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authorOwen Taylor <otaylor@redhat.com>2000-02-01 06:55:09 +0000
committerOwen Taylor <otaylor@src.gnome.org>2000-02-01 06:55:09 +0000
commit532c6902c34f47d5f838623c951e53d5fcdd395f (patch)
tree1a336bca112ada6b934f264b9c832bceb6fe1771 /pango/pango-glyph.h
parent635469870a2b1375105cb305b9f4b09fa05d2208 (diff)
downloadpango-532c6902c34f47d5f838623c951e53d5fcdd395f.tar.gz
The great header file reorganization. Split up roughtly by objects.
Wed Feb 2 00:07:13 2000 Owen Taylor <otaylor@redhat.com> * libpango/pango-*.h: The great header file reorganization. Split up roughtly by objects. * libpango/pango-font.h libpango/fonts.h: Add generic font-loading and listing interfaces. * libpango/pangox.c: Implement font-listing/loading interfaces for X. * libpango/pango-context.[ch]: Flesh out context structure. Add appropriate accesors, font loading-methods, etc. * libpango/pango-coverage.[ch]: Coverage map objects. * examples/viewer.c: First stab at adding font-selection. Majorly deficient for the moment until we add font lists and fallbacks based on coverage maps.
Diffstat (limited to 'pango/pango-glyph.h')
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diff --git a/pango/pango-glyph.h b/pango/pango-glyph.h
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+/* Pango
+ * pango-glyph.h: Glyph storage
+ *
+ * Copyright (C) 2000 Red Hat Software
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __PANGO_GLYPH_H__
+#define __PANGO_GLYPH_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+typedef struct _PangoGlyphGeometry PangoGlyphGeometry;
+typedef struct _PangoGlyphVisAttr PangoGlyphVisAttr;
+typedef struct _PangoGlyphInfo PangoGlyphInfo;
+typedef struct _PangoGlyphString PangoGlyphString;
+
+/* 64'ths of a point - 1/4608 in, 5.51 * 10^-5 in. */
+typedef guint32 PangoGlyphUnit;
+
+/* A index of a glyph into a font. Rendering system dependent
+ */
+typedef guint32 PangoGlyph;
+
+/* Positioning information about a glyph
+ */
+struct _PangoGlyphGeometry
+{
+ PangoGlyphUnit width;
+ PangoGlyphUnit x_offset;
+ PangoGlyphUnit y_offset;
+};
+
+/* Visual attributes of a glyph
+ */
+struct _PangoGlyphVisAttr
+{
+ guint is_cluster_start : 1;
+};
+
+/* A single glyph
+ */
+struct _PangoGlyphInfo
+{
+ PangoGlyph glyph;
+ PangoGlyphGeometry geometry;
+ PangoGlyphVisAttr attr;
+};
+
+/* A string of glyphs with positional information and visual attributes -
+ * ready for drawing
+ */
+struct _PangoGlyphString {
+ gint num_glyphs;
+
+ PangoGlyphInfo *glyphs;
+
+ /* This is a memory inefficient way of representing the
+ * information here - each value gives the character index
+ * of the start of the cluster to which the glyph belongs.
+ */
+ gint *log_clusters;
+
+ /*< private >*/
+ gint space;
+};
+
+PangoGlyphString *pango_glyph_string_new (void);
+void pango_glyph_string_set_size (PangoGlyphString *string,
+ gint new_len);
+void pango_glyph_string_free (PangoGlyphString *string);
+
+void pango_cp_to_x (gchar *text,
+ gint length,
+ PangoAnalysis *analysis,
+ PangoGlyphString *glyphs,
+ gint char_pos,
+ gboolean trailing,
+ gint *x_pos);
+void pango_x_to_cp (gchar *text,
+ gint length,
+ PangoAnalysis *analysis,
+ PangoGlyphString *glyphs,
+ gint x_pos,
+ gint *char_pos,
+ gint *trailing);
+
+void pango_justify (PangoGlyphString *glyphs,
+ gint new_line_width,
+ gint min_kashida_width);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif __PANGO_GLYPH_H__