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153 lines
3.9 KiB
153 lines
3.9 KiB
//---------------------------------------------------------------------------- |
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// Anti-Grain Geometry - Version 2.4 |
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// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com) |
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// |
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// Permission to copy, use, modify, sell and distribute this software |
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// is granted provided this copyright notice appears in all copies. |
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// This software is provided "as is" without express or implied |
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// warranty, and with no claim as to its suitability for any purpose. |
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// |
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//---------------------------------------------------------------------------- |
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// Contact: mcseem@antigrain.com |
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// mcseemagg@yahoo.com |
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// http://www.antigrain.com |
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//---------------------------------------------------------------------------- |
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// |
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// Class gsv_text |
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// |
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//---------------------------------------------------------------------------- |
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#ifndef AGG_GSV_TEXT_INCLUDED |
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#define AGG_GSV_TEXT_INCLUDED |
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#include "agg_array.h" |
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#include "agg_conv_stroke.h" |
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#include "agg_conv_transform.h" |
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namespace agg |
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{ |
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//---------------------------------------------------------------gsv_text |
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// |
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// See Implementation agg_gsv_text.cpp |
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// |
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class gsv_text |
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{ |
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enum status |
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{ |
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initial, |
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next_char, |
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start_glyph, |
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glyph |
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}; |
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public: |
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gsv_text(); |
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void font(const void* font); |
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void flip(bool flip_y) { m_flip = flip_y; } |
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void load_font(const char* file); |
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void size(double height, double width=0.0); |
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void space(double space); |
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void line_space(double line_space); |
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void start_point(double x, double y); |
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void text(const char* text); |
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double text_width(); |
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void rewind(unsigned path_id); |
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unsigned vertex(double* x, double* y); |
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private: |
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// not supposed to be copied |
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gsv_text(const gsv_text&); |
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const gsv_text& operator = (const gsv_text&); |
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int16u value(const int8u* p) const |
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{ |
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int16u v; |
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if(m_big_endian) |
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{ |
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*(int8u*)&v = p[1]; |
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*((int8u*)&v + 1) = p[0]; |
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} |
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else |
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{ |
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*(int8u*)&v = p[0]; |
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*((int8u*)&v + 1) = p[1]; |
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} |
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return v; |
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} |
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private: |
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double m_x; |
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double m_y; |
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double m_start_x; |
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double m_width; |
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double m_height; |
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double m_space; |
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double m_line_space; |
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char m_chr[2]; |
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char* m_text; |
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pod_array<char> m_text_buf; |
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char* m_cur_chr; |
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const void* m_font; |
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pod_array<char> m_loaded_font; |
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status m_status; |
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bool m_big_endian; |
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bool m_flip; |
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int8u* m_indices; |
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int8* m_glyphs; |
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int8* m_bglyph; |
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int8* m_eglyph; |
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double m_w; |
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double m_h; |
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}; |
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//--------------------------------------------------------gsv_text_outline |
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template<class Transformer = trans_affine> class gsv_text_outline |
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{ |
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public: |
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gsv_text_outline(gsv_text& text, Transformer& trans) : |
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m_polyline(text), |
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m_trans(m_polyline, trans) |
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{ |
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} |
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void width(double w) |
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{ |
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m_polyline.width(w); |
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} |
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void transformer(const Transformer* trans) |
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{ |
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m_trans->transformer(trans); |
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} |
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void rewind(unsigned path_id) |
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{ |
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m_trans.rewind(path_id); |
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m_polyline.line_join(round_join); |
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m_polyline.line_cap(round_cap); |
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} |
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unsigned vertex(double* x, double* y) |
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{ |
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return m_trans.vertex(x, y); |
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} |
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private: |
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conv_stroke<gsv_text> m_polyline; |
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conv_transform<conv_stroke<gsv_text>, Transformer> m_trans; |
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}; |
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} |
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#endif
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