From b25c32393d42c314c073ef2244cde1fabb7b64af Mon Sep 17 00:00:00 2001 From: Diego Borghetti Date: Thu, 9 Dec 2010 04:36:58 +0000 Subject: Add the possibility to set a 4x4 matrix to be used on blf. This option allow the user to set a 4x4 matrix to be multiplied before draw the text, for example: double *m; /* Get the matrix or build it! */ BLF_matrix(m); BLF_enable(BLF_MATRIX); /* set color, size, etc and draw! */ BLF_disable(BLF_MATRIX); You don't need the last line (disable), but remember that if you use the font to draw in any other place, the matrix will be used!. The GL code is: glPushMatrix(); glMultMatrixd(m); glTranslatef(); glScalef(); glRotatef(); glPopMatrix(); Let's Dalai test this!!! :D --- source/blender/blenfont/BLF_api.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'source/blender/blenfont/BLF_api.h') diff --git a/source/blender/blenfont/BLF_api.h b/source/blender/blenfont/BLF_api.h index d32922f2429..84086742b15 100644 --- a/source/blender/blenfont/BLF_api.h +++ b/source/blender/blenfont/BLF_api.h @@ -49,6 +49,20 @@ void BLF_aspect(int fontid, float aspect); void BLF_position(int fontid, float x, float y, float z); void BLF_size(int fontid, int size, int dpi); +/* Set a 4x4 matrix to be multiplied before draw the text. + * Remember that you need call BLF_enable(BLF_MATRIX) + * to enable this. + * + * The order of the matrix is like GL: + + | m[0] m[4] m[8] m[12] | + | m[1] m[5] m[9] m[13] | + | m[2] m[6] m[10] m[14] | + | m[3] m[7] m[11] m[15] | + + */ +void BLF_matrix(int fontid, double *m); + /* Draw the string using the default font, size and dpi. */ void BLF_draw_default(float x, float y, float z, const char *str, size_t len); void BLF_draw_default_ascii(float x, float y, float z, const char *str, size_t len); @@ -180,6 +194,7 @@ void BLF_dir_free(char **dirs, int count); #define BLF_CLIPPING (1<<1) #define BLF_SHADOW (1<<2) #define BLF_KERNING_DEFAULT (1<<3) +#define BLF_MATRIX (1<<4) // XXX, bad design extern int blf_mono_font; -- cgit v1.2.3