diff options
Diffstat (limited to 'pango')
| -rw-r--r-- | pango/pango-utils.c | 128 |
1 files changed, 60 insertions, 68 deletions
diff --git a/pango/pango-utils.c b/pango/pango-utils.c index abc1c112..5283da35 100644 --- a/pango/pango-utils.c +++ b/pango/pango-utils.c @@ -19,24 +19,6 @@ * Boston, MA 02111-1307, USA. */ -/** - * SECTION:pango-version - * @short_description:Tools for checking Pango version at compile- and run-time. - * @title:Version Checking - * - * The capital-letter macros defined here can be used to check the version of Pango - * at compile-time, and to *encode* Pango versions into integers. - * - * The functions can be used to check the version of the linked Pango library at run-time. - */ -/** - * SECTION:utils - * @short_description:Various convenience and utility functions - * @title: Miscellaneous Utilities - * - * The functions and utilities in this section are mostly used from Pango - * backends and modules, but may be useful for other purposes too. - */ #include "config.h" #include <errno.h> #include <string.h> @@ -70,15 +52,13 @@ /** * pango_version: * - * This is similar to the macro %PANGO_VERSION except that - * it returns the encoded version of Pango available at run-time, - * as opposed to the version available at compile-time. + * Returns the encoded version of Pango available at run-time. * - * A version number can be encoded into an integer using - * PANGO_VERSION_ENCODE(). + * This is similar to the macro %PANGO_VERSION except that the macro + * returns the encoded version available at compile-time. A version + * number can be encoded into an integer using PANGO_VERSION_ENCODE(). * - * Returns: The encoded version of Pango library - * available at run time. + * Returns: The encoded version of Pango library available at run time. * * Since: 1.16 **/ @@ -91,14 +71,14 @@ pango_version (void) /** * pango_version_string: * - * This is similar to the macro %PANGO_VERSION_STRING except that - * it returns the version of Pango available at run-time, as opposed to - * the version available at compile-time. + * Returns the version of Pango available at run-time. + * + * This is similar to the macro %PANGO_VERSION_STRING except that the + * macro returns the version available at compile-time. * - * Returns: A string containing the version of Pango library - * available at run time. - * The returned string is owned by Pango and should not be modified - * or freed. + * Returns: A string containing the version of Pango library available + * at run time. The returned string is owned by Pango and should not + * be modified or freed. * * Since: 1.16 **/ @@ -115,11 +95,13 @@ pango_version_string (void) * @required_micro: the required major version. * * Checks that the Pango library in use is compatible with the - * given version. Generally you would pass in the constants - * %PANGO_VERSION_MAJOR, %PANGO_VERSION_MINOR, %PANGO_VERSION_MICRO - * as the three arguments to this function; that produces - * a check that the library in use at run-time is compatible with - * the version of Pango the application or module was compiled against. + * given version. + * + * Generally you would pass in the constants %PANGO_VERSION_MAJOR, + * %PANGO_VERSION_MINOR, %PANGO_VERSION_MICRO as the three arguments + * to this function; that produces a check that the library in use at + * run-time is compatible with the version of Pango the application or + * module was compiled against. * * Compatibility is defined by two things: first the version * of the running library is newer than the version @@ -258,17 +240,18 @@ pango_split_file_list (const char *str) * @stream: a stdio stream * @str: #GString buffer into which to write the result * - * Reads an entire line from a file into a buffer. Lines may - * be delimited with '\n', '\r', '\n\r', or '\r\n'. The delimiter + * Reads an entire line from a file into a buffer. + * + * Lines may be delimited with '\n', '\r', '\n\r', or '\r\n'. The delimiter * is not written into the buffer. Text after a '#' character is treated as * a comment and skipped. '\' can be used to escape a # character. * '\' proceeding a line delimiter combines adjacent lines. A '\' proceeding * any other character is ignored and written into the output buffer * unmodified. * - * Return value: 0 if the stream was already at an %EOF character, otherwise - * the number of lines read (this is useful for maintaining - * a line number counter which doesn't combine lines with '\') + * Return value: 0 if the stream was already at an %EOF character, + * otherwise the number of lines read (this is useful for maintaining + * a line number counter which doesn't combine lines with '\') * * Deprecated: 1.38 **/ @@ -394,9 +377,10 @@ pango_skip_space (const char **pos) * @pos: (inout): in/out string position * @out: a #GString into which to write the result * - * Scans a word into a #GString buffer. A word consists - * of [A-Za-z_] followed by zero or more [A-Za-z_0-9] - * Leading white space is skipped. + * Scans a word into a #GString buffer. + * + * A word consists of [A-Za-z_] followed by zero or more + * [A-Za-z_0-9]. Leading white space is skipped. * * Return value: %FALSE if a parse error occurred. * @@ -438,9 +422,10 @@ pango_scan_word (const char **pos, GString *out) * @pos: (inout): in/out string position * @out: a #GString into which to write the result * - * Scans a string into a #GString buffer. The string may either - * be a sequence of non-white-space characters, or a quoted - * string with '"'. Instead a quoted string, '\"' represents + * Scans a string into a #GString buffer. + * + * The string may either be a sequence of non-white-space characters, + * or a quoted string with '"'. Instead a quoted string, '\"' represents * a literal quote. Leading white space outside of quotes is skipped. * * Return value: %FALSE if a parse error occurred. @@ -531,6 +516,7 @@ pango_scan_string (const char **pos, GString *out) * @out: (out): an int into which to write the result * * Scans an integer. + * * Leading white space is skipped. * * Return value: %FALSE if a parse error occurred. @@ -842,6 +828,7 @@ pango_parse_flags (GType type, * @n_families: (out): will be set to the length of the @families array. * * Look up all user defined aliases for the alias @fontname. + * * The resulting font family names will be stored in @families, * and the number of families in @n_families. * @@ -903,11 +890,11 @@ pango_find_base_dir (const gchar *text, * pango_is_zero_width: * @ch: a Unicode character * - * Checks @ch to see if it is a character that should not be - * normally rendered on the screen. This includes all Unicode characters - * with "ZERO WIDTH" in their name, as well as *bidi* formatting characters, and - * a few other ones. This is totally different from g_unichar_iszerowidth() - * and is at best misnamed. + * Checks if a character that should not be normally rendered. + * + * This includes all Unicode characters with "ZERO WIDTH" in their name, + * as well as *bidi* formatting characters, and a few other ones. This is + * totally different from g_unichar_iszerowidth() and is at best misnamed. * * Return value: %TRUE if @ch is a zero-width character, %FALSE otherwise * @@ -957,10 +944,10 @@ pango_is_zero_width (gunichar ch) * @thickness: (inout): pointer to the thickness of a line, in Pango units * @position: (inout): corresponding position * - * Quantizes the thickness and position of a line, typically an - * underline or strikethrough, to whole device pixels, that is integer - * multiples of %PANGO_SCALE. The purpose of this function is to avoid - * such lines looking blurry. + * Quantizes the thickness and position of a line to whole device pixels. + * + * This is typically used for underline or strikethrough. The purpose of + * this function is to avoid such lines looking blurry. * * Care is taken to make sure @thickness is at least one pixel when this * function returns, but returned @position may become zero as a result @@ -994,8 +981,10 @@ pango_quantize_line_geometry (int *thickness, * pango_units_from_double: * @d: double floating-point value * - * Converts a floating-point number to Pango units: multiplies - * it by %PANGO_SCALE and rounds to nearest integer. + * Converts a floating-point number to Pango units. + * + * The conversion is done by multiplying @d by %PANGO_SCALE and + * rounding the result to nearest integer. * * Return value: the value in Pango units. * @@ -1011,8 +1000,9 @@ pango_units_from_double (double d) * pango_units_to_double: * @i: value in Pango units * - * Converts a number in Pango units to floating-point: divides - * it by %PANGO_SCALE. + * Converts a number in Pango units to floating-point. + * + * The conversion is done by dividing @i by %PANGO_SCALE. * * Return value: the double value. * @@ -1029,19 +1019,21 @@ pango_units_to_double (int i) * @inclusive: (allow-none): rectangle to round to pixels inclusively, or %NULL. * @nearest: (allow-none): rectangle to round to nearest pixels, or %NULL. * - * Converts extents from Pango units to device units, dividing by the - * %PANGO_SCALE factor and performing rounding. + * Converts extents from Pango units to device units. + * + * The conversion is done by dividing by the %PANGO_SCALE factor and + * performing rounding. * - * The @inclusive rectangle is converted by flooring the x/y coordinates and extending - * width/height, such that the final rectangle completely includes the original - * rectangle. + * The @inclusive rectangle is converted by flooring the x/y coordinates + * and extending width/height, such that the final rectangle completely + * includes the original rectangle. * * The @nearest rectangle is converted by rounding the coordinates * of the rectangle to the nearest device unit (pixel). * * The rule to which argument to use is: if you want the resulting device-space - * rectangle to completely contain the original rectangle, pass it in as @inclusive. - * If you want two touching-but-not-overlapping rectangles stay + * rectangle to completely contain the original rectangle, pass it in as + * @inclusive. If you want two touching-but-not-overlapping rectangles stay * touching-but-not-overlapping after rounding to device units, pass them in * as @nearest. * |