C++ CG32bitImage::Create方法代码示例

void CopyGalacticMapToClipboard (HWND hWnd, CGalacticMapPainter *pPainter)
	{
    //  Save some parameters

    RECT rcOldView = pPainter->GetViewport();
    int xOldCenter, yOldCenter;
    pPainter->GetPos(&xOldCenter, &yOldCenter);
    int iOldScale = pPainter->GetScale();

	//	Compute the size of the map

	RECT rcView;
	rcView.left = 0;
	rcView.top = 0;
	rcView.right = pPainter->GetWidth();
	rcView.bottom = pPainter->GetHeight();

	//	Create a bitmap of the appropriate size

	CG32bitImage FullMap;
	FullMap.Create(RectWidth(rcView), RectHeight(rcView));

	//	Paint

    pPainter->SetViewport(rcView);
    pPainter->SetScale(100);
    pPainter->SetPos(0, 0);
	pPainter->Paint(FullMap);

	//	Copy to cliboard

	FullMap.CopyToClipboard();

    //  Restore

    pPainter->SetScale(iOldScale);
    pPainter->SetViewport(rcOldView);
    pPainter->SetPos(xOldCenter, yOldCenter);
	}

void GenerateSnapshot (CUniverse &Universe, CXMLElement *pCmdLine)
	{
	ALERROR error;
	int i;

	//	Get some parameters

	int iInitialUpdateTime = pCmdLine->GetAttributeIntegerBounded(CONSTLIT("initialUpdate"), 0, -1, 10);
	int iUpdateTime = pCmdLine->GetAttributeInteger(CONSTLIT("wait"));
	bool bObjOnly = pCmdLine->GetAttributeBool(CONSTLIT("objOnly"));

	//	Criteria

	CString sNode = pCmdLine->GetAttribute(CONSTLIT("node"));
	CString sCriteria = pCmdLine->GetAttribute(CONSTLIT("criteria"));

	//	Number of snapshots

	int iTotalCount = pCmdLine->GetAttributeIntegerBounded(CONSTLIT("count"), 1, -1, 1);

	//	Output

	int cxWidth;
	int cyHeight;
	if (pCmdLine->FindAttributeInteger(CONSTLIT("size"), &cxWidth))
		{
		cyHeight = cxWidth;
		}
	else
		{
		cxWidth = 1024;
		cyHeight = 1024;
		}

	//	Paint flags

	DWORD dwPaintFlags = 0;
	if (pCmdLine->GetAttributeBool(CONSTLIT("noStars")))
		dwPaintFlags |= CSystem::VWP_NO_STAR_FIELD;

	//	Output file

	CString sFilespec = pCmdLine->GetAttribute(CONSTLIT("output"));
	if (!sFilespec.IsBlank())
		sFilespec = pathStripExtension(sFilespec);

	//	Output image

	CG32bitImage Output;
	Output.Create(cxWidth, cyHeight);

	//	Update context

	SSystemUpdateCtx Ctx;
	Ctx.bForceEventFiring = true;
	Ctx.bForcePainted = true;

	RECT rcViewport;
	rcViewport.left = 0;
	rcViewport.top = 0;
	rcViewport.right = cxWidth;
	rcViewport.bottom = cyHeight;

	//	Loop over all systems until we find what we're looking for

	int iLoops = 20;
	int iNodeIndex = 0;
	int iSnapshotIndex = 0;
	CTopologyNode *pNode = Universe.GetTopologyNode(iNodeIndex);
	while (true)
		{
		//	Create the system

		CSystem *pSystem;
		if (error = Universe.CreateStarSystem(pNode, &pSystem))
			{
			printf("ERROR: Unable to create star system.\n");
			return;
			}

		//	If this is the node we want, then search

		CSpaceObject *pTarget;
		if (sNode.IsBlank() || strEquals(sNode, pNode->GetID()))
			{
			printf("Searching %s...\n", pNode->GetSystemName().GetASCIIZPointer());

			//	Set the POV

			CSpaceObject *pPOV = pSystem->GetObject(0);
			Universe.SetPOV(pPOV);
			pSystem->SetPOVLRS(pPOV);

			//	Prepare system

			Universe.UpdateExtended();
			Universe.GarbageCollectLibraryBitmaps();

			//	Update for a while

//.........这里部分代码省略.........

//.........这里部分代码省略.........

	int cxDesiredWidth;
	if (pCmdLine->FindAttributeInteger(CONSTLIT("width"), &cxDesiredWidth))
		cxDesiredWidth = Max(512, cxDesiredWidth);
	else
		cxDesiredWidth = 1280;

	//	Spacing

	int cxSpacing = pCmdLine->GetAttributeInteger(CONSTLIT("xSpacing"));
	int cxExtraMargin = pCmdLine->GetAttributeInteger(CONSTLIT("xMargin"));
	int cxImageMargin = 2 * pCmdLine->GetAttributeInteger(CONSTLIT("xImageMargin"));

	//	Font for text

	CString sTypeface;
	int iSize;
	bool bBold;
	bool bItalic;

	if (!CG16bitFont::ParseFontDesc(pCmdLine->GetAttribute(CONSTLIT("font")),
			&sTypeface,
			&iSize,
			&bBold,
			&bItalic))
		{
		sTypeface = CONSTLIT("Arial");
		iSize = 10;
		bBold = false;
		bItalic = false;
		}

	CG16bitFont NameFont;
	NameFont.Create(sTypeface, -PointsToPixels(iSize), bBold, bItalic);
	CG32bitPixel rgbNameColor = CG32bitPixel(255, 255, 255);

	//	Rotation

	int iRotation = pCmdLine->GetAttributeInteger(CONSTLIT("rotation"));

	//	Output file

	CString sFilespec = pCmdLine->GetAttribute(CONSTLIT("output"));
	if (!sFilespec.IsBlank())
		sFilespec = pathAddExtensionIfNecessary(sFilespec, CONSTLIT(".bmp"));

	//	Generate a sorted table of types

	TSortMap<CString, SEntryDesc> Table;
	for (i = 0; i < Universe.GetDesignTypeCount(); i++)
		{
		CDesignType *pType = Universe.GetDesignType(i);
		SEntryDesc NewEntry;

		//	Make sure we match the criteria

		if (!pType->MatchesCriteria(Criteria))
			continue;

		//	Figure stuff stuff out based on the specific design type

		switch (pType->GetType())
			{
			case designItemType:
				{
				CItemType *pItemType = CItemType::AsType(pType);

//.........这里部分代码省略.........

	//	Loop over all satellites and get metrics

	TArray<SSatImageDesc> SatImages;
	for (i = 0; i < pSatellites->GetContentElementCount(); i++)
		{
		CXMLElement *pSatDesc = pSatellites->GetContentElement(i);
		if (!pSatDesc->FindAttribute(SEGMENT_ATTRIB)
				|| !strEquals(STATION_TAG, pSatDesc->GetTag()))
			continue;

		//	Get the type of the satellite

		CStationType *pSatType = g_pUniverse->FindStationType(pSatDesc->GetAttributeInteger(TYPE_ATTRIB));
		if (pSatType == NULL)
			continue;

		//	Prepare the image for the satellite

		SSatImageDesc *pSatImage = SatImages.Insert();
		pSatType->SetImageSelector(InitCtx, &pSatImage->Selector);

		//	If we have an image variant, then set it

		int iVariant;
		if (pSatDesc->FindAttributeInteger(IMAGE_VARIANT_ATTRIB, &iVariant))
			{
			IImageEntry *pRoot = pSatType->GetImage().GetRoot();
			DWORD dwID = (pRoot ? pRoot->GetID() : DEFAULT_SELECTOR_ID);

			pSatImage->Selector.DeleteAll();
			pSatImage->Selector.AddVariant(dwID, iVariant);
			}

		pSatImage->pImage = &pSatType->GetImage(pSatImage->Selector, CCompositeImageModifiers());

		//	Now get the offset

		pSatImage->xOffset = pSatDesc->GetAttributeInteger(X_OFFSET_ATTRIB);
		pSatImage->yOffset = pSatDesc->GetAttributeInteger(Y_OFFSET_ATTRIB);

		//	Compute the satellite rect

		RECT rcSatImage = pSatImage->pImage->GetImageRect();
		RECT rcSatBounds;
		rcSatBounds.left = pSatImage->xOffset - (RectWidth(rcSatImage) / 2);
		rcSatBounds.top = -pSatImage->yOffset - (RectHeight(rcSatImage) / 2);
		rcSatBounds.right = rcSatBounds.left + RectWidth(rcSatImage);
		rcSatBounds.bottom = rcSatBounds.top + RectHeight(rcSatImage);

		//	Increase the size of the bounds

		rcBounds.left = Min(rcBounds.left, rcSatBounds.left);
		rcBounds.right = Max(rcBounds.right, rcSatBounds.right);
		rcBounds.top = Min(rcBounds.top, rcSatBounds.top);
		rcBounds.bottom = Max(rcBounds.bottom, rcSatBounds.bottom);
		}

	//	If no segments, then we just return the basic image

	if (SatImages.GetCount() == 0)
		{
		Entry.pImage = pMainImage;
		return;
		}

	//	Create an image that will hold the composite

	CG32bitImage *pCompositeImage = new CG32bitImage;
	pCompositeImage->Create(RectWidth(rcBounds), RectHeight(rcBounds), CG32bitImage::alpha8, CG32bitPixel::Null());
	int xCenter = -rcBounds.left;
	int yCenter = -rcBounds.top;

	//	Paint the main image

	pMainImage->PaintImage(*pCompositeImage, xCenter, yCenter, 0, Entry.iRotation, true);

	//	Paint all the satellites

	for (i = 0; i < SatImages.GetCount(); i++)
		SatImages[i].pImage->PaintImage(*pCompositeImage, xCenter + SatImages[i].xOffset, yCenter - SatImages[i].yOffset, 0, 0, true);

	//	Now create the proper image array

	RECT rcResult;
	rcResult.left = 0;
	rcResult.top = 0;
	rcResult.right = RectWidth(rcBounds);
	rcResult.bottom = RectHeight(rcBounds);

    int xOffset = (RectWidth(rcBounds) / 2) - xCenter;
    int yOffset = (RectHeight(rcBounds) / 2) - yCenter;

	Entry.pCompositeImageArray = new CObjectImageArray;
	Entry.pCompositeImageArray->Init(pCompositeImage, rcResult, 0, 0, true, xOffset, yOffset);

	//	Done

	Entry.pImage = Entry.pCompositeImageArray;
	}

void TestPolygons (CUniverse &Universe, CXMLElement *pCmdLine)
{
    int i;

    const int FRAME_WIDTH = 256;
    const int FRAME_HEIGHT = 256;
    const int OUTPUT_WIDTH = FRAME_WIDTH * 2;
    const int OUTPUT_HEIGHT = FRAME_HEIGHT;

    //	Options

    int iCount = pCmdLine->GetAttributeInteger(CONSTLIT("count"));
    if (iCount == 0)
        iCount = 1000;

    int iBltCount = Max(1, iCount / 10);

    //	Create the output image

    CG32bitImage Output;
    Output.Create(OUTPUT_WIDTH, OUTPUT_HEIGHT, CG32bitImage::alpha8);

    //	Create a regular polygon

    const int iSides = 17;
    const Metric rRadius = 100.0;
    const Metric rAngleStep = (TAU / iSides);

    TArray<CVector> Shape1;
    Shape1.InsertEmpty(iSides);
    for (i = 0; i < iSides; i++)
        Shape1[i] = CVector::FromPolar(i * rAngleStep, rRadius);

    //	Create a point array, which we'll use for the binary region

    SPoint Shape1Points[iSides];
    for (i = 0; i < iSides; i++)
    {
        Shape1Points[i].x = (int)Shape1[i].GetX();
        Shape1Points[i].y = (int)Shape1[i].GetY();
    }

    //	Create a path

    CGPath Shape1Path;
    Shape1Path.Init(Shape1);

    //	We do timing tests first

    TNumberSeries<Metric> Timing;

    //	Time rasterization of a binary region

    const int CALLS_PER_SAMPLE = 1000;
    const int BLTS_PER_SAMPLE = 100;
    DWORD dwStart = ::GetTickCount();
    for (i = 0; i < iCount; i++)
    {
        CG16bitBinaryRegion Region;
        Region.CreateFromPolygon(iSides, Shape1Points);

        if (((i + 1) % CALLS_PER_SAMPLE) == 0)
            Timing.Insert((Metric)::sysGetTicksElapsed(dwStart, &dwStart));
    }

    printf("CG16bitBinaryRegion::CreateFromPolygon: %s ms per %d\n", (LPSTR)strFromDouble(Timing.GetMean()), CALLS_PER_SAMPLE);

    //	Time rasterization of path

    Timing.DeleteAll();
    dwStart = ::GetTickCount();
    for (i = 0; i < iCount; i++)
    {

        CGRegion Region;
        Shape1Path.Rasterize(&Region, 1);

        if (((i + 1) % CALLS_PER_SAMPLE) == 0)
            Timing.Insert((Metric)::sysGetTicksElapsed(dwStart, &dwStart));
    }

    printf("CGPath::Rasterize: %s ms per %d\n", (LPSTR)strFromDouble(Timing.GetMean()), CALLS_PER_SAMPLE);

    //	Create the regions

    CG16bitBinaryRegion Shape1BinaryRegion;
    Shape1BinaryRegion.CreateFromPolygon(iSides, Shape1Points);

    CGRegion Shape1Region;
    Shape1Path.Rasterize(&Shape1Region, 4);

    //	Time to blt

    Timing.DeleteAll();
    dwStart = ::GetTickCount();
    for (i = 0; i < iBltCount; i++)
    {
        CGDraw::Region(Output, (FRAME_WIDTH / 2), (FRAME_HEIGHT / 2), Shape1BinaryRegion, CG32bitPixel(255, 255, 255));

        if (((i + 1) % BLTS_PER_SAMPLE) == 0)
//.........这里部分代码省略.........

void CNewGameSession::SetShipClassImage (CShipClass *pClass, int x, int y, int cxWidth)

//	SetShipClassImage
//
//	Sets the current ship class image

	{
	const CPlayerSettings *pPlayerSettings = pClass->GetPlayerSettings();

    //  Ask the class for a hero image

    const CG32bitImage *pImage = (!pClass->GetHeroImage().IsEmpty() ? &pClass->GetHeroImage().GetImage(CONSTLIT("New Game")) : NULL);
    
	//	Delete the previous one

	DeleteElement(ID_SHIP_CLASS_IMAGE);

	//	Add the new one, if we've got one.

	const CG32bitImage *pImageToUse = NULL;
	bool bFree = false;

	if (pImage && !pImage->IsEmpty())
		{
		//	If this image is not the right size, then create a resized version
		//	that is.

		if (pImage->GetWidth() != SHIP_IMAGE_WIDTH || pImage->GetHeight() != SHIP_IMAGE_HEIGHT)
			{
			int cxNewWidth = SHIP_IMAGE_WIDTH;
			int cyNewHeight = cxNewWidth * pImage->GetHeight() / pImage->GetWidth();
			if (cyNewHeight > SHIP_IMAGE_HEIGHT)
				{
				cyNewHeight = SHIP_IMAGE_HEIGHT;
				cxNewWidth = cyNewHeight * pImage->GetWidth() / pImage->GetHeight();
				}

			CG32bitImage *pNewImage = new CG32bitImage;
			pNewImage->CreateFromImageTransformed(*pImage, 0, 0, pImage->GetWidth(), pImage->GetHeight(), (Metric)cxNewWidth / pImage->GetWidth(), (Metric)cyNewHeight / pImage->GetHeight(), 0.0);

			pImageToUse = pNewImage;
			bFree = true;
			}
		else
			{
			pImageToUse = pImage;
			bFree = false;
			}
		}

	//	If we don't have an image then ask the class to paint it

	else
		{
		CG32bitImage *pNewImage = new CG32bitImage;
		pNewImage->Create(SHIP_IMAGE_WIDTH, SHIP_IMAGE_HEIGHT);

		ViewportTransform Trans;
		pClass->Paint(*pNewImage, 
				SHIP_IMAGE_WIDTH / 2, 
				SHIP_IMAGE_HEIGHT / 2, 
				Trans, 
				0, 
				0
				);

		pImageToUse = pNewImage;
		bFree = true;
		}

	//	Position

	int xImage = x + (cxWidth - pImageToUse->GetWidth()) / 2;
	int yImage = y + (SHIP_IMAGE_HEIGHT - pImageToUse->GetHeight()) / 2;

	//	New image frame

	bool bAutoMask = (pClass->GetAPIVersion() < 26);

	IAnimatron *pImageFrame = new CAniRect;
	pImageFrame->SetID(ID_SHIP_CLASS_IMAGE);
	pImageFrame->SetPropertyVector(PROP_POSITION, CVector(xImage, yImage));
	pImageFrame->SetPropertyVector(PROP_SCALE, CVector(pImageToUse->GetWidth(), pImageToUse->GetHeight()));
	pImageFrame->SetFillMethod(new CAniImageFill(pImageToUse, bFree, bAutoMask));

	m_pRoot->AddLine(pImageFrame);
	}

void CFilterColorizeEntry::GetImage (const CCompositeImageSelector &Selector, CObjectImageArray *retImage)

//	GetImage
//
//	Fills in the image

	{
	//	Null case

	if (m_pSource == NULL)
		{
		*retImage = EMPTY_IMAGE;
		return;
		}

	//	Get the source image (which we want to colorize)

	CObjectImageArray Source;
	m_pSource->GetImage(Selector, &Source);
	const RECT &rcSource = Source.GetImageRect();
	CG32bitImage &SourceImage = Source.GetImage(NULL_STR);
	int cxWidth = RectWidth(rcSource);
	int cyHeight = RectHeight(rcSource);
	if (!Source.IsLoaded() || cxWidth == 0 || cyHeight == 0)
		{
		*retImage = EMPTY_IMAGE;
		return;
		}

	//	Create the destination image

	CG32bitImage *pDest = new CG32bitImage;
	pDest->Create(cxWidth, cyHeight, SourceImage.GetAlphaType());

	//	Blt the to the destination with colorization

	CGDraw::CopyColorize(*pDest,
			0,
			0,
			SourceImage,
			rcSource.left,
			rcSource.top,
			cxWidth,
			cyHeight,
			(REALPIXEL)m_dwHue,
			(REALPIXEL)m_dwSaturation / 100.0);

	//	Initialize an image

	RECT rcFinalRect;
	rcFinalRect.left = 0;
	rcFinalRect.top = 0;
	rcFinalRect.right = cxWidth;
	rcFinalRect.bottom = cyHeight;

	CObjectImageArray Comp;
	Comp.Init(pDest, rcFinalRect, 0, 0, true);

	//	Done

	retImage->TakeHandoff(Comp);
	}

void CExtension::CreateIcon (int cxWidth, int cyHeight, CG32bitImage **retpIcon) const

//	CreateIcon
//
//	Creates a cover icon for the adventure. The caller is responsible for
//	freeing the result.

	{
	//	Load the image

	CG32bitImage *pBackground = GetCoverImage();
	if (pBackground == NULL || pBackground->GetWidth() == 0 || pBackground->GetHeight() == 0)
		{
		int cxSize = Min(cxWidth, cyHeight);
		*retpIcon = new CG32bitImage;
		(*retpIcon)->Create(cxSize, cxSize);
		return;
		}

	//	Figure out the dimensions of the icon based on the image size and the
	//	desired output.
	//
	//	If the background is larger than the icon size then we need to scale it.

	CG32bitImage *pIcon;
	if (pBackground->GetWidth() > cxWidth || pBackground->GetHeight() > cyHeight)
		{
		int xSrc, ySrc, cxSrc, cySrc;
		Metric rScale;

		//	If we have a widescreen cover image and we want a portrait or
		//	square icon, then we zoom in on the key part of the cover.

		if (pBackground->GetWidth() > 2 * pBackground->GetHeight())
			{
			rScale = (Metric)cyHeight / pBackground->GetHeight();

			cxSrc = (int)(cxWidth / rScale);
			xSrc = Min(pBackground->GetWidth() - cxSrc, pBackground->GetWidth() - (RIGHT_COVER_OFFSET + (cxSrc / 2)));

			ySrc = 0;
			cySrc = pBackground->GetHeight();
			}
		else
			{
			rScale = (Metric)cxWidth / pBackground->GetWidth();
			if (rScale * pBackground->GetHeight() > (Metric)cyHeight)
				rScale = (Metric)cyHeight / pBackground->GetHeight();

			xSrc = 0;
			ySrc = 0;
			cxSrc = pBackground->GetWidth();
			cySrc = pBackground->GetHeight();
			}

		//	Create the icon

		pIcon = new CG32bitImage;
		pIcon->CreateFromImageTransformed(*pBackground,
				xSrc,
				ySrc,
				cxSrc,
				cySrc,
				rScale,
				rScale,
				0.0);
		}

	//	Otherwise we center the image on the icon

	else
		{
		//	Create the icon

		pIcon = new CG32bitImage;
		pIcon->Create(cxWidth, cyHeight);

		//	Blt

		pIcon->Blt(0,
				0,
				pBackground->GetWidth(),
				pBackground->GetHeight(),
				*pBackground,
				(cxWidth - pBackground->GetWidth()) / 2,
				(cyHeight - pBackground->GetHeight()) / 2);
		}

	//	Done

	*retpIcon = pIcon;
	}