The joystick widget now has theming capabilities. Also displays button presses properly now.

files/styles/style-dark.css

@@ -9,6 +9,12 @@
     color: #777;
 }
 
+JoystickWidget QLabel {
+    border: 1px solid #AAA;
+    border-radius: 4px;
+    height: 16px;
+}
+
 QCheckBox {
     color: #DDD;
 }

files/styles/style-light.css

@@ -9,6 +9,12 @@
     color: #AAA;
 }
 
+JoystickWidget QLabel {
+    border: 1px solid #777;
+    border-radius: 4px;
+    height: 16px;
+}
+
 QCheckBox {
     color: #222;
 }

src/ui/JoystickWidget.cc

 #include "JoystickWidget.h"
+#include "MainWindow.h"
 #include "ui_JoystickWidget.h"
 #include <QDebug>
 #include <QDesktopWidget>
@@ -20,7 +21,8 @@ JoystickWidget::JoystickWidget(JoystickInput* joystick, QWidget *parent) :
 
     // Watch for input events from the joystick
     connect(this->joystick, SIGNAL(joystickChanged(double,double,double,double,int,int,int)), this, SLOT(updateJoystick(double,double,double,double,int,int)));
-    connect(this->joystick, SIGNAL(buttonPressed(int)), this, SLOT(pressKey(int)));
+    connect(this->joystick, SIGNAL(buttonPressed(int)), this, SLOT(joystickButtonPressed(int)));
+    connect(this->joystick, SIGNAL(buttonReleased(int)), this, SLOT(joystickButtonReleased(int)));
 
     // Watch for changes to the button/axis mappings
     connect(m_ui->rollMapSpinBox, SIGNAL(valueChanged(int)), this->joystick, SLOT(setMappingXAxis(int)));
@@ -32,6 +34,10 @@ JoystickWidget::JoystickWidget(JoystickInput* joystick, QWidget *parent) :
     // Update the UI if the joystick changes.
     connect(m_ui->joystickNameComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(updateUIForJoystick(int)));
 
+    // Update the button label colors based on the current theme and watch for future theme changes.
+    styleChanged(MainWindow::instance()->getStyle());
+    connect(MainWindow::instance(), SIGNAL(styleChanged(MainWindow::QGC_MAINWINDOW_STYLE)), this, SLOT(styleChanged(MainWindow::QGC_MAINWINDOW_STYLE)));
+
     // Display the widget above all other windows.
     this->raise();
     this->show();
@@ -59,6 +65,18 @@ void JoystickWidget::initUI()
     updateUIForJoystick(joystick->getJoystickID());
 }
 
+void JoystickWidget::styleChanged(MainWindow::QGC_MAINWINDOW_STYLE newStyle)
+{
+    if (newStyle == MainWindow::QGC_MAINWINDOW_STYLE_LIGHT)
+    {
+        buttonLabelColor = QColor(0x73, 0xD9, 0x5D);
+    }
+    else
+    {
+        buttonLabelColor = QColor(0x14, 0xC6, 0x14);
+    }
+}
+
 JoystickWidget::~JoystickWidget()
 {
     delete m_ui;
@@ -87,10 +105,11 @@ void JoystickWidget::changeEvent(QEvent *e)
 void JoystickWidget::updateUIForJoystick(int id)
 {
     // Delete all the old buttonlabels
-    foreach (QLabel* l, m_ui->buttonLabelBox->findChildren<QLabel*>())
+    foreach (QLabel* l, buttonLabels)
     {
         delete l;
     }
+    buttonLabels.clear();
 
     // Set the JoystickInput to listen to the new joystick instead.
     joystick->setActiveJoystick(id);
@@ -104,6 +123,7 @@ void JoystickWidget::updateUIForJoystick(int id)
         buttonLabel->setAlignment(Qt::AlignCenter);
         // And make sure we insert BEFORE the vertical spacer.
         m_ui->buttonLabelLayout->insertWidget(i, buttonLabel);
+        buttonLabels.append(buttonLabel);
     }
 
     // Update the mapping UI
@@ -141,47 +161,15 @@ void JoystickWidget::setHat(float x, float y)
     updateStatus(tr("Hat position: x: %1, y: %2").arg(x).arg(y));
 }
 
-void JoystickWidget::pressKey(int key)
+void JoystickWidget::joystickButtonPressed(int key)
+{
+    QString colorStyle = QString("QLabel { background-color: %1;}").arg(buttonLabelColor.name());
+    buttonLabels.at(key)->setStyleSheet(colorStyle);
+}
+
+void JoystickWidget::joystickButtonReleased(int key)
 {
-//    QString colorstyle;
-//    QColor buttonStyleColor = QColor(20, 200, 20);
-//    colorstyle = QString("QLabel { border: 1px solid #EEEEEE; border-radius: 4px; padding: 0px; margin: 0px; background-color: %1;}").arg(buttonStyleColor.name());
-//    switch(key) {
-//    case 0:
-//        m_ui->button0->setStyleSheet(colorstyle);
-//        break;
-//    case 1:
-//        m_ui->button1->setStyleSheet(colorstyle);
-//        break;
-//    case 2:
-//        m_ui->button2->setStyleSheet(colorstyle);
-//        break;
-//    case 3:
-//        m_ui->button3->setStyleSheet(colorstyle);
-//        break;
-//    case 4:
-//        m_ui->button4->setStyleSheet(colorstyle);
-//        break;
-//    case 5:
-//        m_ui->button5->setStyleSheet(colorstyle);
-//        break;
-//    case 6:
-//        m_ui->button6->setStyleSheet(colorstyle);
-//        break;
-//    case 7:
-//        m_ui->button7->setStyleSheet(colorstyle);
-//        break;
-//    case 8:
-//        m_ui->button8->setStyleSheet(colorstyle);
-//        break;
-//    case 9:
-//        m_ui->button9->setStyleSheet(colorstyle);
-//        break;
-//    case 10:
-//        m_ui->button10->setStyleSheet(colorstyle);
-//        break;
-//    }
-    updateStatus(tr("Key %1 pressed").arg(key));
+    buttonLabels.at(key)->setStyleSheet("");
 }
 
 void JoystickWidget::updateStatus(const QString& status)

src/ui/JoystickWidget.h

@@ -32,7 +32,9 @@ This file is part of the PIXHAWK project
 #define JOYSTICKWIDGET_H
 
 #include <QtGui/QDialog>
+#include <QLabel>
 #include "JoystickInput.h"
+#include "MainWindow.h"
 
 namespace Ui
 {
@@ -69,10 +71,14 @@ public slots:
     void setZ(float z);
     /** @brief Hat switch position */
     void setHat(float x, float y);
-    /** @brief Joystick keys, as labeled on the joystick */
-    void pressKey(int key);
+    /** @brief Trigger a UI change based on a button being pressed */
+    void joystickButtonPressed(int key);
+    /** @brief Trigger a UI change based on a button being released */
+    void joystickButtonReleased(int key);
     /** @brief Update status string */
     void updateStatus(const QString& status);
+    /** @brief Update the UI color scheme when the MainWindow theme changes. */
+    void styleChanged(MainWindow::QGC_MAINWINDOW_STYLE);
 
 protected:
     /** @brief Update the proper number of buttons for the current joystick. */
@@ -80,6 +86,10 @@ protected:
     /** @brief UI change event */
     virtual void changeEvent(QEvent *e);
     JoystickInput* joystick;  ///< Reference to the joystick
+    /** @brief a list of all button labels generated for this joystick. */
+    QList<QLabel*> buttonLabels;
+    /** @brief The color to use for button labels when their corresponding button is pressed */
+    QColor buttonLabelColor;
 
 protected slots:
     /** @brief Update the UI for a new joystick based on SDL ID. */

src/ui/MainWindow.h

@@ -51,7 +51,6 @@ This file is part of the QGROUNDCONTROL project
 #include "MAVLinkSimulationLink.h"
 #include "ObjectDetectionView.h"
 #include "submainwindow.h"
-#include "JoystickWidget.h"
 #include "input/JoystickInput.h"
 #if (defined MOUSE_ENABLED_WIN) | (defined MOUSE_ENABLED_LINUX)
 #include "Mouse6dofInput.h"
@@ -87,6 +86,7 @@ class QSplashScreen;
 class QGCStatusBar;
 class Linecharts;
 class QGCDataPlot2D;
+class JoystickWidget;
 
 /**
  * @brief Main Application Window