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gtk/gdk/gdkevents.h
Matthias Clasen 497a43a4ba gdk: Drop event structs from the headers 
All events are GdkEvents now.
2020-02-21 00:51:03 -05:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef __GDK_EVENTS_H__
#define __GDK_EVENTS_H__
#if !defined (__GDK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gdk/gdk.h> can be included directly."
#endif
#include <gdk/gdkversionmacros.h>
#include <gdk/gdktypes.h>
#include <gdk/gdkdrag.h>
#include <gdk/gdkdevice.h>
#include <gdk/gdkdevicetool.h>
G_BEGIN_DECLS
#define GDK_TYPE_EVENT (gdk_event_get_type ())
#define GDK_TYPE_EVENT_SEQUENCE (gdk_event_sequence_get_type ())
/**
* GDK_PRIORITY_EVENTS:
*
* This is the priority that events from the X server are given in the
* [GLib Main Loop][glib-The-Main-Event-Loop].
*/
#define GDK_PRIORITY_EVENTS (G_PRIORITY_DEFAULT)
/**
* GDK_PRIORITY_REDRAW: (value 120)
*
* This is the priority that the idle handler processing surface updates
* is given in the
* [GLib Main Loop][glib-The-Main-Event-Loop].
*/
#define GDK_PRIORITY_REDRAW (G_PRIORITY_HIGH_IDLE + 20)
/**
* GDK_EVENT_PROPAGATE:
*
* Use this macro as the return value for continuing the propagation of
* an event handler.
*/
#define GDK_EVENT_PROPAGATE (FALSE)
/**
* GDK_EVENT_STOP:
*
* Use this macro as the return value for stopping the propagation of
* an event handler.
*/
#define GDK_EVENT_STOP (TRUE)
/**
* GDK_BUTTON_PRIMARY:
*
* The primary button. This is typically the left mouse button, or the
* right button in a left-handed setup.
*/
#define GDK_BUTTON_PRIMARY (1)
/**
* GDK_BUTTON_MIDDLE:
*
* The middle button.
*/
#define GDK_BUTTON_MIDDLE (2)
/**
* GDK_BUTTON_SECONDARY:
*
* The secondary button. This is typically the right mouse button, or the
* left button in a left-handed setup.
*/
#define GDK_BUTTON_SECONDARY (3)
typedef struct _GdkEventSequence GdkEventSequence;
typedef union _GdkEvent GdkEvent;
/**
* GdkEventType:
* @GDK_DELETE: the window manager has requested that the toplevel surface be
* hidden or destroyed, usually when the user clicks on a special icon in the
* title bar.
* @GDK_MOTION_NOTIFY: the pointer (usually a mouse) has moved.
* @GDK_BUTTON_PRESS: a mouse button has been pressed.
* @GDK_BUTTON_RELEASE: a mouse button has been released.
* @GDK_KEY_PRESS: a key has been pressed.
* @GDK_KEY_RELEASE: a key has been released.
* @GDK_ENTER_NOTIFY: the pointer has entered the surface.
* @GDK_LEAVE_NOTIFY: the pointer has left the surface.
* @GDK_FOCUS_CHANGE: the keyboard focus has entered or left the surface.
* @GDK_CONFIGURE: the size of the surface has changed.
* @GDK_PROXIMITY_IN: an input device has moved into contact with a sensing
* surface (e.g. a touchscreen or graphics tablet).
* @GDK_PROXIMITY_OUT: an input device has moved out of contact with a sensing
* surface.
* @GDK_DRAG_ENTER: the mouse has entered the surface while a drag is in progress.
* @GDK_DRAG_LEAVE: the mouse has left the surface while a drag is in progress.
* @GDK_DRAG_MOTION: the mouse has moved in the surface while a drag is in
* progress.
* @GDK_DROP_START: a drop operation onto the surface has started.
* @GDK_SCROLL: the scroll wheel was turned
* @GDK_GRAB_BROKEN: a pointer or keyboard grab was broken.
* @GDK_TOUCH_BEGIN: A new touch event sequence has just started.
* @GDK_TOUCH_UPDATE: A touch event sequence has been updated.
* @GDK_TOUCH_END: A touch event sequence has finished.
* @GDK_TOUCH_CANCEL: A touch event sequence has been canceled.
* @GDK_TOUCHPAD_SWIPE: A touchpad swipe gesture event, the current state
* is determined by its phase field.
* @GDK_TOUCHPAD_PINCH: A touchpad pinch gesture event, the current state
* is determined by its phase field.
* @GDK_PAD_BUTTON_PRESS: A tablet pad button press event.
* @GDK_PAD_BUTTON_RELEASE: A tablet pad button release event.
* @GDK_PAD_RING: A tablet pad axis event from a "ring".
* @GDK_PAD_STRIP: A tablet pad axis event from a "strip".
* @GDK_PAD_GROUP_MODE: A tablet pad group mode change.
* @GDK_EVENT_LAST: marks the end of the GdkEventType enumeration.
*
* Specifies the type of the event.
*/
typedef enum
{
GDK_DELETE,
GDK_MOTION_NOTIFY,
GDK_BUTTON_PRESS,
GDK_BUTTON_RELEASE,
GDK_KEY_PRESS,
GDK_KEY_RELEASE,
GDK_ENTER_NOTIFY,
GDK_LEAVE_NOTIFY,
GDK_FOCUS_CHANGE,
GDK_CONFIGURE,
GDK_PROXIMITY_IN,
GDK_PROXIMITY_OUT,
GDK_DRAG_ENTER,
GDK_DRAG_LEAVE,
GDK_DRAG_MOTION,
GDK_DROP_START,
GDK_SCROLL,
GDK_GRAB_BROKEN,
GDK_TOUCH_BEGIN,
GDK_TOUCH_UPDATE,
GDK_TOUCH_END,
GDK_TOUCH_CANCEL,
GDK_TOUCHPAD_SWIPE,
GDK_TOUCHPAD_PINCH,
GDK_PAD_BUTTON_PRESS,
GDK_PAD_BUTTON_RELEASE,
GDK_PAD_RING,
GDK_PAD_STRIP,
GDK_PAD_GROUP_MODE,
GDK_EVENT_LAST /* helper variable for decls */
} GdkEventType;
/**
* GdkTouchpadGesturePhase:
* @GDK_TOUCHPAD_GESTURE_PHASE_BEGIN: The gesture has begun.
* @GDK_TOUCHPAD_GESTURE_PHASE_UPDATE: The gesture has been updated.
* @GDK_TOUCHPAD_GESTURE_PHASE_END: The gesture was finished, changes
* should be permanently applied.
* @GDK_TOUCHPAD_GESTURE_PHASE_CANCEL: The gesture was cancelled, all
* changes should be undone.
*
* Specifies the current state of a touchpad gesture. All gestures are
* guaranteed to begin with an event with phase %GDK_TOUCHPAD_GESTURE_PHASE_BEGIN,
* followed by 0 or several events with phase %GDK_TOUCHPAD_GESTURE_PHASE_UPDATE.
*
* A finished gesture may have 2 possible outcomes, an event with phase
* %GDK_TOUCHPAD_GESTURE_PHASE_END will be emitted when the gesture is
* considered successful, this should be used as the hint to perform any
* permanent changes.
* Cancelled gestures may be so for a variety of reasons, due to hardware
* or the compositor, or due to the gesture recognition layers hinting the
* gesture did not finish resolutely (eg. a 3rd finger being added during
* a pinch gesture). In these cases, the last event will report the phase
* %GDK_TOUCHPAD_GESTURE_PHASE_CANCEL, this should be used as a hint
* to undo any visible/permanent changes that were done throughout the
* progress of the gesture.
*/
typedef enum
{
GDK_TOUCHPAD_GESTURE_PHASE_BEGIN,
GDK_TOUCHPAD_GESTURE_PHASE_UPDATE,
GDK_TOUCHPAD_GESTURE_PHASE_END,
GDK_TOUCHPAD_GESTURE_PHASE_CANCEL
} GdkTouchpadGesturePhase;
/**
* GdkScrollDirection:
* @GDK_SCROLL_UP: the surface is scrolled up.
* @GDK_SCROLL_DOWN: the surface is scrolled down.
* @GDK_SCROLL_LEFT: the surface is scrolled to the left.
* @GDK_SCROLL_RIGHT: the surface is scrolled to the right.
* @GDK_SCROLL_SMOOTH: the scrolling is determined by the delta values
* in scroll events. See gdk_event_get_scroll_deltas()
*
* Specifies the direction for scroll events.
*/
typedef enum
{
GDK_SCROLL_UP,
GDK_SCROLL_DOWN,
GDK_SCROLL_LEFT,
GDK_SCROLL_RIGHT,
GDK_SCROLL_SMOOTH
} GdkScrollDirection;
/**
* GdkNotifyType:
* @GDK_NOTIFY_ANCESTOR: the surface is entered from an ancestor or
* left towards an ancestor.
* @GDK_NOTIFY_VIRTUAL: the pointer moves between an ancestor and an
* inferior of the surface.
* @GDK_NOTIFY_INFERIOR: the surface is entered from an inferior or
* left towards an inferior.
* @GDK_NOTIFY_NONLINEAR: the surface is entered from or left towards
* a surface which is neither an ancestor nor an inferior.
* @GDK_NOTIFY_NONLINEAR_VIRTUAL: the pointer moves between two surfaces
* which are not ancestors of each other and the surface is part of
* the ancestor chain between one of these surfaces and their least
* common ancestor.
* @GDK_NOTIFY_UNKNOWN: an unknown type of enter/leave event occurred.
*
* Specifies the kind of crossing for enter and leave events.
*
* See the X11 protocol specification of LeaveNotify for
* full details of crossing event generation.
*/
typedef enum
{
GDK_NOTIFY_ANCESTOR = 0,
GDK_NOTIFY_VIRTUAL = 1,
GDK_NOTIFY_INFERIOR = 2,
GDK_NOTIFY_NONLINEAR = 3,
GDK_NOTIFY_NONLINEAR_VIRTUAL = 4,
GDK_NOTIFY_UNKNOWN = 5
} GdkNotifyType;
/**
* GdkCrossingMode:
* @GDK_CROSSING_NORMAL: crossing because of pointer motion.
* @GDK_CROSSING_GRAB: crossing because a grab is activated.
* @GDK_CROSSING_UNGRAB: crossing because a grab is deactivated.
* @GDK_CROSSING_GTK_GRAB: crossing because a GTK+ grab is activated.
* @GDK_CROSSING_GTK_UNGRAB: crossing because a GTK+ grab is deactivated.
* @GDK_CROSSING_STATE_CHANGED: crossing because a GTK+ widget changed
* state (e.g. sensitivity).
* @GDK_CROSSING_TOUCH_BEGIN: crossing because a touch sequence has begun,
* this event is synthetic as the pointer might have not left the surface.
* @GDK_CROSSING_TOUCH_END: crossing because a touch sequence has ended,
* this event is synthetic as the pointer might have not left the surface.
* @GDK_CROSSING_DEVICE_SWITCH: crossing because of a device switch (i.e.
* a mouse taking control of the pointer after a touch device), this event
* is synthetic as the pointer didn’t leave the surface.
*
* Specifies the crossing mode for enter and leave events.
*/
typedef enum
{
GDK_CROSSING_NORMAL,
GDK_CROSSING_GRAB,
GDK_CROSSING_UNGRAB,
GDK_CROSSING_GTK_GRAB,
GDK_CROSSING_GTK_UNGRAB,
GDK_CROSSING_STATE_CHANGED,
GDK_CROSSING_TOUCH_BEGIN,
GDK_CROSSING_TOUCH_END,
GDK_CROSSING_DEVICE_SWITCH
} GdkCrossingMode;
GDK_AVAILABLE_IN_ALL
GType gdk_event_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GType gdk_event_sequence_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GdkEvent * gdk_event_ref (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
void gdk_event_unref (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkEventType gdk_event_get_event_type (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkSurface * gdk_event_get_surface (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkDevice * gdk_event_get_device (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkDevice * gdk_event_get_source_device (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkDeviceTool * gdk_event_get_device_tool (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
guint32 gdk_event_get_time (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkDisplay * gdk_event_get_display (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkEventSequence * gdk_event_get_event_sequence (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkModifierType gdk_event_get_modifier_state (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_position (GdkEvent *event,
double *x,
double *y);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_axes (GdkEvent *event,
double **axes,
guint *n_axes);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_axis (GdkEvent *event,
GdkAxisUse axis_use,
double *value);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_pointer_emulated (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
guint gdk_button_event_get_button (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkScrollDirection gdk_scroll_event_get_direction (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
void gdk_scroll_event_get_deltas (GdkEvent *event,
double *delta_x,
double *delta_y);
GDK_AVAILABLE_IN_ALL
gboolean gdk_scroll_event_is_stop (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
guint gdk_key_event_get_keyval (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
guint gdk_key_event_get_keycode (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
guint gdk_key_event_get_scancode (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
guint gdk_key_event_get_group (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_key_event_is_modifier (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_focus_event_get_in (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_touch_event_get_emulating_pointer (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkCrossingMode gdk_crossing_event_get_mode (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkNotifyType gdk_crossing_event_get_detail (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
void gdk_configure_event_get_size (GdkEvent *event,
int *width,
int *height);
GDK_AVAILABLE_IN_ALL
GdkTouchpadGesturePhase
gdk_touchpad_event_get_gesture_phase (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
guint gdk_touchpad_event_get_n_fingers (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
void gdk_touchpad_event_get_deltas (GdkEvent *event,
double *dx,
double *dy);
GDK_AVAILABLE_IN_ALL
double gdk_touchpad_pinch_event_get_angle_delta (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
double gdk_touchpad_pinch_event_get_scale (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
guint gdk_pad_button_event_get_button (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
void gdk_pad_axis_event_get_value (GdkEvent *event,
guint *index,
double *value);
GDK_AVAILABLE_IN_ALL
void gdk_pad_event_get_group_mode (GdkEvent *event,
guint *group,
guint *mode);
GDK_AVAILABLE_IN_ALL
GdkDrop * gdk_drag_event_get_drop (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkSurface * gdk_grab_broken_event_get_grab_surface (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GList * gdk_event_get_motion_history (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_triggers_context_menu (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_events_get_distance (GdkEvent *event1,
GdkEvent *event2,
double *distance);
GDK_AVAILABLE_IN_ALL
gboolean gdk_events_get_angle (GdkEvent *event1,
GdkEvent *event2,
double *angle);
GDK_AVAILABLE_IN_ALL
gboolean gdk_events_get_center (GdkEvent *event1,
GdkEvent *event2,
double *x,
double *y);
G_END_DECLS
#endif /* __GDK_EVENTS_H__ */
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