1 /*

     2 * Copyright (c) 2009-2010 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 "cxegeotaggingtrail.h"

    29 #include "cxeviewfindercontrol.h"

    30 #include "cxuidisplaypropertyhandler.h"

    31 #include "cxuiview.h"

    32 

    33 

    34 class HbAction;

    35 class HbLabel;

    36 class HbSlider;

    37 class CxeEngine;

    38 class HbMainWindow;

    39 class CxuiSettingsInfo;

    40 class HbToolBarExtension;

    41 class CxuiDocumentLoader;

    42 class HbTransparentWindow;

    43 class CxuiCaptureKeyHandler;

    44 class CxuiCaptureKeyHandler;

    45 class CxuiSettingDialog;

    46 class CxuiSettingRadioButtonList;

    47 class CxuiSettingSlider;

    48 class HbToolBarExtension;

    49 class HbWidget;

    50 class CxuiZoomSlider;

    51 class CxuiFullScreenPopup;

    52 

    53 

    54 /**

    55  * Pre-capture view

    56  */

    57 class CxuiPrecaptureView : public CxuiView

    58 {

    59     Q_OBJECT

    60 

    61 public:

    62     CxuiPrecaptureView(QGraphicsItem *parent = 0);

    63 

    64     virtual ~CxuiPrecaptureView();

    65 

    66 public:

    67 

    68     virtual void construct(HbMainWindow *mainWindow,

    69                            CxeEngine *engine,

    70                            CxuiDocumentLoader *documentLoader,

    71                            CxuiCaptureKeyHandler *keyHandler,

    72                            HbActivityManager *activityManager);

    73 

    74     virtual bool isStandbyModeSupported() const;

    75     /**

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

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

    78     */

    79     virtual void loadWidgets() = 0;

    80 

    81 signals:

    82 

    83     /*!

    84     * Signal that view is ready to be used.

    85     */

    86     void viewReady();

    87 

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

    89     void changeToPostcaptureView();

    90     void changeToPrecaptureView();

    91 

    92     // Switching between cameras

    93     void switchCamera();

    94 

    95     // signals to start and stop standby timer

    96     void startStandbyTimer();

    97     void stopStandbyTimer();

    98 

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

   100     void errorEncountered(CxeError::Id id);

   101 

   102 public slots:

   103 

   104     void initCamera();

   105     void requestCameraSwitch();

   106 

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

   108     // connects to the settingValueChanged signal of CxeSettings

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

   110 

   111     void toolbarExtensionDisappearEffectFinished(const HbEffect::EffectStatus &status);

   112     void toolbarExtensionAppearEffectFinished(const HbEffect::EffectStatus &status);

   113 

   114     // From CxuiView

   115     virtual void enterStandby();

   116     virtual void exitStandby();

   117 

   118 protected slots:

   119 

   120     // Key events

   121     virtual void handleAutofocusKeyPressed();

   122 

   123     // Camera / Engine

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

   125     void handleZoomLevelChange(int);

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

   127     // UI: Zoom slider change notification

   128     void zoomTo(int value);

   129 

   130     void disableControlsTimeout();

   131 

   132     void toggleZoom();

   133 

   134     // Settings related

   135     void showSettingsGrid();

   136     void hideSettingsGrid();

   137     void launchSliderSetting();

   138     void prepareToShowDialog(HbAction *action);

   139     void prepareToCloseDialog(HbAction *action);

   140     void updateLocationIndicator(CxeGeoTaggingTrail::State newState, CxeError::Id error);

   141 

   142 private slots:

   143     void disableGeotaggingDisclaimer();

   144     void launchGeoTaggingSetting();

   145 

   146 protected:

   147     void toggleControls();

   148     virtual void initializeSettingsGrid() = 0;

   149     void showEvent(QShowEvent *event);

   150     void hideEvent(QHideEvent *event);

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

   152     void launchSettingsDialog(QObject *action);

   153     virtual bool isPostcaptureOn() const = 0;

   154     void addIncreaseDecreaseButtons(CxuiZoomSlider *slider);

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

   156     virtual void updateQualityIcon() = 0;

   157     virtual void updateSceneIcon(const QString& sceneId) = 0;

   158     void launchGeoTaggingDisclaimerDialog();

   159 

   160 private:

   161     CxuiSettingDialog* createSettingsDialog();

   162     CxuiSettingDialog* createSliderSettingsDialog();

   163     QPointF getDialogPosition();

   164 

   165 protected:

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

   167     CxuiDisplayPropertyHandler *mDisplayHandler;

   168     HbToolBarExtension *mSettingsGrid;

   169     bool mWidgetsLoaded;

   170     CxuiSettingDialog *mSettingsDialog;

   171     CxuiSettingRadioButtonList *mSettingsDialogList;

   172     HbLabel *mQualityIcon;

   173     HbLabel *mGeoTaggingIndicatorIcon;

   174     HbLabel *mFaceTrackingIcon;

   175     CxuiFullScreenPopup *mStandbyPopup;

   176 

   177 private:

   178     HbLabel *mSettingsDialogHeading;

   179 

   180     CxuiSettingDialog *mSliderSettingsDialog;

   181     HbLabel *mSliderSettingsDialogHeading;

   182     CxuiSettingSlider *mSettingsSlider;

   183 

   184     CxuiSettingsInfo *mSettingsInfo;

   185 

   186     HbAction *mSettingsDialogOkAction;

   187     HbAction *mSliderSettingsDialogOkAction;

   188 };

   189 

   190 #endif // CXUIPRECAPTUREVIEW_H