gtk: Add GtkGestureStylus
This is a GtkGesture done to deal with stylus events from drawing tablets. Those have a special number of characteristics that extend a regular pointer, so it makes sense to wrap that.
This commit is contained in:
parent
7793aab5f0
commit
a8463953a4
@ -216,6 +216,7 @@ gtk_public_h_sources = \
|
|||||||
gtkgesturepan.h \
|
gtkgesturepan.h \
|
||||||
gtkgesturerotate.h \
|
gtkgesturerotate.h \
|
||||||
gtkgesturesingle.h \
|
gtkgesturesingle.h \
|
||||||
|
gtkgesturestylus.h \
|
||||||
gtkgestureswipe.h \
|
gtkgestureswipe.h \
|
||||||
gtkgesturezoom.h \
|
gtkgesturezoom.h \
|
||||||
gtkglarea.h \
|
gtkglarea.h \
|
||||||
@ -494,6 +495,7 @@ gtk_private_h_sources = \
|
|||||||
gtkgesturepanprivate.h \
|
gtkgesturepanprivate.h \
|
||||||
gtkgesturerotateprivate.h \
|
gtkgesturerotateprivate.h \
|
||||||
gtkgesturesingleprivate.h \
|
gtkgesturesingleprivate.h \
|
||||||
|
gtkgesturestylusprivate.h \
|
||||||
gtkgestureswipeprivate.h \
|
gtkgestureswipeprivate.h \
|
||||||
gtkgesturezoomprivate.h \
|
gtkgesturezoomprivate.h \
|
||||||
gtkheaderbarprivate.h \
|
gtkheaderbarprivate.h \
|
||||||
@ -792,6 +794,7 @@ gtk_base_c_sources = \
|
|||||||
gtkgesturepan.c \
|
gtkgesturepan.c \
|
||||||
gtkgesturerotate.c \
|
gtkgesturerotate.c \
|
||||||
gtkgesturesingle.c \
|
gtkgesturesingle.c \
|
||||||
|
gtkgesturestylus.c \
|
||||||
gtkgestureswipe.c \
|
gtkgestureswipe.c \
|
||||||
gtkgesturezoom.c \
|
gtkgesturezoom.c \
|
||||||
gtkglarea.c \
|
gtkglarea.c \
|
||||||
|
@ -118,6 +118,7 @@
|
|||||||
#include <gtk/gtkgesturepan.h>
|
#include <gtk/gtkgesturepan.h>
|
||||||
#include <gtk/gtkgesturerotate.h>
|
#include <gtk/gtkgesturerotate.h>
|
||||||
#include <gtk/gtkgesturesingle.h>
|
#include <gtk/gtkgesturesingle.h>
|
||||||
|
#include <gtk/gtkgesturestylus.h>
|
||||||
#include <gtk/gtkgestureswipe.h>
|
#include <gtk/gtkgestureswipe.h>
|
||||||
#include <gtk/gtkgesturezoom.h>
|
#include <gtk/gtkgesturezoom.h>
|
||||||
#include <gtk/gtkglarea.h>
|
#include <gtk/gtkglarea.h>
|
||||||
|
269
gtk/gtkgesturestylus.c
Normal file
269
gtk/gtkgesturestylus.c
Normal file
@ -0,0 +1,269 @@
|
|||||||
|
/* GTK - The GIMP Toolkit
|
||||||
|
* Copyright (C) 2017-2018, Red Hat, Inc.
|
||||||
|
*
|
||||||
|
* This library is free software; you can redistribute it and/or
|
||||||
|
* modify it under the terms of the GNU Lesser General Public
|
||||||
|
* License as published by the Free Software Foundation; either
|
||||||
|
* version 2 of the License, or (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This library is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* Lesser General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Lesser General Public
|
||||||
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*
|
||||||
|
* Author(s): Carlos Garnacho <carlosg@gnome.org>
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* SECTION:gtkgesturestylus
|
||||||
|
* @Short_description: Gesture for stylus input
|
||||||
|
* @Title: GtkGestureStylus
|
||||||
|
* @See_also: #GtkGesture, #GtkGestureSingle
|
||||||
|
*
|
||||||
|
* #GtkGestureStylus is a #GtkGesture implementation specific to stylus
|
||||||
|
* input. The provided signals just provide the basic information
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "config.h"
|
||||||
|
#include "gtkgesturestylus.h"
|
||||||
|
#include "gtkgesturestylusprivate.h"
|
||||||
|
#include "gtkprivate.h"
|
||||||
|
#include "gtkintl.h"
|
||||||
|
#include "gtkmain.h"
|
||||||
|
|
||||||
|
G_DEFINE_TYPE (GtkGestureStylus, gtk_gesture_stylus, GTK_TYPE_GESTURE_SINGLE)
|
||||||
|
|
||||||
|
enum {
|
||||||
|
PROXIMITY,
|
||||||
|
DOWN,
|
||||||
|
MOTION,
|
||||||
|
UP,
|
||||||
|
N_SIGNALS
|
||||||
|
};
|
||||||
|
|
||||||
|
static guint signals[N_SIGNALS] = { 0, };
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
gtk_gesture_stylus_handle_event (GtkEventController *controller,
|
||||||
|
const GdkEvent *event)
|
||||||
|
{
|
||||||
|
GdkModifierType modifiers;
|
||||||
|
guint n_signal;
|
||||||
|
gdouble x, y;
|
||||||
|
|
||||||
|
GTK_EVENT_CONTROLLER_CLASS (gtk_gesture_stylus_parent_class)->handle_event (controller, event);
|
||||||
|
|
||||||
|
if (!gdk_event_get_device_tool (event))
|
||||||
|
return FALSE;
|
||||||
|
if (!gdk_event_get_coords (event, &x, &y))
|
||||||
|
return FALSE;
|
||||||
|
|
||||||
|
switch ((guint) gdk_event_get_event_type (event))
|
||||||
|
{
|
||||||
|
case GDK_BUTTON_PRESS:
|
||||||
|
n_signal = DOWN;
|
||||||
|
break;
|
||||||
|
case GDK_BUTTON_RELEASE:
|
||||||
|
n_signal = UP;
|
||||||
|
break;
|
||||||
|
case GDK_MOTION_NOTIFY:
|
||||||
|
gdk_event_get_state (event, &modifiers);
|
||||||
|
|
||||||
|
if (modifiers & GDK_BUTTON1_MASK)
|
||||||
|
n_signal = MOTION;
|
||||||
|
else
|
||||||
|
n_signal = PROXIMITY;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return FALSE;
|
||||||
|
}
|
||||||
|
|
||||||
|
g_signal_emit (controller, signals[n_signal], 0, x, y);
|
||||||
|
|
||||||
|
return TRUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gtk_gesture_stylus_class_init (GtkGestureStylusClass *klass)
|
||||||
|
{
|
||||||
|
GtkEventControllerClass *event_controller_class;
|
||||||
|
|
||||||
|
event_controller_class = GTK_EVENT_CONTROLLER_CLASS (klass);
|
||||||
|
event_controller_class->handle_event = gtk_gesture_stylus_handle_event;
|
||||||
|
|
||||||
|
signals[PROXIMITY] =
|
||||||
|
g_signal_new (I_("proximity"),
|
||||||
|
G_TYPE_FROM_CLASS (klass),
|
||||||
|
G_SIGNAL_RUN_LAST,
|
||||||
|
G_STRUCT_OFFSET (GtkGestureStylusClass, proximity),
|
||||||
|
NULL, NULL, NULL,
|
||||||
|
G_TYPE_NONE, 2, G_TYPE_DOUBLE, G_TYPE_DOUBLE);
|
||||||
|
signals[DOWN] =
|
||||||
|
g_signal_new (I_("down"),
|
||||||
|
G_TYPE_FROM_CLASS (klass),
|
||||||
|
G_SIGNAL_RUN_LAST,
|
||||||
|
G_STRUCT_OFFSET (GtkGestureStylusClass, down),
|
||||||
|
NULL, NULL, NULL,
|
||||||
|
G_TYPE_NONE, 2, G_TYPE_DOUBLE, G_TYPE_DOUBLE);
|
||||||
|
signals[MOTION] =
|
||||||
|
g_signal_new (I_("motion"),
|
||||||
|
G_TYPE_FROM_CLASS (klass),
|
||||||
|
G_SIGNAL_RUN_LAST,
|
||||||
|
G_STRUCT_OFFSET (GtkGestureStylusClass, motion),
|
||||||
|
NULL, NULL, NULL,
|
||||||
|
G_TYPE_NONE, 2, G_TYPE_DOUBLE, G_TYPE_DOUBLE);
|
||||||
|
signals[UP] =
|
||||||
|
g_signal_new (I_("up"),
|
||||||
|
G_TYPE_FROM_CLASS (klass),
|
||||||
|
G_SIGNAL_RUN_LAST,
|
||||||
|
G_STRUCT_OFFSET (GtkGestureStylusClass, up),
|
||||||
|
NULL, NULL, NULL,
|
||||||
|
G_TYPE_NONE, 2, G_TYPE_DOUBLE, G_TYPE_DOUBLE);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gtk_gesture_stylus_init (GtkGestureStylus *gesture)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* gtk_gesture_stylus_new:
|
||||||
|
* @widget: a #GtkWidget
|
||||||
|
*
|
||||||
|
* Creates a new #GtkGestureStylus.
|
||||||
|
*
|
||||||
|
* Returns: a newly created stylus gesture
|
||||||
|
*
|
||||||
|
* Since: 3.94
|
||||||
|
**/
|
||||||
|
GtkGesture *
|
||||||
|
gtk_gesture_stylus_new (GtkWidget *widget)
|
||||||
|
{
|
||||||
|
return g_object_new (GTK_TYPE_GESTURE_STYLUS,
|
||||||
|
"widget", widget,
|
||||||
|
NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
static const GdkEvent *
|
||||||
|
gesture_get_current_event (GtkGestureStylus *gesture)
|
||||||
|
{
|
||||||
|
GdkEventSequence *sequence;
|
||||||
|
|
||||||
|
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
|
||||||
|
|
||||||
|
return gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* gtk_gesture_stylus_get_axis:
|
||||||
|
* @gesture: a #GtkGestureStylus
|
||||||
|
* @axis: requested device axis
|
||||||
|
* @value: (out): return location for the axis value
|
||||||
|
*
|
||||||
|
* Returns the current value for the requested @axis. This function
|
||||||
|
* must be called from either the #GtkGestureStylus:down,
|
||||||
|
* #GtkGestureStylus:motion, #GtkGestureStylus:up or #GtkGestureStylus:proximity
|
||||||
|
* signals.
|
||||||
|
*
|
||||||
|
* Returns: #TRUE if there is a current value for the axis
|
||||||
|
*
|
||||||
|
* Since: 3.94
|
||||||
|
**/
|
||||||
|
gboolean
|
||||||
|
gtk_gesture_stylus_get_axis (GtkGestureStylus *gesture,
|
||||||
|
GdkAxisUse axis,
|
||||||
|
gdouble *value)
|
||||||
|
{
|
||||||
|
const GdkEvent *event;
|
||||||
|
|
||||||
|
g_return_val_if_fail (GTK_IS_GESTURE_STYLUS (gesture), FALSE);
|
||||||
|
g_return_val_if_fail (axis < GDK_AXIS_LAST, FALSE);
|
||||||
|
g_return_val_if_fail (value != NULL, FALSE);
|
||||||
|
|
||||||
|
event = gesture_get_current_event (gesture);
|
||||||
|
if (!event)
|
||||||
|
return FALSE;
|
||||||
|
|
||||||
|
return gdk_event_get_axis (event, axis, value);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* gtk_gesture_stylus_get_axes:
|
||||||
|
* @gesture: a GtkGestureStylus
|
||||||
|
* @axes: array of requested axes, terminated with #GDK_AXIS_IGNORE
|
||||||
|
* @values: (out): return location for the axis values
|
||||||
|
*
|
||||||
|
* Returns the current values for the requested @axes. This function
|
||||||
|
* must be called from either the #GtkGestureStylus:down,
|
||||||
|
* #GtkGestureStylus:motion, #GtkGestureStylus:up or #GtkGestureStylus:proximity
|
||||||
|
* signals.
|
||||||
|
*
|
||||||
|
* Returns: #TRUE if there is a current value for the axes
|
||||||
|
**/
|
||||||
|
gboolean
|
||||||
|
gtk_gesture_stylus_get_axes (GtkGestureStylus *gesture,
|
||||||
|
GdkAxisUse axes[],
|
||||||
|
gdouble **values)
|
||||||
|
{
|
||||||
|
const GdkEvent *event;
|
||||||
|
GArray *array;
|
||||||
|
gint i = 0;
|
||||||
|
|
||||||
|
g_return_val_if_fail (GTK_IS_GESTURE_STYLUS (gesture), FALSE);
|
||||||
|
g_return_val_if_fail (values != NULL, FALSE);
|
||||||
|
|
||||||
|
event = gesture_get_current_event (gesture);
|
||||||
|
if (!event)
|
||||||
|
return FALSE;
|
||||||
|
|
||||||
|
array = g_array_new (TRUE, FALSE, sizeof (gdouble));
|
||||||
|
|
||||||
|
while (axes[i] != GDK_AXIS_IGNORE)
|
||||||
|
{
|
||||||
|
gdouble value;
|
||||||
|
|
||||||
|
if (axes[i] >= GDK_AXIS_LAST)
|
||||||
|
{
|
||||||
|
g_warning ("Requesting unknown axis %d, did you "
|
||||||
|
"forget to add a last GDK_AXIS_IGNORE axis?",
|
||||||
|
axes[i]);
|
||||||
|
g_array_free (array, TRUE);
|
||||||
|
return FALSE;
|
||||||
|
}
|
||||||
|
|
||||||
|
gdk_event_get_axis (event, axes[i], &value);
|
||||||
|
g_array_append_val (array, value);
|
||||||
|
i++;
|
||||||
|
}
|
||||||
|
|
||||||
|
*values = (gdouble *) g_array_free (array, FALSE);
|
||||||
|
return TRUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* gtk_gesture_stylus_get_device_tool:
|
||||||
|
* @gesture: a #GtkGestureStylus
|
||||||
|
*
|
||||||
|
* Returns the #GdkDeviceTool currently driving input through this gesture.
|
||||||
|
* This function must be called from either the #GtkGestureStylus:down,
|
||||||
|
* #GtkGestureStylus:motion, #GtkGestureStylus:up or #GtkGestureStylus:proximity
|
||||||
|
* signals.
|
||||||
|
*
|
||||||
|
* Returns: (nullable) (transfer none): The current stylus tool
|
||||||
|
**/
|
||||||
|
GdkDeviceTool *
|
||||||
|
gtk_gesture_stylus_get_device_tool (GtkGestureStylus *gesture)
|
||||||
|
{
|
||||||
|
const GdkEvent *event;
|
||||||
|
|
||||||
|
g_return_val_if_fail (GTK_IS_GESTURE_STYLUS (gesture), FALSE);
|
||||||
|
|
||||||
|
event = gesture_get_current_event (gesture);
|
||||||
|
if (!event)
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
return gdk_event_get_device_tool (event);
|
||||||
|
}
|
59
gtk/gtkgesturestylus.h
Normal file
59
gtk/gtkgesturestylus.h
Normal file
@ -0,0 +1,59 @@
|
|||||||
|
/* GTK - The GIMP Toolkit
|
||||||
|
* Copyright (C) 2017-2018, Red Hat, Inc.
|
||||||
|
*
|
||||||
|
* This library is free software; you can redistribute it and/or
|
||||||
|
* modify it under the terms of the GNU Lesser General Public
|
||||||
|
* License as published by the Free Software Foundation; either
|
||||||
|
* version 2 of the License, or (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This library is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* Lesser General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Lesser General Public
|
||||||
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*
|
||||||
|
* Author(s): Carlos Garnacho <carlosg@gnome.org>
|
||||||
|
*/
|
||||||
|
#ifndef __GTK_GESTURE_STYLUS_H__
|
||||||
|
#define __GTK_GESTURE_STYLUS_H__
|
||||||
|
|
||||||
|
#include <gtk/gtkgesture.h>
|
||||||
|
|
||||||
|
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
|
||||||
|
#error "Only <gtk/gtk.h> can be included directly."
|
||||||
|
#endif
|
||||||
|
|
||||||
|
G_BEGIN_DECLS
|
||||||
|
|
||||||
|
#define GTK_TYPE_GESTURE_STYLUS (gtk_gesture_stylus_get_type ())
|
||||||
|
#define GTK_GESTURE_STYLUS(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_GESTURE_STYLUS, GtkGestureStylus))
|
||||||
|
#define GTK_GESTURE_STYLUS_CLASS(k) (G_TYPE_CHECK_CLASS_CAST ((k), GTK_TYPE_GESTURE_STYLUS, GtkGestureStylusClass))
|
||||||
|
#define GTK_IS_GESTURE_STYLUS(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_GESTURE_STYLUS))
|
||||||
|
#define GTK_IS_GESTURE_STYLUS_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), GTK_TYPE_GESTURE_STYLUS))
|
||||||
|
#define GTK_GESTURE_STYLUS_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GTK_TYPE_GESTURE_STYLUS, GtkGestureStylusClass))
|
||||||
|
|
||||||
|
typedef struct _GtkGestureStylus GtkGestureStylus;
|
||||||
|
typedef struct _GtkGestureStylusClass GtkGestureStylusClass;
|
||||||
|
|
||||||
|
GDK_AVAILABLE_IN_ALL
|
||||||
|
GType gtk_gesture_stylus_get_type (void) G_GNUC_CONST;
|
||||||
|
|
||||||
|
GDK_AVAILABLE_IN_ALL
|
||||||
|
GtkGesture * gtk_gesture_stylus_new (GtkWidget *widget);
|
||||||
|
|
||||||
|
GDK_AVAILABLE_IN_ALL
|
||||||
|
gboolean gtk_gesture_stylus_get_axis (GtkGestureStylus *gesture,
|
||||||
|
GdkAxisUse axis,
|
||||||
|
gdouble *value);
|
||||||
|
GDK_AVAILABLE_IN_ALL
|
||||||
|
gboolean gtk_gesture_stylus_get_axes (GtkGestureStylus *gesture,
|
||||||
|
GdkAxisUse axes[],
|
||||||
|
gdouble **values);
|
||||||
|
GDK_AVAILABLE_IN_ALL
|
||||||
|
GdkDeviceTool * gtk_gesture_stylus_get_device_tool (GtkGestureStylus *gesture);
|
||||||
|
|
||||||
|
G_END_DECLS
|
||||||
|
|
||||||
|
#endif /* __GTK_GESTURE_STYLUS_H__ */
|
51
gtk/gtkgesturestylusprivate.h
Normal file
51
gtk/gtkgesturestylusprivate.h
Normal file
@ -0,0 +1,51 @@
|
|||||||
|
/* GTK - The GIMP Toolkit
|
||||||
|
* Copyright (C) 2017-2018, Red Hat, Inc.
|
||||||
|
*
|
||||||
|
* This library is free software; you can redistribute it and/or
|
||||||
|
* modify it under the terms of the GNU Lesser General Public
|
||||||
|
* License as published by the Free Software Foundation; either
|
||||||
|
* version 2 of the License, or (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This library is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* Lesser General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Lesser General Public
|
||||||
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*
|
||||||
|
* Author(s): Carlos Garnacho <carlosg@gnome.org>
|
||||||
|
*/
|
||||||
|
#ifndef __GTK_GESTURE_STYLUS_PRIVATE_H__
|
||||||
|
#define __GTK_GESTURE_STYLUS_PRIVATE_H__
|
||||||
|
|
||||||
|
#include "gtkgesturesingleprivate.h"
|
||||||
|
#include "gtkgesturestylus.h"
|
||||||
|
|
||||||
|
struct _GtkGestureStylus
|
||||||
|
{
|
||||||
|
GtkGestureSingle parent_instance;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct _GtkGestureStylusClass
|
||||||
|
{
|
||||||
|
GtkGestureSingleClass parent_class;
|
||||||
|
|
||||||
|
void (*proximity) (GtkGestureStylus *gesture,
|
||||||
|
gdouble x,
|
||||||
|
gdouble y);
|
||||||
|
void (*down) (GtkGestureStylus *gesture,
|
||||||
|
gdouble x,
|
||||||
|
gdouble y);
|
||||||
|
void (*motion) (GtkGestureStylus *gesture,
|
||||||
|
gdouble x,
|
||||||
|
gdouble y);
|
||||||
|
void (*up) (GtkGestureStylus *gesture,
|
||||||
|
gdouble x,
|
||||||
|
gdouble y);
|
||||||
|
|
||||||
|
/*< private >*/
|
||||||
|
gpointer padding[10];
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif /* __GTK_GESTURE_STYLUS_PRIVATE_H__ */
|
@ -173,6 +173,7 @@ gtk/gtkgesturemultipress.c
|
|||||||
gtk/gtkgesturepan.c
|
gtk/gtkgesturepan.c
|
||||||
gtk/gtkgesturerotate.c
|
gtk/gtkgesturerotate.c
|
||||||
gtk/gtkgesturesingle.c
|
gtk/gtkgesturesingle.c
|
||||||
|
gtk/gtkgesturestylus.c
|
||||||
gtk/gtkgestureswipe.c
|
gtk/gtkgestureswipe.c
|
||||||
gtk/gtkgesturezoom.c
|
gtk/gtkgesturezoom.c
|
||||||
gtk/gtkglarea.c
|
gtk/gtkglarea.c
|
||||||
|
Loading…
Reference in New Issue
Block a user