/
lxqtpanel.cpp
1568 lines (1291 loc) · 50.4 KB
/
lxqtpanel.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* BEGIN_COMMON_COPYRIGHT_HEADER
* (c)LGPL2+
*
* LXQt - a lightweight, Qt based, desktop toolset
* https://lxqt.org
*
* Copyright: 2010-2011 Razor team
* Authors:
* Alexander Sokoloff <sokoloff.a@gmail.com>
*
* This program or library is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* END_COMMON_COPYRIGHT_HEADER */
#include "lxqtpanel.h"
#include "lxqtpanellimits.h"
#include "ilxqtpanelplugin.h"
#include "lxqtpanelapplication.h"
#include "lxqtpanellayout.h"
#include "config/configpaneldialog.h"
#include "popupmenu.h"
#include "plugin.h"
#include "panelpluginsmodel.h"
#include "windownotifier.h"
#include <LXQt/PluginInfo>
#include <QScreen>
#include <QWindow>
#include <QX11Info>
#include <QDebug>
#include <QString>
#include <QMenu>
#include <QMessageBox>
#include <QDropEvent>
#include <XdgIcon>
#include <XdgDirs>
#include <KWindowSystem/KWindowSystem>
#include <KWindowSystem/NETWM>
// Turn on this to show the time required to load each plugin during startup
// #define DEBUG_PLUGIN_LOADTIME
#ifdef DEBUG_PLUGIN_LOADTIME
#include <QElapsedTimer>
#endif
// Config keys and groups
#define CFG_KEY_SCREENNUM "desktop"
#define CFG_KEY_POSITION "position"
#define CFG_KEY_PANELSIZE "panelSize"
#define CFG_KEY_ICONSIZE "iconSize"
#define CFG_KEY_LINECNT "lineCount"
#define CFG_KEY_LENGTH "width"
#define CFG_KEY_PERCENT "width-percent"
#define CFG_KEY_ALIGNMENT "alignment"
#define CFG_KEY_FONTCOLOR "font-color"
#define CFG_KEY_BACKGROUNDCOLOR "background-color"
#define CFG_KEY_BACKGROUNDIMAGE "background-image"
#define CFG_KEY_OPACITY "opacity"
#define CFG_KEY_RESERVESPACE "reserve-space"
#define CFG_KEY_PLUGINS "plugins"
#define CFG_KEY_HIDABLE "hidable"
#define CFG_KEY_VISIBLE_MARGIN "visible-margin"
#define CFG_KEY_HIDE_ON_OVERLAP "hide-on-overlap"
#define CFG_KEY_ANIMATION "animation-duration"
#define CFG_KEY_SHOW_DELAY "show-delay"
#define CFG_KEY_LOCKPANEL "lockPanel"
/************************************************
Returns the Position by the string.
String is one of "Top", "Left", "Bottom", "Right", string is not case sensitive.
If the string is not correct, returns defaultValue.
************************************************/
ILXQtPanel::Position LXQtPanel::strToPosition(const QString& str, ILXQtPanel::Position defaultValue)
{
if (str.toUpper() == QLatin1String("TOP")) return LXQtPanel::PositionTop;
if (str.toUpper() == QLatin1String("LEFT")) return LXQtPanel::PositionLeft;
if (str.toUpper() == QLatin1String("RIGHT")) return LXQtPanel::PositionRight;
if (str.toUpper() == QLatin1String("BOTTOM")) return LXQtPanel::PositionBottom;
return defaultValue;
}
/************************************************
Return string representation of the position
************************************************/
QString LXQtPanel::positionToStr(ILXQtPanel::Position position)
{
switch (position)
{
case LXQtPanel::PositionTop:
return QStringLiteral("Top");
case LXQtPanel::PositionLeft:
return QStringLiteral("Left");
case LXQtPanel::PositionRight:
return QStringLiteral("Right");
case LXQtPanel::PositionBottom:
return QStringLiteral("Bottom");
}
return QString();
}
/************************************************
************************************************/
LXQtPanel::LXQtPanel(const QString &configGroup, LXQt::Settings *settings, QWidget *parent) :
QFrame(parent),
mSettings(settings),
mConfigGroup(configGroup),
mPlugins{nullptr},
mStandaloneWindows{new WindowNotifier},
mPanelSize(0),
mIconSize(0),
mLineCount(0),
mLength(0),
mAlignment(AlignmentLeft),
mPosition(ILXQtPanel::PositionBottom),
mScreenNum(0), //whatever (avoid conditional on uninitialized value)
mActualScreenNum(0),
mHidable(false),
mVisibleMargin(true),
mHideOnOverlap(false),
mHidden(false),
mAnimationTime(0),
mReserveSpace(true),
mAnimation(nullptr),
mLockPanel(false)
{
//You can find information about the flags and widget attributes in your
//Qt documentation or at https://doc.qt.io/qt-5/qt.html
//Qt::FramelessWindowHint = Produces a borderless window. The user cannot
//move or resize a borderless window via the window system. On X11, ...
//Qt::WindowStaysOnTopHint = Informs the window system that the window
//should stay on top of all other windows. Note that on ...
Qt::WindowFlags flags = Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint;
// NOTE: by PCMan:
// In Qt 4, the window is not activated if it has Qt::WA_X11NetWmWindowTypeDock.
// Since Qt 5, the default behaviour is changed. A window is always activated on mouse click.
// Please see the source code of Qt5: src/plugins/platforms/xcb/qxcbwindow.cpp.
// void QXcbWindow::handleButtonPressEvent(const xcb_button_press_event_t *event)
// This new behaviour caused lxqt bug #161 - Cannot minimize windows from panel 1 when two task managers are open
// Besides, this breaks minimizing or restoring windows when clicking on the taskbar buttons.
// To workaround this regression bug, we need to add this window flag here.
// However, since the panel gets no keyboard focus, this may decrease accessibility since
// it's not possible to use the panel with keyboards. We need to find a better solution later.
flags |= Qt::WindowDoesNotAcceptFocus;
setWindowFlags(flags);
//Adds _NET_WM_WINDOW_TYPE_DOCK to the window's _NET_WM_WINDOW_TYPE X11 window property. See https://standards.freedesktop.org/wm-spec/ for more details.
setAttribute(Qt::WA_X11NetWmWindowTypeDock);
//Enables tooltips for inactive windows.
setAttribute(Qt::WA_AlwaysShowToolTips);
//Indicates that the widget should have a translucent background, i.e., any non-opaque regions of the widgets will be translucent because the widget will have an alpha channel. Setting this ...
setAttribute(Qt::WA_TranslucentBackground);
//Allows data from drag and drop operations to be dropped onto the widget (see QWidget::setAcceptDrops()).
setAttribute(Qt::WA_AcceptDrops);
setWindowTitle(QStringLiteral("LXQt Panel"));
setObjectName(QStringLiteral("LXQtPanel %1").arg(configGroup));
//LXQtPanel (inherits QFrame) -> lav (QGridLayout) -> LXQtPanelWidget (QFrame) -> LXQtPanelLayout
LXQtPanelWidget = new QFrame(this);
LXQtPanelWidget->setObjectName(QStringLiteral("BackgroundWidget"));
QGridLayout* lav = new QGridLayout();
lav->setContentsMargins(0, 0, 0, 0);
setLayout(lav);
this->layout()->addWidget(LXQtPanelWidget);
mLayout = new LXQtPanelLayout(LXQtPanelWidget);
connect(mLayout, &LXQtPanelLayout::pluginMoved, this, &LXQtPanel::pluginMoved);
LXQtPanelWidget->setLayout(mLayout);
mLayout->setLineCount(mLineCount);
mDelaySave.setSingleShot(true);
mDelaySave.setInterval(SETTINGS_SAVE_DELAY);
connect(&mDelaySave, &QTimer::timeout, this, [this] { saveSettings(); } );
mHideTimer.setSingleShot(true);
mHideTimer.setInterval(PANEL_HIDE_DELAY);
connect(&mHideTimer, &QTimer::timeout, this, &LXQtPanel::hidePanelWork);
mShowDelayTimer.setSingleShot(true);
mShowDelayTimer.setInterval(PANEL_SHOW_DELAY);
connect(&mShowDelayTimer, &QTimer::timeout, this, [this] { showPanel(mAnimationTime > 0); });
// screen updates
connect(qApp, &QApplication::screenAdded, this, [this] (QScreen* newScreen) {
connect(newScreen, &QScreen::virtualGeometryChanged, this, &LXQtPanel::ensureVisible);
connect(newScreen, &QScreen::geometryChanged, this, &LXQtPanel::ensureVisible);
ensureVisible();
});
connect(qApp, &QApplication::screenRemoved, this, [this] (QScreen* oldScreen) {
disconnect(oldScreen, &QScreen::virtualGeometryChanged, this, &LXQtPanel::ensureVisible);
disconnect(oldScreen, &QScreen::geometryChanged, this, &LXQtPanel::ensureVisible);
// wait until the screen is really removed because it may contain the panel
QTimer::singleShot(0, this, &LXQtPanel::ensureVisible);
});
const auto screens = QApplication::screens();
for(const auto& screen : screens)
{
connect(screen, &QScreen::virtualGeometryChanged, this, &LXQtPanel::ensureVisible);
connect(screen, &QScreen::geometryChanged, this, &LXQtPanel::ensureVisible);
}
connect(LXQt::Settings::globalSettings(), &LXQt::GlobalSettings::settingsChanged, this, [this] { update(); } );
connect(lxqtApp, &LXQt::Application::themeChanged, this, &LXQtPanel::realign);
connect(mStandaloneWindows.data(), &WindowNotifier::firstShown, this, [this] { showPanel(true); });
connect(mStandaloneWindows.data(), &WindowNotifier::lastHidden, this, &LXQtPanel::hidePanel);
readSettings();
ensureVisible();
loadPlugins();
// NOTE: Some (X11) WMs may need the geometry to be set before QWidget::show().
setPanelGeometry();
show();
// show it the first time, despite setting
if (mHidable)
{
showPanel(false);
QTimer::singleShot(PANEL_HIDE_FIRST_TIME, this, SLOT(hidePanel()));
}
connect(KWindowSystem::self(), &KWindowSystem::windowAdded, this, [this] {
if (mHidable && mHideOnOverlap && !mHidden)
{
mShowDelayTimer.stop();
hidePanel();
}
});
connect(KWindowSystem::self(), &KWindowSystem::windowRemoved, this, [this] {
if (mHidable && mHideOnOverlap && mHidden && !isPanelOverlapped())
mShowDelayTimer.start();
});
connect(KWindowSystem::self(), &KWindowSystem::currentDesktopChanged, this, [this] {
if (mHidable && mHideOnOverlap)
{
if (!mHidden)
{
mShowDelayTimer.stop();
hidePanel();
}
else if (!isPanelOverlapped())
mShowDelayTimer.start();
}
});
connect(KWindowSystem::self(),
static_cast<void (KWindowSystem::*)(WId, NET::Properties, NET::Properties2)>(&KWindowSystem::windowChanged),
this, [this] (WId /* id */, NET::Properties prop, NET::Properties2) {
if (mHidable && mHideOnOverlap
// when a window is moved, resized, shaded, or minimized
&& (prop.testFlag(NET::WMGeometry) || prop.testFlag(NET::WMState)))
{
if (!mHidden)
{
mShowDelayTimer.stop();
hidePanel();
}
else if (!isPanelOverlapped())
mShowDelayTimer.start();
}
});
}
/************************************************
************************************************/
void LXQtPanel::readSettings()
{
// Read settings ......................................
mSettings->beginGroup(mConfigGroup);
// Let Hidability be the first thing we read
// so that every call to realign() is without side-effect
mHidable = mSettings->value(QStringLiteral(CFG_KEY_HIDABLE), mHidable).toBool();
mHidden = mHidable;
mVisibleMargin = mSettings->value(QStringLiteral(CFG_KEY_VISIBLE_MARGIN), mVisibleMargin).toBool();
mHideOnOverlap = mSettings->value(QStringLiteral(CFG_KEY_HIDE_ON_OVERLAP), mHideOnOverlap).toBool();
mAnimationTime = mSettings->value(QStringLiteral(CFG_KEY_ANIMATION), mAnimationTime).toInt();
mShowDelayTimer.setInterval(mSettings->value(QStringLiteral(CFG_KEY_SHOW_DELAY), mShowDelayTimer.interval()).toInt());
// By default we are using size & count from theme.
setPanelSize(mSettings->value(QStringLiteral(CFG_KEY_PANELSIZE), PANEL_DEFAULT_SIZE).toInt(), false);
setIconSize(mSettings->value(QStringLiteral(CFG_KEY_ICONSIZE), PANEL_DEFAULT_ICON_SIZE).toInt(), false);
setLineCount(mSettings->value(QStringLiteral(CFG_KEY_LINECNT), PANEL_DEFAULT_LINE_COUNT).toInt(), false);
setLength(mSettings->value(QStringLiteral(CFG_KEY_LENGTH), 100).toInt(),
mSettings->value(QStringLiteral(CFG_KEY_PERCENT), true).toBool(),
false);
mScreenNum = mSettings->value(QStringLiteral(CFG_KEY_SCREENNUM), 0).toInt();
setPosition(mScreenNum,
strToPosition(mSettings->value(QStringLiteral(CFG_KEY_POSITION)).toString(), PositionBottom),
false);
setAlignment(Alignment(mSettings->value(QStringLiteral(CFG_KEY_ALIGNMENT), mAlignment).toInt()), false);
QColor color = mSettings->value(QStringLiteral(CFG_KEY_FONTCOLOR), QString()).value<QColor>();
if (color.isValid())
setFontColor(color, true);
setOpacity(mSettings->value(QStringLiteral(CFG_KEY_OPACITY), 100).toInt(), true);
mReserveSpace = mSettings->value(QStringLiteral(CFG_KEY_RESERVESPACE), true).toBool();
color = mSettings->value(QStringLiteral(CFG_KEY_BACKGROUNDCOLOR), QString()).value<QColor>();
if (color.isValid())
setBackgroundColor(color, true);
QString image = mSettings->value(QStringLiteral(CFG_KEY_BACKGROUNDIMAGE), QString()).toString();
if (!image.isEmpty())
setBackgroundImage(image, false);
mLockPanel = mSettings->value(QStringLiteral(CFG_KEY_LOCKPANEL), false).toBool();
mSettings->endGroup();
}
/************************************************
************************************************/
void LXQtPanel::saveSettings(bool later)
{
mDelaySave.stop();
if (later)
{
mDelaySave.start();
return;
}
mSettings->beginGroup(mConfigGroup);
//Note: save/load of plugin names is completely handled by mPlugins object
//mSettings->setValue(CFG_KEY_PLUGINS, mPlugins->pluginNames());
mSettings->setValue(QStringLiteral(CFG_KEY_PANELSIZE), mPanelSize);
mSettings->setValue(QStringLiteral(CFG_KEY_ICONSIZE), mIconSize);
mSettings->setValue(QStringLiteral(CFG_KEY_LINECNT), mLineCount);
mSettings->setValue(QStringLiteral(CFG_KEY_LENGTH), mLength);
mSettings->setValue(QStringLiteral(CFG_KEY_PERCENT), mLengthInPercents);
mSettings->setValue(QStringLiteral(CFG_KEY_SCREENNUM), mScreenNum);
mSettings->setValue(QStringLiteral(CFG_KEY_POSITION), positionToStr(mPosition));
mSettings->setValue(QStringLiteral(CFG_KEY_ALIGNMENT), mAlignment);
mSettings->setValue(QStringLiteral(CFG_KEY_FONTCOLOR), mFontColor.isValid() ? mFontColor : QColor());
mSettings->setValue(QStringLiteral(CFG_KEY_BACKGROUNDCOLOR), mBackgroundColor.isValid() ? mBackgroundColor : QColor());
mSettings->setValue(QStringLiteral(CFG_KEY_BACKGROUNDIMAGE), QFileInfo::exists(mBackgroundImage) ? mBackgroundImage : QString());
mSettings->setValue(QStringLiteral(CFG_KEY_OPACITY), mOpacity);
mSettings->setValue(QStringLiteral(CFG_KEY_RESERVESPACE), mReserveSpace);
mSettings->setValue(QStringLiteral(CFG_KEY_HIDABLE), mHidable);
mSettings->setValue(QStringLiteral(CFG_KEY_VISIBLE_MARGIN), mVisibleMargin);
mSettings->setValue(QStringLiteral(CFG_KEY_HIDE_ON_OVERLAP), mHideOnOverlap);
mSettings->setValue(QStringLiteral(CFG_KEY_ANIMATION), mAnimationTime);
mSettings->setValue(QStringLiteral(CFG_KEY_SHOW_DELAY), mShowDelayTimer.interval());
mSettings->setValue(QStringLiteral(CFG_KEY_LOCKPANEL), mLockPanel);
mSettings->endGroup();
}
/************************************************
************************************************/
void LXQtPanel::ensureVisible()
{
if (!canPlacedOn(mScreenNum, mPosition))
setPosition(findAvailableScreen(mPosition), mPosition, false);
else
mActualScreenNum = mScreenNum;
// the screen size might be changed
realign();
}
/************************************************
************************************************/
LXQtPanel::~LXQtPanel()
{
mLayout->setEnabled(false);
delete mAnimation;
delete mConfigDialog.data();
// do not save settings because of "user deleted panel" functionality saveSettings();
}
/************************************************
************************************************/
void LXQtPanel::show()
{
QWidget::show();
KWindowSystem::setOnDesktop(effectiveWinId(), NET::OnAllDesktops);
}
/************************************************
************************************************/
QStringList pluginDesktopDirs()
{
QStringList dirs;
dirs << QString::fromLocal8Bit(qgetenv("LXQT_PANEL_PLUGINS_DIR")).split(QLatin1Char(':'), Qt::SkipEmptyParts);
dirs << QStringLiteral("%1/%2").arg(XdgDirs::dataHome(), QStringLiteral("/lxqt/lxqt-panel"));
dirs << QStringLiteral(PLUGIN_DESKTOPS_DIR);
return dirs;
}
/************************************************
************************************************/
void LXQtPanel::loadPlugins()
{
QString names_key(mConfigGroup);
names_key += QLatin1Char('/');
names_key += QLatin1String(CFG_KEY_PLUGINS);
mPlugins.reset(new PanelPluginsModel(this, names_key, pluginDesktopDirs()));
connect(mPlugins.data(), &PanelPluginsModel::pluginAdded, mLayout, &LXQtPanelLayout::addPlugin);
connect(mPlugins.data(), &PanelPluginsModel::pluginMovedUp, mLayout, &LXQtPanelLayout::moveUpPlugin);
//reemit signals
connect(mPlugins.data(), &PanelPluginsModel::pluginAdded, this, &LXQtPanel::pluginAdded);
connect(mPlugins.data(), &PanelPluginsModel::pluginRemoved, this, &LXQtPanel::pluginRemoved);
const auto plugins = mPlugins->plugins();
for (auto const & plugin : plugins)
{
mLayout->addPlugin(plugin);
connect(plugin, &Plugin::dragLeft, this, [this] {
mShowDelayTimer.stop();
hidePanel();
});
}
}
/************************************************
************************************************/
int LXQtPanel::getReserveDimension()
{
return mHidable ? PANEL_HIDE_SIZE : qMax(PANEL_MINIMUM_SIZE, mPanelSize);
}
void LXQtPanel::setPanelGeometry(bool animate)
{
const auto screens = QApplication::screens();
if (mActualScreenNum >= screens.size())
return;
const QRect currentScreen = screens.at(mActualScreenNum)->geometry();
QRect rect;
if (isHorizontal())
{
// Horiz panel ***************************
rect.setHeight(qMax(PANEL_MINIMUM_SIZE, mPanelSize));
if (mLengthInPercents)
rect.setWidth(currentScreen.width() * mLength / 100.0);
else
{
if (mLength <= 0)
rect.setWidth(currentScreen.width() + mLength);
else
rect.setWidth(mLength);
}
rect.setWidth(qMax(rect.size().width(), mLayout->minimumSize().width()));
// Horiz ......................
switch (mAlignment)
{
case LXQtPanel::AlignmentLeft:
rect.moveLeft(currentScreen.left());
break;
case LXQtPanel::AlignmentCenter:
rect.moveCenter(currentScreen.center());
break;
case LXQtPanel::AlignmentRight:
rect.moveRight(currentScreen.right());
break;
}
// Vert .......................
if (mPosition == ILXQtPanel::PositionTop)
{
if (mHidden)
rect.moveBottom(currentScreen.top() + PANEL_HIDE_SIZE - 1);
else
rect.moveTop(currentScreen.top());
}
else
{
if (mHidden)
rect.moveTop(currentScreen.bottom() - PANEL_HIDE_SIZE + 1);
else
rect.moveBottom(currentScreen.bottom());
}
}
else
{
// Vert panel ***************************
rect.setWidth(qMax(PANEL_MINIMUM_SIZE, mPanelSize));
if (mLengthInPercents)
rect.setHeight(currentScreen.height() * mLength / 100.0);
else
{
if (mLength <= 0)
rect.setHeight(currentScreen.height() + mLength);
else
rect.setHeight(mLength);
}
rect.setHeight(qMax(rect.size().height(), mLayout->minimumSize().height()));
// Vert .......................
switch (mAlignment)
{
case LXQtPanel::AlignmentLeft:
rect.moveTop(currentScreen.top());
break;
case LXQtPanel::AlignmentCenter:
rect.moveCenter(currentScreen.center());
break;
case LXQtPanel::AlignmentRight:
rect.moveBottom(currentScreen.bottom());
break;
}
// Horiz ......................
if (mPosition == ILXQtPanel::PositionLeft)
{
if (mHidden)
rect.moveRight(currentScreen.left() + PANEL_HIDE_SIZE - 1);
else
rect.moveLeft(currentScreen.left());
}
else
{
if (mHidden)
rect.moveLeft(currentScreen.right() - PANEL_HIDE_SIZE + 1);
else
rect.moveRight(currentScreen.right());
}
}
if (!mHidden || !mGeometry.isValid()) mGeometry = rect;
if (rect != geometry())
{
setFixedSize(rect.size());
if (animate)
{
if (mAnimation == nullptr)
{
mAnimation = new QPropertyAnimation(this, "geometry");
mAnimation->setEasingCurve(QEasingCurve::Linear);
//Note: for hiding, the margins are set after animation is finished
connect(mAnimation, &QAbstractAnimation::finished, this, [this] { if (mHidden) setMargins(); });
}
mAnimation->setDuration(mAnimationTime);
mAnimation->setStartValue(geometry());
mAnimation->setEndValue(rect);
//Note: for showing-up, the margins are removed instantly
if (!mHidden)
setMargins();
mAnimation->start();
}
else
{
setMargins();
setGeometry(rect);
}
}
}
void LXQtPanel::setMargins()
{
if (mHidden)
{
if (isHorizontal())
{
if (mPosition == ILXQtPanel::PositionTop)
mLayout->setContentsMargins(0, 0, 0, PANEL_HIDE_SIZE);
else
mLayout->setContentsMargins(0, PANEL_HIDE_SIZE, 0, 0);
}
else
{
if (mPosition == ILXQtPanel::PositionLeft)
mLayout->setContentsMargins(0, 0, PANEL_HIDE_SIZE, 0);
else
mLayout->setContentsMargins(PANEL_HIDE_SIZE, 0, 0, 0);
}
if (!mVisibleMargin)
setWindowOpacity(0.0);
}
else {
mLayout->setContentsMargins(0, 0, 0, 0);
if (!mVisibleMargin)
setWindowOpacity(1.0);
}
}
void LXQtPanel::realign()
{
if (!isVisible())
return;
#if 0
qDebug() << "** Realign *********************";
qDebug() << "PanelSize: " << mPanelSize;
qDebug() << "IconSize: " << mIconSize;
qDebug() << "LineCount: " << mLineCount;
qDebug() << "Length: " << mLength << (mLengthInPercents ? "%" : "px");
qDebug() << "Alignment: " << (mAlignment == 0 ? "center" : (mAlignment < 0 ? "left" : "right"));
qDebug() << "Position: " << positionToStr(mPosition) << "on" << mScreenNum;
qDebug() << "Plugins count: " << mPlugins.count();
#endif
setPanelGeometry();
// Reserve our space on the screen ..........
// It's possible that our geometry is not changed, but screen resolution is changed,
// so resetting WM_STRUT is still needed. To make it simple, we always do it.
updateWmStrut();
}
// Update the _NET_WM_PARTIAL_STRUT and _NET_WM_STRUT properties for the window
void LXQtPanel::updateWmStrut()
{
WId wid = effectiveWinId();
if(wid == 0 || !isVisible())
return;
if (mReserveSpace && QApplication::primaryScreen())
{
const QRect wholeScreen = QApplication::primaryScreen()->virtualGeometry();
const QRect rect = geometry();
// NOTE: https://standards.freedesktop.org/wm-spec/wm-spec-latest.html
// Quote from the EWMH spec: " Note that the strut is relative to the screen edge, and not the edge of the xinerama monitor."
// So, we use the geometry of the whole screen to calculate the strut rather than using the geometry of individual monitors.
// Though the spec only mention Xinerama and did not mention XRandR, the rule should still be applied.
// At least openbox is implemented like this.
switch (mPosition)
{
case LXQtPanel::PositionTop:
KWindowSystem::setExtendedStrut(wid,
/* Left */ 0, 0, 0,
/* Right */ 0, 0, 0,
/* Top */ rect.top() + getReserveDimension(), rect.left(), rect.right(),
/* Bottom */ 0, 0, 0
);
break;
case LXQtPanel::PositionBottom:
KWindowSystem::setExtendedStrut(wid,
/* Left */ 0, 0, 0,
/* Right */ 0, 0, 0,
/* Top */ 0, 0, 0,
/* Bottom */ wholeScreen.bottom() - rect.bottom() + getReserveDimension(), rect.left(), rect.right()
);
break;
case LXQtPanel::PositionLeft:
KWindowSystem::setExtendedStrut(wid,
/* Left */ rect.left() + getReserveDimension(), rect.top(), rect.bottom(),
/* Right */ 0, 0, 0,
/* Top */ 0, 0, 0,
/* Bottom */ 0, 0, 0
);
break;
case LXQtPanel::PositionRight:
KWindowSystem::setExtendedStrut(wid,
/* Left */ 0, 0, 0,
/* Right */ wholeScreen.right() - rect.right() + getReserveDimension(), rect.top(), rect.bottom(),
/* Top */ 0, 0, 0,
/* Bottom */ 0, 0, 0
);
break;
}
} else
{
KWindowSystem::setExtendedStrut(wid,
/* Left */ 0, 0, 0,
/* Right */ 0, 0, 0,
/* Top */ 0, 0, 0,
/* Bottom */ 0, 0, 0
);
}
}
/************************************************
This function checks if the panel can be placed on
the display @screenNum at @position.
NOTE: The panel can be placed only at screen edges
but no part of it should be between two screens.
************************************************/
bool LXQtPanel::canPlacedOn(int screenNum, LXQtPanel::Position position)
{
const auto screens = QApplication::screens();
if (screens.size() > screenNum)
{
const QRect screenGeometry = screens.at(screenNum)->geometry();
switch (position)
{
case LXQtPanel::PositionTop:
for (const auto& screen : screens)
{
if (screen->geometry().top() < screenGeometry.top())
{
QRect r = screenGeometry.adjusted(0, screen->geometry().top() - screenGeometry.top(), 0, 0);
if (screen->geometry().intersects(r))
return false;
}
}
return true;
case LXQtPanel::PositionBottom:
for (const auto& screen : screens)
{
if (screen->geometry().bottom() > screenGeometry.bottom())
{
QRect r = screenGeometry.adjusted(0, 0, 0, screen->geometry().bottom() - screenGeometry.bottom());
if (screen->geometry().intersects(r))
return false;
}
}
return true;
case LXQtPanel::PositionLeft:
for (const auto& screen : screens)
{
if (screen->geometry().left() < screenGeometry.left())
{
QRect r = screenGeometry.adjusted(screen->geometry().left() - screenGeometry.left(), 0, 0, 0);
if (screen->geometry().intersects(r))
return false;
}
}
return true;
case LXQtPanel::PositionRight:
for (const auto& screen : screens)
{
if (screen->geometry().right() > screenGeometry.right())
{
QRect r = screenGeometry.adjusted(0, 0, screen->geometry().right() - screenGeometry.right(), 0);
if (screen->geometry().intersects(r))
return false;
}
}
return true;
}
}
return false;
}
/************************************************
************************************************/
int LXQtPanel::findAvailableScreen(LXQtPanel::Position position)
{
int current = mScreenNum;
for (int i = current; i < QApplication::screens().size(); ++i)
if (canPlacedOn(i, position))
return i;
for (int i = 0; i < current; ++i)
if (canPlacedOn(i, position))
return i;
return 0;
}
/************************************************
************************************************/
void LXQtPanel::showConfigDialog()
{
if (mConfigDialog.isNull())
mConfigDialog = new ConfigPanelDialog(this, nullptr /*make it top level window*/);
mConfigDialog->showConfigPanelPage();
mStandaloneWindows->observeWindow(mConfigDialog.data());
mConfigDialog->show();
mConfigDialog->raise();
mConfigDialog->activateWindow();
WId wid = mConfigDialog->windowHandle()->winId();
KWindowSystem::activateWindow(wid);
KWindowSystem::setOnDesktop(wid, KWindowSystem::currentDesktop());
}
/************************************************
************************************************/
void LXQtPanel::showAddPluginDialog()
{
if (mConfigDialog.isNull())
mConfigDialog = new ConfigPanelDialog(this, nullptr /*make it top level window*/);
mConfigDialog->showConfigPluginsPage();
mStandaloneWindows->observeWindow(mConfigDialog.data());
mConfigDialog->show();
mConfigDialog->raise();
mConfigDialog->activateWindow();
WId wid = mConfigDialog->windowHandle()->winId();
KWindowSystem::activateWindow(wid);
KWindowSystem::setOnDesktop(wid, KWindowSystem::currentDesktop());
}
/************************************************
************************************************/
void LXQtPanel::updateStyleSheet()
{
// NOTE: This is a workaround for Qt >= 5.13, which might not completely
// update the style sheet (especially positioned backgrounds of plugins
// with NeedsHandle="true") if it is not reset first.
setStyleSheet(QString());
QStringList sheet;
sheet << QStringLiteral("Plugin > QAbstractButton, LXQtTray { qproperty-iconSize: %1px %1px; }").arg(mIconSize);
sheet << QStringLiteral("Plugin > * > QAbstractButton, TrayIcon { qproperty-iconSize: %1px %1px; }").arg(mIconSize);
if (mFontColor.isValid())
sheet << QString(QStringLiteral("Plugin * { color: ") + mFontColor.name() + QStringLiteral("; }"));
if (mBackgroundColor.isValid())
{
QString color = QStringLiteral("%1, %2, %3, %4")
.arg(mBackgroundColor.red())
.arg(mBackgroundColor.green())
.arg(mBackgroundColor.blue())
.arg((float) mOpacity / 100);
sheet << QString(QStringLiteral("LXQtPanel #BackgroundWidget { background-color: rgba(") + color + QStringLiteral("); }"));
}
if (QFileInfo::exists(mBackgroundImage))
sheet << QString(QStringLiteral("LXQtPanel #BackgroundWidget { background-image: url('") + mBackgroundImage + QStringLiteral("');}"));
setStyleSheet(sheet.join(QStringLiteral("\n")));
}
/************************************************
************************************************/
void LXQtPanel::setPanelSize(int value, bool save)
{
if (mPanelSize != value)
{
mPanelSize = value;
realign();
if (save)
saveSettings(true);
}
}
/************************************************
************************************************/
void LXQtPanel::setIconSize(int value, bool save)
{
if (mIconSize != value)
{
mIconSize = value;
updateStyleSheet();
mLayout->setLineSize(mIconSize);
if (save)
saveSettings(true);
realign();
}
}
/************************************************
************************************************/
void LXQtPanel::setLineCount(int value, bool save)
{
if (mLineCount != value)
{
mLineCount = value;
mLayout->setEnabled(false);
mLayout->setLineCount(mLineCount);
mLayout->setEnabled(true);
if (save)
saveSettings(true);
realign();
}
}
/************************************************
************************************************/
void LXQtPanel::setLength(int length, bool inPercents, bool save)
{
if (mLength == length &&
mLengthInPercents == inPercents)
return;
mLength = length;
mLengthInPercents = inPercents;
if (save)
saveSettings(true);
realign();
}
/************************************************
************************************************/
void LXQtPanel::setPosition(int screen, ILXQtPanel::Position position, bool save)
{
if (mScreenNum == screen &&
mPosition == position)
return;
mActualScreenNum = screen;
mPosition = position;
mLayout->setPosition(mPosition);
if (save)
{
mScreenNum = screen;
saveSettings(true);
}
// Qt 5 adds a new class QScreen and add API for setting the screen of a QWindow.
// so we had better use it. However, without this, our program should still work
// as long as XRandR is used. Since XRandR combined all screens into a large virtual desktop
// every screen and their virtual siblings are actually on the same virtual desktop.
// So things still work if we don't set the screen correctly, but this is not the case
// for other backends, such as the upcoming wayland support. Hence it's better to set it.
if(windowHandle())
{
// QScreen* newScreen = qApp->screens().at(screen);
// QScreen* oldScreen = windowHandle()->screen();
// const bool shouldRecreate = windowHandle()->handle() && !(oldScreen && oldScreen->virtualSiblings().contains(newScreen));
// Q_ASSERT(shouldRecreate == false);
// NOTE: When you move a window to another screen, Qt 5 might recreate the window as needed
// But luckily, this never happen in XRandR, so Qt bug #40681 is not triggered here.
// (The only exception is when the old screen is destroyed, Qt always re-create the window and
// this corner case triggers #40681.)