/* Pango * pango-layout.h: Highlevel layout driver * * 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_LAYOUT_H__ #define __PANGO_LAYOUT_H__ #include #include #include #include G_BEGIN_DECLS typedef struct _PangoLayout PangoLayout; typedef struct _PangoLayoutClass PangoLayoutClass; typedef struct _PangoLayoutLine PangoLayoutLine; /* For backwards compatiblity */ typedef PangoGlyphItem PangoLayoutRun; typedef enum { PANGO_ALIGN_LEFT, PANGO_ALIGN_CENTER, PANGO_ALIGN_RIGHT } PangoAlignment; typedef enum { PANGO_WRAP_WORD, PANGO_WRAP_CHAR, PANGO_WRAP_WORD_CHAR } PangoWrapMode; /** * PangoEllipsizeMode * @PANGO_ELLIPSIZE_NONE: No ellipsization * @PANGO_ELLIPSIZE_START: Omit characters at the start of the text * @PANGO_ELLIPSIZE_MIDDLE: Omit characters in the middle of the text * @PANGO_ELLIPSIZE_END: Omit characters at the end of the text * * The #PangoEllipsizeMode type describes what sort of (if any) * ellipsization should be applied to a line of text. In * the ellipsization process characters are removed from the * text in order to make it fit to a given width and replaced * with an ellipsis. */ typedef enum { PANGO_ELLIPSIZE_NONE, PANGO_ELLIPSIZE_START, PANGO_ELLIPSIZE_MIDDLE, PANGO_ELLIPSIZE_END } PangoEllipsizeMode; struct _PangoLayoutLine { PangoLayout *layout; gint start_index; /* start of line as byte index into layout->text */ gint length; /* length of line in bytes */ GSList *runs; guint is_paragraph_start : 1; /* TRUE if this is the first line of the paragraph */ guint resolved_dir : 3; /* Resolved direction of line */ }; #define PANGO_TYPE_LAYOUT (pango_layout_get_type ()) #define PANGO_LAYOUT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_LAYOUT, PangoLayout)) #define PANGO_LAYOUT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_LAYOUT, PangoLayoutClass)) #define PANGO_IS_LAYOUT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_LAYOUT)) #define PANGO_IS_LAYOUT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_LAYOUT)) #define PANGO_LAYOUT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_LAYOUT, PangoLayoutClass)) /* The PangoLayout and PangoLayoutClass structs are private; if you * need to create a subclass of these, mail otaylor@redhat.com */ GType pango_layout_get_type (void) G_GNUC_CONST; PangoLayout *pango_layout_new (PangoContext *context); PangoLayout *pango_layout_copy (PangoLayout *src); PangoContext *pango_layout_get_context (PangoLayout *layout); void pango_layout_set_attributes (PangoLayout *layout, PangoAttrList *attrs); PangoAttrList *pango_layout_get_attributes (PangoLayout *layout); void pango_layout_set_text (PangoLayout *layout, const char *text, int length); const char *pango_layout_get_text (PangoLayout *layout); void pango_layout_set_markup (PangoLayout *layout, const char *markup, int length); void pango_layout_set_markup_with_accel (PangoLayout *layout, const char *markup, int length, gunichar accel_marker, gunichar *accel_char); void pango_layout_set_font_description (PangoLayout *layout, const PangoFontDescription *desc); G_CONST_RETURN PangoFontDescription *pango_layout_get_font_description (PangoLayout *layout); void pango_layout_set_width (PangoLayout *layout, int width); int pango_layout_get_width (PangoLayout *layout); void pango_layout_set_wrap (PangoLayout *layout, PangoWrapMode wrap); PangoWrapMode pango_layout_get_wrap (PangoLayout *layout); void pango_layout_set_indent (PangoLayout *layout, int indent); int pango_layout_get_indent (PangoLayout *layout); void pango_layout_set_spacing (PangoLayout *layout, int spacing); int pango_layout_get_spacing (PangoLayout *layout); void pango_layout_set_justify (PangoLayout *layout, gboolean justify); gboolean pango_layout_get_justify (PangoLayout *layout); void pango_layout_set_auto_dir (PangoLayout *layout, gboolean auto_dir); gboolean pango_layout_get_auto_dir (PangoLayout *layout); void pango_layout_set_alignment (PangoLayout *layout, PangoAlignment alignment); PangoAlignment pango_layout_get_alignment (PangoLayout *layout); void pango_layout_set_tabs (PangoLayout *layout, PangoTabArray *tabs); PangoTabArray* pango_layout_get_tabs (PangoLayout *layout); void pango_layout_set_single_paragraph_mode (PangoLayout *layout, gboolean setting); gboolean pango_layout_get_single_paragraph_mode (PangoLayout *layout); void pango_layout_set_ellipsize (PangoLayout *layout, PangoEllipsizeMode ellipsize); PangoEllipsizeMode pango_layout_get_ellipsize (PangoLayout *layout); void pango_layout_context_changed (PangoLayout *layout); void pango_layout_get_log_attrs (PangoLayout *layout, PangoLogAttr **attrs, gint *n_attrs); void pango_layout_index_to_pos (PangoLayout *layout, int index_, PangoRectangle *pos); void pango_layout_get_cursor_pos (PangoLayout *layout, int index_, PangoRectangle *strong_pos, PangoRectangle *weak_pos); void pango_layout_move_cursor_visually (PangoLayout *layout, gboolean strong, int old_index, int old_trailing, int direction, int *new_index, int *new_trailing); gboolean pango_layout_xy_to_index (PangoLayout *layout, int x, int y, int *index_, int *trailing); void pango_layout_get_extents (PangoLayout *layout, PangoRectangle *ink_rect, PangoRectangle *logical_rect); void pango_layout_get_pixel_extents (PangoLayout *layout, PangoRectangle *ink_rect, PangoRectangle *logical_rect); void pango_layout_get_size (PangoLayout *layout, int *width, int *height); void pango_layout_get_pixel_size (PangoLayout *layout, int *width, int *height); int pango_layout_get_line_count (PangoLayout *layout); PangoLayoutLine *pango_layout_get_line (PangoLayout *layout, int line); GSList * pango_layout_get_lines (PangoLayout *layout); void pango_layout_line_ref (PangoLayoutLine *line); void pango_layout_line_unref (PangoLayoutLine *line); gboolean pango_layout_line_x_to_index (PangoLayoutLine *line, int x_pos, int *index_, int *trailing); void pango_layout_line_index_to_x (PangoLayoutLine *line, int index_, gboolean trailing, int *x_pos); void pango_layout_line_get_x_ranges (PangoLayoutLine *line, int start_index, int end_index, int **ranges, int *n_ranges); void pango_layout_line_get_extents (PangoLayoutLine *line, PangoRectangle *ink_rect, PangoRectangle *logical_rect); void pango_layout_line_get_pixel_extents (PangoLayoutLine *layout_line, PangoRectangle *ink_rect, PangoRectangle *logical_rect); typedef struct _PangoLayoutIter PangoLayoutIter; #define PANGO_TYPE_LAYOUT_ITER (pango_layout_iter_get_type ()) GType pango_layout_iter_get_type (void); PangoLayoutIter *pango_layout_get_iter (PangoLayout *layout); void pango_layout_iter_free (PangoLayoutIter *iter); int pango_layout_iter_get_index (PangoLayoutIter *iter); PangoLayoutRun *pango_layout_iter_get_run (PangoLayoutIter *iter); PangoLayoutLine *pango_layout_iter_get_line (PangoLayoutIter *iter); gboolean pango_layout_iter_at_last_line (PangoLayoutIter *iter); gboolean pango_layout_iter_next_char (PangoLayoutIter *iter); gboolean pango_layout_iter_next_cluster (PangoLayoutIter *iter); gboolean pango_layout_iter_next_run (PangoLayoutIter *iter); gboolean pango_layout_iter_next_line (PangoLayoutIter *iter); void pango_layout_iter_get_char_extents (PangoLayoutIter *iter, PangoRectangle *logical_rect); void pango_layout_iter_get_cluster_extents (PangoLayoutIter *iter, PangoRectangle *ink_rect, PangoRectangle *logical_rect); void pango_layout_iter_get_run_extents (PangoLayoutIter *iter, PangoRectangle *ink_rect, PangoRectangle *logical_rect); void pango_layout_iter_get_line_extents (PangoLayoutIter *iter, PangoRectangle *ink_rect, PangoRectangle *logical_rect); /* All the yranges meet, unlike the logical_rect's (i.e. the yranges * assign between-line spacing to the nearest line) */ void pango_layout_iter_get_line_yrange (PangoLayoutIter *iter, int *y0_, int *y1_); void pango_layout_iter_get_layout_extents (PangoLayoutIter *iter, PangoRectangle *ink_rect, PangoRectangle *logical_rect); int pango_layout_iter_get_baseline (PangoLayoutIter *iter); G_END_DECLS #endif /* __PANGO_LAYOUT_H__ */