Java GlyphVector.getGlyphPositions方法代码示例

import java.awt.font.GlyphVector; //导入方法依赖的package包/类
private boolean samePositions(GlyphVector gv, int[] gvcodes,
                              int[] origCodes, float[] origPositions) {

    int numGlyphs = gv.getNumGlyphs();
    float[] gvpos = gv.getGlyphPositions(0, numGlyphs, null);

    /* this shouldn't happen here, but just in case */
    if (numGlyphs != gvcodes.length ||  /* real paranoia here */
        origCodes.length != gvcodes.length ||
        origPositions.length != gvpos.length) {
        return false;
    }

    for (int i=0; i<numGlyphs; i++) {
        if (gvcodes[i] != origCodes[i] || gvpos[i] != origPositions[i]) {
            return false;
        }
    }
    return true;
}
 

import java.awt.font.GlyphVector; //导入方法依赖的package包/类
/**
 * Utility used by getStandardGV.
 * Constructs a StandardGlyphVector from a generic glyph vector.
 * Do not call this from new contexts without considering the comment
 * about "userGlyphs".
 */
private StandardGlyphVector(GlyphVector gv, FontRenderContext frc) {
    this.font = gv.getFont();
    this.frc = frc;
    initFontData();

    int nGlyphs = gv.getNumGlyphs();
    this.userGlyphs = gv.getGlyphCodes(0, nGlyphs, null);
    if (gv instanceof StandardGlyphVector) {
        /* userGlyphs will be OK because this is a private constructor
         * and the returned instance is used only for rendering.
         * It's not constructable by user code, nor returned to the
         * application. So we know "userGlyphs" are valid as having
         * been either already validated or are the result of layout.
         */
        this.glyphs = userGlyphs;
    } else {
        this.glyphs = getValidatedGlyphs(this.userGlyphs);
    }
    this.flags = gv.getLayoutFlags() & FLAG_MASK;

    if ((flags & FLAG_HAS_POSITION_ADJUSTMENTS) != 0) {
        this.positions = gv.getGlyphPositions(0, nGlyphs + 1, null);
    }

    if ((flags & FLAG_COMPLEX_GLYPHS) != 0) {
        this.charIndices = gv.getGlyphCharIndices(0, nGlyphs, null);
    }

    if ((flags & FLAG_HAS_TRANSFORMS) != 0) {
        AffineTransform[] txs = new AffineTransform[nGlyphs]; // worst case
        for (int i = 0; i < nGlyphs; ++i) {
            txs[i] = gv.getGlyphTransform(i); // gv doesn't have getGlyphsTransforms
        }

        setGlyphTransforms(txs);
    }
}
 

import java.awt.font.GlyphVector; //导入方法依赖的package包/类
private void textOut(String str,
                     Font font, PhysicalFont font2D,
                     FontRenderContext frc,
                     float deviceSize, int rotation, float awScale,
                     AffineTransform deviceTransform,
                     double scaleFactorX,
                     float userx, float usery,
                     float devx, float devy, float targetW) {

    String family = font2D.getFamilyName(null);
    int style = font.getStyle() | font2D.getStyle();
    WPrinterJob wPrinterJob = (WPrinterJob)getPrinterJob();
    boolean setFont = wPrinterJob.setFont(family, deviceSize, style,
                                          rotation, awScale);
    if (!setFont) {
        super.drawString(str, userx, usery, font, frc, targetW);
        return;
    }

    float[] glyphPos = null;
    if (!okGDIMetrics(str, font, frc, scaleFactorX)) {
        /* If there is a 1:1 char->glyph mapping then char positions
         * are the same as glyph positions and we can tell GDI
         * where to place the glyphs.
         * On drawing we remove control chars so these need to be
         * removed now so the string and positions are the same length.
         * For other cases we need to pass glyph codes to GDI.
         */
        str = wPrinterJob.removeControlChars(str);
        char[] chars = str.toCharArray();
        int len = chars.length;
        GlyphVector gv = null;
        if (!FontUtilities.isComplexText(chars, 0, len)) {
            gv = font.createGlyphVector(frc, str);
        }
        if (gv == null) {
            super.drawString(str, userx, usery, font, frc, targetW);
            return;
        }
        glyphPos = gv.getGlyphPositions(0, len, null);
        Point2D gvAdvPt = gv.getGlyphPosition(gv.getNumGlyphs());

        /* GDI advances must not include device space rotation.
         * See earlier comment in printGlyphVector() for details.
         */
        AffineTransform advanceTransform =
          new AffineTransform(deviceTransform);
        advanceTransform.rotate(rotation*Math.PI/1800.0);
        float[] glyphAdvPos = new float[glyphPos.length];

        advanceTransform.transform(glyphPos, 0,         //source
                                   glyphAdvPos, 0,      //destination
                                   glyphPos.length/2);  //num points
        glyphPos = glyphAdvPos;
    }
    wPrinterJob.textOut(str, devx, devy, glyphPos);
}
 

import java.awt.font.GlyphVector; //导入方法依赖的package包/类
private void textOut(String str,
                     Font font, PhysicalFont font2D,
                     FontRenderContext frc,
                     float deviceSize, int rotation, float awScale,
                     double scaleFactorX, double scaleFactorY,
                     float userx, float usery,
                     float devx, float devy, float targetW) {

    String family = font2D.getFamilyName(null);
    int style = font.getStyle() | font2D.getStyle();
    WPrinterJob wPrinterJob = (WPrinterJob)getPrinterJob();
    boolean setFont = wPrinterJob.setFont(family, deviceSize, style,
                                          rotation, awScale);
    if (!setFont) {
        super.drawString(str, userx, usery, font, frc, targetW);
        return;
    }

    float[] glyphPos = null;
    if (!okGDIMetrics(str, font, frc, scaleFactorX)) {
        /* If there is a 1:1 char->glyph mapping then char positions
         * are the same as glyph positions and we can tell GDI
         * where to place the glyphs.
         * On drawing we remove control chars so these need to be
         * removed now so the string and positions are the same length.
         * For other cases we need to pass glyph codes to GDI.
         */
        str = wPrinterJob.removeControlChars(str);
        char[] chars = str.toCharArray();
        int len = chars.length;
        GlyphVector gv = null;
        if (!FontUtilities.isComplexText(chars, 0, len)) {
            gv = font.createGlyphVector(frc, str);
        }
        if (gv == null) {
            super.drawString(str, userx, usery, font, frc, targetW);
            return;
        }
        glyphPos = gv.getGlyphPositions(0, len, null);
        Point2D gvAdvPt = gv.getGlyphPosition(gv.getNumGlyphs());

        /* GDI advances must not include device space rotation.
         * See earlier comment in printGlyphVector() for details.
         */
        AffineTransform advanceTransform =
           AffineTransform.getScaleInstance(scaleFactorX, scaleFactorY);
        float[] glyphAdvPos = new float[glyphPos.length];

        advanceTransform.transform(glyphPos, 0,         //source
                                   glyphAdvPos, 0,      //destination
                                   glyphPos.length/2);  //num points
        glyphPos = glyphAdvPos;
    }
    wPrinterJob.textOut(str, devx, devy, glyphPos);
}