OH_Drawing_LineMetrics

typedef struct OH_Drawing_LineMetrics {...} OH_Drawing_LineMetrics

Overview

This struct describes the measurement information about a line of text.

Since: 12

Related module: Drawing

Header file: drawing_text_typography.h

Name	Description
double ascender	Height of a character above the baseline, after taking the absolute value.
double descender	Height of a character below the baseline, after taking the absolute value.
double capHeight	Height of an uppercase letter above the baseline.
double xHeight	Height of a lowercase letter, specifically the lowercase x, not including ascenders and descenders.
double width	Horizontal space taken up by a character.
double height	Line height.
double x	Distance from the left edge of the leftmost character to the left edge of the container. For left alignment, the value is 0. For right alignment, the value is the container width minus the text width.
double y	Height from the top edge of the character to the top of the container. The first line is 0, and the second line is the height of the first line.
size_t startIndex	Index of the first character in the line.
size_t endIndex	Index of the last character in the line.
OH_Drawing_Font_Metrics firstCharMetrics	Measurement information of the first character.