241 lines
7.8 KiB
C++
241 lines
7.8 KiB
C++
// Filename: textFont.cxx
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// Created by: drose (08Feb02)
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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) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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#include "textFont.h"
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#include "config_text.h"
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#include "string_utils.h"
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#include "geomVertexData.h"
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#include "geomVertexFormat.h"
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#include "geomVertexWriter.h"
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#include "geomLinestrips.h"
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#include "geom.h"
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#include <ctype.h>
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TypeHandle TextFont::_type_handle;
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////////////////////////////////////////////////////////////////////
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// Function: TextFont::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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TextFont::
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TextFont() {
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_is_valid = false;
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_line_height = 1.0f;
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_space_advance = 0.25f;
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}
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////////////////////////////////////////////////////////////////////
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// Function: TextFont::Copy Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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TextFont::
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TextFont(const TextFont ©) :
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Namable(copy),
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_is_valid(copy._is_valid),
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_line_height(copy._line_height),
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_space_advance(copy._space_advance)
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{
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}
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////////////////////////////////////////////////////////////////////
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// Function: TextFont::Destructor
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// Access: Published, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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TextFont::
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~TextFont() {
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}
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////////////////////////////////////////////////////////////////////
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// Function: TextFont::write
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// Access: Published, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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void TextFont::
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write(ostream &out, int indent_level) const {
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indent(out, indent_level)
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<< "TextFont " << get_name() << "\n";
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}
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////////////////////////////////////////////////////////////////////
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// Function: TextFont::get_invalid_glyph
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// Access: Public
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// Description: Returns a special glyph that can be used as a
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// placeholder for any character not in the font. Note
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// that it is not guaranteed that a font will return
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// this particular glyph for a missing character (it may
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// return a glyph of its own devising instead).
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//
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// Also note that even if a particular accented letter
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// is missing from the font, Panda may still be able to
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// render a suitable replacement by composing different
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// glyphs together to simulate accent marks; this
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// happens automatically behind the scenes.
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////////////////////////////////////////////////////////////////////
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TextGlyph *TextFont::
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get_invalid_glyph() {
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if (_invalid_glyph == (TextGlyph *)NULL) {
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make_invalid_glyph();
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}
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return _invalid_glyph;
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}
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////////////////////////////////////////////////////////////////////
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// Function: TextFont::string_render_mode
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// Access: Public
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// Description: Returns the RenderMode value associated with the given
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// string representation, or RM_invalid if the string
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// does not match any known RenderMode value.
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////////////////////////////////////////////////////////////////////
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TextFont::RenderMode TextFont::
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string_render_mode(const string &string) {
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if (cmp_nocase_uh(string, "texture") == 0) {
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return RM_texture;
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} else if (cmp_nocase_uh(string, "wireframe") == 0) {
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return RM_wireframe;
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} else if (cmp_nocase_uh(string, "polygon") == 0) {
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return RM_polygon;
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} else if (cmp_nocase_uh(string, "extruded") == 0) {
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return RM_extruded;
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} else if (cmp_nocase_uh(string, "solid") == 0) {
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return RM_solid;
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} else {
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return RM_invalid;
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: TextFont::string_winding_order
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// Access: Public
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// Description: Returns the WindingOrder value associated with the given
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// string representation, or WO_invalid if the string
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// does not match any known WindingOrder value.
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////////////////////////////////////////////////////////////////////
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TextFont::WindingOrder TextFont::
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string_winding_order(const string &string) {
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if (cmp_nocase_uh(string, "default") == 0) {
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return WO_default;
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} else if (cmp_nocase_uh(string, "left") == 0) {
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return WO_left;
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} else if (cmp_nocase_uh(string, "right") == 0) {
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return WO_right;
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} else {
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return WO_invalid;
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: TextFont::make_invalid_glyph
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// Access: Private
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// Description: Constructs the special glyph used to represent a
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// character not in the font.
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////////////////////////////////////////////////////////////////////
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void TextFont::
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make_invalid_glyph() {
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CPT(GeomVertexFormat) vformat = GeomVertexFormat::get_v3();
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PT(GeomVertexData) vdata =
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new GeomVertexData("invalid_glyph", vformat, GeomEnums::UH_static);
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GeomVertexWriter vertex(vdata, InternalName::get_vertex());
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vertex.add_data3(_line_height * 0.2, 0.0f, _line_height * 0.1f);
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vertex.add_data3(_line_height * 0.5f, 0.0f, _line_height * 0.1f);
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vertex.add_data3(_line_height * 0.5f, 0.0f, _line_height * 0.7f);
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vertex.add_data3(_line_height * 0.2, 0.0f, _line_height * 0.7f);
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PT(GeomPrimitive) prim = new GeomLinestrips(GeomEnums::UH_static);
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prim->add_consecutive_vertices(0, 4);
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prim->add_vertex(0);
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prim->close_primitive();
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PT(Geom) geom = new Geom(vdata);
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geom->add_primitive(prim);
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_invalid_glyph = new TextGlyph(0, geom, RenderState::make_empty(),
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_line_height * 0.7f);
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}
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////////////////////////////////////////////////////////////////////
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// Function: TextFont::RenderMode output operator
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// Description:
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////////////////////////////////////////////////////////////////////
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ostream &
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operator << (ostream &out, TextFont::RenderMode rm) {
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switch (rm) {
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case TextFont::RM_texture:
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return out << "texture";
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case TextFont::RM_wireframe:
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return out << "wireframe";
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case TextFont::RM_polygon:
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return out << "polygon";
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case TextFont::RM_extruded:
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return out << "extruded";
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case TextFont::RM_solid:
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return out << "solid";
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case TextFont::RM_invalid:
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return out << "invalid";
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}
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return out << "(**invalid TextFont::RenderMode(" << (int)rm << ")**)";
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}
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////////////////////////////////////////////////////////////////////
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// Function: TextFont::RenderMode input operator
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// Description:
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////////////////////////////////////////////////////////////////////
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istream &
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operator >> (istream &in, TextFont::RenderMode &rm) {
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string word;
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in >> word;
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rm = TextFont::string_render_mode(word);
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return in;
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}
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////////////////////////////////////////////////////////////////////
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// Function: TextFont::WindingOrder output operator
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// Description:
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////////////////////////////////////////////////////////////////////
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ostream &
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operator << (ostream &out, TextFont::WindingOrder wo) {
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switch (wo) {
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case TextFont::WO_default:
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return out << "default";
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case TextFont::WO_left:
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return out << "left";
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case TextFont::WO_right:
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return out << "right";
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case TextFont::WO_invalid:
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return out << "invalid";
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}
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return out << "(**invalid TextFont::WindingOrder(" << (int)wo << ")**)";
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}
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////////////////////////////////////////////////////////////////////
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// Function: TextFont::WindingOrder input operator
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// Description:
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////////////////////////////////////////////////////////////////////
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istream &
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operator >> (istream &in, TextFont::WindingOrder &wo) {
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string word;
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in >> word;
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wo = TextFont::string_winding_order(word);
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return in;
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}
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