DefaultPreviewPanelpublic class DefaultPreviewPanel extends JPanel | The standard preview panel for the color chooser.
Warning:
Serialized objects of this class will not be compatible with
future Swing releases. The current serialization support is
appropriate for short term storage or RMI between applications running
the same version of Swing. As of 1.4, support for long term storage
of all JavaBeansTM
has been added to the java.beans package.
Please see {@link java.beans.XMLEncoder}. |
| Fields Summary |
|---|
| private int | squareSize | | private int | squareGap | | private int | innerGap | | private int | textGap | | private Font | font | | private String | sampleText | | private int | swatchWidth | | private Color | oldColor |
| Methods Summary |
|---|
| private javax.swing.JColorChooser | getColorChooser()
return (JColorChooser)SwingUtilities.getAncestorOfClass(
JColorChooser.class, this);
| | public java.awt.Dimension | getPreferredSize()
JComponent host = getColorChooser();
if (host == null) {
host = this;
}
FontMetrics fm = host.getFontMetrics(getFont());
int ascent = fm.getAscent();
int height = fm.getHeight();
int width = SwingUtilities2.stringWidth(host, fm, sampleText);
int y = height*3 + textGap*3;
int x = squareSize * 3 + squareGap*2 + swatchWidth + width + textGap*3;
return new Dimension( x,y );
| | public void | paintComponent(java.awt.Graphics g)
if (oldColor == null)
oldColor = getForeground();
g.setColor(getBackground());
g.fillRect(0,0,getWidth(),getHeight());
if (this.getComponentOrientation().isLeftToRight()) {
int squareWidth = paintSquares(g, 0);
int textWidth = paintText(g, squareWidth);
paintSwatch(g, squareWidth + textWidth);
} else {
int swatchWidth = paintSwatch(g, 0);
int textWidth = paintText(g, swatchWidth);
paintSquares(g , swatchWidth + textWidth);
}
| | private int | paintSquares(java.awt.Graphics g, int offsetX)
int squareXOffset = offsetX;
Color color = getForeground();
g.setColor(Color.white);
g.fillRect(squareXOffset,0,squareSize,squareSize);
g.setColor(color);
g.fillRect(squareXOffset+innerGap,
innerGap,
squareSize - (innerGap*2),
squareSize - (innerGap*2));
g.setColor(Color.white);
g.fillRect(squareXOffset+innerGap*2,
innerGap*2,
squareSize - (innerGap*4),
squareSize - (innerGap*4));
g.setColor(color);
g.fillRect(squareXOffset,squareSize+squareGap,squareSize,squareSize);
g.translate(squareSize+squareGap, 0);
g.setColor(Color.black);
g.fillRect(squareXOffset,0,squareSize,squareSize);
g.setColor(color);
g.fillRect(squareXOffset+innerGap,
innerGap,
squareSize - (innerGap*2),
squareSize - (innerGap*2));
g.setColor(Color.white);
g.fillRect(squareXOffset+innerGap*2,
innerGap*2,
squareSize - (innerGap*4),
squareSize - (innerGap*4));
g.translate(-(squareSize+squareGap), 0);
g.translate(squareSize+squareGap, squareSize+squareGap);
g.setColor(Color.white);
g.fillRect(squareXOffset,0,squareSize,squareSize);
g.setColor(color);
g.fillRect(squareXOffset+innerGap,
innerGap,
squareSize - (innerGap*2),
squareSize - (innerGap*2));
g.translate(-(squareSize+squareGap), -(squareSize+squareGap));
g.translate((squareSize+squareGap)*2, 0);
g.setColor(Color.white);
g.fillRect(squareXOffset,0,squareSize,squareSize);
g.setColor(color);
g.fillRect(squareXOffset+innerGap,
innerGap,
squareSize - (innerGap*2),
squareSize - (innerGap*2));
g.setColor(Color.black);
g.fillRect(squareXOffset+innerGap*2,
innerGap*2,
squareSize - (innerGap*4),
squareSize - (innerGap*4));
g.translate(-((squareSize+squareGap)*2), 0);
g.translate((squareSize+squareGap)*2, (squareSize+squareGap));
g.setColor(Color.black);
g.fillRect(squareXOffset,0,squareSize,squareSize);
g.setColor(color);
g.fillRect(squareXOffset+innerGap,
innerGap,
squareSize - (innerGap*2),
squareSize - (innerGap*2));
g.translate(-((squareSize+squareGap)*2), -(squareSize+squareGap));
return (squareSize*3+squareGap*2);
| | private int | paintSwatch(java.awt.Graphics g, int offsetX)
int swatchX = offsetX;
g.setColor(oldColor);
g.fillRect(swatchX, 0, swatchWidth, (squareSize) + (squareGap/2));
g.setColor(getForeground());
g.fillRect(swatchX, (squareSize) + (squareGap/2), swatchWidth, (squareSize) + (squareGap/2) );
return (swatchX+swatchWidth);
| | private int | paintText(java.awt.Graphics g, int offsetX)
g.setFont(getFont());
JComponent host = getColorChooser();
if (host == null) {
host = this;
}
FontMetrics fm = SwingUtilities2.getFontMetrics(host, g);
int ascent = fm.getAscent();
int height = fm.getHeight();
int width = SwingUtilities2.stringWidth(host, fm, sampleText);
int textXOffset = offsetX + textGap;
Color color = getForeground();
g.setColor(color);
SwingUtilities2.drawString(host, g, sampleText,textXOffset+(textGap/2),
ascent+2);
g.fillRect(textXOffset,
( height) + textGap,
width + (textGap),
height +2);
g.setColor(Color.black);
SwingUtilities2.drawString(host, g, sampleText,
textXOffset+(textGap/2),
height+ascent+textGap+2);
g.setColor(Color.white);
g.fillRect(textXOffset,
( height + textGap) * 2,
width + (textGap),
height +2);
g.setColor(color);
SwingUtilities2.drawString(host, g, sampleText,
textXOffset+(textGap/2),
((height+textGap) * 2)+ascent+2);
return width + textGap*3;
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