Examples of GlyphMetrics

ae.java.awt.font.GlyphMetrics
The GlyphMetrics class represents infomation for a single glyph. A glyph is the visual representation of one or more characters. Many different glyphs can be used to represent a single character or combination of characters. GlyphMetrics instances are produced by {@link ae.java.awt.Font Font} and are applicableto a specific glyph in a particular Font.
Glyphs are either STANDARD, LIGATURE, COMBINING, or COMPONENT.
- STANDARD glyphs are commonly used to represent single characters.
- LIGATURE glyphs are used to represent sequences of characters.
- COMPONENT glyphs in a {@link GlyphVector} do not correspond to aparticular character in a text model. Instead, COMPONENT glyphs are added for typographical reasons, such as Arabic justification.
- COMBINING glyphs embellish STANDARD or LIGATURE glyphs, such as accent marks. Carets do not appear before COMBINING glyphs.
Other metrics available through GlyphMetrics are the components of the advance, the visual bounds, and the left and right side bearings.
Glyphs for a rotated font, or obtained from a GlyphVector which has applied a rotation to the glyph, can have advances that contain both X and Y components. Usually the advance only has one component.
The advance of a glyph is the distance from the glyph's origin to the origin of the next glyph along the baseline, which is either vertical or horizontal. Note that, in a GlyphVector, the distance from a glyph to its following glyph might not be the glyph's advance, because of kerning or other positioning adjustments.
The bounds is the smallest rectangle that completely contains the outline of the glyph. The bounds rectangle is relative to the glyph's origin. The left-side bearing is the distance from the glyph origin to the left of its bounds rectangle. If the left-side bearing is negative, part of the glyph is drawn to the left of its origin. The right-side bearing is the distance from the right side of the bounds rectangle to the next glyph origin (the origin plus the advance). If negative, part of the glyph is drawn to the right of the next glyph's origin. Note that the bounds does not necessarily enclose all the pixels affected when rendering the glyph, because of rasterization and pixel adjustment effects.
Although instances of GlyphMetrics can be directly constructed, they are almost always obtained from a GlyphVector. Once constructed, GlyphMetrics objects are immutable.
Example:
Querying a Font for glyph information
```
 Font font = ...; int glyphIndex = ...; GlyphMetrics metrics = GlyphVector.getGlyphMetrics(glyphIndex); int isStandard = metrics.isStandard(); float glyphAdvance = metrics.getAdvance(); 
```
@see ae.java.awt.Font @see GlyphVector
com.badlogic.gdx.graphics.g2d.freetype.FreeType.GlyphMetrics
com.google.code.appengine.awt.font.GlyphMetrics
com.jgraph.gaeawt.java.awt.font.GlyphMetrics
java.awt.font.GlyphMetrics
The GlyphMetrics class represents infomation for a single glyph. A glyph is the visual representation of one or more characters. Many different glyphs can be used to represent a single character or combination of characters. GlyphMetrics instances are produced by {@link java.awt.Font Font} and are applicable to a specific glyph in a particular Font.
Glyphs are either STANDARD, LIGATURE, COMBINING, or COMPONENT.
- STANDARD glyphs are commonly used to represent single characters.
- LIGATURE glyphs are used to represent sequences of characters.
- COMPONENT glyphs in a {@link GlyphVector} do not correspond to aparticular character in a text model. Instead, COMPONENT glyphs are added for typographical reasons, such as Arabic justification.
- COMBINING glyphs embellish STANDARD or LIGATURE glyphs, such as accent marks. Carets do not appear before COMBINING glyphs.
Other metrics available through GlyphMetrics are the components of the advance, the visual bounds, and the left and right side bearings.
Glyphs for a rotated font, or obtained from a GlyphVector which has applied a rotation to the glyph, can have advances that contain both X and Y components. Usually the advance only has one component.
The advance of a glyph is the distance from the glyph's origin to the origin of the next glyph along the baseline, which is either vertical or horizontal. Note that, in a GlyphVector, the distance from a glyph to its following glyph might not be the glyph's advance, because of kerning or other positioning adjustments.
The bounds is the smallest rectangle that completely contains the outline of the glyph. The bounds rectangle is relative to the glyph's origin. The left-side bearing is the distance from the glyph origin to the left of its bounds rectangle. If the left-side bearing is negative, part of the glyph is drawn to the left of its origin. The right-side bearing is the distance from the right side of the bounds rectangle to the next glyph origin (the origin plus the advance). If negative, part of the glyph is drawn to the right of the next glyph's origin. Note that the bounds does not necessarily enclose all the pixels affected when rendering the glyph, because of rasterization and pixel adjustment effects.
Although instances of GlyphMetrics can be directly constructed, they are almost always obtained from a GlyphVector. Once constructed, GlyphMetrics objects are immutable.
Example:
Querying a Font for glyph information
```
 Font font = ...; int glyphIndex = ...; GlyphMetrics metrics = GlyphVector.getGlyphMetrics(glyphIndex); int isStandard = metrics.isStandard(); float glyphAdvance = metrics.getAdvance(); 
```
@see java.awt.Font @see GlyphVector
org.eclipse.swt.graphics.GlyphMetrics
.org/swt/">Sample code and further information @since 3.2
org.jfree.fonts.text.font.GlyphMetrics
A return value for glyph metrics. It is used as return value by the font size producer. @author Thomas Morgner
org.openscience.jchempaint.renderer.font.GlyphMetrics
org.pentaho.reporting.libraries.fonts.text.font.GlyphMetrics
A return value for glyph metrics. It is used as return value by the font size producer. @author Thomas Morgner

Examples of java.awt.font.GlyphMetrics

            (AWTGlyphGeometryCache)fontCache.get(font.awtFont);


        AWTGlyphGeometryCache.Value v = glyphCache.get(c);
        if (v == null) {
            Shape outline = gv.getGlyphOutline(glyphIndex);
            GlyphMetrics metrics = gv.getGlyphMetrics(glyphIndex);
            Rectangle2D gmB = metrics.getBounds2D();
            if (AWTGVTGlyphVector.outlinesPositioned()) {
                AffineTransform tr = AffineTransform.getTranslateInstance
                    (-glyphPos.getX(), -glyphPos.getY());
                outline = tr.createTransformedShape(outline);
            }

View Full Code Here

Examples of java.awt.font.GlyphMetrics

     */
    public GVTGlyphMetrics(float horizontalAdvance, 
                           float verticalAdvance,
                           Rectangle2D bounds, 
                           byte glyphType) {
        this.gm = new GlyphMetrics(horizontalAdvance, bounds, glyphType);
        this.verticalAdvance = verticalAdvance;
    }

View Full Code Here

Examples of java.awt.font.GlyphMetrics


  // iterate through the GlyphVector placing each glyph


  for (int i = 0; i < glyphs.getNumGlyphs(); i++) {
      
      GlyphMetrics gm = glyphs.getGlyphMetrics(i);


      float charAdvance = gm.getAdvance();


      Shape glyph = glyphs.getGlyphOutline(i);


      // if lengthAdjust was GLYPHS, then scale the glyph
      // by the lengthRatio in the X direction

View Full Code Here

Examples of java.awt.font.GlyphMetrics


            int missingGlyphCode[] = new int[1];
            missingGlyphCode[0] = commonSizeFont.getMissingGlyphCode();
            GlyphVector gv = commonSizeFont.createGlyphVector(frc, missingGlyphCode);
            Shape missingGlyphShape = gv.getGlyphOutline(0);
            GlyphMetrics gm = gv.getGlyphMetrics(0);


            // need to turn the missing glyph upside down to be in the font
            // coordinate system (i.e Y axis up)
            AffineTransform at = AffineTransform.getScaleInstance(1, -1);
            missingGlyphShape = at.createTransformedShape(missingGlyphShape);


            missingGlyphElement.setAttributeNS(null, SVG_D_ATTRIBUTE,
                                    SVGPath.toSVGPathData(missingGlyphShape));
            missingGlyphElement.setAttributeNS(null, SVG_HORIZ_ADV_X_ATTRIBUTE,
                                               "" + gm.getAdvance());
            fontDef.appendChild(missingGlyphElement);


            // set the font's default horizontal advance to be the same as
            // the missing glyph
            fontDef.setAttributeNS(null, SVG_HORIZ_ADV_X_ATTRIBUTE,  "" + gm.getAdvance());


            // set the ascent and descent attributes
            LineMetrics lm = commonSizeFont.getLineMetrics("By", frc);
            fontFace.setAttributeNS(null, SVG_ASCENT_ATTRIBUTE, "" + lm.getAscent());
            fontFace.setAttributeNS(null, SVG_DESCENT_ATTRIBUTE, "" + lm.getDescent());


            //
            // Font ID
            //
            fontDef.setAttributeNS(null, ATTR_ID,
                                   generatorContext.idGenerator.
                                   generateID(ID_PREFIX_FONT));
        }


        //
        // add any new glyphs to the fontDef here
        //


        // process the characters in textUsingFont backwards since the new chars
        // are at the end, can stop when find a char that already has a glyph
        for (int i = textUsingFont.length()-1; i >= 0; i--) {
            char c = textUsingFont.charAt(i);
            boolean foundGlyph = false;
            NodeList fontChildren = fontDef.getChildNodes();
            for (int j = 0; j < fontChildren.getLength(); j++) {
                if (fontChildren.item(j) instanceof Element) {
                    Element childElement = (Element)fontChildren.item(j);
                    if (childElement.getAttributeNS(null,
                            SVG_UNICODE_ATTRIBUTE).equals(""+c)) {
                        foundGlyph = true;
                        break;
                    }
                }
            }
            if (!foundGlyph) {
                // need to create one
                Element glyphElement
                    = domFactory.createElementNS(SVG_NAMESPACE_URI,
                                                 SVG_GLYPH_TAG);


                GlyphVector gv = commonSizeFont.createGlyphVector(frc, ""+c);
                Shape glyphShape = gv.getGlyphOutline(0);
                GlyphMetrics gm = gv.getGlyphMetrics(0);


                // need to turn the glyph upside down to be in the font
                // coordinate system (i.e Y axis up)
                AffineTransform at = AffineTransform.getScaleInstance(1, -1);
                glyphShape = at.createTransformedShape(glyphShape);


                glyphElement.setAttributeNS(null, SVG_D_ATTRIBUTE,
                                            SVGPath.toSVGPathData(glyphShape));
                glyphElement.setAttributeNS(null, SVG_HORIZ_ADV_X_ATTRIBUTE,
                                            "" + gm.getAdvance());
                glyphElement.setAttributeNS(null, SVG_UNICODE_ATTRIBUTE,
                                            "" + c);


                fontDef.appendChild(glyphElement);
            } else {

View Full Code Here

Examples of java.awt.font.GlyphMetrics

            (AWTGlyphGeometryCache)fontCache.get(font.awtFont);


        AWTGlyphGeometryCache.Value v = glyphCache.get(c);
        if (v == null) {
            Shape outline = gv.getGlyphOutline(glyphIndex);
            GlyphMetrics metrics = gv.getGlyphMetrics(glyphIndex);
            Rectangle2D gmB = metrics.getBounds2D();
            if (AWTGVTGlyphVector.outlinesPositioned()) {
                AffineTransform tr = AffineTransform.getTranslateInstance
                    (-glyphPos.getX(), -glyphPos.getY());
                outline = tr.createTransformedShape(outline);
            }

View Full Code Here

Examples of java.awt.font.GlyphMetrics

     */
    public GVTGlyphMetrics(float horizontalAdvance, 
                           float verticalAdvance,
                           Rectangle2D bounds, 
                           byte glyphType) {
        this.gm = new GlyphMetrics(horizontalAdvance, bounds, glyphType);
        this.verticalAdvance = verticalAdvance;
    }

View Full Code Here

Examples of java.awt.font.GlyphMetrics

            (AWTGlyphGeometryCache)fontCache.get(font.awtFont);


        AWTGlyphGeometryCache.Value v = glyphCache.get(c);
        if (v == null) {
            Shape outline = gv.getGlyphOutline(glyphIndex);
            GlyphMetrics metrics = gv.getGlyphMetrics(glyphIndex);
            Rectangle2D gmB = metrics.getBounds2D();
            if (AWTGVTGlyphVector.outlinesPositioned()) {
                AffineTransform tr = AffineTransform.getTranslateInstance
                    (-glyphPos.getX(), -glyphPos.getY());
                outline = tr.createTransformedShape(outline);
            }

View Full Code Here

Examples of java.awt.font.GlyphMetrics

     */
    public GVTGlyphMetrics(float horizontalAdvance, 
                           float verticalAdvance,
                           Rectangle2D bounds, 
                           byte glyphType) {
        this.gm = new GlyphMetrics(horizontalAdvance, bounds, glyphType);
        this.verticalAdvance = verticalAdvance;
    }

View Full Code Here

Examples of java.awt.font.GlyphMetrics

            int[] missingGlyphCode = new int[1];
            missingGlyphCode[0] = commonSizeFont.getMissingGlyphCode();
            GlyphVector gv;
            gv = commonSizeFont.createGlyphVector(localFRC, missingGlyphCode);
            Shape missingGlyphShape = gv.getGlyphOutline(0);
            GlyphMetrics gm = gv.getGlyphMetrics(0);


            // need to turn the missing glyph upside down to be in the font
            // coordinate system (i.e Y axis up)
            AffineTransform at = AffineTransform.getScaleInstance(1, -1);
            missingGlyphShape = at.createTransformedShape(missingGlyphShape);


            missingGlyphElement.setAttributeNS(null, SVG_D_ATTRIBUTE,
                                    SVGPath.toSVGPathData(missingGlyphShape, generatorContext));
            missingGlyphElement.setAttributeNS(null, SVG_HORIZ_ADV_X_ATTRIBUTE, String.valueOf( gm.getAdvance() ) );
            fontDef.appendChild(missingGlyphElement);


            // set the font's default horizontal advance to be the same as
            // the missing glyph
            fontDef.setAttributeNS(null, SVG_HORIZ_ADV_X_ATTRIBUTE, String.valueOf( gm.getAdvance() ) );


            // set the ascent and descent attributes
            LineMetrics lm = commonSizeFont.getLineMetrics("By", localFRC);
            fontFace.setAttributeNS(null, SVG_ASCENT_ATTRIBUTE,  String.valueOf( lm.getAscent() ) );
            fontFace.setAttributeNS(null, SVG_DESCENT_ATTRIBUTE, String.valueOf( lm.getDescent() ) );


            //
            // Font ID
            //
            fontDef.setAttributeNS(null, SVG_ID_ATTRIBUTE,  generatorContext.idGenerator.generateID(ID_PREFIX_FONT));
        }


        //
        // add any new glyphs to the fontDef here
        //
        String textUsingFont = clh.getNewChars();
        clh.clearNewChars();


        // process the characters in textUsingFont backwards since the new chars
        // are at the end, can stop when find a char that already has a glyph
        for (int i = textUsingFont.length()-1; i >= 0; i--) {
            char c = textUsingFont.charAt(i);
            String searchStr = String.valueOf( c );
            boolean foundGlyph = false;
            NodeList fontChildren = fontDef.getChildNodes();
            for (int j = 0; j < fontChildren.getLength(); j++) {
                if (fontChildren.item(j) instanceof Element) {
                    Element childElement = (Element)fontChildren.item(j);
                    if (childElement.getAttributeNS(null, SVG_UNICODE_ATTRIBUTE).equals( searchStr )) {
                        foundGlyph = true;
                        break;
                    }
                }
            }
            if (!foundGlyph) {
                // need to create one
                Element glyphElement
                    = domFactory.createElementNS(SVG_NAMESPACE_URI,
                                                 SVG_GLYPH_TAG);


                GlyphVector gv;
                gv = commonSizeFont.createGlyphVector(localFRC, ""+c);
                Shape glyphShape = gv.getGlyphOutline(0);
                GlyphMetrics gm = gv.getGlyphMetrics(0);


                // need to turn the glyph upside down to be in the font
                // coordinate system (i.e Y axis up)
                AffineTransform at = AffineTransform.getScaleInstance(1, -1);
                glyphShape = at.createTransformedShape(glyphShape);


                glyphElement.setAttributeNS(null, SVG_D_ATTRIBUTE,
                                            SVGPath.toSVGPathData(glyphShape, generatorContext));
                glyphElement.setAttributeNS(null, SVG_HORIZ_ADV_X_ATTRIBUTE, String.valueOf( gm.getAdvance() ) );
                glyphElement.setAttributeNS(null, SVG_UNICODE_ATTRIBUTE,     String.valueOf( c ) );


                fontDef.appendChild(glyphElement);
            } else {
                // have reached the chars in textUsingFont that already

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Examples of java.awt.font.GlyphMetrics


            int missingGlyphCode[] = new int[1];
            missingGlyphCode[0] = commonSizeFont.getMissingGlyphCode();
            GlyphVector gv = commonSizeFont.createGlyphVector(frc, missingGlyphCode);
            Shape missingGlyphShape = gv.getGlyphOutline(0);
            GlyphMetrics gm = gv.getGlyphMetrics(0);


            // need to turn the missing glyph upside down to be in the font
            // coordinate system (i.e Y axis up)
            AffineTransform at = AffineTransform.getScaleInstance(1, -1);
            missingGlyphShape = at.createTransformedShape(missingGlyphShape);


            missingGlyphElement.setAttributeNS(null, SVG_D_ATTRIBUTE,
                                    SVGPath.toSVGPathData(missingGlyphShape, generatorContext));
            missingGlyphElement.setAttributeNS(null, SVG_HORIZ_ADV_X_ATTRIBUTE,
                                               "" + gm.getAdvance());
            fontDef.appendChild(missingGlyphElement);


            // set the font's default horizontal advance to be the same as
            // the missing glyph
            fontDef.setAttributeNS(null, SVG_HORIZ_ADV_X_ATTRIBUTE,  "" + gm.getAdvance());


            // set the ascent and descent attributes
            LineMetrics lm = commonSizeFont.getLineMetrics("By", frc);
            fontFace.setAttributeNS(null, SVG_ASCENT_ATTRIBUTE, "" + lm.getAscent());
            fontFace.setAttributeNS(null, SVG_DESCENT_ATTRIBUTE, "" + lm.getDescent());


            //
            // Font ID
            //
            fontDef.setAttributeNS(null, ATTR_ID,
                                   generatorContext.idGenerator.
                                   generateID(ID_PREFIX_FONT));
        }


        //
        // add any new glyphs to the fontDef here
        //


        // process the characters in textUsingFont backwards since the new chars
        // are at the end, can stop when find a char that already has a glyph
        for (int i = textUsingFont.length()-1; i >= 0; i--) {
            char c = textUsingFont.charAt(i);
            boolean foundGlyph = false;
            NodeList fontChildren = fontDef.getChildNodes();
            for (int j = 0; j < fontChildren.getLength(); j++) {
                if (fontChildren.item(j) instanceof Element) {
                    Element childElement = (Element)fontChildren.item(j);
                    if (childElement.getAttributeNS(null,
                            SVG_UNICODE_ATTRIBUTE).equals(""+c)) {
                        foundGlyph = true;
                        break;
                    }
                }
            }
            if (!foundGlyph) {
                // need to create one
                Element glyphElement
                    = domFactory.createElementNS(SVG_NAMESPACE_URI,
                                                 SVG_GLYPH_TAG);


                GlyphVector gv = commonSizeFont.createGlyphVector(frc, ""+c);
                Shape glyphShape = gv.getGlyphOutline(0);
                GlyphMetrics gm = gv.getGlyphMetrics(0);


                // need to turn the glyph upside down to be in the font
                // coordinate system (i.e Y axis up)
                AffineTransform at = AffineTransform.getScaleInstance(1, -1);
                glyphShape = at.createTransformedShape(glyphShape);


                glyphElement.setAttributeNS(null, SVG_D_ATTRIBUTE,
                                            SVGPath.toSVGPathData(glyphShape, generatorContext));
                glyphElement.setAttributeNS(null, SVG_HORIZ_ADV_X_ATTRIBUTE,
                                            "" + gm.getAdvance());
                glyphElement.setAttributeNS(null, SVG_UNICODE_ATTRIBUTE,
                                            "" + c);


                fontDef.appendChild(glyphElement);
            } else {

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