/**
* Set the Hue, Saturation and Value (Brightness) variables. This will automatically populate the
* Red, Green, Blue, and Hexadecimal fields, too.
*
* <p>HSV represents points in the RGB color space, which attempt to describe perceptual color
* relationships more accurately than RGB. HSV describes colors as points in a cylinder whose
* central axis ranges from black at the bottom to white at the top with neutral colors between
* them, where angle around the axis corresponds to “hue”, distance from the axis corresponds to
* “saturation”, and distance along the axis corresponds to “lightness”, “value”, or “brightness”.
*
* @param hue angle - valid range is 0-359
* @param saturation percent - valid range is 0-100
* @param value percent (Brightness) - valid range is 0-100
* @throws java.lang.Exception A general exception if the Hue, Saturation, or Value variables are
* out of range.
*/
public void setHSV(int hue, int saturation, int value) throws Exception {
Color color = new Color();
color.setHSV(hue, saturation, value);
this.red = color.getRed();
this.green = color.getGreen();
this.blue = color.getBlue();
this.hue = hue;
this.saturation = saturation;
this.brightness = value;
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 when the user clicks on a widget.
*
* <p>Subclasses that override this method must call <tt>super.onClick(sender)</tt> to ensure that
* the Widget recieves its events.
*
* @param sender the widget sending the event.
*/
public void onClick(Widget sender) {
if (sender == rbHue) {
if (colorMode != SliderMap.Hue) {
colorMode = SliderMap.Hue;
slidermap.setColorSelectMode(SliderMap.Hue);
sliderbar.setColorSelectMode(SliderBar.Hue);
slidermap.setOverlayOpacity(100);
sliderbar.setLayerOpacity(100, SliderBar.BarD);
}
try {
Color color = new Color();
color.setHSV(hue, 100, 100);
slidermap.setOverlayColor("#" + color.getHex());
} catch (Exception e) {
}
sliderbar.setSliderPosition(256 - (int) ((new Integer(hue).floatValue() / 360) * 256));
slidermap.setSliderPosition(
(int) ((new Integer(saturation).floatValue() / 100) * 256),
256 - (int) ((new Integer(brightness).floatValue() / 100) * 256));
} else if (sender == rbSaturation) {
if (colorMode != SliderMap.Saturation) {
colorMode = SliderMap.Saturation;
slidermap.setColorSelectMode(SliderMap.Saturation);
sliderbar.setColorSelectMode(SliderBar.Saturation);
slidermap.setOverlayColor("transparent");
sliderbar.setLayerColor("#ffffff", SliderBar.BarC);
sliderbar.setLayerOpacity(100, SliderBar.BarD);
}
slidermap.setOverlayOpacity(100 - saturation);
sliderbar.setLayerColor(tbHexColor.getText(), SliderBar.BarD);
sliderbar.setSliderPosition(256 - (int) ((new Integer(saturation).floatValue() / 100) * 256));
slidermap.setSliderPosition(
(int) ((new Integer(hue).floatValue() / 360) * 256),
256 - (int) ((new Integer(brightness).floatValue() / 100) * 256));
} else if (sender == rbBrightness) {
if (colorMode != SliderMap.Brightness) {
colorMode = SliderMap.Brightness;
slidermap.setColorSelectMode(SliderMap.Brightness);
sliderbar.setColorSelectMode(SliderBar.Brightness);
slidermap.setUnderlayColor("#000000");
slidermap.setOverlayColor("transparent");
sliderbar.setLayerOpacity(100, SliderBar.BarD);
}
try {
Color color = new Color();
color.setHSV(hue, saturation, 100);
sliderbar.setLayerColor("#" + color.getHex(), SliderBar.BarD);
} catch (Exception e) {
}
slidermap.setOverlayOpacity(brightness);
sliderbar.setSliderPosition(256 - (int) ((new Integer(brightness).floatValue() / 100) * 256));
slidermap.setSliderPosition(
(int) ((new Integer(hue).floatValue() / 360) * 256),
256 - (int) ((new Integer(saturation).floatValue() / 100) * 256));
} else if (sender == rbRed) {
if (colorMode != SliderMap.Red) {
colorMode = SliderMap.Red;
slidermap.setColorSelectMode(SliderMap.Red);
sliderbar.setColorSelectMode(SliderBar.Red);
}
slidermap.setOverlayOpacity(percentOf(red, 100));
sliderbar.setSliderPosition(256 - red);
slidermap.setSliderPosition(blue, 256 - green);
} else if (sender == rbGreen) {
if (colorMode != SliderMap.Green) {
colorMode = SliderMap.Green;
slidermap.setColorSelectMode(SliderMap.Green);
sliderbar.setColorSelectMode(SliderBar.Green);
}
slidermap.setOverlayOpacity(percentOf(green, 100));
sliderbar.setSliderPosition(256 - green);
slidermap.setSliderPosition(blue, 256 - red);
} else if (sender == rbBlue) {
if (colorMode != SliderMap.Blue) {
colorMode = SliderMap.Blue;
slidermap.setColorSelectMode(SliderMap.Blue);
sliderbar.setColorSelectMode(SliderBar.Blue);
}
slidermap.setOverlayOpacity(percentOf(blue, 100));
sliderbar.setSliderPosition(256 - blue);
slidermap.setSliderPosition(red, 256 - green);
}
if (colorMode == SliderMap.Red || colorMode == SliderMap.Green || colorMode == SliderMap.Blue) {
int x = 0;
int y = 0;
if (colorMode == SliderMap.Red) {
x = blue;
y = green;
}
if (colorMode == SliderMap.Green) {
x = blue;
y = red;
}
if (colorMode == SliderMap.Blue) {
x = red;
y = green;
}
int horzPer = (int) ((new Float(x).floatValue() / 256) * 100);
int vertPer = (int) ((new Float(y).floatValue() / 256) * 100);
int horzPerRev = (int) (((256 - new Float(x).floatValue()) / 256) * 100);
int vertPerRev = (int) (((256 - new Float(y).floatValue()) / 256) * 100);
if (vertPerRev > horzPerRev) sliderbar.setLayerOpacity(horzPerRev, SliderBar.BarD);
else sliderbar.setLayerOpacity(vertPerRev, SliderBar.BarD);
if (vertPerRev > horzPer) sliderbar.setLayerOpacity(horzPer, SliderBar.BarC);
else sliderbar.setLayerOpacity(vertPerRev, SliderBar.BarC);
if (vertPer > horzPer) sliderbar.setLayerOpacity(horzPer, SliderBar.BarB);
else sliderbar.setLayerOpacity(vertPer, SliderBar.BarB);
if (vertPer > horzPerRev) sliderbar.setLayerOpacity(horzPerRev, SliderBar.BarA);
else sliderbar.setLayerOpacity(vertPer, SliderBar.BarA);
}
}
/**
* 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);
}
