sigonasr2/jmonkeyengine
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Fixed a handful of bugs in the getLineWidth() method.

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Essentially, it is doing a parallel and nearly completely
different calculation of line width than the one that
Letters/BitmapText does.  Consolidating this position
model would probably be a good idea someday.


git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@6985 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
This commit is contained in:
PSp..om 2011-03-14 23:35:54 +00:00
parent 654763d950
commit 596ed7578e
1 changed files with 25 additions and 1 deletions
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26
engine/src/core/com/jme3/font/BitmapFont.java
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@ -138,6 +138,18 @@ public class BitmapFont implements Savable {
}
public float getLineWidth(CharSequence text){
// This method will probably always be a bit of a maintenance
// nightmare since it basis its calculation on a different
// routine than the Letters class. The ideal situation would
// be to abstract out letter position and size into its own
// class that both BitmapFont and Letters could use for
// positioning.
// If getLineWidth() here ever again returns a different value
// than Letters does with the same text then it might be better
// just to create a Letters object for the sole purpose of
// getting a text size. It's less efficient but at least it
// would be accurate.
float lineWidth = 0f;
float maxLineWidth = 0f;
char lastChar = 0;
@ -149,6 +161,8 @@ public class BitmapFont implements Savable {
if (theChar == '\n'){
maxLineWidth = Math.max(maxLineWidth, lineWidth);
lineWidth = 0f;
firstCharOfLine = true;
continue;
}
BitmapCharacter c = charSet.getCharacter((int) theChar);
if (c != null){
@ -162,10 +176,20 @@ public class BitmapFont implements Savable {
}
}
if (!firstCharOfLine){
lineWidth += c.getXOffset() * sizeScale;
lineWidth += findKerningAmount(lastChar, theChar) * sizeScale;
} else {
firstCharOfLine = false;
}
float xAdvance = c.getXAdvance() * sizeScale;
lineWidth += xAdvance;
// If this is the last character, then we really should have
// only add its width
if (i == text.length() - 1) {
lineWidth += c.getWidth() * sizeScale;
} else {
lineWidth += xAdvance;
}
}
}
return Math.max(maxLineWidth, lineWidth);