void UpdateProxyView(GPtr globals)
{
// Get some local memory for our display
// If we have valid pointers then just reuse
long memorySize = 1;
long channelSize = (gProxyRect.bottom - gProxyRect.top)
* (gProxyRect.right - gProxyRect.left);
memorySize *= channelSize;
memorySize *= NumberOfChannels(globals);
if (gChannelData == NULL)
{
gChannelData = gPSBufferSuite64->New(NULL, memorySize);
if (gChannelData == NULL)
{
gResult = memFullErr;
return;
}
}
ReadChannelDesc *pChannel = NULL;
char *pLayerData = NULL;
short channelCount = 0;
// figure out what channel(s) we are trying to manipulate
if (gViewLayerIndex == 0)
{
if (gViewAllLayerData)
pChannel = gDocDesc->mergedCompositeChannels;
else
pChannel = gDocDesc->targetCompositeChannels;
}
else
{
int16 index = gViewLayerIndex - 1;
ReadLayerDesc * layerDesc = gDocDesc->layersDescriptor;
while (index && layerDesc != NULL)
{
layerDesc = layerDesc->next;
index--;
}
if (layerDesc != NULL)
pChannel = layerDesc->compositeChannelsList;
}
// we may have a multichannel document
if (pChannel == NULL)
pChannel = gDocDesc->alphaChannels;
// figure out the rectangle of "Hello World " in proxy space
Rect outRect;
outRect.top = (short)(gPointV / gScaleFactor);
outRect.left = (short)(gPointH / gScaleFactor);
outRect.bottom = (short)(outRect.top + VSIZE / gScaleFactor * gXFactor);
outRect.right = (short)(outRect.left + HSIZE / gScaleFactor * gXFactor);
// gChannelData holds all the channels, so adjust the starting point
// accordingly. The Gaussian Blur effect is a little off in the proxy view
// because the data is scaled down for the effect.
while (pChannel != NULL && gResult == 0)
{
pLayerData = gChannelData + channelSize * channelCount++;
ReadLayerData(globals, pChannel, pLayerData, true);
HelloWorldData(pLayerData, &outRect, &gProxyRect);
if (gGaussianBlurData)
GaussianBlurEffect(globals, &outRect, &gProxyRect, pLayerData);
pChannel = pChannel->next;
}
// Rest of the channels hold less data
memorySize /= NumberOfChannels(globals);
// are we showing another layer, all the merged channels or just the target
if (gViewLayerIndex == 0)
{
if (gViewAllLayerData)
pChannel = gDocDesc->mergedTransparency;
else
pChannel = gDocDesc->targetTransparency;
}
else
{
int16 index = gViewLayerIndex - 1;
ReadLayerDesc * layerDesc = gDocDesc->layersDescriptor;
while (index && layerDesc != NULL)
{
layerDesc = layerDesc->next;
index--;
}
if (layerDesc != NULL)
pChannel = layerDesc->transparency;
}
if (pChannel != NULL)
{
if (gMaskData == NULL)
{
gMaskData = gPSBufferSuite64->New(NULL, memorySize);
if (gMaskData == NULL)
{
gResult = memFullErr;
return;
}
}
// Read in the mask and set it so we can see the channels
ReadLayerData(globals, pChannel, gMaskData, true);
HelloWorldMaskData(gMaskData, &outRect, &gProxyRect, false);
}
// Do we have a selection, I don't do anything with it except in the proxy view
// I ignore the selection when actually doing the effect. You may want to add
// additional logic to not do this.
if (gDocDesc->selection != NULL)
{
if (gSelectionData == NULL)
{
gSelectionData = gPSBufferSuite64->New(NULL, memorySize);
if (gSelectionData == NULL)
{
gResult = memFullErr;
return;
}
}
ReadLayerData(globals, gDocDesc->selection, gSelectionData, true);
}
// Make the selection look like a mask
MergeSelectionAndMaskIntoMask(globals);
// This shows how to set up the overlay information in your proxy view.
// We used this for the painting in Extract. You may want to play with
// that plug in for a better use of overlays.
if (gOverlayData == NULL)
{
gOverlayData = gPSBufferSuite64->New(NULL, memorySize);
if (gOverlayData == NULL)
{
gResult = memFullErr;
return;
}
}
HelloWorldMaskData(gOverlayData, &outRect, &gProxyRect, true);
}
/*-------------------------------------------------------------------*
| dxfReadTableType |
| Inputs: |
| HDXF hDxf = handle to the openning DXF file structure |
| LPVOID pTableType = pointer to table type structure |
| Output: TableType Code else TAB_NOTSET |
*-------------------------------------------------------------------*/
DWORD dxfReadTableType( HDXF hDxf, LPVOID pTableType )
{
PDXF pDxf;
int GCode;
char strValue[2048];
DWORD result;
// Initialize pDxf ------------------
if((pDxf = InitilizePDXF(hDxf))==NULL)
return FALSE;
// Check if current section is TABLES
if(pDxf->Read.CurrentSection!=SEC_TABLES)
{
// Current section is not TABLES
GlobalUnlock(hDxf);
return TAB_NOTSET;
}
// Looking for next table type if CurrentTableType==TAB_NOTSET
if(pDxf->Read.CurrentTableType==TAB_NOTSET)
{
if(dxfFindNextTableType(hDxf)==TAB_NOTSET)
{
pDxf->Read.CurrentSection = SEC_NOTSET;
GlobalUnlock(hDxf);
return TAB_NOTSET;
}
}
// Read current table type data
result = TAB_NOTSET;
switch(pDxf->Read.CurrentTableType)
{
case TAB_DIMSTYLE:
if(!FindParamFromDxfFile(pDxf, 0, "DIMSTYLE"))
break;
else
{
if(ReadDimStyleData(pDxf, (PDXFDIMSTYLE)pTableType))
result = TAB_DIMSTYLE;
}
break;
case TAB_LAYER:
if(!FindParamFromDxfFile(pDxf, 0, "LAYER"))
break;
else
{
if(ReadLayerData(pDxf, (PDXFLAYER)pTableType))
result = TAB_LAYER;
}
break;
case TAB_LTYPE:
if(!FindParamFromDxfFile(pDxf, 0, "LTYPE"))
break;
else
{
if(ReadLTypeData(pDxf, (PDXFLTYPE)pTableType))
result = TAB_LTYPE;
}
break;
case TAB_STYLE:
if(!dxfFindParam( hDxf, 0, "STYLE" ))
break;
else
{
if(ReadStyleData(pDxf, (PDXFSTYLE)pTableType))
result = TAB_STYLE;
}
break;
}
dxfStorePos(pDxf);
dxfReadParam(hDxf, GCode, strValue);
if((GCode==0) && (strcmp(strValue, "ENDTAB")==0))
{
pDxf->Read.CurrentTableType = TAB_NOTSET;
// while(dxfReadTableTypeName(hDxf)==TAB_NOTSET)
// {
dxfStorePos(pDxf);
dxfReadParam(hDxf, GCode, strValue);
if((GCode==0) && (strcmp(strValue, "ENDSEC")==0))
{
pDxf->Read.CurrentSection = SEC_NOTSET; // Tables section has been finished
// break;
}
else
dxfRestorePos(pDxf);
// }
}
else
dxfRestorePos(pDxf);
// UnInitilize hDxf -----------------
UnInitilizePDXF(hDxf);
return result;
}
void DoEffect(GPtr globals)
{
// Get a buffer to hold each channel as we process
char *pLayerData = gPSBufferSuite64->New(NULL,
VSIZE * HSIZE * gXFactor * gXFactor);
if (pLayerData == NULL)
return;
// Start with the first target composite channel
ReadChannelDesc *pChannel = gDocDesc->targetCompositeChannels;
// we may have a multichannel document
if (pChannel == NULL)
pChannel = gDocDesc->alphaChannels;
// Get some information for the progress bar
int32 done = 0;
int32 total = NumberOfChannels(globals) + 1;
// Loop through each of the channels
while (pChannel != NULL && gResult == 0)
{
// Update the progress bar
PIUpdateProgress(done++, total);
// Read in this channel data, we actually don't need this data
// but I will read it in anyway, it is an example you know
ReadLayerData(globals, pChannel, pLayerData, false);
// Stamp the "Hello World" into the data buffer
HelloWorldData(globals, pLayerData);
// Decide if we should blur our effect or just write out the
// data. GaussianBlurEffect() will use a new channel port
if (gGaussianBlurData)
{
Rect write_rect;
write_rect.top = gPointV;
write_rect.left = gPointH;
write_rect.bottom = (short)(gPointV + VSIZE * gXFactor);
write_rect.right = (short)(gPointH + HSIZE * gXFactor);
GaussianBlurEffect(globals, &write_rect, pLayerData);
}
WriteLayerData(globals, pChannel, pLayerData);
// off to the next channel
pChannel = pChannel->next;
}
// Update the progress bar
PIUpdateProgress(done++, total);
// now update the transparency information
// this will be non null for layered data
pChannel = gDocDesc->targetTransparency;
if (gResult == 0)
{
// Read in this channel data, we actually don't need this data
// but I will read it in anyway, it is an example you know
ReadLayerData(globals, pChannel, pLayerData, false);
// Stamp the "Hello World" into the data buffer
HelloWorldMaskData(globals, pLayerData);
// write out the channel mask
WriteLayerData(globals, pChannel, pLayerData);
}
// Update the progress bar
PIUpdateProgress(done++, total);
// dispose of that temp buffer we have been using
gPSBufferSuite64->Dispose((char**)&pLayerData);
}