aseprite/src/app/cmd/add_layer.cpp

96 lines
2.1 KiB
C++

// Aseprite
// Copyright (C) 2001-2018 David Capello
//
// This program is distributed under the terms of
// the End-User License Agreement for Aseprite.
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "app/cmd/add_layer.h"
#include "app/doc.h"
#include "app/doc_event.h"
#include "doc/layer.h"
#include "doc/layer_io.h"
#include "doc/subobjects_io.h"
namespace app { namespace cmd {
using namespace doc;
AddLayer::AddLayer(Layer* group, Layer* newLayer, Layer* afterThis)
: m_group(group)
, m_newLayer(newLayer)
, m_afterThis(afterThis)
, m_size(0)
{
}
void AddLayer::onExecute()
{
Layer* group = m_group.layer();
Layer* newLayer = m_newLayer.layer();
Layer* afterThis = m_afterThis.layer();
addLayer(group, newLayer, afterThis);
}
void AddLayer::onUndo()
{
Layer* group = m_group.layer();
Layer* layer = m_newLayer.layer();
write_layer(m_stream, layer);
m_size = size_t(m_stream.tellp());
removeLayer(group, layer);
}
void AddLayer::onRedo()
{
Layer* group = m_group.layer();
SubObjectsFromSprite io(group->sprite());
Layer* newLayer = read_layer(m_stream, &io);
Layer* afterThis = m_afterThis.layer();
addLayer(group, newLayer, afterThis);
m_stream.str(std::string());
m_stream.clear();
m_size = 0;
}
void AddLayer::addLayer(Layer* group, Layer* newLayer, Layer* afterThis)
{
static_cast<LayerGroup*>(group)->insertLayer(newLayer, afterThis);
group->incrementVersion();
group->sprite()->incrementVersion();
Doc* doc = static_cast<Doc*>(group->sprite()->document());
DocEvent ev(doc);
ev.sprite(group->sprite());
ev.layer(newLayer);
doc->notify_observers<DocEvent&>(&DocObserver::onAddLayer, ev);
}
void AddLayer::removeLayer(Layer* group, Layer* layer)
{
Doc* doc = static_cast<Doc*>(group->sprite()->document());
DocEvent ev(doc);
ev.sprite(layer->sprite());
ev.layer(layer);
doc->notify_observers<DocEvent&>(&DocObserver::onBeforeRemoveLayer, ev);
static_cast<LayerGroup*>(group)->removeLayer(layer);
group->incrementVersion();
group->sprite()->incrementVersion();
doc->notify_observers<DocEvent&>(&DocObserver::onAfterRemoveLayer, ev);
delete layer;
}
}} // namespace app::cmd