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java.lang.Objectjava.awt.font.TextMeasurer
public final class TextMeasurer
TextMeasurer is a small utility class for measuring the length of laid-out text objects.
| Constructor Summary | |
|---|---|
TextMeasurer(AttributedCharacterIterator text,
FontRenderContext frc)
Creates a TextMeasurer from a given text in the form of an AttributedCharacterIterator and a
FontRenderContext. |
|
| Method Summary | |
|---|---|
protected Object |
clone()
Clones the TextMeasurer object |
void |
deleteChar(AttributedCharacterIterator newParagraph,
int deletePos)
Update the text if a character is deleted at the position deletePos |
float |
getAdvanceBetween(int start,
int limit)
Returns the total advance between two positions in the paragraph. |
TextLayout |
getLayout(int start,
int limit)
Returns a TextLayout object corresponding to the characters
from text to limit. |
int |
getLineBreakIndex(int start,
float maxAdvance)
Returns the line-break index from a given starting index and a maximum advance. |
void |
insertChar(AttributedCharacterIterator newParagraph,
int insertPos)
Update the text if a character is inserted at the position insertPos |
| Methods inherited from class java.lang.Object |
|---|
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public TextMeasurer(AttributedCharacterIterator text,
FontRenderContext frc)
AttributedCharacterIterator and a
FontRenderContext.
| Method Detail |
|---|
protected Object clone()
clone in class ObjectCloneable
public void deleteChar(AttributedCharacterIterator newParagraph,
int deletePos)
newParagraph - - the updated paragraph.deletePos - - the deletion position
public void insertChar(AttributedCharacterIterator newParagraph,
int insertPos)
newParagraph - - the updated paragraph.insertPos - - the insertion position
public float getAdvanceBetween(int start,
int limit)
start - - the starting character index.limit - - the limiting index.
public TextLayout getLayout(int start,
int limit)
TextLayout object corresponding to the characters
from text to limit.
start - - the starting character index.limit - - the limiting index.
public int getLineBreakIndex(int start,
float maxAdvance)
start - - the starting index.maxAdvance - - the maximum advance allowed.
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