New Qml based dock widget support

src/ViewWidgets/ViewWidget.qml

+import QtQuick 2.2
+import QtQuick.Controls 1.2
+import QtQuick.Controls.Styles 1.2
+
+import QGroundControl.Palette 1.0
+import QGroundControl.Controllers 1.0
+
+Rectangle {
+	property Component connectedComponent: __componentConnected
+	property Component disconnectedComponent: __componentDisconnected
+
+	QGCPalette { id: __qgcPal; colorGroupEnabled: enabled }
+	ViewWidgetController { id: __controller }
+
+	color: __qgcPal.window
+
+	Component.onCompleted: __controller.checkForVehicle()
+
+	Connections {
+		target: __controller
+
+		onPluginConnected: {
+			pageLoader.autopilot = autopilot
+			pageLoader.sourceComponent = connectedComponent
+		}
+
+		onPluginDisconnected: {
+			pageLoader.sourceComponent = disconnectedComponent
+			pageLoader.autopilot = {}
+		}
+	}
+
+	Loader {
+		id: pageLoader
+
+		anchors.fill: parent
+
+		property var autopilot
+
+		sourceComponent: __componentDisconnected
+	}
+
+	Component {
+		id: __componentConnected
+
+		Rectangle {
+			QGCPalette { id: __qgcPal; colorGroupEnabled: enabled }
+
+			anchors.fill:	parent
+			color:			__qgcPal.window
+
+			QGCLabel {
+				anchors.fill:	parent
+
+				horizontalAlignment:	Text.AlignHCenter
+				verticalAlignment:		Text.AlignVCenter
+
+				text: "missing connected implementation"
+			}
+		}
+	}
+
+	Component {
+		id: __componentDisconnected
+
+		Rectangle {
+			QGCPalette { id: __qgcPal; colorGroupEnabled: enabled }
+
+			anchors.fill:	parent
+			color:			__qgcPal.window
+
+			QGCLabel {
+				anchors.fill:	parent
+
+				horizontalAlignment:	Text.AlignHCenter
+				verticalAlignment:		Text.AlignVCenter
+
+				text: "no vehicle connected"
+			}
+		}
+	}
+}

src/ViewWidgets/ViewWidgetController.cc

+/*=====================================================================
+ 
+ QGroundControl Open Source Ground Control Station
+ 
+ (c) 2009 - 2014 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
+ 
+ This file is part of the QGROUNDCONTROL project
+ 
+ QGROUNDCONTROL is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+ 
+ QGROUNDCONTROL 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 General Public License for more details.
+ 
+ You should have received a copy of the GNU General Public License
+ along with QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.
+ 
+ ======================================================================*/
+
+#include "ViewWidgetController.h"
+#include "UASManager.h"
+#include "AutoPilotPluginManager.h"
+
+ViewWidgetController::ViewWidgetController(void) :
+	_autopilot(NULL)
+{
+	_uasManager = UASManager::instance();
+	Q_ASSERT(_uasManager);
+	
+	connect(_uasManager, &UASManagerInterface::activeUASSet, this, &ViewWidgetController::_activeUasChanged);
+}
+
+void ViewWidgetController::_activeUasChanged(UASInterface* currentUas)
+{
+	if (currentUas != _uas) {
+		if (_uas) {
+			disconnect(_autopilot, &AutoPilotPlugin::pluginReadyChanged, this, &ViewWidgetController::_pluginReadyChanged);
+			_uas = NULL;
+			_autopilot =  NULL;
+			emit pluginDisconnected();
+		}
+		
+		if (currentUas) {
+			_uas = currentUas;
+			_autopilot = AutoPilotPluginManager::instance()->getInstanceForAutoPilotPlugin(currentUas);
+			Q_ASSERT(_autopilot);
+			
+			connect(_autopilot, &AutoPilotPlugin::pluginReadyChanged, this, &ViewWidgetController::_pluginReadyChanged);
+			if (_autopilot->pluginReady()) {
+				_pluginReadyChanged(true);
+			}
+		}
+	}
+}
+
+void ViewWidgetController::_pluginReadyChanged(bool pluginReady)
+{
+	Q_ASSERT(_autopilot);
+	
+	if (pluginReady) {
+		emit pluginConnected(QVariant::fromValue(_autopilot));
+	} else {
+		_activeUasChanged(NULL);
+	}
+}
+
+Q_INVOKABLE void ViewWidgetController::checkForVehicle(void)
+{
+	_activeUasChanged(_uasManager->getActiveUAS());
+}

src/ViewWidgets/ViewWidgetController.h

+/*=====================================================================
+ 
+ QGroundControl Open Source Ground Control Station
+ 
+ (c) 2009 - 2014 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
+ 
+ This file is part of the QGROUNDCONTROL project
+ 
+ QGROUNDCONTROL is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+ 
+ QGROUNDCONTROL 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 General Public License for more details.
+ 
+ You should have received a copy of the GNU General Public License
+ along with QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.
+ 
+ ======================================================================*/
+
+#ifndef VIEWWIDGETCONTROLLER_H
+#define VIEWWIDGETCONTROLLER_H
+
+#include <QObject>
+
+#include "UASInterface.h"
+#include "AutoPilotPlugin.h"
+#include "UASManagerInterface.h"
+
+class ViewWidgetController : public QObject
+{
+	Q_OBJECT
+	
+public:
+	ViewWidgetController(void);
+	
+	Q_INVOKABLE void checkForVehicle(void);
+	
+signals:
+	void pluginConnected(QVariant autopilot);
+	void pluginDisconnected(void);
+	
+private slots:
+	void _activeUasChanged(UASInterface* UAS);
+	void _pluginReadyChanged(bool pluginReady);
+
+private:
+	AutoPilotPlugin*		_autopilot;
+	UASManagerInterface*	_uasManager;
+	UASInterface*			_uas;
+};
+
+#endif
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