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b9cde6f8ea
Similar to how we keep motion history for compressed events, keep scroll history for compressed scroll events.
623 lines
23 KiB
C
623 lines
23 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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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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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __GDK_EVENTS_PRIVATE_H__
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#define __GDK_EVENTS_PRIVATE_H__
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#include <gdk/gdktypes.h>
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#include <gdk/gdkdrag.h>
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#include <gdk/gdkdevice.h>
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#include <gdk/gdkdevicetool.h>
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G_BEGIN_DECLS
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#define GDK_EVENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_EVENT, GdkEventClass))
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typedef struct _GdkEventClass GdkEventClass;
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/*< private >
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* GdkEvent:
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* @ref_count: the reference count of the event
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* @event_type: the specialized event type
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* @surface: the surface of the event
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* @device: the device of the event
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* @source_device: the source device
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* @time: a serial identifier of the event that can be used to order
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* two events
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* @flags: event flags
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*
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* The abstract type for all windowing system events.
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*/
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struct _GdkEvent
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{
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GTypeInstance parent_instance;
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grefcount ref_count;
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/* Specialised event type */
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GdkEventType event_type;
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/* The surface of the event */
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GdkSurface *surface;
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/* The devices associated to the event */
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GdkDevice *device;
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GdkDevice *source_device;
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guint32 time;
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guint16 flags;
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};
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/*< private >
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* GdkEventClass:
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* @finalize: a function called when the last reference held on an event is
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* released; implementations of GdkEvent must chain up to the parent class
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*
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* The base class for events.
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*/
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struct _GdkEventClass
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{
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GTypeClass parent_class;
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void (* finalize) (GdkEvent *event);
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GdkModifierType (* get_state) (GdkEvent *event);
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gboolean (* get_position) (GdkEvent *event,
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double *x,
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double *y);
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GdkEventSequence * (* get_sequence) (GdkEvent *event);
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GdkDeviceTool * (* get_tool) (GdkEvent *event);
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gboolean (* get_axes) (GdkEvent *event,
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double **axes,
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guint *n_axes);
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};
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/*
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* GdkDeleteEvent:
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*
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* Generated when a surface is deleted.
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*/
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struct _GdkDeleteEvent
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{
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GdkEvent parent_instance;
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};
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/*
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* GdkMotionEvent:
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* @state: (type GdkModifierType): a bit-mask representing the state of
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* the modifier keys (e.g. Control, Shift and Alt) set during the motion
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* event. See #GdkModifierType.
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* @x: the x coordinate of the pointer relative to the surface.
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* @y: the y coordinate of the pointer relative to the surface.
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* @axes: @x, @y translated to the axes of @device, or %NULL if @device is
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* the mouse.
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* @history: (element-type GdkTimeCoord): a list of time and coordinates
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* for other motion events that were compressed before delivering the
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* current event
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*
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* Generated when the pointer moves.
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*/
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struct _GdkMotionEvent
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{
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GdkEvent parent_instance;
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GdkModifierType state;
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double x;
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double y;
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double *axes;
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GdkDeviceTool *tool;
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GArray *history; /* <GdkTimeCoord> */
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};
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/*
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* GdkButtonEvent:
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* @state: (type GdkModifierType): a bit-mask representing the state of
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* the modifier keys (e.g. Control, Shift and Alt) and the pointer
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* buttons. See #GdkModifierType.
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* @button: the button which was pressed or released, numbered from 1 to 5.
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* Normally button 1 is the left mouse button, 2 is the middle button,
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* and 3 is the right button. On 2-button mice, the middle button can
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* often be simulated by pressing both mouse buttons together.
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* @x: the x coordinate of the pointer relative to the surface.
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* @y: the y coordinate of the pointer relative to the surface.
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* @axes: @x, @y translated to the axes of @device, or %NULL if @device is
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* the mouse.
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* @tool: a #GdkDeviceTool
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*
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* Used for button press and button release events. The
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* @type field will be one of %GDK_BUTTON_PRESS or %GDK_BUTTON_RELEASE,
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*/
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struct _GdkButtonEvent
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{
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GdkEvent parent_instance;
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GdkModifierType state;
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guint button;
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double x;
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double y;
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double *axes;
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GdkDeviceTool *tool;
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};
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/*
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* GdkTouchEvent:
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* @state: (type GdkModifierType): a bit-mask representing the state of
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* the modifier keys (e.g. Control, Shift and Alt) and the pointer
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* buttons. See #GdkModifierType
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* @x: the x coordinate of the pointer relative to the surface
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* @y: the y coordinate of the pointer relative to the surface
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* @axes: @x, @y translated to the axes of the event's device, or %NULL
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* if @device is the mouse
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* @sequence: the event sequence that the event belongs to
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* @emulated: whether the event is the result of a pointer emulation
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*
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* Used for touch events.
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* @type field will be one of %GDK_TOUCH_BEGIN, %GDK_TOUCH_UPDATE,
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* %GDK_TOUCH_END or %GDK_TOUCH_CANCEL.
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*
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* Touch events are grouped into sequences by means of the @sequence
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* field, which can also be obtained with gdk_event_get_event_sequence().
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* Each sequence begins with a %GDK_TOUCH_BEGIN event, followed by
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* any number of %GDK_TOUCH_UPDATE events, and ends with a %GDK_TOUCH_END
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* (or %GDK_TOUCH_CANCEL) event. With multitouch devices, there may be
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* several active sequences at the same time.
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*/
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struct _GdkTouchEvent
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{
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GdkEvent parent_instance;
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GdkModifierType state;
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double x;
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double y;
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double *axes;
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GdkEventSequence *sequence;
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gboolean touch_emulating;
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gboolean pointer_emulated;
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};
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/*
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* GdkScrollEvent:
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* @x: the x coordinate of the pointer relative to the surface.
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* @y: the y coordinate of the pointer relative to the surface.
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* @state: (type GdkModifierType): a bit-mask representing the state of
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* the modifier keys (e.g. Control, Shift and Alt) and the pointer
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* buttons. See #GdkModifierType.
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* @direction: the direction to scroll to (one of %GDK_SCROLL_UP,
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* %GDK_SCROLL_DOWN, %GDK_SCROLL_LEFT, %GDK_SCROLL_RIGHT or
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* %GDK_SCROLL_SMOOTH).
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* @delta_x: the x coordinate of the scroll delta
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* @delta_y: the y coordinate of the scroll delta
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* @pointer_emulated: whether the scroll event was the result of
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* a pointer emulation
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* @tool: a #GdkDeviceTool
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* @history: (element-type GdkScrollHistory): array of times and deltas
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* for other scroll events that were compressed before delivering the
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* current event
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*
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* Generated from button presses for the buttons 4 to 7. Wheel mice are
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* usually configured to generate button press events for buttons 4 and 5
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* when the wheel is turned.
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*
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* Some GDK backends can also generate “smooth” scroll events, which
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* can be recognized by the %GDK_SCROLL_SMOOTH scroll direction. For
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* these, the scroll deltas can be obtained with
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* gdk_event_get_scroll_deltas().
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*/
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struct _GdkScrollEvent
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{
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GdkEvent parent_instance;
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GdkModifierType state;
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GdkScrollDirection direction;
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double delta_x;
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double delta_y;
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gboolean pointer_emulated;
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gboolean is_stop;
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GdkDeviceTool *tool;
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GArray *history; /* <GdkScrollHistory> */
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};
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/*
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* GdkTranslatedKey:
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* @keyval: the translated key symbol
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* @consumed: the consumed modifiers
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* @layout: the keyboard layout
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* @level: the layout level
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*
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* Describes a translated key code.
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*/
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typedef struct {
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guint keyval;
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GdkModifierType consumed;
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guint layout;
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guint level;
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} GdkTranslatedKey;
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/*
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* GdkKeyEvent:
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* @state: (type GdkModifierType): a bit-mask representing the state of
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* the modifier keys (e.g. Control, Shift and Alt) and the pointer
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* buttons. See #GdkModifierType.
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* @keycode: the raw code of the key that was pressed or released.
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* @translated: the result of translating @keycode. First with the full
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* @state, then while ignoring Caps Lock.
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*
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* Describes a key press or key release event.
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*/
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struct _GdkKeyEvent
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{
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GdkEvent parent_instance;
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GdkModifierType state;
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guint32 keycode;
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gboolean key_is_modifier;
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GdkTranslatedKey translated[2];
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};
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/*
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* GdkCrossingEvent:
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* @state: (type GdkModifierType): a bit-mask representing the state of
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* the modifier keys (e.g. Control, Shift and Alt) and the pointer
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* buttons. See #GdkModifierType.
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* @mode: the crossing mode (%GDK_CROSSING_NORMAL, %GDK_CROSSING_GRAB,
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* %GDK_CROSSING_UNGRAB, %GDK_CROSSING_GTK_GRAB, %GDK_CROSSING_GTK_UNGRAB or
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* %GDK_CROSSING_STATE_CHANGED). %GDK_CROSSING_GTK_GRAB, %GDK_CROSSING_GTK_UNGRAB,
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* and %GDK_CROSSING_STATE_CHANGED were added in 2.14 and are always synthesized,
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* never native.
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* @x: the x coordinate of the pointer relative to the surface.
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* @y: the y coordinate of the pointer relative to the surface.
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* @detail: the kind of crossing that happened (%GDK_NOTIFY_INFERIOR,
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* %GDK_NOTIFY_ANCESTOR, %GDK_NOTIFY_VIRTUAL, %GDK_NOTIFY_NONLINEAR or
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* %GDK_NOTIFY_NONLINEAR_VIRTUAL).
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* @focus: %TRUE if @surface is the focus surface or an inferior.
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* @child_surface: the surface that was entered or left.
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*
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* Generated when the pointer enters or leaves a surface.
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*/
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struct _GdkCrossingEvent
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{
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GdkEvent parent_instance;
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GdkModifierType state;
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GdkCrossingMode mode;
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double x;
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double y;
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GdkNotifyType detail;
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gboolean focus;
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GdkSurface *child_surface;
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};
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/*
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* GdkFocusEvent:
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* @in: %TRUE if the surface has gained the keyboard focus, %FALSE if
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* it has lost the focus.
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* @mode: the crossing mode
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* @detail: the kind of crossing that happened
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*
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* Describes a change of keyboard focus.
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*/
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struct _GdkFocusEvent
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{
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GdkEvent parent_instance;
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gboolean focus_in;
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};
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/*
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* GdkConfigureEvent:
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* @x: the new x coordinate of the surface, relative to its parent.
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* @y: the new y coordinate of the surface, relative to its parent.
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* @width: the new width of the surface.
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* @height: the new height of the surface.
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*
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* Generated when a surface size or position has changed.
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*/
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struct _GdkConfigureEvent
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{
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GdkEvent parent_instance;
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int x;
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int y;
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int width;
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int height;
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};
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/*
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* GdkProximityEvent:
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* @tool: the #GdkDeviceTool associated to the event
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*
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* A proximity event indicates that a tool of a graphic tablet, or similar
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* devices that report proximity, has moved in or out of contact with the
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* tablet, or perhaps that the user’s finger has moved in or out of contact
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* with a touch screen.
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*/
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struct _GdkProximityEvent
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{
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GdkEvent parent_instance;
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GdkDeviceTool *tool;
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};
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/*
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* GdkGrabBrokenEvent:
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* @keyboard: %TRUE if a keyboard grab was broken, %FALSE if a pointer
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* grab was broken
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* @implicit: %TRUE if the broken grab was implicit
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* @grab_surface: If this event is caused by another grab in the same
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* application, @grab_surface contains the new grab surface. Otherwise
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* @grab_surface is %NULL.
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*
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* Generated when a pointer or keyboard grab is broken. On X11, this happens
|
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* when the grab surface becomes unviewable (i.e. it or one of its ancestors
|
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* is unmapped), or if the same application grabs the pointer or keyboard
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* again. Note that implicit grabs (which are initiated by button presses)
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* can also cause #GdkGrabBrokenEvent events.
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*/
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struct _GdkGrabBrokenEvent
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{
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GdkEvent parent_instance;
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gboolean keyboard;
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gboolean implicit;
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GdkSurface *grab_surface;
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};
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/*
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* GdkDNDEvent:
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* @drop: the #GdkDrop for the current DND operation.
|
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* @x: the X coordinate of the pointer
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* @y: the Y coordinate of the pointer
|
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*
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* Generated during DND operations.
|
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*/
|
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struct _GdkDNDEvent
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{
|
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GdkEvent parent_instance;
|
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GdkDrop *drop;
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double x;
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||
double y;
|
||
};
|
||
|
||
/*
|
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* GdkTouchpadEvent:
|
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* @state: (type GdkModifierType): a bit-mask representing the state of
|
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* the modifier keys (e.g. Control, Shift and Alt) and the pointer
|
||
* buttons. See #GdkModifierType.
|
||
* @phase: (type GdkTouchpadGesturePhase): the current phase of the gesture
|
||
* @n_fingers: The number of fingers triggering the pinch
|
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* @time: the time of the event in milliseconds
|
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* @x: The X coordinate of the pointer
|
||
* @y: The Y coordinate of the pointer
|
||
* @dx: Movement delta in the X axis of the swipe focal point
|
||
* @dy: Movement delta in the Y axis of the swipe focal point
|
||
* @angle_delta: For pinch events, the angle change in radians, negative angles
|
||
* denote counter-clockwise movements
|
||
* @scale: For pinch events, the current scale, relative to that at the time of
|
||
* the corresponding %GDK_TOUCHPAD_GESTURE_PHASE_BEGIN event
|
||
*
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||
* Generated during touchpad gestures.
|
||
*/
|
||
struct _GdkTouchpadEvent
|
||
{
|
||
GdkEvent parent_instance;
|
||
|
||
GdkModifierType state;
|
||
gint8 phase;
|
||
gint8 n_fingers;
|
||
double x;
|
||
double y;
|
||
double dx;
|
||
double dy;
|
||
double angle_delta;
|
||
double scale;
|
||
};
|
||
|
||
struct _GdkPadEvent
|
||
{
|
||
GdkEvent parent_instance;
|
||
|
||
guint group;
|
||
guint mode;
|
||
guint button;
|
||
guint index;
|
||
double value;
|
||
};
|
||
|
||
void gdk_event_init_types (void);
|
||
|
||
GdkEvent * gdk_button_event_new (GdkEventType type,
|
||
GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
GdkDeviceTool *tool,
|
||
guint32 time,
|
||
GdkModifierType state,
|
||
guint button,
|
||
double x,
|
||
double y,
|
||
double *axes);
|
||
|
||
GdkEvent * gdk_motion_event_new (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
GdkDeviceTool *tool,
|
||
guint32 time,
|
||
GdkModifierType state,
|
||
double x,
|
||
double y,
|
||
double *axes);
|
||
|
||
GdkEvent * gdk_crossing_event_new (GdkEventType type,
|
||
GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
GdkModifierType state,
|
||
double x,
|
||
double y,
|
||
GdkCrossingMode mode,
|
||
GdkNotifyType notify);
|
||
|
||
GdkEvent * gdk_proximity_event_new (GdkEventType type,
|
||
GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
GdkDeviceTool *tool,
|
||
guint32 time);
|
||
|
||
GdkEvent * gdk_key_event_new (GdkEventType type,
|
||
GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
guint keycode,
|
||
GdkModifierType modifiers,
|
||
gboolean is_modifier,
|
||
GdkTranslatedKey *translated,
|
||
GdkTranslatedKey *no_lock);
|
||
|
||
GdkEvent * gdk_focus_event_new (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
gboolean focus_in);
|
||
|
||
GdkEvent * gdk_configure_event_new (GdkSurface *surface,
|
||
int width,
|
||
int height);
|
||
|
||
GdkEvent * gdk_delete_event_new (GdkSurface *surface);
|
||
|
||
GdkEvent * gdk_scroll_event_new (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
GdkDeviceTool *tool,
|
||
guint32 time,
|
||
GdkModifierType state,
|
||
double delta_x,
|
||
double delta_y,
|
||
gboolean is_stop);
|
||
|
||
GdkEvent * gdk_scroll_event_new_discrete (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
GdkDeviceTool *tool,
|
||
guint32 time,
|
||
GdkModifierType state,
|
||
GdkScrollDirection direction,
|
||
gboolean emulated);
|
||
|
||
GdkEvent * gdk_touch_event_new (GdkEventType type,
|
||
GdkEventSequence *sequence,
|
||
GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
GdkModifierType state,
|
||
double x,
|
||
double y,
|
||
double *axes,
|
||
gboolean emulating);
|
||
|
||
GdkEvent * gdk_touchpad_event_new_swipe (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
GdkModifierType state,
|
||
GdkTouchpadGesturePhase phase,
|
||
double x,
|
||
double y,
|
||
int n_fingers,
|
||
double dx,
|
||
double dy);
|
||
|
||
GdkEvent * gdk_touchpad_event_new_pinch (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
GdkModifierType state,
|
||
GdkTouchpadGesturePhase phase,
|
||
double x,
|
||
double y,
|
||
int n_fingers,
|
||
double dx,
|
||
double dy,
|
||
double scale,
|
||
double angle_delta);
|
||
|
||
GdkEvent * gdk_pad_event_new_ring (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
guint group,
|
||
guint index,
|
||
guint mode,
|
||
double value);
|
||
|
||
GdkEvent * gdk_pad_event_new_strip (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
guint group,
|
||
guint index,
|
||
guint mode,
|
||
double value);
|
||
|
||
GdkEvent * gdk_pad_event_new_button (GdkEventType type,
|
||
GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
guint group,
|
||
guint button,
|
||
guint mode);
|
||
|
||
GdkEvent * gdk_pad_event_new_group_mode (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
guint group,
|
||
guint mode);
|
||
|
||
GdkEvent * gdk_dnd_event_new (GdkEventType type,
|
||
GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDrop *drop,
|
||
guint32 time,
|
||
double x,
|
||
double y);
|
||
|
||
GdkEvent * gdk_grab_broken_event_new (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
GdkSurface *grab_surface,
|
||
gboolean implicit);
|
||
|
||
GdkTranslatedKey * gdk_key_event_get_translated_key (GdkEvent *event,
|
||
gboolean no_lock);
|
||
|
||
G_END_DECLS
|
||
|
||
#endif /* __GDK_EVENTS_PRIVATE_H__ */
|