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gimp/app/widgets/gimpcontrollerwheel.c

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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpcontrollerwheel.c
* Copyright (C) 2004 Michael Natterer <mitch@gimp.org>
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "gimpcontrollerwheel.h"
#include "gimphelp-ids.h"
#include "gimpwidgets-utils.h"
#include "gimp-intl.h"
typedef struct _WheelEvent WheelEvent;
struct _WheelEvent
{
GdkScrollDirection direction;
GdkModifierType modifiers;
const gchar *name;
gchar *blurb;
};
static void gimp_controller_wheel_class_init (GimpControllerWheelClass *klass);
static void gimp_controller_wheel_init (GimpControllerWheel *wheel);
static GObject * gimp_controller_wheel_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
static gint gimp_controller_wheel_get_n_events (GimpController *controller);
static const gchar * gimp_controller_wheel_get_event_name (GimpController *controller,
gint event_id);
static const gchar * gimp_controller_wheel_get_event_blurb (GimpController *controller,
gint event_id);
static GimpControllerClass *parent_class = NULL;
static WheelEvent wheel_events[] =
{
{ GDK_SCROLL_UP, GDK_MOD1_MASK | GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"scroll-up-shift-control-alt",
N_("Scroll Up") },
{ GDK_SCROLL_UP, GDK_MOD1_MASK | GDK_CONTROL_MASK,
"scroll-up-control-alt",
N_("Scroll Up") },
{ GDK_SCROLL_UP, GDK_MOD1_MASK | GDK_SHIFT_MASK,
"scroll-up-shift-alt",
N_("Scroll Up") },
{ GDK_SCROLL_UP, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"scroll-up-shift-control",
N_("Scroll Up") },
{ GDK_SCROLL_UP, GDK_MOD1_MASK,
"scroll-up-alt",
N_("Scroll Up") },
{ GDK_SCROLL_UP, GDK_CONTROL_MASK,
"scroll-up-control",
N_("Scroll Up") },
{ GDK_SCROLL_UP, GDK_SHIFT_MASK,
"scroll-up-shift",
N_("Scroll Up") },
{ GDK_SCROLL_UP, 0,
"scroll-up",
N_("Scroll Up") },
{ GDK_SCROLL_DOWN, GDK_MOD1_MASK | GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"scroll-down-shift-control-alt",
N_("Scroll Down") },
{ GDK_SCROLL_DOWN, GDK_MOD1_MASK | GDK_CONTROL_MASK,
"scroll-down-control-alt",
N_("Scroll Down") },
{ GDK_SCROLL_DOWN, GDK_MOD1_MASK | GDK_SHIFT_MASK,
"scroll-down-shift-alt",
N_("Scroll Down") },
{ GDK_SCROLL_DOWN, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"scroll-down-shift-control",
N_("Scroll Down") },
{ GDK_SCROLL_DOWN, GDK_MOD1_MASK,
"scroll-down-alt",
N_("Scroll Down") },
{ GDK_SCROLL_DOWN, GDK_CONTROL_MASK,
"scroll-down-control",
N_("Scroll Down") },
{ GDK_SCROLL_DOWN, GDK_SHIFT_MASK,
"scroll-down-shift",
N_("Scroll Down") },
{ GDK_SCROLL_DOWN, 0,
"scroll-down",
N_("Scroll Down") },
{ GDK_SCROLL_LEFT, GDK_MOD1_MASK | GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"scroll-left-shift-control-alt",
N_("Scroll Left") },
{ GDK_SCROLL_LEFT, GDK_MOD1_MASK | GDK_CONTROL_MASK,
"scroll-left-control-alt",
N_("Scroll Left") },
{ GDK_SCROLL_LEFT, GDK_MOD1_MASK | GDK_SHIFT_MASK,
"scroll-left-shift-alt",
N_("Scroll Left") },
{ GDK_SCROLL_LEFT, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"scroll-left-shift-control",
N_("Scroll Left") },
{ GDK_SCROLL_LEFT, GDK_MOD1_MASK,
"scroll-left-alt",
N_("Scroll Left") },
{ GDK_SCROLL_LEFT, GDK_CONTROL_MASK,
"scroll-left-control",
N_("Scroll Left") },
{ GDK_SCROLL_LEFT, GDK_SHIFT_MASK,
"scroll-left-shift",
N_("Scroll Left") },
{ GDK_SCROLL_LEFT, 0,
"scroll-left",
N_("Scroll Left") },
{ GDK_SCROLL_RIGHT, GDK_MOD1_MASK | GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"scroll-right-shift-control-alt",
N_("Scroll Right") },
{ GDK_SCROLL_RIGHT, GDK_MOD1_MASK | GDK_CONTROL_MASK,
"scroll-right-control-alt",
N_("Scroll Right") },
{ GDK_SCROLL_RIGHT, GDK_MOD1_MASK | GDK_SHIFT_MASK,
"scroll-right-shift-alt",
N_("Scroll Right") },
{ GDK_SCROLL_RIGHT, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"scroll-right-shift-control",
N_("Scroll Right") },
{ GDK_SCROLL_RIGHT, GDK_MOD1_MASK,
"scroll-right-alt",
N_("Scroll Right") },
{ GDK_SCROLL_RIGHT, GDK_CONTROL_MASK,
"scroll-right-control",
N_("Scroll Right") },
{ GDK_SCROLL_RIGHT, GDK_SHIFT_MASK,
"scroll-right-shift",
N_("Scroll Right") },
{ GDK_SCROLL_RIGHT, 0,
"scroll-right",
N_("Scroll Right") }
};
GType
gimp_controller_wheel_get_type (void)
{
static GType controller_type = 0;
if (! controller_type)
{
static const GTypeInfo controller_info =
{
sizeof (GimpControllerWheelClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_controller_wheel_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpControllerWheel),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_controller_wheel_init,
};
controller_type = g_type_register_static (GIMP_TYPE_CONTROLLER,
"GimpControllerWheel",
&controller_info, 0);
}
return controller_type;
}
static void
gimp_controller_wheel_class_init (GimpControllerWheelClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpControllerClass *controller_class = GIMP_CONTROLLER_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->constructor = gimp_controller_wheel_constructor;
controller_class->name = _("Mouse Wheel");
controller_class->help_id = GIMP_HELP_CONTROLLER_WHEEL;
controller_class->get_n_events = gimp_controller_wheel_get_n_events;
controller_class->get_event_name = gimp_controller_wheel_get_event_name;
controller_class->get_event_blurb = gimp_controller_wheel_get_event_blurb;
}
static void
gimp_controller_wheel_init (GimpControllerWheel *wheel)
{
static gboolean event_names_initialized = FALSE;
if (! event_names_initialized)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (wheel_events); i++)
{
WheelEvent *wevent = &wheel_events[i];
if (wevent->modifiers != 0)
{
wevent->blurb =
g_strdup_printf ("%s (%s)", gettext (wevent->blurb),
gimp_get_mod_string (wevent->modifiers));
}
}
event_names_initialized = TRUE;
}
}
static GObject *
gimp_controller_wheel_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
g_object_set (object,
"name", _("Mouse Wheel Events"),
"state", _("Ready"),
NULL);
return object;
}
static gint
gimp_controller_wheel_get_n_events (GimpController *controller)
{
return G_N_ELEMENTS (wheel_events);
}
static const gchar *
gimp_controller_wheel_get_event_name (GimpController *controller,
gint event_id)
{
if (event_id < 0 || event_id >= G_N_ELEMENTS (wheel_events))
return NULL;
return wheel_events[event_id].name;
}
static const gchar *
gimp_controller_wheel_get_event_blurb (GimpController *controller,
gint event_id)
{
if (event_id < 0 || event_id >= G_N_ELEMENTS (wheel_events))
return NULL;
return wheel_events[event_id].blurb;
}
gboolean
gimp_controller_wheel_scroll (GimpControllerWheel *wheel,
const GdkEventScroll *sevent)
{
gint i;
g_return_val_if_fail (GIMP_IS_CONTROLLER_WHEEL (wheel), FALSE);
g_return_val_if_fail (sevent != NULL, FALSE);
for (i = 0; i < G_N_ELEMENTS (wheel_events); i++)
{
if (wheel_events[i].direction == sevent->direction)
{
if ((wheel_events[i].modifiers & sevent->state) ==
wheel_events[i].modifiers)
{
GimpControllerEvent controller_event;
GimpControllerEventTrigger *trigger;
trigger = (GimpControllerEventTrigger *) &controller_event;
trigger->type = GIMP_CONTROLLER_EVENT_TRIGGER;
trigger->source = GIMP_CONTROLLER (wheel);
trigger->event_id = i;
if (gimp_controller_event (GIMP_CONTROLLER (wheel),
&controller_event))
{
return TRUE;
}
}
}
}
return FALSE;
}
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