Пример #1
0
void MacDock::overlay(const QString& text)
{
	if (text.isEmpty()) {
		overlayed = false;
		RestoreApplicationDockTileImage();
		return;
	}

	// Create the context
	CGContextRef context = BeginCGContextForApplicationDockTile();

	if (!overlayed) {
		overlayed = true;

		// Add some subtle drop down shadow
		// FIXME: Disabled because 10.2 doesn't support it
		//CGSize s = { 2.0, -4.0 };
		//CGContextSetShadow(context,s,5.0);
	}

	// Draw a circle
	CGContextBeginPath(context);
	CGContextAddArc(context, 95.0, 95.0, 25.0, 0.0, 2 * M_PI, true);
	CGContextClosePath(context);
	CGContextSetRGBFillColor(context, 1, 0.0, 0.0, 1);
	CGContextFillPath(context);

	// Set the clipping path to the same circle
	CGContextBeginPath(context);
	CGContextAddArc(context, 95.0, 95.0, 25.0, 0.0, 2 * M_PI, true);
	CGContextClip(context);

	// Remove drop shadow
	// FIXME: Disabled because 10.2 doesn't support it
	//CGSize s = { 0.0, -0.0 };
	//CGContextSetShadowWithColor(context, s, 0, NULL);

	// Select the appropriate font
	CGContextSelectFont(context,DOCK_FONT_NAME, DOCK_FONT_SIZE, kCGEncodingMacRoman);
	CGContextSetRGBFillColor(context, 1, 1, 1, 1);

	// Draw the text invisible
	CGPoint begin = CGContextGetTextPosition(context);
	CGContextSetTextDrawingMode(context, kCGTextInvisible);	
	CGContextShowTextAtPoint(context, begin.x, begin.y, text.toStdString().c_str(), text.length());
	CGPoint end = CGContextGetTextPosition(context);

	// Draw the text
	CGContextSetTextDrawingMode(context, kCGTextFill);	
	CGContextShowTextAtPoint(context, 95 - (end.x - begin.x)/2, 95 - 8, text.toStdString().c_str(), text.length());
	
	// Cleanup
	CGContextFlush(context);
	EndCGContextForApplicationDockTile(context);
}
Пример #2
0
static double 	Quartz_StrWidth(char *str, 
				R_GE_gcontext *gc,
				NewDevDesc *dd)
{
    QuartzDesc *xd = (QuartzDesc*)dd->deviceSpecific;
    CGPoint position;

    CGContextSaveGState( GetContext(xd) );
    CGContextTranslateCTM( GetContext(xd), 0, 0 );

    CGContextScaleCTM( GetContext(xd), -1, 1);

    CGContextRotateCTM( GetContext(xd), -1.0 * 3.1416);

    CGContextSetTextDrawingMode( GetContext(xd), kCGTextInvisible );

    Quartz_SetFont(gc->fontfamily, gc->fontface, gc->cex,  gc->ps, dd);

    CGContextShowTextAtPoint( GetContext(xd), 0, 0, str, strlen(str) );

    position = CGContextGetTextPosition( GetContext(xd) );

    CGContextRestoreGState( GetContext(xd) );
    return(position.x);
}
Пример #3
0
void QFontEngineMac::draw(CGContextRef ctx, qreal x, qreal y, const QTextItemInt &ti, int paintDeviceHeight)
{
    QVarLengthArray<QFixedPoint> positions;
    QVarLengthArray<glyph_t> glyphs;
    QTransform matrix;
    matrix.translate(x, y);
    getGlyphPositions(ti.glyphs, ti.num_glyphs, matrix, ti.flags, glyphs, positions);
    if (glyphs.size() == 0)
        return;

    CGContextSetFontSize(ctx, fontDef.pixelSize);

    CGAffineTransform oldTextMatrix = CGContextGetTextMatrix(ctx);

    CGAffineTransform cgMatrix = CGAffineTransformMake(1, 0, 0, -1, 0, -paintDeviceHeight);

    CGAffineTransformConcat(cgMatrix, oldTextMatrix);

    if (synthesisFlags & QFontEngine::SynthesizedItalic)
        cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, -tanf(14 * acosf(0) / 90), 1, 0, 0));

    cgMatrix = CGAffineTransformConcat(cgMatrix, multiEngine->transform);

    CGContextSetTextMatrix(ctx, cgMatrix);

    CGContextSetTextDrawingMode(ctx, kCGTextFill);


    QVarLengthArray<CGSize> advances(glyphs.size());
    QVarLengthArray<CGGlyph> cgGlyphs(glyphs.size());

    for (int i = 0; i < glyphs.size() - 1; ++i) {
        advances[i].width = (positions[i + 1].x - positions[i].x).toReal();
        advances[i].height = (positions[i + 1].y - positions[i].y).toReal();
        cgGlyphs[i] = glyphs[i];
    }
    advances[glyphs.size() - 1].width = 0;
    advances[glyphs.size() - 1].height = 0;
    cgGlyphs[glyphs.size() - 1] = glyphs[glyphs.size() - 1];

    CGContextSetFont(ctx, cgFont);

    CGContextSetTextPosition(ctx, positions[0].x.toReal(), positions[0].y.toReal());

    CGContextShowGlyphsWithAdvances(ctx, cgGlyphs.data(), advances.data(), glyphs.size());

    if (synthesisFlags & QFontEngine::SynthesizedBold) {
        CGContextSetTextPosition(ctx, positions[0].x.toReal() + 0.5 * lineThickness().toReal(),
                                      positions[0].y.toReal());

        CGContextShowGlyphsWithAdvances(ctx, cgGlyphs.data(), advances.data(), glyphs.size());
    }

    CGContextSetTextMatrix(ctx, oldTextMatrix);
}
Пример #4
0
void drawMetaDataText (CGContextRef myContext, CGRect contextRect, CFURLRef url)
{
    float w, h;
    w = contextRect.size.width;
    h = contextRect.size.height;
    
    
	
	//Lets pull some metadata!
	
	struct metaData struct_metaData;
    
    bzero(struct_metaData.Title, 1024);
    bzero(struct_metaData.Header, 1024);
//    bzero(struct_metaData.Expdata, 1024);
//    bzero(struct_metaData.Resolution, 1024);
//    bzero(struct_metaData.JrnlTitle, 1024);
//    bzero(struct_metaData.JrnlRef, 1024);
//    bzero(struct_metaData.Keywds, 4000);
//    bzero(struct_metaData.JrnlAuthor, 4000);
    
	
	exportMetaData(url, &struct_metaData);
	
	
	int wraplength = 50;
	int colLength = wraplength+5;
    int rowLength = 10;
	int textposX = 5;
	int textposY = 10;
    
    int calc_textposX = textposX;
	int calc_textposY = textposY;
    
    
    CGContextSetRGBFillColor (myContext, 1, 1, 1, 1);
    
    
    CGContextSelectFont (myContext, "Helvetica", 20, kCGEncodingMacRoman);
	
    CGContextSetCharacterSpacing (myContext, 1);
    CGContextSetTextDrawingMode (myContext, kCGTextFill);
    
    CGContextSetRGBFillColor(myContext, 0, 0, 0, 1);
    
    if(struct_metaData.Title[0] != 0){
        calcRectangle("Title: ", struct_metaData.Title, rowLength, colLength, wraplength, &calc_textposX, &calc_textposY);
        drawRoundedRect(myContext, calc_textposX, calc_textposY);
    }
	
    DrawText("Title: ", struct_metaData.Title, myContext,  rowLength, colLength, wraplength, &textposX, &textposY);
    
}
Пример #5
0
static void cgSetPaintForText(CGContextRef cg, const SkPaint& paint) {
    SkColor c = paint.getColor();
    CGFloat rgba[] = {
        SkColorGetB(c) / 255.0f,
        SkColorGetG(c) / 255.0f,
        SkColorGetR(c) / 255.0f,
        SkColorGetA(c) / 255.0f,
    };
    CGContextSetRGBFillColor(cg, rgba[0], rgba[1], rgba[2], rgba[3]);

    CGContextSetTextDrawingMode(cg, kCGTextFill);
    CGContextSetFont(cg, typefaceToCGFont(paint.getTypeface()));
    CGContextSetFontSize(cg, SkScalarToFloat(paint.getTextSize()));

    CGContextSetAllowsFontSubpixelPositioning(cg, paint.isSubpixelText());
    CGContextSetShouldSubpixelPositionFonts(cg, paint.isSubpixelText());

    CGContextSetShouldAntialias(cg, paint.isAntiAlias());
    CGContextSetShouldSmoothFonts(cg, paint.isLCDRenderText());
}
Пример #6
0
void GraphicsContext::setPlatformTextDrawingMode(int mode)
{
    if (paintingDisabled())
        return;

    // Wow, wish CG had used bits here.
    CGContextRef context = platformContext();
    switch (mode) {
        case cTextInvisible: // Invisible
            CGContextSetTextDrawingMode(context, kCGTextInvisible);
            break;
        case cTextFill: // Fill
            CGContextSetTextDrawingMode(context, kCGTextFill);
            break;
        case cTextStroke: // Stroke
            CGContextSetTextDrawingMode(context, kCGTextStroke);
            break;
        case 3: // Fill | Stroke
            CGContextSetTextDrawingMode(context, kCGTextFillStroke);
            break;
        case cTextClip: // Clip
            CGContextSetTextDrawingMode(context, kCGTextClip);
            break;
        case 5: // Fill | Clip
            CGContextSetTextDrawingMode(context, kCGTextFillClip);
            break;
        case 6: // Stroke | Clip
            CGContextSetTextDrawingMode(context, kCGTextStrokeClip);
            break;
        case 7: // Fill | Stroke | Clip
            CGContextSetTextDrawingMode(context, kCGTextFillStrokeClip);
            break;
        default:
            break;
    }
}
Пример #7
0
void GraphicsContext::setPlatformTextDrawingMode(TextDrawingModeFlags mode)
{
    if (paintingDisabled())
        return;

    // Wow, wish CG had used bits here.
    CGContextRef context = platformContext();
    switch (mode) {
    case TextModeInvisible:
        CGContextSetTextDrawingMode(context, kCGTextInvisible);
        break;
    case TextModeFill:
        CGContextSetTextDrawingMode(context, kCGTextFill);
        break;
    case TextModeStroke:
        CGContextSetTextDrawingMode(context, kCGTextStroke);
        break;
    case TextModeFill | TextModeStroke:
        CGContextSetTextDrawingMode(context, kCGTextFillStroke);
        break;
    case TextModeClip:
        CGContextSetTextDrawingMode(context, kCGTextClip);
        break;
    case TextModeFill | TextModeClip:
        CGContextSetTextDrawingMode(context, kCGTextFillClip);
        break;
    case TextModeStroke | TextModeClip:
        CGContextSetTextDrawingMode(context, kCGTextStrokeClip);
        break;
    case TextModeFill | TextModeStroke | TextModeClip:
        CGContextSetTextDrawingMode(context, kCGTextFillStrokeClip);
        break;
    default:
        break;
    }
}
FX_BOOL CFX_AggDeviceDriver::DrawDeviceText(int						 nChars,
        const FXTEXT_CHARPOS *	 pCharPos,
        CFX_Font *				 pFont,
        CFX_FontCache *			 pCache,
        const CFX_AffineMatrix * pObject2Device,
        FX_FLOAT				 font_size,
        FX_DWORD				 argb,
        int alpha_flag, void* pIccTransform)
{
    if (!pFont) {
        return FALSE;
    }
    FX_BOOL bBold = pFont->IsBold();
    if (!bBold && pFont->GetSubstFont() &&
            pFont->GetSubstFont()->m_Weight >= 500 &&
            pFont->GetSubstFont()->m_Weight <= 600) {
        return FALSE;
    }
    for (int i = 0; i < nChars; i ++) {
        if (pCharPos[i].m_bGlyphAdjust) {
            return FALSE;
        }
    }
    CGContextRef ctx = CGContextRef(m_pPlatformGraphics);
    if (NULL == ctx) {
        return FALSE;
    }
    CGContextSaveGState(ctx);
    CGContextSetTextDrawingMode(ctx, kCGTextFillClip);
    CGRect rect_cg;
    CGImageRef pImageCG = NULL;
    if (m_pClipRgn) {
        rect_cg = CGRectMake(m_pClipRgn->GetBox().left, m_pClipRgn->GetBox().top, m_pClipRgn->GetBox().Width(), m_pClipRgn->GetBox().Height());
        const CFX_DIBitmap*	pClipMask = m_pClipRgn->GetMask();
        if (pClipMask) {
            CGDataProviderRef pClipMaskDataProvider = CGDataProviderCreateWithData(NULL,
                    pClipMask->GetBuffer(),
                    pClipMask->GetPitch() * pClipMask->GetHeight(),
                    _DoNothing);
            CGFloat decode_f[2] = {255.f, 0.f};
            pImageCG = CGImageMaskCreate(pClipMask->GetWidth(), pClipMask->GetHeight(),
                                         8, 8, pClipMask->GetPitch(), pClipMaskDataProvider,
                                         decode_f, FALSE);
            CGDataProviderRelease(pClipMaskDataProvider);
        }
    } else {
        rect_cg = CGRectMake(0, 0, m_pBitmap->GetWidth(), m_pBitmap->GetHeight());
    }
    rect_cg = CGContextConvertRectToDeviceSpace(ctx, rect_cg);
    if (pImageCG) {
        CGContextClipToMask(ctx, rect_cg, pImageCG);
    } else {
        CGContextClipToRect(ctx, rect_cg);
    }
    FX_BOOL ret = _CGDrawGlyphRun(ctx, nChars, pCharPos, pFont, pCache, pObject2Device, font_size, argb, alpha_flag, pIccTransform);
    if (pImageCG) {
        CGImageRelease(pImageCG);
    }
    CGContextRestoreGState(ctx);
    return ret;
}
Пример #9
0
PlatformFont::CharInfo& MacCarbFont::getCharInfo(const UTF16 ch) const
{
   // We use some static data here to avoid re allocating the same variable in a loop.
   // this func is primarily called by GFont::loadCharInfo(),
   Rect                 imageRect;
   CGContextRef         imageCtx;
   U32                  bitmapDataSize;
   ATSUTextMeasurement  tbefore, tafter, tascent, tdescent;
   OSStatus             err;

   // 16 bit character buffer for the ATUSI calls.
   // -- hey... could we cache this at the class level, set style and loc *once*, 
   //    then just write to this buffer and clear the layout cache, to speed up drawing?
   static UniChar chUniChar[1];
   chUniChar[0] = ch;

   // Declare and clear out the CharInfo that will be returned.
   static PlatformFont::CharInfo c;
   dMemset(&c, 0, sizeof(c));
   
   // prep values for GFont::addBitmap()
   c.bitmapIndex = 0;
   c.xOffset = 0;
   c.yOffset = 0;

   // put the text in the layout.
   // we've hardcoded a string length of 1 here, but this could work for longer strings... (hint hint)
   // note: ATSUSetTextPointerLocation() also clears the previous cached layout information.
   ATSUSetTextPointerLocation( mLayout, chUniChar, 0, 1, 1);
   ATSUSetRunStyle( mLayout, mStyle, 0,1);
   
   // get the typographic bounds. this tells us how characters are placed relative to other characters.
   ATSUGetUnjustifiedBounds( mLayout, 0, 1, &tbefore, &tafter, &tascent, &tdescent);
   c.xIncrement =  FixedToInt(tafter);
   
   // find out how big of a bitmap we'll need.
   // as a bonus, we also get the origin where we should draw, encoded in the Rect.
   ATSUMeasureTextImage( mLayout, 0, 1, 0, 0, &imageRect);
   U32 xFudge = 2;
   U32 yFudge = 1;
   c.width  = imageRect.right - imageRect.left + xFudge; // add 2 because small fonts don't always have enough room
   c.height = imageRect.bottom - imageRect.top + yFudge;
   c.xOrigin = imageRect.left; // dist x0 -> center line
   c.yOrigin = -imageRect.top; // dist y0 -> base line
   
   // kick out early if the character is undrawable
   if( c.width == xFudge || c.height == yFudge)
      return c;
   
   // allocate a greyscale bitmap and clear it.
   bitmapDataSize = c.width * c.height;
   c.bitmapData = new U8[bitmapDataSize];
   dMemset(c.bitmapData,0x00,bitmapDataSize);
   
   // get a graphics context on the bitmap
   imageCtx = CGBitmapContextCreate( c.bitmapData, c.width, c.height, 8, c.width, mColorSpace, kCGImageAlphaNone);
   if(!imageCtx) {
      Con::errorf("Error: failed to create a graphics context on the CharInfo bitmap! Drawing a blank block.");
      c.xIncrement = c.width;
      dMemset(c.bitmapData,0x0F,bitmapDataSize);
      return c;
   }

   // Turn off antialiasing for monospaced console fonts. yes, this is cheating.
   if(mSize < 12  && ( dStrstr(mName,"Monaco")!=NULL || dStrstr(mName,"Courier")!=NULL ))
      CGContextSetShouldAntialias(imageCtx, false);

   // Set up drawing options for the context.
   // Since we're not going straight to the screen, we need to adjust accordingly
   CGContextSetShouldSmoothFonts(imageCtx, false);
   CGContextSetRenderingIntent(imageCtx, kCGRenderingIntentAbsoluteColorimetric);
   CGContextSetInterpolationQuality( imageCtx, kCGInterpolationNone);
   CGContextSetGrayFillColor( imageCtx, 1.0, 1.0);
   CGContextSetTextDrawingMode( imageCtx,  kCGTextFill);
   
   // tell ATSUI to substitute fonts as needed for missing glyphs
   ATSUSetTransientFontMatching(mLayout, true); 

   // set up three parrallel arrays for setting up attributes. 
   // this is how most options in ATSUI are set, by passing arrays of options.
   ATSUAttributeTag theTags[] = { kATSUCGContextTag };
   ByteCount theSizes[] = { sizeof(CGContextRef) };
   ATSUAttributeValuePtr theValues[] = { &imageCtx };
   
   // bind the layout to the context.
   ATSUSetLayoutControls( mLayout, 1, theTags, theSizes, theValues );

   // Draw the character!
   int yoff = c.height < 3 ? 1 : 0; // kludge for 1 pixel high characters, such as '-' and '_'
   int xoff = 1;
   err = ATSUDrawText( mLayout, 0, 1, IntToFixed(-imageRect.left + xoff), IntToFixed(imageRect.bottom + yoff ) );
   CGContextRelease(imageCtx);
   
   if(err != noErr) {
      Con::errorf("Error: could not draw the character! Drawing a blank box.");
      dMemset(c.bitmapData,0x0F,bitmapDataSize);
   }


#if TORQUE_DEBUG
//   Con::printf("Font Metrics: Rect = %2i %2i %2i %2i  Char= %C, 0x%x  Size= %i, Baseline= %i, Height= %i",imageRect.top, imageRect.bottom, imageRect.left, imageRect.right,ch,ch, mSize,mBaseline, mHeight);
//   Con::printf("Font Bounds:  left= %2i right= %2i  Char= %C, 0x%x  Size= %i",FixedToInt(tbefore), FixedToInt(tafter), ch,ch, mSize);
#endif
      
   return c;
}
Пример #10
0
// Draws the current ATSUI data.  Takes a GrafPtr as an argument so
// that it can handle printing as well as drawing into a window.
//
void DrawATSUIStuff(GrafPtr drawingPort)
{
    GrafPtr                             savedPort;
    Rect                                portBounds, quarterRect2, quarterRect3;
    float								windowHeight, quarter;
    CGContextRef						context;
    TXNTextBoxOptionsData				optionsData;
    Boolean								needToUseCGStrokeMethod;

    // Set up the GrafPort
    GetPort(&savedPort);
    SetPort(drawingPort);
    GetPortBounds(drawingPort, &portBounds);
    EraseRect(&portBounds);

    // Divide the window into vertical quarters, and draw the text in the middle two quarters
    windowHeight = portBounds.bottom - portBounds.top;
    quarter = windowHeight / 4.0;
    MacSetRect(&quarterRect2, portBounds.left, portBounds.top + quarter, portBounds.right, portBounds.bottom - (quarter * 2.0));
    FrameRect(&quarterRect2);
    MacSetRect(&quarterRect3, portBounds.left, portBounds.top + (quarter * 2.0), portBounds.right, portBounds.bottom - quarter);
    FrameRect(&quarterRect3);

    // Set up the CGContext
    if (gNewCG) QDBeginCGContext(drawingPort, &context); else CreateCGContextForPort(drawingPort, &context);

    // Setup the options to pass into TXNDrawUnicodeTextBox
    optionsData.optionTags = kTXNUseCGContextRefMask | kTXNSetFlushnessMask | kTXNUseFontFallBackMask;
    optionsData.flushness = X2Frac(0.5);   // Center the text horizontally, just for this demo.
    optionsData.options = (void *)context; // This parameter really needs to be renamed, see 3198383.

    // Draw the text once without the extr bold
    verify_noerr( TXNDrawUnicodeTextBox(gText, gLength, &quarterRect2, gStyle, &optionsData) );

    // ----------------------------------------------------------
    //
    // Here is where we change the setting to do the extra stroke
    // The value of gStrokeThicknessFactor determines how thick the extra stroke is.
    //   The "standard" value used by ATSUI is 0.024;
    //     this was changed to 0.044 for bug 3189696,
    //     and will probably be changed back, so if you
    //     want the extra stroke, you will have to do it
    //     manually, as is done below.
    //
    // The extra stroke method:
    //  - will look good on-screen when CG anti-aliasing is ON
    //  - will look good when printing
    //  - will *NOT* look good on-screen when CG anti-aliasing is OFF
    //     (just use kATSUQDBoldfaceTag in that case)
    //
    needToUseCGStrokeMethod = gCurrentlyPrinting || IsAntiAliased(gPointSize);
    if ( needToUseCGStrokeMethod ) {
        CGContextSaveGState(context);
        CGContextSetTextDrawingMode(context, kCGTextFillStroke);
        CGContextSetLineWidth(context, gStrokeThicknessFactor * Fix2X(gPointSize));
        // You might want to call CGContextSetStrokeColor() here,
        // just to make certain it is the same as the text/fill color.
    }
    else
        MySetBoldfaceTag(gStyle); // This will look very strong on-screen when CG anti-aliasing is off

    // Draw the text again with the extra bold for comparison
    verify_noerr( TXNDrawUnicodeTextBox(gText, gLength, &quarterRect3, gStyle, &optionsData) );

    // Undo the previous CG text mode setting
    if ( needToUseCGStrokeMethod )
        CGContextRestoreGState(context);
    else
        MyClearBoldfaceTag(gStyle);

    // Tear down the CGContext since we are done with it
    if (gNewCG) QDEndCGContext(drawingPort, &context); else CGContextRelease(context);    

    // Restore the GrafPort
    SetPort(savedPort);
}
Пример #11
0
void map_text(MapGC *mgc, MapSettings *settings,
	      int x, int y, const char *text, int style)
{
  if (FALSE);
#ifdef HAVE_CAIRO
  else if (mgc->cairo_cr)
    {
      int xpos = x;
      int ypos = y;
      cairo_text_extents_t extents;

      cairo_select_font_face(mgc->cairo_cr, "Sans",
			     CAIRO_FONT_SLANT_NORMAL,
			     CAIRO_FONT_WEIGHT_NORMAL);

      if (style & 0x800)
	{
	  if (settings->pdamode)
	    cairo_set_font_size(mgc->cairo_cr, 9);
	  else
	    cairo_set_font_size(mgc->cairo_cr, 14);
	}
      else
	{
	  if (settings->pdamode)
	    cairo_set_font_size(mgc->cairo_cr, 8);
	  else
	    cairo_set_font_size(mgc->cairo_cr, 11);
	}

      cairo_text_extents(mgc->cairo_cr, text, &extents);

      if ((style & 0x300) == 0x100)
	{
	  xpos -= extents.width;
	}
      else if ((style & 0x300) == 0x200)
	{
	  xpos -= extents.width / 2;
	}
      else if ((style & 0x300) == 0x300)
	{
	  xpos -= extents.width / 2;
	  ypos -= extents.height / 2;
	}

      if (style & 0x400)
	map_bkg_rectangle(mgc, settings,
			  xpos, ypos, extents.width, extents.height);

      if (style & 1)
	cairo_set_source_rgb(mgc->cairo_cr, 0, 0, 1);
      else
	cairo_set_source_rgb(mgc->cairo_cr, 0, 0, 0);

      cairo_move_to(mgc->cairo_cr, xpos, ypos + extents.height);
      cairo_show_text(mgc->cairo_cr, text);
    }
#endif
#ifdef HAVE_GTK
  else if (mgc->gtk_drawable)
    {
      int xpos = x;
      int ypos = y;
      int width;
      int height;

      PangoFontDescription *fd;
      PangoLayout *layout =
	gtk_widget_create_pango_layout(mgc->gtk_widget, text);

      if (style & 0x800)
	{
	  if (settings->pdamode)
	    fd = pango_font_description_from_string("Sans 9");
	  else
	    fd = pango_font_description_from_string("Sans 14");
	}
      else
	{
	  if (settings->pdamode)
	    fd = pango_font_description_from_string("Sans 8");
	  else
	    fd = pango_font_description_from_string("Sans 11");
	}

      pango_layout_set_font_description(layout, fd);

      pango_layout_get_pixel_size(layout, &width, &height);

      if ((style & 0x300) == 0x100)
	{
	  xpos -= width;
	}
      else if ((style & 0x300) == 0x200)
	{
	  xpos -= width / 2;
	}
      else if ((style & 0x300) == 0x300)
	{
	  xpos -= width / 2;
	  ypos -= height / 2;
	}

      if (style & 0x400)
	map_bkg_rectangle(mgc, settings,
			  xpos, ypos, width, height);

      if (style & 1)
	gdk_draw_layout_with_colors(mgc->gtk_drawable, mgc->gtk_gc, xpos, ypos,
				    layout, &settings->blue, NULL);
      else
	gdk_draw_layout_with_colors(mgc->gtk_drawable, mgc->gtk_gc, xpos, ypos,
				    layout, &settings->black, NULL);

      if (layout != NULL)
	g_object_unref(G_OBJECT(layout));

      pango_font_description_free(fd);
    }
#endif
#ifdef HAVE_QT
  else if (mgc->qt_painter)
    {
      qt_text(mgc->qt_painter, settings,
	      x, y, text, style);
    }
#endif
#ifdef HAVE_QUARTZ
  else if (mgc->quartz_gc)
    {
      int xpos = x;
      int ypos = y;
      int width;
      int height;

      CGContextSelectFont(mgc->quartz_gc, "Verdana",
			  8, kCGEncodingMacRoman);

      if (style & 0x800)
	{
	  if (settings->pdamode)
	    CGContextSetFontSize(mgc->quartz_gc, 9);
	  else
	    CGContextSetFontSize(mgc->quartz_gc, 14);
	}
      else
	{
	  if (settings->pdamode)
	    CGContextSetFontSize(mgc->quartz_gc, 8);
	  else
	    CGContextSetFontSize(mgc->quartz_gc, 11);
	}

      {
	CGPoint oldPos = CGContextGetTextPosition(mgc->quartz_gc);
	CGContextSetTextDrawingMode(mgc->quartz_gc, kCGTextInvisible);
	CGContextShowText(mgc->quartz_gc, text, strlen(text));
	CGPoint newPos = CGContextGetTextPosition(mgc->quartz_gc);
	CGContextSetTextDrawingMode(mgc->quartz_gc, kCGTextFill);
	CGContextSetTextPosition(mgc->quartz_gc, oldPos.x, oldPos.y);
	width = newPos.x - oldPos.x;
      }

      if ((style & 0x300) == 0x100)
	{
	  xpos -= width;
	}
      else if ((style & 0x300) == 0x200)
	{
	  xpos -= width / 2;
	}
      else if ((style & 0x300) == 0x300)
	{
	  xpos -= width / 2;
	  ypos -= height / 2;
	}

      if (style & 0x400)
	map_bkg_rectangle(mgc, settings,
			  xpos, ypos, width, height);

      if (style & 1)
	CGContextSetRGBStrokeColor(mgc->quartz_gc, 0, 0, 1, 1);
      else
	CGContextSetRGBStrokeColor(mgc->quartz_gc, 0, 0, 0, 1);

      CGContextSetTextPosition(mgc->quartz_gc, xpos, ypos);
      CGContextShowText(mgc->quartz_gc, text, strlen(text));
    }
#endif
#ifdef WIN32
  else if (mgc->win_dc)
    {
      int xpos = x;
      int ypos = y;
      int fontSize;
      HFONT oldFont;
      HFONT font;
      SIZE textSize;

      if (style & 0x800)
	{
	  if (settings->pdamode)
	    fontSize = 9;
	  else
	    fontSize = 14;
	}
      else
	{
	  if (settings->pdamode)
	    fontSize = 8;
	  else
	    fontSize = 11;
	}

      fontSize = fontSize * 3 / 2;

      font = CreateFont(fontSize, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "MSSansSerif");
      oldFont = SelectObject(mgc->win_dc, font);

      GetTextExtentPoint32(mgc->win_dc, text, strlen(text), &textSize);

      if ((style & 0x300) == 0x100)
	{
	  xpos -= textSize.cx;
	}
      else if ((style & 0x300) == 0x200)
	{
	  xpos -= textSize.cx / 2;
	}
      else if ((style & 0x300) == 0x300)
	{
	  xpos -= textSize.cx / 2;
	  ypos -= textSize.cy / 2;
	}

      if (style & 0x400)
	map_bkg_rectangle(mgc, settings,
			  xpos, ypos, textSize.cx, textSize.cy);

      if (style & 1)
	SetTextColor(mgc->win_dc, RGB(0x00, 0x00, 0xff));
      else
	SetTextColor(mgc->win_dc, RGB(0x00, 0x00, 0x00));

      SetBkMode(mgc->win_dc, TRANSPARENT);
      TextOut(mgc->win_dc, xpos, ypos, text, strlen(text));
      SelectObject(mgc->win_dc, oldFont);
      DeleteObject(font);
    }
#endif
}
Пример #12
0
FX_BOOL CFX_QuartzDeviceDriver::DrawDeviceText(int                      nChars,
        const FXTEXT_CHARPOS*    pCharPos,
        CFX_Font*                pFont,
        CFX_FontCache*           pCache,
        const CFX_AffineMatrix*  pObject2Device,
        FX_FLOAT                 font_size,
        FX_DWORD                 color,
        int                      alpha_flag       ,
        void*                    pIccTransform)
{
    if (NULL == pFont || NULL == _context) {
        return FALSE;
    }
    FX_BOOL bBold = pFont->IsBold();
    if (!bBold && pFont->GetSubstFont() &&
            pFont->GetSubstFont()->m_Weight >= 500 &&
            pFont->GetSubstFont()->m_Weight <= 600) {
        return FALSE;
    }
    SaveState();
    CGContextSetTextDrawingMode(_context, kCGTextFillClip);
    FX_BOOL ret = FALSE;
    FX_INT32 i = 0;
    while (i < nChars) {
        if (pCharPos[i].m_bGlyphAdjust || font_size < 0) {
            if (i > 0) {
                ret = CG_DrawGlypRun(i, pCharPos, pFont, pCache, NULL, pObject2Device, font_size, color, alpha_flag, pIccTransform);
                if (!ret) {
                    RestoreState(FALSE);
                    return ret;
                }
            }
            const FXTEXT_CHARPOS* char_pos = pCharPos + i;
            CFX_AffineMatrix glphy_matrix;
            if (font_size < 0) {
                glphy_matrix.Concat(-1, 0, 0, -1, 0, 0);
            }
            if (char_pos->m_bGlyphAdjust) {
                glphy_matrix.Concat(char_pos->m_AdjustMatrix[0],
                                    char_pos->m_AdjustMatrix[1],
                                    char_pos->m_AdjustMatrix[2],
                                    char_pos->m_AdjustMatrix[3], 0, 0);
            }
            ret = CG_DrawGlypRun(1, char_pos, pFont, pCache, &glphy_matrix, pObject2Device, font_size, color, alpha_flag, pIccTransform);
            if (!ret) {
                RestoreState(FALSE);
                return ret;
            }
            i ++;
            pCharPos += i;
            nChars -= i;
            i = 0;
        } else {
            i ++;
        }
    }
    if (i > 0) {
        ret = CG_DrawGlypRun(i, pCharPos, pFont, pCache, NULL, pObject2Device, font_size, color, alpha_flag, pIccTransform);
    }
    RestoreState(FALSE);
    return ret;
}
Пример #13
0
QImage QFontEngineMac::alphaMapForGlyph(glyph_t glyph)
{
    const glyph_metrics_t br = boundingBox(glyph);
    QImage im(qRound(br.width)+2, qRound(br.height)+2, QImage::Format_RGB32);
    im.fill(0);

    CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB();
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4)
    uint cgflags = kCGImageAlphaNoneSkipFirst;
#ifdef kCGBitmapByteOrder32Host //only needed because CGImage.h added symbols in the minor version
    if(QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4)
        cgflags |= kCGBitmapByteOrder32Host;
#endif
#else
    CGImageAlphaInfo cgflags = kCGImageAlphaNoneSkipFirst;
#endif
    CGContextRef ctx = CGBitmapContextCreate(im.bits(), im.width(), im.height(),
                                             8, im.bytesPerLine(), colorspace,
                                             cgflags);
    CGColorSpaceRelease(colorspace);
    CGContextSetFontSize(ctx, fontDef.pixelSize);
    CGContextSetShouldAntialias(ctx, fontDef.pointSize > qt_antialiasing_threshold && !(fontDef.styleStrategy & QFont::NoAntialias));
    CGAffineTransform oldTextMatrix = CGContextGetTextMatrix(ctx);
    CGAffineTransform cgMatrix = CGAffineTransformMake(1, 0, 0, 1, 0, 0);
    CGAffineTransformConcat(cgMatrix, oldTextMatrix);

    if (synthesisFlags & QFontEngine::SynthesizedItalic)
        cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, tanf(14 * acosf(0) / 90), 1, 0, 0));

    cgMatrix = CGAffineTransformConcat(cgMatrix, multiEngine->transform);

    CGContextSetTextMatrix(ctx, cgMatrix);
    CGContextSetRGBFillColor(ctx, 1, 1, 1, 1);
    CGContextSetTextDrawingMode(ctx, kCGTextFill);
    CGContextSetFont(ctx, cgFont);

    qreal pos_x = -br.x.toReal()+1, pos_y = im.height()+br.y.toReal();
    CGContextSetTextPosition(ctx, pos_x, pos_y);

    CGSize advance;
    advance.width = 0;
    advance.height = 0;
    CGGlyph cgGlyph = glyph;
    CGContextShowGlyphsWithAdvances(ctx, &cgGlyph, &advance, 1);

    if (synthesisFlags & QFontEngine::SynthesizedBold) {
        CGContextSetTextPosition(ctx, pos_x + 0.5 * lineThickness().toReal(), pos_y);
        CGContextShowGlyphsWithAdvances(ctx, &cgGlyph, &advance, 1);
    }

    CGContextRelease(ctx);

    QImage indexed(im.width(), im.height(), QImage::Format_Indexed8);
    QVector<QRgb> colors(256);
    for (int i=0; i<256; ++i)
        colors[i] = qRgba(0, 0, 0, i);
    indexed.setColorTable(colors);

    for (int y=0; y<im.height(); ++y) {
        uint *src = (uint*) im.scanLine(y);
        uchar *dst = indexed.scanLine(y);
        for (int x=0; x<im.width(); ++x) {
            *dst = qGray(*src);
            ++dst;
            ++src;
        }
    }

    return indexed;
}
Пример #14
0
static void 	Quartz_MetricInfo(int c, 
				  R_GE_gcontext *gc,
				  double* ascent, double* descent, 
				  double* width,
				  NewDevDesc *dd)
{
    FMetricRec myFMetric;
    QuartzDesc *xd = (QuartzDesc *) dd-> deviceSpecific;
    char testo[2];
	char *ff;
    CGrafPtr savedPort;
    Rect bounds;
    CGPoint position;
	unsigned char tmp;

    testo[0] = c;
    testo[1] = '\0';
/*    fprintf(stderr,"c=%c,>%s<\n",c,testo);
  */  GetPort(&savedPort);

    SetPort(GetWindowPort(xd->window));

    Quartz_SetFont(gc->fontfamily, gc->fontface, gc->cex,  gc->ps, dd);

    if(c==0){
        FontMetrics(&myFMetric);
        *ascent = xd->yscale *floor(gc->cex * gc->ps + 0.5) * FixedToFloat(myFMetric.ascent);
        *descent = xd->yscale*floor(gc->cex * gc->ps + 0.5) * FixedToFloat(myFMetric.descent);
    } else {

    CGContextSaveGState( GetContext(xd) );
    CGContextTranslateCTM( GetContext(xd), 0, 0 );
    CGContextScaleCTM( GetContext(xd), -1, 1);
    CGContextRotateCTM( GetContext(xd), -1.0 * 3.1416);
    CGContextSetTextDrawingMode( GetContext(xd), kCGTextInvisible );

	Quartz_SetFont(gc->fontfamily, gc->fontface, gc->cex,  gc->ps, dd);

	ff = Quartz_TranslateFontFamily(gc->fontfamily, gc->fontface, xd->family);
	tmp = (unsigned char)c;
    if( (gc->fontface == 5) || (strcmp(ff,"Symbol")==0)){
       if( (tmp>31) && IsThisASymbol(tmp))
        testo[0] = (char)Lat2Uni[tmp-31-1];
       else	
		Quartz_SetFont(gc->fontfamily, -1, gc->cex,  gc->ps, dd);
	 } else {
        if(tmp>127)
         testo[0] = (char)Lat2Mac[tmp-127-1];
     }	 

    CGContextShowTextAtPoint( GetContext(xd), 0, 0, testo, 1 );
    
	
    position = CGContextGetTextPosition( GetContext(xd) );
    CGContextRestoreGState( GetContext(xd) );
    
        QDTextBounds(1,testo,&bounds);
        *ascent = -bounds.top;
        *descent = bounds.bottom;
        *width = bounds.right - bounds.left;
        *width = position.x;
    }    
    
    SetPort(savedPort);
/*    fprintf(stderr,"ascent=%f, descent=%f,width=%f\n",*ascent, *descent, *width);
*/
 return;
}
Пример #15
0
static void 	Quartz_Text(double x, double y, char *str,
			    double rot, double hadj, 
			    R_GE_gcontext *gc,
			    NewDevDesc *dd)
{
    int len,i;
    char *buf=NULL;
	char *ff;
	char symbuf;
    unsigned char tmp;
    QuartzDesc *xd = (QuartzDesc*)dd->deviceSpecific;
	 
    CGContextSaveGState( GetContext(xd) );
    CGContextTranslateCTM( GetContext(xd), x, y );

    CGContextScaleCTM( GetContext(xd) , -1, 1);

    CGContextRotateCTM( GetContext(xd) , (-1.0  + 2*rot/360)  * 3.1416);

    Quartz_SetStroke( gc->col, gc->gamma, dd);

    CGContextSetTextDrawingMode( GetContext(xd), kCGTextFill );
    Quartz_SetFill(gc->col, gc->gamma, dd);

	Quartz_SetFont(gc->fontfamily, gc->fontface, gc->cex,  gc->ps, dd);
    len = strlen(str);
	ff = Quartz_TranslateFontFamily(gc->fontfamily, gc->fontface, xd->family);

    if( ((gc->fontface == 5) || (strcmp(ff,"Symbol")==0)) && (len==1) ){
	   tmp = (unsigned char)str[0];
       if(tmp>31)
        symbuf = (char)Lat2Uni[tmp-31-1];
	   else
	    symbuf = str[0];
       if( !IsThisASymbol(tmp) ){
		 Quartz_SetFont(gc->fontfamily, -1, gc->cex,  gc->ps, dd);
		 symbuf = str[0];
       }
	 if(WeAreOnPanther) 
      CGContextShowTextAtPoint( GetContext(xd), 0, 0, &symbuf, len );
	 else
	  CGContextShowTextAtPoint( GetContext(xd), 0, 0, str, len );
     } else {
     if( (buf = malloc(len)) != NULL){

      if( strcmp(ff,"Symbol")==0){
		for(i=0;i <len;i++){
			tmp = (unsigned char)str[i];
			if(tmp>31)
				buf[i] = (char)Lat2Uni[tmp-31-1];
			else
				buf[i] = str[i];
		}
	  } else {
		for(i=0;i <len;i++){
			tmp = (unsigned char)str[i];
			if(tmp>127)
				buf[i] = (char)Lat2Mac[tmp-127-1];
			else
				buf[i] = str[i]; 
		}
	 }
	 CGContextShowTextAtPoint( GetContext(xd), 0, 0, buf, len );
     free(buf);
     }  
    }
    CGContextRestoreGState( GetContext(xd) );
}
Пример #16
0
void CGContextSetTextDrawingMode_wrap(CGContext *con, int j) {
  CGContextSetTextDrawingMode(con, CGTextDrawingMode(j));
}
Пример #17
0
void x_async_refresh(CGContextRef myContext,CGRect myBoundingBox)
{
	
#ifdef ENABLEQD
	CEmulatorMac* pEmu = (CEmulatorMac*)CEmulator::theEmulator;
	if (!pEmu) return ;
#endif
    
#ifndef DRIVER_IOS
	x_vbl_count++;
#endif
	
	addFrameRate(0);

	CHANGE_BORDER(1,0xFF);
	
	// OG
	if (macUsingCoreGraphics)
	{
		if(r_sim65816.is_emulator_offscreen_available() && g_kimage_offscreen.dev_handle)
		{
	
            /*
			void addConsoleWindow(Kimage* _dst);
			addConsoleWindow(&g_kimage_offscreen);
	*/
            
			CGContextSaveGState(myContext);
			
#ifndef DRIVER_IOS
		//	CGContextTranslateCTM(myContext,0.0, X_A2_WINDOW_HEIGHT);
        	CGContextTranslateCTM(myContext,0.0, myBoundingBox.size.height);    
			CGContextScaleCTM(myContext,1.0,-1.0);
#endif
			
			
			CGImageRef myImage = CGBitmapContextCreateImage((CGContextRef)g_kimage_offscreen.dev_handle);
            
            
            
			CGContextDrawImage(myContext, myBoundingBox, myImage);// 6
	
#ifndef VIDEO_SINGLEVLINE
			if (r_sim65816.get_video_fx() == VIDEOFX_CRT)
			{
                

				CGContextSetRGBFillColor(myContext,0,0,0,0.5);
				for(int h=0;h<g_kimage_offscreen.height;h+=2)
				{
					CGRect r = CGRectMake(0,h,g_kimage_offscreen.width_act,1);
					CGContextFillRect(myContext,r);
				}
                
			}            
           
#endif
            
			CGImageRelease(myImage);
		
			CGContextRestoreGState(myContext);
#ifndef DRIVER_IOS
			if (!messageLine.IsEmpty())
			{
				CGContextSaveGState(myContext);
				CGContextSetTextMatrix(myContext,CGAffineTransformIdentity);
				CGContextTranslateCTM(myContext,0.0, X_A2_WINDOW_HEIGHT);
				CGContextScaleCTM(myContext,1.0,-1.0);

				CGContextSelectFont(myContext, "Courier", 14.0, kCGEncodingMacRoman);
				CGContextSetTextDrawingMode(myContext, kCGTextFill);
				CGContextSetRGBFillColor (myContext, 1,1, 1, 1);
				CGContextSetShouldAntialias(myContext, true);
#define SHADOW 4.0
                

                CGFloat           myColorValues[] = {0.5, 0.5, 0.5, 1.0};
                
               
                CGColorSpaceRef  myColorSpace = CGColorSpaceCreateDeviceRGB ();// 9
                 CGColorRef  myColor = CGColorCreate (myColorSpace, myColorValues);
				CGContextSetShadowWithColor(myContext, CGSizeMake(SHADOW, -SHADOW), 4,
                                            myColor
                                            //CGColorCreateGenericGray(0.5,1.0)
                    
                                            );
				CGContextShowTextAtPoint(myContext, 20.0, X_A2_WINDOW_HEIGHT-20.0, messageLine.c_str(), messageLine.GetLength());
			
				CGContextRestoreGState(myContext);
				messageLineVBL--;
				if (messageLineVBL<0)
					messageLine.Empty();
				else 
					x_refresh_video();

			}
#endif
			
		}
		else
		{
			CGContextSaveGState(myContext);
#if defined(DRIVER_IOS)
            // efface en noir si l'émulateur n'avait pas encore démarré (le cas sur 3GS)
			CGContextSetRGBFillColor (myContext, 0, 0, 0, 1);
#else
            CGContextSetRGBFillColor (myContext, 0, 0, 1, 1);
#endif
			CGContextFillRect (myContext, CGRectMake (0, 0, X_A2_WINDOW_WIDTH, X_A2_WINDOW_HEIGHT));

			CGContextRestoreGState(myContext);

		}
		
	}
	else
	{
#ifdef ENABLEQD
		CGrafPtr window_port = pEmu->window_port;
		Rect src_rect;
		Rect dest_rect;
		SetRect(&src_rect,0,0,704,462);
		SetRect(&dest_rect,0,0,704,462);
		
		if (pixmap_backbuffer)
			CopyBits( (BitMap *)(*pixmap_backbuffer),
					 GetPortBitMapForCopyBits(window_port), &src_rect, &dest_rect,
					 srcCopy, NULL);
		
#endif
	}
	
	
	CHANGE_BORDER(1,0);
    
    if (r_sim65816.is_emulator_offscreen_available() && g_driver.x_handle_state_on_paint)
        g_driver.x_handle_state_on_paint(myBoundingBox.size.width,myBoundingBox.size.height);

}
PsychError SCREENTestTexture(void) 
{
#if PSYCH_SYSTEM == PSYCH_OSX

    PsychWindowRecordType 	*winRec;
    CGContextRef			cgContext;
    unsigned int			memoryTotalSizeBytes, memoryRowSizeBytes;
    UInt32					*textureMemory;
    int						stringLength, totalTexels, i;
    GLuint					myTexture;
    CGColorSpaceRef			cgColorSpace;
    
    			
    //all subfunctions should have these two lines.  
    PsychPushHelp(useString, synopsisString, seeAlsoString);
    if(PsychIsGiveHelp()){PsychGiveHelp();return(PsychError_none);};
    
    //Get the window structure for the onscreen window.  It holds the onscreein GL context which we will need in the
    //final step when we copy the texture from system RAM onto the screen.
    PsychErrorExit(PsychCapNumInputArgs(1));   	
    PsychErrorExit(PsychRequireNumInputArgs(1)); 	
    PsychErrorExit(PsychCapNumOutputArgs(1));  
    PsychAllocInWindowRecordArg(1, TRUE, &winRec);
    if(!PsychIsOnscreenWindow(winRec))
        PsychErrorExitMsg(PsychError_user, "Onscreen window pointer required");
        
    //allocate memory for the surface
    memoryRowSizeBytes=sizeof(UInt32) * textureSizeX;
    memoryTotalSizeBytes= memoryRowSizeBytes * textureSizeY;
    textureMemory=(UInt32 *)malloc(memoryTotalSizeBytes);
    if(!textureMemory)
            PsychErrorExitMsg(PsychError_internal, "Failed to allocate surface memory\n");
    
    if(useQuartz){
        //Create the Core Graphics bitmap graphics context.  We have to be careful to specify arguments which will allow us to store the texture as an OpenGL texture. 
        //The choice of color space needs to be checked.  
        cgColorSpace=CGColorSpaceCreateDeviceRGB();
        cgContext= CGBitmapContextCreate(textureMemory, textureSizeX, textureSizeY, cg_RGBA_32_BitsPerComponent, memoryRowSizeBytes, cgColorSpace, cg_RGBA_32_AlphaOption);
        if(!cgContext){
            free((void *)textureMemory);
            PsychErrorExitMsg(PsychError_internal, "Failed to allocate CG Bimap Context\n");
        }
            
        //	Draw some text into the bitmap context.  We need to set font, size, pen (drawing mode), color, alpha, text position.
        
        //	There are two ways to select the font in a Core Graphics Quartz context depending on the type of font.
        //	1) CGContextSetFont() for Apple Type Services (ATS) font aka "The Right Way"
        //		A) call CGFontCreateWithPlatformFont() which returns a CGFontRef
        //		B) call CGContextSetFont() to set the font to be the drawing font within a context.
        //  2) CGContextSelectFont() for MacRoman aka "How We Do It"
        //
        //  Using MacRoman seems to mean that we just change the coding, though CGContextSelectFont().  For info on using ATS fonts see:
        // 	http://developer.apple.com/documentation/Carbon/Reference/ATS/
        CGContextSelectFont(cgContext, "Helvetica", (float)24, kCGEncodingMacRoman);		//set the font and its size.
        CGContextSetTextDrawingMode(cgContext, kCGTextFill);					//set the pen to be a filled pen
        CGContextSetRGBStrokeColor(cgContext, (float)0.5, (float)0.5, (float)0.0, (float)1.0);	//set the stroke color and alpha
        CGContextSetRGBFillColor(cgContext, (float)0.5, (float)0.5, (float)0.0, (float)1.0);	//set the fill color and alpha
        stringLength=strlen(textString);
        CGContextShowTextAtPoint(cgContext, (float)textPositionX, (float)textPositionY, textString, stringLength);	//draw at specified location.
        CGContextFlush(cgContext); 	//this might not be necessary but do it just in case.
    }else{
        //fill the texture memory by poking bits in the array which will be turned into a texture.
        totalTexels=textureSizeX * textureSizeY;
        for(i=0;i<totalTexels;i++)
            textureMemory[i]=	redFill << 24 | greenFill | 16 << blueFill << 8 | alphaFill;
     }       

    //Convert the CG graphics bitmap (Quartz surface) into a CG texture.  GL thinks we are loading the texture from memory we indicate to glTexImage2D, but really
    //we are just setting the texture to share the same memory as the Quartz surface.
    PsychSetGLContext(winRec); 
    glEnable(GL_TEXTURE_RECTANGLE_EXT);
    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
    glGenTextures(1, &myTexture);						//create an index "name" for our texture
    glBindTexture(GL_TEXTURE_RECTANGLE_EXT, myTexture);			//instantiate a texture of type associated with the index and set it to be the target for subsequent gl texture operators.
    glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, 1);			//tell gl how to unpack from our memory when creating a surface, namely don't really unpack it but use it for texture storage.
    glTexParameteri(GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_MIN_FILTER, GL_NEAREST);	//specify interpolation scaling rule for copying from texture.  
    glTexParameteri(GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_MAG_FILTER, GL_NEAREST);  //specify interpolation scaling rule from copying from texture.
    glTexParameteri(GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
    glTexParameteri(GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
    glTexImage2D(GL_TEXTURE_RECTANGLE_EXT, 0, GL_RGBA,  textureSizeX, textureSizeY, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, textureMemory);
    
    //Copy the texture to the display.  What are the s and  t indices  of the first pixel of the texture ? 0 or 1 ?
    //set the GL context to be the onscreen window
    glBegin(GL_QUADS);
        glTexCoord2d(0.0, 0.0);					glVertex2d(0.0, 0.0);
        glTexCoord2d(textureSizeX, 0.0 );			glVertex2d(textureSizeX, 0.0);
        glTexCoord2d(textureSizeX, textureSizeY);		glVertex2d(textureSizeX, textureSizeY);
        glTexCoord2d(0.0, textureSizeY);			glVertex2d(0.0, textureSizeY);
    glEnd();
    glFlush();	
    glDisable(GL_TEXTURE_RECTANGLE_EXT);

    //Close  up shop.  Unlike with normal textures is important to release the context before deallocating the memory which glTexImage2D() was given. 
    //First release the GL context, then the CG context, then free the memory.
    glDeleteTextures(1, &myTexture);	//Remove references from gl to the texture memory  & free gl's associated resources   
    if(useQuartz) CGContextRelease(cgContext);	//Remove references from Core Graphics to the texture memory & free Core Graphics' associated resources.
    free((void *)textureMemory);	//Free the memory
#endif
    return(PsychError_none);

}