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textFont.h
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122 lines (94 loc) · 3.07 KB
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/**
* PANDA 3D SOFTWARE
* Copyright (c) Carnegie Mellon University. All rights reserved.
*
* All use of this software is subject to the terms of the revised BSD
* license. You should have received a copy of this license along
* with this source code in a file named "LICENSE."
*
* @file textFont.h
* @author drose
* @date 2002-02-08
*/
#ifndef TEXTFONT_H
#define TEXTFONT_H
#include "pandabase.h"
#include "textGlyph.h"
#include "typedReferenceCount.h"
#include "namable.h"
#include "pmap.h"
#include "pointerTo.h"
/**
* An encapsulation of a font; i.e. a set of glyphs that may be assembled
* together by a TextNode to represent a string of text.
*
* This is just an abstract interface; see StaticTextFont or DynamicTextFont
* for an actual implementation.
*/
class EXPCL_PANDA_TEXT TextFont : public TypedReferenceCount, public Namable {
public:
TextFont();
TextFont(const TextFont ©);
PUBLISHED:
virtual ~TextFont();
enum RenderMode {
// Each glyph is a single textured rectangle
RM_texture,
// Each glyph is a lot of line segments
RM_wireframe,
// Each glyph is a lot of triangles
RM_polygon,
// a 3-D outline, like a cookie cutter
RM_extruded,
// combination of RM_extruded and RM_polygon
RM_solid,
RM_distance_field,
// Returned by string_render_mode() for an invalid match.
RM_invalid,
};
virtual PT(TextFont) make_copy() const=0;
INLINE bool is_valid() const;
INLINE operator bool () const;
INLINE PN_stdfloat get_line_height() const;
INLINE void set_line_height(PN_stdfloat line_height);
MAKE_PROPERTY(valid, is_valid);
MAKE_PROPERTY(line_height, get_line_height, set_line_height);
INLINE PN_stdfloat get_space_advance() const;
INLINE void set_space_advance(PN_stdfloat space_advance);
MAKE_PROPERTY(space_advance, get_space_advance, set_space_advance);
INLINE CPT(TextGlyph) get_glyph(int character);
virtual PN_stdfloat get_kerning(int first, int second) const;
virtual void write(std::ostream &out, int indent_level) const;
public:
INLINE PN_stdfloat get_total_poly_margin() const;
virtual bool get_glyph(int character, CPT(TextGlyph) &glyph)=0;
TextGlyph *get_invalid_glyph();
static RenderMode string_render_mode(const std::string &string);
private:
void make_invalid_glyph();
protected:
bool _is_valid;
PN_stdfloat _line_height;
PN_stdfloat _space_advance;
PN_stdfloat _total_poly_margin;
PT(TextGlyph) _invalid_glyph;
public:
static TypeHandle get_class_type() {
return _type_handle;
}
static void init_type() {
TypedReferenceCount::init_type();
register_type(_type_handle, "TextFont",
TypedReferenceCount::get_class_type());
}
virtual TypeHandle get_type() const {
return get_class_type();
}
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
private:
static TypeHandle _type_handle;
};
EXPCL_PANDA_TEXT std::ostream &operator << (std::ostream &out, TextFont::RenderMode rm);
EXPCL_PANDA_TEXT std::istream &operator >> (std::istream &in, TextFont::RenderMode &rm);
#include "textFont.I"
#endif