cgit.sxemacs.org Git - harmattan/cameraplus/blob - 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
  28 Page {
  29         id: page
  30
  31         property alias standbyWidget: standby
  32
  33         property bool needsPipeline: true
  34         property int policyMode: CameraResources.None
  35
  36         Component.onCompleted: {
  37                 if (Qt.application.active && needsPipeline) {
  38                         resourcePolicy.acquire(page.policyMode);
  39                 }
  40         }
  41
  42         onStatusChanged: {
  43                 if (Qt.application.active && status == PageStatus.Activating) {
  44                         resourcePolicy.acquire(page.policyMode);
  45                 }
  46         }
  47 /*
  48         onStatusChanged: {
  49                 if (status == PageStatus.Active && !page.needsPipeline) {
  50                         cam.stop();
  51                 }
  52         }
  53 */
  54
  55         onPolicyModeChanged: {
  56                 if (Qt.application.active) {
  57                         resourcePolicy.acquire(page.policyMode);
  58                 }
  59         }
  60
  61         function handlePipeline() {
  62                 if (!Qt.application.active) {
  63                         // TODO: force if we lost resources ?
  64                         cam.stop();
  65                 }
  66                 else if (resourcePolicy.acquired && page.needsPipeline && !cam.running) {
  67                         // TODO: error
  68                         cam.start();
  69                 }
  70                 else if (!resourcePolicy.acquired) {
  71                         // TODO: force
  72                         cam.stop();
  73                 }
  74         }
  75
  76         Connections {
  77                 target: resourcePolicy
  78                 onAcquiredChanged: handlePipeline();
  79         }
  80
  81         Connections {
  82                 target: Qt.application
  83                 onActiveChanged: {
  84                         if (!Qt.application.active) {
  85                                 // This is a noop if camera is not
  86                                 // idle so calling it will not hurt
  87                                 if (cam.stop()) {
  88                                         resourcePolicy.acquire(CameraResources.None);
  89                                 }
  90                         }
  91                         else if (page.needsPipeline) {
  92                                 resourcePolicy.acquire(page.policyMode);
  93                         }
  94                 }
  95         }
  96
  97         Connections {
  98                 target: cam
  99                 onIdleChanged: {
 100                         if (cam.idle && !Qt.application.active) {
 101                                 cam.stop();
 102                                 resourcePolicy.acquire(CameraResources.None);
 103                         }
 104 /*
 105                         else if (cam.idle && !page.needsPipeline) {
 106                                 cam.stop();
 107                         }
 108 */
 109                 }
 110         }
 111
 112         Rectangle {
 113                 // TODO: color
 114                 // TODO: fade out transition
 115                 // TODO: there is a toolbar visible on the first startup
 116                 id: standby
 117                 color: "black"
 118                 anchors.fill: parent
 119                 visible: !Qt.application.active || !cam.running || !resourcePolicy.acquired
 120                 Image {
 121                         source: "image://theme/icon-l-camera-standby"
 122                         anchors.centerIn: parent
 123                 }
 124         }
 125
 126         property Camera cam: null
 127         property bool controlsVisible: cam.running && !standby.visible
 128
 129         anchors.fill: parent
 130
 131         property alias previewAnimationRunning: preview.animationRunning
 132
 133         function setPreview(image) {
 134                 preview.setPreview(image);
 135         }
 136
 137         ModeButton {
 138                 anchors.bottom: parent.bottom
 139                 anchors.right: parent.right
 140                 anchors.rightMargin: 20
 141                 anchors.bottomMargin: 20
 142                 visible: controlsVisible
 143         }
 144
 145         PreviewImage {
 146                 id: preview
 147         }
 148
 149         ZoomSlider {
 150                 id: zoom
 151                 camera: cam
 152                 anchors.top: parent.top
 153                 anchors.topMargin: 0
 154                 anchors.horizontalCenter: parent.horizontalCenter
 155                 visible: controlsVisible
 156         }
 157 }