package jira;

import com.sun.javafx.font.CompositeFontResource;
import com.sun.javafx.font.CompositeGlyphMapper;
import com.sun.javafx.font.FontResource;
import com.sun.javafx.font.FontStrike;
import com.sun.javafx.font.Glyph;
import com.sun.javafx.font.PGFont;
import com.sun.javafx.geom.transform.BaseTransform;
import com.sun.javafx.scene.text.GlyphList;
import com.sun.javafx.scene.text.TextLayout;
import com.sun.javafx.scene.text.TextLayoutFactory;
import com.sun.javafx.tk.Toolkit;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.FontSmoothingType;
import javafx.scene.text.Text;
import javafx.stage.Stage;

/**
 *
 * @author rql1986
 */
public class RT31587b extends Application {

    private void debugText(Text t, boolean listFonts) {
        TextLayoutFactory factory = Toolkit.getToolkit().getTextLayoutFactory();
        TextLayout layout = factory.createLayout();
        PGFont prismFont = (PGFont)t.getFont().impl_getNativeFont();
        layout.setContent(t.getText(), prismFont);

        CompositeFontResource compositeFont = (CompositeFontResource)prismFont.getFontResource();
        if (listFonts) {
            int count = compositeFont.getNumSlots();
            for (int i = 0; i < count; i++) {
                com.sun.javafx.font.FontResource fr = compositeFont.getSlotResource(i);
                System.out.println("Composite slot " + i + " name " + fr.getFullName() + " file " + fr.getFileName());
            }
        }
        boolean lcd = t.getFontSmoothingType() == FontSmoothingType.LCD;
        System.out.println("***** Font " + t.getFont() + (lcd ? "LCD" : "GRAY"));
        FontStrike strike = prismFont.getStrike(BaseTransform.IDENTITY_TRANSFORM, lcd ? FontResource.AA_LCD : FontResource.AA_GREYSCALE);
        GlyphList[] runs = layout.getRuns();
        for (int i = 0; i < runs.length; i++) {
            GlyphList run = runs[i];
            System.out.println("run["+i+"]="+run);
            int glyphCount = run.getGlyphCount();
            for (int j = 0; j < glyphCount; j++) {
                int glyphCode = run.getGlyphCode(j);
                int slot = (glyphCode & CompositeGlyphMapper.SLOTMASK) >> 24;
                int glyphIndex = glyphCode & CompositeGlyphMapper.GLYPHMASK;
                System.out.println("\tglyph["+j+"]="+ glyphIndex + " slot=" + slot + " pos=" + run.getPosX(j*2));
                Glyph glyph = strike.getGlyph(glyphCode);
                System.out.println("\t\tbbox=" + glyph.getBBox());
                System.out.println("\t\twidth=" + glyph.getWidth());
                System.out.println("\t\theight=" + glyph.getHeight());
                System.out.println("\t\tpixelData.length=" + glyph.getPixelData().length);
                System.out.println("\t\tshape.bounds=" + glyph.getShape().getBounds());
            }
        }
    }

    @Override
    public void start(Stage primaryStage) {
        String ch = "\u4E2D\u6587\u6807\u7B7E";

        Text text1 = new Text(ch);
        text1.setFont(Font.font(12));
        text1.setFontSmoothingType(FontSmoothingType.LCD);

        Text text2 = new Text(ch);
        text2.setFont(Font.font(12));
        text2.setFontSmoothingType(FontSmoothingType.GRAY);

        Text text3 = new Text(ch);
        text3.setFont(Font.font(22));
        text3.setFontSmoothingType(FontSmoothingType.LCD);

        Text text4 = new Text(ch);
        text4.setFont(Font.font(22));
        text4.setFontSmoothingType(FontSmoothingType.GRAY);

        Text text5 = new Text(ch);
        text5.setFont(Font.font(12));
        text5.setFill(null);
        text5.setStroke(Color.RED);

        debugText(text1, true);
        debugText(text2, false);
        debugText(text3, false);
        debugText(text4, false);

        VBox vbox = new VBox(text1, text2, text3, text4, text5);
        Scene scene = new Scene(vbox, 300, 250);
        primaryStage.setTitle("Hello World!");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        System.setProperty("prism.debugfonts", "true");
        launch(args);
    }
}