forked from AuroraMiddleware/gtk
3197 lines
83 KiB
C
3197 lines
83 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
|
||
* 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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#include "config.h"
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#include "gdkintl.h"
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#include "gdkeventsprivate.h"
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#include "gdkinternals.h"
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#include "gdkdisplayprivate.h"
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#include "gdkdragprivate.h"
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#include "gdkdropprivate.h"
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#include "gdkkeysprivate.h"
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#include "gdk-private.h"
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#include <gobject/gvaluecollector.h>
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#include <string.h>
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#include <math.h>
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/**
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* SECTION:events
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* @Short_description: Functions for handling events from the window system
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* @Title: Events
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*
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* This section describes functions dealing with events from the window
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* system.
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*
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* In GTK applications the events are handled automatically by toplevel
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* widgets and passed on to the event controllers of appropriate widgets,
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* so these functions are rarely needed.
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*/
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/**
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* GdkEvent: (ref-func gdk_event_ref) (unref-func gdk_event_unref)
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*
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* The GdkEvent struct contains only private fields and
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* should not be accessed directly.
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*/
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/**
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* GdkEventSequence:
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*
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* GdkEventSequence is an opaque type representing a sequence
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* of related touch events.
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*/
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static void
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value_event_init (GValue *value)
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{
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value->data[0].v_pointer = NULL;
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}
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static void
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value_event_free_value (GValue *value)
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{
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if (value->data[0].v_pointer != NULL)
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gdk_event_unref (value->data[0].v_pointer);
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}
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static void
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value_event_copy_value (const GValue *src,
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GValue *dst)
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{
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if (src->data[0].v_pointer != NULL)
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dst->data[0].v_pointer = gdk_event_ref (src->data[0].v_pointer);
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else
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dst->data[0].v_pointer = NULL;
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}
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static gpointer
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value_event_peek_pointer (const GValue *value)
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{
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return value->data[0].v_pointer;
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}
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static char *
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value_event_collect_value (GValue *value,
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guint n_collect_values,
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GTypeCValue *collect_values,
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guint collect_flags)
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{
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GdkEvent *event = collect_values[0].v_pointer;
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if (event == NULL)
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{
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value->data[0].v_pointer = NULL;
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return NULL;
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}
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if (event->parent_instance.g_class == NULL)
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return g_strconcat ("invalid unclassed GdkEvent pointer for "
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"value type '",
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G_VALUE_TYPE_NAME (value),
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"'",
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NULL);
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value->data[0].v_pointer = gdk_event_ref (event);
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return NULL;
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}
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static gchar *
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value_event_lcopy_value (const GValue *value,
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guint n_collect_values,
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GTypeCValue *collect_values,
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guint collect_flags)
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{
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GdkEvent **event_p = collect_values[0].v_pointer;
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if (event_p == NULL)
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return g_strconcat ("value location for '",
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G_VALUE_TYPE_NAME (value),
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"' passed as NULL",
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NULL);
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if (value->data[0].v_pointer == NULL)
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*event_p = NULL;
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else if (collect_flags & G_VALUE_NOCOPY_CONTENTS)
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*event_p = value->data[0].v_pointer;
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else
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*event_p = gdk_event_ref (value->data[0].v_pointer);
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return NULL;
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}
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static void
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gdk_event_finalize (GdkEvent *self)
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{
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GdkDisplay *display = gdk_event_get_display (self);
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if (display != NULL)
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_gdk_display_event_data_free (display, self);
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g_clear_object (&self->surface);
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g_clear_object (&self->device);
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g_clear_object (&self->source_device);
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g_type_free_instance ((GTypeInstance *) self);
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}
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static GdkModifierType
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gdk_event_real_get_state (GdkEvent *self)
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{
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return 0;
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}
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static gboolean
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gdk_event_real_get_position (GdkEvent *self,
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double *x,
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double *y)
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{
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*x = NAN;
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*y = NAN;
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return FALSE;
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}
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static GdkEventSequence *
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gdk_event_real_get_sequence (GdkEvent *self)
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{
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return NULL;
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}
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static GdkDeviceTool *
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gdk_event_real_get_tool (GdkEvent *self)
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{
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return NULL;
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}
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static gboolean
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gdk_event_real_get_axes (GdkEvent *self,
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double **axes,
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guint *n_axes)
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{
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return FALSE;
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}
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static void
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gdk_event_class_init (GdkEventClass *klass)
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{
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klass->finalize = gdk_event_finalize;
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klass->get_state = gdk_event_real_get_state;
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klass->get_position = gdk_event_real_get_position;
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klass->get_sequence = gdk_event_real_get_sequence;
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klass->get_tool = gdk_event_real_get_tool;
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klass->get_axes = gdk_event_real_get_axes;
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}
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static void
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gdk_event_init (GdkEvent *self)
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{
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g_ref_count_init (&self->ref_count);
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}
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GType
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gdk_event_get_type (void)
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{
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static volatile gsize event_type__volatile;
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if (g_once_init_enter (&event_type__volatile))
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{
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static const GTypeFundamentalInfo finfo = {
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(G_TYPE_FLAG_CLASSED |
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G_TYPE_FLAG_INSTANTIATABLE |
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G_TYPE_FLAG_DERIVABLE |
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G_TYPE_FLAG_DEEP_DERIVABLE),
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};
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static const GTypeValueTable value_table = {
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value_event_init,
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value_event_free_value,
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value_event_copy_value,
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value_event_peek_pointer,
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"p",
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value_event_collect_value,
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"p",
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value_event_lcopy_value,
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};
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const GTypeInfo event_info = {
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/* Class */
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sizeof (GdkEventClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gdk_event_class_init,
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(GClassFinalizeFunc) NULL,
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NULL,
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/* Instance */
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sizeof (GdkEvent),
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0,
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(GInstanceInitFunc) gdk_event_init,
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/* GValue */
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&value_table,
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};
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GType event_type =
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g_type_register_fundamental (g_type_fundamental_next (),
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g_intern_static_string ("GdkEvent"),
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&event_info, &finfo,
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G_TYPE_FLAG_ABSTRACT);
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g_once_init_leave (&event_type__volatile, event_type);
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}
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return event_type__volatile;
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}
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/*< private >
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* GdkEventTypeInfo:
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* @instance_size: the size of the instance of a GdkEvent subclass
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* @instance_init: (nullable): the function to initialize the instance data
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* @finalize: (nullable): the function to free the instance data
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* @get_state: (nullable): the function to retrieve the #GdkModifierType
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* associated to the event
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* @get_position: (nullable): the function to retrieve the event coordinates
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* @get_sequence: (nullable): the function to retrieve the event sequence
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* @get_tool: (nullable): the function to retrieve the event's device tool
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* @get_axes: (nullable): the function to retrieve the event's axes
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||
*
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||
* A structure used when registering a new GdkEvent type.
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||
*/
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||
typedef struct {
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gsize instance_size;
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||
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void (* instance_init) (GdkEvent *event);
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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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} GdkEventTypeInfo;
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static void
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gdk_event_generic_class_init (gpointer g_class,
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gpointer class_data)
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{
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GdkEventTypeInfo *info = class_data;
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GdkEventClass *event_class = g_class;
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/* Optional */
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if (info->finalize != NULL)
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event_class->finalize = info->finalize;
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if (info->get_state != NULL)
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event_class->get_state = info->get_state;
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if (info->get_position != NULL)
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event_class->get_position = info->get_position;
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if (info->get_sequence != NULL)
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event_class->get_sequence = info->get_sequence;
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if (info->get_tool != NULL)
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event_class->get_tool = info->get_tool;
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if (info->get_axes != NULL)
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event_class->get_axes = info->get_axes;
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g_free (info);
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}
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static GType
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gdk_event_type_register_static (const char *type_name,
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const GdkEventTypeInfo *type_info)
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{
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GTypeInfo info;
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info.class_size = sizeof (GdkEventClass);
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info.base_init = NULL;
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info.base_finalize = NULL;
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info.class_init = gdk_event_generic_class_init;
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info.class_finalize = NULL;
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info.class_data = g_memdup (type_info, sizeof (GdkEventTypeInfo));
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info.instance_size = type_info->instance_size;
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info.n_preallocs = 0;
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info.instance_init = (GInstanceInitFunc) type_info->instance_init;
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info.value_table = NULL;
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||
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return g_type_register_static (GDK_TYPE_EVENT, type_name, &info, 0);
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}
|
||
|
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/* Map GdkEventType to the appropriate GType */
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static GType gdk_event_types[GDK_EVENT_LAST];
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||
|
||
/*< private >
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||
* GDK_EVENT_TYPE_SLOT:
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* @ETYPE: a #GdkEventType
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*
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* Associates a #GdkEvent type with the given #GdkEventType enumeration.
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*
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* This macro can only be used with %GDK_DEFINE_EVENT_TYPE.
|
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*/
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#define GDK_EVENT_TYPE_SLOT(ETYPE) { gdk_event_types[ETYPE] = gdk_define_event_type_id; }
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||
|
||
/*< private >
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||
* GDK_DEFINE_EVENT_TYPE:
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* @TypeName: the type name, in camel case
|
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* @type_name: the type name, in snake case
|
||
* @type_info: the address of the #GdkEventTypeInfo for the event type
|
||
* @_C_: custom code to call after registering the event type
|
||
*
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* Registers a new #GdkEvent subclass with the given @TypeName and @type_info.
|
||
*
|
||
* Similarly to %G_DEFINE_TYPE_WITH_CODE, this macro will generate a `get_type()`
|
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* function that registers the event type.
|
||
*
|
||
* You can specify code to be run after the type registration; the #GType of
|
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* the event is available in the `gdk_define_event_type_id` variable.
|
||
*/
|
||
#define GDK_DEFINE_EVENT_TYPE(TypeName, type_name, type_info, _C_) \
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||
GType \
|
||
type_name ## _get_type (void) \
|
||
{ \
|
||
static volatile gsize gdk_define_event_type_id__volatile; \
|
||
if (g_once_init_enter (&gdk_define_event_type_id__volatile)) \
|
||
{ \
|
||
GType gdk_define_event_type_id = \
|
||
gdk_event_type_register_static (g_intern_static_string (#TypeName), type_info); \
|
||
{ _C_ } \
|
||
g_once_init_leave (&gdk_define_event_type_id__volatile, gdk_define_event_type_id); \
|
||
} \
|
||
return gdk_define_event_type_id__volatile; \
|
||
}
|
||
|
||
#define GDK_EVENT_SUPER(event) \
|
||
((GdkEventClass *) g_type_class_peek (g_type_parent (G_TYPE_FROM_INSTANCE (event))))
|
||
|
||
/*< private >
|
||
* gdk_event_alloc:
|
||
* @event_type: the #GdkEventType to allocate
|
||
* @surface: (nullable): the #GdkSurface of the event
|
||
* @device: (nullable): the #GdkDevice of the event
|
||
* @source_device: (nullable): the source #GdkDevice of the event
|
||
* @time_: the event serial
|
||
*
|
||
* Allocates a #GdkEvent for the given @event_type, and sets its
|
||
* common fields with the given parameters.
|
||
*
|
||
* Returns: (transfer full): the newly allocated #GdkEvent instance
|
||
*/
|
||
static gpointer
|
||
gdk_event_alloc (GdkEventType event_type,
|
||
GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time_)
|
||
{
|
||
g_assert (event_type >= GDK_DELETE && event_type < GDK_EVENT_LAST);
|
||
g_assert (gdk_event_types[event_type] != G_TYPE_INVALID);
|
||
|
||
GdkEvent *event = (GdkEvent *) g_type_create_instance (gdk_event_types[event_type]);
|
||
|
||
GDK_NOTE (EVENTS, {
|
||
char *str = g_enum_to_string (GDK_TYPE_EVENT_TYPE, event_type);
|
||
g_message ("Allocating a new %s for event type %s",
|
||
g_type_name (gdk_event_types[event_type]), str);
|
||
g_free (str);
|
||
});
|
||
|
||
event->event_type = event_type;
|
||
event->surface = surface != NULL ? g_object_ref (surface) : NULL;
|
||
event->device = device != NULL ? g_object_ref (device) : NULL;
|
||
event->source_device = source_device != NULL ? g_object_ref (source_device) : NULL;
|
||
event->time = time_;
|
||
|
||
return event;
|
||
}
|
||
|
||
static void
|
||
gdk_event_init_types_once (void)
|
||
{
|
||
g_type_ensure (GDK_TYPE_BUTTON_EVENT);
|
||
g_type_ensure (GDK_TYPE_CONFIGURE_EVENT);
|
||
g_type_ensure (GDK_TYPE_CROSSING_EVENT);
|
||
g_type_ensure (GDK_TYPE_DELETE_EVENT);
|
||
g_type_ensure (GDK_TYPE_DND_EVENT);
|
||
g_type_ensure (GDK_TYPE_FOCUS_EVENT);
|
||
g_type_ensure (GDK_TYPE_GRAB_BROKEN_EVENT);
|
||
g_type_ensure (GDK_TYPE_KEY_EVENT);
|
||
g_type_ensure (GDK_TYPE_MOTION_EVENT);
|
||
g_type_ensure (GDK_TYPE_PAD_EVENT);
|
||
g_type_ensure (GDK_TYPE_PROXIMITY_EVENT);
|
||
g_type_ensure (GDK_TYPE_SCROLL_EVENT);
|
||
g_type_ensure (GDK_TYPE_TOUCH_EVENT);
|
||
g_type_ensure (GDK_TYPE_TOUCHPAD_EVENT);
|
||
}
|
||
|
||
/*< private >
|
||
* gdk_event_init_types:
|
||
*
|
||
* Initializes all GdkEvent types.
|
||
*/
|
||
void
|
||
gdk_event_init_types (void)
|
||
{
|
||
static volatile gsize event_types__volatile;
|
||
|
||
if (g_once_init_enter (&event_types__volatile))
|
||
{
|
||
gboolean initialized = FALSE;
|
||
|
||
gdk_event_init_types_once ();
|
||
initialized = TRUE;
|
||
|
||
g_once_init_leave (&event_types__volatile, initialized);
|
||
}
|
||
}
|
||
|
||
#ifdef G_ENABLE_DEBUG
|
||
static gboolean
|
||
check_event_sanity (GdkEvent *event)
|
||
{
|
||
if (event->device != NULL &&
|
||
gdk_surface_get_display (event->surface) != gdk_device_get_display (event->device))
|
||
{
|
||
char *type = g_enum_to_string (GDK_TYPE_EVENT_TYPE, event->event_type);
|
||
g_warning ("Event of type %s with mismatched device display", type);
|
||
g_free (type);
|
||
return FALSE;
|
||
}
|
||
|
||
if (event->source_device != NULL &&
|
||
gdk_surface_get_display (event->surface) != gdk_device_get_display (event->source_device))
|
||
{
|
||
char *type = g_enum_to_string (GDK_TYPE_EVENT_TYPE, event->event_type);
|
||
g_warning ("Event of type %s with mismatched source device display", type);
|
||
g_free (type);
|
||
return FALSE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
#endif
|
||
|
||
void
|
||
_gdk_event_emit (GdkEvent *event)
|
||
{
|
||
#ifdef G_ENABLE_DEBUG
|
||
if (!check_event_sanity (event))
|
||
return;
|
||
#endif
|
||
|
||
if (gdk_drag_handle_source_event (event))
|
||
return;
|
||
|
||
gdk_surface_handle_event (event);
|
||
}
|
||
|
||
/*********************************************
|
||
* Functions for maintaining the event queue *
|
||
*********************************************/
|
||
|
||
/**
|
||
* _gdk_event_queue_find_first:
|
||
* @display: a #GdkDisplay
|
||
*
|
||
* Find the first event on the queue that is not still
|
||
* being filled in.
|
||
*
|
||
* Returns: (nullable): Pointer to the list node for that event, or
|
||
* %NULL.
|
||
**/
|
||
GList*
|
||
_gdk_event_queue_find_first (GdkDisplay *display)
|
||
{
|
||
GList *tmp_list;
|
||
GList *pending_motion = NULL;
|
||
|
||
gboolean paused = display->event_pause_count > 0;
|
||
|
||
tmp_list = g_queue_peek_head_link (&display->queued_events);
|
||
while (tmp_list)
|
||
{
|
||
GdkEvent *event = tmp_list->data;
|
||
|
||
if ((event->flags & GDK_EVENT_PENDING) == 0 &&
|
||
(!paused || (event->flags & GDK_EVENT_FLUSHED) != 0))
|
||
{
|
||
if (pending_motion)
|
||
return pending_motion;
|
||
|
||
if (event->event_type == GDK_MOTION_NOTIFY && (event->flags & GDK_EVENT_FLUSHED) == 0)
|
||
pending_motion = tmp_list;
|
||
else
|
||
return tmp_list;
|
||
}
|
||
|
||
tmp_list = tmp_list->next;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/**
|
||
* _gdk_event_queue_append:
|
||
* @display: a #GdkDisplay
|
||
* @event: Event to append.
|
||
*
|
||
* Appends an event onto the tail of the event queue.
|
||
*
|
||
* Returns: the newly appended list node.
|
||
**/
|
||
GList *
|
||
_gdk_event_queue_append (GdkDisplay *display,
|
||
GdkEvent *event)
|
||
{
|
||
g_queue_push_tail (&display->queued_events, event);
|
||
|
||
return g_queue_peek_tail_link (&display->queued_events);
|
||
}
|
||
|
||
/**
|
||
* _gdk_event_queue_remove_link:
|
||
* @display: a #GdkDisplay
|
||
* @node: node to remove
|
||
*
|
||
* Removes a specified list node from the event queue.
|
||
**/
|
||
void
|
||
_gdk_event_queue_remove_link (GdkDisplay *display,
|
||
GList *node)
|
||
{
|
||
g_queue_unlink (&display->queued_events, node);
|
||
}
|
||
|
||
/**
|
||
* _gdk_event_unqueue:
|
||
* @display: a #GdkDisplay
|
||
*
|
||
* Removes and returns the first event from the event
|
||
* queue that is not still being filled in.
|
||
*
|
||
* Returns: (nullable): the event, or %NULL. Ownership is transferred
|
||
* to the caller.
|
||
**/
|
||
GdkEvent*
|
||
_gdk_event_unqueue (GdkDisplay *display)
|
||
{
|
||
GdkEvent *event = NULL;
|
||
GList *tmp_list;
|
||
|
||
tmp_list = _gdk_event_queue_find_first (display);
|
||
|
||
if (tmp_list)
|
||
{
|
||
event = tmp_list->data;
|
||
_gdk_event_queue_remove_link (display, tmp_list);
|
||
g_list_free_1 (tmp_list);
|
||
}
|
||
|
||
return event;
|
||
}
|
||
|
||
/*
|
||
* If the last N events in the event queue are smooth scroll events
|
||
* for the same surface and device, combine them into one.
|
||
*/
|
||
void
|
||
gdk_event_queue_handle_scroll_compression (GdkDisplay *display)
|
||
{
|
||
GList *l;
|
||
GdkSurface *surface = NULL;
|
||
GdkDevice *device = NULL;
|
||
GdkEvent *last_event = NULL;
|
||
GList *scrolls = NULL;
|
||
double delta_x, delta_y;
|
||
GArray *history = NULL;
|
||
GdkTimeCoord hist;
|
||
|
||
l = g_queue_peek_tail_link (&display->queued_events);
|
||
|
||
while (l)
|
||
{
|
||
GdkEvent *event = l->data;
|
||
|
||
if (event->flags & GDK_EVENT_PENDING)
|
||
break;
|
||
|
||
if (event->event_type != GDK_SCROLL ||
|
||
gdk_scroll_event_get_direction (event) != GDK_SCROLL_SMOOTH)
|
||
break;
|
||
|
||
if (surface != NULL &&
|
||
surface != event->surface)
|
||
break;
|
||
|
||
if (device != NULL &&
|
||
device != event->device)
|
||
break;
|
||
|
||
if (!last_event)
|
||
last_event = event;
|
||
|
||
surface = event->surface;
|
||
device = event->device;
|
||
scrolls = l;
|
||
|
||
l = l->prev;
|
||
}
|
||
|
||
delta_x = delta_y = 0;
|
||
|
||
while (scrolls && scrolls->next != NULL)
|
||
{
|
||
GdkEvent *event = scrolls->data;
|
||
GList *next = scrolls->next;
|
||
double dx, dy;
|
||
|
||
if (!history)
|
||
history = g_array_new (FALSE, TRUE, sizeof (GdkTimeCoord));
|
||
|
||
gdk_scroll_event_get_deltas (event, &dx, &dy);
|
||
delta_x += dx;
|
||
delta_y += dy;
|
||
|
||
memset (&hist, 0, sizeof (GdkTimeCoord));
|
||
hist.time = gdk_event_get_time (event);
|
||
hist.flags = GDK_AXIS_FLAG_DELTA_X | GDK_AXIS_FLAG_DELTA_Y;
|
||
hist.axes[GDK_AXIS_DELTA_X] = dx;
|
||
hist.axes[GDK_AXIS_DELTA_Y] = dy;
|
||
|
||
g_array_append_val (history, hist);
|
||
|
||
gdk_event_unref (event);
|
||
g_queue_delete_link (&display->queued_events, scrolls);
|
||
scrolls = next;
|
||
}
|
||
|
||
if (scrolls)
|
||
{
|
||
GdkEvent *old_event, *event;
|
||
double dx, dy;
|
||
|
||
old_event = scrolls->data;
|
||
|
||
gdk_scroll_event_get_deltas (old_event, &dx, &dy);
|
||
event = gdk_scroll_event_new (surface,
|
||
device,
|
||
gdk_event_get_source_device (old_event),
|
||
gdk_event_get_device_tool (old_event),
|
||
gdk_event_get_time (old_event),
|
||
gdk_event_get_modifier_state (old_event),
|
||
delta_x + dx,
|
||
delta_y + dy,
|
||
gdk_scroll_event_is_stop (old_event));
|
||
|
||
((GdkScrollEvent *)event)->history = history;
|
||
|
||
g_queue_delete_link (&display->queued_events, scrolls);
|
||
g_queue_push_tail (&display->queued_events, event);
|
||
}
|
||
|
||
if (g_queue_get_length (&display->queued_events) == 1 &&
|
||
g_queue_peek_head_link (&display->queued_events) == scrolls)
|
||
{
|
||
GdkFrameClock *clock = gdk_surface_get_frame_clock (surface);
|
||
if (clock) /* might be NULL if surface was destroyed */
|
||
gdk_frame_clock_request_phase (clock, GDK_FRAME_CLOCK_PHASE_FLUSH_EVENTS);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_motion_event_push_history (GdkEvent *event,
|
||
GdkEvent *history_event)
|
||
{
|
||
GdkMotionEvent *self = (GdkMotionEvent *) event;
|
||
GdkTimeCoord hist;
|
||
GdkDevice *device;
|
||
gint i, n_axes;
|
||
|
||
g_assert (GDK_IS_EVENT_TYPE (event, GDK_MOTION_NOTIFY));
|
||
g_assert (GDK_IS_EVENT_TYPE (history_event, GDK_MOTION_NOTIFY));
|
||
|
||
device = gdk_event_get_device (history_event);
|
||
n_axes = gdk_device_get_n_axes (device);
|
||
|
||
memset (&hist, 0, sizeof (GdkTimeCoord));
|
||
hist.time = gdk_event_get_time (history_event);
|
||
hist.flags = gdk_device_get_axes (device);
|
||
|
||
for (i = 0; i < n_axes; i++)
|
||
{
|
||
GdkAxisUse use = gdk_device_get_axis_use (device, i);
|
||
gdk_event_get_axis (history_event, use, &hist.axes[use]);
|
||
}
|
||
|
||
if (G_UNLIKELY (!self->history))
|
||
self->history = g_array_new (FALSE, TRUE, sizeof (GdkTimeCoord));
|
||
|
||
g_array_append_val (self->history, hist);
|
||
}
|
||
|
||
void
|
||
_gdk_event_queue_handle_motion_compression (GdkDisplay *display)
|
||
{
|
||
GList *tmp_list;
|
||
GList *pending_motions = NULL;
|
||
GdkSurface *pending_motion_surface = NULL;
|
||
GdkDevice *pending_motion_device = NULL;
|
||
GdkEvent *last_motion = NULL;
|
||
|
||
/* If the last N events in the event queue are motion notify
|
||
* events for the same surface, drop all but the last */
|
||
|
||
tmp_list = g_queue_peek_tail_link (&display->queued_events);
|
||
|
||
while (tmp_list)
|
||
{
|
||
GdkEvent *event = tmp_list->data;
|
||
|
||
if (event->flags & GDK_EVENT_PENDING)
|
||
break;
|
||
|
||
if (event->event_type != GDK_MOTION_NOTIFY)
|
||
break;
|
||
|
||
if (pending_motion_surface != NULL &&
|
||
pending_motion_surface != event->surface)
|
||
break;
|
||
|
||
if (pending_motion_device != NULL &&
|
||
pending_motion_device != event->device)
|
||
break;
|
||
|
||
if (!last_motion)
|
||
last_motion = event;
|
||
|
||
pending_motion_surface = event->surface;
|
||
pending_motion_device = event->device;
|
||
pending_motions = tmp_list;
|
||
|
||
tmp_list = tmp_list->prev;
|
||
}
|
||
|
||
while (pending_motions && pending_motions->next != NULL)
|
||
{
|
||
GList *next = pending_motions->next;
|
||
|
||
if (last_motion != NULL)
|
||
{
|
||
GdkModifierType state = gdk_event_get_modifier_state (last_motion);
|
||
|
||
if (state &
|
||
(GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK |
|
||
GDK_BUTTON4_MASK | GDK_BUTTON5_MASK))
|
||
gdk_motion_event_push_history (last_motion, pending_motions->data);
|
||
}
|
||
|
||
gdk_event_unref (pending_motions->data);
|
||
g_queue_delete_link (&display->queued_events, pending_motions);
|
||
pending_motions = next;
|
||
}
|
||
|
||
if (g_queue_get_length (&display->queued_events) == 1 &&
|
||
g_queue_peek_head_link (&display->queued_events) == pending_motions)
|
||
{
|
||
GdkFrameClock *clock = gdk_surface_get_frame_clock (pending_motion_surface);
|
||
if (clock) /* might be NULL if surface was destroyed */
|
||
gdk_frame_clock_request_phase (clock, GDK_FRAME_CLOCK_PHASE_FLUSH_EVENTS);
|
||
}
|
||
}
|
||
|
||
void
|
||
_gdk_event_queue_flush (GdkDisplay *display)
|
||
{
|
||
GList *tmp_list;
|
||
|
||
for (tmp_list = display->queued_events.head; tmp_list; tmp_list = tmp_list->next)
|
||
{
|
||
GdkEvent *event = tmp_list->data;
|
||
event->flags |= GDK_EVENT_FLUSHED;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gdk_event_ref:
|
||
* @event: a #GdkEvent
|
||
*
|
||
* Increase the ref count of @event.
|
||
*
|
||
* Returns: (transfer full): @event
|
||
*/
|
||
GdkEvent *
|
||
gdk_event_ref (GdkEvent *event)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), NULL);
|
||
|
||
g_ref_count_inc (&event->ref_count);
|
||
|
||
return event;
|
||
}
|
||
|
||
/**
|
||
* gdk_event_unref:
|
||
* @event: (transfer full): a #GdkEvent
|
||
*
|
||
* Decrease the ref count of @event, and free it
|
||
* if the last reference is dropped.
|
||
*/
|
||
void
|
||
gdk_event_unref (GdkEvent *event)
|
||
{
|
||
g_return_if_fail (GDK_IS_EVENT (event));
|
||
|
||
if (g_ref_count_dec (&event->ref_count))
|
||
GDK_EVENT_GET_CLASS (event)->finalize (event);
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_pointer_emulated:
|
||
* @event: a #GdkEvent
|
||
*
|
||
* Returns whether this event is an 'emulated' pointer event (typically
|
||
* from a touch event), as opposed to a real one.
|
||
*
|
||
* Returns: %TRUE if this event is emulated
|
||
*/
|
||
gboolean
|
||
gdk_event_get_pointer_emulated (GdkEvent *event)
|
||
{
|
||
switch ((int) event->event_type)
|
||
{
|
||
case GDK_TOUCH_BEGIN:
|
||
case GDK_TOUCH_END:
|
||
case GDK_TOUCH_UPDATE:
|
||
case GDK_TOUCH_CANCEL:
|
||
{
|
||
GdkTouchEvent *tevent = (GdkTouchEvent *) event;
|
||
|
||
return tevent->pointer_emulated;
|
||
}
|
||
|
||
case GDK_SCROLL:
|
||
case GDK_SCROLL_SMOOTH:
|
||
{
|
||
GdkScrollEvent *sevent = (GdkScrollEvent *) event;
|
||
|
||
return sevent->pointer_emulated;
|
||
}
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_axis:
|
||
* @event: a #GdkEvent
|
||
* @axis_use: the axis use to look for
|
||
* @value: (out): location to store the value found
|
||
*
|
||
* Extract the axis value for a particular axis use from
|
||
* an event structure.
|
||
*
|
||
* Returns: %TRUE if the specified axis was found, otherwise %FALSE
|
||
**/
|
||
gboolean
|
||
gdk_event_get_axis (GdkEvent *event,
|
||
GdkAxisUse axis_use,
|
||
double *value)
|
||
{
|
||
double *axes;
|
||
guint n_axes;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), FALSE);
|
||
|
||
if (axis_use == GDK_AXIS_X || axis_use == GDK_AXIS_Y)
|
||
{
|
||
double x, y;
|
||
|
||
if (!gdk_event_get_position (event, &x, &y))
|
||
return FALSE;
|
||
|
||
if (axis_use == GDK_AXIS_X && value != NULL)
|
||
*value = x;
|
||
if (axis_use == GDK_AXIS_Y && value != NULL)
|
||
*value = y;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
if (!gdk_event_get_axes (event, &axes, &n_axes))
|
||
return FALSE;
|
||
|
||
if (axis_use >= gdk_device_get_n_axes (event->device))
|
||
return FALSE;
|
||
|
||
return gdk_device_get_axis (event->device, axes, axis_use, value);
|
||
}
|
||
|
||
/**
|
||
* gdk_event_triggers_context_menu:
|
||
* @event: a #GdkEvent, currently only button events are meaningful values
|
||
*
|
||
* This function returns whether a #GdkEventButton should trigger a
|
||
* context menu, according to platform conventions. The right mouse
|
||
* button always triggers context menus.
|
||
*
|
||
* This function should always be used instead of simply checking for
|
||
* event->button == %GDK_BUTTON_SECONDARY.
|
||
*
|
||
* Returns: %TRUE if the event should trigger a context menu.
|
||
**/
|
||
gboolean
|
||
gdk_event_triggers_context_menu (GdkEvent *event)
|
||
{
|
||
g_return_val_if_fail (event != NULL, FALSE);
|
||
|
||
if (event->event_type == GDK_BUTTON_PRESS)
|
||
{
|
||
GdkButtonEvent *bevent = (GdkButtonEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_SURFACE (event->surface), FALSE);
|
||
|
||
if (bevent->button == GDK_BUTTON_SECONDARY &&
|
||
! (bevent->state & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK)))
|
||
return TRUE;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_events_get_axis_distances (GdkEvent *event1,
|
||
GdkEvent *event2,
|
||
gdouble *x_distance,
|
||
gdouble *y_distance,
|
||
gdouble *distance)
|
||
{
|
||
gdouble x1, x2, y1, y2;
|
||
gdouble xd, yd;
|
||
|
||
if (!gdk_event_get_position (event1, &x1, &y1) ||
|
||
!gdk_event_get_position (event2, &x2, &y2))
|
||
return FALSE;
|
||
|
||
xd = x2 - x1;
|
||
yd = y2 - y1;
|
||
|
||
if (x_distance)
|
||
*x_distance = xd;
|
||
|
||
if (y_distance)
|
||
*y_distance = yd;
|
||
|
||
if (distance)
|
||
*distance = sqrt ((xd * xd) + (yd * yd));
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/**
|
||
* gdk_events_get_distance:
|
||
* @event1: first #GdkEvent
|
||
* @event2: second #GdkEvent
|
||
* @distance: (out): return location for the distance
|
||
*
|
||
* If both events have X/Y information, the distance between both coordinates
|
||
* (as in a straight line going from @event1 to @event2) will be returned.
|
||
*
|
||
* Returns: %TRUE if the distance could be calculated.
|
||
**/
|
||
gboolean
|
||
gdk_events_get_distance (GdkEvent *event1,
|
||
GdkEvent *event2,
|
||
gdouble *distance)
|
||
{
|
||
return gdk_events_get_axis_distances (event1, event2,
|
||
NULL, NULL,
|
||
distance);
|
||
}
|
||
|
||
/**
|
||
* gdk_events_get_angle:
|
||
* @event1: first #GdkEvent
|
||
* @event2: second #GdkEvent
|
||
* @angle: (out): return location for the relative angle between both events
|
||
*
|
||
* If both events contain X/Y information, this function will return %TRUE
|
||
* and return in @angle the relative angle from @event1 to @event2. The rotation
|
||
* direction for positive angles is from the positive X axis towards the positive
|
||
* Y axis.
|
||
*
|
||
* Returns: %TRUE if the angle could be calculated.
|
||
**/
|
||
gboolean
|
||
gdk_events_get_angle (GdkEvent *event1,
|
||
GdkEvent *event2,
|
||
gdouble *angle)
|
||
{
|
||
gdouble x_distance, y_distance, distance;
|
||
|
||
if (!gdk_events_get_axis_distances (event1, event2,
|
||
&x_distance, &y_distance,
|
||
&distance))
|
||
return FALSE;
|
||
|
||
if (angle)
|
||
{
|
||
*angle = atan2 (x_distance, y_distance);
|
||
|
||
/* Invert angle */
|
||
*angle = (2 * G_PI) - *angle;
|
||
|
||
/* Shift it 90° */
|
||
*angle += G_PI / 2;
|
||
|
||
/* And constraint it to 0°-360° */
|
||
*angle = fmod (*angle, 2 * G_PI);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/**
|
||
* gdk_events_get_center:
|
||
* @event1: first #GdkEvent
|
||
* @event2: second #GdkEvent
|
||
* @x: (out): return location for the X coordinate of the center
|
||
* @y: (out): return location for the Y coordinate of the center
|
||
*
|
||
* If both events contain X/Y information, the center of both coordinates
|
||
* will be returned in @x and @y.
|
||
*
|
||
* Returns: %TRUE if the center could be calculated.
|
||
**/
|
||
gboolean
|
||
gdk_events_get_center (GdkEvent *event1,
|
||
GdkEvent *event2,
|
||
gdouble *x,
|
||
gdouble *y)
|
||
{
|
||
gdouble x1, x2, y1, y2;
|
||
|
||
if (!gdk_event_get_position (event1, &x1, &y1) ||
|
||
!gdk_event_get_position (event2, &x2, &y2))
|
||
return FALSE;
|
||
|
||
if (x)
|
||
*x = (x2 + x1) / 2;
|
||
|
||
if (y)
|
||
*y = (y2 + y1) / 2;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static GdkEventSequence *
|
||
gdk_event_sequence_copy (GdkEventSequence *sequence)
|
||
{
|
||
return sequence;
|
||
}
|
||
|
||
static void
|
||
gdk_event_sequence_free (GdkEventSequence *sequence)
|
||
{
|
||
/* Nothing to free here */
|
||
}
|
||
|
||
G_DEFINE_BOXED_TYPE (GdkEventSequence, gdk_event_sequence,
|
||
gdk_event_sequence_copy,
|
||
gdk_event_sequence_free)
|
||
|
||
|
||
|
||
/**
|
||
* gdk_event_get_axes:
|
||
* @event: a #GdkEvent
|
||
* @axes: (transfer none) (out) (array length=n_axes): the array of values for all axes
|
||
* @n_axes: (out): the length of array
|
||
*
|
||
* Extracts all axis values from an event.
|
||
*
|
||
* Returns: %TRUE on success, otherwise %FALSE
|
||
**/
|
||
gboolean
|
||
gdk_event_get_axes (GdkEvent *event,
|
||
double **axes,
|
||
guint *n_axes)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), FALSE);
|
||
|
||
return GDK_EVENT_GET_CLASS (event)->get_axes (event, axes, n_axes);
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_event_type:
|
||
* @event: a #GdkEvent
|
||
*
|
||
* Retrieves the type of the event.
|
||
*
|
||
* Returns: a #GdkEventType
|
||
*/
|
||
GdkEventType
|
||
gdk_event_get_event_type (GdkEvent *event)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
|
||
return event->event_type;
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_surface:
|
||
* @event: a #GdkEvent
|
||
*
|
||
* Extracts the #GdkSurface associated with an event.
|
||
*
|
||
* Returns: (transfer none): The #GdkSurface associated with the event
|
||
*/
|
||
GdkSurface *
|
||
gdk_event_get_surface (GdkEvent *event)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), NULL);
|
||
|
||
return event->surface;
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_seat:
|
||
* @event: a #GdkEvent.
|
||
*
|
||
* Returns the seat that originated the event.
|
||
*
|
||
* Returns: (nullable) (transfer none): a #GdkSeat.
|
||
*/
|
||
GdkSeat *
|
||
gdk_event_get_seat (GdkEvent *event)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), NULL);
|
||
|
||
return event->device ? gdk_device_get_seat (event->device) : NULL;
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_device:
|
||
* @event: a #GdkEvent.
|
||
*
|
||
* Returns the device of an event.
|
||
*
|
||
* Returns: (nullable) (transfer none): a #GdkDevice.
|
||
*/
|
||
GdkDevice *
|
||
gdk_event_get_device (GdkEvent *event)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), NULL);
|
||
|
||
return event->device;
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_source_device:
|
||
* @event: a #GdkEvent
|
||
*
|
||
* This function returns the physical #GdkDevice that has triggered
|
||
* the event, falling back to the logical device, as returned by
|
||
* gdk_event_get_device(), if the event wasn’t caused by
|
||
* interaction with a hardware device. This may happen for example
|
||
* in synthesized crossing events after a #GdkSurface updates its
|
||
* geometry or a grab is acquired/released.
|
||
*
|
||
* If the event does not contain a device field, this function will
|
||
* return %NULL.
|
||
*
|
||
* Returns: (nullable) (transfer none): a #GdkDevice, or %NULL.
|
||
**/
|
||
GdkDevice *
|
||
gdk_event_get_source_device (GdkEvent *event)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), NULL);
|
||
|
||
if (event->source_device)
|
||
return event->source_device;
|
||
|
||
return event->device;
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_device_tool:
|
||
* @event: a #GdkEvent
|
||
*
|
||
* If the event was generated by a device that supports
|
||
* different tools (eg. a tablet), this function will
|
||
* return a #GdkDeviceTool representing the tool that
|
||
* caused the event. Otherwise, %NULL will be returned.
|
||
*
|
||
* Note: the #GdkDeviceTools will be constant during
|
||
* the application lifetime, if settings must be stored
|
||
* persistently across runs, see gdk_device_tool_get_serial()
|
||
*
|
||
* Returns: (transfer none) (nullable): The current device tool, or %NULL
|
||
**/
|
||
GdkDeviceTool *
|
||
gdk_event_get_device_tool (GdkEvent *event)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), NULL);
|
||
|
||
return GDK_EVENT_GET_CLASS (event)->get_tool (event);
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_time:
|
||
* @event: a #GdkEvent
|
||
*
|
||
* Returns the time stamp from @event, if there is one; otherwise
|
||
* returns #GDK_CURRENT_TIME.
|
||
*
|
||
* Returns: time stamp field from @event
|
||
**/
|
||
guint32
|
||
gdk_event_get_time (GdkEvent *event)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), GDK_CURRENT_TIME);
|
||
|
||
return event->time;
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_display:
|
||
* @event: a #GdkEvent
|
||
*
|
||
* Retrieves the #GdkDisplay associated to the @event.
|
||
*
|
||
* Returns: (transfer none) (nullable): a #GdkDisplay
|
||
*/
|
||
GdkDisplay *
|
||
gdk_event_get_display (GdkEvent *event)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), NULL);
|
||
|
||
if (event->surface)
|
||
return gdk_surface_get_display (event->surface);
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_event_sequence:
|
||
* @event: a #GdkEvent
|
||
*
|
||
* If @event is a touch event, returns the #GdkEventSequence
|
||
* to which the event belongs. Otherwise, return %NULL.
|
||
*
|
||
* Returns: (transfer none): the event sequence that the event belongs to
|
||
*/
|
||
GdkEventSequence *
|
||
gdk_event_get_event_sequence (GdkEvent *event)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), NULL);
|
||
|
||
return GDK_EVENT_GET_CLASS (event)->get_sequence (event);
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_modifier_state:
|
||
* @event: a #GdkEvent
|
||
*
|
||
* Returns the modifier state field of an event.
|
||
*
|
||
* Returns: the modifier state of @event
|
||
**/
|
||
GdkModifierType
|
||
gdk_event_get_modifier_state (GdkEvent *event)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
|
||
return GDK_EVENT_GET_CLASS (event)->get_state (event);
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_position:
|
||
* @event: a #GdkEvent
|
||
* @x: (out): location to put event surface x coordinate
|
||
* @y: (out): location to put event surface y coordinate
|
||
*
|
||
* Extract the event surface relative x/y coordinates from an event.
|
||
**/
|
||
gboolean
|
||
gdk_event_get_position (GdkEvent *event,
|
||
double *x,
|
||
double *y)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), FALSE);
|
||
|
||
return GDK_EVENT_GET_CLASS (event)->get_position (event, x, y);
|
||
}
|
||
|
||
/* {{{ GdkButtonEvent */
|
||
|
||
static void
|
||
gdk_button_event_finalize (GdkEvent *event)
|
||
{
|
||
GdkButtonEvent *self = (GdkButtonEvent *) event;
|
||
|
||
g_clear_object (&self->tool);
|
||
g_clear_pointer (&self->axes, g_free);
|
||
|
||
GDK_EVENT_SUPER (event)->finalize (event);
|
||
}
|
||
|
||
static GdkModifierType
|
||
gdk_button_event_get_state (GdkEvent *event)
|
||
{
|
||
GdkButtonEvent *self = (GdkButtonEvent *) event;
|
||
|
||
return self->state;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_button_event_get_position (GdkEvent *event,
|
||
double *x,
|
||
double *y)
|
||
{
|
||
GdkButtonEvent *self = (GdkButtonEvent *) event;
|
||
|
||
*x = self->x;
|
||
*y = self->y;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static GdkDeviceTool *
|
||
gdk_button_event_get_tool (GdkEvent *event)
|
||
{
|
||
GdkButtonEvent *self = (GdkButtonEvent *) event;
|
||
|
||
return self->tool;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_button_event_get_axes (GdkEvent *event,
|
||
double **axes,
|
||
guint *n_axes)
|
||
{
|
||
GdkButtonEvent *self = (GdkButtonEvent *) event;
|
||
GdkDevice *source_device = gdk_event_get_source_device (event);
|
||
|
||
if (source_device == NULL)
|
||
return FALSE;
|
||
|
||
*axes = self->axes;
|
||
*n_axes = gdk_device_get_n_axes (source_device);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static const GdkEventTypeInfo gdk_button_event_info = {
|
||
sizeof (GdkButtonEvent),
|
||
NULL,
|
||
gdk_button_event_finalize,
|
||
gdk_button_event_get_state,
|
||
gdk_button_event_get_position,
|
||
NULL,
|
||
gdk_button_event_get_tool,
|
||
gdk_button_event_get_axes,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkButtonEvent, gdk_button_event,
|
||
&gdk_button_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_BUTTON_PRESS)
|
||
GDK_EVENT_TYPE_SLOT (GDK_BUTTON_RELEASE))
|
||
|
||
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)
|
||
{
|
||
g_return_val_if_fail (type == GDK_BUTTON_PRESS ||
|
||
type == GDK_BUTTON_RELEASE, NULL);
|
||
|
||
GdkButtonEvent *self = gdk_event_alloc (type, surface, device, source_device, time);
|
||
|
||
self->tool = tool != NULL ? g_object_ref (tool) : NULL;
|
||
self->axes = axes;
|
||
self->state = state;
|
||
self->button = button;
|
||
self->x = x;
|
||
self->y = y;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
/**
|
||
* gdk_button_event_get_button:
|
||
* @event: (type GdkButtonEvent): a button event
|
||
*
|
||
* Extract the button number from a button event.
|
||
*
|
||
* Returns: the button of @event
|
||
**/
|
||
guint
|
||
gdk_button_event_get_button (GdkEvent *event)
|
||
{
|
||
GdkButtonEvent *self = (GdkButtonEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_BUTTON_PRESS) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_BUTTON_RELEASE), 0);
|
||
|
||
return self->button;
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkKeyEvent */
|
||
|
||
static GdkModifierType
|
||
gdk_key_event_get_state (GdkEvent *event)
|
||
{
|
||
GdkKeyEvent *self = (GdkKeyEvent *) event;
|
||
|
||
return self->state;
|
||
}
|
||
|
||
static const GdkEventTypeInfo gdk_key_event_info = {
|
||
sizeof (GdkKeyEvent),
|
||
NULL,
|
||
NULL,
|
||
gdk_key_event_get_state,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkKeyEvent, gdk_key_event,
|
||
&gdk_key_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_KEY_PRESS)
|
||
GDK_EVENT_TYPE_SLOT (GDK_KEY_RELEASE))
|
||
|
||
/*< private >
|
||
* gdk_key_event_new:
|
||
* @type: the event type, either %GDK_KEY_PRESS or %GDK_KEY_RELEASE
|
||
* @surface: the #GdkSurface of the event
|
||
* @device: the #GdkDevice related to the event
|
||
* @source_device: the source #GdkDevice related to the event
|
||
* @time: the event's timestamp
|
||
* @keycode: the keycode of the event
|
||
* @state: the modifiers state
|
||
* @is_modifier: whether the event is a modifiers only event
|
||
* @translated: the translated key data for the given @state
|
||
* @no_lock: the translated key data without the given @state
|
||
*
|
||
* Creates a new #GdkKeyEvent.
|
||
*
|
||
* Returns: (transfer full) (type GdkKeyEvent): the newly created #GdkEvent
|
||
*/
|
||
GdkEvent *
|
||
gdk_key_event_new (GdkEventType type,
|
||
GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
guint keycode,
|
||
GdkModifierType state,
|
||
gboolean is_modifier,
|
||
GdkTranslatedKey *translated,
|
||
GdkTranslatedKey *no_lock)
|
||
{
|
||
g_return_val_if_fail (type == GDK_KEY_PRESS ||
|
||
type == GDK_KEY_RELEASE, NULL);
|
||
|
||
GdkKeyEvent *self = gdk_event_alloc (type, surface, device, source_device, time);
|
||
GdkEvent *event = (GdkEvent *) self;
|
||
|
||
self->keycode = keycode;
|
||
self->state = state;
|
||
self->key_is_modifier = is_modifier;
|
||
self->translated[0] = *translated;
|
||
self->translated[1] = *no_lock;
|
||
|
||
return event;
|
||
}
|
||
|
||
/*< private >
|
||
* gdk_key_event_get_translated_key:
|
||
* @event: (type GdkKeyEvent): a key event
|
||
* @no_lock: whether the translated key should take the event
|
||
* state into account
|
||
*
|
||
* Extracts the translated key from a key event.
|
||
*
|
||
* Returns: (transfer none): the translated key
|
||
*/
|
||
GdkTranslatedKey *
|
||
gdk_key_event_get_translated_key (GdkEvent *event,
|
||
gboolean no_lock)
|
||
{
|
||
GdkKeyEvent *self = (GdkKeyEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), NULL);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_KEY_PRESS) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_KEY_RELEASE), NULL);
|
||
|
||
if (no_lock)
|
||
return &(self->translated[1]);
|
||
|
||
return &(self->translated[0]);
|
||
}
|
||
|
||
/**
|
||
* gdk_key_event_get_keyval:
|
||
* @event: (type GdkKeyEvent): a key event
|
||
*
|
||
* Extracts the keyval from a key event.
|
||
*
|
||
* Returns: the keyval of @event
|
||
*/
|
||
guint
|
||
gdk_key_event_get_keyval (GdkEvent *event)
|
||
{
|
||
GdkKeyEvent *self = (GdkKeyEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_KEY_PRESS) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_KEY_RELEASE), 0);
|
||
|
||
return self->translated[0].keyval;
|
||
}
|
||
|
||
/**
|
||
* gdk_key_event_get_keycode:
|
||
* @event: (type GdkKeyEvent): a key event
|
||
*
|
||
* Extracts the keycode from a key event.
|
||
*
|
||
* Returns: the keycode of @event
|
||
*/
|
||
guint
|
||
gdk_key_event_get_keycode (GdkEvent *event)
|
||
{
|
||
GdkKeyEvent *self = (GdkKeyEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_KEY_PRESS) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_KEY_RELEASE), 0);
|
||
|
||
return self->keycode;
|
||
}
|
||
|
||
/**
|
||
* gdk_key_event_get_level:
|
||
* @event: (type GdkKeyEvent): a key event
|
||
*
|
||
* Extracts the shift level from a key event.
|
||
*
|
||
* Returns: the shift level of @event
|
||
*/
|
||
guint
|
||
gdk_key_event_get_level (GdkEvent *event)
|
||
{
|
||
GdkKeyEvent *self = (GdkKeyEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_KEY_PRESS) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_KEY_RELEASE), 0);
|
||
|
||
return self->translated[0].level;
|
||
}
|
||
|
||
/**
|
||
* gdk_key_event_get_layout:
|
||
* @event: (type GdkKeyEvent): a key event
|
||
*
|
||
* Extracts the layout from a key event.
|
||
*
|
||
* Returns: the layout of @event
|
||
*/
|
||
guint
|
||
gdk_key_event_get_layout (GdkEvent *event)
|
||
{
|
||
GdkKeyEvent *self = (GdkKeyEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_KEY_PRESS) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_KEY_RELEASE), 0);
|
||
|
||
return self->translated[0].layout;
|
||
}
|
||
|
||
/**
|
||
* gdk_key_event_get_consumed_modifiers:
|
||
* @event: (type GdkKeyEvent): a key event
|
||
*
|
||
* Extracts the consumed modifiers from a key event.
|
||
*
|
||
* Returns: the consumed modifiers or @event
|
||
*/
|
||
GdkModifierType
|
||
gdk_key_event_get_consumed_modifiers (GdkEvent *event)
|
||
{
|
||
GdkKeyEvent *self = (GdkKeyEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_KEY_PRESS) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_KEY_RELEASE), 0);
|
||
|
||
return self->translated[0].consumed;
|
||
}
|
||
|
||
/**
|
||
* gdk_key_event_is_modifier:
|
||
* @event: (type GdkKeyEvent): a key event
|
||
*
|
||
* Extracts whether the key event is for a modifier key.
|
||
*
|
||
* Returns: %TRUE if the @event is for a modifier key
|
||
*/
|
||
gboolean
|
||
gdk_key_event_is_modifier (GdkEvent *event)
|
||
{
|
||
GdkKeyEvent *self = (GdkKeyEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_KEY_PRESS) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_KEY_RELEASE), FALSE);
|
||
|
||
return self->key_is_modifier;
|
||
}
|
||
|
||
/**
|
||
* gdk_key_event_matches:
|
||
* @event: (type GdkKeyEvent): a key #GdkEvent
|
||
* @keyval: the keyval to match
|
||
* @modifiers: the modifiers to match
|
||
*
|
||
* Matches a key event against a keyboard shortcut that is specified
|
||
* as a keyval and modifiers. Partial matches are possible where the
|
||
* combination matches if the currently active group is ignored.
|
||
*
|
||
* Note that we ignore Caps Lock for matching.
|
||
*
|
||
* Returns: a GdkKeyMatch value describing whether @event matches
|
||
*/
|
||
GdkKeyMatch
|
||
gdk_key_event_matches (GdkEvent *event,
|
||
guint keyval,
|
||
GdkModifierType modifiers)
|
||
{
|
||
GdkKeyEvent *self = (GdkKeyEvent *) event;
|
||
GdkKeymap *keymap;
|
||
guint keycode;
|
||
GdkModifierType state;
|
||
guint ev_keyval;
|
||
int layout;
|
||
int level;
|
||
GdkModifierType consumed_modifiers;
|
||
GdkModifierType shift_group_mask;
|
||
gboolean group_mod_is_accel_mod = FALSE;
|
||
const GdkModifierType mask = GDK_CONTROL_MASK |
|
||
GDK_SHIFT_MASK |
|
||
GDK_ALT_MASK |
|
||
GDK_SUPER_MASK |
|
||
GDK_HYPER_MASK |
|
||
GDK_META_MASK;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), GDK_KEY_MATCH_NONE);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_KEY_PRESS) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_KEY_RELEASE), GDK_KEY_MATCH_NONE);
|
||
|
||
keycode = self->keycode;
|
||
state = self->state & ~GDK_LOCK_MASK;
|
||
ev_keyval = self->translated[1].keyval;
|
||
layout = self->translated[1].layout;
|
||
level = self->translated[1].level;
|
||
consumed_modifiers = self->translated[1].consumed;
|
||
|
||
/* if the group-toggling modifier is part of the default accel mod
|
||
* mask, and it is active, disable it for matching
|
||
*
|
||
* FIXME: get shift group mask from backends
|
||
*/
|
||
shift_group_mask = 0;
|
||
|
||
if (mask & shift_group_mask)
|
||
group_mod_is_accel_mod = TRUE;
|
||
|
||
if ((modifiers & ~consumed_modifiers & mask) == (state & ~consumed_modifiers & mask))
|
||
{
|
||
/* modifier match */
|
||
GdkKeymapKey *keys;
|
||
guint n_keys;
|
||
int i;
|
||
guint key;
|
||
|
||
/* Shift gets consumed and applied for the event,
|
||
* so apply it to our keyval to match
|
||
*/
|
||
key = keyval;
|
||
if (modifiers & GDK_SHIFT_MASK)
|
||
{
|
||
if (key == GDK_KEY_Tab)
|
||
key = GDK_KEY_ISO_Left_Tab;
|
||
else
|
||
key = gdk_keyval_to_upper (key);
|
||
}
|
||
|
||
if (ev_keyval == key && /* exact match */
|
||
(!group_mod_is_accel_mod ||
|
||
(state & shift_group_mask) == (modifiers & shift_group_mask)))
|
||
{
|
||
return GDK_KEY_MATCH_EXACT;
|
||
}
|
||
|
||
keymap = gdk_display_get_keymap (gdk_event_get_display (event));
|
||
gdk_keymap_get_cached_entries_for_keyval (keymap, keyval, &keys, &n_keys);
|
||
|
||
for (i = 0; i < n_keys; i++)
|
||
{
|
||
if (keys[i].keycode == keycode &&
|
||
keys[i].level == level &&
|
||
/* Only match for group if it's an accel mod */
|
||
(!group_mod_is_accel_mod || keys[i].group == layout))
|
||
{
|
||
return GDK_KEY_MATCH_PARTIAL;
|
||
}
|
||
}
|
||
}
|
||
|
||
return GDK_KEY_MATCH_NONE;
|
||
}
|
||
|
||
/**
|
||
* gdk_key_event_get_match:
|
||
* @event: (type GdkKeyEvent): a key #GdkEvent
|
||
* @keyval: (out): return location for a keyval
|
||
* @modifiers: (out): return location for modifiers
|
||
*
|
||
* Gets a keyval and modifier combination that will cause
|
||
* gdk_key_event_matches() to successfully match the given event.
|
||
*
|
||
* Returns: %TRUE on success
|
||
*/
|
||
gboolean
|
||
gdk_key_event_get_match (GdkEvent *event,
|
||
guint *keyval,
|
||
GdkModifierType *modifiers)
|
||
{
|
||
GdkKeyEvent *self = (GdkKeyEvent *) event;
|
||
guint key;
|
||
guint accel_key;
|
||
GdkModifierType accel_mods;
|
||
GdkModifierType consumed_modifiers;
|
||
const GdkModifierType mask = GDK_CONTROL_MASK |
|
||
GDK_SHIFT_MASK |
|
||
GDK_ALT_MASK |
|
||
GDK_SUPER_MASK |
|
||
GDK_HYPER_MASK |
|
||
GDK_META_MASK;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), FALSE);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_KEY_PRESS) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_KEY_RELEASE), FALSE);
|
||
|
||
accel_key = self->translated[1].keyval;
|
||
accel_mods = self->state;
|
||
consumed_modifiers = self->translated[1].consumed;
|
||
|
||
if (accel_key == GDK_KEY_Sys_Req &&
|
||
(accel_mods & GDK_ALT_MASK) != 0)
|
||
{
|
||
/* HACK: we don't want to use SysRq as a keybinding (but we do
|
||
* want Alt+Print), so we avoid translation from Alt+Print to SysRq
|
||
*/
|
||
*keyval = GDK_KEY_Print;
|
||
*modifiers = accel_mods & mask;
|
||
return TRUE;
|
||
}
|
||
|
||
key = gdk_keyval_to_lower (accel_key);
|
||
|
||
if (key == GDK_KEY_ISO_Left_Tab)
|
||
key = GDK_KEY_Tab;
|
||
|
||
accel_mods &= mask & ~consumed_modifiers;
|
||
|
||
if (accel_key != key)
|
||
accel_mods |= GDK_SHIFT_MASK;
|
||
|
||
*keyval = key;
|
||
*modifiers = accel_mods;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkConfigureEvent */
|
||
|
||
static gboolean
|
||
gdk_configure_event_get_position (GdkEvent *event,
|
||
double *x,
|
||
double *y)
|
||
{
|
||
GdkConfigureEvent *self = (GdkConfigureEvent *) event;
|
||
|
||
*x = self->x;
|
||
*y = self->y;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static const GdkEventTypeInfo gdk_configure_event_info = {
|
||
sizeof (GdkConfigureEvent),
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
gdk_configure_event_get_position,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkConfigureEvent, gdk_configure_event,
|
||
&gdk_configure_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_CONFIGURE))
|
||
|
||
GdkEvent *
|
||
gdk_configure_event_new (GdkSurface *surface,
|
||
int width,
|
||
int height)
|
||
{
|
||
GdkConfigureEvent *self;
|
||
|
||
g_return_val_if_fail (width >= 0 && height >= 0, NULL);
|
||
|
||
self = gdk_event_alloc (GDK_CONFIGURE, surface, NULL, NULL, GDK_CURRENT_TIME);
|
||
self->width = width;
|
||
self->height = height;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
/**
|
||
* gdk_configure_event_get_size:
|
||
* @event: (type GdkConfigureEvent): a configure event
|
||
* @width: (out): return location for surface width
|
||
* @height: (out): return location for surface height
|
||
*
|
||
* Extracts the surface size from a configure event.
|
||
*/
|
||
void
|
||
gdk_configure_event_get_size (GdkEvent *event,
|
||
int *width,
|
||
int *height)
|
||
{
|
||
GdkConfigureEvent *self = (GdkConfigureEvent *) event;
|
||
|
||
g_return_if_fail (GDK_IS_EVENT (event));
|
||
g_return_if_fail (GDK_IS_EVENT_TYPE (event, GDK_CONFIGURE));
|
||
|
||
*width = self->width;
|
||
*height = self->height;
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkTouchEvent */
|
||
|
||
static void
|
||
gdk_touch_event_finalize (GdkEvent *event)
|
||
{
|
||
GdkTouchEvent *self = (GdkTouchEvent *) event;
|
||
|
||
g_clear_pointer (&self->axes, g_free);
|
||
|
||
GDK_EVENT_SUPER (event)->finalize (event);
|
||
}
|
||
|
||
static GdkModifierType
|
||
gdk_touch_event_get_state (GdkEvent *event)
|
||
{
|
||
GdkTouchEvent *self = (GdkTouchEvent *) event;
|
||
|
||
return self->state;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_touch_event_get_position (GdkEvent *event,
|
||
double *x,
|
||
double *y)
|
||
{
|
||
GdkTouchEvent *self = (GdkTouchEvent *) event;
|
||
|
||
*x = self->x;
|
||
*y = self->y;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static GdkEventSequence *
|
||
gdk_touch_event_get_sequence (GdkEvent *event)
|
||
{
|
||
GdkTouchEvent *self = (GdkTouchEvent *) event;
|
||
|
||
return self->sequence;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_touch_event_get_axes (GdkEvent *event,
|
||
double **axes,
|
||
guint *n_axes)
|
||
{
|
||
GdkTouchEvent *self = (GdkTouchEvent *) event;
|
||
GdkDevice *source_device = gdk_event_get_source_device (event);
|
||
|
||
if (source_device == NULL)
|
||
return FALSE;
|
||
|
||
*axes = self->axes;
|
||
*n_axes = gdk_device_get_n_axes (source_device);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static const GdkEventTypeInfo gdk_touch_event_info = {
|
||
sizeof (GdkTouchEvent),
|
||
NULL,
|
||
gdk_touch_event_finalize,
|
||
gdk_touch_event_get_state,
|
||
gdk_touch_event_get_position,
|
||
gdk_touch_event_get_sequence,
|
||
NULL,
|
||
gdk_touch_event_get_axes,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkTouchEvent, gdk_touch_event,
|
||
&gdk_touch_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_TOUCH_BEGIN)
|
||
GDK_EVENT_TYPE_SLOT (GDK_TOUCH_END)
|
||
GDK_EVENT_TYPE_SLOT (GDK_TOUCH_UPDATE)
|
||
GDK_EVENT_TYPE_SLOT (GDK_TOUCH_CANCEL))
|
||
|
||
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)
|
||
{
|
||
GdkTouchEvent *self;
|
||
|
||
g_return_val_if_fail (type == GDK_TOUCH_BEGIN ||
|
||
type == GDK_TOUCH_END ||
|
||
type == GDK_TOUCH_UPDATE ||
|
||
type == GDK_TOUCH_CANCEL, NULL);
|
||
|
||
self = gdk_event_alloc (type, surface, device, source_device, time);
|
||
self->sequence = sequence;
|
||
self->state = state;
|
||
self->x = x;
|
||
self->y = y;
|
||
self->axes = axes;
|
||
self->touch_emulating = emulating;
|
||
self->pointer_emulated = emulating;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
/**
|
||
* gdk_touch_event_get_emulating_pointer:
|
||
* @event: (type GdkTouchEvent): a touch event
|
||
*
|
||
* Extracts whether a touch event is emulating a pointer event.
|
||
*
|
||
* Returns: %TRUE if @event is emulating
|
||
**/
|
||
gboolean
|
||
gdk_touch_event_get_emulating_pointer (GdkEvent *event)
|
||
{
|
||
GdkTouchEvent *self = (GdkTouchEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), FALSE);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_TOUCH_BEGIN) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_TOUCH_UPDATE) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_TOUCH_END) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_TOUCH_CANCEL), FALSE);
|
||
|
||
return self->touch_emulating;
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkCrossingEvent */
|
||
|
||
static void
|
||
gdk_crossing_event_finalize (GdkEvent *event)
|
||
{
|
||
GdkCrossingEvent *self = (GdkCrossingEvent *) event;
|
||
|
||
g_clear_object (&self->child_surface);
|
||
|
||
GDK_EVENT_SUPER (self)->finalize (event);
|
||
}
|
||
|
||
static GdkModifierType
|
||
gdk_crossing_event_get_state (GdkEvent *event)
|
||
{
|
||
GdkCrossingEvent *self = (GdkCrossingEvent *) event;
|
||
|
||
return self->state;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_crossing_event_get_position (GdkEvent *event,
|
||
double *x,
|
||
double *y)
|
||
{
|
||
GdkCrossingEvent *self = (GdkCrossingEvent *) event;
|
||
|
||
*x = self->x;
|
||
*y = self->y;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static const GdkEventTypeInfo gdk_crossing_event_info = {
|
||
sizeof (GdkCrossingEvent),
|
||
NULL,
|
||
gdk_crossing_event_finalize,
|
||
gdk_crossing_event_get_state,
|
||
gdk_crossing_event_get_position,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkCrossingEvent, gdk_crossing_event,
|
||
&gdk_crossing_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_ENTER_NOTIFY)
|
||
GDK_EVENT_TYPE_SLOT (GDK_LEAVE_NOTIFY))
|
||
|
||
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 detail)
|
||
{
|
||
GdkCrossingEvent *self;
|
||
|
||
g_return_val_if_fail (type == GDK_ENTER_NOTIFY ||
|
||
type == GDK_LEAVE_NOTIFY, NULL);
|
||
|
||
self = gdk_event_alloc (type, surface, device, source_device, time);
|
||
|
||
self->state = state;
|
||
self->x = x;
|
||
self->y = y;
|
||
self->mode = mode;
|
||
self->detail = detail;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
/**
|
||
* gdk_crossing_event_get_mode:
|
||
* @event: (type GdkCrossingEvent): a crossing event
|
||
*
|
||
* Extracts the crossing mode from a crossing event.
|
||
*
|
||
* Returns: the mode of @event
|
||
*/
|
||
GdkCrossingMode
|
||
gdk_crossing_event_get_mode (GdkEvent *event)
|
||
{
|
||
GdkCrossingEvent *self = (GdkCrossingEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_ENTER_NOTIFY) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_LEAVE_NOTIFY), 0);
|
||
|
||
return self->mode;
|
||
}
|
||
|
||
/**
|
||
* gdk_crossing_event_get_focus:
|
||
* @event: (type GdkCrossingEvent): a crossing event
|
||
*
|
||
* Checks if the @event surface is the focus surface.
|
||
*
|
||
* Returns: %TRUE if the surface is the focus surface
|
||
*/
|
||
gboolean
|
||
gdk_crossing_event_get_focus (GdkEvent *event)
|
||
{
|
||
GdkCrossingEvent *self = (GdkCrossingEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), FALSE);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_ENTER_NOTIFY) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_LEAVE_NOTIFY), FALSE);
|
||
|
||
return self->focus;
|
||
}
|
||
|
||
/**
|
||
* gdk_crossing_event_get_detail:
|
||
* @event: (type GdkCrossingEvent): a crossing event
|
||
*
|
||
* Extracts the notify detail from a crossing event.
|
||
*
|
||
* Returns: the notify detail of @event
|
||
*/
|
||
GdkNotifyType
|
||
gdk_crossing_event_get_detail (GdkEvent *event)
|
||
{
|
||
GdkCrossingEvent *self = (GdkCrossingEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_ENTER_NOTIFY) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_LEAVE_NOTIFY), 0);
|
||
|
||
return self->detail;
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkDeleteEvent */
|
||
|
||
static const GdkEventTypeInfo gdk_delete_event_info = {
|
||
sizeof (GdkDeleteEvent),
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkDeleteEvent, gdk_delete_event,
|
||
&gdk_delete_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_DELETE))
|
||
|
||
GdkEvent *
|
||
gdk_delete_event_new (GdkSurface *surface)
|
||
{
|
||
return gdk_event_alloc (GDK_DELETE, surface, NULL, NULL, GDK_CURRENT_TIME);
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkFocusEvent */
|
||
|
||
static const GdkEventTypeInfo gdk_focus_event_info = {
|
||
sizeof (GdkFocusEvent),
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkFocusEvent, gdk_focus_event,
|
||
&gdk_focus_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_FOCUS_CHANGE))
|
||
|
||
GdkEvent *
|
||
gdk_focus_event_new (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
gboolean focus_in)
|
||
{
|
||
GdkFocusEvent *self = gdk_event_alloc (GDK_FOCUS_CHANGE, surface, device, source_device, GDK_CURRENT_TIME);
|
||
|
||
self->focus_in = focus_in;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
/**
|
||
* gdk_focus_event_get_in:
|
||
* @event: (type GdkFocusEvent): a focus change event
|
||
*
|
||
* Extracts whether this event is about focus entering or
|
||
* leaving the surface.
|
||
*
|
||
* Returns: %TRUE of the focus is entering
|
||
*/
|
||
gboolean
|
||
gdk_focus_event_get_in (GdkEvent *event)
|
||
{
|
||
GdkFocusEvent *self = (GdkFocusEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), FALSE);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_FOCUS_CHANGE), FALSE);
|
||
|
||
return self->focus_in;
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkScrollEvent */
|
||
|
||
static void
|
||
gdk_scroll_event_finalize (GdkEvent *event)
|
||
{
|
||
GdkScrollEvent *self = (GdkScrollEvent *) event;
|
||
|
||
g_clear_object (&self->tool);
|
||
if (self->history)
|
||
g_array_free (self->history, TRUE);
|
||
|
||
GDK_EVENT_SUPER (self)->finalize (event);
|
||
}
|
||
|
||
static GdkModifierType
|
||
gdk_scroll_event_get_state (GdkEvent *event)
|
||
{
|
||
GdkScrollEvent *self = (GdkScrollEvent *) event;
|
||
|
||
return self->state;
|
||
}
|
||
|
||
static GdkDeviceTool *
|
||
gdk_scroll_event_get_tool (GdkEvent *event)
|
||
{
|
||
GdkScrollEvent *self = (GdkScrollEvent *) event;
|
||
|
||
return self->tool;
|
||
}
|
||
|
||
static const GdkEventTypeInfo gdk_scroll_event_info = {
|
||
sizeof (GdkScrollEvent),
|
||
NULL,
|
||
gdk_scroll_event_finalize,
|
||
gdk_scroll_event_get_state,
|
||
NULL,
|
||
NULL,
|
||
gdk_scroll_event_get_tool,
|
||
NULL,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkScrollEvent, gdk_scroll_event,
|
||
&gdk_scroll_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_SCROLL))
|
||
|
||
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)
|
||
{
|
||
GdkScrollEvent *self = gdk_event_alloc (GDK_SCROLL, surface, device, source_device, time);
|
||
|
||
self->tool = tool != NULL ? g_object_ref (tool) : NULL;
|
||
self->state = state;
|
||
self->direction = GDK_SCROLL_SMOOTH;
|
||
self->delta_x = delta_x;
|
||
self->delta_y = delta_y;
|
||
self->is_stop = is_stop;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
GdkEvent *
|
||
gdk_scroll_event_new_discrete (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
GdkDeviceTool *tool,
|
||
guint32 time,
|
||
GdkModifierType state,
|
||
GdkScrollDirection direction,
|
||
gboolean emulated)
|
||
{
|
||
GdkScrollEvent *self = gdk_event_alloc (GDK_SCROLL, surface, device, source_device, time);
|
||
|
||
self->tool = tool != NULL ? g_object_ref (tool) : NULL;
|
||
self->state = state;
|
||
self->direction = direction;
|
||
self->pointer_emulated = emulated;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
/**
|
||
* gdk_scroll_event_get_direction:
|
||
* @event: (type GdkScrollEvent): a scroll event
|
||
*
|
||
* Extracts the direction of a scroll event.
|
||
*
|
||
* Returns: the scroll direction of @event
|
||
*/
|
||
GdkScrollDirection
|
||
gdk_scroll_event_get_direction (GdkEvent *event)
|
||
{
|
||
GdkScrollEvent *self = (GdkScrollEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_SCROLL), 0);
|
||
|
||
return self->direction;
|
||
}
|
||
|
||
/**
|
||
* gdk_scroll_event_get_deltas:
|
||
* @event: (type GdkScrollEvent): a scroll event
|
||
* @delta_x: (out): return location for x scroll delta
|
||
* @delta_y: (out): return location for y scroll delta
|
||
*
|
||
* Extracts the scroll deltas of a scroll event.
|
||
*
|
||
* The deltas will be zero unless the scroll direction
|
||
* is %GDK_SCROLL_SMOOTH.
|
||
*/
|
||
void
|
||
gdk_scroll_event_get_deltas (GdkEvent *event,
|
||
double *delta_x,
|
||
double *delta_y)
|
||
{
|
||
GdkScrollEvent *self = (GdkScrollEvent *) event;
|
||
|
||
g_return_if_fail (GDK_IS_EVENT (event));
|
||
g_return_if_fail (GDK_IS_EVENT_TYPE (event, GDK_SCROLL));
|
||
|
||
*delta_x = self->delta_x;
|
||
*delta_y = self->delta_y;
|
||
}
|
||
|
||
/**
|
||
* gdk_scroll_event_is_stop:
|
||
* @event: (type GdkScrollEvent): a scroll event
|
||
*
|
||
* Check whether a scroll event is a stop scroll event. Scroll sequences
|
||
* with smooth scroll information may provide a stop scroll event once the
|
||
* interaction with the device finishes, e.g. by lifting a finger. This
|
||
* stop scroll event is the signal that a widget may trigger kinetic
|
||
* scrolling based on the current velocity.
|
||
*
|
||
* Stop scroll events always have a delta of 0/0.
|
||
*
|
||
* Returns: %TRUE if the event is a scroll stop event
|
||
*/
|
||
gboolean
|
||
gdk_scroll_event_is_stop (GdkEvent *event)
|
||
{
|
||
GdkScrollEvent *self = (GdkScrollEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), FALSE);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_SCROLL), FALSE);
|
||
|
||
return self->is_stop;
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkTouchpadEvent */
|
||
|
||
static GdkModifierType
|
||
gdk_touchpad_event_get_state (GdkEvent *event)
|
||
{
|
||
GdkTouchpadEvent *self = (GdkTouchpadEvent *) event;
|
||
|
||
return self->state;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_touchpad_event_get_position (GdkEvent *event,
|
||
double *x,
|
||
double *y)
|
||
{
|
||
GdkTouchpadEvent *self = (GdkTouchpadEvent *) event;
|
||
|
||
*x = self->x;
|
||
*y = self->y;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static const GdkEventTypeInfo gdk_touchpad_event_info = {
|
||
sizeof (GdkTouchpadEvent),
|
||
NULL,
|
||
NULL,
|
||
gdk_touchpad_event_get_state,
|
||
gdk_touchpad_event_get_position,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkTouchpadEvent, gdk_touchpad_event,
|
||
&gdk_touchpad_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_TOUCHPAD_SWIPE)
|
||
GDK_EVENT_TYPE_SLOT (GDK_TOUCHPAD_PINCH))
|
||
|
||
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)
|
||
{
|
||
GdkTouchpadEvent *self = gdk_event_alloc (GDK_TOUCHPAD_SWIPE, surface, device, source_device, time);
|
||
|
||
self->state = state;
|
||
self->phase = phase;
|
||
self->x = x;
|
||
self->y = y;
|
||
self->dx = dx;
|
||
self->dy = dy;
|
||
self->n_fingers = n_fingers;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
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)
|
||
{
|
||
GdkTouchpadEvent *self = gdk_event_alloc (GDK_TOUCHPAD_PINCH, surface, device, source_device, time);
|
||
|
||
self->state = state;
|
||
self->phase = phase;
|
||
self->x = x;
|
||
self->y = y;
|
||
self->dx = dx;
|
||
self->dy = dy;
|
||
self->n_fingers = n_fingers;
|
||
self->scale = scale;
|
||
self->angle_delta = angle_delta;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
/**
|
||
* gdk_touchpad_event_get_gesture_phase:
|
||
* @event: (type GdkTouchpadEvent): a touchpad #GdkEvent
|
||
*
|
||
* Extracts the touchpad gesture phase from a touchpad event.
|
||
*
|
||
* Returns: the gesture phase of @event
|
||
**/
|
||
GdkTouchpadGesturePhase
|
||
gdk_touchpad_event_get_gesture_phase (GdkEvent *event)
|
||
{
|
||
GdkTouchpadEvent *self = (GdkTouchpadEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_TOUCHPAD_PINCH) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_TOUCHPAD_SWIPE), 0);
|
||
|
||
return self->phase;
|
||
}
|
||
|
||
/**
|
||
* gdk_touchpad_event_get_n_fingers:
|
||
* @event: (type GdkTouchpadEvent): a touchpad event
|
||
*
|
||
* Extracts the number of fingers from a touchpad event.
|
||
*
|
||
* Returns: the number of fingers for @event
|
||
**/
|
||
guint
|
||
gdk_touchpad_event_get_n_fingers (GdkEvent *event)
|
||
{
|
||
GdkTouchpadEvent *self = (GdkTouchpadEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_TOUCHPAD_PINCH) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_TOUCHPAD_SWIPE), 0);
|
||
|
||
return self->n_fingers;
|
||
}
|
||
|
||
/**
|
||
* gdk_touchpad_event_get_deltas:
|
||
* @event: (type GdkTouchpadEvent): a touchpad event
|
||
* @dx: (out): return location for x
|
||
* @dy: (out): return location for y
|
||
*
|
||
* Extracts delta information from a touchpad event.
|
||
**/
|
||
void
|
||
gdk_touchpad_event_get_deltas (GdkEvent *event,
|
||
double *dx,
|
||
double *dy)
|
||
{
|
||
GdkTouchpadEvent *self = (GdkTouchpadEvent *) event;
|
||
|
||
g_return_if_fail (GDK_IS_EVENT (event));
|
||
g_return_if_fail (GDK_IS_EVENT_TYPE (event, GDK_TOUCHPAD_PINCH) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_TOUCHPAD_SWIPE));
|
||
|
||
*dx = self->dx;
|
||
*dy = self->dy;
|
||
}
|
||
|
||
/**
|
||
* gdk_touchpad_event_get_pinch_angle_delta:
|
||
* @event: (type GdkTouchpadEvent): a touchpad pinch event
|
||
*
|
||
* Extracts the angle delta from a touchpad pinch event.
|
||
*
|
||
* Returns: the angle delta of @event
|
||
*/
|
||
double
|
||
gdk_touchpad_event_get_pinch_angle_delta (GdkEvent *event)
|
||
{
|
||
GdkTouchpadEvent *self = (GdkTouchpadEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0.0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_TOUCHPAD_PINCH), 0.0);
|
||
|
||
return self->angle_delta;
|
||
}
|
||
|
||
/**
|
||
* gdk_touchpad_event_get_pinch_scale:
|
||
* @event: (type GdkTouchpadEvent): a touchpad pinch event
|
||
*
|
||
* Extracts the scale from a touchpad pinch event.
|
||
*
|
||
* Returns: the scale of @event
|
||
**/
|
||
double
|
||
gdk_touchpad_event_get_pinch_scale (GdkEvent *event)
|
||
{
|
||
GdkTouchpadEvent *self = (GdkTouchpadEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0.0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_TOUCHPAD_PINCH), 0.0);
|
||
|
||
return self->scale;
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkPadEvent */
|
||
|
||
static const GdkEventTypeInfo gdk_pad_event_info = {
|
||
sizeof (GdkPadEvent),
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkPadEvent, gdk_pad_event,
|
||
&gdk_pad_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_PAD_BUTTON_PRESS)
|
||
GDK_EVENT_TYPE_SLOT (GDK_PAD_BUTTON_RELEASE)
|
||
GDK_EVENT_TYPE_SLOT (GDK_PAD_RING)
|
||
GDK_EVENT_TYPE_SLOT (GDK_PAD_STRIP)
|
||
GDK_EVENT_TYPE_SLOT (GDK_PAD_GROUP_MODE))
|
||
|
||
GdkEvent *
|
||
gdk_pad_event_new_ring (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
guint group,
|
||
guint index,
|
||
guint mode,
|
||
double value)
|
||
{
|
||
GdkPadEvent *self = gdk_event_alloc (GDK_PAD_RING, surface, device, source_device, time);
|
||
|
||
self->group = group;
|
||
self->index = index;
|
||
self->mode = mode;
|
||
self->value = value;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
GdkEvent *
|
||
gdk_pad_event_new_strip (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
guint group,
|
||
guint index,
|
||
guint mode,
|
||
double value)
|
||
{
|
||
GdkPadEvent *self = gdk_event_alloc (GDK_PAD_STRIP, surface, device, source_device, time);
|
||
|
||
self->group = group;
|
||
self->index = index;
|
||
self->mode = mode;
|
||
self->value = value;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
GdkEvent *
|
||
gdk_pad_event_new_button (GdkEventType type,
|
||
GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
guint group,
|
||
guint button,
|
||
guint mode)
|
||
{
|
||
GdkPadEvent *self;
|
||
|
||
g_return_val_if_fail (type == GDK_PAD_BUTTON_PRESS ||
|
||
type == GDK_PAD_BUTTON_RELEASE, NULL);
|
||
|
||
self = gdk_event_alloc (type, surface, device, source_device, time);
|
||
|
||
self->group = group;
|
||
self->button = button;
|
||
self->mode = mode;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
GdkEvent *
|
||
gdk_pad_event_new_group_mode (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
guint32 time,
|
||
guint group,
|
||
guint mode)
|
||
{
|
||
GdkPadEvent *self = gdk_event_alloc (GDK_PAD_GROUP_MODE, surface, device, source_device, time);
|
||
|
||
self->group = group;
|
||
self->mode = mode;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
/**
|
||
* gdk_pad_event_get_button:
|
||
* @event: (type GdkPadEvent): a pad button event
|
||
*
|
||
* Extracts information about the pressed button from
|
||
* a pad event.
|
||
*
|
||
* Returns: the button of @event
|
||
**/
|
||
guint
|
||
gdk_pad_event_get_button (GdkEvent *event)
|
||
{
|
||
GdkPadEvent *self = (GdkPadEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), 0);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_PAD_BUTTON_PRESS) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_PAD_BUTTON_RELEASE), 0);
|
||
|
||
return self->button;
|
||
}
|
||
|
||
/**
|
||
* gdk_pad_event_get_axis_value:
|
||
* @event: (type GdkPadEvent): a pad strip or ring event
|
||
* @index: (out): Return location for the axis index
|
||
* @value: (out): Return location for the axis value
|
||
*
|
||
* Extracts the information from a pad strip or ring event.
|
||
**/
|
||
void
|
||
gdk_pad_event_get_axis_value (GdkEvent *event,
|
||
guint *index,
|
||
double *value)
|
||
{
|
||
GdkPadEvent *self = (GdkPadEvent *) event;
|
||
|
||
g_return_if_fail (GDK_IS_EVENT (event));
|
||
g_return_if_fail (GDK_IS_EVENT_TYPE (event, GDK_PAD_RING) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_PAD_STRIP));
|
||
|
||
*index = self->index;
|
||
*value = self->value;
|
||
}
|
||
|
||
/**
|
||
* gdk_pad_event_get_group_mode:
|
||
* @event: (type GdkPadEvent): a pad event
|
||
* @group: (out): return location for the group
|
||
* @mode: (out): return location for the mode
|
||
*
|
||
* Extracts group and mode information from a pad event.
|
||
**/
|
||
void
|
||
gdk_pad_event_get_group_mode (GdkEvent *event,
|
||
guint *group,
|
||
guint *mode)
|
||
{
|
||
GdkPadEvent *self = (GdkPadEvent *) event;
|
||
|
||
g_return_if_fail (GDK_IS_EVENT (event));
|
||
g_return_if_fail (GDK_IS_EVENT_TYPE (event, GDK_PAD_GROUP_MODE) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_PAD_BUTTON_PRESS) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_PAD_BUTTON_RELEASE) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_PAD_RING) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_PAD_STRIP));
|
||
|
||
*group = self->group;
|
||
*mode = self->mode;
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkMotionEvent */
|
||
|
||
static void
|
||
gdk_motion_event_finalize (GdkEvent *event)
|
||
{
|
||
GdkMotionEvent *self = (GdkMotionEvent *) event;
|
||
|
||
g_clear_object (&self->tool);
|
||
g_clear_pointer (&self->axes, g_free);
|
||
if (self->history)
|
||
g_array_free (self->history, TRUE);
|
||
|
||
GDK_EVENT_SUPER (event)->finalize (event);
|
||
}
|
||
|
||
static GdkModifierType
|
||
gdk_motion_event_get_state (GdkEvent *event)
|
||
{
|
||
GdkMotionEvent *self = (GdkMotionEvent *) event;
|
||
|
||
return self->state;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_motion_event_get_position (GdkEvent *event,
|
||
double *x,
|
||
double *y)
|
||
{
|
||
GdkMotionEvent *self = (GdkMotionEvent *) event;
|
||
|
||
*x = self->x;
|
||
*y = self->y;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static GdkDeviceTool *
|
||
gdk_motion_event_get_tool (GdkEvent *event)
|
||
{
|
||
GdkMotionEvent *self = (GdkMotionEvent *) event;
|
||
|
||
return self->tool;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_motion_event_get_axes (GdkEvent *event,
|
||
double **axes,
|
||
guint *n_axes)
|
||
{
|
||
GdkMotionEvent *self = (GdkMotionEvent *) event;
|
||
GdkDevice *source_device = gdk_event_get_source_device (event);
|
||
|
||
if (source_device == NULL)
|
||
return FALSE;
|
||
|
||
*axes = self->axes;
|
||
*n_axes = gdk_device_get_n_axes (source_device);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static const GdkEventTypeInfo gdk_motion_event_info = {
|
||
sizeof (GdkMotionEvent),
|
||
NULL,
|
||
gdk_motion_event_finalize,
|
||
gdk_motion_event_get_state,
|
||
gdk_motion_event_get_position,
|
||
NULL,
|
||
gdk_motion_event_get_tool,
|
||
gdk_motion_event_get_axes,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkMotionEvent, gdk_motion_event,
|
||
&gdk_motion_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_MOTION_NOTIFY))
|
||
|
||
GdkEvent *
|
||
gdk_motion_event_new (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
GdkDeviceTool *tool,
|
||
guint32 time,
|
||
GdkModifierType state,
|
||
double x,
|
||
double y,
|
||
double *axes)
|
||
{
|
||
GdkMotionEvent *self = gdk_event_alloc (GDK_MOTION_NOTIFY, surface, device, source_device, time);
|
||
|
||
self->tool = tool ? g_object_ref (tool) : NULL;
|
||
self->state = state;
|
||
self->x = x;
|
||
self->y = y;
|
||
self->axes = axes;
|
||
self->state = state;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
/**
|
||
* gdk_event_get_history:
|
||
* @event: a motion or scroll #GdkEvent
|
||
* @out_n_coords: (out): Return location for the length of the returned array
|
||
*
|
||
* Retrieves the history of the @event, as a list of time and coordinates.
|
||
*
|
||
* The history includes events that are not delivered to the application
|
||
* because they occurred in the same frame as @event.
|
||
*
|
||
* Note that only motion and scroll events record history, and motion
|
||
* events only if one of the mouse buttons is down.
|
||
*
|
||
* Returns: (transfer container) (array length=out_n_coords) (nullable): an
|
||
* array of time and coordinates
|
||
*/
|
||
GdkTimeCoord *
|
||
gdk_event_get_history (GdkEvent *event,
|
||
guint *out_n_coords)
|
||
{
|
||
GArray *history;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), NULL);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_MOTION_NOTIFY) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_SCROLL), NULL);
|
||
g_return_val_if_fail (out_n_coords != NULL, NULL);
|
||
|
||
if (GDK_IS_EVENT_TYPE (event, GDK_MOTION_NOTIFY))
|
||
{
|
||
GdkMotionEvent *self = (GdkMotionEvent *) event;
|
||
history = self->history;
|
||
}
|
||
else
|
||
{
|
||
GdkScrollEvent *self = (GdkScrollEvent *) event;
|
||
history = self->history;
|
||
}
|
||
|
||
if (history && history->len > 0)
|
||
{
|
||
GdkTimeCoord *result;
|
||
|
||
*out_n_coords = history->len;
|
||
|
||
result = g_malloc (sizeof (GdkTimeCoord) * history->len);
|
||
memcpy (result, history->data, sizeof (GdkTimeCoord) * history->len);
|
||
|
||
return result;
|
||
}
|
||
|
||
*out_n_coords = 0;
|
||
return NULL;
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkProximityEvent */
|
||
|
||
static void
|
||
gdk_proximity_event_finalize (GdkEvent *event)
|
||
{
|
||
GdkProximityEvent *self = (GdkProximityEvent *) event;
|
||
|
||
g_clear_object (&self->tool);
|
||
|
||
GDK_EVENT_SUPER (event)->finalize (event);
|
||
}
|
||
|
||
static GdkDeviceTool *
|
||
gdk_proximity_event_get_tool (GdkEvent *event)
|
||
{
|
||
GdkProximityEvent *self = (GdkProximityEvent *) event;
|
||
|
||
return self->tool;
|
||
}
|
||
|
||
static const GdkEventTypeInfo gdk_proximity_event_info = {
|
||
sizeof (GdkProximityEvent),
|
||
NULL,
|
||
gdk_proximity_event_finalize,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
gdk_proximity_event_get_tool,
|
||
NULL,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkProximityEvent, gdk_proximity_event,
|
||
&gdk_proximity_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_PROXIMITY_IN)
|
||
GDK_EVENT_TYPE_SLOT (GDK_PROXIMITY_OUT))
|
||
|
||
GdkEvent *
|
||
gdk_proximity_event_new (GdkEventType type,
|
||
GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
GdkDeviceTool *tool,
|
||
guint32 time)
|
||
{
|
||
GdkProximityEvent *self;
|
||
|
||
g_return_val_if_fail (type == GDK_PROXIMITY_IN ||
|
||
type == GDK_PROXIMITY_OUT, NULL);
|
||
|
||
self = gdk_event_alloc (type, surface, device, source_device, time);
|
||
|
||
self->tool = tool ? g_object_ref (tool) : NULL;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkDNDEvent */
|
||
|
||
static void
|
||
gdk_dnd_event_finalize (GdkEvent *event)
|
||
{
|
||
GdkDNDEvent *self = (GdkDNDEvent *) event;
|
||
|
||
g_clear_object (&self->drop);
|
||
|
||
GDK_EVENT_SUPER (event)->finalize (event);
|
||
}
|
||
|
||
static gboolean
|
||
gdk_dnd_event_get_position (GdkEvent *event,
|
||
double *x,
|
||
double *y)
|
||
{
|
||
GdkDNDEvent *self = (GdkDNDEvent *) event;
|
||
|
||
*x = self->x;
|
||
*y = self->y;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static GdkEventSequence *
|
||
gdk_dnd_event_get_sequence (GdkEvent *event)
|
||
{
|
||
GdkDNDEvent *self = (GdkDNDEvent *) event;
|
||
|
||
return (GdkEventSequence *) self->drop;
|
||
}
|
||
|
||
static const GdkEventTypeInfo gdk_dnd_event_info = {
|
||
sizeof (GdkDNDEvent),
|
||
NULL,
|
||
gdk_dnd_event_finalize,
|
||
NULL,
|
||
gdk_dnd_event_get_position,
|
||
gdk_dnd_event_get_sequence,
|
||
NULL,
|
||
NULL,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkDNDEvent, gdk_dnd_event,
|
||
&gdk_dnd_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_DRAG_ENTER)
|
||
GDK_EVENT_TYPE_SLOT (GDK_DRAG_MOTION)
|
||
GDK_EVENT_TYPE_SLOT (GDK_DRAG_LEAVE)
|
||
GDK_EVENT_TYPE_SLOT (GDK_DROP_START))
|
||
|
||
GdkEvent *
|
||
gdk_dnd_event_new (GdkEventType type,
|
||
GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDrop *drop,
|
||
guint32 time,
|
||
double x,
|
||
double y)
|
||
{
|
||
GdkDNDEvent *self;
|
||
|
||
g_return_val_if_fail (type == GDK_DRAG_ENTER ||
|
||
type == GDK_DRAG_MOTION ||
|
||
type == GDK_DRAG_LEAVE ||
|
||
type == GDK_DROP_START, NULL);
|
||
|
||
self = gdk_event_alloc (type, surface, device, NULL, time);
|
||
|
||
self->drop = drop != NULL ? g_object_ref (drop) : NULL;
|
||
self->x = x;
|
||
self->y = y;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
/**
|
||
* gdk_dnd_event_get_drop:
|
||
* @event: (type GdkDNDEvent): a DND event
|
||
*
|
||
* Gets the #GdkDrop from a DND event.
|
||
*
|
||
* Returns: (transfer none) (nullable): the drop
|
||
**/
|
||
GdkDrop *
|
||
gdk_dnd_event_get_drop (GdkEvent *event)
|
||
{
|
||
GdkDNDEvent *self = (GdkDNDEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), NULL);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_DRAG_ENTER) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_DRAG_MOTION) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_DRAG_LEAVE) ||
|
||
GDK_IS_EVENT_TYPE (event, GDK_DROP_START), NULL);
|
||
|
||
return self->drop;
|
||
}
|
||
|
||
/* }}} */
|
||
|
||
/* {{{ GdkGrabBrokenEvent */
|
||
|
||
static const GdkEventTypeInfo gdk_grab_broken_event_info = {
|
||
sizeof (GdkGrabBrokenEvent),
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
};
|
||
|
||
GDK_DEFINE_EVENT_TYPE (GdkGrabBrokenEvent, gdk_grab_broken_event,
|
||
&gdk_grab_broken_event_info,
|
||
GDK_EVENT_TYPE_SLOT (GDK_GRAB_BROKEN))
|
||
|
||
GdkEvent *
|
||
gdk_grab_broken_event_new (GdkSurface *surface,
|
||
GdkDevice *device,
|
||
GdkDevice *source_device,
|
||
GdkSurface *grab_surface,
|
||
gboolean implicit)
|
||
{
|
||
GdkGrabBrokenEvent *self = gdk_event_alloc (GDK_GRAB_BROKEN, surface, device, source_device, GDK_CURRENT_TIME);
|
||
|
||
self->grab_surface = grab_surface;
|
||
self->implicit = implicit;
|
||
self->keyboard = gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD;
|
||
|
||
return (GdkEvent *) self;
|
||
}
|
||
|
||
/**
|
||
* gdk_grab_broken_event_get_grab_surface:
|
||
* @event: (type GdkGrabBrokenEvent): a grab broken event
|
||
*
|
||
* Extracts the grab surface from a grab broken event.
|
||
*
|
||
* Returns: (transfer none): the grab surface of @event
|
||
**/
|
||
GdkSurface *
|
||
gdk_grab_broken_event_get_grab_surface (GdkEvent *event)
|
||
{
|
||
GdkGrabBrokenEvent *self = (GdkGrabBrokenEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), NULL);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_GRAB_BROKEN), NULL);
|
||
|
||
return self->grab_surface;
|
||
}
|
||
|
||
/**
|
||
* gdk_grab_broken_event_get_implicit:
|
||
* @event: (type GdkGrabBrokenEvent): a grab broken event
|
||
*
|
||
* Checks whether the grab broken event is for an implicit grab.
|
||
*
|
||
* Returns: %TRUE if the an implicit grab was broken
|
||
*/
|
||
gboolean
|
||
gdk_grab_broken_event_get_implicit (GdkEvent *event)
|
||
{
|
||
GdkGrabBrokenEvent *self = (GdkGrabBrokenEvent *) event;
|
||
|
||
g_return_val_if_fail (GDK_IS_EVENT (event), FALSE);
|
||
g_return_val_if_fail (GDK_IS_EVENT_TYPE (event, GDK_GRAB_BROKEN), FALSE);
|
||
|
||
return self->implicit;
|
||
}
|
||
|
||
/* }}} */
|