Java Code Examples for javax.swing.JComponent#getFont()

private static void testStringWidth() {

        String str = "12345678910\u036F";
        JComponent comp = createComponent(str);
        Font font = comp.getFont();
        FontMetrics fontMetrics = comp.getFontMetrics(font);
        float stringWidth = BasicGraphicsUtils.getStringWidth(comp, fontMetrics, str);

        if (stringWidth == fontMetrics.stringWidth(str)) {
            throw new RuntimeException("Numeric shaper is not used!");
        }

        if (stringWidth != getLayoutWidth(str, font, NUMERIC_SHAPER)) {
            throw new RuntimeException("Wrong text width!");
        }
    }
 

public Dimension getPreferredSize(JComponent c) {
  Font font = c.getFont();
  String tipText = ((JToolTip) c).getTipText();
  JToolTip mtt = (JToolTip) c;
  FontMetrics fontMetrics = mtt.getFontMetrics(font);
  int fontHeight = fontMetrics.getHeight();

  if (tipText == null)
    return new Dimension(0, 0);

  String lines[] = tipText.split("\n");
  int num_lines = lines.length;

  int width, height, onewidth;
  height = num_lines * fontHeight;
  width = 0;
  for (int i = 0; i < num_lines; i++) {
    onewidth = fontMetrics.stringWidth(lines[i]);
    width = Math.max(width, onewidth);
  }
  return new Dimension(width + inset * 2, height + inset * 2);
}
 

public void paint(Graphics g, JComponent c) {
  Font font = c.getFont();
  JToolTip mtt = (JToolTip) c;
  FontMetrics fontMetrics = mtt.getFontMetrics(font);
  Dimension dimension = c.getSize();
  int fontHeight = fontMetrics.getHeight();
  int fontAscent = fontMetrics.getAscent();
  String tipText = ((JToolTip) c).getTipText();
  if (tipText == null)
    return;
  String lines[] = tipText.split("\n");
  int num_lines = lines.length;
  int height;
  int i;

  g.setColor(c.getBackground());
  g.fillRect(0, 0, dimension.width, dimension.height);
  g.setColor(c.getForeground());
  for (i = 0, height = 2 + fontAscent; i < num_lines; i++, height += fontHeight) {
    g.drawString(lines[i], inset, height);
  }
}
 

public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int col) {
  // value is column name
  String name = (value==null) ? "" : value.toString(); //$NON-NLS-1$
  textLine.setText(name);
  if (OSPRuntime.isMac()) {
  	name = TeXParser.removeSubscripting(name);
  }
  Component c = renderer.getTableCellRendererComponent(table, name, isSelected, hasFocus, row, col);
  if (!(c instanceof JComponent)) {
    return c;
  }
  JComponent comp = (JComponent) c;
  int sortCol = decorator.getSortedColumn();
  Font font = comp.getFont();
  if (OSPRuntime.isMac()) {
  	// textline doesn't work on OSX
    comp.setFont((sortCol!=convertColumnIndexToModel(col))? 
    		font.deriveFont(Font.PLAIN) : 
    		font.deriveFont(Font.BOLD));
    if (comp instanceof JLabel) {
    	((JLabel)comp).setHorizontalAlignment(SwingConstants.CENTER);
    }
    return comp;
  }
  java.awt.Dimension dim = comp.getPreferredSize();
  dim.height += 1;
  panel.setPreferredSize(dim);
  javax.swing.border.Border border = comp.getBorder();
  if (border instanceof javax.swing.border.EmptyBorder) {
    border = BorderFactory.createLineBorder(Color.LIGHT_GRAY);
  }
  panel.setBorder(border);
  // set font: bold if sorted column
  textLine.setFont((sortCol!=convertColumnIndexToModel(col)) ? font : font.deriveFont(Font.BOLD));
  textLine.setColor(comp.getForeground());
  textLine.setBackground(comp.getBackground());
  panel.setBackground(comp.getBackground());
  return panel;
}
 

/** Apply this coloring to component colors/font.
* The underline and strikeThrough line colors have no effect here.
*/
public void apply(JComponent c) {
    // Possibly change font
    if (font != null) {
        if (fontMode == FONT_MODE_DEFAULT) {
            c.setFont(font);

        } else { // non-default font-mode
            Font origFont = c.getFont();
            if (origFont != null) {
                synchronized (cacheLock) {
                    Font f = (Font)fontAndForeColorCache.get(origFont);
                    if (f == null) {
                        f = modifyFont(origFont);
                        fontAndForeColorCache.put(origFont, f);
                    }
                    c.setFont(f);
                }
            }
        }
    }

    // Possibly change fore-color
    if (foreColor != null) {
        if (!hasAlpha(foreColor)) {
            c.setForeground(foreColor);

        } else { // non-default fore color-mode
            Color origForeColor = c.getForeground();
            if (origForeColor != null) {
                synchronized (cacheLock) {
                    Color fc = (Color)fontAndForeColorCache.get(origForeColor);
                    if (fc == null) {
                        fc = modifyForeColor(origForeColor);
                        fontAndForeColorCache.put(origForeColor, fc);
                    }
                    c.setForeground(fc);
                }
            }
        }
    }

    // Possibly change back-color
    if (backColor != null) {
        if (!hasAlpha(backColor)) {
            c.setBackground(backColor);

        } else { // non-default back color-mode
            Color origBackColor = c.getBackground();
            if (origBackColor != null) {
                synchronized (cacheLock) {
                    Color bc = (Color)backColorCache.get(origBackColor);
                    if (bc == null) {
                        bc = modifyBackColor(origBackColor);
                        backColorCache.put(origBackColor, bc);
                    }
                    c.setBackground(bc);
                }
            }
        }
    }
}
 

public void paint(Graphics g, JComponent c) {
  AbstractButton b = (AbstractButton)c;
  ButtonModel model = b.getModel();

  FontMetrics fm = g.getFontMetrics();

  Insets i = c.getInsets();

  viewRect.x = i.left;
  viewRect.y = i.top;
  viewRect.width = b.getWidth() - (i.right + viewRect.x);
  viewRect.height = b.getHeight() - (i.bottom + viewRect.y);

  textRect.x = textRect.y = textRect.width = textRect.height = 0;
  iconRect.x = iconRect.y = iconRect.width = iconRect.height = 0;

  Font f = c.getFont();
  g.setFont(f);

  // layout the text and icon
  String text =
    SwingUtilities.layoutCompoundLabel(
      c,
      fm,
      b.getText(),
      b.getIcon(),
      b.getVerticalAlignment(),
      b.getHorizontalAlignment(),
      b.getVerticalTextPosition(),
      b.getHorizontalTextPosition(),
      viewRect,
      iconRect,
      textRect,
      b.getText() == null ? 0 : b.getIconTextGap());

  clearTextShiftOffset();

  // perform UI specific press action, e.g. Windows L&F shifts text
  if (model.isArmed() && model.isPressed()) {
    paintButtonPressed(g, b);
  }

  // Paint the Icon
  if (b.getIcon() != null) {
    paintIcon(g, c, iconRect);
  }

  Composite oldComposite = ((Graphics2D)g).getComposite();

  if (model.isRollover()) {
    ((Graphics2D)g).setComposite(
      AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f));
  }

  if (text != null && !text.equals("")) {
    View v = (View)c.getClientProperty(BasicHTML.propertyKey);
    if (v != null) {
      textRect.x += getTextShiftOffset();
      textRect.y += getTextShiftOffset();
      v.paint(g, textRect);
      textRect.x -= getTextShiftOffset();
      textRect.y -= getTextShiftOffset();
    } else {
      paintText(g, b, textRect, text);
    }
  }

  if (b.isFocusPainted() && b.hasFocus()) {
    // paint UI specific focus
    paintFocus(g, b, viewRect, textRect, iconRect);
  }

  ((Graphics2D)g).setComposite(oldComposite);
}
 

@Override
public void paint(Graphics g, JComponent c) {
	AbstractButton b = (AbstractButton) c;

	Dimension size = b.getSize();
	FontMetrics fm = g.getFontMetrics();

	Insets i = c.getInsets();

	Rectangle viewRect = new Rectangle(size);

	viewRect.x += i.left;
	viewRect.y += i.top;
	viewRect.width -= i.right + viewRect.x;
	viewRect.height -= i.bottom + viewRect.y;

	Rectangle iconRect = new Rectangle();
	Rectangle textRect = new Rectangle();

	Font f = c.getFont();
	g.setFont(f);

	String text = SwingUtilities.layoutCompoundLabel(c, fm, b.getText(), b.getIcon(), b.getVerticalAlignment(),
			b.getHorizontalAlignment(), b.getVerticalTextPosition(), b.getHorizontalTextPosition(), viewRect, iconRect,
			textRect, b.getText() == null ? 0 : b.getIconTextGap());

	g.setColor(b.getBackground());

	if (b.isContentAreaFilled()) {
		if (RapidLookTools.isToolbarButton(b)) {
			RapidLookTools.drawToolbarButton(g, b);
		} else {
			RapidLookTools.drawButton(b, g, RapidLookTools.createShapeForButton(b));
		}
	}

	if (b.getIcon() != null) {
		paintIcon(g, b, iconRect);
	}

	if (text != null && !text.equals("")) {
		View v = (View) c.getClientProperty(BasicHTML.propertyKey);
		if (v != null) {
			v.paint(g, textRect);
		} else {
			paintText(g, b, textRect, text);
		}
	}

	if (b.isFocusPainted() && b.hasFocus()) {
		paintFocus(g, b, viewRect, textRect, iconRect);
	}

	if (!RapidLookTools.isToolbarButton(b)) {
		if (b.isBorderPainted()) {
			RapidLookTools.drawButtonBorder(b, g, RapidLookTools.createBorderShapeForButton(b));
		}
	}
}
 

/**
 * To override font, override createToolTip() on component creating tooltip.
 * On creation of ToolTip, change to desired font.
 * @param g
 * @param c 
 */
@Override
public void paint(Graphics g, JComponent c) {
    String tipText = ((JToolTip)c).getTipText();
    tipText = tipText == null ? "" : tipText;
    String[] tipLines = tipText.split("\n");
    Font font = c.getFont();
    
    g.setFont(font);
    
    FontMetrics metrics = g.getFontMetrics();
    int fontHeight = metrics.getHeight();
    int height = (fontHeight * tipLines.length) + 2;
    int width = this.getWidestStringText(tipLines, metrics) + 10;
    
    int fontSize = font.getSize();
    fontSize = fontSize == 0 ? PGTUtil.DEFAULT_FONT_SIZE.intValue() : fontSize;
    c.setFont(font.deriveFont(fontSize));
    ((JToolTip)c).setTipText(tipText);
    
    
    Dimension size = new Dimension(width, height);
    
    c.setSize(size);
    c.getParent().setSize(size);
    
    Insets insets = c.getInsets();
    Rectangle paintTextR = new Rectangle(
        insets.left,
        insets.top,
        size.width - (insets.left + insets.right),
        size.height - (insets.top + insets.bottom));
    
    ((Graphics2D)g).setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    
    g.setColor(Color.black);
    g.fillRect(insets.left,
        insets.top,
        size.width - (insets.left + insets.right),
        size.height - (insets.top + insets.bottom));
    
    g.setColor(Color.white);
    
    for (int i = 0 ; i < tipLines.length; i++) {
        g.drawString(tipLines[i], paintTextR.x + 5,
                paintTextR.y + metrics.getAscent() + (i * (fontHeight)));
    }
}
 

public static void setFontSizeForComponent(JComponent component, int newFontSize)  {
	Font original = component.getFont();
	Font newFont = original.deriveFont(Float.valueOf(newFontSize));
	component.setFont(newFont);
}