Java Font.isTransformed方法代码示例

import java.awt.Font; //导入方法依赖的package包/类
public FontStrike getStrike(Font font, FontRenderContext frc) {

        AffineTransform at = frc.getTransform();
        double ptSize = font.getSize2D();
        at.scale(ptSize, ptSize);
        if (font.isTransformed()) {
            at.concatenate(font.getTransform());
            if (at.getTranslateX() != 0 || at.getTranslateY() != 0) {
                at.setTransform(at.getScaleX(),
                                at.getShearY(),
                                at.getShearX(),
                                at.getScaleY(),
                                0.0, 0.0);
            }
        }
        int aa = FontStrikeDesc.getAAHintIntVal(this, font, frc);
        int fm = FontStrikeDesc.getFMHintIntVal(frc.getFractionalMetricsHint());
        FontStrikeDesc desc = new FontStrikeDesc(frc.getTransform(),
                                                 at, font.getStyle(),
                                                 aa, fm);
        return getStrike(desc, false);
    }
 

import java.awt.Font; //导入方法依赖的package包/类
public void setFont(Font font) {
    /* replacing the reference equality test font != this.font with
     * !font.equals(this.font) did not yield any measurable difference
     * in testing, but there may be yet to be identified cases where it
     * is beneficial.
     */
    if (font != null && font!=this.font/*!font.equals(this.font)*/) {
        /* In the GASP AA case the textpipe depends on the glyph size
         * as determined by graphics and font transforms as well as the
         * font size, and information in the font. But we may invalidate
         * the pipe only to find that it made no difference.
         * Deferring pipe invalidation to checkFontInfo won't work because
         * when called we may already be rendering to the wrong pipe.
         * So, if the font is transformed, or the graphics has more than
         * a simple scale, we'll take that as enough of a hint to
         * revalidate everything. But if they aren't we will
         * use the font's point size to query the gasp table and see if
         * what it says matches what's currently being used, in which
         * case there's no need to invalidate the textpipe.
         * This should be sufficient for all typical uses cases.
         */
        if (textAntialiasHint == SunHints.INTVAL_TEXT_ANTIALIAS_GASP &&
            textpipe != invalidpipe &&
            (transformState > TRANSFORM_ANY_TRANSLATE ||
             font.isTransformed() ||
             fontInfo == null || // Precaution, if true shouldn't get here
             (fontInfo.aaHint == SunHints.INTVAL_TEXT_ANTIALIAS_ON) !=
                 FontUtilities.getFont2D(font).
                     useAAForPtSize(font.getSize()))) {
            textpipe = invalidpipe;
        }
        this.font = font;
        this.fontMetrics = null;
        this.validFontInfo = false;
    }
}
 

import java.awt.Font; //导入方法依赖的package包/类
public StandardGlyphVector(Font font, FontRenderContext frc, int[] glyphs, float[] positions,
                           int[] indices, int flags) {
    initGlyphVector(font, frc, glyphs, positions, indices, flags);

    // this code should go into layout
    float track = getTracking(font);
    if (track != 0) {
        track *= font.getSize2D();
        Point2D.Float trackPt = new Point2D.Float(track, 0); // advance delta
        if (font.isTransformed()) {
            AffineTransform at = font.getTransform();
            at.deltaTransform(trackPt, trackPt);
        }

        // how do we know its a base glyph
        // for now, it is if the natural advance of the glyph is non-zero
        Font2D f2d = FontUtilities.getFont2D(font);
        FontStrike strike = f2d.getStrike(font, frc);

        float[] deltas = { trackPt.x, trackPt.y };
        for (int j = 0; j < deltas.length; ++j) {
            float inc = deltas[j];
            if (inc != 0) {
                float delta = 0;
                for (int i = j, n = 0; n < glyphs.length; i += 2) {
                    if (strike.getGlyphAdvance(glyphs[n++]) != 0) { // might be an inadequate test
                        positions[i] += delta;
                        delta += inc;
                    }
                }
                positions[positions.length-2+j] += delta;
            }
        }
    }
}
 

import java.awt.Font; //导入方法依赖的package包/类
public static int getAAHintIntVal(Font2D font2D, Font font,
                                  FontRenderContext frc) {
    Object aa = frc.getAntiAliasingHint();
    if (aa == VALUE_TEXT_ANTIALIAS_OFF ||
        aa == VALUE_TEXT_ANTIALIAS_DEFAULT) {
        return INTVAL_TEXT_ANTIALIAS_OFF;
    } else if (aa == VALUE_TEXT_ANTIALIAS_ON) {
        return INTVAL_TEXT_ANTIALIAS_ON;
    } else if (aa == VALUE_TEXT_ANTIALIAS_GASP) {
        /* FRC.isIdentity() would have been useful */
        int ptSize;
        AffineTransform tx = frc.getTransform();
        if (tx.isIdentity() && !font.isTransformed()) {
            ptSize = font.getSize();
        } else {
            /* one or both transforms is not identity */
            float size = font.getSize2D();
            if (tx.isIdentity()) {
                tx = font.getTransform();
                tx.scale(size, size);
            } else {
                tx.scale(size, size);
                if (font.isTransformed()) {
                    tx.concatenate(font.getTransform());
                }
            }
            double shearx = tx.getShearX();
            double scaley = tx.getScaleY();
            if (shearx != 0) {
                scaley = Math.sqrt(shearx * shearx + scaley * scaley);
            }
            ptSize = (int)(Math.abs(scaley)+0.5);
        }
        if (font2D.useAAForPtSize(ptSize)) {
            return INTVAL_TEXT_ANTIALIAS_ON;
        } else {
            return INTVAL_TEXT_ANTIALIAS_OFF;
        }
    } else if (aa == VALUE_TEXT_ANTIALIAS_LCD_HRGB ||
               aa == VALUE_TEXT_ANTIALIAS_LCD_HBGR) {
        return INTVAL_TEXT_ANTIALIAS_LCD_HRGB;
    } else if (aa == VALUE_TEXT_ANTIALIAS_LCD_VRGB ||
               aa == VALUE_TEXT_ANTIALIAS_LCD_VBGR) {
        return INTVAL_TEXT_ANTIALIAS_LCD_VRGB;
    } else {
        return INTVAL_TEXT_ANTIALIAS_OFF;
    }
}