/** @return font color index */
public short getFontColorIndex() {
if (_font.sizeOfColorArray() == 0) return -1;
int idx = 0;
CTColor color = _font.getColorArray(0);
if (color.isSetIndexed()) idx = (int) color.getIndexed();
return (short) idx;
}
/** Standard Red Green Blue ctColor value (RGB) with applied tint. Alpha values are ignored. */
public byte[] getRgbWithTint() {
byte[] rgb = ctColor.getRgb();
if (rgb != null) {
if (rgb.length == 4) {
byte[] tmp = new byte[3];
System.arraycopy(rgb, 1, tmp, 0, 3);
rgb = tmp;
}
for (int i = 0; i < rgb.length; i++) {
rgb[i] = applyTint(rgb[i] & 0xFF, ctColor.getTint());
}
}
return rgb;
}
/**
* Specifies the tint value applied to the ctColor.
*
* <p>If tint is supplied, then it is applied to the RGB value of the ctColor to determine the
* final ctColor applied.
*
* <p>The tint value is stored as a double from -1.0 .. 1.0, where -1.0 means 100% darken and 1.0
* means 100% lighten. Also, 0.0 means no change.
*
* <p>In loading the RGB value, it is converted to HLS where HLS values are (0..HLSMAX), where
* HLSMAX is currently 255. Here are some examples of how to apply tint to ctColor:
*
* <blockquote>
*
* <pre>
* If (tint < 0)
* Lum' = Lum * (1.0 + tint)
*
* For example: Lum = 200; tint = -0.5; Darken 50%
* Lum' = 200 * (0.5) => 100
* For example: Lum = 200; tint = -1.0; Darken 100% (make black)
* Lum' = 200 * (1.0-1.0) => 0
* If (tint > 0)
* Lum' = Lum * (1.0-tint) + (HLSMAX - HLSMAX * (1.0-tint))
* For example: Lum = 100; tint = 0.75; Lighten 75%
*
* Lum' = 100 * (1-.75) + (HLSMAX - HLSMAX*(1-.75))
* = 100 * .25 + (255 - 255 * .25)
* = 25 + (255 - 63) = 25 + 192 = 217
* For example: Lum = 100; tint = 1.0; Lighten 100% (make white)
* Lum' = 100 * (1-1) + (HLSMAX - HLSMAX*(1-1))
* = 100 * 0 + (255 - 255 * 0)
* = 0 + (255 - 0) = 255
* </pre>
*
* </blockquote>
*
* @return the tint value
*/
public double getTint() {
// 20101211, [email protected]: Java's double precision is less than Excel's
// e.g. value of 0.59999389629810485, 17 digits as stored in style.xml, Java interpret it
// as 0.5999938962981048, 16 digits, the last digit is missing. This could cause 1
// difference in RGB color.
return ctColor.getTint();
}
private byte[] getRGBOrARGB() {
byte[] rgb = null;
if (ctColor.isSetIndexed() && ctColor.getIndexed() > 0) {
HSSFColor indexed = HSSFColor.getIndexHash().get((int) ctColor.getIndexed());
if (indexed != null) {
rgb = new byte[3];
rgb[0] = (byte) indexed.getTriplet()[0];
rgb[1] = (byte) indexed.getTriplet()[1];
rgb[2] = (byte) indexed.getTriplet()[2];
return rgb;
}
}
if (!ctColor.isSetRgb()) {
// No colour is available, sorry
return null;
}
// Grab the colour
rgb = ctColor.getRgb();
if (rgb.length == 4) {
// Good to go, return it as-is
return rgb;
}
// For RGB colours, but not ARGB (we think...)
// Excel gets black and white the wrong way around, so switch them
// 20110321, [email protected]: Theme 0 and 1 shall switch, Theme 2 and 3 shall switch. It is
// not correct to change here!
// if (rgb[0] == 0 && rgb[1] == 0 && rgb[2] == 0) {
// rgb = new byte[] {-1, -1, -1};
// }
// else if (rgb[0] == -1 && rgb[1] == -1 && rgb[2] == -1) {
// rgb = new byte[] {0, 0, 0};
// }
return rgb;
}
/**
* Indexed ctColor value. Only used for backwards compatibility. References a ctColor in
* indexedColors.
*/
public void setIndexed(int indexed) {
ctColor.setIndexed(indexed);
}
/**
* Indexed ctColor value. Only used for backwards compatibility. References a ctColor in
* indexedColors.
*/
public short getIndexed() {
return (short) ctColor.getIndexed();
}
/** A boolean value indicating the ctColor is automatic and system ctColor dependent. */
public void setAuto(boolean auto) {
ctColor.setAuto(auto);
}
/** A boolean value indicating the ctColor is automatic and system ctColor dependent. */
public boolean isAuto() {
return ctColor.getAuto();
}
public XSSFColor(byte[] rgb) {
this();
ctColor.setRgb(rgb);
}
public XSSFColor(java.awt.Color clr) {
this();
ctColor.setRgb(new byte[] {(byte) clr.getRed(), (byte) clr.getGreen(), (byte) clr.getBlue()});
}
public boolean equals(Object o) {
if (o == null || !(o instanceof XSSFColor)) return false;
XSSFColor cf = (XSSFColor) o;
return ctColor.toString().equals(cf.getCTColor().toString());
}
public int hashCode() {
return ctColor.toString().hashCode();
}
/**
* Specifies the tint value applied to the ctColor.
*
* <p>If tint is supplied, then it is applied to the RGB value of the ctColor to determine the
* final ctColor applied.
*
* <p>The tint value is stored as a double from -1.0 .. 1.0, where -1.0 means 100% darken and 1.0
* means 100% lighten. Also, 0.0 means no change.
*
* <p>In loading the RGB value, it is converted to HLS where HLS values are (0..HLSMAX), where
* HLSMAX is currently 255. Here are some examples of how to apply tint to ctColor:
*
* <blockquote>
*
* <pre>
* If (tint < 0)
* Lum' = Lum * (1.0 + tint)
*
* For example: Lum = 200; tint = -0.5; Darken 50%
* Lum' = 200 * (0.5) => 100
* For example: Lum = 200; tint = -1.0; Darken 100% (make black)
* Lum' = 200 * (1.0-1.0) => 0
* If (tint > 0)
* Lum' = Lum * (1.0-tint) + (HLSMAX - HLSMAX * (1.0-tint))
* For example: Lum = 100; tint = 0.75; Lighten 75%
*
* Lum' = 100 * (1-.75) + (HLSMAX - HLSMAX*(1-.75))
* = 100 * .25 + (255 - 255 * .25)
* = 25 + (255 - 63) = 25 + 192 = 217
* For example: Lum = 100; tint = 1.0; Lighten 100% (make white)
* Lum' = 100 * (1-1) + (HLSMAX - HLSMAX*(1-1))
* = 100 * 0 + (255 - 255 * 0)
* = 0 + (255 - 0) = 255
* </pre>
*
* </blockquote>
*
* @param tint the tint value
*/
public void setTint(double tint) {
ctColor.setTint(tint);
}
/**
* Index into the <clrScheme> collection, referencing a particular <sysClr> or <srgbClr> value
* expressed in the Theme part.
*/
public void setTheme(int theme) {
ctColor.setTheme(theme);
}
/**
* Index into the <clrScheme> collection, referencing a particular <sysClr> or <srgbClr> value
* expressed in the Theme part.
*/
public int getTheme() {
return (int) ctColor.getTheme();
}
/** Standard Alpha Red Green Blue ctColor value (ARGB). */
public void setRgb(byte[] rgb) {
ctColor.setRgb(rgb);
}
