1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 #ifndef CXUIPRECAPTUREVIEW_H

    18 #define CXUIPRECAPTUREVIEW_H

    19 

    20 #include <QObject>

    21 #include <QTimer>

    22 #include <QList>

    23 #include <hbview.h>

    24 #include <hbradiobuttonlist.h>

    25 #include <hbframedrawer.h>

    26 

    27 #include "cxezoomcontrol.h"

    28 #include "cxeviewfindercontrol.h"

    29 #include "cxuidisplaypropertyhandler.h"

    30 

    31 

    32 class HbAction;

    33 class HbLabel;

    34 class HbSlider;

    35 class CxeEngine;

    36 class HbMainWindow;

    37 class CxuiSettingsInfo;

    38 class HbToolBarExtension;

    39 class CxuiDocumentLoader;

    40 class HbTransparentWindow;

    41 class CxuiCaptureKeyHandler;

    42 class CxuiCaptureKeyHandler;

    43 class CxuiSettingDialog;

    44 class CxuiSettingRadioButtonList;

    45 class CxuiSettingSlider;

    46 class HbToolBarExtension;

    47 

    48 /**

    49  * Pre-capture view

    50  */

    51 class CxuiPrecaptureView : public HbView

    52 {

    53     Q_OBJECT

    54 

    55 public:

    56     CxuiPrecaptureView(QGraphicsItem *parent = 0);

    57 

    58     virtual ~CxuiPrecaptureView();

    59 

    60 public:

    61 

    62     /**

    63      * Construct-method handles initialisation tasks for this class.

    64      * @param mainwindow

    65      * @param engine

    66      * @param documentLoader

    67      * @param keyHandler

    68      */

    69     virtual void construct(HbMainWindow *mainWindow, CxeEngine *engine,

    70                            CxuiDocumentLoader *documentLoader,

    71                            CxuiCaptureKeyHandler *keyHandler);

    72 

    73     /**

    74      * Loads widgets that are not part of the default section in layouts xml.

    75      * Widgets are created at the time they are first loaded.

    76      */

    77     virtual void loadWidgets() = 0;

    78     void prepareWindow();

    79     virtual void updateOrientation(Qt::Orientation orient) = 0;

    80 

    81 public slots:

    82 

    83     void releaseCamera();

    84     void initCamera();

    85     void requestCameraSwitch();

    86 

    87     // whenever a setting is changed on the engine side, an icon might need updating

    88     // connects to the settingValueChanged signal of CxeSettings

    89     virtual void handleSettingValueChanged(const QString& key, QVariant newValue);

    90 

    91 protected slots:

    92 

    93     // Key events

    94     virtual void handleAutofocusKeyPressed();

    95 

    96     // Camera / Engine

    97     void handleEngineZoomStateChange(CxeZoomControl::State newState, CxeError::Id error);

    98     void handleZoomLevelChange(int);

    99     void handleVfStateChanged(CxeViewfinderControl::State newState, CxeError::Id error);

   100     virtual void handleFocusGained();

   101     virtual void handleFocusLost() = 0;

   102     // UI: Zoom slider change notification

   103     void zoomTo(int value);

   104 

   105     // Control visibility of all UI items at the same time: toolbar, zoom and titlepane items

   106     void hideControls();

   107     virtual void showControls();

   108     void toggleControls();

   109 

   110     void disableControlsTimeout();

   111 

   112     void toggleZoom();

   113     void hideToolbar();

   114 

   115     void launchPhotosApp();

   116     void launchVideosApp();

   117 

   118     // Settings related

   119     void launchNotSupportedNotification();

   120     void showSettingsGrid();

   121     void hideSettingsGrid();

   122     void launchSliderSetting();

   123     void prepareToShowDialog(HbAction *action);

   124     void prepareToCloseDialog(HbAction *action);

   125 

   126 

   127 protected:

   128 

   129    virtual void initializeSettingsGrid() = 0;

   130 

   131     void hideZoom();

   132     void showZoom();

   133     void showEvent(QShowEvent *event);

   134     void hideEvent(QHideEvent *event);

   135     void mousePressEvent(QGraphicsSceneMouseEvent *event);

   136     virtual void showToolbar();

   137     bool eventFilter(QObject *object, QEvent *event);

   138     void launchSettingsDialog(QObject *action);

   139     bool isPostcaptureOn() const;

   140     void addIncreaseDecreaseButtons(HbSlider *slider);

   141     QString getSettingItemIcon(const QString &key, QVariant value);

   142     void updateQualityIcon();

   143     void createWidgetBackgroundGraphic(HbWidget *widget,

   144                                        const QString &graphicName,

   145                                        HbFrameDrawer::FrameType frameType =

   146                                        HbFrameDrawer::NinePieces);

   147 

   148 signals:

   149 

   150     // signals to switch to post/pre-capture view.

   151     void changeToPostcaptureView();

   152     void changeToPrecaptureView();

   153 

   154     // Switching between cameras

   155     void switchCamera();

   156 

   157     // signals to start and stop standby timer

   158     void startStandbyTimer();

   159     void stopStandbyTimer();

   160 

   161     // signal to report error to ErrorManager for further actions.

   162     void reportError(CxeError::Id errorId);

   163 

   164 protected:

   165     CxeEngine *mEngine; // not own

   166     HbTransparentWindow *mViewfinder; // not own, owned by the graphics scene

   167     HbMainWindow *mMainWindow; // not own

   168     CxuiDocumentLoader *mDocumentLoader; // not own

   169     CxuiDisplayPropertyHandler *mDisplayHandler;

   170     bool   mControlsVisible;

   171     QTimer mHideControlsTimeout;

   172     HbSlider *mSlider; // zoom slider, not own, owned by the graphics scene

   173     HbToolBar *mToolBar; // not own, owned by the graphics scene

   174     HbToolBarExtension *mSettingsGrid;

   175     bool mZoomVisible;

   176     bool mWidgetsLoaded;

   177     CxuiSettingDialog *mSettingsDialog;

   178     CxuiSettingRadioButtonList *mSettingsDialogList;

   179     CxuiCaptureKeyHandler *mKeyHandler;

   180     HbLabel *mQualityIcon;

   181 

   182 private:

   183     CxuiSettingDialog* createSettingsDialog();

   184     CxuiSettingDialog* createSliderSettingsDialog();

   185     QPointF getDialogPosition();

   186 private:

   187     HbLabel *mSettingsDialogHeading;

   188 

   189     CxuiSettingDialog *mSliderSettingsDialog;

   190     HbLabel *mSliderSettingsDialogHeading;

   191     CxuiSettingSlider *mSettingsSlider;

   192 

   193     CxuiSettingsInfo *mSettingsInfo;

   194 

   195 };

   196 

   197 #endif // CXUIPRECAPTUREVIEW_H