Legacy ImageMagick Discussions Archive

Code: Select all

#include <windows.h>
#include <wand/magick_wand.h>

// The pattern_name MUST have a leading #
void set_tile_pattern(DrawingWand *d_wand,char *pattern_name,char *pattern_file)
{
	MagickWand *t_wand;
	long w,h;

	t_wand=NewMagickWand();  
	MagickReadImage(t_wand,pattern_file);
	// Read the tile's width and height
	w = MagickGetImageWidth(t_wand);
	h = MagickGetImageHeight(t_wand);
	DrawPushPattern(d_wand, pattern_name+1, 0, 0, w, h);
	DrawComposite(d_wand, SrcOverCompositeOp, 0, 0, 0, 0, t_wand);
	DrawPopPattern(d_wand);
	DrawSetFillPatternURL(d_wand, pattern_name);
}
void test_wand(LPTSTR lpCmdLine)
{
	MagickWand *magick_wand = NULL;
	MagickWand *c_wand = NULL;
	DrawingWand *d_wand = NULL;
	PixelWand *p_wand = NULL;


	MagickWandGenesis();


// Text effect 1 - shadow effect using MagickShadowImage
	magick_wand = NewMagickWand();
	d_wand = NewDrawingWand();
	p_wand = NewPixelWand();
	PixelSetColor(p_wand,"none");
	// Create a new transparent image
	MagickNewImage(magick_wand,640,480,p_wand);

	// Set up a 72 point white font 
	PixelSetColor(p_wand,"white");
	DrawSetFillColor(d_wand,p_wand);
	DrawSetFont (d_wand, "Verdana-Bold-Italic" ) ;
	DrawSetFontSize(d_wand,72);
	// Add a black outline to the text
	PixelSetColor(p_wand,"black");
	DrawSetStrokeColor(d_wand,p_wand);
	// Turn antialias on - not sure this makes a difference
	DrawSetTextAntialias(d_wand,MagickTrue);
	// Now draw the text
	DrawAnnotation(d_wand,200,140,"Magick");
	// Draw the image on to the magick_wand
	MagickDrawImage(magick_wand,d_wand);

	// Trim the image down to include only the text
	MagickTrimImage(magick_wand,0);
	// equivalent to the command line +repage
	MagickResetImagePage(magick_wand,"");

	// Make a copy of the text image
	c_wand = CloneMagickWand(magick_wand);

	// Set the background colour to blue for the shadow
	PixelSetColor(p_wand,"blue");
	MagickSetImageBackgroundColor(magick_wand,p_wand);

	// Opacity is a real number indicating (apparently) percentage
	MagickShadowImage(magick_wand,79,4,5,5);
	
	// Composite the text on top of the shadow
	MagickCompositeImage(magick_wand,c_wand,OverCompositeOp,5,5);

	// Create a new image the same size as the text image and put a solid colour
	// as its background
	PixelSetColor(p_wand,"rgb(125,215,255)");
	if(c_wand)c_wand = DestroyMagickWand(c_wand);
	c_wand = NewMagickWand();
	MagickNewImage(c_wand,MagickGetImageWidth(magick_wand),MagickGetImageHeight(magick_wand),p_wand);
	// Now composite the shadowed text over the plain background
	MagickCompositeImage(c_wand,magick_wand,OverCompositeOp,0,0);
	// and write the result
	MagickWriteImage(c_wand,"text_shadow.png"); 

	/* Clean up */
	if(magick_wand)magick_wand = DestroyMagickWand(magick_wand);
	if(c_wand)c_wand = DestroyMagickWand(c_wand);
	if(d_wand)d_wand = DestroyDrawingWand(d_wand);
	if(p_wand)p_wand = DestroyPixelWand(p_wand);

// Text effect 2 - patterned text
	magick_wand = NewMagickWand();
	d_wand = NewDrawingWand();
	p_wand = NewPixelWand();

	set_tile_pattern(d_wand,"#check","pattern:checkerboard");

	PixelSetColor(p_wand,"none");
	// Create a new transparent image
	MagickNewImage(magick_wand,640,480,p_wand);

	// Set up a 72 point font 
	DrawSetFont (d_wand, "Verdana-Bold-Italic" ) ;
	DrawSetFontSize(d_wand,72);
	// Now draw the text
	DrawAnnotation(d_wand,200,140,"Magick");
	// Draw the image on to the magick_wand
	MagickDrawImage(magick_wand,d_wand);
	// Trim the image
	MagickTrimImage(magick_wand,0);
	// Add a white border
	PixelSetColor(p_wand,"white");
	MagickBorderImage(magick_wand,p_wand,5,5);
	// and write it
	MagickWriteImage(magick_wand,"text_pattern.png");

	/* Clean up */
	if(magick_wand)magick_wand = DestroyMagickWand(magick_wand);
	if(d_wand)d_wand = DestroyDrawingWand(d_wand);
	if(p_wand)p_wand = DestroyPixelWand(p_wand);

	MagickWandTerminus();
}

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	// Used for text effect #3
	double dargs[1] = {120.};

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// Text effect 3 -  arc font 
//convert -size 320x100 xc:lightblue -font Candice -pointsize 72 \
//           -annotate +25+65 'Anthony' -distort Arc 120 \
//           -trim +repage -bordercolor lightblue -border 10  font_arc.jpg
	magick_wand = NewMagickWand();
	d_wand = NewDrawingWand();
	p_wand = NewPixelWand();

	// Create a 320x100 lightblue canvas
	PixelSetColor(p_wand,"lightblue");
	MagickNewImage(magick_wand,320,100,p_wand);

	// Set up a 72 point font 
	DrawSetFont (d_wand, "Verdana-Bold-Italic" ) ;
	DrawSetFontSize(d_wand,72);
	// Now draw the text
	DrawAnnotation(d_wand,25,65,"Magick");
	// Draw the image on to the magick_wand
	MagickDrawImage(magick_wand,d_wand);

	MagickDistortImage(magick_wand,ArcDistortion,1,dargs,MagickFalse);

	// Trim the image
	MagickTrimImage(magick_wand,0);
	// Add the border
	PixelSetColor(p_wand,"lightblue");
	MagickBorderImage(magick_wand,p_wand,10,10);

	// and write it
	MagickWriteImage(magick_wand,"text_arc.png");

	/* Clean up */
	if(magick_wand)magick_wand = DestroyMagickWand(magick_wand);
	if(d_wand)d_wand = DestroyDrawingWand(d_wand);
	if(p_wand)p_wand = DestroyPixelWand(p_wand);