/** @see org.newdawn.slick.Font#getHeight(java.lang.String) */
public int getHeight(String text) {
DisplayList displayList = null;
if (displayListCaching) {
displayList = (DisplayList) displayLists.get(text);
if (displayList != null && displayList.height != null) return displayList.height.intValue();
}
int lines = 0;
int maxHeight = 0;
for (int i = 0; i < text.length(); i++) {
int id = text.charAt(i);
if (id == '\n') {
lines++;
maxHeight = 0;
continue;
}
// ignore space, it doesn't contribute to height
if (id == ' ') {
continue;
}
CharDef charDef = chars[id];
if (charDef == null) {
continue;
}
maxHeight = Math.max(charDef.height + charDef.yoffset, maxHeight);
}
maxHeight += lines * getLineHeight();
if (displayList != null) displayList.height = new Short((short) maxHeight);
return maxHeight;
}
/** @see Font#drawString(float, float, String, Color, int, int) */
public void drawString(float x, float y, String text, Color col, int startIndex, int endIndex) {
fontImage.bind();
col.bind();
GL.glTranslatef(x, y, 0);
if (displayListCaching && startIndex == 0 && endIndex == text.length() - 1) {
DisplayList displayList =
(DisplayList) displayLists.get(text + "" + startIndex + "" + endIndex);
if (displayList != null) {
GL.glCallList(displayList.id);
} else {
// Compile a new display list.
displayList = new DisplayList();
displayList.text = text;
int displayListCount = displayLists.size();
if (displayListCount < DISPLAY_LIST_CACHE_SIZE) {
displayList.id = baseDisplayListID + displayListCount;
} else {
displayList.id = eldestDisplayListID;
displayLists.remove(eldestDisplayList.text);
}
displayLists.put(text + "" + startIndex + "" + endIndex, displayList);
GL.glNewList(displayList.id, SGL.GL_COMPILE_AND_EXECUTE);
render(text, startIndex, endIndex);
GL.glEndList();
}
} else {
render(text, startIndex, endIndex);
}
GL.glTranslatef(-x, -y, 0);
}
/** @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;
}
/**
* Returns the distance from the y drawing location to the top most pixel of the specified text.
*
* @param text The text that is to be tested
* @return The yoffset from the y draw location at which text will start
*/
public int getYOffset(String text) {
DisplayList displayList = null;
if (displayListCaching) {
displayList = (DisplayList) displayLists.get(text);
if (displayList != null && displayList.yOffset != null) return displayList.yOffset.intValue();
}
int stopIndex = text.indexOf('\n');
if (stopIndex == -1) stopIndex = text.length();
int minYOffset = 10000;
for (int i = 0; i < stopIndex; i++) {
int id = text.charAt(i);
CharDef charDef = chars[id];
if (charDef == null) {
continue;
}
minYOffset = Math.min(charDef.yoffset, minYOffset);
}
if (displayList != null) displayList.yOffset = new Short((short) minYOffset);
return minYOffset;
}
