launcher/src/launchercontaineroutput.cpp
author andy simpson <andrews@symbian.org>
Tue, 13 Jul 2010 17:34:19 +0100
branchRCL_3
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parent 11 454d022d514b
permissions -rw-r--r--
DEADHEAD repo replaced by http://developer.symbian.org/oss/MCL/sf/app/rndtools/
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  
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*
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*/
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// INCLUDE FILES
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#include "launchercontaineroutput.h"
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#include "launcherengine.h"
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#include <AknBidiTextUtils.h>
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#include <AknUtils.h>
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#include <aknnotewrappers.h>
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#include <eiksbfrm.h>
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#include <AknDef.h>
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const TUint KLeftMargin = 2;
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const TUint KRightMargin = 2;
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// ================= MEMBER FUNCTIONS =======================
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void CLauncherContainerOutput::ConstructL(const TRect& aRect, CLauncherEngine* aEngine)
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    {
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    iEngine = aEngine;
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    CreateWindowL();
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    Window().SetShadowDisabled(EFalse);
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    SetBlank();
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    iText = HBufC::NewL(200000);
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    iCurrentLine = 0;
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    iLineCount = 0;
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    iNumberOfLinesFitsScreen = 0;
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    iX_factor = 1;
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    iY_factor = 1;
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    iLeftDrawingPosition = KLeftMargin;
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    iFont = AknLayoutUtils::FontFromId(EAknLogicalFontSecondaryFont);
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    iWrappedArray = new(ELeave) CArrayFixFlat<TPtrC>(500);
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    SetRect(aRect);
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    //ActivateL(); 
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    PrintTextL(_L("Ready.\n\n"));
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    }
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CLauncherContainerOutput::~CLauncherContainerOutput()
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    {
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    if (iWrappedArray)
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        {
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        iWrappedArray->Reset();
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        delete iWrappedArray;
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        }
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    if (iText)
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        delete iText;
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    if (iScrollBarFrame)
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        delete iScrollBarFrame;
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    if (iWrapperString)
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        delete iWrapperString;
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    }
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// ---------------------------------------------------------
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// CLauncherContainerOutput::UpdateVisualContentL()
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// ---------------------------------------------------------
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//
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void CLauncherContainerOutput::UpdateVisualContentL(TBool aScrollToBottom, TBool aScrollToTop)
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    {
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    TSize rectSize;
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    AknLayoutUtils::LayoutMetricsSize(AknLayoutUtils::EMainPane, rectSize);
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    TRect rect(rectSize);
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    // init scroll bar if not yet done
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    if (!iScrollBarFrame)
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        {
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        iScrollBarFrame = new(ELeave) CEikScrollBarFrame(this, this, ETrue);
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        CAknAppUi* appUi = iAvkonAppUi;
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	    if (AknLayoutUtils::DefaultScrollBarType(appUi) == CEikScrollBarFrame::EDoubleSpan)
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	        {
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		    iScrollBarFrame->CreateDoubleSpanScrollBarsL(ETrue, EFalse);            
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		    iScrollBarFrame->SetTypeOfVScrollBar(CEikScrollBarFrame::EDoubleSpan);
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	        }
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	    else
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	        {
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		    iScrollBarFrame->SetTypeOfVScrollBar(CEikScrollBarFrame::EArrowHead);
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	        }  
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	    iScrollBarFrame->SetScrollBarVisibilityL(CEikScrollBarFrame::EOff, CEikScrollBarFrame::EAuto);
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        }
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    // drawing positions, needed for scalable ui
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    iX_factor = TReal(rect.Width()) / 176;
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    iY_factor = TReal(rect.Height()) / 144;
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   118
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    iWrappedArray->Reset();
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   120
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    if (iWrapperString)
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        {
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        delete iWrapperString;
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        iWrapperString = NULL;
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   125
        }
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   126
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    // define drawing width, some extra space needed if using double span scrolling bar
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    TUint drawingWidth(0);
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    if (iScrollBarFrame->TypeOfVScrollBar() == CEikScrollBarFrame::EDoubleSpan)
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   130
        {
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   131
        if (AknLayoutUtils::LayoutMirrored())  // scroll bar on 'left'
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            {
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            iLeftDrawingPosition = KLeftMargin + 12;
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            drawingWidth = TInt( rect.Width() - iLeftDrawingPosition*iX_factor - (KRightMargin*iX_factor)); 
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   135
            }
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        else // scroll bar on 'right'
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            {
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            iLeftDrawingPosition = KLeftMargin;  
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            drawingWidth = TInt( rect.Width() - iLeftDrawingPosition*iX_factor - (KRightMargin*iX_factor + 7*iX_factor)); 
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   140
            }        
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   141
        }
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   142
    else
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   143
        drawingWidth = TInt( rect.Width() - KLeftMargin*iX_factor - KRightMargin*iX_factor);
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   144
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    // wrap the text
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   146
    iWrapperString = AknBidiTextUtils::ConvertToVisualAndWrapToArrayL(
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        iText->Des(),
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   148
        drawingWidth,
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   149
        *iFont,
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        *iWrappedArray
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   151
        );
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   152
    
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    iLineCount = iWrappedArray->Count();
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   154
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   155
    // count amount of lines fits to screen
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   156
    iNumberOfLinesFitsScreen = TInt(rect.Height() / (iFont->HeightInPixels()));
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parents:
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   157
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   158
    // check if needed to scroll to the bottom
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   159
    if (aScrollToBottom )
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   160
        {
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   161
        if( iCurrentLine < iLineCount - iNumberOfLinesFitsScreen)
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   162
            {
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            iCurrentLine = iLineCount-iNumberOfLinesFitsScreen;
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   164
            }
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   165
        }
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   166
    else if( aScrollToTop )
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   167
        {
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        iCurrentLine = 0;
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   169
        }
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   170
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   171
    // update the scroll bars
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   172
	TEikScrollBarModel horizontalBar;
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   173
    TEikScrollBarModel verticalBar;
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   174
    verticalBar.iThumbPosition = iCurrentLine;
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   175
    verticalBar.iScrollSpan = iLineCount - iNumberOfLinesFitsScreen + 1;
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   176
    verticalBar.iThumbSpan = 1;
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   177
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   178
    TEikScrollBarFrameLayout layout;
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   179
	layout.iTilingMode = TEikScrollBarFrameLayout::EInclusiveRectConstant;
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   180
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   181
    if (iScrollBarFrame->TypeOfVScrollBar() == CEikScrollBarFrame::EDoubleSpan)
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   182
        {    
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   183
        // do not let scrollbar values overflow
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   184
        if (verticalBar.iThumbPosition + verticalBar.iThumbSpan > verticalBar.iScrollSpan)
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   185
            verticalBar.iThumbPosition = verticalBar.iScrollSpan - verticalBar.iThumbSpan;
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parents:
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   186
		
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   187
        TAknDoubleSpanScrollBarModel horizontalDSBar(horizontalBar);
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   188
        TAknDoubleSpanScrollBarModel verticalDSBar(verticalBar);
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   189
       
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   190
        iScrollBarFrame->TileL(&horizontalDSBar, &verticalDSBar, rect, rect, layout);        
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   191
        iScrollBarFrame->SetVFocusPosToThumbPos(verticalDSBar.FocusPosition());
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   192
	    }  
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   193
	else
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   194
	    {
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   195
		iScrollBarFrame->TileL( &horizontalBar, &verticalBar, rect, rect, layout );
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   196
		iScrollBarFrame->SetVFocusPosToThumbPos( verticalBar.iThumbPosition );
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   197
	    }
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   198
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   199
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   200
    // update the screen
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   201
    DrawNow();
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   202
    }
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   203
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   204
// ---------------------------------------------------------
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   205
// CLauncherContainerOutput::Draw(const TRect& aRect) const
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   206
// ---------------------------------------------------------
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//
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   208
void CLauncherContainerOutput::Draw(const TRect& aRect) const
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   209
    {
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   210
    CWindowGc& gc = SystemGc();
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   211
    gc.Clear(aRect);
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   212
    gc.SetPenColor(KRgbBlack);
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   213
    gc.UseFont(iFont);
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parents:
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   214
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   215
    // draw the text
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   216
    for (TInt i=0; i<iNumberOfLinesFitsScreen; i++)
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parents:
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   217
        {
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   218
        // index out of bounds check and then draw text
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   219
        if (i+iCurrentLine < iWrappedArray->Count())
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   220
            gc.DrawText(iWrappedArray->At(i+iCurrentLine), TPoint(TInt(iLeftDrawingPosition*iX_factor), TInt(iFont->HeightInPixels()*(i+1))));
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parents:
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   221
        }
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   222
    }
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parents:
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   223
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   224
// ---------------------------------------------------------
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   225
// CLauncherContainerOutput::HandleControlEventL(
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   226
//     CCoeControl* aControl,TCoeEvent aEventType)
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// ---------------------------------------------------------
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   228
//
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   229
void CLauncherContainerOutput::HandleControlEventL(
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    CCoeControl* /*aControl*/,TCoeEvent /*aEventType*/)
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    {
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    }
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// ---------------------------------------------------------
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// CLauncherContainerOutput::PrintTextL(const TDesC& aDes)
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// Print text into output window.
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// ---------------------------------------------------------
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//
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void CLauncherContainerOutput::PrintTextL(const TDesC& aDes)
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    {
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    iText->Des().Append( aDes );
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    UpdateVisualContentL(ETrue);
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    }
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// ---------------------------------------------------------
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// CLauncherContainerOutput::OfferKeyEventL(const TKeyEvent& aKeyEvent,
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//                                    TEventCode aType)
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// Handle key event. Only up and down key arrow events are
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// consumed in order to enable scrolling in output window.
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// ---------------------------------------------------------
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//
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TKeyResponse CLauncherContainerOutput::OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType)
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    {
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    if(aType != EEventKey)
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        return EKeyWasNotConsumed;
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    if(aKeyEvent.iCode == EKeyUpArrow)
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        {
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        if (iCurrentLine > 0)
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            {
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            iCurrentLine--;
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            UpdateVisualContentL(EFalse);
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            }
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        return EKeyWasConsumed;
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        }
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    else if(aKeyEvent.iCode == EKeyDownArrow)
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        {
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        if (iCurrentLine < iLineCount - iNumberOfLinesFitsScreen)
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            {
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            iCurrentLine++;
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            UpdateVisualContentL(EFalse);
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            }
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        return EKeyWasConsumed;
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        }
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    return EKeyWasNotConsumed;
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    }
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// ---------------------------------------------------------
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// CLauncherContainerOutput::ClearOutputWindowL()
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// Clear the output window.
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// ---------------------------------------------------------
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//
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void CLauncherContainerOutput::ClearOutputWindowL()
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    {
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    iText->Des() = _L("");
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    UpdateVisualContentL(EFalse, ETrue);
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    }
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// ---------------------------------------------------------
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// CLauncherContainerOutput::HandleResourceChange(TInt aType)
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// Handle layout change of the screen
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// ---------------------------------------------------------
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//
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   299
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void CLauncherContainerOutput::HandleResourceChange(TInt aType)
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    {
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    if ( aType == KEikDynamicLayoutVariantSwitch )
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        {
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        TRect mainPaneRect;
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        AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EMainPane, mainPaneRect);
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        SetRect(mainPaneRect);
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   307
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        iCurrentLine = 0; // scroll to top
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        // update font
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        iFont = AknLayoutUtils::FontFromId(EAknLogicalFontSecondaryFont);
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   312
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        // delete the scroll and update screen
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        if (iScrollBarFrame)
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            {
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            delete iScrollBarFrame;
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            iScrollBarFrame = NULL;
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            }
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        TRAP_IGNORE(UpdateVisualContentL(EFalse));
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        }
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    else
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        {
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        CCoeControl::HandleResourceChange(aType);
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        }
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    }
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   326
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// ---------------------------------------------------------
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// CLauncherContainerOutput::HandleScrollEventL()
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// Capture touch events on the scroll bar
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// ---------------------------------------------------------
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//
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void CLauncherContainerOutput::HandleScrollEventL(CEikScrollBar* aScrollBar, TEikScrollEvent aEventType)
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    {
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    // only on page up/down,scroll up/down and drag events
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    if ((aEventType == EEikScrollPageDown) || (aEventType == EEikScrollPageUp) || 
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       (aEventType == EEikScrollThumbDragVert) || (aEventType == EEikScrollUp) ||
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       (aEventType == EEikScrollDown))
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        {
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        // get the current position from the scroll bar
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        iCurrentLine = aScrollBar->ThumbPosition();
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        // refresh now
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        UpdateVisualContentL(EFalse);
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        }
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    }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
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d6fe6244b863 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
// End of File