Added touch focus
[harmattan/cameraplus] / qml / CameraPage.qml
1 // -*- qml -*-
2
3 /*!
4  * This file is part of CameraPlus.
5  *
6  * Copyright (C) 2012 Mohammed Sameer <msameer@foolab.org>
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with this library; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
21  */
22
23 import QtQuick 1.1
24 import com.nokia.meego 1.1
25 import QtCamera 1.0
26 import CameraPlus 1.0
27 import QtMobility.systeminfo 1.2
28
29 Page {
30         id: page
31
32         property alias standbyWidget: standby
33
34         property bool needsPipeline: true
35         property int policyMode: CameraResources.None
36
37         property Camera cam: null
38         property bool controlsVisible: cam.running && !standby.visible
39         property bool zoomVisible: true
40         property bool modesVisible: true
41         property bool standbyVisible: true
42         property bool focusReticleVisible: true
43
44         anchors.fill: parent
45
46         property alias previewAnimationRunning: preview.animationRunning
47
48         signal batteryLow
49
50         function updatePolicy() {
51                 if (needsPipeline && Qt.application.active && status == PageStatus.Active) {
52                         pipelineManager.reset();
53                 }
54         }
55
56         onStatusChanged: {
57                 if (status == PageStatus.Active) {
58                         focusReticle.setRegionOfInterest();
59                 }
60         }
61
62         FocusReticle {
63                 visible: controlsVisible && focusReticleVisible && cam.autoFocus.canFocus(cam.scene.value);
64                 id: focusReticle
65                 cafStatus: cam.autoFocus.cafStatus
66                 status: cam.autoFocus.status
67         }
68
69         Rectangle {
70                 // TODO: fade out transition
71                 // TODO: there is a toolbar visible on the first startup
72                 id: standby
73                 color: "black"
74                 anchors.fill: parent
75                 visible: standbyVisible && page.status == PageStatus.Active && pipelineManager.showStandBy
76
77                 Image {
78                         id: icon
79                         source: "image://theme/icon-l-camera-standby"
80                         anchors.centerIn: parent
81                 }
82
83                 Label {
84                         anchors.top: icon.bottom
85                         anchors.right: parent.right
86                         anchors.left: parent.left
87                         text: qsTr("Resources lost")
88                         color: "white"
89                         font.pixelSize: 36
90                         horizontalAlignment: Text.AlignHCenter
91                         visible: pipelineManager.state == "policyLost"
92                 }
93         }
94
95         function setPreview(image) {
96                 preview.setPreview(image);
97         }
98
99         ModeButton {
100                 anchors.bottom: parent.bottom
101                 anchors.right: parent.right
102                 anchors.rightMargin: 20
103                 anchors.bottomMargin: 20
104                 visible: controlsVisible && modesVisible
105         }
106
107         PreviewImage {
108                 id: preview
109         }
110
111         ZoomSlider {
112                 id: zoom
113                 camera: cam
114                 anchors.top: parent.top
115                 anchors.topMargin: 0
116                 anchors.horizontalCenter: parent.horizontalCenter
117                 visible: controlsVisible && zoomVisible
118         }
119
120         function checkDiskSpace() {
121                 return fileSystem.hasFreeSpace(fileNaming.path);
122         }
123
124         function checkBattery() {
125                 // We are fine if we are connected to the charger:
126                 if (batteryMonitor.chargingState == BatteryInfo.Charging) {
127                         return true;
128                 }
129
130                 // If we have enough battery then we are fine:
131                 if (batteryMonitor.batteryStatus > BatteryInfo.BatteryCritical) {
132                         return true;
133                 }
134
135                 return false;
136         }
137
138         BatteryInfo {
139                 id: batteryMonitor
140                 monitorChargingStateChanges: cam.running
141                 monitorBatteryStatusChanges: cam.running
142
143                 onChargingStateChanged: {
144                         if (!checkBattery()) {
145                                 parent.batteryLow();
146                         }
147                 }
148
149                 onBatteryStatusChanged:  {
150                         if (!checkBattery()) {
151                                 parent.batteryLow();
152                         }
153                 }
154         }
155 }