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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "PenTool.h"
#include "ImageEditor.h"
#include "Layer.h"
#include <LibGUI/Action.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Label.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Painter.h>
#include <LibGUI/ValueSlider.h>
namespace PixelPaint {
PenTool::PenTool()
{
}
PenTool::~PenTool()
{
}
void PenTool::on_mousedown(Layer* layer, MouseEvent& event)
{
if (!layer)
return;
auto& layer_event = event.layer_event();
if (layer_event.button() != GUI::MouseButton::Left && layer_event.button() != GUI::MouseButton::Right)
return;
GUI::Painter painter(layer->bitmap());
painter.draw_line(layer_event.position(), layer_event.position(), m_editor->color_for(layer_event), m_thickness);
layer->did_modify_bitmap(Gfx::IntRect::centered_on(layer_event.position(), Gfx::IntSize { m_thickness + 2, m_thickness + 2 }));
m_last_drawing_event_position = layer_event.position();
}
void PenTool::on_mouseup(Layer* layer, MouseEvent& event)
{
if (!layer)
return;
auto& layer_event = event.layer_event();
if (layer_event.button() == GUI::MouseButton::Left || layer_event.button() == GUI::MouseButton::Right) {
m_last_drawing_event_position = { -1, -1 };
m_editor->did_complete_action();
}
}
void PenTool::on_mousemove(Layer* layer, MouseEvent& event)
{
if (!layer)
return;
auto& layer_event = event.layer_event();
if (!(layer_event.buttons() & GUI::MouseButton::Left || layer_event.buttons() & GUI::MouseButton::Right))
return;
GUI::Painter painter(layer->bitmap());
Gfx::IntRect changed_rect;
if (m_last_drawing_event_position != Gfx::IntPoint(-1, -1)) {
painter.draw_line(m_last_drawing_event_position, layer_event.position(), m_editor->color_for(layer_event), m_thickness);
changed_rect = Gfx::IntRect::from_two_points(m_last_drawing_event_position, layer_event.position());
} else {
painter.draw_line(layer_event.position(), layer_event.position(), m_editor->color_for(layer_event), m_thickness);
changed_rect = Gfx::IntRect::from_two_points(layer_event.position(), layer_event.position());
}
changed_rect.inflate(m_thickness + 2, m_thickness + 2);
layer->did_modify_bitmap(changed_rect);
m_last_drawing_event_position = layer_event.position();
}
GUI::Widget* PenTool::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>("Thickness:");
thickness_label.set_text_alignment(Gfx::TextAlignment::CenterLeft);
thickness_label.set_fixed_size(80, 20);
auto& thickness_slider = thickness_container.add<GUI::ValueSlider>(Orientation::Horizontal, "px");
thickness_slider.set_range(1, 20);
thickness_slider.set_value(m_thickness);
thickness_slider.on_change = [&](int value) {
m_thickness = value;
};
}
return m_properties_widget.ptr();
}
}
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