sway/include/pango.h
Ryan Dwyer 10ef118e09 Fix pango escaping and refactor escape_markup_text
Fixes #2674.

The cause of the issue was in get_pango_layout. When we call
pango_parse_markup, `text` is the escaped string, and the unescaped
string is then computed and written to `buf`. We were then passing the
unescaped string to pango_layout_set_markup, but this function needs the
escaped string. `buf` is not needed and has been removed.

The other part of this PR refactors escape_markup_text to remove the
dest_length argument and removes the -1 return value on error. It now
assumes that you've allocated dest to the correct length.
2018-09-22 18:33:28 +10:00

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C

#ifndef _SWAY_PANGO_H
#define _SWAY_PANGO_H
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <cairo/cairo.h>
#include <pango/pangocairo.h>
/**
* Utility function which escape characters a & < > ' ".
*
* The function returns the length of the escaped string, optionally writing the
* escaped string to dest if provided.
*/
size_t escape_markup_text(const char *src, char *dest);
PangoLayout *get_pango_layout(cairo_t *cairo, const char *font,
const char *text, double scale, bool markup);
void get_text_size(cairo_t *cairo, const char *font, int *width, int *height,
int *baseline, double scale, bool markup, const char *fmt, ...);
void pango_printf(cairo_t *cairo, const char *font,
double scale, bool markup, const char *fmt, ...);
#endif