/**
* Sets the Red, Green, and Blue color variables. This will automatically populate the Hue,
* Saturation and Brightness and Hexadecimal fields, too.
*
* <p>The RGB color model is an additive color model in which red, green, and blue light are added
* together in various ways to reproduce a broad array of colors. The name of the model comes from
* the initials of the three additive primary colors, red, green, and blue.
*
* @param red strength - valid range is 0-255
* @param green strength - valid range is 0-255
* @param blue strength - valid range is 0-255
* @throws java.lang.Exception Exception if the Red, Green or Blue variables are out of range.
*/
public void setRGB(int red, int green, int blue) throws Exception {
Color color = new Color();
color.setRGB(red, green, blue);
this.red = red;
this.green = green;
this.blue = blue;
this.hue = color.getHue();
this.saturation = color.getSaturation();
this.brightness = color.getValue();
tbRed.setText(Integer.toString(this.red));
tbGreen.setText(Integer.toString(this.green));
tbBlue.setText(Integer.toString(this.blue));
tbHue.setText(Integer.toString(this.hue));
tbSaturation.setText(Integer.toString(this.saturation));
tbBrightness.setText(Integer.toString(this.brightness));
tbHexColor.setText(color.getHex());
setPreview(color.getHex());
updateSliders();
}
/**
* Fired whenever something in this widget changes.
*
* <p>Subclasses that override this method must call <tt>super.onChange(sender)</tt> to ensure
* that the Widget recieves its events.
*
* @param sender the widget that has changed.
*/
public void onChange(Widget sender) {
if (sender == tbHexColor) {
// Figure out colors
// Color class will do bounds check on hex input
try {
Color color = new Color();
color.setHex(tbHexColor.getText());
tbHue.setText(Integer.toString(color.getHue()));
tbSaturation.setText(Integer.toString(color.getSaturation()));
tbBrightness.setText(Integer.toString(color.getValue()));
tbRed.setText(Integer.toString(color.getRed()));
tbGreen.setText(Integer.toString(color.getGreen()));
tbBlue.setText(Integer.toString(color.getBlue()));
tbHexColor.setText(color.getHex());
setPreview(color.getHex());
} catch (Exception e) {
}
}
if (sender == tbRed || sender == tbGreen || sender == tbBlue) {
// Don't allow this value to overflow or underflow
try {
if (Integer.parseInt(((TextBox) sender).getText()) > 255) {
((TextBox) sender).setText("255");
}
if (Integer.parseInt(((TextBox) sender).getText()) < 0) {
((TextBox) sender).setText("0");
}
} catch (Exception e) {
}
red = Integer.parseInt(tbRed.getText());
green = Integer.parseInt(tbGreen.getText());
blue = Integer.parseInt(tbBlue.getText());
hue = Integer.parseInt(tbHue.getText());
saturation = Integer.parseInt(tbSaturation.getText());
brightness = Integer.parseInt(tbBrightness.getText());
// Figure out the colors
try {
Color color = new Color();
color.setRGB(red, green, blue);
tbHue.setText(Integer.toString(color.getHue()));
tbSaturation.setText(Integer.toString(color.getSaturation()));
tbBrightness.setText(Integer.toString(color.getValue()));
tbHexColor.setText(color.getHex());
setPreview(color.getHex());
} catch (Exception e) {
}
} else if (sender == tbHue || sender == tbSaturation || sender == tbBrightness) {
// Don't allow this value to overflow
try {
if (Integer.parseInt(tbHue.getText()) > 359) {
tbHue.setText("359");
}
if (Integer.parseInt(tbSaturation.getText()) > 100) {
tbSaturation.setText("100");
}
if (Integer.parseInt(tbBrightness.getText()) > 100) {
tbBrightness.setText("100");
}
} catch (Exception e) {
}
red = Integer.parseInt(tbRed.getText());
green = Integer.parseInt(tbGreen.getText());
blue = Integer.parseInt(tbBlue.getText());
hue = Integer.parseInt(tbHue.getText());
saturation = Integer.parseInt(tbSaturation.getText());
brightness = Integer.parseInt(tbBrightness.getText());
// Figure out colors
try {
Color color = new Color();
color.setHSV(hue, saturation, brightness);
tbRed.setText(Integer.toString(color.getRed()));
tbGreen.setText(Integer.toString(color.getGreen()));
tbBlue.setText(Integer.toString(color.getBlue()));
tbHexColor.setText(color.getHex());
setPreview(color.getHex());
} catch (Exception e) {
}
}
// Let the sliders know something's changed
updateSliders();
ChangeEvent.fireNativeEvent(Document.get().createChangeEvent(), this);
}