81541e6940
The name of the parameter in the header and the one in the gtk-doc annotation on top of a function must match. Unfortunately, there is an index() function declared inside strings.h which makes gcc complain for the "index" argument as soon as we enable the extra compiler flags we use when distchecking. Hence, we need to rename "index" to "index_" in the header and in the source files.
218 lines
9.4 KiB
C
218 lines
9.4 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Authored By Matthew Allum <mallum@openedhand.com>
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*
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* Copyright (C) 2008 Intel Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#ifndef __CLUTTER_PATH_H__
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#define __CLUTTER_PATH_H__
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#include <glib-object.h>
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#include <clutter/clutter-types.h>
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#include <cairo/cairo.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_PATH (clutter_path_get_type ())
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#define CLUTTER_TYPE_PATH_NODE (clutter_path_node_get_type ())
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#define CLUTTER_PATH(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_PATH, ClutterPath))
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#define CLUTTER_PATH_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_PATH, ClutterPathClass))
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#define CLUTTER_IS_PATH(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_PATH))
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#define CLUTTER_IS_PATH_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_PATH))
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#define CLUTTER_PATH_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_PATH, ClutterPathClass))
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#define CLUTTER_PATH_RELATIVE (32)
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/**
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* ClutterPathNodeType:
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* @CLUTTER_PATH_MOVE_TO: jump to the given position
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* @CLUTTER_PATH_LINE_TO: create a line from the last node to the
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* given position
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* @CLUTTER_PATH_CURVE_TO: bezier curve using the last position and
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* three control points.
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* @CLUTTER_PATH_CLOSE: create a line from the last node to the last
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* %CLUTTER_PATH_MOVE_TO node.
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* @CLUTTER_PATH_REL_MOVE_TO: same as %CLUTTER_PATH_MOVE_TO but with
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* coordinates relative to the last node.
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* @CLUTTER_PATH_REL_LINE_TO: same as %CLUTTER_PATH_LINE_TO but with
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* coordinates relative to the last node.
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* @CLUTTER_PATH_REL_CURVE_TO: same as %CLUTTER_PATH_CURVE_TO but with
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* coordinates relative to the last node.
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*
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* Types of nodes in a #ClutterPath.
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*
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* Since: 1.0
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*/
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typedef enum {
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CLUTTER_PATH_MOVE_TO = 0,
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CLUTTER_PATH_LINE_TO = 1,
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CLUTTER_PATH_CURVE_TO = 2,
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CLUTTER_PATH_CLOSE = 3,
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CLUTTER_PATH_REL_MOVE_TO = CLUTTER_PATH_MOVE_TO | CLUTTER_PATH_RELATIVE,
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CLUTTER_PATH_REL_LINE_TO = CLUTTER_PATH_LINE_TO | CLUTTER_PATH_RELATIVE,
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CLUTTER_PATH_REL_CURVE_TO = CLUTTER_PATH_CURVE_TO | CLUTTER_PATH_RELATIVE
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} ClutterPathNodeType;
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typedef struct _ClutterPath ClutterPath;
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typedef struct _ClutterPathClass ClutterPathClass;
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typedef struct _ClutterPathPrivate ClutterPathPrivate;
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typedef struct _ClutterPathNode ClutterPathNode;
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/**
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* ClutterPathCallback:
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* @node: the node
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* @data: optional data passed to the function
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*
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* This function is passed to clutter_path_foreach() and will be
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* called for each node contained in the path.
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*
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* Since: 1.0
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*/
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typedef void (* ClutterPathCallback) (const ClutterPathNode *node,
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gpointer data);
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/**
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* ClutterPath:
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*
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* The #ClutterPath struct contains only private data and should
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* be accessed with the functions below.
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*
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* Since: 1.0
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*/
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struct _ClutterPath
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{
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/*< private >*/
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GInitiallyUnowned parent;
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ClutterPathPrivate *priv;
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};
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/**
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* ClutterPathClass:
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*
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* The #ClutterPathClass struct contains only private data.
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*
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* Since: 1.0
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*/
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struct _ClutterPathClass
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{
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/*< private >*/
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GInitiallyUnownedClass parent_class;
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};
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/**
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* ClutterPathNode:
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* @type: the node's type
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* @points: the coordinates of the node
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*
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* Represents a single node of a #ClutterPath.
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*
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* Some of the coordinates in @points may be unused for some node
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* types. %CLUTTER_PATH_MOVE_TO and %CLUTTER_PATH_LINE_TO use only two
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* pairs of coordinates, %CLUTTER_PATH_CURVE_TO uses all three and
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* %CLUTTER_PATH_CLOSE uses none.
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*
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* Since: 1.0
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*/
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struct _ClutterPathNode
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{
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ClutterPathNodeType type;
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ClutterKnot points[3];
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};
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GType clutter_path_get_type (void) G_GNUC_CONST;
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GType clutter_path_node_get_type (void) G_GNUC_CONST;
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ClutterPath *clutter_path_new (void);
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ClutterPath *clutter_path_new_with_description (const gchar *desc);
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void clutter_path_add_move_to (ClutterPath *path,
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gint x,
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gint y);
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void clutter_path_add_rel_move_to (ClutterPath *path,
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gint x,
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gint y);
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void clutter_path_add_line_to (ClutterPath *path,
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gint x,
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gint y);
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void clutter_path_add_rel_line_to (ClutterPath *path,
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gint x,
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gint y);
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void clutter_path_add_curve_to (ClutterPath *path,
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gint x1,
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gint y1,
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gint x2,
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gint y2,
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gint x3,
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gint y3);
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void clutter_path_add_rel_curve_to (ClutterPath *path,
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gint x1,
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gint y1,
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gint x2,
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gint y2,
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gint x3,
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gint y3);
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void clutter_path_add_close (ClutterPath *path);
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gboolean clutter_path_add_string (ClutterPath *path,
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const gchar *str);
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void clutter_path_add_node (ClutterPath *path,
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const ClutterPathNode *node);
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void clutter_path_add_cairo_path (ClutterPath *path,
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const cairo_path_t *cpath);
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guint clutter_path_get_n_nodes (ClutterPath *path);
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void clutter_path_get_node (ClutterPath *path,
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guint index_,
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ClutterPathNode *node);
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GSList * clutter_path_get_nodes (ClutterPath *path);
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void clutter_path_foreach (ClutterPath *path,
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ClutterPathCallback callback,
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gpointer user_data);
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void clutter_path_insert_node (ClutterPath *path,
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gint index_,
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const ClutterPathNode *node);
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void clutter_path_remove_node (ClutterPath *path,
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guint index_);
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void clutter_path_replace_node (ClutterPath *path,
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guint index_,
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const ClutterPathNode *node);
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gchar * clutter_path_get_description (ClutterPath *path);
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gboolean clutter_path_set_description (ClutterPath *path,
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const gchar *str);
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void clutter_path_clear (ClutterPath *path);
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void clutter_path_to_cairo_path (ClutterPath *path,
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cairo_t *cr);
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guint clutter_path_get_position (ClutterPath *path,
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gdouble progress,
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ClutterKnot *position);
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guint clutter_path_get_length (ClutterPath *path);
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ClutterPathNode *clutter_path_node_copy (const ClutterPathNode *node);
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void clutter_path_node_free (ClutterPathNode *node);
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gboolean clutter_path_node_equal (const ClutterPathNode *node_a,
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const ClutterPathNode *node_b);
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G_END_DECLS
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#endif /* __CLUTTER_PATH_H__ */
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