com.sun.javafx.webkit.prism.WCFontImpl Maven / Gradle / Ivy
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* accompanied this code).
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package com.sun.javafx.webkit.prism;
import com.sun.javafx.font.CharToGlyphMapper;
import com.sun.javafx.font.FontFactory;
import com.sun.javafx.font.FontResource;
import com.sun.javafx.font.FontStrike;
import com.sun.javafx.font.PGFont;
import com.sun.javafx.geom.transform.BaseTransform;
import com.sun.javafx.logging.PlatformLogger.Level;
import com.sun.javafx.logging.PlatformLogger;
import com.sun.javafx.scene.text.TextLayout;
import com.sun.prism.GraphicsPipeline;
import com.sun.webkit.graphics.WCFont;
import com.sun.webkit.graphics.WCTextRun;
import java.util.Arrays;
import java.util.HashMap;
final class WCFontImpl extends WCFont {
private final static PlatformLogger log =
PlatformLogger.getLogger(WCFontImpl.class.getName());
private static final HashMap FONT_MAP = new HashMap<>();
static WCFont getFont(String name, boolean bold, boolean italic, float size) {
FontFactory factory = GraphicsPipeline.getPipeline().getFontFactory();
synchronized (FONT_MAP) {
if (FONT_MAP.isEmpty()) {
FONT_MAP.put("serif", "Serif");
FONT_MAP.put("dialog", "SansSerif");
FONT_MAP.put("helvetica", "SansSerif");
FONT_MAP.put("sansserif", "SansSerif");
FONT_MAP.put("sans-serif", "SansSerif");
FONT_MAP.put("monospace", "Monospaced");
FONT_MAP.put("monospaced", "Monospaced");
FONT_MAP.put("times", "Times New Roman");
FONT_MAP.put("courier", "Courier New");
for (String family : factory.getFontFamilyNames()) {
FONT_MAP.put(family.toLowerCase(), family);
}
}
}
String family = FONT_MAP.get(name.toLowerCase());
if (log.isLoggable(Level.FINE)) {
StringBuilder sb = new StringBuilder("WCFontImpl.get(");
sb.append(name).append(", ").append(size);
if (bold) {
sb.append(", bold");
}
if (italic) {
sb.append(", italic");
}
log.fine(sb.append(") = ").append(family).toString());
}
return (family != null)
? new WCFontImpl(factory.createFont(family, bold, italic, size))
: null;
}
private final PGFont font;
WCFontImpl(PGFont font) {
this.font = font;
}
@Override public WCFont deriveFont(float size) {
FontFactory factory = GraphicsPipeline.getPipeline().getFontFactory();
return new WCFontImpl(
factory.deriveFont(font,
font.getFontResource().isBold(),
font.getFontResource().isItalic(),
size));
}
private FontStrike strike;
private FontStrike getFontStrike()
{
if (strike == null) {
strike = font.getStrike(BaseTransform.IDENTITY_TRANSFORM, FontResource.AA_LCD);
}
return strike;
}
@Override public double getGlyphWidth(int glyph) {
return getFontStrike().getFontResource().getAdvance(glyph, font.getSize());
}
@Override public float[] getGlyphBoundingBox(int glyph) {
float[] bb = new float[4];
bb = getFontStrike().getFontResource().getGlyphBoundingBox(glyph, font.getSize(), bb);
return new float[]{bb[0], -bb[3], bb[2], bb[3] - bb[1]};
}
@Override public float getXHeight() {
return getFontStrike().getMetrics().getXHeight();
}
private static boolean needsTextLayout(final int glyphs[]) {
for (int g : glyphs) {
if (g == 0) {
return true;
}
}
return false;
}
@Override public int[] getGlyphCodes(char[] chars) {
int[] glyphs = new int[chars.length];
CharToGlyphMapper mapper = getFontStrike().getFontResource().getGlyphMapper();
mapper.charsToGlyphs(chars.length, chars, glyphs);
if (needsTextLayout(glyphs)) {
// Call charsToGlyphs once again after doing layout if any of the glyph index is zero
TextUtilities.createLayout(new String(chars), getPlatformFont()).getRuns();
mapper.charsToGlyphs(chars.length, chars, glyphs);
}
return glyphs;
}
@Override
public float getAscent() {
// REMIND: This method needs to require a render context.
float res = - getFontStrike().getMetrics().getAscent();
if (log.isLoggable(Level.FINER)) {
log.finer("getAscent({0}, {1}) = {2}",
new Object[] {font.getName(), font.getSize(),
res});
}
return res;
}
@Override
public float getDescent() {
// REMIND: This method needs to require a render context.
float res = getFontStrike().getMetrics().getDescent();
if (log.isLoggable(Level.FINER)) {
log.finer("getDescent({0}, {1}) = {2}",
new Object[] {font.getName(), font.getSize(),
res});
}
return res;
}
@Override
public float getLineSpacing() {
// REMIND: This method needs to require a render context.
float res = getFontStrike().getMetrics().getLineHeight();
if (log.isLoggable(Level.FINER)) {
log.finer("getLineSpacing({0}, {1}) = {2}",
new Object[] {font.getName(), font.getSize(),
res});
}
return res;
}
@Override
public float getLineGap() {
// REMIND: This method needs to require a render context.
float res = getFontStrike().getMetrics().getLineGap();
if (log.isLoggable(Level.FINER)) {
log.finer("getLineGap({0}, {1}) = {2}",
new Object[] {font.getName(), font.getSize(),
res });
}
return res;
}
@Override
public boolean hasUniformLineMetrics() {
return false;
}
@Override
public Object getPlatformFont() {
return font;
}
@Override public float getCapHeight() {
return getFontStrike().getMetrics().getCapHeight();
}
@Override
public WCTextRun[] getTextRuns(final String str) {
if (log.isLoggable(Level.FINE)) {
log.fine(String.format("str='%s' length=%d", str, str.length()));
}
final TextLayout layout = TextUtilities.createLayout(str, getPlatformFont());
return Arrays.stream(layout.getRuns())
.map(WCTextRunImpl::new)
.toArray(WCTextRunImpl[]::new);
}
}