gtk2/gdk/gdkevents.h
Matthias Clasen 64f5afe608 dnd: Rename headers
Rename gdkdnd.h to gdkdrag.h, to go along with gdkdrop.h

This commit includes the necessary updates to the X11, Wayland
and Broadway backends. Other backends have to be updated separately.
2018-07-02 15:00:50 +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 (GDK_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_EVENT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_EVENT, GdkEvent))
#define GDK_IS_EVENT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_EVENT))
/**
* 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:
*
* 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 _GdkEventAny GdkEventAny;
typedef struct _GdkEventExpose GdkEventExpose;
typedef struct _GdkEventMotion GdkEventMotion;
typedef struct _GdkEventButton GdkEventButton;
typedef struct _GdkEventTouch GdkEventTouch;
typedef struct _GdkEventScroll GdkEventScroll;
typedef struct _GdkEventKey GdkEventKey;
typedef struct _GdkEventFocus GdkEventFocus;
typedef struct _GdkEventCrossing GdkEventCrossing;
typedef struct _GdkEventConfigure GdkEventConfigure;
typedef struct _GdkEventProximity GdkEventProximity;
typedef struct _GdkEventDND GdkEventDND;
typedef struct _GdkEventSetting GdkEventSetting;
typedef struct _GdkEventGrabBroken GdkEventGrabBroken;
typedef struct _GdkEventTouchpadSwipe GdkEventTouchpadSwipe;
typedef struct _GdkEventTouchpadPinch GdkEventTouchpadPinch;
typedef struct _GdkEventPadButton GdkEventPadButton;
typedef struct _GdkEventPadAxis GdkEventPadAxis;
typedef struct _GdkEventPadGroupMode GdkEventPadGroupMode;
typedef struct _GdkEventSequence GdkEventSequence;
typedef union _GdkEvent GdkEvent;
/**
* GdkEventFunc:
* @event: the #GdkEvent to process.
* @data: (closure): user data set when the event handler was installed with
* gdk_event_handler_set().
*
* Specifies the type of function passed to gdk_event_handler_set() to
* handle all GDK events.
*/
typedef void (*GdkEventFunc) (GdkEvent *event,
gpointer data);
/**
* GdkEventType:
* @GDK_NOTHING: a special code to indicate a null event.
* @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_DESTROY: the surface has been destroyed.
* @GDK_EXPOSE: all or part of the surface has become visible and needs to be
* redrawn.
* @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, position or stacking order of the surface has changed.
* Note that GTK+ discards these events for %GDK_SURFACE_CHILD surfaces.
* @GDK_MAP: the surface has been mapped.
* @GDK_UNMAP: the surface has been unmapped.
* @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. This event type
* was added in 2.8.
* @GDK_TOUCH_BEGIN: A new touch event sequence has just started. This event
* type was added in 3.4.
* @GDK_TOUCH_UPDATE: A touch event sequence has been updated. This event type
* was added in 3.4.
* @GDK_TOUCH_END: A touch event sequence has finished. This event type
* was added in 3.4.
* @GDK_TOUCH_CANCEL: A touch event sequence has been canceled. This event type
* was added in 3.4.
* @GDK_TOUCHPAD_SWIPE: A touchpad swipe gesture event, the current state
* is determined by its phase field. This event type was added in 3.18.
* @GDK_TOUCHPAD_PINCH: A touchpad pinch gesture event, the current state
* is determined by its phase field. This event type was added in 3.18.
* @GDK_PAD_BUTTON_PRESS: A tablet pad button press event. This event type
* was added in 3.22.
* @GDK_PAD_BUTTON_RELEASE: A tablet pad button release event. This event type
* was added in 3.22.
* @GDK_PAD_RING: A tablet pad axis event from a "ring". This event type was
* added in 3.22.
* @GDK_PAD_STRIP: A tablet pad axis event from a "strip". This event type was
* added in 3.22.
* @GDK_PAD_GROUP_MODE: A tablet pad group mode change. This event type was
* added in 3.22.
* @GDK_EVENT_LAST: marks the end of the GdkEventType enumeration. Added in 2.18
*
* Specifies the type of the event.
*
* Do not confuse these events with the signals that GTK+ widgets emit.
* Although many of these events result in corresponding signals being emitted,
* the events are often transformed or filtered along the way.
*/
typedef enum
{
GDK_NOTHING,
GDK_DELETE,
GDK_DESTROY,
GDK_EXPOSE,
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_MAP,
GDK_UNMAP,
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_new (GdkEventType type);
GDK_AVAILABLE_IN_ALL
GdkEvent* gdk_event_copy (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkSurface *gdk_event_get_surface (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
guint32 gdk_event_get_time (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_state (const GdkEvent *event,
GdkModifierType *state);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_coords (const GdkEvent *event,
gdouble *x_win,
gdouble *y_win);
GDK_AVAILABLE_IN_ALL
void gdk_event_set_coords (GdkEvent *event,
gdouble x,
gdouble y);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_root_coords (const GdkEvent *event,
gdouble *x_root,
gdouble *y_root);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_button (const GdkEvent *event,
guint *button);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_click_count (const GdkEvent *event,
guint *click_count);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_keyval (const GdkEvent *event,
guint *keyval);
GDK_AVAILABLE_IN_ALL
void gdk_event_set_keyval (GdkEvent *event,
guint keyval);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_keycode (const GdkEvent *event,
guint16 *keycode);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_key_is_modifier (const GdkEvent *event,
gboolean *is_modifier);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_key_group (const GdkEvent *event,
guint *group);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_string (const GdkEvent *event,
const char **string);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_scroll_direction (const GdkEvent *event,
GdkScrollDirection *direction);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_scroll_deltas (const GdkEvent *event,
gdouble *delta_x,
gdouble *delta_y);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_is_scroll_stop_event (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_axis (const GdkEvent *event,
GdkAxisUse axis_use,
gdouble *value);
GDK_AVAILABLE_IN_ALL
void gdk_event_set_device (GdkEvent *event,
GdkDevice *device);
GDK_AVAILABLE_IN_ALL
GdkDevice* gdk_event_get_device (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
void gdk_event_set_source_device (GdkEvent *event,
GdkDevice *device);
GDK_AVAILABLE_IN_ALL
GdkDevice* gdk_event_get_source_device (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_triggers_context_menu (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_events_get_distance (GdkEvent *event1,
GdkEvent *event2,
gdouble *distance);
GDK_AVAILABLE_IN_ALL
gboolean gdk_events_get_angle (GdkEvent *event1,
GdkEvent *event2,
gdouble *angle);
GDK_AVAILABLE_IN_ALL
gboolean gdk_events_get_center (GdkEvent *event1,
GdkEvent *event2,
gdouble *x,
gdouble *y);
GDK_AVAILABLE_IN_ALL
void gdk_event_handler_set (GdkEventFunc func,
gpointer data,
GDestroyNotify notify);
GDK_AVAILABLE_IN_ALL
void gdk_event_set_display (GdkEvent *event,
GdkDisplay *display);
GDK_AVAILABLE_IN_ALL
GdkDisplay *gdk_event_get_display (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkEventSequence *gdk_event_get_event_sequence (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkEventType gdk_event_get_event_type (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkSeat *gdk_event_get_seat (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
void gdk_set_show_events (gboolean show_events);
GDK_AVAILABLE_IN_ALL
gboolean gdk_get_show_events (void);
GDK_AVAILABLE_IN_ALL
GdkDeviceTool *gdk_event_get_device_tool (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
void gdk_event_set_device_tool (GdkEvent *event,
GdkDeviceTool *tool);
GDK_AVAILABLE_IN_ALL
int gdk_event_get_scancode (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_pointer_emulated (GdkEvent *event);
GDK_AVAILABLE_IN_ALL
void gdk_event_set_user_data (GdkEvent *event,
GObject *user_data);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_is_sent (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
GdkDrop * gdk_event_get_drop (const GdkEvent *event);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_crossing_mode (const GdkEvent *event,
GdkCrossingMode *mode);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_crossing_detail (const GdkEvent *event,
GdkNotifyType *detail);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_touchpad_gesture_phase (const GdkEvent *event,
GdkTouchpadGesturePhase *phase);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_touchpad_gesture_n_fingers (const GdkEvent *event,
guint *n_fingers);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_touchpad_deltas (const GdkEvent *event,
double *dx,
double *dy);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_touchpad_angle_delta (const GdkEvent *event,
double *delta);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_touchpad_scale (const GdkEvent *event,
double *scale);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_touch_emulating_pointer (const GdkEvent *event,
gboolean *emulating);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_grab_surface (const GdkEvent *event,
GdkSurface **surface);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_focus_in (const GdkEvent *event,
gboolean *focus_in);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_pad_group_mode (const GdkEvent *event,
guint *group,
guint *mode);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_pad_button (const GdkEvent *event,
guint *button);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_pad_axis_value (const GdkEvent *event,
guint *index,
gdouble *value);
GDK_AVAILABLE_IN_ALL
gboolean gdk_event_get_axes (GdkEvent *event,
gdouble **axes,
guint *n_axes);
GDK_AVAILABLE_IN_ALL
GList * gdk_event_get_motion_history (const GdkEvent *event);
G_END_DECLS
#endif /* __GDK_EVENTS_H__ */