author | hgs |
Wed, 24 Mar 2010 18:04:17 -0500 | |
changeset 16 | 8e837d1bf446 |
parent 0 | 0e761a78d257 |
child 30 | 7e817e7e631c |
permissions | -rw-r--r-- |
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/* GStreamer Navigation |
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* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> |
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* Copyright (C) 2003 David A. Schleef <ds@schleef.org> |
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* |
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* navigation.h: navigation interface design |
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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 Library 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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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public |
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* License along with this library; if not, write to the |
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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* Boston, MA 02111-1307, USA. |
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*/ |
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|
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#ifndef __GST_NAVIGATION_H__ |
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#define __GST_NAVIGATION_H__ |
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#include <gst/gst.h> |
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G_BEGIN_DECLS |
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#define GST_TYPE_NAVIGATION \ |
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(gst_navigation_get_type ()) |
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#define GST_NAVIGATION(obj) \ |
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_NAVIGATION, GstNavigation)) |
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#define GST_IS_NAVIGATION(obj) \ |
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_NAVIGATION)) |
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#define GST_NAVIGATION_GET_IFACE(obj) \ |
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(G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_NAVIGATION, GstNavigationInterface)) |
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typedef struct _GstNavigation GstNavigation; |
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typedef struct _GstNavigationInterface GstNavigationInterface; |
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struct _GstNavigationInterface { |
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GTypeInterface g_iface; |
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/* virtual functions */ |
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void (*send_event) (GstNavigation *navigation, GstStructure *structure); |
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gpointer _gst_reserved[GST_PADDING]; |
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}; |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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GType gst_navigation_get_type (void); |
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/* Navigation commands */ |
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/** |
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* GstNavigationCommand: |
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* @GST_NAVIGATION_COMMAND_INVALID: An invalid command entry |
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* @GST_NAVIGATION_COMMAND_MENU1: Execute navigation menu command 1. For DVD, |
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* this enters the DVD root menu, or exits back to the title from the menu. |
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* @GST_NAVIGATION_COMMAND_MENU2: Execute navigation menu command 2. For DVD, |
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* this jumps to the DVD title menu. |
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* @GST_NAVIGATION_COMMAND_MENU3: Execute navigation menu command 3. For DVD, |
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* this jumps into the DVD root menu. |
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* @GST_NAVIGATION_COMMAND_MENU4: Execute navigation menu command 4. For DVD, |
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* this jumps to the Subpicture menu. |
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* @GST_NAVIGATION_COMMAND_MENU5: Execute navigation menu command 5. For DVD, |
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* the jumps to the audio menu. |
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* @GST_NAVIGATION_COMMAND_MENU6: Execute navigation menu command 6. For DVD, |
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* this jumps to the angles menu. |
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* @GST_NAVIGATION_COMMAND_MENU7: Execute navigation menu command 7. For DVD, |
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* this jumps to the chapter menu. |
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* @GST_NAVIGATION_COMMAND_LEFT: Select the next button to the left in a menu, |
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* if such a button exists. |
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* @GST_NAVIGATION_COMMAND_RIGHT: Select the next button to the right in a menu, |
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* if such a button exists. |
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* @GST_NAVIGATION_COMMAND_UP: Select the button above the current one in a |
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* menu, if such a button exists. |
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* @GST_NAVIGATION_COMMAND_DOWN: Select the button below the current one in a |
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* menu, if such a button exists. |
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* @GST_NAVIGATION_COMMAND_ACTIVATE: Activate (click) the currently selected |
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* button in a menu, if such a button exists. |
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* @GST_NAVIGATION_COMMAND_PREV_ANGLE: Switch to the previous angle in a |
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* multiangle feature. |
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* @GST_NAVIGATION_COMMAND_NEXT_ANGLE: Switch to the next angle in a multiangle |
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* feature. |
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* |
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* A set of commands that may be issued to an element providing the |
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* #GstNavigation interface. The available commands can be queried via |
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* the gst_navigation_query_new_commands() query. |
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* |
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* For convenience in handling DVD navigation, the MENU commands are aliased as: |
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* GST_NAVIGATION_COMMAND_DVD_MENU = @GST_NAVIGATION_COMMAND_MENU1 |
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* GST_NAVIGATION_COMMAND_DVD_TITLE_MENU = @GST_NAVIGATION_COMMAND_MENU2 |
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* GST_NAVIGATION_COMMAND_DVD_ROOT_MENU = @GST_NAVIGATION_COMMAND_MENU3 |
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* GST_NAVIGATION_COMMAND_DVD_SUBPICTURE_MENU = @GST_NAVIGATION_COMMAND_MENU4 |
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* GST_NAVIGATION_COMMAND_DVD_AUDIO_MENU = @GST_NAVIGATION_COMMAND_MENU5 |
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* GST_NAVIGATION_COMMAND_DVD_ANGLE_MENU = @GST_NAVIGATION_COMMAND_MENU6 |
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* GST_NAVIGATION_COMMAND_DVD_CHAPTER_MENU = @GST_NAVIGATION_COMMAND_MENU7 |
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* |
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* Since: 0.10.23 |
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*/ |
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typedef enum { |
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GST_NAVIGATION_COMMAND_INVALID = 0, |
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GST_NAVIGATION_COMMAND_MENU1 = 1, |
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GST_NAVIGATION_COMMAND_MENU2 = 2, |
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GST_NAVIGATION_COMMAND_MENU3 = 3, |
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GST_NAVIGATION_COMMAND_MENU4 = 4, |
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GST_NAVIGATION_COMMAND_MENU5 = 5, |
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GST_NAVIGATION_COMMAND_MENU6 = 6, |
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GST_NAVIGATION_COMMAND_MENU7 = 7, |
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GST_NAVIGATION_COMMAND_LEFT = 20, |
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GST_NAVIGATION_COMMAND_RIGHT = 21, |
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GST_NAVIGATION_COMMAND_UP = 22, |
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GST_NAVIGATION_COMMAND_DOWN = 23, |
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GST_NAVIGATION_COMMAND_ACTIVATE = 24, |
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GST_NAVIGATION_COMMAND_PREV_ANGLE = 30, |
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GST_NAVIGATION_COMMAND_NEXT_ANGLE = 31 |
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} GstNavigationCommand; |
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/* Some aliases for the menu command types */ |
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#define GST_NAVIGATION_COMMAND_DVD_MENU GST_NAVIGATION_COMMAND_MENU1 |
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#define GST_NAVIGATION_COMMAND_DVD_TITLE_MENU GST_NAVIGATION_COMMAND_MENU2 |
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#define GST_NAVIGATION_COMMAND_DVD_ROOT_MENU GST_NAVIGATION_COMMAND_MENU3 |
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#define GST_NAVIGATION_COMMAND_DVD_SUBPICTURE_MENU GST_NAVIGATION_COMMAND_MENU4 |
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#define GST_NAVIGATION_COMMAND_DVD_AUDIO_MENU GST_NAVIGATION_COMMAND_MENU5 |
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#define GST_NAVIGATION_COMMAND_DVD_ANGLE_MENU GST_NAVIGATION_COMMAND_MENU6 |
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#define GST_NAVIGATION_COMMAND_DVD_CHAPTER_MENU GST_NAVIGATION_COMMAND_MENU7 |
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/* Queries */ |
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typedef enum |
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{ |
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GST_NAVIGATION_QUERY_INVALID = 0, |
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GST_NAVIGATION_QUERY_COMMANDS = 1, |
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GST_NAVIGATION_QUERY_ANGLES = 2 |
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} GstNavigationQueryType; |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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GstNavigationQueryType gst_navigation_query_get_type (GstQuery *query); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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GstQuery *gst_navigation_query_new_commands (void); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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void gst_navigation_query_set_commands (GstQuery *query, gint n_cmds, ...); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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void gst_navigation_query_set_commandsv (GstQuery *query, gint n_cmds, |
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GstNavigationCommand *cmds); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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gboolean gst_navigation_query_parse_commands_length (GstQuery *query, |
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guint *n_cmds); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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gboolean gst_navigation_query_parse_commands_nth (GstQuery *query, guint nth, |
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GstNavigationCommand *cmd); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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GstQuery *gst_navigation_query_new_angles (void); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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void gst_navigation_query_set_angles (GstQuery *query, guint cur_angle, |
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guint n_angles); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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gboolean gst_navigation_query_parse_angles (GstQuery *query, guint *cur_angle, |
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guint *n_angles); |
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/* Element messages */ |
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/** |
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* GstNavigationMessageType: |
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* @GST_NAVIGATION_MESSAGE_INVALID: Returned from |
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* gst_navigation_message_get_type() when the passed message is not a |
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* navigation message. |
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* @GST_NAVIGATION_MESSAGE_MOUSE_OVER: Sent when the mouse moves over or leaves a |
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* clickable region of the output, such as a DVD menu button. |
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* @GST_NAVIGATION_MESSAGE_COMMANDS_CHANGED: Sent when the set of available commands |
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* changes and should re-queried by interested applications. |
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* @GST_NAVIGATION_MESSAGE_ANGLES_CHANGED: Sent when display angles in a multi-angle |
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* feature (such as a multiangle DVD) change - either angles have appeared or |
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* disappeared. |
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* |
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* A set of notifications that may be received on the bus when navigation |
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* related status changes. |
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* |
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* Since: 0.10.23 |
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*/ |
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typedef enum { |
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GST_NAVIGATION_MESSAGE_INVALID, |
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GST_NAVIGATION_MESSAGE_MOUSE_OVER, |
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GST_NAVIGATION_MESSAGE_COMMANDS_CHANGED, |
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GST_NAVIGATION_MESSAGE_ANGLES_CHANGED |
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} GstNavigationMessageType; |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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GstNavigationMessageType gst_navigation_message_get_type (GstMessage *message); |
|
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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||
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GstMessage *gst_navigation_message_new_mouse_over (GstObject *src, |
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gboolean active); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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gboolean gst_navigation_message_parse_mouse_over (GstMessage *message, |
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gboolean *active); |
|
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
|
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#endif |
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GstMessage *gst_navigation_message_new_commands_changed (GstObject *src); |
|
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
|
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#endif |
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GstMessage *gst_navigation_message_new_angles_changed (GstObject *src, |
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guint cur_angle, |
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guint n_angles); |
|
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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|
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gboolean gst_navigation_message_parse_angles_changed (GstMessage *message, |
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guint *cur_angle, |
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guint *n_angles); |
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/* event parsing functions */ |
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/** |
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* GstNavigationEventType: |
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* @GST_NAVIGATION_EVENT_INVALID: Returned from |
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* gst_navigation_event_get_type() when the passed event is not a navigation event. |
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* @GST_NAVIGATION_EVENT_KEY_PRESS: A key press event. Use |
|
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* gst_navigation_event_parse_key_event() to extract the details from the event. |
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* @GST_NAVIGATION_EVENT_KEY_RELEASE: A key release event. Use |
|
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* gst_navigation_event_parse_key_event() to extract the details from the event. |
|
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* @GST_NAVIGATION_EVENT_MOUSE_BUTTON_PRESS: A mouse button press event. Use |
|
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* gst_navigation_event_parse_mouse_button_event() to extract the details from the |
|
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* event. |
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* @GST_NAVIGATION_EVENT_MOUSE_BUTTON_RELEASE: A mouse button release event. Use |
|
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* gst_navigation_event_parse_mouse_button_event() to extract the details from the |
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* event. |
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* @GST_NAVIGATION_EVENT_MOUSE_MOVE: A mouse movement event. Use |
|
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* gst_navigation_event_parse_mouse_move_event() to extract the details from the |
|
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* event. |
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* @GST_NAVIGATION_EVENT_COMMAND: A navigation command event. Use |
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* gst_navigation_event_parse_command() to extract the details from the event. |
|
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* |
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* Enum values for the various events that an element implementing the |
|
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* GstNavigation interface might send up the pipeline. |
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* |
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* Since: 0.10.23 |
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*/ |
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typedef enum { |
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GST_NAVIGATION_EVENT_INVALID = 0, |
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GST_NAVIGATION_EVENT_KEY_PRESS = 1, |
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GST_NAVIGATION_EVENT_KEY_RELEASE = 2, |
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GST_NAVIGATION_EVENT_MOUSE_BUTTON_PRESS = 3, |
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GST_NAVIGATION_EVENT_MOUSE_BUTTON_RELEASE = 4, |
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GST_NAVIGATION_EVENT_MOUSE_MOVE = 5, |
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GST_NAVIGATION_EVENT_COMMAND = 6 |
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} GstNavigationEventType; |
|
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
|
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#endif |
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||
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||
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GstNavigationEventType gst_navigation_event_get_type (GstEvent *event); |
|
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
|
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#endif |
|
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||
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gboolean gst_navigation_event_parse_key_event (GstEvent *event, |
|
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const gchar **key); |
|
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
|
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#endif |
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||
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gboolean gst_navigation_event_parse_mouse_button_event (GstEvent *event, |
|
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gint *button, gdouble *x, gdouble *y); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
|
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#endif |
|
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gboolean gst_navigation_event_parse_mouse_move_event (GstEvent *event, |
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gdouble *x, gdouble *y); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
|
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#endif |
|
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gboolean gst_navigation_event_parse_command (GstEvent *event, |
|
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GstNavigationCommand *command); |
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/* interface virtual function wrappers */ |
|
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
|
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#endif |
|
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void gst_navigation_send_event (GstNavigation *navigation, |
|
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GstStructure *structure); |
|
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#ifdef __SYMBIAN32__ |
|
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IMPORT_C |
|
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#endif |
|
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|
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void gst_navigation_send_key_event (GstNavigation *navigation, |
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const char *event, const char *key); |
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#ifdef __SYMBIAN32__ |
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IMPORT_C |
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#endif |
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|
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void gst_navigation_send_mouse_event (GstNavigation *navigation, |
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const char *event, int button, double x, double y); |
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#ifdef __SYMBIAN32__ |
349 |
IMPORT_C |
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#endif |
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void gst_navigation_send_command (GstNavigation *navigation, |
|
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GstNavigationCommand command); |
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|
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G_END_DECLS |
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|
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#endif /* __GST_NAVIGATION_H__ */ |