Added a FPS/Cpu-load overload

Long-press on the time in the status-bar to (de)activate it.

Change-Id: I8386c35747d486f8995042b5b9ce3be90650c3f3
Reviewed-by: Dominik Holland <dominik.holland@pelagicore.com>

3 files changed, 156 insertions, 0 deletions

diff --git a/sysui/Display.qml b/sysui/Display.qml
index f98066f..9da2c93 100644
--- a/sysui/Display.qml
+++ b/sysui/Display.qml
@@ -68,6 +68,9 @@ Item {
                     root.state = "statusBarExpanded"
                 }
             }
+            onTimePressAndHold: {
+                fpsMonitor.visible = !fpsMonitor.visible
+            }
         }
 
         Item {
@@ -126,6 +129,15 @@ Item {
             }
         }
 
+        FpsMonitor {
+            id: fpsMonitor
+            x: 0
+            y: 0
+            width: Style.hspan(4)
+            height: Style.vspan(2)
+            visible: false
+            opacity: 0.8
+        }
     }
 
     Loader {
diff --git a/sysui/FpsMonitor.qml b/sysui/FpsMonitor.qml
new file mode 100644
index 0000000..f5d6980
--- /dev/null
+++ b/sysui/FpsMonitor.qml
@@ -0,0 +1,142 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 Pelagicore AG
+** Contact: http://www.qt.io/ or http://www.pelagicore.com/
+**
+** This file is part of the Neptune IVI UI.
+**
+** $QT_BEGIN_LICENSE:GPL3-PELAGICORE$
+** Commercial License Usage
+** Licensees holding valid commercial Pelagicore Neptune IVI UI
+** licenses may use this file in accordance with the commercial license
+** agreement provided with the Software or, alternatively, in accordance
+** with the terms contained in a written agreement between you and
+** Pelagicore. For licensing terms and conditions, contact us at:
+** http://www.pelagicore.com.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3 requirements will be
+** met: http://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+** SPDX-License-Identifier: GPL-3.0
+**
+****************************************************************************/
+
+import QtQuick 2.1
+import io.qt.ApplicationManager 1.0
+
+
+Rectangle {
+    id: root
+    color: "white"
+
+    property int currentFps: 0
+
+    Connections {
+        target: SystemMonitor
+        onFpsReportingChanged: { root.currentFps = Math.floor(average) }
+    }
+
+    onVisibleChanged: {
+        SystemMonitor.reportingInterval = 200
+        SystemMonitor.reportingRange = 10 * 1000
+        SystemMonitor.fpsReportingEnabled = visible
+        SystemMonitor.cpuLoadReportingEnabled = visible
+    }
+
+    Item {
+        id: yscale
+        width: childrenRect.width
+        height: parent.height
+
+        Text {
+            anchors {
+                right: parent.right
+                top: parent.top
+                topMargin: parent.height / 8 * 2
+            }
+            text: "60"
+        }
+        Text {
+            anchors {
+                bottom: yscale.bottom
+                right: parent.right
+            }
+            text: "0"
+        }
+    }
+
+    Rectangle {
+        id: ybar
+        width: 1
+        anchors {
+            top: parent.top
+            bottom: parent.bottom
+            left: yscale.right
+            leftMargin: 4
+        }
+        color: "black"
+    }
+
+    ListView {
+        id: graph
+        anchors {
+            top: parent.top
+            right: parent.right
+            bottom: parent.bottom
+            left: ybar.right
+            leftMargin: 4
+        }
+
+        model: SystemMonitor
+        orientation: ListView.Horizontal
+        interactive: false
+
+        delegate: Item {
+            width: graph.width / graph.model.count
+            height: graph.height
+            Rectangle {
+                width: parent.width
+                height: (model.averageFps/80)*parent.height
+                anchors.bottom: parent.bottom
+                color: "yellow"
+            }
+            Rectangle {
+                width: parent.width
+                y: parent.height - (model.minimumFps/80)*parent.height
+                height: 2
+                color: "red"
+                opacity: 0.5
+            }
+            Rectangle {
+                width: parent.width
+                y: parent.height - (model.maximumFps/80)*parent.height
+                height: 2
+                color: "green"
+                opacity: 0.5
+                visible: model.maximumFps < 80
+            }
+            Rectangle {
+                width: parent.width
+                height: (model.cpuLoad * parent.height)
+                anchors.top: parent.top
+                color: "blue"
+            }
+        }
+        Text {
+            id: currentFps
+            anchors.centerIn: parent
+            text: root.currentFps + " fps"
+            font.italic: true
+            font.pixelSize: parent.height / 6
+        }
+    }
+}
+
+
diff --git a/sysui/StatusBar/StatusBar.qml b/sysui/StatusBar/StatusBar.qml
index 1505c90..8571218 100644
--- a/sysui/StatusBar/StatusBar.qml
+++ b/sysui/StatusBar/StatusBar.qml
@@ -40,10 +40,12 @@ UIElement {
     hspan: 24
     vspan: 2
     signal clicked()
+    signal timePressAndHold();
 
     MouseArea {
         anchors.fill: parent
         onClicked: root.clicked()
+        onPressAndHold: root.timePressAndHold()
     }
 
     Rectangle {