/**
* Render based on immediate rendering
*
* @param text The text to be rendered
* @param start The index of the first character in the string to render
* @param end The index of the last character in the string to render
*/
private void render(String text, int start, int end) {
GL.glBegin(SGL.GL_QUADS);
int x = 0, y = 0;
CharDef lastCharDef = null;
char[] data = text.toCharArray();
for (int i = 0; i < data.length; i++) {
int id = data[i];
if (id == '\n') {
x = 0;
y += getLineHeight();
continue;
}
if (id >= chars.length) {
continue;
}
CharDef charDef = chars[id];
if (charDef == null) {
continue;
}
if (lastCharDef != null) x += lastCharDef.getKerning(id);
lastCharDef = charDef;
if ((i >= start) && (i <= end)) {
charDef.draw(x, y);
}
x += charDef.xadvance;
}
GL.glEnd();
}
private CharDef parseChar(final String line) throws Exception {
CharDef def = new CharDef();
StringTokenizer tokens = new StringTokenizer(line, " =");
tokens.nextToken();
tokens.nextToken();
def.id = Short.parseShort(tokens.nextToken());
if (def.id < 0) {
return null;
}
if (def.id > DEFAULT_MAX_CHAR) {
throw new Exception(def.id + " > " + DEFAULT_MAX_CHAR);
}
tokens.nextToken();
def.tx = Short.parseShort(tokens.nextToken());
tokens.nextToken();
def.ty = Short.parseShort(tokens.nextToken());
tokens.nextToken();
def.width = Short.parseShort(tokens.nextToken());
tokens.nextToken();
def.height = Short.parseShort(tokens.nextToken());
tokens.nextToken();
def.xoffset = Short.parseShort(tokens.nextToken());
tokens.nextToken();
def.yoffset = Short.parseShort(tokens.nextToken());
tokens.nextToken();
def.advance = Short.parseShort(tokens.nextToken());
if (def.id != (short) ' ') {
lineHeight = MathUtils.max(def.height + def.yoffset, lineHeight);
}
return def;
}
public int getWidth(String text) {
if (text == null) {
return 0;
}
Display display = null;
for (Display d : displays.values()) {
if (d != null && text.equals(d.text)) {
display = d;
break;
}
}
if (display != null && display.width != 0) {
return display.width;
}
if (display == null) {
display = new Display();
}
int width = 0;
CharDef lastCharDef = null;
for (int i = 0, n = text.length(); i < n; i++) {
int id = text.charAt(i);
if (id == '\n') {
width = 0;
continue;
}
if (id >= chars.length) {
continue;
}
CharDef charDef = chars[id];
if (charDef == null) {
continue;
}
if (lastCharDef != null) {
width += lastCharDef.getKerning(id);
}
lastCharDef = charDef;
if (i < n - 1) {
width += charDef.advance;
} else {
width += charDef.width;
}
display.width = MathUtils.max(display.width, width);
}
return display.width;
}
/**
* Parse a single character line from the definition
*
* @param line The line to be parsed
* @return The character definition from the line
* @throws SlickException Indicates a given character is not valid in an angel code font
*/
private CharDef parseChar(String line) throws SlickException {
CharDef def = new CharDef();
StringTokenizer tokens = new StringTokenizer(line, " =");
tokens.nextToken(); // char
tokens.nextToken(); // id
def.id = Short.parseShort(tokens.nextToken()); // id value
if (def.id < 0) {
return null;
}
if (def.id > MAX_CHAR) {
throw new SlickException(
"Invalid character '"
+ def.id
+ "': AngelCodeFont does not support characters above "
+ MAX_CHAR);
}
tokens.nextToken(); // x
def.x = Short.parseShort(tokens.nextToken()); // x value
tokens.nextToken(); // y
def.y = Short.parseShort(tokens.nextToken()); // y value
tokens.nextToken(); // width
def.width = Short.parseShort(tokens.nextToken()); // width value
tokens.nextToken(); // height
def.height = Short.parseShort(tokens.nextToken()); // height value
tokens.nextToken(); // x offset
def.xoffset = Short.parseShort(tokens.nextToken()); // xoffset value
tokens.nextToken(); // y offset
def.yoffset = Short.parseShort(tokens.nextToken()); // yoffset value
tokens.nextToken(); // xadvance
def.xadvance = Short.parseShort(tokens.nextToken()); // xadvance
def.init();
if (def.id != ' ') {
lineHeight = Math.max(def.height + def.yoffset, lineHeight);
}
return def;
}
/** @see org.newdawn.slick.Font#getWidth(java.lang.String) */
public int getWidth(String text) {
DisplayList displayList = null;
if (displayListCaching) {
displayList = (DisplayList) displayLists.get(text);
if (displayList != null && displayList.width != null) return displayList.width.intValue();
}
int maxWidth = 0;
int width = 0;
CharDef lastCharDef = null;
for (int i = 0, n = text.length(); i < n; i++) {
int id = text.charAt(i);
if (id == '\n') {
width = 0;
continue;
}
if (id >= chars.length) {
continue;
}
CharDef charDef = chars[id];
if (charDef == null) {
continue;
}
if (lastCharDef != null) width += lastCharDef.getKerning(id);
lastCharDef = charDef;
if (i < n - 1) {
width += charDef.xadvance;
} else {
width += charDef.width;
}
maxWidth = Math.max(maxWidth, width);
}
if (displayList != null) displayList.width = new Short((short) maxWidth);
return maxWidth;
}
private void drawBatchString(
float tx, float ty, String text, LColor c, int startIndex, int endIndex) {
if (isClose) {
return;
}
if (displays.size > DEFAULT_MAX_CHAR) {
displays.clear();
}
lazyHashCode = 1;
if (c != null) {
lazyHashCode = LSystem.unite(lazyHashCode, c.r);
lazyHashCode = LSystem.unite(lazyHashCode, c.g);
lazyHashCode = LSystem.unite(lazyHashCode, c.b);
lazyHashCode = LSystem.unite(lazyHashCode, c.a);
}
String key = text + lazyHashCode;
Display display = displays.get(key);
if (display == null) {
int x = 0, y = 0;
displayList.glBegin();
displayList.setBatchPos(tx, ty);
if (c != null) {
displayList.setImageColor(c);
}
CharDef lastCharDef = null;
char[] data = text.toCharArray();
for (int i = 0; i < data.length; i++) {
int id = data[i];
if (id == '\n') {
x = 0;
y += getLineHeight();
continue;
}
if (id >= chars.length) {
continue;
}
CharDef charDef = chars[id];
if (charDef == null) {
continue;
}
if (lastCharDef != null) {
x += lastCharDef.getKerning(id);
}
lastCharDef = charDef;
if ((i >= startIndex) && (i <= endIndex)) {
charDef.draw(x, y);
}
x += charDef.advance;
}
if (c != null) {
displayList.setImageColor(LColor.white);
}
displayList.glEnd();
display = new Display();
display.cache = displayList.newBatchCache();
display.text = text;
display.width = 0;
display.height = 0;
displays.put(key, display);
} else if (display.cache != null) {
display.cache.x = tx;
display.cache.y = ty;
displayList.postCache(display.cache);
}
}
