diff options
Diffstat (limited to 'pango/pango-utils.c')
| -rw-r--r-- | pango/pango-utils.c | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/pango/pango-utils.c b/pango/pango-utils.c index 5094f083..70f32dbe 100644 --- a/pango/pango-utils.c +++ b/pango/pango-utils.c @@ -21,7 +21,6 @@ #include <config.h> #include <errno.h> -#include <math.h> #include <string.h> #include <stdlib.h> @@ -929,230 +928,6 @@ pango_parse_stretch (const char *str, return FALSE; } -GType -pango_matrix_get_type (void) -{ - static GType our_type = 0; - - if (our_type == 0) - our_type = g_boxed_type_register_static (I_("PangoMatrix"), - (GBoxedCopyFunc) pango_matrix_copy, - (GBoxedFreeFunc) pango_matrix_free); - - return our_type; -} - -/** - * pango_matrix_copy: - * @matrix: a #PangoMatrix, can be %NULL - * - * Copies a #PangoMatrix. - * - * Return value: the newly allocated #PangoMatrix, which should - * be freed with pango_matrix_free(), or %NULL if - * @matrix was %NULL. - * - * Since: 1.6 - **/ -PangoMatrix * -pango_matrix_copy (const PangoMatrix *matrix) -{ - PangoMatrix *new_matrix; - - if (matrix) - { - new_matrix = g_slice_new (PangoMatrix); - *new_matrix = *matrix; - } - else - new_matrix = NULL; - - return new_matrix; -} - -/** - * pango_matrix_free: - * @matrix: a #PangoMatrix, or %NULL - * - * Free a #PangoMatrix created with pango_matrix_copy(). - * Does nothing if @matrix is %NULL. - * - * Since: 1.6 - **/ -void -pango_matrix_free (PangoMatrix *matrix) -{ - if (matrix) - g_slice_free (PangoMatrix, matrix); -} - -/** - * pango_matrix_translate: - * @matrix: a #PangoMatrix - * @tx: amount to translate in the X direction - * @ty: amount to translate in the Y direction - * - * Changes the transformation represented by @matrix to be the - * transformation given by first translating by (@tx, @ty) - * then applying the original transformation. - * - * Since: 1.6 - **/ -void -pango_matrix_translate (PangoMatrix *matrix, - double tx, - double ty) -{ - g_return_if_fail (matrix != NULL); - - matrix->x0 = matrix->xx * tx + matrix->xy * ty + matrix->x0; - matrix->y0 = matrix->yx * tx + matrix->yy * ty + matrix->y0; -} - -/** - * pango_matrix_scale: - * @matrix: a #PangoMatrix - * @scale_x: amount to scale by in X direction - * @scale_y: amount to scale by in Y direction - * - * Changes the transformation represented by @matrix to be the - * transformation given by first scaling by @sx in the X direction - * and @sy in the Y direction then applying the original - * transformation. - * - * Since: 1.6 - **/ -void -pango_matrix_scale (PangoMatrix *matrix, - double scale_x, - double scale_y) -{ - g_return_if_fail (matrix != NULL); - - matrix->xx *= scale_x; - matrix->xy *= scale_y; - matrix->yx *= scale_x; - matrix->yy *= scale_y; -} - -/** - * pango_matrix_rotate: - * @matrix: a #PangoMatrix - * @degrees: degrees to rotate counter-clockwise - * - * Changes the transformation represented by @matrix to be the - * transformation given by first rotating by @degrees degrees - * counter-clokwise then applying the original transformation. - * - * Since: 1.6 - **/ -void -pango_matrix_rotate (PangoMatrix *matrix, - double degrees) -{ - PangoMatrix tmp; - gdouble r, s, c; - - g_return_if_fail (matrix != NULL); - - r = degrees * (G_PI / 180.); - s = sin (r); - c = cos (r); - - tmp.xx = c; - tmp.xy = s; - tmp.yx = -s; - tmp.yy = c; - tmp.x0 = 0; - tmp.y0 = 0; - - pango_matrix_concat (matrix, &tmp); -} - -/** - * pango_matrix_concat: - * @matrix: a #PangoMatrix - * @new_matrix: a #PangoMatrix - * - * Changes the transformation represented by @matrix to be the - * transformation given by first applying transformation - * given by @new_matrix then applying the original transformation. - * - * Since: 1.6 - **/ -void -pango_matrix_concat (PangoMatrix *matrix, - const PangoMatrix *new_matrix) -{ - PangoMatrix tmp; - - g_return_if_fail (matrix != NULL); - - tmp = *matrix; - - matrix->xx = tmp.xx * new_matrix->xx + tmp.xy * new_matrix->yx; - matrix->xy = tmp.xx * new_matrix->xy + tmp.xy * new_matrix->yy; - matrix->yx = tmp.yx * new_matrix->xx + tmp.yy * new_matrix->yx; - matrix->yy = tmp.yx * new_matrix->xy + tmp.yy * new_matrix->yy; - matrix->x0 = tmp.xx * new_matrix->x0 + tmp.xy * new_matrix->y0 + tmp.x0; - matrix->y0 = tmp.yx * new_matrix->y0 + tmp.yy * new_matrix->y0 + tmp.y0; -} - -/** - * pango_matrix_get_font_scale_factor: - * @matrix: a #PangoMatrix, may be %NULL - * - * Returns the scale factor of a matrix on the height of the font. - * That is, the scale factor in the direction perpendicular to the - * vector that the X coordinate is mapped to. - * - * Return value: the scale factor of @matrix on the height of the font, - * or 1.0 if @matrix is %NULL. - * - * Since: 1.12 - **/ -double -pango_matrix_get_font_scale_factor (const PangoMatrix *matrix) -{ -/* - * Based on cairo-matrix.c:_cairo_matrix_compute_scale_factors() - * - * Copyright 2005, Keith Packard - */ - double det; - - if (!matrix) - return 1.0; - - det = matrix->xx * matrix->yy - matrix->yx * matrix->xy; - - if (det == 0) - { - return 0.0; - } - else - { - double x = matrix->xx; - double y = matrix->yx; - double major, minor; - - major = sqrt (x*x + y*y); - - /* - * ignore mirroring - */ - if (det < 0) - det = - det; - - if (major) - minor = det / major; - else - minor = 0.0; - - return minor; - } -} - static const char canon_map[256] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |