/**
*
* @brief Definition of CSimpleGridGamesGrid
*
* Copyright (c) EMCC Software Ltd 2003
* @version 1.0
*/
// INCLUDE FILES
// Class include
#include "SimpleGridGamesGrid.h"
// System includes
#include <akniconarray.h> // CAknIconArray
#include <aknlists.h> // AknListBoxLayouts
#include <barsread.h> // TResourceReader
//#include <simplegrid.mbg> // contains icon enumeration
#include <stringloader.h> // StringLoader
#include <gulicon.h>
#include "ImageConverterEngine.h"
#include "PublicUtility.h"
// CONSTANTS
const TInt KNumberOfIcons(5);
const TInt KTextColor = 0;//215;
const TInt KGridRectTLY = 0 ;
const TInt KGridRectBRY = 640;
const TInt KGridRectBRX = 360 ;
const TInt NumOfItemsWidth = 3 ;
const TInt NumOfItemsHeight = 5 ;
// ================= MEMBER FUNCTIONS =======================
/**
* Symbian OS 2nd phase constructor. Constructs the grd from aGridResource
* sets up the icons container in the file in aIconFileResource and draws itself.
* @param aGridResource The GRID resource
* @param aIconFileResource The resource defining the icon file name
*/
void CSimpleGridGamesGrid::ConstructL(TInt aGridResource, TInt aIconFileResource)
{
// Construct the grid from resource
TResourceReader reader;
CEikonEnv::Static()->CreateResourceReaderLC(reader, aGridResource);
ConstructFromResourceL(reader);
CleanupStack::PopAndDestroy(); // reader
SetCellSizes();
// Set up the icons
SetupGridIconsL (aIconFileResource);
// Draw the grid
SizeChanged();
}
/**
*
* Sets up the grid's icons, which are contained in a file.
*
* @param aIconFileResource the file name resource
*/
void CSimpleGridGamesGrid::SetupGridIconsL(TInt aIconFileResource)
{
// Get the name of the file containing the icons
// HBufC* iconFileName;
// iconFileName = StringLoader::LoadLC(aIconFileResource); // Pushes iconFileName onto the Cleanup Stack.
// Create an array of icons, reading them from the file
CArrayPtr<CGulIcon>* icons = new(ELeave) CAknIconArray(KNumberOfIcons);
CleanupStack::PushL(icons);
GetIconByFileName(_L("latest.jpg"),icons);
GetIconByFileName(_L("top.jpg"),icons);
GetIconByFileName(_L("category.jpg"),icons);
GetIconByFileName(_L("Bookshelf.jpg"),icons);
GetIconByFileName(_L("Search.jpg"),icons);
CleanupStack::Pop(icons);
ItemDrawer()->FormattedCellData()->SetIconArray(icons); // passing ownership of icons
}
void CSimpleGridGamesGrid::GetIconByFileName(const TDesC& aFileName,CArrayPtr<CGulIcon>* icons)
{
TFileName iFileName;
#if !defined(__WINS__) && !defined(__WINSCW__)
// Device
iFileName = aFileName;
HBufC* resoucePath = HBufC::NewLC(KMaxFileName);
TPtr resoucePtr = resoucePath->Des();
PublicUtility::GetExePath(resoucePtr);
iFileName.Insert(0, *resoucePath);
CleanupStack::PopAndDestroy(resoucePath);
#else
// Emulator
PublicUtility::GetDataPathL(iFileName);
iFileName.Append(aFileName);
#endif
CImageConverterEngine* iImageConverter = CImageConverterEngine::NewL(this);
iImageConverter->StartToDecodeL(iFileName, ETrue);
CFbsBitmap* iBitmap = iImageConverter->GetBitmap();
CGulIcon * icon = CGulIcon::NewL(iBitmap);
icons->AppendL(icon);
}
/**
*
* Sets up colors, and subcells for the grid.
*
*/
void CSimpleGridGamesGrid::SetupGrid()
{
this->SetLayoutL(EFalse, ETrue, ETrue, 3, 5, iCellSize);
this->ScrollBarFrame()->SetScrollBarVisibilityL(CEikScrollBarFrame::EOff, CEikScrollBarFrame::EOff);
// Setup text foreground and background colours to default
AknListBoxLayouts::SetupStandardGrid(*this);
// Get local copies of data we will need
CFormattedCellListBoxItemDrawer* itemDrawer = this->ItemDrawer();
TInt cellWidth = iCellSize.iWidth;
TInt cellHeight = iCellSize.iHeight;
// Set up graphics subcells
AknListBoxLayouts::SetupFormGfxCell(*this, //the grid
itemDrawer, // the grid's drawer
0, // index of the graphic within item strings
0, // left position
0, // top position
0, // right - unused
0, // bottom - unused
cellWidth, // width of graphic
cellHeight, // height of graphic
TPoint (0, 0), // start position
TPoint (cellWidth , cellHeight)); // end position
// Set up text subcells
const CFont* KFont = CEikonEnv::Static()->AnnotationFont();
TInt baseline = cellHeight - KFont->DescentInPixels() - 1;
AknListBoxLayouts::SetupFormTextCell(*this, // the grid
itemDrawer, // the grid's drawer
1, // index of text within item strings
KFont, // the font for the text
KTextColor, // the color of the text - N.B. although commented out in the header file, this is still used!
0, // left margin
0, // right margin - unused
baseline, // Baseline
cellWidth, // text width (would need to take margin into account if set, i.e. - lm)
CGraphicsContext::ECenter, // Alignment
TPoint (0, cellHeight), // start position
TPoint(cellWidth, cellHeight)); // end position
}
void CSimpleGridGamesGrid::SetCellSizes()
{
TRect MyRect(Rect());
MyRect.iTl.iY = KGridRectTLY;
MyRect.iBr.iY = KGridRectBRY;
MyRect.iBr.iX = KGridRectBRX;
// Determinate icon size
iCellSize.iWidth = MyRect.iBr.iX / NumOfItemsWidth;
iCellSize.iHeight = MyRect.iBr.iY / NumOfItemsHeight;
}
/**
*
* Called by framework when the view size is changed and by ConstructL to intialise the grid.
*
*/
void CSimpleGridGamesGrid::SizeChanged()
{
CAknGrid::SizeChanged();
SetupGrid();
}
void CSimpleGridGamesGrid::NotifyCompletionL(TInt aErr, const TDesC& aMsg)
{
//LOG(_L("CComicViewerSplashContainer::NotifyCompletionL()"));
if (aErr == KErrNone)
{
}
else
{
//PublicUtility::ShowMessageL(aMsg);
}
if (aErr && aErr != KErrNotReady)
{
//PublicUtility::ShowMessageL(aMsg);
}
}
// End of File
/**
*
* @brief Definition of CSimpleGridGamesGrid
*
* Copyright (c) EMCC Software Ltd 2003
* @version 1.0
*/
// INCLUDE FILES
// Class include
#include "SimpleGridGamesGrid.h"
// System includes
#include <akniconarray.h> // CAknIconArray
#include <aknlists.h> // AknListBoxLayouts
#include <barsread.h> // TResourceReader
//#include <simplegrid.mbg> // contains icon enumeration
#include <stringloader.h> // StringLoader
#include <gulicon.h>
#include "ImageConverterEngine.h"
#include "PublicUtility.h"
// CONSTANTS
const TInt KNumberOfIcons(5);
const TInt KTextColor = 0;//215;
const TInt KGridRectTLY = 0 ;
const TInt KGridRectBRY = 640;
const TInt KGridRectBRX = 360 ;
const TInt NumOfItemsWidth = 3 ;
const TInt NumOfItemsHeight = 5 ;
// ================= MEMBER FUNCTIONS =======================
/**
* Symbian OS 2nd phase constructor. Constructs the grd from aGridResource
* sets up the icons container in the file in aIconFileResource and draws itself.
* @param aGridResource The GRID resource
* @param aIconFileResource The resource defining the icon file name
*/
void CSimpleGridGamesGrid::ConstructL(TInt aGridResource, TInt aIconFileResource)
{
// Construct the grid from resource
TResourceReader reader;
CEikonEnv::Static()->CreateResourceReaderLC(reader, aGridResource);
ConstructFromResourceL(reader);
CleanupStack::PopAndDestroy(); // reader
SetCellSizes();
// Set up the icons
SetupGridIconsL (aIconFileResource);
// Draw the grid
SizeChanged();
}
/**
*
* Sets up the grid's icons, which are contained in a file.
*
* @param aIconFileResource the file name resource
*/
void CSimpleGridGamesGrid::SetupGridIconsL(TInt aIconFileResource)
{
// Get the name of the file containing the icons
// HBufC* iconFileName;
// iconFileName = StringLoader::LoadLC(aIconFileResource); // Pushes iconFileName onto the Cleanup Stack.
// Create an array of icons, reading them from the file
CArrayPtr<CGulIcon>* icons = new(ELeave) CAknIconArray(KNumberOfIcons);
CleanupStack::PushL(icons);
GetIconByFileName(_L("latest.jpg"),icons);
GetIconByFileName(_L("top.jpg"),icons);
GetIconByFileName(_L("category.jpg"),icons);
GetIconByFileName(_L("Bookshelf.jpg"),icons);
GetIconByFileName(_L("Search.jpg"),icons);
CleanupStack::Pop(icons);
ItemDrawer()->FormattedCellData()->SetIconArray(icons); // passing ownership of icons
}
void CSimpleGridGamesGrid::GetIconByFileName(const TDesC& aFileName,CArrayPtr<CGulIcon>* icons)
{
TFileName iFileName;
#if !defined(__WINS__) && !defined(__WINSCW__)
// Device
iFileName = aFileName;
HBufC* resoucePath = HBufC::NewLC(KMaxFileName);
TPtr resoucePtr = resoucePath->Des();
PublicUtility::GetExePath(resoucePtr);
iFileName.Insert(0, *resoucePath);
CleanupStack::PopAndDestroy(resoucePath);
#else
// Emulator
PublicUtility::GetDataPathL(iFileName);
iFileName.Append(aFileName);
#endif
CImageConverterEngine* iImageConverter = CImageConverterEngine::NewL(this);
iImageConverter->StartToDecodeL(iFileName, ETrue);
CFbsBitmap* iBitmap = iImageConverter->GetBitmap();
CGulIcon * icon = CGulIcon::NewL(iBitmap);
icons->AppendL(icon);
}
/**
*
* Sets up colors, and subcells for the grid.
*
*/
void CSimpleGridGamesGrid::SetupGrid()
{
this->SetLayoutL(EFalse, ETrue, ETrue, 3, 5, iCellSize);
this->ScrollBarFrame()->SetScrollBarVisibilityL(CEikScrollBarFrame::EOff, CEikScrollBarFrame::EOff);
// Setup text foreground and background colours to default
AknListBoxLayouts::SetupStandardGrid(*this);
// Get local copies of data we will need
CFormattedCellListBoxItemDrawer* itemDrawer = this->ItemDrawer();
TInt cellWidth = iCellSize.iWidth;
TInt cellHeight = iCellSize.iHeight;
// Set up graphics subcells
AknListBoxLayouts::SetupFormGfxCell(*this, //the grid
itemDrawer, // the grid's drawer
0, // index of the graphic within item strings
0, // left position
0, // top position
0, // right - unused
0, // bottom - unused
cellWidth, // width of graphic
cellHeight, // height of graphic
TPoint (0, 0), // start position
TPoint (cellWidth , cellHeight)); // end position
// Set up text subcells
const CFont* KFont = CEikonEnv::Static()->AnnotationFont();
TInt baseline = cellHeight - KFont->DescentInPixels() - 1;
AknListBoxLayouts::SetupFormTextCell(*this, // the grid
itemDrawer, // the grid's drawer
1, // index of text within item strings
KFont, // the font for the text
KTextColor, // the color of the text - N.B. although commented out in the header file, this is still used!
0, // left margin
0, // right margin - unused
baseline, // Baseline
cellWidth, // text width (would need to take margin into account if set, i.e. - lm)
CGraphicsContext::ECenter, // Alignment
TPoint (0, cellHeight), // start position
TPoint(cellWidth, cellHeight)); // end position
}
void CSimpleGridGamesGrid::SetCellSizes()
{
TRect MyRect(Rect());
MyRect.iTl.iY = KGridRectTLY;
MyRect.iBr.iY = KGridRectBRY;
MyRect.iBr.iX = KGridRectBRX;
// Determinate icon size
iCellSize.iWidth = MyRect.iBr.iX / NumOfItemsWidth;
iCellSize.iHeight = MyRect.iBr.iY / NumOfItemsHeight;
}
/**
*
* Called by framework when the view size is changed and by ConstructL to intialise the grid.
*
*/
void CSimpleGridGamesGrid::SizeChanged()
{
CAknGrid::SizeChanged();
SetupGrid();
}
void CSimpleGridGamesGrid::NotifyCompletionL(TInt aErr, const TDesC& aMsg)
{
//LOG(_L("CComicViewerSplashContainer::NotifyCompletionL()"));
if (aErr == KErrNone)
{
}
else
{
//PublicUtility::ShowMessageL(aMsg);
}
if (aErr && aErr != KErrNotReady)
{
//PublicUtility::ShowMessageL(aMsg);
}
}
// End of File
网上找了一圈动态创建Grid的范例，终于在一个论坛中找到点代码。这里图像时动态转换后，生成图标，然后再创建Grid.
其中的CImageConverterEngine，用symbian wiki上的imageConverter范例的CImageConverterEngine，要注意转换的时候用同步操作。
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TBool CImageConverterEngine::StartToDecodeL(const TDesC& aFileName , TBool aAsync /*= EFalse*/ )
{
//LOG(_L("CImageConverterEngine::StartToDecodeL"));
if (IsActive())
Cancel();
if(iImageDecoder)
{
delete iImageDecoder;
iImageDecoder = NULL;
}
if(!PublicUtility::CheckFileCanbeReadOrWriteL(aFileName))
return EFalse;
SetFilePathL(aFileName);
// create the decoder
iImageDecoder = CImageDecoder::FileNewL( iFs, *iFileName );
// create the destination bitmap
if(iBitmap)
{
delete iBitmap;
iBitmap = NULL;
}
iBitmap = new (ELeave) CFbsBitmap();
TRAPD(error, iBitmap->Create( iImageDecoder->FrameInfo().iOverallSizeInPixels, iImageDecoder->FrameInfo().iFrameDisplayMode ));
if(error)
return EFalse;
// start conversion to bitmap
iState = EDecoding;
iImageDecoder->Convert( &iStatus, *iBitmap );
SetActive();
if(aAsync)
StartWait();
//LOG(_L("CImageConverterEngine::StartToDecodeL--end"));
return ETrue;
}
本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/linzhiji/archive/2010/01/26/5259214.aspx