Examples with FontMetrics java.awt.FontMetrics used on opensource projects

Example 96 with FontMetrics

use of java.awt.FontMetrics in project jdk8u_jdk by JetBrains.

the class Utilities method drawTabbedText.

// In addition to the previous method it can extend spaces for
// justification.
//
// all params are the same as in the preious method except the last
// one:
// @param justificationData justificationData for the row.
// if null not justification is needed
static final int drawTabbedText(View view, Segment s, int x, int y, Graphics g, TabExpander e, int startOffset, int[] justificationData) {
    JComponent component = getJComponent(view);
    FontMetrics metrics = SwingUtilities2.getFontMetrics(component, g);
    int nextX = x;
    char[] txt = s.array;
    int txtOffset = s.offset;
    int flushLen = 0;
    int flushIndex = s.offset;
    int spaceAddon = 0;
    int spaceAddonLeftoverEnd = -1;
    int startJustifiableContent = 0;
    int endJustifiableContent = 0;
    if (justificationData != null) {
        int offset = -startOffset + txtOffset;
        View parent = null;
        if (view != null && (parent = view.getParent()) != null) {
            offset += parent.getStartOffset();
        }
        spaceAddon = justificationData[Row.SPACE_ADDON];
        spaceAddonLeftoverEnd = justificationData[Row.SPACE_ADDON_LEFTOVER_END] + offset;
        startJustifiableContent = justificationData[Row.START_JUSTIFIABLE] + offset;
        endJustifiableContent = justificationData[Row.END_JUSTIFIABLE] + offset;
    }
    int n = s.offset + s.count;
    for (int i = txtOffset; i < n; i++) {
        if (txt[i] == '\t' || ((spaceAddon != 0 || i <= spaceAddonLeftoverEnd) && (txt[i] == ' ') && startJustifiableContent <= i && i <= endJustifiableContent)) {
            if (flushLen > 0) {
                nextX = SwingUtilities2.drawChars(component, g, txt, flushIndex, flushLen, x, y);
                flushLen = 0;
            }
            flushIndex = i + 1;
            if (txt[i] == '\t') {
                if (e != null) {
                    nextX = (int) e.nextTabStop((float) nextX, startOffset + i - txtOffset);
                } else {
                    nextX += metrics.charWidth(' ');
                }
            } else if (txt[i] == ' ') {
                nextX += metrics.charWidth(' ') + spaceAddon;
                if (i <= spaceAddonLeftoverEnd) {
                    nextX++;
                }
            }
            x = nextX;
        } else if ((txt[i] == '\n') || (txt[i] == '\r')) {
            if (flushLen > 0) {
                nextX = SwingUtilities2.drawChars(component, g, txt, flushIndex, flushLen, x, y);
                flushLen = 0;
            }
            flushIndex = i + 1;
            x = nextX;
        } else {
            flushLen += 1;
        }
    }
    if (flushLen > 0) {
        nextX = SwingUtilities2.drawChars(component, g, txt, flushIndex, flushLen, x, y);
    }
    return nextX;
}

Example 97 with FontMetrics

use of java.awt.FontMetrics in project jdk8u_jdk by JetBrains.

the class Blink method paint.

@Override
public void paint(Graphics g) {
    int fontSize = g.getFont().getSize();
    int x = 0, y = fontSize, space;
    int red = (int) (50 * Math.random());
    int green = (int) (50 * Math.random());
    int blue = (int) (256 * Math.random());
    Dimension d = getSize();
    g.setColor(Color.black);
    FontMetrics fm = g.getFontMetrics();
    space = fm.stringWidth(" ");
    for (StringTokenizer t = new StringTokenizer(labelString); t.hasMoreTokens(); ) {
        String word = t.nextToken();
        int w = fm.stringWidth(word) + space;
        if (x + w > d.width) {
            x = 0;
            //move word to next line if it doesn't fit
            y += fontSize;
        }
        if (Math.random() < 0.5) {
            g.setColor(new java.awt.Color((red + y * 30) % 256, (green + x / 3) % 256, blue));
        } else {
            g.setColor(getBackground());
        }
        g.drawString(word, x, y);
        //shift to the right to draw the next word
        x += w;
    }
}

Example 98 with FontMetrics

use of java.awt.FontMetrics in project jdk8u_jdk by JetBrains.

the class TextComponentPrintable method createPrintShellOnEDT.

private JTextComponent createPrintShellOnEDT(final JTextComponent textComponent) {
    assert SwingUtilities.isEventDispatchThread();
    JTextComponent ret = null;
    if (textComponent instanceof JPasswordField) {
        ret = new JPasswordField() {

            {
                setEchoChar(((JPasswordField) textComponent).getEchoChar());
                setHorizontalAlignment(((JTextField) textComponent).getHorizontalAlignment());
            }

            @Override
            public FontMetrics getFontMetrics(Font font) {
                return (frc.get() == null) ? super.getFontMetrics(font) : FontDesignMetrics.getMetrics(font, frc.get());
            }
        };
    } else if (textComponent instanceof JTextField) {
        ret = new JTextField() {

            {
                setHorizontalAlignment(((JTextField) textComponent).getHorizontalAlignment());
            }

            @Override
            public FontMetrics getFontMetrics(Font font) {
                return (frc.get() == null) ? super.getFontMetrics(font) : FontDesignMetrics.getMetrics(font, frc.get());
            }
        };
    } else if (textComponent instanceof JTextArea) {
        ret = new JTextArea() {

            {
                JTextArea textArea = (JTextArea) textComponent;
                setLineWrap(textArea.getLineWrap());
                setWrapStyleWord(textArea.getWrapStyleWord());
                setTabSize(textArea.getTabSize());
            }

            @Override
            public FontMetrics getFontMetrics(Font font) {
                return (frc.get() == null) ? super.getFontMetrics(font) : FontDesignMetrics.getMetrics(font, frc.get());
            }
        };
    } else if (textComponent instanceof JTextPane) {
        ret = new JTextPane() {

            @Override
            public FontMetrics getFontMetrics(Font font) {
                return (frc.get() == null) ? super.getFontMetrics(font) : FontDesignMetrics.getMetrics(font, frc.get());
            }

            @Override
            public EditorKit getEditorKit() {
                if (getDocument() == textComponent.getDocument()) {
                    return ((JTextPane) textComponent).getEditorKit();
                } else {
                    return super.getEditorKit();
                }
            }
        };
    } else if (textComponent instanceof JEditorPane) {
        ret = new JEditorPane() {

            @Override
            public FontMetrics getFontMetrics(Font font) {
                return (frc.get() == null) ? super.getFontMetrics(font) : FontDesignMetrics.getMetrics(font, frc.get());
            }

            @Override
            public EditorKit getEditorKit() {
                if (getDocument() == textComponent.getDocument()) {
                    return ((JEditorPane) textComponent).getEditorKit();
                } else {
                    return super.getEditorKit();
                }
            }
        };
    }
    //want to occupy the whole width and height by text
    ret.setBorder(null);
    //set properties from the component to print
    ret.setOpaque(textComponent.isOpaque());
    ret.setEditable(textComponent.isEditable());
    ret.setEnabled(textComponent.isEnabled());
    ret.setFont(textComponent.getFont());
    ret.setBackground(textComponent.getBackground());
    ret.setForeground(textComponent.getForeground());
    ret.setComponentOrientation(textComponent.getComponentOrientation());
    if (ret instanceof JEditorPane) {
        ret.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, textComponent.getClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES));
        ret.putClientProperty(JEditorPane.W3C_LENGTH_UNITS, textComponent.getClientProperty(JEditorPane.W3C_LENGTH_UNITS));
        ret.putClientProperty("charset", textComponent.getClientProperty("charset"));
    }
    ret.setDocument(textComponent.getDocument());
    return ret;
}

Example 99 with FontMetrics

use of java.awt.FontMetrics in project jdk8u_jdk by JetBrains.

the class CardinalTextField method paint.

@Override
public void paint(Graphics g) {
    int w = getSize().width;
    int h = getSize().height;
    if (img == null) {
        super.paint(g);
        g.setColor(Color.black);
        FontMetrics fm = g.getFontMetrics();
        int x = (w - fm.stringWidth(calcString)) / 2;
        int y = h / 2;
        g.drawString(calcString, x, y);
    } else {
        g.drawImage(img, 0, 0, w, h, this);
    }
}

Example 100 with FontMetrics

use of java.awt.FontMetrics in project jdk8u_jdk by JetBrains.

the class KerningLeak method leak.

private static void leak() {
    Map<TextAttribute, Object> textAttributes = new HashMap<>();
    textAttributes.put(TextAttribute.FAMILY, "Sans Serif");
    textAttributes.put(TextAttribute.SIZE, 12);
    textAttributes.put(TextAttribute.KERNING, TextAttribute.KERNING_ON);
    Font font = Font.getFont(textAttributes);
    JLabel label = new JLabel();
    int dummy = 0;
    for (int i = 0; i < 500; i++) {
        if (i % 10 == 0)
            System.out.println("Starting iter " + (i + 1));
        for (int j = 0; j < 1000; j++) {
            FontMetrics fm = label.getFontMetrics(font);
            dummy += SwingUtilities.computeStringWidth(fm, Integer.toString(j));
        }
    }
    System.out.println("done " + dummy);
}