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- // -*- c++ -*-
- // Generated by gtkmmproc -- DO NOT MODIFY!
- #ifndef _PANGOMM_GLYPHSTRING_H
- #define _PANGOMM_GLYPHSTRING_H
-
- #include <glibmm.h>
-
- /* $Id: glyphstring.hg,v 1.1.1.1 2003/01/21 13:41:05 murrayc Exp $ */
-
- /* glyphstring.h
- *
- * Copyright (C) 1998-1999 The gtkmm Development Team
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- #include <pangomm/font.h>
- #include <pangomm/glyph.h>
- #include <pangomm/item.h>
- #include <pango/pango-glyph.h>
- #include <pango/pango-item.h> //For PangoAnalysis.
-
-
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
- extern "C" { typedef struct _PangoGlyphString PangoGlyphString; }
- #endif
-
- namespace Pango
- {
-
- /** A Pango::GlyphString is used to store strings of glyphs with geometry and visual attribute information.
- * It can be measured or drawn to the screen.
- */
- class GlyphString
- {
- public:
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
- typedef GlyphString CppObjectType;
- typedef PangoGlyphString BaseObjectType;
-
- static GType get_type() G_GNUC_CONST;
- #endif /* DOXYGEN_SHOULD_SKIP_THIS */
-
- GlyphString();
-
- explicit GlyphString(PangoGlyphString* gobject, bool make_a_copy = true);
-
- GlyphString(const GlyphString& other);
- GlyphString& operator=(const GlyphString& other);
-
- ~GlyphString();
-
- void swap(GlyphString& other);
-
- ///Provides access to the underlying C instance.
- PangoGlyphString* gobj() { return gobject_; }
-
- ///Provides access to the underlying C instance.
- const PangoGlyphString* gobj() const { return gobject_; }
-
- ///Provides access to the underlying C instance. The caller is responsible for freeing it. Use when directly setting fields in structs.
- PangoGlyphString* gobj_copy() const;
-
- protected:
- PangoGlyphString* gobject_;
-
- private:
-
-
- public:
- /** Construct a string of glyphs from a string of characters.
- * Given a segment of text and the corresponding Pango::Analysis structure
- * returned from Pango::Context::itemize(), convert the characters into glyphs.
- * You may also pass in only a sub-string of the item.
- * @param text The text to process. You must pass the same string into those member functions expecting a const Glib::ustring&.
- * @param analysis The analysis information return from Pango::Context::itemize().
- */
- GlyphString(const Glib::ustring& text, const Analysis& analysis);
-
-
- /** Resize a glyph string to the given length.
- * @param new_len The new length of the string.
- */
- void set_size (int new_len);
-
-
- /** Compute the logical and ink extents of a glyph string. See the documentation
- * for Pango::Font::get_glyph_extents() for details about the interpretation
- * of the rectangles.
- * @param font A Pango::Font.
- * @param ink_rect Rectangle used to store the extents of the glyph string as drawn.
- * @param logical_rect Rectangle used to store the logical extents of the glyph string.
- */
- void get_extents(const Glib::RefPtr<const Font>& font, Rectangle& ink_rect, Rectangle& logical_rect) const;
-
- /** Computes the extents of a sub-portion of a glyph string. The extents are
- * relative to the start of the glyph string range (the origin of their
- * coordinate system is at the start of the range, not at the start of the entire
- * glyph string).
- * @param start Start index.
- * @param end End index (the range is the set of bytes with
- * indices such that start <= index < end).
- * @param font A Pango::Font.
- * @param ink_rect Rectangle used to store the extents of the glyph string range as drawn.
- * @param logical_rect Rectangle used to store the logical extents of the glyph string range.
- */
- void get_extents(int start, int end, const Glib::RefPtr<const Font>& font, Rectangle& ink_rect, Rectangle& logical_rect) const;
-
- /** Computes the extents of the glyph string as drawn.
- * @param font A Pango::Font.
- * @return The extents of the glyph string as drawn.
- */
- Rectangle get_ink_extents(const Glib::RefPtr<const Font>& font) const;
-
- /** Computes the extents of a sub-portion of the glyph string as drawn.
- * @param start The start index.
- * @param end The end index.
- * @param font A Panog::Font
- * @return The extents of the sub-portion of the glyph string as drawn.
- */
- Rectangle get_ink_extents(int start, int end, const Glib::RefPtr<const Font>& font) const;
-
- /** Computes the logical extents of a sub-portion of the glyph string.
- * @param font A Pango::Font.
- * @return The logical extents of the glyph string.
- */
- Rectangle get_logical_extents(const Glib::RefPtr<const Font>& font) const;
-
- /** Computes the logical extents of a sub-portion of the glyph string.
- * @param start The start index.
- * @param end The end index.
- * @param font A Pango::Font.
- * @return The logical extents of the sub-portion of the glyph string.
- */
- Rectangle get_logical_extents(int start, int end, const Glib::RefPtr<const Font>& font) const;
-
- /** Determine the screen width corresponding to each character.
- * When multiple characters compose a single cluster, the width of the entire cluster
- * is divided equally among the characters.
- * @param text The text corresponding to the glyphs.
- * @param embedding_level The embedding level of the string.
- * @return An array of integers representing the resulting character widths.
- */
- Glib::ArrayHandle<int> get_logical_widths(const Glib::ustring& text, int embedding_level) const;
-
- /** Converts from character position to x position.
- * (X position is measured from the left edge of the run). Character positions are computed by dividing up each cluster into equal portions.
- * @param text The text corresponding to the glyphs.
- * @param analysis The analysis information return from Pango::Context::itemize().
- * @param index The byte index within text.
- * @param trailing Whether we should compute the result for the beginning or end of the character.
- * @return The x position.
- */
- int index_to_x(const Glib::ustring& text, const Analysis& analysis, int index, bool trailing) const;
-
- /** Convert from x offset to character position.
- * Character positions are computed by dividing up each cluster into equal portions.
- * In scripts where positioning within a cluster is not allowed (such as Thai),
- * the returned value may not be a valid cursor position; the caller must combine the
- * result with the logical attributes for the text to compute the valid cursor position.
- * @param text The text corresponding to the glyphs.
- * @param analysis The analysis information return from Pango::Context::itemize().
- * @param x_pos The x offset (in thousands of a device unit).
- * @param index The location to store calculated byte index within.
- * @param trailing The location to store a boolean indicating whether the user clicked on the leading or trailing edge of the character.
- */
- void x_to_index(const Glib::ustring& text, const Analysis& analysis, int x_pos, int& index, bool& trailing) const;
-
- /** Gharacter positions are computed by dividing up each cluster into equal portions.
- * @return An array of Pango::GlyphInfo objects.
- */
- Glib::ArrayHandle<GlyphInfo> get_glyphs() const;
-
-
- };
-
- } //namespace Pango
-
-
- namespace Pango
- {
-
- /** @relates Pango::GlyphString
- * @param lhs The left-hand side
- * @param rhs The right-hand side
- */
- inline void swap(GlyphString& lhs, GlyphString& rhs)
- { lhs.swap(rhs); }
-
- } // namespace Pango
-
- namespace Glib
- {
-
- /** @relates Pango::GlyphString
- * @param object The C instance
- * @param take_copy False if the result should take ownership of the C instance. True if it should take a new copy or ref.
- * @result A C++ instance that wraps this C instance.
- */
- Pango::GlyphString wrap(PangoGlyphString* object, bool take_copy = false);
-
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
- template <>
- class Value<Pango::GlyphString> : public Glib::Value_Boxed<Pango::GlyphString>
- {};
- #endif /* DOXYGEN_SHOULD_SKIP_THIS */
-
- } // namespace Glib
-
- #endif /* _PANGOMM_GLYPHSTRING_H */
-
-