/**
* Replaces the attributes that are equal to <VAR>null </VAR> with the attributes of a given font.
*
* @param font the font of a bigger element class
* @return a <CODE>Font</CODE>
*/
public Font difference(Font font) {
// size
float dSize = font.size;
if (dSize == UNDEFINED) {
dSize = this.size;
}
// style
int dStyle = UNDEFINED;
int style1 = this.style;
int style2 = font.style();
if (style1 != UNDEFINED || style2 != UNDEFINED) {
if (style1 == UNDEFINED) style1 = 0;
if (style2 == UNDEFINED) style2 = 0;
dStyle = style1 | style2;
}
// color
Color dColor = font.color;
if (dColor == null) {
dColor = this.color;
}
// family
if (font.baseFont != null) {
return new Font(font.baseFont, dSize, dStyle, dColor);
}
if (font.family() != UNDEFINED) {
return new Font(font.family, dSize, dStyle, dColor);
}
if (this.baseFont != null) {
if (dStyle == style1) {
return new Font(this.baseFont, dSize, dStyle, dColor);
} else {
return FontFactory.getFont(this.getFamilyname(), dSize, dStyle, dColor);
}
}
return new Font(this.family, dSize, dStyle, dColor);
}
/**
* Compares this <CODE>Font</CODE> with another
*
* @param object the other <CODE>Font</CODE>
* @return a value
*/
public int compareTo(Object object) {
if (object == null) {
return -1;
}
Font font;
try {
font = (Font) object;
if (baseFont != null && !baseFont.equals(font.getBaseFont())) {
return -2;
}
if (this.family != font.family()) {
return 1;
}
if (this.size != font.size()) {
return 2;
}
if (this.style != font.style()) {
return 3;
}
if (this.color == null) {
if (font.color == null) {
return 0;
}
return 4;
}
if (font.color == null) {
return 4;
}
if (this.color.equals(font.color())) {
return 0;
}
return 4;
} catch (ClassCastException cce) {
return -3;
}
}
