C++ Page::GetPageRect方法代码示例

/********************************************************************************************

>	BOOL AIBitmapProcessor::DecodeXI( AI5EPSFilter& filter )

	Author:		Colin_Barfoot (Xara Group Ltd) <[email protected]>
	Created:	23/03/00
	Returns:	TRUE if the definition was processed, 
				FALSE if not used by this filter..
	Purpose:	Decodes the EPS XI, bitmap definition in an Illustrator 5 file

	The format of the operator is:

	[ a b c d tx ty ] llx lly urx ury h w bits ImageType AlphaChannelCount reserved bin-ascii ImageMask XI

********************************************************************************************/
BOOL AIBitmapProcessor::DecodeXI( AI5EPSFilter& filter )
{
	// Graeme (18/4/00) - This code isn't very pretty, but it's necessary because of the way
	// in which the bitmap is stored. If I try a GetCoordPair () to get the bitmap positions,
	// the image will be misrendered because the transformation should take place due to the
	// tx and ty components of the matrix. Note also that the bitmap's position in Adobe
	// Illustrator is taken from the top left corner, whilst we use the bottom left.

	/////////////////
	// Get the page origin.
	/////////////////

	// Graeme (18/4/00) - Declare variables to get the origin of the page within Camelot's
	// co-ordinate space.
	Document	*pDocument	= filter.GetDocument ();
	Spread		*pSpread	= pDocument->FindFirstSpread ();
	Page		*pPage		= pSpread->FindFirstPageInSpread ();
	DocCoord	Origin		= pPage->GetPageRect ().lo;

	/////////////////
	// decode the bitmap parameters
	/////////////////

	Matrix ImageMatrix;
	DocCoord Translation;

	INT32 h, w, bits, ImageType, AlphaChannelCount, reserved, bin_ascii, ImageMask;
	INT32 llx, lly, urx, ury;

	INT32 nLength = 0;
	INT32 nLineLength = 0;
	INT32 nMaxLineOffset = 0;

	INT32 nChannels = 0;

	NodeBitmap* pNodeBitmap = NULL;
	DocCoord p;

	// Graeme (18/4/00) - I've replaced the Pop with PopCoordPair for extracting the
	// bounding co-ordinates of the bitmap. This means that they will be scaled up
	// into the Xara co-ordinate space. I've also reversed the popping of h and w
	// from the stack - their order is incorrect in the AI documentation.
	if (	!filter.GetStack().Pop(&ImageMask) 	  || 
			!filter.GetStack().Pop(&bin_ascii) || 
			!filter.GetStack().Pop(&reserved) || 
			!filter.GetStack().Pop(&AlphaChannelCount) || 
			!filter.GetStack().Pop(&ImageType) || 
			!filter.GetStack().Pop(&bits) || 
			!filter.GetStack().Pop(&h) || 
			!filter.GetStack().Pop(&w) || 
			!filter.GetStack().PopCoord(&ury) || 
			!filter.GetStack().PopCoord(&urx) || 
			!filter.GetStack().PopCoord(&lly) || 
			!filter.GetStack().PopCoord(&llx) || 
			!filter.GetStack().Pop( &ImageMatrix, TRUE )
		)
		goto EPSError;

	/////////////////
	// create space for the tentative bitmap
	/////////////////

	///////////////////
	//	ImageType gives the number of channels per pixel
	//	bits is the bits per channel
	//	However we will convert CMYK bitmaps to RGB
	///////////////////

	switch ( ImageType )
	{
		case 1:	// greyscale
			nChannels = 1;
			break;
		case 3:	// rgb
			nChannels = 3;
			break;
		case 4:	// CMYK
			nChannels = 3;
			break;
		default: // unknown
			goto EPSError;
	}

	mpNewBitmap = new KernelBitmap( w, h, bits * nChannels, 96 );
	if ( !mpNewBitmap )
//.........这里部分代码省略.........

void BitmapEffectAtom::Test2(UndoableOperation * Op)
{
	 
	BOOL CarryOn=TRUE;
	Range Sel(*(GetApplication()->FindSelection()));

	Node* FirstSelectedNode = Sel.FindFirst(); 
	if (FirstSelectedNode != NULL) // No nodes selected so End
	{
	    Node* CurrentNode = FirstSelectedNode;       
	    Node* NextCurrent; 
	    
	    // Do all bitmaps
		while ((CurrentNode != NULL) && CarryOn)
		{
			NextCurrent = Sel.FindNext(CurrentNode);
	       	if  ( (CurrentNode->IsSelected()) && (CurrentNode->GetRuntimeClass() == CC_RUNTIME_CLASS(NodeBitmap)) ) 
	       	{         
				KernelBitmap * pBitmap = ((NodeBitmap *)(CurrentNode))->GetBitmap();
				BitmapInfo BMInfo;
				UINT32 bpp;
				pBitmap->ActualBitmap->GetInfo(&BMInfo);
				bpp=BMInfo.PixelDepth;
		   		
  				TRACEUSER( "Alex", _T("Bitmap found %d bpp\n"),bpp);

				if ((bpp==32) || TRUE)
				{
					CarryOn = FALSE;
					NodeBitmap *pNodeBitmap = new NodeBitmap;
					if ((pNodeBitmap == NULL) || (!pNodeBitmap->SetUpPath(12,12)))
						return;

					Spread *pSpread;
					DocCoord Origin;

					// For now, position Draw objects on 1st page of spread 1
					Node *pNode = (Document::GetSelected())->GetFirstNode()->FindNext()->FindFirstChild();
					while ((pNode != NULL) && (!pNode->IsKindOf(CC_RUNTIME_CLASS(Chapter))))
						pNode = pNode->FindNext();
		
					ENSURE(pNode->IsKindOf(CC_RUNTIME_CLASS(Chapter)), 
						   "Filter::GetFirstSpread(): Could not find Chapter");
					Chapter *pChapter = (Chapter *) pNode;
	
					// pSpread is a child of pChapter
					pSpread = (Spread *) pChapter->FindFirstChild();
					ENSURE(pSpread->IsKindOf(CC_RUNTIME_CLASS(Spread)),
						   "Filter::GetFirstSpread(): Could not find Spread");

					Page *pPage = (Page *) pSpread->FindFirstPageInSpread();
					ENSURE(pPage->IsKindOf(CC_RUNTIME_CLASS(Page)),
						   "BaseBitmapFilter::DoImport(): Could not find first Page");
		
					// Use bottom left of page as origin
					DocRect PageRect = pPage->GetPageRect();
					Origin = PageRect.lo;
	
					KernelBitmap* kb = new KernelBitmap(BMInfo.PixelWidth,BMInfo.PixelHeight,32,100);
					// Get a new bitmap object for this node.
					pNodeBitmap->GetBitmapRef()->Attach(kb);
					if (pNodeBitmap->GetBitmap() != kb)
					{
						// It didn't use the bitmap we gave it, so we can delete it
						delete kb;
					}
						
					ENSURE(pNodeBitmap->GetBitmap()->ActualBitmap != NULL, "No bitmap object found!");
					
					// Import worked - try to add the bitmap object into the tree.
					// First, set the rectangle to the right size for the bitmap...
					BitmapInfo Info;
					pNodeBitmap->GetBitmap()->ActualBitmap->GetInfo(&Info);

					DocRect BoundsRect;
					BoundsRect.lo = Origin;
					BoundsRect.hi.x = BoundsRect.lo.x + Info.RecommendedWidth;
					BoundsRect.hi.y = BoundsRect.lo.y + Info.RecommendedHeight;

					// And set this in our bitmap node
					pNodeBitmap->CreateShape(BoundsRect);

					// Apply some default attrs for the bitmap
					// This Must be done before the NodeBitmap is inserted into the tree
					if (!pNodeBitmap->ApplyDefaultBitmapAttrs(Op))
					{
						return;
					}
					
					// Insert the node, but don't invalidate its region
					if (!Op->DoInsertNewNode(pNodeBitmap, pSpread, FALSE))
					{
						// It didn't work - delete the sub-tree we just created, and report error.
						delete pNodeBitmap;
						return;
					}
									
					// Invalidate the region
					Op->DoInvalidateNodeRegion(pNodeBitmap, TRUE, FALSE);

//.........这里部分代码省略.........

/********************************************************************************************

>	BOOL MakeBitmapFilter::InsertBitmapIntoDocument(UndoableOperation *pOp, KernelBitmap* KernelBmp, Document* DestDoc)

	Author:		Will_Cowling (Xara Group Ltd) <[email protected]>
	Created:	11/6/96
	Purpose:	Exports the current selection as a bitmap, via the virtual fns of the
				inherited class.
	Returns:	TRUE if worked, FALSE if failed.
	SeeAlso:	GetExportOptions; PrepareToExport; ExportRenderNodes; CleanUpAfterExport;

********************************************************************************************/
BOOL MakeBitmapFilter::InsertBitmapIntoDocument(UndoableOperation *pOp, KernelBitmap* KernelBmp, Document* DestDoc)
{
	Spread *pSpread;
	DocCoord Origin;

	// Remember the selection rect, before we change it
	DocRect SelRect = GetApplication()->FindSelection()->GetBoundingRect();

	// For now, position Draw objects on 1st page of spread 1
PORTNOTE("spread", "Multi-spread warning!")
	pSpread = GetFirstSpread(DestDoc);
	Page *pPage = (Page *) pSpread->FindFirstPageInSpread();
	ERROR3IF(!pPage->IsKindOf(CC_RUNTIME_CLASS(Page)),
		   "MakeBitmapFilter::InsertBitmapIntoDocument: Could not find first Page");

	// Use bottom left of page as origin
	DocRect PageRect = pPage->GetPageRect();
	Origin.x = PageRect.lo.x;
	Origin.y = PageRect.hi.y;

	// Get a new NodeBitmap object to import into.
	NodeBitmap *pNodeBitmap = new NodeBitmap;
	if ((pNodeBitmap == NULL) || (!pNodeBitmap->SetUpPath(12,12)))
		return FALSE;

	// Attach the Imported Bitmap to our Node
	pNodeBitmap->GetBitmapRef()->Attach(KernelBmp, DestDoc); //GetDocument());
	if (pNodeBitmap->GetBitmap() != KernelBmp)
		delete KernelBmp; // It didn't use the bitmap we gave it, so we can delete it

	// Import worked - try to add the bitmap object into the tree.
	// First, set the rectangle to the right size for the bitmap...
	BitmapInfo Info;
	pNodeBitmap->GetBitmap()->ActualBitmap->GetInfo(&Info);

	DocRect BoundsRect;
	BoundsRect.lo = Origin;
	BoundsRect.hi.x = BoundsRect.lo.x + Info.RecommendedWidth;
	BoundsRect.hi.y = BoundsRect.lo.y + Info.RecommendedHeight;

	// And set this in our bitmap node
	pNodeBitmap->CreateShape(BoundsRect);

	// Make sure that there is a layer to put the bitmap onto
	if (!MakeSureLayerExists(DestDoc))
	{
		// There is no layer and one could not be made, so we will have to fail
		delete pNodeBitmap;
		return FALSE;
	}

	// Set the default attrs
	// This MUST be done before the NodeBitmap is Inserted into the tree
	if (!pNodeBitmap->ApplyDefaultBitmapAttrs(pOp))
		return FALSE;

	// Insert the node, but don't invalidate its region
	if (!pOp->DoInsertNewNode(pNodeBitmap, pSpread, FALSE))
	{
		// It didn't work - delete the sub-tree we just created, and report error.
		delete pNodeBitmap;
		return FALSE;
	}

	// bitmap is currently positioned so its bottom left hand
	// corner is at the top left of the page

	// By default we'll move it down so the top-left of the bitmap is on the top-left of the page
	INT32 XTranslate = 0;
	INT32 YTranslate = -Info.RecommendedHeight;

	ClickModifiers ClickMods = ClickModifiers::GetClickModifiers();

	if (ClickMods.Adjust && !SelRect.IsEmpty())
	{
		// If shift is down, then we'll try and place the bitmap exactly on top of the selection
		DocCoord SelectionCentre(SelRect.lo.x + (SelRect.Width()/2), SelRect.lo.y + (SelRect.Height()/2));

		XTranslate = SelectionCentre.x - Origin.x - (Info.RecommendedWidth/2);
		YTranslate = SelectionCentre.y - Origin.y - (Info.RecommendedHeight/2);
	}
	else
	{
		// Otherwise we'll try and centre it within the current view
		Spread* pCurrentSpread;
		DocCoord ViewCentre;

		if (FindCentreInsertionPosition(&pCurrentSpread, &ViewCentre))
//.........这里部分代码省略.........

BOOL OpBackground::DoMakePageBackground(UndoableOperation * pOp, Spread * pSpread, KernelBitmap * pBitmap,
										DocColour * pDocColour)
{
	TRACEUSER("Gerry", _T("OpBackground::DoMakePageBackground"));

	// Our inputs are actually set up in the class variables, so check them
	ERROR2IF(pSpread == NULL || pOp == NULL,FALSE,"DoMakePageBackground Bad params!");
	ERROR2IF(pDocColour == NULL && pBitmap == NULL,FALSE,"DoMakePageBackground Bad params!");

	BOOL	ok		= TRUE;
	Page	*pPage	= pSpread->FindFirstPageInSpread ();
	DocRect	Bounds	= pPage->GetPageRect ();

	// If there's a transparent background colour, just hide the existing node.
	if ( pDocColour != NULL && pDocColour->IsTransparent () )
	{
		Layer*	pOldLayer	= pSpread->FindFirstPageBackgroundLayer ();

		// Attempt to remove the old background layer.
		if ( pOldLayer != NULL )
		{
			TRACEUSER("Gerry", _T("Removing old background"));
			if ( !pOp->DoHideNode(pOldLayer, TRUE ) )
			{
				// Something went wrong, so handle the error.
				ERROR3( "OpBackground failed to hide the old page background" );
				pOp->FailAndExecute ();
				ok = FALSE;
			}
		}
	}

	// Otherwise create a new background layer.
	else
	{
		TRACEUSER("Gerry", _T("Creating new background"));
		Layer* pBackgroundLayer = DoCreateBackgroundLayer(pOp, pSpread);

		if (pBackgroundLayer == NULL)
		{
			ERROR3("Something went wrong with the layer creation");
			pOp->FailAndExecute();
			ok = FALSE;
		}
		else
		{
			// Try and find an existing page filling rectangle on this layer
			NodeRegularShape * pShape = DoFindPageRectangle(pSpread, pBackgroundLayer);

			// If not found then create a new one
			if (pShape != NULL)
			{
				// Hide the old version of the rectangle
				if (!pOp->DoHideNode(pShape, TRUE))
				{
					ERROR3("OpBackground failed to hide the old node");
					pOp->FailAndExecute();
					ok = FALSE;
				}
			}

			if (ok)
			{
				// Make a new rectangle of the correct size
				pShape = DoCreateRectangle(pSpread);

				// Apply the bitmap or the colour to it before we insert it into the tree.
				if (pDocColour)
				{
					// Set the colour to be the background.
					ok = ApplyDocColour(pDocColour, pShape);
				}
				else if (pBitmap)
				{
					ok = ApplyBitmap(pBitmap, pShape);
				}
				else
				{
					ERROR3("OpBackground Haven't got anything to apply");
					pOp->FailAndExecute();
					ok = FALSE;
				}

				// Apply a useful set of default attibutes on top of the fill colour
				// or bitmap fill.
				if ( pShape != NULL )
				{
					ApplyDefaultAttributes(pShape);
				}
			}

			// We must make the layer unlocked so that we don't get the stupid
			// inserting on locked layer message
			pBackgroundLayer->SetLocked(FALSE);

			// And now insert it into the background layer
			if (ok && !pOp->DoInsertNewNode(pShape, pBackgroundLayer, FIRSTCHILD,FALSE,
											FALSE,FALSE,FALSE))
			{
				delete pShape;
//.........这里部分代码省略.........