/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* * hggsate.h * Copyright (C) 2006-2011 Akira TAGOH * * Authors: * Akira TAGOH * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #if !defined (__HG_H_INSIDE__) && !defined (HG_COMPILATION) #error "Only can be included directly." #endif #ifndef __HIEROGLYPH_HGGSTATE_H__ #define __HIEROGLYPH_HGGSTATE_H__ #include #include HG_BEGIN_DECLS #define HG_GSTATE_INIT \ (hg_object_register(HG_TYPE_GSTATE, \ hg_object_gstate_get_vtable())) #define HG_IS_QGSTATE(_q_) \ (hg_quark_get_type((_q_)) == HG_TYPE_GSTATE) typedef struct _hg_gstate_t hg_gstate_t; typedef struct _hg_color_t hg_color_t; typedef enum _hg_color_mode_t hg_color_mode_t; typedef enum _hg_linecap_t hg_linecap_t; typedef enum _hg_linejoin_t hg_linejoin_t; enum _hg_color_mode_t { HG_COLOR_RGB, HG_COLOR_HSB, HG_COLOR_GRAY, }; enum _hg_linecap_t { HG_LINECAP_BUTT = 0, HG_LINECAP_ROUND, HG_LINECAP_SQUARE, HG_LINECAP_END }; enum _hg_linejoin_t { HG_LINEJOIN_MITER = 0, HG_LINEJOIN_ROUND, HG_LINEJOIN_BEVEL, HG_LINEJOIN_END }; struct _hg_color_t { hg_color_mode_t type; union { struct { hg_real_t red; hg_real_t green; hg_real_t blue; } rgb; struct { hg_real_t hue; hg_real_t saturation; hg_real_t brightness; } hsb; } is; }; struct _hg_gstate_t { hg_object_t o; hg_quark_t qpath; hg_quark_t qclippath; hg_quark_t qdashpattern; hg_matrix_t ctm; hg_color_t color; hg_linecap_t linecap; hg_linejoin_t linejoin; hg_real_t linewidth; hg_real_t miterlen; hg_real_t dash_offset; hg_bool_t is_snapshot:1; }; hg_object_vtable_t *hg_object_gstate_get_vtable(void) HG_GNUC_CONST; hg_quark_t hg_gstate_new (hg_mem_t *mem, hg_pointer_t *ret); void hg_gstate_set_ctm (hg_gstate_t *gstate, hg_matrix_t *matrix); void hg_gstate_get_ctm (hg_gstate_t *gstate, hg_matrix_t *matrix); hg_quark_t hg_gstate_get_path (hg_gstate_t *gstate); void hg_gstate_set_clippath (hg_gstate_t *gstate, hg_quark_t qpath); hg_quark_t hg_gstate_get_clippath (hg_gstate_t *gstate); void hg_gstate_set_rgbcolor (hg_gstate_t *gstate, hg_real_t red, hg_real_t green, hg_real_t blue); void hg_gstate_set_hsbcolor (hg_gstate_t *gstate, hg_real_t hue, hg_real_t saturation, hg_real_t brightness); void hg_gstate_set_graycolor (hg_gstate_t *gstate, hg_real_t gray); void hg_gstate_set_linewidth (hg_gstate_t *gstate, hg_real_t width); void hg_gstate_set_linecap (hg_gstate_t *gstate, hg_linecap_t linecap); void hg_gstate_set_linejoin (hg_gstate_t *gstate, hg_linejoin_t linejoin); hg_bool_t hg_gstate_set_miterlimit (hg_gstate_t *gstate, hg_real_t miterlen); hg_bool_t hg_gstate_set_dash (hg_gstate_t *gstate, hg_quark_t qpattern, hg_real_t offset); /** hg_path_t wrappers **/ hg_bool_t hg_gstate_newpath (hg_gstate_t *gstate); hg_bool_t hg_gstate_closepath (hg_gstate_t *gstate); hg_bool_t hg_gstate_moveto (hg_gstate_t *gstate, hg_real_t x, hg_real_t y); hg_bool_t hg_gstate_rmoveto (hg_gstate_t *gstate, hg_real_t rx, hg_real_t ry); hg_bool_t hg_gstate_lineto (hg_gstate_t *gstate, hg_real_t x, hg_real_t y); hg_bool_t hg_gstate_rlineto (hg_gstate_t *gstate, hg_real_t rx, hg_real_t ry); hg_bool_t hg_gstate_curveto (hg_gstate_t *gstate, hg_real_t x1, hg_real_t y1, hg_real_t x2, hg_real_t y2, hg_real_t x3, hg_real_t y3); hg_bool_t hg_gstate_rcurveto (hg_gstate_t *gstate, hg_real_t rx1, hg_real_t ry1, hg_real_t rx2, hg_real_t ry2, hg_real_t rx3, hg_real_t ry3); hg_bool_t hg_gstate_arc (hg_gstate_t *gstate, hg_real_t x, hg_real_t y, hg_real_t r, hg_real_t angle1, hg_real_t angle2); hg_bool_t hg_gstate_arcn (hg_gstate_t *gstate, hg_real_t x, hg_real_t y, hg_real_t r, hg_real_t angle1, hg_real_t angle2); hg_bool_t hg_gstate_arcto (hg_gstate_t *gstate, hg_real_t x1, hg_real_t y1, hg_real_t x2, hg_real_t y2, hg_real_t r, hg_real_t ret[4]); hg_bool_t hg_gstate_pathbbox (hg_gstate_t *gstate, hg_bool_t ignore_last_moveto, hg_path_bbox_t *bbox); hg_bool_t hg_gstate_initclip (hg_gstate_t *gstate); hg_bool_t hg_gstate_clippath (hg_gstate_t *gstate); hg_bool_t hg_gstate_get_current_point(hg_gstate_t *gstate, hg_real_t *x, hg_real_t *y); HG_END_DECLS #endif /* __HIEROGLYPH_HGGSTATE_H__ */