gtk2/gdk/gdkevents.h
Carlos Garnacho cab1dcb696 gdk: Conflate GDK devices
Make GdkEvents hold a single GdkDevice. This device is closer to
the logical device conceptually, although it must be sufficient for
device checks (i.e. GdkInputSource), which makes it similar to the
physical devices.

Make the logical devices have a more accurate GdkInputSource where
needed, and conflate the event devices altogether.
2020-07-29 01:27:51 +02:00

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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 ())
#define GDK_IS_EVENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_EVENT))
#define GDK_EVENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_EVENT, GdkEvent))
#define GDK_IS_EVENT_TYPE(event, type) (gdk_event_get_event_type ((event)) == (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 struct _GdkEvent GdkEvent;
#define GDK_TYPE_BUTTON_EVENT (gdk_button_event_get_type())
#define GDK_TYPE_CONFIGURE_EVENT (gdk_configure_event_get_type())
#define GDK_TYPE_CROSSING_EVENT (gdk_crossing_event_get_type())
#define GDK_TYPE_DELETE_EVENT (gdk_delete_event_get_type())
#define GDK_TYPE_DND_EVENT (gdk_dnd_event_get_type())
#define GDK_TYPE_FOCUS_EVENT (gdk_focus_event_get_type())
#define GDK_TYPE_GRAB_BROKEN_EVENT (gdk_grab_broken_event_get_type())
#define GDK_TYPE_KEY_EVENT (gdk_key_event_get_type())
#define GDK_TYPE_MOTION_EVENT (gdk_motion_event_get_type())
#define GDK_TYPE_PAD_EVENT (gdk_pad_event_get_type())
#define GDK_TYPE_PROXIMITY_EVENT (gdk_proximity_event_get_type())
#define GDK_TYPE_SCROLL_EVENT (gdk_scroll_event_get_type())
#define GDK_TYPE_TOUCH_EVENT (gdk_touch_event_get_type())
#define GDK_TYPE_TOUCHPAD_EVENT (gdk_touchpad_event_get_type())
typedef struct _GdkButtonEvent GdkButtonEvent;
typedef struct _GdkConfigureEvent GdkConfigureEvent;
typedef struct _GdkCrossingEvent GdkCrossingEvent;
typedef struct _GdkDeleteEvent GdkDeleteEvent;
typedef struct _GdkDNDEvent GdkDNDEvent;
typedef struct _GdkFocusEvent GdkFocusEvent;
typedef struct _GdkGrabBrokenEvent GdkGrabBrokenEvent;
typedef struct _GdkKeyEvent GdkKeyEvent;
typedef struct _GdkMotionEvent GdkMotionEvent;
typedef struct _GdkPadEvent GdkPadEvent;
typedef struct _GdkProximityEvent GdkProximityEvent;
typedef struct _GdkScrollEvent GdkScrollEvent;
typedef struct _GdkTouchEvent GdkTouchEvent;
typedef struct _GdkTouchpadEvent GdkTouchpadEvent;
/**
* 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 didnt 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
GdkSeat * gdk_event_get_seat (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkDevice * gdk_event_get_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
GdkTimeCoord * gdk_event_get_history (GdkEvent *event,
guint *out_n_coords);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_pointer_emulated (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GType gdk_button_event_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
guint gdk_button_event_get_button (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GType gdk_scroll_event_get_type (void) G_GNUC_CONST;
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
GType gdk_key_event_get_type (void) G_GNUC_CONST;
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
GdkModifierType gdk_key_event_get_consumed_modifiers (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
guint gdk_key_event_get_layout (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
guint gdk_key_event_get_level (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_key_event_is_modifier (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GType gdk_focus_event_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
gboolean gdk_focus_event_get_in (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GType gdk_touch_event_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
gboolean gdk_touch_event_get_emulating_pointer (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GType gdk_crossing_event_get_type (void) G_GNUC_CONST;
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
gboolean gdk_crossing_event_get_focus (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GType gdk_configure_event_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
void gdk_configure_event_get_size (GdkEvent *event,
int *width,
int *height);
GDK_AVAILABLE_IN_ALL
GType gdk_touchpad_event_get_type (void) G_GNUC_CONST;
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_event_get_pinch_angle_delta (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
double gdk_touchpad_event_get_pinch_scale (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GType gdk_pad_event_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
guint gdk_pad_event_get_button (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
void gdk_pad_event_get_axis_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
GType gdk_dnd_event_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GdkDrop * gdk_dnd_event_get_drop (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GType gdk_grab_broken_event_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GdkSurface * gdk_grab_broken_event_get_grab_surface (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_grab_broken_event_get_implicit (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GType gdk_motion_event_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GType gdk_delete_event_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GType gdk_proximity_event_get_type (void) G_GNUC_CONST;
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);
/**
* GdkKeyMatch:
* @GDK_KEY_MATCH_NONE: The key event does not match
* @GDK_KEY_MATCH_PARTIAL: The key event matches if keyboard state
* (specifically, the currently active group) is ignored
* @GDK_KEY_MATCH_EXACT: The key event matches
*
* The possible return values from gdk_key_event_matches()
* describe how well an event matches a given keyval and modifiers.
*/
typedef enum {
GDK_KEY_MATCH_NONE,
GDK_KEY_MATCH_PARTIAL,
GDK_KEY_MATCH_EXACT
} GdkKeyMatch;
GDK_AVAILABLE_IN_ALL
GdkKeyMatch gdk_key_event_matches (GdkEvent *event,
guint keyval,
GdkModifierType modifiers);
GDK_AVAILABLE_IN_ALL
gboolean gdk_key_event_get_match (GdkEvent *event,
guint *keyval,
GdkModifierType *modifiers);
G_END_DECLS
#endif /* __GDK_EVENTS_H__ */