cgit.sxemacs.org Git - harmattan/cameraplus/blob - qml/ZoomCaptureButton.qml

   1 // -*- qml -*-
   2
   3 /*!
   4  * This file is part of CameraPlus.
   5  *
   6  * Copyright (C) 2012-2013 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 CameraPlus 1.0
  26
  27 Item {
  28         id: zoomHandler
  29         property Item page
  30         property bool zoomPressed: false
  31
  32         signal pressed();
  33         signal released();
  34
  35         property bool active: settings.zoomAsShutter && page.status == PageStatus.Active && Qt.application.active
  36
  37         function handlePress() {
  38                 if (!zoomHandler.active || zoomHandler.zoomPressed) {
  39                         return;
  40                 }
  41
  42                 zoomHandler.zoomPressed = true;
  43                 zoomHandler.pressed();
  44         }
  45
  46         function handleRelease() {
  47                 if (!zoomHandler.active || !zoomHandler.zoomPressed) {
  48                         return;
  49                 }
  50
  51                 zoomHandler.zoomPressed = false;
  52
  53                 zoomHandler.released();
  54         }
  55
  56         Connections {
  57                 id: zoomConnection
  58                 target: keys
  59
  60                 onActiveChanged: {
  61                         if (!zoomConnection.active) {
  62                                 zoomHandler.zoomPressed = false;
  63                         }
  64                 }
  65
  66                 onVolumeUpPressed: zoomHandler.handlePress();
  67                 onVolumeDownPressed: zoomHandler.handlePress();
  68                 onVolumeUpReleased: zoomHandler.handleRelease();
  69                 onVolumeDownReleased: zoomHandler.handleRelease();
  70         }
  71
  72         Connections {
  73                 target: Qt.application
  74                 onActiveChanged: {
  75                         if (!Qt.application.active) {
  76                                 zoomHandler.zoomPressed = false;
  77                         }
  78                 }
  79         }
  80 }