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authorMatthias Clasen <mclasen@redhat.com>2019-07-04 20:36:00 +0000
committerMatthias Clasen <mclasen@redhat.com>2019-07-04 17:28:40 -0400
commitd21ea13a22b1cab8c9cb604aa3fcd2ca8073befd (patch)
tree8d79daeb8f4254e319fede8bcc970f80cec83a2a /pango/pango-font-private.h
parent5112387e2c5d4e298d5781070b2f0749a2f7f005 (diff)
downloadpango-d21ea13a22b1cab8c9cb604aa3fcd2ca8073befd.tar.gz
Header cleanup
Abolish the PANGO_ENABLE_BACKEND and PANGO_ENABLE_ENGINE defines. All backend-only apis are moved into private headers, all apis that were engine-only are marked as deprecated, since engines are.
Diffstat (limited to 'pango/pango-font-private.h')
-rw-r--r--pango/pango-font-private.h194
1 files changed, 194 insertions, 0 deletions
diff --git a/pango/pango-font-private.h b/pango/pango-font-private.h
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+/* Pango
+ * pango-font.h: Font handling
+ *
+ * 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_FONT_PRIVATE_H__
+#define __PANGO_FONT_PRIVATE_H__
+
+#include <pango/pango-font.h>
+#include <pango/pango-coverage.h>
+#include <pango/pango-types.h>
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+
+PANGO_AVAILABLE_IN_ALL
+PangoFontMetrics *pango_font_metrics_new (void);
+
+struct _PangoFontMetrics
+{
+ /* <private> */
+ guint ref_count;
+
+ int ascent;
+ int descent;
+ int approximate_char_width;
+ int approximate_digit_width;
+ int underline_position;
+ int underline_thickness;
+ int strikethrough_position;
+ int strikethrough_thickness;
+};
+
+
+#define PANGO_FONT_FAMILY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONT_FAMILY, PangoFontFamilyClass))
+#define PANGO_IS_FONT_FAMILY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONT_FAMILY))
+#define PANGO_FONT_FAMILY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONT_FAMILY, PangoFontFamilyClass))
+
+typedef struct _PangoFontFamilyClass PangoFontFamilyClass;
+
+
+/**
+ * PangoFontFamily:
+ *
+ * The #PangoFontFamily structure is used to represent a family of related
+ * font faces. The faces in a family share a common design, but differ in
+ * slant, weight, width and other aspects.
+ */
+struct _PangoFontFamily
+{
+ GObject parent_instance;
+};
+
+struct _PangoFontFamilyClass
+{
+ GObjectClass parent_class;
+
+ /*< public >*/
+
+ void (*list_faces) (PangoFontFamily *family,
+ PangoFontFace ***faces,
+ int *n_faces);
+ const char * (*get_name) (PangoFontFamily *family);
+ gboolean (*is_monospace) (PangoFontFamily *family);
+ gboolean (*is_variable) (PangoFontFamily *family);
+
+ /*< private >*/
+
+ /* Padding for future expansion */
+ void (*_pango_reserved2) (void);
+ void (*_pango_reserved3) (void);
+};
+
+
+#define PANGO_FONT_FACE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONT_FACE, PangoFontFaceClass))
+#define PANGO_IS_FONT_FACE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONT_FACE))
+#define PANGO_FONT_FACE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONT_FACE, PangoFontFaceClass))
+
+typedef struct _PangoFontFaceClass PangoFontFaceClass;
+
+/**
+ * PangoFontFace:
+ *
+ * The #PangoFontFace structure is used to represent a group of fonts with
+ * the same family, slant, weight, width, but varying sizes.
+ */
+struct _PangoFontFace
+{
+ GObject parent_instance;
+};
+
+struct _PangoFontFaceClass
+{
+ GObjectClass parent_class;
+
+ /*< public >*/
+
+ const char * (*get_face_name) (PangoFontFace *face);
+ PangoFontDescription * (*describe) (PangoFontFace *face);
+ void (*list_sizes) (PangoFontFace *face,
+ int **sizes,
+ int *n_sizes);
+ gboolean (*is_synthesized) (PangoFontFace *face);
+
+ /*< private >*/
+
+ /* Padding for future expansion */
+ void (*_pango_reserved3) (void);
+ void (*_pango_reserved4) (void);
+};
+
+
+#define PANGO_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONT, PangoFontClass))
+#define PANGO_IS_FONT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONT))
+#define PANGO_FONT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONT, PangoFontClass))
+
+typedef struct _PangoFontClass PangoFontClass;
+
+/**
+ * PangoFont:
+ *
+ * The #PangoFont structure is used to represent
+ * a font in a rendering-system-independent matter.
+ * To create an implementation of a #PangoFont,
+ * the rendering-system specific code should allocate
+ * a larger structure that contains a nested
+ * #PangoFont, fill in the <structfield>klass</structfield> member of
+ * the nested #PangoFont with a pointer to
+ * a appropriate #PangoFontClass, then call
+ * pango_font_init() on the structure.
+ *
+ * The #PangoFont structure contains one member
+ * which the implementation fills in.
+ */
+struct _PangoFont
+{
+ GObject parent_instance;
+};
+
+struct _PangoFontClass
+{
+ GObjectClass parent_class;
+
+ /*< public >*/
+
+ PangoFontDescription *(*describe) (PangoFont *font);
+ PangoCoverage * (*get_coverage) (PangoFont *font,
+ PangoLanguage *language);
+ PangoEngineShape * (*find_shaper) (PangoFont *font,
+ PangoLanguage *language,
+ guint32 ch);
+ void (*get_glyph_extents) (PangoFont *font,
+ PangoGlyph glyph,
+ PangoRectangle *ink_rect,
+ PangoRectangle *logical_rect);
+ PangoFontMetrics * (*get_metrics) (PangoFont *font,
+ PangoLanguage *language);
+ PangoFontMap * (*get_font_map) (PangoFont *font);
+ PangoFontDescription *(*describe_absolute) (PangoFont *font);
+ /*< private >*/
+
+ /* Padding for future expansion */
+ void (*_pango_reserved1) (void);
+ void (*_pango_reserved2) (void);
+};
+
+/* used for very rare and miserable situtations that we cannot even
+ * draw a hexbox
+ */
+#define PANGO_UNKNOWN_GLYPH_WIDTH 10
+#define PANGO_UNKNOWN_GLYPH_HEIGHT 14
+
+
+G_END_DECLS
+
+#endif /* __PANGO_FONT_PRIVATE_H__ */