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panda/src/text/qptextNode.I
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panda/src/text/qptextNode.I
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panda/src/text/qptextNode.cxx
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panda/src/text/qptextNode.cxx
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panda/src/text/qptextNode.h
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panda/src/text/qptextNode.h
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// Filename: qptextNode.h
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// Created by: drose (13Mar02)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef qpTEXTNODE_H
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#define qpTEXTNODE_H
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#include "pandabase.h"
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#include "config_text.h"
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#include "textFont.h"
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#include "pandaNode.h"
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#include "luse.h"
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class StringDecoder;
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////////////////////////////////////////////////////////////////////
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// Class : TextNode
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// Description : The primary interface to this module. This class
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// does basic text assembly; given a string of text and
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// a TextFont object, it creates a piece of geometry
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// that may be placed in the 3-d or 2-d world to
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// represent the indicated text.
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//
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// The TextNode may be used in one of two ways.
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// Naively, it may be parented to the scene graph
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// directly; used in this way, you can optionally call
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// freeze() and thaw() between changing many parameters
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// in the text at once, to avoid unnecessary expensive
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// regeneration with each parameter change. However, it
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// will work, if slowly, even if you never call freeze()
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// and thaw().
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//
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// The second way TextNode may be used is as a text
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// generator. To use it in this way, call freeze() once
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// on the TextNode when you create it, and never call
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// thaw(). Do not parent the TextNode to the scene
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// graph; instea, set the properties of the text and
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// call generate() to return a node which you may parent
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// wherever you like. Each time you call generate() a
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// new node is returned.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA qpTextNode : public PandaNode {
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PUBLISHED:
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qpTextNode(const string &name);
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~qpTextNode();
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enum Alignment {
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A_left,
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A_right,
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A_center,
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};
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enum Encoding {
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E_iso8859,
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E_utf8,
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E_unicode
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};
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INLINE int freeze();
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INLINE int get_freeze_level() const;
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INLINE int thaw();
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INLINE void set_font(TextFont *font);
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INLINE TextFont *get_font() const;
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INLINE void set_encoding(Encoding encoding);
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INLINE Encoding get_encoding() const;
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INLINE void set_expand_amp(bool expand_amp);
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INLINE bool get_expand_amp() const;
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INLINE float get_line_height() const;
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INLINE void set_slant(float slant);
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INLINE float get_slant() const;
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INLINE void set_align(Alignment align_type);
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INLINE Alignment get_align() const;
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INLINE void set_wordwrap(float width);
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INLINE void clear_wordwrap();
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INLINE bool has_wordwrap() const;
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INLINE float get_wordwrap() const;
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INLINE void set_text_color(float r, float g, float b, float a);
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INLINE void set_text_color(const Colorf &text_color);
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INLINE void clear_text_color();
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INLINE bool has_text_color() const;
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INLINE Colorf get_text_color() const;
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INLINE void set_frame_color(float r, float g, float b, float a);
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INLINE void set_frame_color(const Colorf &frame_color);
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INLINE Colorf get_frame_color() const;
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INLINE void set_card_border(float size, float uv_portion);
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INLINE void clear_card_border();
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INLINE float get_card_border_size() const;
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INLINE float get_card_border_uv_portion() const;
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INLINE bool has_card_border() const;
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INLINE void set_card_color(float r, float g, float b, float a);
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INLINE void set_card_color(const Colorf &card_color);
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INLINE Colorf get_card_color() const;
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INLINE void set_card_texture(Texture *card_texture);
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INLINE void clear_card_texture();
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INLINE bool has_card_texture() const;
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INLINE Texture *get_card_texture() const;
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INLINE void set_shadow_color(float r, float g, float b, float a);
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INLINE void set_shadow_color(const Colorf &shadow_color);
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INLINE Colorf get_shadow_color() const;
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INLINE void set_frame_as_margin(float left, float right,
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float bottom, float top);
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INLINE void set_frame_actual(float left, float right,
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float bottom, float top);
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INLINE void clear_frame();
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INLINE bool has_frame() const;
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INLINE bool is_frame_as_margin() const;
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INLINE LVecBase4f get_frame_as_set() const;
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INLINE LVecBase4f get_frame_actual() const;
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INLINE void set_frame_line_width(float line_width);
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INLINE float get_frame_line_width() const;
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INLINE void set_frame_corners(bool corners);
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INLINE bool get_frame_corners() const;
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INLINE void set_card_as_margin(float left, float right,
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float bottom, float top);
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INLINE void set_card_actual(float left, float right,
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float bottom, float top);
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INLINE void clear_card();
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INLINE bool has_card() const;
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INLINE bool is_card_as_margin() const;
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INLINE LVecBase4f get_card_as_set() const;
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INLINE LVecBase4f get_card_actual() const;
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INLINE LVecBase4f get_card_transformed() const;
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INLINE void set_shadow(float xoffset, float yoffset);
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INLINE void clear_shadow();
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INLINE bool has_shadow() const;
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INLINE LVecBase2f get_shadow() const;
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INLINE void set_bin(const string &bin);
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INLINE void clear_bin();
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INLINE bool has_bin() const;
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INLINE const string &get_bin() const;
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INLINE int set_draw_order(int draw_order);
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INLINE int get_draw_order() const;
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INLINE void set_transform(const LMatrix4f &transform);
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INLINE LMatrix4f get_transform() const;
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INLINE void set_coordinate_system(CoordinateSystem cs);
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INLINE CoordinateSystem get_coordinate_system() const;
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INLINE void set_text(const string &text);
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INLINE void clear_text();
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INLINE bool has_text() const;
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INLINE string get_text() const;
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INLINE float calc_width(int character) const;
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INLINE float calc_width(const string &line) const;
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string wordwrap_to(const string &text, float wordwrap_width,
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bool preserve_trailing_whitespace) const;
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virtual void write(ostream &out, int indent_level = 0) const;
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INLINE void rebuild(bool needs_measure);
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INLINE void measure();
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// The following functions return information about the text that
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// was last built (and is currently visible).
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INLINE float get_left() const;
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INLINE float get_right() const;
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INLINE float get_bottom() const;
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INLINE float get_top() const;
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INLINE float get_height() const;
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INLINE float get_width() const;
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INLINE LPoint3f get_upper_left_3d() const;
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INLINE LPoint3f get_lower_right_3d() const;
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INLINE int get_num_rows() const;
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PT(PandaNode) generate();
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public:
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// Direct support for wide-character strings.
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INLINE void set_wtext(const wstring &wtext);
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INLINE const wstring &get_wtext() const;
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INLINE float calc_width(const wstring &line) const;
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INLINE wstring wordwrap_to(const wstring &wtext, float wordwrap_width,
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bool preserve_trailing_whitespace) const;
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string encode_wchar(wchar_t ch) const;
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string encode_wtext(const wstring &wtext) const;
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wstring decode_text(const string &text) const;
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private:
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wstring decode_text_impl(StringDecoder &decoder) const;
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int expand_amp_sequence(StringDecoder &decoder) const;
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void do_rebuild();
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void do_measure();
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#ifndef CPPPARSER // interrogate has a bit of trouble with wstring.
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float assemble_row(wstring::iterator &si, const wstring::iterator &send,
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PandaNode *dest);
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PT(PandaNode) assemble_text(wstring::iterator si, const wstring::iterator &send,
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LVector2f &ul, LVector2f &lr, int &num_rows);
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float measure_row(wstring::iterator &si, const wstring::iterator &send);
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void measure_text(wstring::iterator si, const wstring::iterator &send,
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LVector2f &ul, LVector2f &lr, int &num_rows);
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#endif // CPPPARSER
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PT(PandaNode) make_frame();
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PT(PandaNode) make_card();
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PT(PandaNode) make_card_with_border();
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PT(TextFont) _font;
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Encoding _encoding;
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float _slant;
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PT(Texture) _card_texture;
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Colorf _text_color;
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Colorf _shadow_color;
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Colorf _frame_color;
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Colorf _card_color;
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enum Flags {
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F_has_text_color = 0x0001,
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F_has_wordwrap = 0x0002,
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F_has_frame = 0x0004,
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F_frame_as_margin = 0x0008,
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F_has_card = 0x0010,
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F_card_as_margin = 0x0020,
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F_has_card_texture = 0x0040,
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F_has_shadow = 0x0080,
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F_frame_corners = 0x0100,
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F_card_transp = 0x0200,
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F_has_card_border = 0x0400,
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F_expand_amp = 0x0800,
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};
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int _flags;
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Alignment _align;
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float _wordwrap_width;
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float _frame_width;
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float _card_border_size;
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float _card_border_uv_portion;
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LVector2f _frame_ul, _frame_lr;
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LVector2f _card_ul, _card_lr;
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LVector2f _shadow_offset;
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string _bin;
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int _draw_order;
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LMatrix4f _transform;
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CoordinateSystem _coordinate_system;
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string _text;
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wstring _wtext;
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LPoint2f _ul2d, _lr2d;
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LPoint3f _ul3d, _lr3d;
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int _num_rows;
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int _freeze_level;
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bool _needs_rebuild;
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public:
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static Encoding _default_encoding;
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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PandaNode::init_type();
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register_type(_type_handle, "qpTextNode",
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PandaNode::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "qptextNode.I"
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#endif
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