/*

* Copyright (c) 2005-2005 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:  Implementation for insertion point

*

*/

#include "peninputlayoutcursor.h"

#include "peninputlayouteditareabase.h"

#include "peninputlayouttimer.h"

#include "peninputlayoutrootctrl.h"

const TInt KDefaultCursorHeight = 10;

// ============================ MEMBER FUNCTIONS =============================

// ---------------------------------------------------------------------------

// CFepUiCursor::CFepUiCursor

// C++ default constructor can NOT contain any code, that might leave

// ---------------------------------------------------------------------------

//

CFepUiCursor::CFepUiCursor(const TRect& aRect,CFepUiLayout* aUiLayout,TInt aId)

                :CFepUiBaseCtrl(aRect,aUiLayout,aId),

                iPosition(0, 0),

                 iHeight(KDefaultCursorHeight),

                 iIsOn(EFalse),

                 iIsVisible(EFalse),

                 //iEditor(aOwner),

                 //iBitmapDevice(aBitmapDevice),

                 //iGc(aGc),

                 iCursorTempDisabled(EFalse)

    {

    SetControlType(ECtrlCursor);

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::ConstructL

// Symbian 2nd phase constructor can leave.

// ---------------------------------------------------------------------------

//

void CFepUiCursor::ConstructL()

    {

    CFepUiBaseCtrl::BaseConstructL();

    iCursorBlinkingTimer = CPeriodic::NewL(CActive::EPriorityStandard);

    iRestoreCursorTimer = CLayoutTimer::NewL(this,CLayoutTimer::EOthers);

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::NewL

// Two-phased constructor.

// ---------------------------------------------------------------------------

//

CFepUiCursor* CFepUiCursor::NewL(const TRect& aRect,CFepUiLayout* aUiLayout,TInt aId)

    {

    CFepUiCursor* self = new(ELeave) CFepUiCursor(aRect, aUiLayout,aId);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self); // insertionPoint

    return self;

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::~CFepUiCursor

// Destructor

// ---------------------------------------------------------------------------

//

CFepUiCursor::~CFepUiCursor()

    {

    if(iCursorBlinkingTimer)

        {        

        iCursorBlinkingTimer->Cancel();

        delete iCursorBlinkingTimer;

        }    

    delete iRestoreCursorTimer;

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::SetPosition

// Sets the position of the sprite if it has been turned on

// (other items were commented in a header).

// ---------------------------------------------------------------------------

//

EXPORT_C void CFepUiCursor::SetPosition(const TPoint& aPosition)

    {

    TBool isOn = iIsOn;

    if (isOn)

        {

        SetOn(EFalse);

        }

    iPosition=aPosition;

    TPoint correction(KCursorPosCorrectionX,KCursorPosCorrectionY );

    TRect rect = TRect(iPosition + correction , TSize(KCursorWidth,iHeight));

    if(rect != iCursorRect)

        {

        SetRect(rect);

        iCursorRect = rect;

        //must update clip region again.

        for(TInt i = 0 ; i < RootControl()->PopCtrlList().Count(); ++i)

            {

            UpdateValidRegion(RootControl()->PopCtrlList()[i],EFalse);

            }

        }

    if (isOn)

        {

        SetOn(ETrue);

        }

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::Position

// get the cursor position

// ---------------------------------------------------------------------------

//

EXPORT_C TPoint CFepUiCursor::Position()

    {

    return iPosition;

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::SetLayoutOwner

// Sets the layout owner

// (other items were commented in a header).

// ---------------------------------------------------------------------------

//

/*void CFepUiCursor::SetLayoutOwner(MLayoutOwner* aOwner)

    {

    iLayoutOwner = aOwner;

    }

*/

// ---------------------------------------------------------------------------

// CFepUiCursor::SetOn

// Turns the sprite on and off

// (other items were commented in a header).

// ---------------------------------------------------------------------------

//

EXPORT_C void CFepUiCursor::SetOn(TBool aOn, TBool aImmediately)

    {

    //aOn = EFalse;

    iIsOn = aOn;    

    // If cursor will bee set off and timer is active, Cancel timer

    if ( !iIsOn )

        {

        CancelDelayCursorShown();

        if ( iCursorBlinkingTimer->IsActive())

            {

            iCursorBlinkingTimer->Cancel();    

            }

        }

    else

        {

        if(iCursorTempDisabled)

            {

            return;

            }

        // Activate blinking timer, if it is not already activated

        if ( !iCursorBlinkingTimer->IsActive() )

            {

            iCursorBlinkingTimer->Start(aImmediately ? 0: KCursorBlinkPerioid,

                   KCursorBlinkPerioid,TCallBack(CursorBlinkCallBack , this));

            }

        }

        // Invalidate InsertionPoint's rect, so it will be removed from editarea

    InvalidateInsertionPoint();

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::SetHeight

// Sets caret height

// (other items were commented in a header).

// ---------------------------------------------------------------------------

//

EXPORT_C void CFepUiCursor::SetHeight(TInt aHeight)

    {

    if(aHeight > 0 && aHeight != iHeight )

        {

        TBool isOn = iIsOn;

        if (isOn)

            {

            SetOn(EFalse);

            }

        iHeight = aHeight;

        //change the cursor rect

        TPoint correction(KCursorPosCorrectionX,KCursorPosCorrectionY );

        iCursorRect = TRect(iPosition + correction , 

                                    TSize(KCursorWidth,iHeight));

        if (isOn)

            {

            SetOn(ETrue);

            }

        }   

    }

EXPORT_C void CFepUiCursor::ReDraw(TBool aReset)

    {

    if(aReset)

        iIsVisible = EFalse;

    Draw();

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::Draw

// Draws insertion point's Rect and starts blinking timer

// (other items were commented in a header).

// ---------------------------------------------------------------------------

//

void CFepUiCursor::Draw()//CBitmapContext* aGc, TBool aReset)

    {

    if(!AbleToDraw())

        {

        return;

        }

    /*if (aReset)    

        {

        iIsVisible = EFalse;

        }

      */  

    CFbsBitGc* gc = static_cast<CFbsBitGc*>(BitGc());                

    gc->Activate( BitmapDevice());    

    if(iIsOn)

        {        

        // draw cursor by inverting colors in the selected text rectancle

        gc->SetClippingRegion(ValidClipRegion());        	        

        gc->SetBrushStyle(CGraphicsContext::ESolidBrush);

        gc->SetBrushColor(KRgbBlack);

        gc->SetDrawMode(CGraphicsContext::EDrawModeNOTSCREEN);

        gc->SetPenColor(KRgbBlack);

        gc->SetPenStyle(CGraphicsContext::ESolidPen);

        gc->SetPenSize( TSize(1,1));

        // When the blink timer out and cursor is visible, do nothing

        // else draw the cursor and set the visible flag

        gc->DrawRect(iCursorRect);

        iIsVisible = !iIsVisible;

        // restore normal draw mode

        gc->SetDrawMode(CGraphicsContext::EDrawModePEN);

        gc->SetBrushStyle(CGraphicsContext::ENullBrush);

        //if (iEditor)

            {

          //  iEditor->UpdateArea(iCursorRect,EFalse);

            }

     //   UpdateArea(iCursorRect,EFalse);

        } 

    else

        {

        if(iIsVisible) //only do when already shown

            {                

            //CFbsBitmapDevice* bitmapDevice = iEditor->BitmapDevice();  

            //static_cast<CFbsBitGc*>(gc)->Activate(iBitmapDevice);

            gc->SetClippingRegion(ValidClipRegion());        	    

            gc->SetPenColor(KRgbBlack);

            gc->SetBrushStyle(CGraphicsContext::ESolidBrush);

            gc->SetBrushColor(KRgbBlack);

            gc->SetDrawMode(CGraphicsContext::EDrawModeNOTSCREEN);

            gc->SetPenStyle(CGraphicsContext::ESolidPen);

            gc->SetPenSize( TSize(1,1));

            gc->DrawRect(iCursorRect);

            // restore normal draw mode

            gc->SetDrawMode(CGraphicsContext::EDrawModePEN);

            gc->SetBrushStyle(CGraphicsContext::ENullBrush);

            iIsVisible = EFalse;                       

            /*if (iEditor)

                {

                iEditor->UpdateArea(iCursorRect,EFalse);

                }*/

       //     UpdateArea(iCursorRect,EFalse);                

            }   

        }

    gc->CancelClippingRegion();        	        

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::CursorBlinkCallBack

// Invalidates cursor rect, when timer gets out. 

// With periodic caused draw/undraw of cursor will cause cursor blinking

// (other items were commented in a header).

// ---------------------------------------------------------------------------

//

TInt CFepUiCursor::CursorBlinkCallBack(TAny *aPtr)

    {

    CFepUiCursor* self = static_cast<CFepUiCursor*>(aPtr); 

    self->InvalidateInsertionPoint();

    return(ETrue);        

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::InvalidateCursor

// Invalidates InsertionPoint's rect

// (other items were commented in a header).

// ---------------------------------------------------------------------------

//

void CFepUiCursor::InvalidateInsertionPoint()

    {    

        {        

        Draw();

        }

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::DelayCursorWhileDraging

// Disable the cursor while pen is draging

// (other items were commented in a header).

// ---------------------------------------------------------------------------

//    

EXPORT_C void CFepUiCursor::DelayCursorWhileDraging()

    {

    DelayCursorShown();

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::DelayCursorShown

// Disable the cursor while pen is draging

// (other items were commented in a header).

// ---------------------------------------------------------------------------

EXPORT_C void CFepUiCursor::DelayCursorShown()

    {

    if(!iIsOn && !iCursorTempDisabled) // do nothing is cursor is off

        return;

    if(!iCursorTempDisabled)

        {

        SetOn(EFalse);  // disable the cursor

        iCursorTempDisabled = ETrue;

        }

    iRestoreCursorTimer->SetTimer(KCursorBlinkPerioid);

    }

// ---------------------------------------------------------------------------

// cancel delay shown process

// ---------------------------------------------------------------------------

//

void CFepUiCursor::CancelDelayCursorShown()

    {

    iRestoreCursorTimer->Cancel();

    iCursorTempDisabled = EFalse;

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::HandleTimerOut

// Set the cursor on

// (other items were commented in a header).

// ---------------------------------------------------------------------------

//

void CFepUiCursor::HandleTimerOut(TInt /*aTimeType*/)

    {

    iCursorTempDisabled = EFalse;

    iIsOn = ETrue;

    //To avoid the ugly first shown, we draw the cursor directly here.

    InvalidateInsertionPoint();

    SetOn(ETrue, EFalse);    

    }

// ---------------------------------------------------------------------------

// CFepUiCursor::UpdateValidRegion

// Update control's valid region when other control show or hide.

// (other items were commented in a header).

// ---------------------------------------------------------------------------

//

EXPORT_C void CFepUiCursor::UpdateValidRegion(CFepUiBaseCtrl* aCtrl,TBool aRemoveFlag)

    {

    if(!iUpdateFlagEnabled)

        return;

    if(aRemoveFlag)

        {

        }

    else

        {

        if(aCtrl->Hiden())

            return;

        TRect rect = Rect();

        rect.Intersection(aCtrl->Rect());

        iValidRegion.SubRect(rect);

        iClipRegion.SubRect(rect);

        }

        //iValidRegion.AddRect(iRect);

    return;

    }

TInt CFepUiCursor::OrderPos()

    {

    TInt ret = 0;

    TRAP_IGNORE(ret = OrderPosL());

    return ret;

    }

TInt CFepUiCursor::OrderPosL()

    {

    __ASSERT_DEBUG(iEditor,User::Leave(EUiCursorNoOwner));

    return iEditor->OrderPos();    

    }

void CFepUiCursor::ResetValidClipRegion()

    {

    iValidRegion.Clear();

    iClipRegion.Clear();

    iValidRegion.AddRect(iRect);

    iClipRegion.AddRect(iRect);

    }

void CFepUiCursor::UpdateCursorArea(const TRect& aRect, TBool aFlag)

    {

    CFepUiBaseCtrl* parent = iEditor->ParentCtrl();

    if(parent)

        {