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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "EraseTool.h"
#include "ImageEditor.h"
#include "Layer.h"
#include <LibGUI/Action.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/CheckBox.h>
#include <LibGUI/Label.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Painter.h>
#include <LibGUI/Slider.h>
#include <LibGfx/Bitmap.h>
namespace PixelPaint {
EraseTool::EraseTool()
{
}
EraseTool::~EraseTool()
{
}
Gfx::IntRect EraseTool::build_rect(Gfx::IntPoint const& pos, Gfx::IntRect const& widget_rect)
{
const int base_eraser_size = 10;
const int eraser_size = (base_eraser_size * m_thickness);
const int eraser_radius = eraser_size / 2;
const auto ex = pos.x();
const auto ey = pos.y();
return Gfx::IntRect(ex - eraser_radius, ey - eraser_radius, eraser_size, eraser_size).intersected(widget_rect);
}
void EraseTool::on_mousedown(Layer& layer, GUI::MouseEvent& event, GUI::MouseEvent&)
{
if (event.button() != GUI::MouseButton::Left && event.button() != GUI::MouseButton::Right)
return;
Gfx::IntRect r = build_rect(event.position(), layer.rect());
GUI::Painter painter(layer.bitmap());
painter.clear_rect(r, get_color());
layer.did_modify_bitmap();
}
void EraseTool::on_mousemove(Layer& layer, GUI::MouseEvent& event, GUI::MouseEvent&)
{
if (event.buttons() & GUI::MouseButton::Left || event.buttons() & GUI::MouseButton::Right) {
Gfx::IntRect r = build_rect(event.position(), layer.rect());
GUI::Painter painter(layer.bitmap());
painter.clear_rect(r, get_color());
layer.did_modify_bitmap();
}
}
void EraseTool::on_mouseup(Layer&, GUI::MouseEvent& event, GUI::MouseEvent&)
{
if (event.button() != GUI::MouseButton::Left && event.button() != GUI::MouseButton::Right)
return;
m_editor->did_complete_action();
}
Color EraseTool::get_color() const
{
if (m_use_secondary_color)
return m_editor->secondary_color();
return Color(255, 255, 255, 0);
}
GUI::Widget* EraseTool::get_properties_widget()
{
if (!m_properties_widget) {
m_properties_widget = GUI::Widget::construct();
m_properties_widget->set_layout<GUI::VerticalBoxLayout>();
auto& thickness_container = m_properties_widget->add<GUI::Widget>();
thickness_container.set_fixed_height(20);
thickness_container.set_layout<GUI::HorizontalBoxLayout>();
auto& thickness_label = thickness_container.add<GUI::Label>("Size:");
thickness_label.set_text_alignment(Gfx::TextAlignment::CenterLeft);
thickness_label.set_fixed_size(80, 20);
auto& thickness_slider = thickness_container.add<GUI::HorizontalSlider>();
thickness_slider.set_fixed_height(20);
thickness_slider.set_range(1, 5);
thickness_slider.set_value(m_thickness);
thickness_slider.on_change = [&](int value) {
m_thickness = value;
};
auto& checkbox_container = m_properties_widget->add<GUI::Widget>();
checkbox_container.set_fixed_height(20);
checkbox_container.set_layout<GUI::HorizontalBoxLayout>();
auto& use_secondary_color_checkbox = checkbox_container.add<GUI::CheckBox>();
use_secondary_color_checkbox.set_checked(m_use_secondary_color);
use_secondary_color_checkbox.set_text("Use secondary color");
use_secondary_color_checkbox.on_checked = [&](bool checked) {
m_use_secondary_color = checked;
};
}
return m_properties_widget.ptr();
}
}
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