LineMetrics class allows access to the
metrics needed to layout characters along a line
and to layout of a set of lines. A LineMetrics
object encapsulates the measurement information associated
with a run of text.
Fonts can have different metrics for different ranges of
characters. The getLineMetrics methods of
Font take some text as an argument
and return a LineMetrics object describing the
metrics of the initial number of characters in that text, as
returned by getNumChars.
| Access | Constructor and Description |
|---|---|
| protected |
| Modifier and Type | Method and Description |
|---|---|
| public abstract float | |
| public abstract int | |
| public abstract float[] | Returns: the baseline offsets of the text.Returns the baseline offsets of the text, relative to the baseline of the text. |
| public abstract float | |
| public abstract float | |
| public abstract float | |
| public abstract int | Returns: the number of characters (char values) in the text with which
this LineMetrics was created.Returns the number of characters ( |
| public abstract float | Returns: the position of the strike-through line.Returns the position of the strike-through line relative to the baseline. |
| public abstract float | Returns: the thickness of the strike-through line.Returns the thickness of the strike-through line. |
| public abstract float | Returns: the position of the underline.Returns the position of the underline relative to the baseline. |
| public abstract float | Returns: the thickness of the underline.Returns the thickness of the underline. |
| LineMetrics | back to summary |
|---|---|
| protected LineMetrics() Constructor for subclasses to call. | |
| getAscent | back to summary |
|---|---|
| public abstract float getAscent() Returns the ascent of the text. The ascent is the distance from the baseline to the ascender line. The ascent usually represents the the height of the capital letters of the text. Some characters can extend above the ascender line.
| |
| getBaselineIndex | back to summary |
|---|---|
| public abstract int getBaselineIndex() Returns the baseline index of the text.
The index is one of
| |
| getBaselineOffsets | back to summary |
|---|---|
| public abstract float[] getBaselineOffsets() Returns the baseline offsets of the text,
relative to the baseline of the text. The
offsets are indexed by baseline index. For
example, if the baseline index is
| |
| getDescent | back to summary |
|---|---|
| public abstract float getDescent() Returns the descent of the text. The descent is the distance from the baseline to the descender line. The descent usually represents the distance to the bottom of lower case letters like 'p'. Some characters can extend below the descender line.
| |
| getHeight | back to summary |
|---|---|
| public abstract float getHeight() Returns the height of the text. The height is equal to the sum of the ascent, the descent and the leading.
| |
| getLeading | back to summary |
|---|---|
| public abstract float getLeading() Returns the leading of the text. The leading is the recommended distance from the bottom of the descender line to the top of the next line.
| |
| getNumChars | back to summary |
|---|---|
| public abstract int getNumChars() Returns the number of characters (
| |
| getStrikethroughOffset | back to summary |
|---|---|
| public abstract float getStrikethroughOffset() Returns the position of the strike-through line relative to the baseline.
| |
| getStrikethroughThickness | back to summary |
|---|---|
| public abstract float getStrikethroughThickness() Returns the thickness of the strike-through line.
| |
| getUnderlineOffset | back to summary |
|---|---|
| public abstract float getUnderlineOffset() Returns the position of the underline relative to the baseline.
| |
| getUnderlineThickness | back to summary |
|---|---|
| public abstract float getUnderlineThickness() Returns the thickness of the underline.
| |