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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "MoveTool.h"
#include "Image.h"
#include "ImageEditor.h"
#include "Layer.h"
#include <LibGUI/Action.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Window.h>
#include <LibGfx/Bitmap.h>
namespace PixelPaint {
MoveTool::MoveTool()
{
}
MoveTool::~MoveTool()
{
}
void MoveTool::on_mousedown(Layer& layer, GUI::MouseEvent& event, GUI::MouseEvent& image_event)
{
if (event.button() != GUI::MouseButton::Left)
return;
if (!layer.rect().contains(event.position()))
return;
m_layer_being_moved = layer;
m_event_origin = image_event.position();
m_layer_origin = layer.location();
m_editor->window()->set_cursor(Gfx::StandardCursor::Move);
}
void MoveTool::on_mousemove(Layer&, GUI::MouseEvent&, GUI::MouseEvent& image_event)
{
if (!m_layer_being_moved)
return;
auto delta = image_event.position() - m_event_origin;
m_layer_being_moved->set_location(m_layer_origin.translated(delta));
m_editor->layers_did_change();
}
void MoveTool::on_mouseup(Layer&, GUI::MouseEvent& event, GUI::MouseEvent&)
{
if (event.button() != GUI::MouseButton::Left)
return;
m_layer_being_moved = nullptr;
m_editor->window()->set_cursor(Gfx::StandardCursor::None);
m_editor->did_complete_action();
}
void MoveTool::on_keydown(GUI::KeyEvent& event)
{
if (event.modifiers() != 0)
return;
auto* layer = m_editor->active_layer();
if (!layer)
return;
auto new_location = layer->location();
switch (event.key()) {
case Key_Up:
new_location.move_by(0, -1);
break;
case Key_Down:
new_location.move_by(0, 1);
break;
case Key_Left:
new_location.move_by(-1, 0);
break;
case Key_Right:
new_location.move_by(1, 0);
break;
default:
return;
}
layer->set_location(new_location);
m_editor->layers_did_change();
}
void MoveTool::on_context_menu(Layer& layer, GUI::ContextMenuEvent& event)
{
if (!m_context_menu) {
m_context_menu = GUI::Menu::construct();
m_context_menu->add_action(GUI::CommonActions::make_move_to_front_action(
[this](auto&) {
m_editor->image()->move_layer_to_front(*m_context_menu_layer);
m_editor->layers_did_change();
},
m_editor));
m_context_menu->add_action(GUI::CommonActions::make_move_to_back_action(
[this](auto&) {
m_editor->image()->move_layer_to_back(*m_context_menu_layer);
m_editor->layers_did_change();
},
m_editor));
m_context_menu->add_separator();
m_context_menu->add_action(GUI::Action::create(
"Delete layer", Gfx::Bitmap::load_from_file("/res/icons/16x16/delete.png"), [this](auto&) {
m_editor->image()->remove_layer(*m_context_menu_layer);
// FIXME: This should not be done imperatively here. Perhaps a Image::Client interface that ImageEditor can implement?
if (m_editor->active_layer() == m_context_menu_layer)
m_editor->set_active_layer(nullptr);
m_editor->layers_did_change();
},
m_editor));
}
m_context_menu_layer = layer;
m_context_menu->popup(event.screen_position());
}
}
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