camerauis/cameraxui/cxui/src/cxuiview.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 11 Jun 2010 13:26:48 +0300
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child 36 b12f3922a74f
permissions -rw-r--r--
Revision: 201021 Kit: 2010123
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/*
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include <QGraphicsItem>
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#include <QProcess>
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#include <hbtoolbar.h>
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#include <hbnotificationdialog.h>
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#include <hbframeitem.h>
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#include "cxuiview.h"
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#include "cxutils.h"
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#include "cxeengine.h"
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#include "cxuidocumentloader.h"
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#include "cxuicapturekeyhandler.h"
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#include "cxecameradevicecontrol.h"
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#include "cxevideocapturecontrol.h"
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#include "cxuizoomslider.h"
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#include "cxezoomcontrol.h"
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// CONSTANTS
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const QString PhotosAppExe = "photos.exe";
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const QString VideosAppExe = "videoplayer.exe";
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/*!
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* Constructor
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*/
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CxuiView::CxuiView(QGraphicsItem *parent) :
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        HbView(parent),
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        mMainWindow(NULL),
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        mEngine(NULL),
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        mDocumentLoader(NULL),
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        mSlider(NULL),
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        mToolbar(NULL),
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        mIndicators(NULL),
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        mHideControlsTimeout(this)
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{
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    CX_DEBUG_IN_FUNCTION();
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}
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/*!
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* Destructor
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*/
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CxuiView::~CxuiView()
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{
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    CX_DEBUG_IN_FUNCTION();
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}
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/*!
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* CxuiView::construct
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*/
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void CxuiView::construct(HbMainWindow *mainWindow, CxeEngine *engine,
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                         CxuiDocumentLoader *documentLoader,
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                         CxuiCaptureKeyHandler * keyHandler)
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    //Minimum requirements to construct the view
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    CX_ASSERT_ALWAYS(mainWindow);
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    CX_ASSERT_ALWAYS(engine);
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    CX_ASSERT_ALWAYS(documentLoader);
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    mMainWindow = mainWindow;
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    mDocumentLoader = documentLoader;
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    mCaptureKeyHandler = keyHandler;
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    mEngine = engine;
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    // adjust the timer, and connect it to correct slot
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    connect(&mHideControlsTimeout, SIGNAL(timeout()), this, SLOT(hideControls()));
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    mHideControlsTimeout.setSingleShot(true);
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    mHideControlsTimeout.setInterval(CXUI_HIDE_CONTROLS_TIMEOUT);
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}
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/*!
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* CxuiView::updateOrientation
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*/
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void CxuiView::updateOrientation(Qt::Orientation orientation)
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    hideControls();
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    mMainWindow->setOrientation(orientation);
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    if (mToolbar) {
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        if (orientation == Qt::Horizontal) {
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            mToolbar->setOrientation(Qt::Vertical);
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        } else {
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            mToolbar->setOrientation(Qt::Horizontal);
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        }
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    }
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    CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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* Allow showing UI controls?
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* Default behaviour is that controls can be shown at any time.
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*/
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bool CxuiView::allowShowControls() const
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{
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    return true;
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}
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/*!
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* Toggle visibility of UI controls.
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*/
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void CxuiView::toggleControls()
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    if (mControlsVisible) {
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        hideControls();
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    } else {
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        showControls();
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    }
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    CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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* CxuiView::launchNotSupportedNotification
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* Show "not supported" notification.
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*/
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void CxuiView::launchNotSupportedNotification()
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    HbNotificationDialog::launchDialog("Notification", "Not supported yet");
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    CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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 * CxuiView::launchScenesView
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 */
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void CxuiView::launchScenesView()
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    hideControls();
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    emit showScenesView();
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    CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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 * CxuiView::launchPhotosApp
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 */
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void CxuiView::launchPhotosApp()
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{
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    QProcess::startDetached(PhotosAppExe);
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}
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/*!
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 * CxuiView::launchVideosApp
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 * Launching Videos application as a separate process
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 */
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void CxuiView::launchVideosApp()
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{
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    //Releasing cameda device in order to free
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    //graphical memory
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    releaseCamera();
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    QProcess::startDetached(VideosAppExe);
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}
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/*!
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 * Releasing camera hw
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 */
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void CxuiView::releaseCamera()
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    mEngine->cameraDeviceControl().release();
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    CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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 * CxuiView::hideControls
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 */
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void CxuiView::hideControls()
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    if (mHideControlsTimeout.isActive()) {
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        mHideControlsTimeout.stop();
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    }
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    // Hide title bar and status bar.
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    //!@todo: View flags property is missing from HbView, so can't set these in DocML.
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    HbView::HbViewFlags flags(HbView::ViewTitleBarTransparent
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                            | HbView::ViewTitleBarFloating
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                            | HbView::ViewTitleBarHidden
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                            | HbView::ViewStatusBarTransparent
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                            | HbView::ViewStatusBarFloating
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                            | HbView::ViewStatusBarHidden);
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    setViewFlags(flags);
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    //!@todo: Once the flags are defined in DocML, we can just use these convenience functions
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    //        to hide the title bar and status bar here.
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    //setTitleBarVisible(false);
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    //setStatusBarVisible(false);
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    hideZoom();
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    hideToolbar();
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    // show indicators when controls are hidden
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    showIndicators();
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    mControlsVisible = false;
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    // give the keyboard focus back to the view
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    // for the view to receive key events
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    setFocus();
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   221
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    CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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 * CxuiView::showControls
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 */
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void CxuiView::showControls()
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{
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    if (allowShowControls()) {
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        // show toolbar
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        showToolbar();
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        // show zoom
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        showZoom();
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        // show title bar and status bar
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        setTitleBarVisible(true);
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        setStatusBarVisible(true);
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        // hide indicators when controls are shown
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        hideIndicators();
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        mHideControlsTimeout.start();
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        mControlsVisible = true;
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    }
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}
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/*!
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 * CxuiView::hideToolbar
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 */
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void CxuiView::hideToolbar()
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    if (mToolbar) {
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        mToolbar->hide();
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    }
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    CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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 * CxuiView::showToolbar
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 */
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void CxuiView::showToolbar()
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    if (mToolbar) {
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        mToolbar->show();
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    }
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    CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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 * CxuiView::hideIndicators
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 */
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void CxuiView::hideIndicators()
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{
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    if (mIndicators) {
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        mIndicators->hide();
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    }
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}
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/*!
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 * CxuiView::showIndicators
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 */
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void CxuiView::showIndicators()
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{
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    if (mIndicators) {
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        mIndicators->show();
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    }
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}
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/*!
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 * CxuiView::hideZoom
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 */
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void CxuiView::hideZoom()
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{
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    if (mSlider) {
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        mSlider->hide();
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    }
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    mZoomVisible = false;
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}
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/*!
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 * CxuiView::showZoom
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 */
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void CxuiView::showZoom()
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{
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    CX_DEBUG_ENTER_FUNCTION();
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    if (mSlider) {
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        // if maxVal has not been set yet, ask for new parameters from engine
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        if (mSlider->maximum() <= 0) {
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            // get the zoom range
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            int min = mEngine->zoomControl().min();
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            int max = mEngine->zoomControl().max();
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            // only change values if they are acceptable and have changed
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            if ((max - min > 0) && ((mSlider->maximum() != max) || (mSlider->minimum() != min))) {
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                mSlider->setRange(min, max);
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            }
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        }
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        // show zoom only if the slider has acceptable value
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        if (mSlider->maximum() > 0) {
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            mSlider->show();
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        }
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    }
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    mZoomVisible = true;
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    CX_DEBUG_EXIT_FUNCTION();
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}
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   334
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/*!
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* Function can be used to create a graphics item and setting it as a background
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* item for HbWidget. graphicName refers to system wide graphic name. Given graphic
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* can consist of one, three or nine pieces. Nine piece graphics are used by default.
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* See HbFrameDrawer documentation for graphic naming.
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*/
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void CxuiView::createWidgetBackgroundGraphic(HbWidget *widget,
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                                                       const QString &graphicName,
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                                                       HbFrameDrawer::FrameType frameType)
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{
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    if (widget) {
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        HbFrameDrawer *drawer = new HbFrameDrawer(graphicName, frameType);
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        if (drawer) {
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            HbFrameItem *backgroundItem = new HbFrameItem(drawer, widget);
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            if (backgroundItem) {
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                // set item to fill the whole widget
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                backgroundItem->setGeometry(QRectF(QPointF(0, 0), widget->size()));
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                backgroundItem->setZValue(0);
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                widget->setBackgroundItem(backgroundItem);
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            }
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        }
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    }
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}
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// End of file