/*******************************************************************************

 * Copyright (c) 2005, 2010 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved. This program and the accompanying materials

 * are made available under the terms of the Eclipse Public License v1.0

 * which accompanies this distribution, and is available at

 * http://www.eclipse.org/legal/epl-v10.html

 *

 * Contributors:

 *     Nokia Corporation - S60 implementation

 *******************************************************************************/

#ifndef SWTLISTVIEW_H

#define SWTLISTVIEW_H

#include <eiklbo.h>

#include "eswtmobileextensions.h"

#include "swtscrollablebase.h"

#include "swtscrollbar.h"

class CAknIconArray;

class CSelectionIndexArray;

class CSwtGrid;

class CAknGridM;

class CAknGridView;

class CSwtControlMenu;

class CSwtMenu;

class CSwtMenuItem;

/**

 * CSwtListView

 * This class implements the eSWT ListView on S60 platform

 * @lib eswt

 */

NONSHARABLE_CLASS(CSwtListView)

        : public CAknControl

        , public ASwtScrollableBase

        , public MSwtListView

        , public MEikCommandObserver

        , public MEikListBoxObserver

{

public:

    static CSwtListView* NewL(MSwtDisplay& aDisplay, TSwtPeer aPeer,

    MSwtComposite& aParent, TInt aStyle);

    static CSwtListView* NewLC(MSwtDisplay& aDisplay, TSwtPeer aPeer,

                               MSwtComposite& aParent, TInt aStyle);

    virtual ~CSwtListView();

    void ScrollViewToShowAsManyItemsAsPossibleL();

    TInt ScrollBarBreadth(const CEikScrollBar* aBar);

// From CCoeControl

    CCoeControl*    ComponentControl(TInt aIndex) const;

    TInt            CountComponentControls() const;

    void            SizeChanged();

    void            PositionChanged();

    void            HandleResourceChange(TInt aType);

    void            FocusChanged(TDrawNow aDrawNow);

    TKeyResponse    OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType);

    void            MakeVisible(TBool aVisible);

    void            SetDimmed(TBool aDimmed);

    TTypeUid::Ptr   MopSupplyObject(TTypeUid aId);

private:

    void            Draw(const TRect& aRect) const;

// From MSwtListView

public:

    MSwtScrollable* Scrollable();

    void            AppendL(const TDesC& aPtr, const MSwtImage* aImage);

    void            InsertL(TInt aPos, const TDesC& aPtr, const MSwtImage* aImage);

    void            DeselectItem(TInt aIndex);

    void            DeselectRange(TInt aStart, TInt aEnd);

    void            DeselectItems(const TInt* aIndices, TInt aCount);

    void            DeselectAll();

    TInt            GetFocusIndex() const;

    void            GetItemL(TInt aItemIndex, TPtrC& aString) const;

    TPoint          GetIconSize(TInt aStyle) const;

    TInt            GetItemCount() const;

    CPtrCArray*     GetItemsL() const;

    CPtrCArray*     GetSelectionL() const;

    TInt            GetSelectionCount() const;

    const           CArrayFix<TInt>* GetSelectionIndices() const;

    TInt            GetTopIndex() const;

    TInt            IndexOf(const TDesC& aString, TInt& aStart) const;

    TBool           IsSelected(TInt aIndex) const;

    void            RemoveItemL(TInt aIndex);

    void            RemoveRangeL(TInt aStart, TInt aEnd);

    void            RemoveItemsL(const TInt* aIndices, TInt aCount);

    void            RemoveAllL();

    void            SelectItemL(TInt aIndex, TBool aScroll);

    void            SelectRangeL(TInt aStart, TInt aEnd);

    void            SelectAllL();

    void            SetItemsL(MDesCArray* aStringArray, RPointerArray<MSwtImage>& aImagesArray);

    void            SetLayoutL(TInt aLayout);

    void            SetLayoutDensityL(TInt aDensity);

    void            ShowSelection();

    void            SetFocusIndex(TInt aIndex);

// From ASwtScrollableBase

    CEikScrollBarFrame* SbFrame() const;

    void SetVisibleScrollBar(TInt aStyle, TBool aVisible);

    void ScrollBarDestroyed(const MSwtScrollBar* aScrollBar);

#if defined( RD_SCALABLE_UI_V2)

    void HandleScrollEventL(CEikScrollBar* aScrollBar,

                            TEikScrollEvent aEventType);

#endif

// From MSwtControl

    CCoeControl&    CoeControl();

    const           CCoeControl& CoeControl() const;

    void            ProcessKeyEventL(const TKeyEvent& aKeyEvent, TEventCode aType);

    TRgb            GetBackground() const;

    TRgb            GetForeground() const;

    void            SetBackgroundL(const MSwtColor* aColor);

    void            SetForegroundL(const MSwtColor* aColor);

    TSize           ComputeSizeL(TInt aWHint, TInt aHHint);

    TBool           IsKeyUsed(TUint aKeyCode) const;

    TBool           MSKSelCmdEnabled() const;

    const MSwtMenu* GetControlMenu() const;

    void            UpdateDoNotDrawFlag();

    HBufC*          MSKLabelL() const;

#if defined( RD_SCALABLE_UI_V2)

    void            HandlePointerEventL(const TPointerEvent& aPointerEvent);

    const MSwtMenu* GetStylusPopupControlMenu() const;

#endif

#ifdef RD_JAVA_S60_RELEASE_9_2

    void            EnableFocusHighlight(TBool aEnable);

#endif //RD_JAVA_S60_RELEASE_9_2

    TInt            FocusBackgroundPolicy() const;

// From MEikCommandObserver

public:

    void ProcessCommandL(TInt aCmdId);

// From MEikListBoxObserver

public:

    void HandleListBoxEventL(CEikListBox* aListBox, TListBoxEvent aEventType);

// Own methods

private:

    CSwtListView(MSwtDisplay& aDisplay, TSwtPeer aPeer, MSwtComposite& aParent, TInt aStyle);

    void ConstructL();

    enum TSwtListViewDensity

    {

        ELowListViewDensity     = 1,

        EMediumListViewDensity  = 2,

        EHighListViewDensity    = 3

    };

    void            ApplyGridCellLayoutL();

    CDesCArray*     GetTextArray() const;

    CAknIconArray*  GetIconArray() const;

    CAknGridM*      GetGridModel() const;

    CAknGridView*   GetGridView() const;

    CGulIcon*       CreateIconL(const MSwtImage* aIcon) const;

    void            DoGridCellLayoutL(const TSwtListViewDensity& aDensity);

    void            LoadLayouts(const TSwtListViewDensity& aDensity, TSize& aCellSize,

                                TRect& aIconRect, TRect& aSelRect, TRect& aTextRect,

                                TInt& aTextCellFontId);

    void            CalcRowsColumns(const TSize& aCellSize, TInt& aXCells, TInt& aYCells) const;

    void            AddTextL(const TDesC& aPtr, const TInt& aPos);

    void            AddIconL(const MSwtImage* aImage, const TInt& aPos);

    void            AddItemL(const TDesC& aPtr, const MSwtImage* aImage, const TInt& aPos);

    void            UpdateIconIndexL(const TInt& arrayIndex);

    void            UpdateSelectionIndexesL(TInt aStart, TInt aEnd, TBool aItemsAdded);

    void            UntabifyL(RBuf& aAll);

    TInt            GetCaption(const TInt& aIndex, TPtrC& aTxt) const;

    void            SingleSelectL(const TInt& aIndex, TBool aScroll);

    void            SingleOrMultiSelectL(const TInt& aIndex, TBool aScroll);

    void            UpdateTextColorL();

    CGulIcon*       GetMarkedItemIconL();

    void            HandleResourceChangeL(TInt aType);

    void            SizeChangedL();

    TInt            ItemIconIndex(const TInt& aItemPos);

    void            UpdateControlMenu();

    TInt            GetBorderSize(const TInt& aAlignment) const;

    TSize           GetCellSize() const;

    TUint           ISqrt(TUint x);

    TInt            GetRowColumnCount(const TInt& aItemCount, const TInt& aRowColumnCount) const;

    void            UpdateMSKLabelL();

    void            LayoutCell(const TRect& aCellRect, TRect& aTextRect, TRect& aIconRect, TRect& aSelRect);

    void            UpdateSetItemCount(const TInt& textChange, const TInt& iconChange);

    void            DoGridCellLayoutIfNeededL();

    void            UpdateRemovedItemCountersL(const TInt& aIndex);

    void            GetSelection(CArrayFix<TInt>* aSelectionArray) const;

    TInt            GetSelectionL(const TInt aIndex) const;

    void            SetSelectionL(const CArrayFix<TInt>* aSelectionArray) const;

    void            UpdateImageSizes(const TSize& aNewMaxSize);

    void            RemoveImageRef(const TInt& aIndex);

    void            GetCellVariants(const TSwtListViewDensity& aDensity,

                                    TInt& aCellVariant, TInt& aSubcellVariantG1,

                                    TInt& aSubcellVariantG2, TInt& aSubcellVariantT) const;

    void            UpdateIconSizes(const TSwtListViewDensity& aDensity,

                                    const TRect& aCellRect);

    void            GetLafFacadeRectIds(

        const TSwtListViewDensity& aDensity,

        CSwtLafFacade::TSwtLafFacadeRectId& aRectIdPane,

        CSwtLafFacade::TSwtLafFacadeRectId& aRectIdPaneG1,

        CSwtLafFacade::TSwtLafFacadeRectId& aRectIdPaneG2,

        CSwtLafFacade::TSwtLafFacadeTextId& aRectIdPaneT1,

        CSwtLafFacade::TSwtLafFacadeFontId& aRectIdPaneT1Font

    ) const;

    void            CoerceCellRect(const TSwtListViewDensity& aDensity,

                                   TRect& aCellRect) const;

    void            UpdateFlickScrollingState(TListBoxEvent aEventType);

#ifdef RD_JAVA_ADVANCED_TACTILE_FEEDBACK

public:

    void DoControlSpecificFeedback(

        const TBool& aFirstTap,

        const TBool& aTappedToChildRect,

        const TPointerEvent& aPointerEvent) const;

#endif //RD_JAVA_ADVANCED_TACTILE_FEEDBACK

private: // data

    /**

     * Cell layout params for the grid.

     */

    TBool   iVerticalOrientation;

    TBool   iLeftToRight;

    TBool   iTopToBottom;

    TInt    iNumOfRows;

    TInt    iNumOfColumns;

    TInt    iWidthOfSpaceBetweenItems;

    TInt    iHeightOfSpaceBetweenItems;

    /**

     * The current density.

     */

    TSwtListViewDensity iDensity;

    /**

     * Icon sizes for getIconSize

     */

    TPoint iIconSizeInLowDensity;

    TPoint iIconSizeInMediumDensity;

    TPoint iIconSizeInHighDensity;

    /**

     * Number of non-NULL icons and texts

     */

    TInt iNumberOfTexts;

    TInt iNumberOfIcons;

    /**

     * The control menu.

     * Owned.

     */

    CSwtControlMenu* iMenu;

    /**

     * The control menu submenu.

     * Owned.

     */

    CSwtControlMenu* iSubMenu;

    /**

    * The control menu items.

    * Owned.

    */

    CSwtMenuItem* iMenuItemEditList;

    CSwtMenuItem* iMenuItemMarkUnmark;

    CSwtMenuItem* iMenuItemMarkAll;

    CSwtMenuItem* iMenuItemUnmarkAll;

    /**

     * The strings for mark/unmark command and its state.

     */

    TBool iIsMarkDisplayed;

    HBufC* iMarkString;

    HBufC* iUnmarkString;

    /**

     * The Selection array before a key event, for multiselection only.

     * Own.

     */

    CArrayFix<TInt>* iOldSelectionArray;

    /**

     * The Selection array for handling selection indexes with mirrored layout.

     * Own.

     */

    CArrayFix<TInt>* iSelectionArray;

    /**

     * The colors used to draw text and background.

     * Not own.

     */

    const MSwtColor* iTextColor;

    const MSwtColor* iBgColor;

    /**

     * Referenced images as the ListView does not copy the bitmaps it uses.

     */

    RPointerArray<const MSwtImage> iRefImages;

    /**

     * Maximum image size for the current layout.

     */

    TSize iMaxImageSize;

    /**

     * The grid control.

     * Own.

     */

    CSwtGrid* iGrid;

    /**

     * Deliver all pointer event to the scrollbar when this on.

     */

    TBool iVScrollBarGrabsPointerEvents;

#ifdef RD_SCALABLE_UI_V2

    /**

     * The control menu for stylus popup.

     * Owned.

     */

    CSwtControlMenu* iStylusPopupMenu;

    /**

     * The control menu items fro stylus popup.

     * Owned.

     */

    CSwtMenuItem* iStylusPopupMarkAll;

    CSwtMenuItem* iStylusPopupUnmarkAll;

#endif //RD_SCALABLE_UI_V2    

    /**

     * Stores last known focus index. Use only during paint and key handlers.

     */

    TInt iPrevFocusIndex;

    /**

     * Stores grid cell layout update status

     */

    TBool iIsGridCellLayoutNeeded;

    /**

     * View visible rect at last draw

     */

    mutable TRect iLastViewVisibleRect;

    /**

     * True when list is flick scrolling

     */

    TBool iFlickScrollingOngoing;

    /**

     * True when pointer events on scrollbar should be delivered to listbox

     */

    TBool iScrollbarPointerEventToListbox;

};

#endif // SWTLISTVIEW_H