camerauis/cameraxui/cxui/inc/cxuiprecaptureview.h
changeset 19 d9aefe59d544
child 21 fa6d9f75d6a6
child 28 3075d9b614e6
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraxui/cxui/inc/cxuiprecaptureview.h	Fri Apr 16 14:51:30 2010 +0300
@@ -0,0 +1,197 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+#ifndef CXUIPRECAPTUREVIEW_H
+#define CXUIPRECAPTUREVIEW_H
+
+#include <QObject>
+#include <QTimer>
+#include <QList>
+#include <hbview.h>
+#include <hbradiobuttonlist.h>
+#include <hbframedrawer.h>
+
+#include "cxezoomcontrol.h"
+#include "cxeviewfindercontrol.h"
+#include "cxuidisplaypropertyhandler.h"
+
+
+class HbAction;
+class HbLabel;
+class HbSlider;
+class CxeEngine;
+class HbMainWindow;
+class CxuiSettingsInfo;
+class HbToolBarExtension;
+class CxuiDocumentLoader;
+class HbTransparentWindow;
+class CxuiCaptureKeyHandler;
+class CxuiCaptureKeyHandler;
+class CxuiSettingDialog;
+class CxuiSettingRadioButtonList;
+class CxuiSettingSlider;
+class HbToolBarExtension;
+
+/**
+ * Pre-capture view
+ */
+class CxuiPrecaptureView : public HbView
+{
+    Q_OBJECT
+
+public:
+    CxuiPrecaptureView(QGraphicsItem *parent = 0);
+
+    virtual ~CxuiPrecaptureView();
+
+public:
+
+    /**
+     * Construct-method handles initialisation tasks for this class.
+     * @param mainwindow
+     * @param engine
+     * @param documentLoader
+     * @param keyHandler
+     */
+    virtual void construct(HbMainWindow *mainWindow, CxeEngine *engine,
+                           CxuiDocumentLoader *documentLoader,
+                           CxuiCaptureKeyHandler *keyHandler);
+
+    /**
+     * Loads widgets that are not part of the default section in layouts xml.
+     * Widgets are created at the time they are first loaded.
+     */
+    virtual void loadWidgets() = 0;
+    void prepareWindow();
+    virtual void updateOrientation(Qt::Orientation orient) = 0;
+
+public slots:
+
+    void releaseCamera();
+    void initCamera();
+    void requestCameraSwitch();
+
+    // whenever a setting is changed on the engine side, an icon might need updating
+    // connects to the settingValueChanged signal of CxeSettings
+    virtual void handleSettingValueChanged(const QString& key, QVariant newValue);
+
+protected slots:
+
+    // Key events
+    virtual void handleAutofocusKeyPressed();
+
+    // Camera / Engine
+    void handleEngineZoomStateChange(CxeZoomControl::State newState, CxeError::Id error);
+    void handleZoomLevelChange(int);
+    void handleVfStateChanged(CxeViewfinderControl::State newState, CxeError::Id error);
+    virtual void handleFocusGained();
+    virtual void handleFocusLost() = 0;
+    // UI: Zoom slider change notification
+    void zoomTo(int value);
+
+    // Control visibility of all UI items at the same time: toolbar, zoom and titlepane items
+    void hideControls();
+    virtual void showControls();
+    void toggleControls();
+
+    void disableControlsTimeout();
+
+    void toggleZoom();
+    void hideToolbar();
+
+    void launchPhotosApp();
+    void launchVideosApp();
+
+    // Settings related
+    void launchNotSupportedNotification();
+    void showSettingsGrid();
+    void hideSettingsGrid();
+    void launchSliderSetting();
+    void prepareToShowDialog(HbAction *action);
+    void prepareToCloseDialog(HbAction *action);
+
+
+protected:
+
+   virtual void initializeSettingsGrid() = 0;
+
+    void hideZoom();
+    void showZoom();
+    void showEvent(QShowEvent *event);
+    void hideEvent(QHideEvent *event);
+    void mousePressEvent(QGraphicsSceneMouseEvent *event);
+    virtual void showToolbar();
+    bool eventFilter(QObject *object, QEvent *event);
+    void launchSettingsDialog(QObject *action);
+    bool isPostcaptureOn() const;
+    void addIncreaseDecreaseButtons(HbSlider *slider);
+    QString getSettingItemIcon(const QString &key, QVariant value);
+    void updateQualityIcon();
+    void createWidgetBackgroundGraphic(HbWidget *widget,
+                                       const QString &graphicName,
+                                       HbFrameDrawer::FrameType frameType =
+                                       HbFrameDrawer::NinePieces);
+
+signals:
+
+    // signals to switch to post/pre-capture view.
+    void changeToPostcaptureView();
+    void changeToPrecaptureView();
+
+    // Switching between cameras
+    void switchCamera();
+
+    // signals to start and stop standby timer
+    void startStandbyTimer();
+    void stopStandbyTimer();
+
+    // signal to report error to ErrorManager for further actions.
+    void reportError(CxeError::Id errorId);
+
+protected:
+    CxeEngine *mEngine; // not own
+    HbTransparentWindow *mViewfinder; // not own, owned by the graphics scene
+    HbMainWindow *mMainWindow; // not own
+    CxuiDocumentLoader *mDocumentLoader; // not own
+    CxuiDisplayPropertyHandler *mDisplayHandler;
+    bool   mControlsVisible;
+    QTimer mHideControlsTimeout;
+    HbSlider *mSlider; // zoom slider, not own, owned by the graphics scene
+    HbToolBar *mToolBar; // not own, owned by the graphics scene
+    HbToolBarExtension *mSettingsGrid;
+    bool mZoomVisible;
+    bool mWidgetsLoaded;
+    CxuiSettingDialog *mSettingsDialog;
+    CxuiSettingRadioButtonList *mSettingsDialogList;
+    CxuiCaptureKeyHandler *mKeyHandler;
+    HbLabel *mQualityIcon;
+
+private:
+    CxuiSettingDialog* createSettingsDialog();
+    CxuiSettingDialog* createSliderSettingsDialog();
+    QPointF getDialogPosition();
+private:
+    HbLabel *mSettingsDialogHeading;
+
+    CxuiSettingDialog *mSliderSettingsDialog;
+    HbLabel *mSliderSettingsDialogHeading;
+    CxuiSettingSlider *mSettingsSlider;
+
+    CxuiSettingsInfo *mSettingsInfo;
+
+};
+
+#endif // CXUIPRECAPTUREVIEW_H