/*

* Copyright (c) 2002 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:           

*       Provides the CAknFepUICtrlInputPane methods.

*

*/

#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS

#include <uikon/eikdefmacros.h>

#endif

#include <gulfont.h> 

#include <eiklabel.h>

#include <AknUtils.h>

#include <AknsDrawUtils.h>

#include <skinlayout.cdl.h>

#include "AknFepUIAvkonCtrlInputPane.h"

#include "AknFepUIAvkonCtrlPinyinPopup.h"

#include "aknfepchineseuidataconv.h"

#include "aknfepuilayoutdatamgr.h"

CAknFepUICtrlInputPane* CAknFepUICtrlInputPane::NewL(RWindow& aParent, 

                                                     TInputPaneLayout aPaneLayout,

                                                     CAknFepUiLayoutDataMgr* aLafDataMgr )

    {

    CAknFepUICtrlInputPane* self = new(ELeave) CAknFepUICtrlInputPane(aPaneLayout,aLafDataMgr);

    CleanupStack::PushL(self);

    self->ConstructL(aParent);

    CleanupStack::Pop();

    return self;

    }

CAknFepUICtrlInputPane::~CAknFepUICtrlInputPane()

    {

    delete iBuffer;

    delete iLabel;

    delete iLabelToneMark;

    }

void CAknFepUICtrlInputPane::SetSizeChangedObserver(

    MAknFepUICtrlPinyinPopupSizeChangedObserver* aObserver)

    {

    iSizeChangedObserver = aObserver;

    }

void CAknFepUICtrlInputPane::SetText(const TDesC& aDes)

    {

    // make sure that we only copy as many characters as we can show

    if(iLayout == ELayoutPhraseInputPane)

        {

        TPtrC newText = aDes.Right(CalculateMaxTextLength(aDes));        

        TPtr ptr = iBuffer->Des();

        if(ptr != newText)

            {

            ptr.Copy(newText);

            UpdateLabelContents();

            if(iLayout == ELayoutPhraseInputPane) 

                {

                iSizeChangedObserver->SelectionPopupSizeChanged(CAknFepUICtrlPinyinPopup::EMaxCandidates + 1); // indicate input pane layout

                }

            DrawNow();

            }

        }

    else

        {

        TPtrC newText= aDes.Right(iMaxInputChars - EMaxToneMarkLength);

        TPtr ptr = iBuffer->Des();

        if(ptr != newText)

            {

            ptr.Copy(newText);

            UpdateLabelContents();

            if(iLayout == ELayoutPhraseInputPane) 

                {

                iSizeChangedObserver->SelectionPopupSizeChanged(CAknFepUICtrlPinyinPopup::EMaxCandidates + 1); // indicate input pane layout

                }

            DrawNow();

            }

        }

    }

void CAknFepUICtrlInputPane::GetText(TDes& aText) const

    {

    aText.Copy(*iBuffer);

    }

void CAknFepUICtrlInputPane::SetHighlighted(TBool aHighlighted)

    {

    if(!COMPARE_BOOLS(iHighlighted, aHighlighted))

        {

        iHighlighted = aHighlighted;

        // need to change highlight colors

        LayoutContainedControls();

        DrawDeferred();

        }

    }

TBool CAknFepUICtrlInputPane::Highlighted() const

    {

    return iHighlighted;

    }

void CAknFepUICtrlInputPane::SetToneMark(const TDesC& aToneMark)

    {

    TPtrC newText = aToneMark.Left(EMaxToneMarkLength);

    TPtr tonePtr = iToneMarkBuffer.Des();

    if(tonePtr != newText)

        {

        tonePtr.Copy(newText);

        UpdateLabelContents();

        if(iLayout == ELayoutPhraseInputPane)

            {

            iSizeChangedObserver->SelectionPopupSizeChanged(CAknFepUICtrlPinyinPopup::EMaxCandidates + 1);

            }

        DrawDeferred();

        }

    }

void CAknFepUICtrlInputPane::GetToneMark(TDes& aToneMark) const

    {

    TInt length = aToneMark.MaxLength();

    TPtrC toneMark = iToneMarkBuffer.Left(length);

    aToneMark.Copy(toneMark);

    }

void CAknFepUICtrlInputPane::SetToneMarkValidity(TBool aValid)

    {

    if(!COMPARE_BOOLS(iToneMarkValidity, aValid))

        {

        iToneMarkValidity = aValid;

        LayoutContainedControls();

        UpdateLabelContents();

        DrawDeferred();

        }

    }

void CAknFepUICtrlInputPane::SetLayoutIndex(TInt aIndex)

    {

    if(iLayoutIndex != aIndex)

        {

        iLayoutIndex = aIndex;

        LayoutContainedControls();

        }

    }

void CAknFepUICtrlInputPane::SetOverrideFontId(TInt aFontId)

    {

    if(iFontId != aFontId)

        {

        iFontId = aFontId;

        // need to update the layout, and then force the text to be formatted

        LayoutContainedControls();

        UpdateLabelContents();

        DrawDeferred();

        }

    }

void CAknFepUICtrlInputPane::MakeTextVisible(TBool aVisible)

    {

    if(aVisible)

        {

        UpdateLabelContents();

        }

    else

        {

        TRAP_IGNORE( 

            iLabel->SetTextL(KNullDesC);

            iLabelToneMark->SetTextL(KNullDesC);

            );

        }

    }

TInt CAknFepUICtrlInputPane::LabelTextWidthInPixels() const

    {

    TAknLayoutText layoutText = 

            CAknFepChineseUIDataConv::AnyToLayoutText( iLafDataMgr->RequestData( ELayoutInputPaneText ));

    const CFont* font = layoutText.Font();

    TInt labelWidthInPixels = 0;

    if(font)

        {

        TBufC<EMaxInputCharsInputPane> buf1;

        TPtr ptr1 = buf1.Des();

        GetText(ptr1);

        TBufC<EMaxToneMarkLength> buf2;

        TPtr ptr2 = buf2.Des();

        GetToneMark(ptr2);

        labelWidthInPixels = font->TextWidthInPixels(ptr1); 

        labelWidthInPixels += font->TextWidthInPixels(ptr2);

        }

    TInt maxWidth = layoutText.TextRect().Width(); 

    labelWidthInPixels = labelWidthInPixels > maxWidth? maxWidth:labelWidthInPixels;

    return labelWidthInPixels;

    }

void CAknFepUICtrlInputPane::SizeChanged()

    {

    LayoutContainedControls();

    }

TInt CAknFepUICtrlInputPane::CountComponentControls() const

    {

    CCoeControl* controls[] = 

        {

        iLabel,

        iLabelToneMark

        } ;

    TInt count = 0 ;

    for (TUint ii = 0 ; ii < (sizeof(controls) / sizeof(CCoeControl*)) ; ii++)

        {

        if(controls[ii])

            {

            count++ ;

            }

        }

    return count ;

    }

CCoeControl* CAknFepUICtrlInputPane::ComponentControl(TInt aIndex) const 

    {

    CCoeControl* controls[] = 

        {

        iLabel,

        iLabelToneMark

        } ;

    for (TUint ii = 0; (ii < sizeof(controls) / sizeof(CCoeControl*)) ; ii++)

        {

        if (controls[ii] && aIndex-- == 0)

            {

            return controls[ii] ;

            }

        }

    // shouldn't be called while no components.

    return NULL ;

    }

void CAknFepUICtrlInputPane::Draw(const TRect& /*aRect*/) const

    {

    TBool skinnedDraw = EFalse;

    CWindowGc& gc = SystemGc();

    MAknsSkinInstance* skin = AknsUtils::SkinInstance();

    if(iHighlighted)

        {

        TRect outerRect;

        TRect innerRect;

        CalculateFrameRects(outerRect, innerRect);

        skinnedDraw = AknsDrawUtils::DrawFrame(

            skin, gc, outerRect, innerRect, KAknsIIDQsnFrList, KAknsIIDQsnFrListCenter); // or KAknsIIDDefault?

        }

    else

        {

        MAknsControlContext* cc = AknsDrawUtils::ControlContext(this);

        skinnedDraw = AknsDrawUtils::Background(skin, cc, this, gc, Rect());

        }

    if(!skinnedDraw)

        {

        if(iHighlighted)

            {

            iUnselectedStringHighlight.DrawRect(gc);

            }

        else

            {

            gc.SetBrushColor(AKN_LAF_COLOR_STATIC(0)); 

            gc.Clear(iUnselectedStringHighlight.Rect());

            }

        }

    }

void CAknFepUICtrlInputPane::ConstructL(RWindow& aParent)

    {

    SetContainerWindowL(aParent);

    iBuffer = HBufC::NewL(iMaxInputChars);

    // force label to contain required number of characters from the outset

    iLabel = new(ELeave) CEikLabel;

    iLabel->SetBufferReserveLengthL(iMaxInputChars); // this will do a realloc now, so no need to later

    iLabel->SetContainerWindowL(aParent);

    iLabel->SetMopParent(this);

    iLabelToneMark = new(ELeave) CEikLabel;

    iLabelToneMark->SetBufferReserveLengthL(EMaxToneMarkLength); // this will do a realloc now, so no need to later

    iLabelToneMark->SetContainerWindowL(aParent);

    iLabelToneMark->SetMopParent(this);

    }

CAknFepUICtrlInputPane::CAknFepUICtrlInputPane(TInputPaneLayout aPaneLayout, CAknFepUiLayoutDataMgr* aLafDataMgr)

    : 

    iHighlighted(EFalse),

    iLayout(aPaneLayout),

    iToneMarkValidity(ETrue),

    iFlags(0),

    iLafDataMgr(aLafDataMgr)

    {

    switch(iLayout)

        {

        case ELayoutPhraseInputPane:

            iMaxInputChars = EMaxInputCharsInputPane;

            break;

        case ELayoutPhrasePinyinPopupPane:

            iMaxInputChars = EMaxInputCharsPinyinPopup;

            break;

        default:

            iMaxInputChars = EMaxInputCharsInputPane;

            break;

        };

    }

void CAknFepUICtrlInputPane::UpdateLabelContents()

    {

    // add on the tone mark for the purposes of clipping

    TBufC<EMaxInputChars> combinedBuffer;

    TPtr combinedPtr = combinedBuffer.Des();

    combinedPtr.Copy(*iBuffer);

    combinedPtr.Append(iToneMarkBuffer);

    TRect rect = Rect();

    if(iLayout == ELayoutPhrasePinyinPopupPane)

        {

        TAknLayoutRect layoutLineRectEntryPane = 

                CAknFepChineseUIDataConv::AnyToLayoutRect( iLafDataMgr->RequestData( ELayoutLineRectEntryPane ));

        rect = layoutLineRectEntryPane.Rect();

        }

    // avoid accessing text layout member data

    TAknLayoutRect labelRect;

    TAknWindowLineLayout layoutEntryItem = 

            CAknFepChineseUIDataConv::AnyToWindowLine( iLafDataMgr->RequestData(ELayoutEntryItem));

    labelRect.LayoutRect(rect, layoutEntryItem);

    TAknLayoutText layoutText;

    TAknTextLineLayout entryTextLine = 

        CAknFepChineseUIDataConv::AnyToTextLine( iLafDataMgr->RequestData(EEntryTextLayout));

    layoutText.LayoutText(labelRect.Rect(),entryTextLine);

    TInt maxWidth = layoutText.TextRect().Width(); 

    TAknLayoutText layoutText1 = 

            CAknFepChineseUIDataConv::AnyToLayoutText( iLafDataMgr->RequestData( ELayoutInputPaneText ));

    const CFont* font = layoutText1.Font();

    TInt labelWidthInPixels = 0;

    if(font)

        {

        TBufC<EMaxInputCharsInputPane> buf1;

        TPtr ptr1 = buf1.Des();

        GetText(ptr1);

        TBufC<EMaxToneMarkLength> buf2;

        TPtr ptr2 = buf2.Des();

        GetToneMark(ptr2);

        labelWidthInPixels = font->TextWidthInPixels(ptr1); 

        labelWidthInPixels += font->TextWidthInPixels(ptr2);

        }

    if(labelWidthInPixels > maxWidth)

		{

		AknTextUtils::ClipToFit(

		combinedPtr,

		*(iLabel->Font()),

		maxWidth,

		AknTextUtils::EClipFromBeginning, 

		KDefaultClipWidth, 

		KNullDesC); 

		}

    // now remove the tone mark again, as it has a separate label

    TInt uncombinedLength = combinedPtr.Length() - iToneMarkBuffer.Length();

    if(uncombinedLength < 0)

        uncombinedLength = 0;

    combinedPtr.SetLength(uncombinedLength); // always shorter, so won't be bigger than max

    // ignore any errors... we have guaranteed that the descriptor already has sufficient characters to avoid a realloc

    TRAP_IGNORE( 

        iLabel->SetTextL(combinedPtr);

        iLabelToneMark->SetTextL(iToneMarkBuffer);

        );

    }

void CAknFepUICtrlInputPane::LayoutContainedControls()

    {

    TRect rect = Rect();

    if(iLayout == ELayoutPhraseInputPane)

		{

	    TAknWindowLineLayout layoutEntryItem = 

	            CAknFepChineseUIDataConv::AnyToWindowLine( iLafDataMgr->RequestData(ELayoutEntryItem));

        iUnselectedStringHighlight.LayoutRect(rect, layoutEntryItem);

        }

    else if(iLayout == ELayoutPhrasePinyinPopupPane) 

		{

        iUnselectedStringHighlight.LayoutRect(rect, AKN_LAYOUT_WINDOW_Input_highlight_Line_1(rect));

        }

    // layout spelling label    

    TAknTextLineLayout textLayout = 

        CAknFepChineseUIDataConv::AnyToTextLine( iLafDataMgr->RequestData(EEntryTextLayout));

    TAknLayoutText layoutText;

    TRect rectHighlight = iUnselectedStringHighlight.Rect();

    TRect textRect;

    layoutText.LayoutText(rectHighlight,textLayout);

    textRect = layoutText.TextRect();

    TRgb labelTextColor = layoutText.Color();

    TInt labelWidth = LabelTextWidthInPixels();

    if(textRect.Width() > labelWidth)

        {

        textRect.SetWidth(labelWidth);

        }

    iLabel->SetRect(textRect);

    const CFont* font = layoutText.Font();

    iLabel->SetFont(font);

    // layout tone mark label

    TRgb labelToneMarkTextColor = labelTextColor;

    TRect toneMarkRect;

    TPtrC ptr = *iBuffer;

    TInt toneMarkOffset = 0;

    toneMarkOffset = iLabel->CalcMinimumSize(ptr).iWidth;

    toneMarkRect.iTl.iX = textRect.iTl.iX + toneMarkOffset;

    toneMarkRect.iTl.iY = textRect.iTl.iY;

    toneMarkRect.iBr.iY = textRect.iBr.iY;

    toneMarkRect.SetWidth(labelWidth - toneMarkOffset);

    iLabelToneMark->SetRect(toneMarkRect);

    iLabelToneMark->SetFont(font);

    // once we have layed out the labels from LAF, override the colours from the skin if necessary

    // as the skin utils will only return RGB values, not colour ids.

    MAknsSkinInstance* skin = AknsUtils::SkinInstance();

    TInt colorIndex = EAknsCIQsnTextColorsCG19;

    if (iHighlighted)

        {

        colorIndex = EAknsCIQsnTextColorsCG11;

        }

    AknsUtils::GetCachedColor(skin, labelTextColor, KAknsIIDQsnTextColors, colorIndex);

    colorIndex = iToneMarkValidity ? EAknsCIQsnTextColorsCG10: EAknsCIQsnTextColorsCG11; 

    AknsUtils::GetCachedColor(skin, labelToneMarkTextColor, KAknsIIDQsnTextColors, colorIndex);

    TRgb tonemarkColor;

    if (iToneMarkValidity)

    	{

    	tonemarkColor = labelToneMarkTextColor;

    	}

    else

    	{

    	tonemarkColor = KRgbGray;	

    	}	

    TRAP_IGNORE( 

        iLabel->OverrideColorL(EColorLabelText, labelTextColor);

        iLabelToneMark->OverrideColorL(EColorLabelText, tonemarkColor);

        );    

    }

void CAknFepUICtrlInputPane::CalculateFrameRects(TRect& aOuterRect, TRect& aInnerRect) const

    {

    TRect windowRect = Rect();

    TRect entryRect = 

        CAknFepChineseUIDataConv::AnyToRect( iLafDataMgr->RequestData(EEntryPaneRect));

    windowRect.SetHeight(entryRect.iBr.iY - entryRect.iTl.iY);

    TAknLayoutRect topLeft;

    topLeft.LayoutRect(windowRect,SkinLayout::Submenu_skin_placing_Line_2());

    TAknLayoutRect bottomRight;

    bottomRight.LayoutRect(windowRect, SkinLayout::Submenu_skin_placing_Line_5());

    aOuterRect = TRect(topLeft.Rect().iTl, bottomRight.Rect().iBr);

    aInnerRect = TRect(topLeft.Rect().iBr, bottomRight.Rect().iTl);

    if (aInnerRect.Width() <= 4)

        {

        aInnerRect.SetWidth(5);

        }

    }

TInt CAknFepUICtrlInputPane::CalculateMaxTextLength(const TDesC& aDes) const

    {

    TAknLayoutText layoutText = 

            CAknFepChineseUIDataConv::AnyToLayoutText( iLafDataMgr->RequestData( ELayoutInputPaneText ));

    TInt maxWidth = layoutText.TextRect().Width();

    TInt textWidth = 0;

    textWidth = aDes.Length();

    while (maxWidth < CalculateTextLength(aDes.Right(textWidth)))

        {

        textWidth--;

        }

    return textWidth;

    }

TInt CAknFepUICtrlInputPane::CalculateTextLength(const TDesC& aDes) const

    {

    TAknLayoutText layoutText = 

            CAknFepChineseUIDataConv::AnyToLayoutText( iLafDataMgr->RequestData( ELayoutInputPaneText ));