javauis/lcdui_akn/lcdui/src/CMIDFont.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 03 May 2010 12:27:20 +0300
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/*
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* Copyright (c) 2003-2008 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:  Implementation of CMIDFont for series 60
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*
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*/
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#include <eikenv.h>
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#include <coemain.h>
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#include <barsread.h>
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#include <lcdui.rsg>
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#include <fontids.hrh>
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#include <gulfont.h>
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// API used when font is created
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#include <AknUtils.h>
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#include <aknenv.h>
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// API from CAknLayoutFont related to fonts
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#include <AknLayoutFont.h>
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#include <j2me/jdebug.h>
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#include <aknlayoutscalable_avkon.cdl.h> // for layout data
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#include "CMIDFont.h"
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// API used for checking graphic scaling related parameters
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#include "CMIDMenuHandler.h"
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#include "CMIDUIManager.h"
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// Indexes for the font size table below
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enum TColumnIndexes
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{
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    EIndexScreenWidth  = 0,
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    EIndexScreenHeight = 1,
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    EIndexSmallFont    = 2,
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    EIndexMediumFont   = 3,
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    EIndexLargeFont    = 4,
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    EResolutionCount   = 6
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};
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// Table including the font sizes for known S60 resolutions
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// The order of the numbers in one table row:
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// 1. screen width
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// 2. screen height
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// 3. small font height
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// 4. medium font height
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// 5. large font heigth
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// This table must be updated when new resolutions become available in S60.
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const TInt KFontSizes[EResolutionCount][5] =
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{
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    { 176, 208, 13, 15, 17 }, // Low
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    { 240, 320, 19, 21, 24 }, // QVGA
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    { 320, 480, 25, 28, 32 }, // HVGA
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    { 352, 416, 26, 30, 34 }, // Double
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    { 360, 640, 24, 27, 30 }, // nHD
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    { 480, 640, 32, 36, 41 }  // VGA
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};
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// Constant for calculating the font heights when in graphic scaling case
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// the original MIDlet resolution is smaller than any known S60 resolution.
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// These are the averages of screen width / font height ratios of
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// Low, QVGA, Double and HVGA resolutions.
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const TReal KSmallFontRatioToScreenWidth  = 13.13;
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const TReal KMediumFontRatioToScreenWidth = 11.58;
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const TReal KLargeFontRatioToScreenWidth  = 10.18;
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// Minimum font height. This is used as font height if calculated font
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// height would be smaller than this.
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const TInt KMinFontHeight = 11;
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// Default value of iScalingFactor.
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const TReal KNonScaled = 1.0;
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// Zero size (0, 0).
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#define KZeroSize ::TSize()
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MMIDFont* CMIDFont::NewL(TUint aStyle, TUint aSize, TInt aFace,
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                         CMIDUIManager* aUIManager, TBool aIsFreeSizeFont)
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{
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    CMIDFont* font = new(ELeave) CMIDFont(aUIManager);
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    CleanupStack::PushL(font);
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    font->ConstructL(aStyle, aSize, aFace, aIsFreeSizeFont);
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    CleanupStack::Pop(font);
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    return font;
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}
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CMIDFont::CMIDFont(CMIDUIManager* aUIManager)
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        : iUIManager(aUIManager), iScalingFactor(KNonScaled)
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{
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}
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/**
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 * @return the MIDP font height - including external leading.
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 */
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TInt CMIDFont::Height()
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{
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    const CAknLayoutFont* layFont =  CAknLayoutFont::AsCAknLayoutFontOrNull(Font());
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    // We are using only CAknLayoutFonts, so panic is raised if the layFont is null.
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   107
    ASSERT(layFont);
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   108
    return layFont->TextPaneHeight();
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   109
}
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parents:
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   110
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   111
/**
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   112
 * @return vertical distance from top of font to the baseline.
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   113
 */
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   114
TInt CMIDFont::Baseline()
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   115
{
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   116
    return Font()->FontMaxAscent();
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   117
}
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   118
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   119
TInt CMIDFont::Width(const TDesC& aString)
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{
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   121
    return Font()->TextWidthInPixels(aString);
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   122
}
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   123
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   124
CMIDFont::~CMIDFont()
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   125
{
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   126
    const CAknLayoutFont* layFont =  CAknLayoutFont::AsCAknLayoutFontOrNull(iFont);
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   127
    if (layFont)
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   128
    {
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        delete layFont;
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   130
        iFont = NULL;
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   131
    }
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   132
}
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   133
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   134
void CMIDFont::ConstructL(TUint aStyle, TUint aSize, TInt /*aFace*/,
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   135
                          TBool aIsFreeSizeFont)
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   136
{
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   137
    // Ensure that menu handler exists. It will be needed later.
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   138
    iUIManager->OpenMenuHandlerL();
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parents:
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   139
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   140
    // saving of flag iUnderline
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   141
    iUnderlined = aStyle & EUnderlined;
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parents:
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   142
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   143
    // We don't need underline flag in aStyle.
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parents:
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   144
    aStyle &= ~EUnderlined;
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parents:
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   145
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   146
    // saving of size of font
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   147
    iSize = aSize;
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   148
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   149
    // saving iIsFreeSizeFont flag
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   150
    iIsFreeSizeFont = aIsFreeSizeFont;
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parents:
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   151
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   152
    // saving of iBold flag
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   153
    if (aStyle & EBold)
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   154
    {
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        iBold = ETrue;
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   156
    }
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   157
    else
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parents:
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   158
    {
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   159
        iBold = EFalse;
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   160
    }
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parents:
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   161
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   162
    // saving of iItalic flag
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   163
    if (aStyle & EItalic)
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parents:
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   164
    {
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   165
        iItalic = ETrue;
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parents:
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   166
    }
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   167
    else
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parents:
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   168
    {
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   169
        iItalic = EFalse;
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   170
    }
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parents:
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   171
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   172
    // seting of orginal size and scaling factor.
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   173
    SetOrigFontHeight();
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parents:
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   174
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   175
    // checking of this is really resizible font
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   176
    if (iIsFreeSizeFont)
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   177
    {
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   178
        // In case of font with custom height simply set the same value as in iSize
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   179
        iPaneHeight = aSize;
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   180
    }
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   181
    else
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   182
    {
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   183
        // If is not downscaling on and this is not freely resizible font, then we use predefined size of font.
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   184
        iPaneHeight = GetTextPaneHeight(ETrue);
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   185
    }
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parents:
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   186
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   187
    iFont = NULL;
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   188
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   189
    // creating of new iFont
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   190
    CreateNewFont();
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   191
}
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parents:
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   192
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   193
const CFont* CMIDFont::DefaultFont(const TDefaultId& aId)
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   194
{
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   195
    if (aId == EDefaultTextId)
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parents:
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   196
    {
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   197
        return AknLayoutUtils::FontFromId(
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   198
                   AknLayoutScalable_Avkon::form2_mdip_string_pane_t1(1,0).Font(), NULL);
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parents:
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   199
    }
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   200
    else if (aId == EDefaultLabelId)
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parents:
diff changeset
   201
    {
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parents:
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   202
        return AknLayoutUtils::FontFromId(
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parents:
diff changeset
   203
                   AknLayoutScalable_Avkon::form2_midp_label_pane_t1(0).Font(), NULL);
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parents:
diff changeset
   204
    }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   205
    else
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   206
    {
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parents:
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   207
        ASSERT(0); // unsupported default font id
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parents:
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   208
        return NULL;
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parents:
diff changeset
   209
    }
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parents:
diff changeset
   210
}
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   211
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parents:
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   212
// deprecated, use DefaultFont(EDefaultLabelId)
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parents:
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   213
const CFont* CMIDFont::DefaultLabelFont()
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parents:
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   214
{
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parents:
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   215
    return DefaultFont(EDefaultLabelId);
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parents:
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   216
}
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parents:
diff changeset
   217
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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/**
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 * Returns iFont that is a pointer to CFont object.
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 * Parameter aHighLevelUIComponent indicates whether this method has been called
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 * from a non-high level ui component (Graphics), or a high level UI component (List, StringItem, etc.).
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 */
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CFont* CMIDFont::Font(TBool aHighLevelComponent)
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{
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    TBool useScaling = !aHighLevelComponent;
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    TInt paneHeight;
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    if (iIsFreeSizeFont)
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    {
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        // free size font is independent on resolution, so it should not be
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        // re-created if resolution is changed
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        paneHeight = iPaneHeight;
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    }
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    else
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    {
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        // standard font depends on resolution, if resolution is changed
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        // pane height is changed too
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        paneHeight = GetTextPaneHeight(useScaling);
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    }
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    // Check if the font size has changed e.g. because of the dynamic
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    // resolution change. If so re-create the font.
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    if (iPaneHeight != paneHeight)
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    {
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        iPaneHeight = paneHeight;
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        CreateNewFont();
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    }
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    if (iFont)
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    {
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        return iFont;
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    }
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    else
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    {
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        // returns the default font if font creation has failed
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        return const_cast<CFont*>(CMIDFont::DefaultFont(EDefaultTextId));
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    }
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}
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/**
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 * CreteNewFont function creates a new iFont object.
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 * Font specification attributes are retrieved from the class member variables.
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 */
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void CMIDFont::CreateNewFont()
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{
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    // delete existing iFont object
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    const CAknLayoutFont* layFont =  CAknLayoutFont::AsCAknLayoutFontOrNull(iFont);
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    if (layFont)
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    {
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        delete layFont;
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        iFont = NULL;
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    }
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   274
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    // init spec
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    TAknFontSpecification spec(EAknLogicalFontSecondaryFont);
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    // size
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    spec.SetTextPaneHeight(iPaneHeight);
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    // italic
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    if (iItalic)
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        spec.SetPosture(EPostureItalic);
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    // bold
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    if (iBold)
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        spec.SetWeight(EStrokeWeightBold);
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   285
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    TInt err = 0;
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    DEBUG("CMIDFont::CreateNewFont - calling CreateLayoutFontFromSpecificationL");
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    TRAP(err, iFont = AknLayoutUtils::CreateLayoutFontFromSpecificationL(spec));   // Now owned by the client code
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    if (err != KErrNone)
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    {
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        DEBUG_INT("CMIDFont::CreateNewFont - Exception from AknLayoutUtils::CreateLayoutFontFromSpecificationL. Error = %d", err);
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    }
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}
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   294
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TBool CMIDFont::IsUnderlined() const
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{
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    return iUnderlined;
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}
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   299
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void CMIDFont::Dispose()
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{
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    delete this;
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}
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   304
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   305
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   306
/**
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   307
 * This function returns the height of the text pane for the current font size.
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 * The text pane height value is retrieved from the LAF.
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   309
 * If the aScaling is true and graphic scaling is effective in current device screen,
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   310
 * the font height in the original MIDlet resolution is returned.
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 */
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TInt CMIDFont::GetTextPaneHeight(TBool aScaling)
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   313
{
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   314
    // iOrigFontHeight > 0 only when orignial MIDlet resolution has been defined in .jad
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   315
    if (aScaling && iOrigFontHeight > 0 &&
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   316
            iUIManager->GetMenuHandler()->IsScalingEffectiveInCurrentScreen())
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   317
    {
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   318
        return iOrigFontHeight;
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   319
    }
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parents:
diff changeset
   320
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   321
    TInt paneHeight;
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   322
    if (iSize == MMIDFont::ESmall)
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   323
    {
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   324
        //Small size is retrieved from the form item label LAF
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   325
        paneHeight = AknLayoutScalable_Avkon::form2_midp_label_pane_t1(0).H();
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   326
    }
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   327
    else if (iSize == MMIDFont::ELarge)
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   328
    {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   329
        paneHeight = AknLayoutScalable_Avkon::form2_mdip_string_pane_t1(2,0).H();
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   330
    }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   331
    else // EMedium
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   332
    {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   333
        paneHeight = AknLayoutScalable_Avkon::form2_mdip_string_pane_t1(1,0).H();
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   334
    }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   335
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   336
    return paneHeight;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   337
}
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   338
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   339
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   340
void CMIDFont::SetOrigFontHeight()
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   341
{
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
    iOrigFontHeight = 0;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
    if (!iUIManager->GetMenuHandler()->IsScalingEnabled())
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
    {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
        return;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
    }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
    ::TSize origResolution =
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
        iUIManager->GetMenuHandler()->GetScalingParameterOrgMIDletScrSize();
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
    // ensure that resolution is in portrait orientation
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
    ::TSize resolution(Min(origResolution.iWidth, origResolution.iHeight),
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
                       Max(origResolution.iWidth, origResolution.iHeight));
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
    TInt fontSizeIndex = 0;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
    switch (iSize)
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
    {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
    case MMIDFont::ESmall:
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
        fontSizeIndex = EIndexSmallFont;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
        break;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
    case MMIDFont::EMedium:
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
        fontSizeIndex = EIndexMediumFont;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
        break;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
    case MMIDFont::ELarge:
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
        fontSizeIndex = EIndexLargeFont;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
        break;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
    default:
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
        break;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
    }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
    // These indexes are for the case that original resolution is not a known
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
    // resolution and font height needs to be calculated based on the font heights
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
    // in KFontSizes table.
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
    TInt smallerResolutionIndex = KErrNotFound;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
    TInt biggerResolutionIndex = KErrNotFound;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
    for (TInt i = 0; i < EResolutionCount && biggerResolutionIndex == KErrNotFound; ++i)
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
    {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
        if (KFontSizes[i][EIndexScreenWidth] == resolution.iWidth)
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
        {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
            iOrigFontHeight = KFontSizes[i][fontSizeIndex];
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
            return;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
        }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
        if (KFontSizes[i][EIndexScreenWidth] < resolution.iWidth)
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
        {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
            smallerResolutionIndex = i;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
        }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
        else if (KFontSizes[i][EIndexScreenWidth] > resolution.iWidth &&
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
                 biggerResolutionIndex == KErrNotFound)
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
        {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
            biggerResolutionIndex = i;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
        }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
    }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
    // Orig resolution is not a known S60 resolution, need to calculate an estimate for
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
    // original font height based on the screen width of the original resolution.
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
    if (iOrigFontHeight == 0)
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
    {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
        // First check if the original MIDlet resolution is smaller than any known
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
        // S60 resolution. If so, the original font height estimate is calculated
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
        // by using the KXXXFontRatioToScreenWidth constants.
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
        if (smallerResolutionIndex == KErrNotFound)
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
        {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
            TReal fontSizeRatio = KSmallFontRatioToScreenWidth;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
            switch (iSize)
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
            {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
            case MMIDFont::ESmall:
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
                fontSizeRatio = KSmallFontRatioToScreenWidth;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
                break;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
            case MMIDFont::EMedium:
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
                fontSizeRatio = KMediumFontRatioToScreenWidth;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
                break;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
            case MMIDFont::ELarge:
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
                fontSizeRatio = KLargeFontRatioToScreenWidth;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
                break;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
            default:
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
                break;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
            }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
            iOrigFontHeight = TReal(resolution.iWidth) / fontSizeRatio;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
            iOrigFontHeight = Max(KMinFontHeight, iOrigFontHeight);
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
        }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
        else if (biggerResolutionIndex == KErrNotFound)
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
        {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
            // Original screen width is bigger than the highest resolution in the KFontSizes table.
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
            // Use the font size defined for the highest resolution in the table.
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
            iOrigFontHeight = KFontSizes[EResolutionCount - 1][fontSizeIndex];
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
        }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
        else
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
        {
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
            // The screen width of the original MIDlet resolution is between 2 known S60 screen
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
            // widths. Calculate estimate for font height based on the heights of the 2 known resolutions.
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
            TReal fontHeightDelta = KFontSizes[biggerResolutionIndex][fontSizeIndex] -
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
                                    KFontSizes[smallerResolutionIndex][fontSizeIndex];
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
            TReal screenWidthDelta = KFontSizes[biggerResolutionIndex][EIndexScreenWidth] -
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
                                     KFontSizes[smallerResolutionIndex][EIndexScreenWidth];
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
            TReal origScreenWidthDelta = resolution.iWidth -
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
                                         KFontSizes[smallerResolutionIndex][EIndexScreenWidth];
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
            iOrigFontHeight = KFontSizes[smallerResolutionIndex][fontSizeIndex] +
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
                              ((origScreenWidthDelta / screenWidthDelta) *
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
                               fontHeightDelta);
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
        }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
    }
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
}
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
/**
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
 * @return ETrue if font is bold, EFalse if not.
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
 */
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
TBool CMIDFont::IsBold()
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
{
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
    return iBold;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
}
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
/**
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
 * @return ETrue if font is italic, EFalse if not.
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
 */
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
TBool CMIDFont::IsItalic()
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
{
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
    return iItalic;
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
}
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
// End of File
2a9601315dfc Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468