + cursor.width -
990
cursor.hotX,
991
mouse.y () + cursor.height -
992
cursor.hotY,
993
optionGetRestrainMargin (),
994
NORTHWEST);
995
}
996
997
cursorZoomActive (out);
998
}
999
else
1000
{
1001
cursorZoomInactive ();
1002
}
1003
}
1004
1005
/* Update the mouse position.
1006
* Based on the zoom engine in use, we will have to move the zoom area.
1007
* This might have to be added to a timer.
1008
*/
1009
void
1010
EZoomScreen::updateMousePosition (const CompPoint &p)
1011
{
1012
int out;
1013
mouse.setX (p.x ());
1014
mouse.setY (p.y ());
1015
out = screen->outputDeviceForPoint (mouse.x (), mouse.y ());
1016
lastChange = time(NULL);
1017
if (optionGetZoomMode () == EzoomOptions::ZoomModeSyncMouse &&
1018
!isInMovement (out))
1019
setCenter (mouse.x (), mouse.y (), true);
1020
cursorMoved ();
1021
cScreen->damageScreen ();
1022
}
1023
1024
/* Timeout handler to poll the mouse. Returns false (and thereby does not
1025
* get re-added to the queue) when zoom is not active. */
1026
void
1027
EZoomScreen::updateMouseInterval (const CompPoint &p)
1028
{
1029
updateMousePosition (p);
1030
1031
if (!grabbed)
1032
{
1033
cursorMoved ();
1034
if (pollHandle.active ())
1035
pollHandle.stop ();
1036
}
1037
}
1038
1039
/* Free a cursor */
1040
void
1041
EZoomScreen::freeCursor (CursorTexture * cursor)
1042
{
1043
if (!cursor->isSet)
1044
return;
1045
1046
cursor->isSet = false;
1047
glDeleteTextures (1, &cursor->texture);
1048
cursor->texture = 0;
1049
}
1050
1051
/* Translate into place and draw the scaled cursor. */
1052
void
1053
EZoomScreen::drawCursor (CompOutput *output,
1054
const GLMatrix &transform)
1055
{
1056
int out = output->id ();
1057
1058
if (cursor.isSet)
1059
{
1060
GLMatrix sTransform = transform;
1061
float scaleFactor;
1062
int ax, ay, x, y;
1063
1064
/*
1065
* XXX: expo knows how to handle mouse when zoomed, so we back off
1066
* when expo is active.
1067
*/
1068
if (screen->grabExist ( "expo"))
1069
{
1070
cursorZoomInactive ();
1071
return;
1072
}
1073
1074
sTransform.toScreenSpace (output, -DEFAULT_Z_CAMERA);
1075
convertToZoomed (out, mouse.x (), mouse.y (), &ax, &ay);
1076
glPushMatrix ();
1077
glLoadMatrixf (sTransform.getMatrix ());
1078
glTranslatef ((float) ax, (float) ay, 0.0f);
1079
if (optionGetScaleMouseDynamic ())
1080
scaleFactor = 1.0f / zooms.at (out).currentZoom;
1081
else
1082
scaleFactor = 1.0f / optionGetScaleMouseStatic ();
1083
glScalef (scaleFactor,
1084
scaleFactor,
1085
1.0f);
1086
x = -cursor.hotX;
1087
y = -cursor.hotY;
1088
1089
glEnable (GL_BLEND);
1090
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, cursor.texture);
1091
glEnable (GL_TEXTURE_RECTANGLE_ARB);
1092
1093
glBegin (GL_QUADS);
1094
glTexCoord2d (0, 0);
1095
glVertex2f (x, y);
1096
glTexCoord2d (0, cursor.height);
1097
glVertex2f (x, y + cursor.height);
1098
glTexCoord2d (cursor.width, cursor.height);
1099
glVertex2f (x + cursor.width, y + cursor.height);
1100
glTexCoord2d (cursor.width, 0);
1101
glVertex2f (x + cursor.width, y);
1102
glEnd ();
1103
glDisable (GL_BLEND);
1104
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, 0);
1105
glDisable (GL_TEXTURE_RECTANGLE_ARB);
1106
glPopMatrix ();
1107
}
1108
}
1109
1110
/* Create (if necessary) a texture to store the cursor,
1111
* fetch the cursor with XFixes. Store it. */
1112
void
1113
EZoomScreen::updateCursor (CursorTexture * cursor)
1114
{
1115
unsigned char *pixels;
1116
int i;
1117
Display *dpy = screen->dpy ();
1118
1119
if (!cursor->isSet)
1120
{
1121
cursor->isSet = true;
1122
cursor->screen = screen;
1123
glEnable (GL_TEXTURE_RECTANGLE_ARB);
1124
glGenTextures (1, &cursor->texture);
1125
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, cursor->texture);
1126
1127
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB,
1128
GL_TEXTURE_WRAP_S, GL_CLAMP);
1129
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB,
1130
GL_TEXTURE_WRAP_T, GL_CLAMP);
1131
} else {
1132
glEnable (GL_TEXTURE_RECTANGLE_ARB);
1133
}
1134
1135
XFixesCursorImage *ci = XFixesGetCursorImage (dpy);
1136
1137
if (ci)
1138
{
1139
cursor->width = ci->width;
1140
cursor->height = ci->height;
1141
cursor->hotX = ci->xhot;
1142
cursor->hotY = ci->yhot;
1143
pixels = (unsigned char *) malloc (ci->width * ci->height * 4);
1144
1145
if (!pixels)
1146
{
1147
XFree (ci);
1148
return;
1149
}
1150
1151
for (i = 0; i < ci->width * ci->height; i++)
1152
{
1153
unsigned long pix = ci->pixels[i];
1154
pixels[i * 4] = pix & 0xff;
1155
pixels[(i * 4) + 1] = (pix >> 8) & 0xff;
1156
pixels[(i * 4) + 2] = (pix >> 16) & 0xff;
1157
pixels[(i * 4) + 3] = (pix >> 24) & 0xff;
1158
}
1159
1160
XFree (ci);
1161
}
1162
else
1163
{
1164
/* Fallback R: 255 G: 255 B: 255 A: 255
1165
* FIXME: Draw a cairo mouse cursor */
1166
1167
cursor->width = 1;
1168
cursor->height = 1;
1169
cursor->hotX = 0;
1170
cursor->hotY = 0;
1171
pixels = (unsigned char *) malloc (cursor->width * cursor->height * 4);
1172
1173
if (!pixels)
1174
return;
1175
1176
for (i = 0; i < cursor->width * cursor->height; i++)
1177
{
1178
unsigned long pix = 0x00ffffff;
1179
pixels[i * 4] = pix & 0xff;
1180
pixels[(i * 4) + 1] = (pix >> 8) & 0xff;
1181
pixels[(i * 4) + 2] = (pix >> 16) & 0xff;
1182
pixels[(i * 4) + 3] = (pix >> 24) & 0xff;
1183
}
1184
1185
compLogMessage ("ezoom", CompLogLevelWarn, "unable to get system cursor image!");
1186
}
1187
1188
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, cursor->texture);
1189
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, cursor->width,
1190
cursor->height, 0, GL_BGRA, GL_UNSIGNED_BYTE, pixels);
1191
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, 0);
1192
glDisable (GL_TEXTURE_RECTANGLE_ARB);
1193
1194
free (pixels);
1195
}
1196
1197
/* We are no longer zooming the cursor, so display it. */
1198
void
1199
EZoomScreen::cursorZoomInactive ()
1200
{
1201
if (!fixesSupported)
1202
return;
1203
1204
if (cursorInfoSelected)
1205
{
1206
cursorInfoSelected = false;
1207
XFixesSelectCursorInput (screen->dpy (), screen->root (), 0);
1208
}
1209
1210
if (cursor.isSet)
1211
{
1212
freeCursor (&cursor);
1213
}
1214
1215
if (cursorHidden)
1216
{
1217
cursorHidden = false;
1218
XFixesShowCursor (screen->dpy (), screen->root ());
1219
}
1220
}
1221
1222
/* Cursor zoom is active: We need to hide the original,
1223
* register for Cursor notifies and display the new one.
1224
* This can be called multiple times, not just on initial
1225
* activation.
1226
*/
1227
void
1228
EZoomScreen::cursorZoomActive (int out)
1229
{
1230
if (!fixesSupported)
1231
return;
1232
1233
/* Force cursor hiding and mouse panning if this output is locked
1234
* and cursor hiding is not enabled and we are syncing the mouse
1235
*/
1236
1237
if (!optionGetScaleMouse () &&
1238
(optionGetZoomMode () == EzoomOptions::ZoomModeSyncMouse &&
1239
optionGetHideOriginalMouse () &&
1240
!zooms.at (out).locked))
1241
return;
1242
1243
if (!cursorInfoSelected)
1244
{
1245
cursorInfoSelected = true;
1246
XFixesSelectCursorInput (screen->dpy (), screen->root (),
1247
XFixesDisplayCursorNotifyMask);
1248
updateCursor (&cursor);
1249
}
1250
if (canHideCursor && !cursorHidden &&
1251
(optionGetHideOriginalMouse () ||
1252
zooms.at (out).locked))
1253
{
1254
cursorHidden = true;
1255
XFixesHideCursor (screen->dpy (), screen->root ());
1256
}
1257
}
1258
1259
/* Set the zoom area
1260
* This is an interface for scripting.
1261
* int32:x1: left x coordinate
1262
* int32:y1: top y coordinate
1263
* int32:x2: right x
1264
* int32:y2: bottom y
1265
* x2 and y2 can be omitted to assume x1==x2+1 y1==y2+1
1266
* boolean:scale: True if we should modify the zoom level, false to just
1267
* adjust the movement/translation.
1268
* boolean:restrain: True to warp the pointer so it's visible.
1269
*/
1270
bool
1271
EZoomScreen::setZoomAreaAction (CompAction *action,
1272
CompAction::State state,
1273
CompOption::Vector options)
1274
{
1275
int x1, y1, x2, y2, out;
1276
bool scale, restrain;
1277
CompOutput *o;
1278
1279
x1 = CompOption::getIntOptionNamed (options, "x1", -1);
1280
y1 = CompOption::getIntOptionNamed (options, "y1", -1);
1281
x2 = CompOption::getIntOptionNamed (options, "x2", -1);
1282
y2 = CompOption::getIntOptionNamed (options, "y2", -1);
1283
scale = CompOption::getBoolOptionNamed (options, "scale", false);
1284
restrain = CompOption::getBoolOptionNamed (options, "restrain", false);
1285
1286
if (x1 < 0 || y1 < 0)
1287
return false;
1288
1289
if (x2 < 0)
1290
x2 = x1 + 1;
1291
1292
if (y2 < 0)
1293
y2 = y1 + 1;
1294
1295
out = screen->outputDeviceForPoint (x1, y1);
1296
#define WIDTH (x2 - x1)
1297
#define HEIGHT (y2 - y1)
1298
setZoomArea (x1, y1, WIDTH, HEIGHT, false);
1299
o = &screen->outputDevs (). at(out);
1300
if (scale && WIDTH && HEIGHT)
1301
setScaleBigger (out, (float) WIDTH / o->width (),
1302
(float) HEIGHT / o->height ());
1303
#undef WIDTH
1304
#undef HEIGHT
1305
if (restrain)
1306
restrainCursor (out);
1307
1308
toggleFunctions (true);
1309
1310
return true;
1311
}
1312
1313
/* Ensure visibility of an area defined by x1->x2/y1->y2
1314
* int:x1: left X coordinate
1315
* int:x2: right X Coordinate
1316
* int:y1: top Y coordinate
1317
* int:y2: bottom Y coordinate
1318
* bool:scale: zoom out if necessary to ensure visibility
1319
* bool:restrain: Restrain the mouse cursor
1320
* int:margin: The margin to use (default: 0)
1321
* if x2/y2 is omitted, it is ignored.
1322
*/
1323
bool
1324
EZoomScreen::ensureVisibilityAction (CompAction *action,
1325
CompAction::State state,
1326
CompOption::Vector options)
1327
{
1328
int x1, y1, x2, y2, margin, out;
1329
bool scale, restrain;
1330
CompOutput *o;
1331
1332
x1 = CompOption::getIntOptionNamed (options, "x1", -1);
1333
y1 = CompOption::getIntOptionNamed (options, "y1", -1);
1334
x2 = CompOption::getIntOptionNamed (options, "x2", -1);
1335
y2 = CompOption::getIntOptionNamed (options, "y2", -1);
1336
margin = CompOption::getBoolOptionNamed (options, "margin", 0);
1337
scale = CompOption::getBoolOptionNamed (options, "scale", false);
1338
restrain = CompOption::getBoolOptionNamed (options, "restrain", false);
1339
if (x1 < 0 || y1 < 0)
1340
return false;
1341
if (x2 < 0)
1342
y2 = y1 + 1;
1343
out = screen->outputDeviceForPoint (x1, y1);
1344
ensureVisibility (x1, y1, margin);
1345
if (x2 >= 0 && y2 >= 0)
1346
ensureVisibility (x2, y2, margin);
1347
o = &screen->outputDevs (). at(out);
1348
#define WIDTH (x2 - x1)
1349
#define HEIGHT (y2 - y1)
1350
if (scale && WIDTH && HEIGHT)
1351
setScaleBigger (out, (float) WIDTH / o->width (),
1352
(float) HEIGHT / o->height ());
1353
#undef WIDTH
1354
#undef HEIGHT
1355
if (restrain)
1356
restrainCursor (out);
1357
1358
toggleFunctions (true);
1359
1360
return true;
1361
}
1362
1363
/* Finished here */
1364
1365
bool
1366
EZoomScreen::zoomBoxActivate (CompAction *action,
1367
CompAction::State state,
1368
CompOption::Vector options)
1369
{
1370
grabIndex = screen->pushGrab (None, "ezoom");
1371
clickPos.setX (pointerX);
1372
clickPos.setY (pointerY);
1373
box.setGeometry (pointerX, pointerY, 0, 0);
1374
if (state & CompAction::StateInitButton)
1375
action->setState (action->state () | CompAction::StateTermButton);
1376
1377
toggleFunctions (true);
1378
1379
return true;
1380
}
1381
1382
bool
1383
EZoomScreen::zoomBoxDeactivate (CompAction *action,
1384
CompAction::State state,
1385
CompOption::Vector options)
1386
{
1387
if (grabIndex)
1388
{
1389
int out;
1390
int x, y, width, height;
1391
CompOutput *o;
1392
1393
screen->removeGrab (grabIndex, NULL);
1394
grabIndex = 0;
1395
1396
if (pointerX < clickPos.x ())
1397
{
1398
box.setX (pointerX);
1399
box.setWidth (clickPos.x () - pointerX);
1400
}
1401
else
1402
{
1403
box.setWidth (pointerX - clickPos.x ());
1404
}
1405
1406
if (pointerY < clickPos.y ())
1407
{
1408
box.setY (pointerY);
1409
box.setHeight (clickPos.y () - pointerY);
1410
}
1411
else
1412
{
1413
box.setHeight (pointerY - clickPos.y ());
1414
}
1415
1416
x = MIN (box.x1 (), box.x2 ());
1417
y = MIN (box.y1 (), box.y2 ());
1418
width = MAX (box.x1 (), box.x2 ()) - x;
1419
height = MAX (box.y1 (), box.y2 ()) - y;
1420
1421
CompWindow::Geometry outGeometry (x, y, width, height, 0);
1422
1423
out = screen->outputDeviceForGeometry (outGeometry);
1424
o = &screen->outputDevs (). at (out);
1425
setScaleBigger (out, (float) width/o->width (), (float)
1426
height/o->height ());
1427
setZoomArea (x,y,width,height,false);
1428
}
1429
1430
toggleFunctions (true);
1431
1432
return true;
1433
}
1434
1435
/* Zoom in to the area pointed to by the mouse.
1436
*/
1437
bool
1438
EZoomScreen::zoomIn (CompAction *action,
1439
CompAction::State state,
1440
CompOption::Vector options)
1441
{
1442
int out = screen->outputDeviceForPoint (pointerX, pointerY);
1443
1444
if (optionGetZoomMode () == EzoomOptions::ZoomModeSyncMouse &&
1445
!isInMovement (out))
1446
setCenter (pointerX, pointerY, true);
1447
1448
setScale (out,
1449
zooms.at (out).newZoom /
1450
optionGetZoomFactor ());
1451
1452
toggleFunctions (true);
1453
1454
return true;
1455
}
1456
1457
/* Locks down the current zoom area
1458
*/
1459
bool
1460
EZoomScreen::lockZoomAction (CompAction *action,
1461
CompAction::State state,
1462
CompOption::Vector options)
1463
{
1464
int out = screen->outputDeviceForPoint (pointerX, pointerY);
1465
zooms.at (out).locked = !zooms.at (out).locked;
1466
1467
return true;
1468
}
1469
1470
/* Zoom to a specific level.
1471
* target defines the target zoom level.
1472
* First set the scale level and mark the display as grabbed internally (to
1473
* catch the FocusIn event). Either target the focused window or the mouse,
1474
* depending on settings.
1475
* FIXME: A bit of a mess...
1476
*/
1477
bool
1478
EZoomScreen::zoomSpecific (CompAction *action,
1479
CompAction::State state,
1480
CompOption::Vector options,
1481
float target)
1482
{
1483
int x, y;
1484
int out = screen->outputDeviceForPoint (pointerX, pointerY);
1485
CompWindow *w;
1486
1487
if (target == 1.0f && zooms.at (out).newZoom == 1.0f)
1488
return false;
1489
if (screen->otherGrabExist (NULL))
1490
return false;
1491
1492
setScale (out, target);
1493
1494
w = screen->findWindow (screen->activeWindow ());
1495
if (optionGetSpecTargetFocus ()
1496
&& w)
1497
{
1498
areaToWindow (w);
1499
}
1500
else
1501
{
1502
x = CompOption::getIntOptionNamed (options, "x", 0);
1503
y = CompOption::getIntOptionNamed (options, "y", 0);
1504
setCenter (x, y, false);
1505
}
1506
1507
toggleFunctions (true);
1508
1509
return true;
1510
}
1511
1512
/* TODO: Add specific zoom boost::bind's */
1513
1514
/* Zooms to fit the active window to the screen without cutting
1515
* it off and targets it.
1516
*/
1517
bool
1518
EZoomScreen::zoomToWindow (CompAction *action,
1519
CompAction::State state,
1520
CompOption::Vector options)
1521
{
1522
int width, height, out;
1523
Window xid;
1524
CompWindow *w;
1525
CompOutput *o;
1526
1527
xid = CompOption::getIntOptionNamed (options, "window", 0);
1528
w = screen->findWindow (xid);
1529
if (!w)
1530
return true;
1531
width = w->width () + w->border ().left + w->border ().right;
1532
height = w->height () + w->border ().top + w->border ().bottom;
1533
out = screen->outputDeviceForGeometry (w->geometry ());
1534
o = &screen->outputDevs ().at (out);
1535
setScaleBigger (out, (float) width/o->width (),
1536
(float) height/o->height ());
1537
areaToWindow (w);
1538
toggleFunctions (true);
1539
1540
return true;
1541
}
1542
1543
bool
1544
EZoomScreen::zoomPan (CompAction *action,
1545
CompAction::State state,
1546
CompOption::Vector options,
1547
float horizAmount,
1548
float vertAmount)
1549
{
1550
panZoom (horizAmount, vertAmount);
1551
1552
return true;
1553
}
1554
1555
/* Centers the mouse based on zoom level and translation.
1556
*/
1557
bool
1558
EZoomScreen::zoomCenterMouse (CompAction *action,
1559
CompAction::State state,
1560
CompOption::Vector options)
1561
{
1562
int out;
1563
1564
1565
out = screen->outputDeviceForPoint (pointerX, pointerY);
1566
screen->warpPointer ((int) (screen->outputDevs ().at (out).width ()/2 +
1567
screen->outputDevs ().at (out).x1 () - pointerX)
1568
+ ((float) screen->outputDevs ().at (out).width () *
1569
-zooms.at (out).xtrans),
1570
(int) (screen->outputDevs ().at (out).height ()/2 +
1571
screen->outputDevs ().at (out).y1 () - pointerY)
1572
+ ((float) screen->outputDevs ().at (out).height () *
1573
zooms.at (out).ytrans));
1574
return true;
1575
}
1576
1577
/* Resize a window to fit the zoomed area.
1578
* This could probably do with some moving-stuff too.
1579
* IE: Move the zoom area afterwards. And ensure
1580
* the window isn't resized off-screen.
1581
*/
1582
bool
1583
EZoomScreen::zoomFitWindowToZoom (CompAction *action,
1584
CompAction::State state,
1585
CompOption::Vector options)
1586
{
1587
int out;
1588
unsigned int mask = CWWidth | CWHeight;
1589
XWindowChanges xwc;
1590
CompWindow *w;
1591
1592
w = screen->findWindow (CompOption::getIntOptionNamed (
1593
options, "window", 0));
1594
if (!w)
1595
return true;
1596
1597
out = screen->outputDeviceForGeometry (w->geometry ());
1598
xwc.x = w->serverX ();
1599
xwc.y = w->serverY ();
1600
xwc.width = (int) (screen->outputDevs ().at (out).width () *
1601
zooms.at (out).currentZoom -
1602
(int) ((w->border ().left + w->border ().right)));
1603
xwc.height = (int) (screen->outputDevs ().at (out).height () *
1604
zooms.at (out).currentZoom -
1605
(int) ((w->border ().top + w->border ().bottom)));
1606
1607
w->constrainNewWindowSize (xwc.width,
1608
xwc.height,
1609
&xwc.width,
1610
&xwc.height);
1611
1612
1613
if (xwc.width == w->serverWidth ())
1614
mask &= ~CWWidth;
1615
1616
if (xwc.height == w->serverHeight ())
1617
mask &= ~CWHeight;
1618
1619
if (w->mapNum () && (mask & (CWWidth | CWHeight)))
1620
w->sendSyncRequest ();
1621
1622
w->configureXWindow (mask, &xwc);
1623
1624
toggleFunctions (true);
1625
1626
return true;
1627
}
1628
1629
bool
1630
EZoomScreen::initiate (CompAction *action,
1631
CompAction::State state,
1632
CompOption::Vector options)
1633
{
1634
zoomIn (action, state, options);
1635
1636
if (state & CompAction::StateInitKey)
1637
action->setState (action->state () | CompAction::StateTermKey);
1638
1639
if (state & CompAction::StateInitButton)
1640
action->setState (action->state () | CompAction::StateTermButton);
1641
1642
toggleFunctions (true);
1643
1644
return true;
1645
}
1646
1647
bool
1648
EZoomScreen::zoomOut (CompAction *action,
1649
CompAction::State state,
1650
CompOption::Vector options)
1651
{
1652
int out = screen->outputDeviceForPoint (pointerX, pointerY);
1653
1654
setScale (out,
1655
zooms.at (out).newZoom *
1656
optionGetZoomFactor ());
1657
1658
toggleFunctions (true);
1659
1660
return true;
1661
}
1662
1663
bool
1664
EZoomScreen::terminate (CompAction *action,
1665
CompAction::State state,
1666
CompOption::Vector options)
1667
{
1668
int out;
1669
1670
out = screen->outputDeviceForPoint (pointerX, pointerY);
1671
1672
if (grabbed)
1673
{
1674
zooms.at (out).newZoom = 1.0f;
1675
cScreen->damageScreen ();
1676
}
1677
1678
toggleFunctions (true);
1679
1680
action->setState (action->state () & ~(CompAction::StateTermKey |
1681
CompAction::StateTermButton));
1682
return false;
1683
1684
}
1685
1686
/* Focus-track related event handling.
1687
* The lastMapped is a hack to ensure that newly mapped windows are
1688
* caught even if the grab that (possibly) triggered them affected
1689
* the mode. Windows created by a key binding (like creating a terminal
1690
* on a key binding) tends to trigger FocusIn events with mode other than
1691
* Normal. This works around this problem.
1692
* FIXME: Cleanup.
1693
* TODO: Avoid maximized windows.
1694
*/
1695
void
1696
EZoomScreen::focusTrack (XEvent *event)
1697
{
1698
int out;
1699
static Window lastMapped = 0;
1700
1701
CompWindow *w;
1702
1703
if (event->type == MapNotify)
1704
{
1705
lastMapped = event->xmap.window;
1706
return;
1707
}
1708
else if (event->type != FocusIn)
1709
return;
1710
1711
if ((event->xfocus.mode != NotifyNormal)
1712
&& (lastMapped != event->xfocus.window))
1713
return;
1714
1715
lastMapped = 0;
1716
w = screen->findWindow (event->xfocus.window);
1717
if (w == NULL || w->id () == screen->activeWindow ())
1718
return;
1719
1720
if (time(NULL) - lastChange < optionGetFollowFocusDelay () ||
1721
!optionGetFollowFocus ())
1722
return;
1723
1724
out = screen->outputDeviceForGeometry (w->geometry ());
1725
if (!isActive (out) &&
1726
!optionGetAlwaysFocusFitWindow ())
1727
return;
1728
if (optionGetFocusFitWindow ())
1729
{
1730
int width = w->width () + w->border ().left + w->border ().right;
1731
int height = w->height () + w->border ().top + w->border ().bottom;
1732
float scale = MAX ((float) width/screen->outputDevs ().at(out).width (),
1733
(float) height/screen->outputDevs ().at (out).height ());
1734
if (scale > optionGetAutoscaleMin ())
1735
setScale (out, scale);
1736
}
1737
1738
areaToWindow (w);
1739
1740
toggleFunctions (true);
1741
}
1742
1743
1744
/* Event handler. Pass focus-related events on and handle XFixes events. */
1745
void
1746
EZoomScreen::handleEvent (XEvent *event)
1747
{
1748
XMotionEvent *mev;
1749
1750
switch (event->type) {
1751
case MotionNotify:
1752
mev = (XMotionEvent *) event;
1753
if (grabIndex)
1754
{
1755
if (pointerX < clickPos.x ())
1756
{
1757
box.setX (pointerX);
1758
box.setWidth (clickPos.x () - pointerX);
1759
}
1760
else
1761
{
1762
box.setWidth (pointerX - clickPos.x ());
1763
}
1764
1765
if (pointerY < clickPos.y ())
1766
{
1767
box.setY (pointerY);
1768
box.setHeight (clickPos.y () - pointerY);
1769
}
1770
else
1771
{
1772
box.setHeight (pointerY - clickPos.y ());
1773
}
1774
cScreen->damageScreen ();
1775
}
1776
break;
1777
1778
case FocusIn:
1779
case MapNotify:
1780
focusTrack (event);
1781
break;
1782
default:
1783
if (event->type == fixesEventBase + XFixesCursorNotify)
1784
{
1785
//XFixesCursorNotifyEvent *cev = (XFixesCursorNotifyEvent *)
1786
//event;
1787
if (cursor.isSet)
1788
updateCursor (&cursor);
1789
}
1790
break;
1791
}
1792
1793
screen->handleEvent (event);
1794
}
1795
1796
/* TODO: Use this ctor carefully */
1797
1798
EZoomScreen::CursorTexture::CursorTexture () :
1799
isSet (false)
1800
{
1801
}
1802
1803
void
1804
EZoomScreen::postLoad ()
1805
{
1806
const CompPoint &m = pollHandle.getCurrentPosition ();
1807
int out = screen->outputDeviceForPoint (m.x (), m.y ());
1808
1809
if (!grabbed)
1810
return;
1811
1812
toggleFunctions (true);
1813
1814
if (!pollHandle.active ())
1815
enableMousePolling ();
1816
1817
foreach (ZoomArea &za, zooms)
1818
{
1819
grabbed |= (1 << za.output);
1820
}
1821
1822
cursorZoomActive (out);
1823
updateCursor (&cursor);
1824
1825
cScreen->damageScreen ();
1826
1827
}
1828
1829
EZoomScreen::EZoomScreen (CompScreen *screen) :
1830
PluginClassHandler <EZoomScreen, CompScreen> (screen),
1831
PluginStateWriter <EZoomScreen> (this, screen->root ()),
1832
cScreen (CompositeScreen::get (screen)),
1833
gScreen (GLScreen::get (screen)),
1834
grabbed (0),
1835
grabIndex (0),
1836
lastChange (0),
1837
cursorInfoSelected (false),
1838
cursorHidden (false)
1839
{
1840
ScreenInterface::setHandler (screen, false);
1841
CompositeScreenInterface::setHandler (cScreen, false);
1842
GLScreenInterface::setHandler (gScreen, false);
1843
1844
int major, minor;
1845
unsigned int n;
1846
fixesSupported =
1847
XFixesQueryExtension(screen->dpy (),
1848
&fixesEventBase,
1849
&fixesErrorBase);
1850
1851
XFixesQueryVersion (screen->dpy (), &major, &minor);
1852
1853
if (major >= 4)
1854
canHideCursor = true;
1855
else
1856
canHideCursor = false;
1857
1858
n = screen->outputDevs ().size ();
1859
1860
for (unsigned int i = 0; i < n; i++)
1861
{
1862
/* zs->grabbed is a mask ... Thus this limit */
1863
if (i > sizeof (long int) * 8)
1864
break;
1865
ZoomArea za (i);
1866
zooms.push_back (za);
1867
}
1868
1869
pollHandle.setCallback (boost::bind (
1870
&EZoomScreen::updateMouseInterval, this, _1));
1871
1872
optionSetZoomInButtonInitiate (boost::bind (&EZoomScreen::zoomIn, this, _1,
1873
_2, _3));
1874
optionSetZoomOutButtonInitiate (boost::bind (&EZoomScreen::zoomOut, this, _1,
1875
_2, _3));
1876
optionSetZoomInKeyInitiate (boost::bind (&EZoomScreen::zoomIn, this, _1,
1877
_2, _3));
1878
optionSetZoomOutKeyInitiate (boost::bind (&EZoomScreen::zoomOut, this, _1,
1879
_2, _3));
1880
1881
optionSetZoomSpecific1KeyInitiate (boost::bind (&EZoomScreen::zoomSpecific,
1882
this, _1, _2, _3,
1883
optionGetZoomSpec1 ()));
1884
optionSetZoomSpecific2KeyInitiate (boost::bind (&EZoomScreen::zoomSpecific,
1885
this, _1, _2, _3,
1886
optionGetZoomSpec2 ()));
1887
optionSetZoomSpecific3KeyInitiate (boost::bind (&EZoomScreen::zoomSpecific,
1888
this, _1, _2, _3,
1889
optionGetZoomSpec3 ()));
1890
1891
optionSetPanLeftKeyInitiate (boost::bind (&EZoomScreen::zoomPan, this, _1,
1892
_2, _3, -1, 0));
1893
optionSetPanRightKeyInitiate (boost::bind (&EZoomScreen::zoomPan, this, _1,
1894
_2, _3, 1, 0));
1895
optionSetPanUpKeyInitiate (boost::bind (&EZoomScreen::zoomPan, this, _1, _2,
1896
_3, 0, -1));
1897
optionSetPanDownKeyInitiate (boost::bind (&EZoomScreen::zoomPan, this, _1,
1898
_2, _3, 0, 1));
1899
1900
optionSetFitToWindowKeyInitiate (boost::bind (&EZoomScreen::zoomToWindow,
1901
this, _1, _2, _3));
1902
optionSetCenterMouseKeyInitiate (boost::bind (&EZoomScreen::zoomCenterMouse,
1903
this, _1, _2, _3));
1904
optionSetFitToZoomKeyInitiate (boost::bind (
1905
&EZoomScreen::zoomFitWindowToZoom, this,
1906
_1, _2, _3));
1907
1908
1909
optionSetLockZoomKeyInitiate (boost::bind (&EZoomScreen::lockZoomAction,
1910
this, _1, _2, _3));
1911
optionSetZoomBoxButtonInitiate (boost::bind (&EZoomScreen::zoomBoxActivate,
1912
this, _1, _2, _3));
1913
optionSetZoomBoxButtonTerminate (boost::bind (
1914
&EZoomScreen::zoomBoxDeactivate, this,
1915
_1, _2, _3));
1916
optionSetSetZoomAreaInitiate (boost::bind (
1917
&EZoomScreen::setZoomAreaAction, this,
1918
_1, _2, _3));
1919
optionSetEnsureVisibilityInitiate (boost::bind (
1920
&EZoomScreen::ensureVisibilityAction, this,
1921
_1, _2, _3));
1922
1923
}
1924
1925
EZoomScreen::~EZoomScreen ()
1926
{
1927
writeSerializedData ();
1928
1929
if (pollHandle.active ())
1930
pollHandle.stop ();
1931
1932
if (zooms.size ())
1933
zooms.clear ();
1934
1935
cScreen->damageScreen ();
1936
cursorZoomInactive ();
1937
}
1938
1939
bool
1940
ZoomPluginVTable::init ()
1941
{
1942
if (!CompPlugin::checkPluginABI ("core", CORE_ABIVERSION) ||
1943
!CompPlugin::checkPluginABI ("composite", COMPIZ_COMPOSITE_ABI) ||
1944
!CompPlugin::checkPluginABI ("opengl", COMPIZ_OPENGL_ABI) ||
1945
!CompPlugin::checkPluginABI ("mousepoll", COMPIZ_MOUSEPOLL_ABI))
1946
return false;
1947
1948
return true;
1949
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.1