Rework the cairo_matrix_t interface in several ways. Expose a struct for cairo_matrix_t.

Add new function to return current matrix: cairo_get_matrix
Deprecate the following functions (in documentation): cairo_matrix_create cairo_matrix_destroy cairo_matrix_get_affine
Rename: cairo_matrix_set_affine -> cairo_matrix_init cairo_matrix_set_identity -> cairo_matrix_init_identity
Add other new matrix initialization functions: cairo_matrix_init_translate cairo_matrix_init_scale cairo_matrix_init_rotate
Change return type of almost all cairo_matrix functions from cairo_status_t to void.
Track changes to cairo_matrix_t interface.
Add a test case showing the same path drawn under various transforms, (including skews set directly by initializing a cairo_matrix_t).

1 files changed, 2 insertions, 2 deletions

diff --git a/src/cairo-pen.c b/src/cairo-pen.c
index 300d6e932..18b9ddb59 100644
--- a/src/cairo-pen.c
+++ b/src/cairo-pen.c
@@ -374,8 +374,8 @@ _cairo_pen_vertices_needed (double	    tolerance,
 			    double	    radius,
 			    cairo_matrix_t  *matrix)
 {
-    double  a = matrix->m[0][0],   c = matrix->m[0][1];
-    double  b = matrix->m[1][0],   d = matrix->m[1][1];
+    double  a = matrix->xx, b = matrix->yx;
+    double  c = matrix->xy, d = matrix->yy;
 
     double  i = a*a + c*c;
     double  j = b*b + d*d;