void PTRecolorAction::DoIt()
{
if ( mTable )
{
SUOffscreen *currentBuffer = mSettings.currentBuffer;
mSettings.thePaintView->CopyToUndo();
mSettings.thePaintView->SelectNone();
/*
create a new buffer the same size as the image but with
a depth of 8-bits. use the specified color table as the
color table.
*/
SInt32 width = currentBuffer->GetWidth();
SInt32 height = currentBuffer->GetHeight();
SUOffscreen *newBuffer = SUOffscreen::CreateBuffer( width, height, kRecolorDepth, mTable );
/*
increase the inverse table size from 4 to 5 bits.
this gives substantially better color matching.
*/
newBuffer->IncreaseInverseTableSize();
/*
Copy the image to the 8-bit buffer to downsample the colors
and then back to the original 32-bit one
*/
newBuffer->CopyFrom( currentBuffer );
currentBuffer->CopyFrom( newBuffer );
delete newBuffer;
// update the canvas
mSettings.theCanvas->DrawFrom( currentBuffer );
}
this->PostAsAction();
}
/*===============================================
InitializeFromResource
================================================*/
void PTPatternView::InitializeFromResource( RFMap *inMap, ResType inResType, ResIDT inResID )
{
StSaveGWorld aSaver;
StSaveResFile aSaver2;
SUOffscreen *colorImage = nil, *bwImage = nil;
Handle h = nil;
try
{
mResourceType = inResType;
/**************************************************
get the raw resource handle
**************************************************/
RFResource *theRes = inMap->FindResource( inResType, inResID, false );
ThrowIfNil_( theRes );
h = theRes->GetResData();
ThrowIfNil_( h );
/**************************************************
draw the pattern(s) into bitmaps
**************************************************/
switch( inResType )
{
case ImageType_PixPat:
this->ParseColorPattern( h, &colorImage, &bwImage );
mAllowImageResizing = true;
break;
case ImageType_Pattern:
this->ParseBWPattern( h, &bwImage );
break;
default:
LException::Throw( err_UnknownDataType );
}
/**************************************************
resize the sample well if the color pattern is bigger than 8x8
**************************************************/
if ( colorImage )
{
SInt32 width = colorImage->GetWidth();
SInt32 height = colorImage->GetHeight();
// save these _now_ because SetImage() will trigger a call to
// GetZoomFactor()
mPixPatWidth = width;
mPixPatHeight = height;
this->ResizeSampleWell( width, height );
this->SetImage( colorImage, PTResize_All, redraw_Later );
mColorSample->SetBuffer( colorImage, redraw_Dont );
colorImage = nil; // because it belongs to the sample pane now
mColorSample->SetTarget( true, redraw_Dont );
mCurrentSamplePane = mColorSample;
}
else
{
this->SetImage( bwImage, PTResize_All, redraw_Later );
mCurrentSamplePane = mBWSample;
mBWSample->SetTarget( true, redraw_Dont );
}
mBWSample->SetBuffer( bwImage, redraw_Dont );
bwImage = nil; // because it belongs to the sample pane now
}
catch( ... )
{
delete( colorImage );
delete( bwImage );
SUMiscUtils::DisposeHandle( h );
throw;
}
SUMiscUtils::DisposeHandle( h );
}
