Examples of org.apache.fop.complexscripts.fonts.ttx.TTXFile$Handler

Package org.apache.fop.complexscripts.fonts.ttx

Examples of org.apache.fop.complexscripts.fonts.ttx.TTXFile$Handler

org.apache.fop.complexscripts.fonts.ttx.TTXFile
This class supports a subset of the TTX file as produced by the Adobe FLEX SDK (AFDKO). In particular, it is used to parse a TTX file in order to extract character to glyph code mapping data, glyph definition data, glyph substitution data, and glyph positioning data. TTX files are used in FOP for testing and debugging purposes only. Such files are used to represent font data employed by complex script processing, and normally extracted directly from an opentype (or truetype) file. However, due to copyright restrictions, it is not possible to include most opentype (or truetype) font files directly in the FOP distribution. In such cases, TTX files are used to distribute a subset of the complex script advanced table information contained in certain font files to facilitate testing. @author Glenn Adams

    private void performLookups ( Object[] tp, Object[] td ) {
        assert tp.length > 0;
        if ( td.length > 1 ) {
            String fid = (String) td[0];
            String lid = (String) td[1];
            TTXFile tf = findTTX ( fid );
            assertTrue ( tf != null );
            GlyphDefinitionTable gdef = tf.getGDEF();
            assertTrue ( gdef != null );
            String[][] tia = (String[][]) td[2];
            switch ( (int) ( (Integer) tp[0] ) ) {
            case GlyphDefinitionTable.GDEF_LOOKUP_TYPE_GLYPH_CLASS:
                performGlyphClassLookups ( tf, lid, tia );

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    private TTXFile findTTX ( String fid ) {
        String pn = findTTXPath ( fid );
        assertTrue ( pn != null );
        try {
            TTXFile tf = TTXFile.getFromCache ( pn );
            return tf;
        } catch ( Exception e ) {
            fail ( e.getMessage() );
            return null;
        }

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            String fid = (String) td[0];
            String lid = (String) td[1];
            String script = (String) td[2];
            String language = (String) td[3];
            String feature = (String) td[4];
            TTXFile tf = findTTX ( fid );
            assertTrue ( tf != null );
            GlyphSubstitutionTable gsub = tf.getGSUB();
            assertTrue ( gsub != null );
            GlyphSubstitutionSubtable[] sta = findGSUBSubtables ( gsub, script, language, feature, lid );
            assertTrue ( sta != null );
            assertTrue ( sta.length > 0 );
            ScriptContextTester sct = findScriptContextTester ( script, language, feature );
            String[][][] tia = (String[][][]) td[5];            // test instance array
            for ( String[][] ti : tia ) {                       // test instance
                if ( ti != null ) {
                    if ( ti.length > 1 ) {                      // must have at least input and output glyph id arrays
                        String[] igia = ti[0];                  // input glyph id array
                        String[] ogia = ti[1];                  // output glyph id array
                        GlyphSequence igs = tf.getGlyphSequence ( igia );
                        GlyphSequence ogs = tf.getGlyphSequence ( ogia );
                        GlyphSequence tgs = GlyphSubstitutionSubtable.substitute ( igs, script, language, feature, sta, sct );
                        assertSameGlyphs ( ogs, tgs );
                    }
                }
            }

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    private TTXFile findTTX ( String fid ) {
        String pn = findTTXPath ( fid );
        assertTrue ( pn != null );
        try {
            TTXFile tf = TTXFile.getFromCache ( pn );
            return tf;
        } catch ( Exception e ) {
            fail ( e.getMessage() );
            return null;
        }

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            String fid = (String) td[0];
            String lid = (String) td[1];
            String script = (String) td[2];
            String language = (String) td[3];
            String feature = (String) td[4];
            TTXFile tf = findTTX ( fid );
            assertTrue ( tf != null );
            GlyphPositioningTable gpos = tf.getGPOS();
            assertTrue ( gpos != null );
            GlyphPositioningSubtable[] sta = findGPOSSubtables ( gpos, script, language, feature, lid );
            assertTrue ( sta != null );
            assertTrue ( sta.length > 0 );
            ScriptContextTester sct = findScriptContextTester ( script, language, feature );
            Object[][] tia = (Object[][]) td[5];                // test instance array
            for ( Object[] ti : tia ) {                         // test instance
                if ( ti != null ) {
                    if ( ti.length > 0 ) {                      // must have at least input glyphs
                        String[] igia = (String[]) ti[0];       // input glyph id array
                        int[][] ogpa = (int[][]) ti[1];         // output glyph positioning array
                        GlyphSequence igs = tf.getGlyphSequence ( igia );
                        int[] widths = tf.getWidths();
                        int[][] tgpa = new int [ igia.length ] [ 4 ];
                        boolean adjusted = GlyphPositioningSubtable.position ( igs, script, language, feature, 1000, sta, widths, tgpa, sct );
                        assertTrue ( adjusted );
                        assertSamePositions ( ogpa, tgpa );
                    }

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    private TTXFile findTTX ( String fid ) {
        String pn = findTTXPath ( fid );
        assertTrue ( pn != null );
        try {
            TTXFile tf = TTXFile.getFromCache ( pn );
            return tf;
        } catch ( Exception e ) {
            fail ( e.getMessage() );
            return null;
        }

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        assert data != null;
        assert data.size() > 0;
        String script = null;
        String language = null;
        String tfn = null;
        TTXFile tf = null;
        GlyphSubstitutionTable gsub = null;
        GlyphPositioningTable gpos = null;
        int[] widths = null;
        for ( Object[] d : data ) {
            if ( script == null ) {
                assert d.length >= 4;
                script = (String) d[0];
                language = (String) d[1];
                tfn = (String) d[3];
                tf = TTXFile.getFromCache ( ttxFontsDir + File.separator + tfn );
                assertTrue ( tf != null );
                gsub = tf.getGSUB();
                assertTrue ( gsub != null );
                gpos = tf.getGPOS();
                assertTrue ( gpos != null );
                widths = tf.getWidths();
                assertTrue ( widths != null );
            } else {
                assert tf != null;
                assert gsub != null;
                assert gpos != null;
                assert tfn != null;
                assert d.length >= 4;
                String wf = (String) d[0];
                int[] iga = (int[]) d[1];
                int[] oga = (int[]) d[2];
                int[][] paa = (int[][]) d[3];
                GlyphSequence tigs = tf.mapCharsToGlyphs ( wf );
                assertSameGlyphs ( iga, getGlyphs ( tigs ), "input glyphs", wf, tfn );
                GlyphSequence togs = gsub.substitute ( tigs, script, language );
                assertSameGlyphs ( oga, getGlyphs ( togs ), "output glyphs", wf, tfn );
                int[][] tpaa = new int [ togs.getGlyphCount() ] [ 4 ];
                if ( gpos.position ( togs, script, language, 1000, widths, tpaa ) ) {

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    }


    private static void compile ( String script, String language, String spn ) {
        int fno = 0;
        for ( String tfn : ttxFonts ) {
            TTXFile tf = TTXFile.getFromCache ( ttxFontsDir + File.separator + tfn );
            assert tf != null;
            List data = compile ( script, language, spn, tfn, tf );
            output ( makeDataPathName ( spn, fno++ ), data );
        }
    }

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