aknexeditorcontainer4.cpp

来自「国内著名嵌入式培训机构内部资料,内含一些实例代码,包括技术专题书籍」· C++ 代码 · 共 276 行

/*  Copyright (c) 2004, Nokia. All rights reserved */

// INCLUDE FILES
#include <eiklabel.h>  // for example label control
#include <barsread.h>  // for resource reader
#include <eikedwin.h>  // for CEikEdwin
#include <eikgted.h>   // for CEikGlobalTextEditor
#include <aknutils.h>  // for Fonts.

#include <AknExEditor.rsg>
#include "aknexeditor.hrh"
#include "AknExEditorContainer4.h"



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

// ----------------------------------------------------------------------------
// CAknExEditorContainer4::CAknExEditorContainer4()
// C++ default constructor can NOT contain any code, that
// might leave.
//-----------------------------------------------------------------------------
//
CAknExEditorContainer4::CAknExEditorContainer4()
: iLabel( NULL ), iGTextEd( NULL )
    {
    }

// ----------------------------------------------------------------------------
// CAknExEditorContainer4::ConstructL()
// two phased constructor
//-----------------------------------------------------------------------------
//
void CAknExEditorContainer4::ConstructL( const TRect& aRect )
    {
    CreateWindowL();

    TBuf<KBufLength> text;

    iCoeEnv->ReadResource( text, R_AKNEXEDITOR_VIEW4_LABEL1 );
    iLabel = new ( ELeave ) CEikLabel;
    iLabel->SetContainerWindowL( *this );
    iLabel->SetTextL( text );
    iLabel->SetExtent( GTEXTED_LABEL_POS, iLabel->MinimumSize() );

    TResourceReader reader;
    iCoeEnv->CreateResourceReaderLC( reader, R_AKNEXEDITOR_VIEW4_GTEXTED );
    iGTextEd = new ( ELeave ) CEikGlobalTextEditor;
    iGTextEd->SetContainerWindowL( *this );
    iGTextEd->ConstructFromResourceL( reader );
    CleanupStack::PopAndDestroy();  // Resource reader

    iGTextEd->SetExtent( GTEXTED_POS, iGTextEd->MinimumSize() );
    iGTextEd->SetAvkonWrap( ETrue );
    iGTextEd->SetFocus( ETrue );

    SetRect( aRect );
    ActivateL();
    }

// ----------------------------------------------------------------------------
// CAknExEditorContainer4::~CAknExEditorContainer4()
// Destructor
//-----------------------------------------------------------------------------
//
CAknExEditorContainer4::~CAknExEditorContainer4()
    {
    delete iLabel;
    delete iGTextEd;
    }

// ---------------------------------------------------------
// void CAknExEditorContainer4::SetSystemFontL()
// Change font style of CEikGlobalTextEditor using system font.
// ( other items were commented in a header ).
// ---------------------------------------------------------
//
void CAknExEditorContainer4::SetSystemFontL( TInt aFontEnum )
    {
    const CFont* editorFont;

    switch ( aFontEnum )
        {
        case ELatinPlain12:
            editorFont = LatinPlain12();
            break;
        case ELatinBold12:
            editorFont = LatinBold12();
            break;
        case ELatinBold13:
            editorFont = LatinBold13();
            break;
        case ELatinBold17:
            editorFont = LatinBold17();
            break;
        case ELatinBold19:
            editorFont = LatinBold19();
            break;
        case ENumberPlain5:
            editorFont = NumberPlain5();
            break;
        case EClockBold30:
            editorFont = ClockBold30();
            break;
        case ELatinClock14:
            editorFont = LatinClock14();
            break;
        default:
            return;
        }

    TCharFormat     charFormat;
    TCharFormatMask charFormatMask;

    charFormat.iFontSpec = editorFont->FontSpecInTwips();
    charFormatMask.SetAll();

    // Set font to GlobalTextEditor
    iGTextEd->ApplyCharFormatL( charFormat, charFormatMask );

    // Change label text.
    TBuf<KBufLength> sizeText;
    TBuf<KBufLength> formatText;
    iCoeEnv->ReadResource( formatText, R_AKNEXEDITOR_CONTAINER4_LABEL_FORMAT_PT );
    sizeText.Format( formatText,
                     charFormat.iFontSpec.iHeight / KTwipsPerPoint );
    TBuf<KBufLength> labelText = charFormat.iFontSpec.iTypeface.iName;
    labelText.Append( sizeText );
    iLabel->SetTextL( labelText );
    iLabel->SetExtent( GTEXTED_LABEL_POS, iLabel->MinimumSize() );
    }

// ---------------------------------------------------------
// void CAknExEditorContainer4::SetFontL()
// Change font style of CEikGlobalTextEditor.
// ( other items were commented in a header ).
// ---------------------------------------------------------
//
void CAknExEditorContainer4::SetFontL( TInt aResourceID )
    {
    // Create font
    TFontSpec* fontSpec = CreateFontSpecFromResourceL( aResourceID );
    CleanupStack::PushL( fontSpec );

    TCharFormat     charFormat;
    TCharFormatMask charFormatMask;
    CFont*  editorFont = iCoeEnv->CreateScreenFontL( *fontSpec );
    CleanupStack::PushL( editorFont );

    charFormat.iFontSpec = editorFont->FontSpecInTwips();
    charFormatMask.SetAll();

    // Set font to GlobalTextEditor
    iGTextEd->ApplyCharFormatL( charFormat, charFormatMask );

    iCoeEnv->ReleaseScreenFont( editorFont ); // Release editorFont
    CleanupStack::Pop();                    // editorFont

    // Change label text.
    TBuf<KBufLength> sizeText;
    TBuf<KBufLength> formatText;
    iCoeEnv->ReadResource( formatText, R_AKNEXEDITOR_CONTAINER4_LABEL_FORMAT_PT );
    sizeText.Format( formatText, fontSpec->iHeight / KTwipsPerPoint );
    TBuf<KBufLength> labelText = fontSpec->iTypeface.iName;
    labelText.Append( sizeText );
    iLabel->SetTextL( labelText );
    iLabel->SetExtent( GTEXTED_LABEL_POS, iLabel->MinimumSize() );

    CleanupStack::Pop();  // fontSpec

    delete fontSpec;    // Delete Font
    }

// ---------------------------------------------------------
// CAknExEditorContainer4::CreateFontSpecFromResourceL()
// Create fontSpec object
// ( other items were commented in a header ).
// ---------------------------------------------------------
//
TFontSpec* CAknExEditorContainer4::CreateFontSpecFromResourceL( TInt aResourceId )
    {
    TResourceReader reader;
    iCoeEnv->CreateResourceReaderLC( reader, aResourceId );

    HBufC*   fontName;
    TInt    fontSize;

    fontName = reader.ReadHBufCL();
    fontSize = reader.ReadInt16();

    CleanupStack::PopAndDestroy();  // for reader

    CleanupStack::PushL( fontName );

    TFontSpec* fontSpec = new TFontSpec( *fontName, fontSize );
    CleanupStack::PopAndDestroy();  // for fontName
    return fontSpec;
    }

// ---------------------------------------------------------
// CAknExEditorContainer4::SizeChanged()
// Called by framework when the view size is changed
// ( other items were commented in a header ).
// ---------------------------------------------------------
//
void CAknExEditorContainer4::SizeChanged()
    {
    }

// ---------------------------------------------------------
// CAknExEditorContainer4::CountComponentControls()
// ( other items were commented in a header ).
// ---------------------------------------------------------
//
TInt CAknExEditorContainer4::CountComponentControls() const
    {
    return KNumberOfControls; // return nbr of controls inside this container
    }

// ---------------------------------------------------------
// CAknExEditorContainer4::ComponentControl()
// ( other items were commented in a header ).
// ---------------------------------------------------------
//
CCoeControl* CAknExEditorContainer4::ComponentControl( TInt aIndex ) const
    {
    switch ( aIndex )
        {
        case EGTextEdPrompt:
            return iLabel;
        case EGTextEd:
            return iGTextEd;
        default:
            return NULL;
        }
    }

// ---------------------------------------------------------
// CAknExEditorContainer4::Draw()
// ( other items were commented in a header ).
// ---------------------------------------------------------
//
void CAknExEditorContainer4::Draw( const TRect& aRect ) const
    {
    CWindowGc& gc = SystemGc();
    gc.SetPenStyle( CGraphicsContext::ENullPen );
    gc.SetBrushColor( KRgbGray );
    gc.SetBrushStyle( CGraphicsContext::ESolidBrush );
    gc.DrawRect( aRect );
    }

// ---------------------------------------------------------
// CAknExEditorContainer4::OfferKeyEventL()
// Notify key events to the editor.
// ( other items were commented in a header ).
// ---------------------------------------------------------
//
TKeyResponse CAknExEditorContainer4::OfferKeyEventL( 
    const TKeyEvent& aKeyEvent, TEventCode aType )
    {
    return iGTextEd->OfferKeyEventL( aKeyEvent, aType );
    }


// ---------------------------------------------------------
// CAknExEditorContainer4::HandleControlEventL()
// ( other items were commented in a header ).
// ---------------------------------------------------------
//
void CAknExEditorContainer4::HandleControlEventL( 
    CCoeControl* /*aControl*/, TCoeEvent /*aEventType*/ )
    {
    }

// End of File