153 lines
3.9 KiB
C++
153 lines
3.9 KiB
C++
//----------------------------------------------------------------------------
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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, const 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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