aseprite/src/widgets/preview.cpp

121 lines
2.9 KiB
C++

/* ASE - Allegro Sprite Editor
* Copyright (C) 2001-2010 David Capello
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <assert.h>
#include "jinete/jmanager.h"
#include "jinete/jmessage.h"
#include "jinete/jwidget.h"
#include "effect/effect.h"
#include "raster/sprite.h"
#include "util/render.h"
#include "widgets/preview.h"
typedef struct Preview
{
Effect *effect;
int timer_id;
} Preview;
static bool preview_msg_proc(JWidget widget, JMessage msg);
/**
* Invisible widget to control a effect-preview.
*/
JWidget preview_new(Effect *effect)
{
Widget* widget = new Widget(preview_type());
Preview *preview = jnew(Preview, 1);
preview->effect = effect;
preview->timer_id = -1;
jwidget_add_hook(widget, preview_type(), preview_msg_proc, preview);
jwidget_hide(widget);
return widget;
}
int preview_type()
{
static int type = 0;
if (!type)
type = ji_register_widget_type();
return type;
}
void preview_restart(JWidget widget)
{
assert_valid_widget(widget);
Preview* preview = reinterpret_cast<Preview*>(jwidget_get_data(widget, preview_type()));
effect_begin_for_preview(preview->effect);
if (preview->timer_id < 0)
preview->timer_id = jmanager_add_timer(widget, 1);
jmanager_start_timer(preview->timer_id);
}
Effect *preview_get_effect(JWidget widget)
{
assert_valid_widget(widget);
Preview* preview = reinterpret_cast<Preview*>(jwidget_get_data(widget, preview_type()));
return preview->effect;
}
static bool preview_msg_proc(JWidget widget, JMessage msg)
{
Preview* preview = reinterpret_cast<Preview*>(jwidget_get_data(widget, preview_type()));
Effect* effect = preview_get_effect(widget);
switch (msg->type) {
case JM_DESTROY:
if (preview->timer_id >= 0)
jmanager_remove_timer(preview->timer_id);
jfree(preview);
break;
case JM_OPEN:
RenderEngine::setPreviewImage(effect->sprite->getCurrentLayer(), effect->dst);
break;
case JM_CLOSE:
RenderEngine::setPreviewImage(NULL, NULL);
/* stop the preview timer */
jmanager_stop_timer(preview->timer_id);
break;
case JM_TIMER:
if (effect) {
if (effect_apply_step(effect))
effect_flush(effect);
else
jmanager_stop_timer(preview->timer_id);
}
break;
}
return false;
}