Sample Hotkey

Demonstrates the usage of IKeyboard

refs #83

samples/hotkey/hotkey.cpp

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+/* Copyright (C) 2013 VATSIM Community / contributors
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "hotkey.h"
+
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QGroupBox>
+
+HotkeyDialog::HotkeyDialog(QWidget *parent) :
+    QDialog(parent),
+    m_keyboard(nullptr),
+    m_pbSelect(nullptr),
+    m_lblHotkey(nullptr),
+    m_led(nullptr)
+{
+    m_keyboard = BlackCore::IKeyboard::getInstance();
+
+    setupUi();
+    setupConnections();
+}
+
+HotkeyDialog::~HotkeyDialog()
+{
+}
+
+void HotkeyDialog::selectHotKey()
+{
+    m_lblHotkey->setText("Press any key...");
+    m_keyboard->startCapture(false);
+}
+
+void HotkeyDialog::keySelectionChanged(BlackMisc::Hardware::CKeyboardKey key)
+{
+    m_lblHotkey->setText(key.toFormattedQString());
+}
+
+void HotkeyDialog::keySelectionFinished(BlackMisc::Hardware::CKeyboardKey key)
+{
+    m_lblHotkey->setText(key.toFormattedQString());
+    m_keyboard->unregisterAllHotkeys();
+    m_keyboard->registerHotkey(key, this, &HotkeyDialog::setPressed);
+}
+
+void HotkeyDialog::setPressed(bool isPressed)
+{
+    m_led->setChecked(isPressed);
+    update();
+}
+
+void HotkeyDialog::setupUi()
+{
+    m_pbSelect = new QPushButton(this);
+    m_pbSelect->setText("Select");
+    QFont font;
+    font.setPointSize(15);
+    m_lblHotkey = new QLabel(this);
+    m_lblHotkey->setFont(font);
+    m_lblHotkey->setAlignment(Qt::AlignCenter);
+    m_led = new CLed(this);
+
+    // PTT group box
+    QGroupBox *upperGroup = new QGroupBox;
+    upperGroup->setTitle("PTT");
+    QHBoxLayout *upperLine = new QHBoxLayout;
+    upperLine->addWidget(m_led);
+    upperGroup->setLayout(upperLine);
+
+    // Setting group box
+    QGroupBox *lowerGroup = new QGroupBox;
+    lowerGroup->setTitle("Setting");
+    QVBoxLayout *lowerLine = new QVBoxLayout;
+    lowerLine->addWidget(m_lblHotkey);
+    lowerLine->addWidget(m_pbSelect);
+    lowerGroup->setLayout(lowerLine);
+
+    // Main Layout
+    QVBoxLayout *mainLayout = new QVBoxLayout;
+    mainLayout->addWidget(upperGroup);
+    mainLayout->addWidget(lowerGroup);
+
+    setLayout(mainLayout);
+    setWindowTitle("Sample Hotkey");
+
+}
+void HotkeyDialog::setupConnections()
+{
+    connect(m_keyboard, &BlackCore::IKeyboard::keySelectionChanged, this, &HotkeyDialog::keySelectionChanged);
+    connect(m_keyboard, &BlackCore::IKeyboard::keySelectionFinished, this, &HotkeyDialog::keySelectionFinished);
+    connect(m_pbSelect, &QPushButton::clicked, this, &HotkeyDialog::selectHotKey);
+}

samples/hotkey/hotkey.h

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+/* Copyright (C) 2013 VATSIM Community / contributors
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef BLACKSAMPLE_HOTKEY_H
+#define BLACKSAMPLE_HOTKEY_H
+
+#include "led.h"
+#include "blackcore/keyboard.h"
+#include "blackmisc/hwkeyboardkey.h"
+
+#include <QDialog>
+#include <QPushButton>
+#include <QLabel>
+#include <QScopedPointer>
+
+class HotkeyDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    /*!
+     * \brief Constructor
+     * \param parent
+     */
+    explicit HotkeyDialog(QWidget *parent = 0);
+
+    //! Destructor
+    ~HotkeyDialog();
+
+public slots:
+    //! \brief Slot to select a new hot key
+    void selectHotKey();
+
+private slots:
+    /*!
+     * \brief Slot when the selected key set has changed
+     * \param keySet
+     */
+    void keySelectionChanged(BlackMisc::Hardware::CKeyboardKey key);
+
+    /*!
+     * \brief Slot when the key selection is finished
+     * \param keySet
+     */
+    void keySelectionFinished(BlackMisc::Hardware::CKeyboardKey key);
+
+private:
+    /*!
+     * \brief Set the key status
+     * \param isPressed
+     */
+    void setPressed(bool isPressed);
+
+private:
+    void setupUi();
+    void setupConnections();
+
+    BlackCore::IKeyboard *m_keyboard;
+    QPushButton *m_pbSelect;
+    QLabel      *m_lblHotkey;
+    CLed        *m_led;
+};
+
+#endif // BLACKSAMPLE_HOTKEY_H

samples/hotkey/led.cpp

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+/* Copyright (C) 2013 VATSIM Community / contributors
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "led.h"
+#include <QPen>
+#include <QPainter>
+#include <QPointF>
+#include <QRadialGradient>
+
+CLed::CLed(QWidget *parent) :
+    QWidget(parent),
+    m_isChecked(false)
+{
+}
+
+void CLed::paintEvent(QPaintEvent * /* event */)
+{
+    qint32 diameter = qMin(width(), height());
+
+    QPainter painter(this);
+    painter.setRenderHint(QPainter::Antialiasing);
+    painter.translate(width() / 2, height() / 2);
+    painter.scale(diameter / 50.0, diameter / 50.0);
+
+    drawLed(painter);
+    drawShine(painter);
+}
+
+QSize CLed::minimumSizeHint() const
+{
+    return QSize(50, 50);
+}
+
+void CLed::drawLed(QPainter &painter)
+{
+    // Draw circle
+    QColor backgroundColor;
+
+    if (isChecked())
+        backgroundColor = Qt::red;
+    else
+        backgroundColor = Qt::gray;
+
+    // Black border color
+    // Fill color depends on the state
+    QPen penCircle;
+    penCircle.setColor(Qt::black);
+    penCircle.setWidthF(10.0);
+    painter.setBrush(backgroundColor);
+    painter.drawEllipse(QPointF(0.0, 0.0), 24.5, 24.5);
+}
+
+void CLed::drawShine(QPainter &painter)
+{
+    // Draw shine
+    QColor white1(255,255,255,200);
+    QColor white0(255,255,255,0);
+    QRadialGradient shine(QPointF(-10.0,-10.0),30.0,QPointF(-10,-10));
+    shine.setColorAt(0.0, white1);
+    shine.setColorAt(1.0, white0);
+    painter.setBrush(shine);
+    painter.drawEllipse(QPointF(0.0, 0.0), 24.0, 24.0);
+}
+
+

samples/hotkey/led.h

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+/* Copyright (C) 2013 VATSIM Community / authors
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef BLACKSAMPLE_LED_H
+#define BLACKSAMPLE_LED_H
+
+#include <QWidget>
+#include <QPainter>
+
+//! \brief LED widget
+class CLed : public QWidget
+{
+    Q_OBJECT
+public:
+    CLed(QWidget *parent = 0);
+
+    /*!
+     * \brief LED color
+     * \return
+     */
+    QColor color() const { return m_color; }
+
+    /*!
+     * \brief Set LED color
+     * \param color
+     */
+    void setColor(QColor color) { m_color = color; }
+
+    /*!
+     * \brief isChecked
+     * \return
+     */
+    bool isChecked () const { return m_isChecked; }
+
+    //! \copydoc QWidget::minimumSizeHint()
+    virtual QSize minimumSizeHint () const override;
+
+protected:
+    //! \copydoc QWidget::minimumSizeHint()
+    virtual void paintEvent(QPaintEvent * event) override;
+
+signals:
+    /*!
+     * \brief Check value has changed
+     * \param value
+     */
+    void checkChanged(bool value);
+
+public slots:
+    /*!
+     * \brief setChecked
+     * \param value
+     */
+    void setChecked(bool value) {m_isChecked = value;}
+
+private:
+    /*!
+     * \brief drawLed
+     * \param painter
+     */
+    void drawLed(QPainter & painter);
+
+    /*!
+     * \brief drawShine
+     * \param painter
+     */
+    void drawShine(QPainter & painter);
+
+    bool m_isChecked;
+    QColor m_color;
+
+};
+
+#endif // BLACKSAMPLE_LED_H

samples/hotkey/main.cpp

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+/* Copyright (C) 2013 VATSIM Community / contributors
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "hotkey.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    HotkeyDialog w;
+    w.show();
+
+    return a.exec();
+}

samples/hotkey/sample_hotkey.pro

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+include (../../externals.pri)
+
+QT       += core gui dbus network
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = sample_hotkey
+CONFIG   += c++11
+CONFIG   -= app_bundle
+TEMPLATE = app
+
+DEPENDPATH += . ../../src
+INCLUDEPATH += . ../../src
+
+SOURCES += *.cpp
+HEADERS += *.h
+
+LIBS    += -L../../lib -lblackcore -lblackmisc
+
+win32:!win32-g++*: PRE_TARGETDEPS += ../../lib/blackmisc.lib \
+                                     ../../lib/blackcore.lib
+else:              PRE_TARGETDEPS += ../../lib/libblackmisc.a \
+                                     ../../lib/libblackcore.a
+
+DESTDIR = ../../bin