1 /* BEGIN_COMMON_COPYRIGHT_HEADER
2  * (c)LGPL2+
3  *
4  * LXQt - a lightweight, Qt based, desktop toolset
5  * https://lxqt.org
6  *
7  * Copyright: 2015 LXQt team
8  * Authors:
9  *   Dmitriy Zhukov <zjesclean@gmail.com>
10  *
11  * This program or library is free software; you can redistribute it
12  * and/or modify it under the terms of the GNU Lesser General Public
13  * License as published by the Free Software Foundation; either
14  * version 2.1 of the License, or (at your option) any later version.
15  *
16  * This library is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
19  * Lesser General Public License for more details.
20  * You should have received a copy of the GNU Lesser General
21  * Public License along with this library; if not, write to the
22  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
23  * Boston, MA 02110-1301 USA
24  *
25  * END_COMMON_COPYRIGHT_HEADER */
26 
27 #include <QBoxLayout>
28 #include <QLabel>
29 #include <QDebug>
30 #include <QEvent>
31 #include <QIcon>
32 #include <QToolButton>
33 #include <QFileInfo>
34 #include "kbdstate.h"
35 #include "content.h"
36 
Content(bool layoutEnabled)37 Content::Content(bool layoutEnabled):
38     QWidget(),
39     m_layoutEnabled(layoutEnabled)
40 {
41     QBoxLayout *box = new QBoxLayout(QBoxLayout::LeftToRight);
42     box->setContentsMargins(0, 0, 0, 0);
43     box->setSpacing(0);
44     setLayout(box);
45 
46     m_capsLock = new QLabel(tr("C", "Label for CapsLock indicator"));
47     m_capsLock->setObjectName(QStringLiteral("CapsLockLabel"));
48     m_capsLock->setAlignment(Qt::AlignCenter);
49     m_capsLock->setToolTip(tr("CapsLock", "Tooltip for CapsLock indicator"));
50     m_capsLock->installEventFilter(this);
51     layout()->addWidget(m_capsLock);
52 
53     m_numLock = new QLabel(tr("N", "Label for NumLock indicator"));
54     m_numLock->setObjectName(QStringLiteral("NumLockLabel"));
55     m_numLock->setToolTip(tr("NumLock", "Tooltip for NumLock indicator"));
56     m_numLock->setAlignment(Qt::AlignCenter);
57     m_numLock->installEventFilter(this);
58     layout()->addWidget(m_numLock);
59 
60     m_scrollLock = new QLabel(tr("S", "Label for ScrollLock indicator"));
61     m_scrollLock->setObjectName(QStringLiteral("ScrollLockLabel"));
62     m_scrollLock->setToolTip(tr("ScrollLock", "Tooltip for ScrollLock indicator"));
63     m_scrollLock->setAlignment(Qt::AlignCenter);
64     m_scrollLock->installEventFilter(this);
65     layout()->addWidget(m_scrollLock);
66 
67     m_layout = new QToolButton;
68     m_layout->setObjectName(QStringLiteral("LayoutLabel"));
69     m_layout->setAutoRaise(true);
70     connect(m_layout, &QAbstractButton::released, this, [this] { emit controlClicked(Controls::Layout); });
71     box->addWidget(m_layout, 0, Qt::AlignCenter);
72 }
73 
74 Content::~Content() = default;
75 
setup()76 bool Content::setup()
77 {
78     m_capsLock->setVisible(Settings::instance().showCapLock());
79     m_numLock->setVisible(Settings::instance().showNumLock());
80     m_scrollLock->setVisible(Settings::instance().showScrollLock());
81     m_layout->setVisible(m_layoutEnabled && Settings::instance().showLayout());
82     m_layoutFlagPattern = Settings::instance().layoutFlagPattern();
83     return true;
84 }
85 
layoutChanged(const QString & sym,const QString & name,const QString & variant)86 void Content::layoutChanged(const QString & sym, const QString & name, const QString & variant)
87 {
88     m_layout->setText(sym.toUpper());
89     QString flag_file;
90     if (m_layoutFlagPattern.contains(QStringLiteral("%1")))
91         flag_file = m_layoutFlagPattern.arg(sym);
92     if (flag_file.isEmpty() || !QFileInfo::exists(flag_file))
93     {
94         m_layout->setToolButtonStyle(Qt::ToolButtonTextOnly);
95         m_layout->setIcon({});
96     } else
97     {
98         m_layout->setIcon(QIcon{flag_file});
99         m_layout->setToolButtonStyle(m_layout->icon().pixmap(m_layout->iconSize()).isNull() ? Qt::ToolButtonTextOnly : Qt::ToolButtonIconOnly);
100     }
101     QString txt = QStringLiteral("<html><table>\
102     <tr><td>%1: </td><td>%3</td></tr>\
103     <tr><td>%2: </td><td>%4</td></tr>\
104     </table></html>").arg(tr("Layout")).arg(tr("Variant")).arg(name).arg(variant);
105     m_layout->setToolTip(txt);
106 }
107 
modifierStateChanged(Controls mod,bool active)108 void Content::modifierStateChanged(Controls mod, bool active)
109 {
110     setEnabled(mod, active);
111 }
112 
113 
setEnabled(Controls cnt,bool enabled)114 void Content::setEnabled(Controls cnt, bool enabled)
115 {
116     widget(cnt)->setEnabled(enabled);
117 }
118 
widget(Controls cnt) const119 QWidget* Content::widget(Controls cnt) const
120 {
121     switch(cnt){
122     case Caps:   return m_capsLock;
123     case Num:    return m_numLock;
124     case Scroll: return m_scrollLock;
125     case Layout: return m_layout;
126     }
127     return nullptr;
128 }
129 
eventFilter(QObject * object,QEvent * event)130 bool Content::eventFilter(QObject *object, QEvent *event)
131 {
132     if (event->type() == QEvent::QEvent::MouseButtonRelease)
133     {
134         if (object == m_capsLock)
135             emit controlClicked(Controls::Caps);
136         else if (object == m_numLock)
137             emit controlClicked(Controls::Num);
138         else if (object == m_scrollLock)
139             emit controlClicked(Controls::Scroll);
140     }
141 
142     return QWidget::eventFilter(object, event);
143 }
144 
showHorizontal()145 void Content::showHorizontal()
146 {
147     qobject_cast<QBoxLayout*>(layout())->setDirection(QBoxLayout::LeftToRight);
148 }
149 
showVertical()150 void Content::showVertical()
151 {
152     qobject_cast<QBoxLayout*>(layout())->setDirection(QBoxLayout::TopToBottom);
153 }
154