mirror of
https://github.com/RGBCube/serenity
synced 2025-05-17 22:05:08 +00:00
0c4977161f
Remove the context menu for LineTool and use the tool properties widget for options instead.
129 lines
4.1 KiB
C++
129 lines
4.1 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include "LineTool.h"
|
|
#include "ImageEditor.h"
|
|
#include "Layer.h"
|
|
#include <AK/Math.h>
|
|
#include <LibGUI/Action.h>
|
|
#include <LibGUI/BoxLayout.h>
|
|
#include <LibGUI/Label.h>
|
|
#include <LibGUI/Menu.h>
|
|
#include <LibGUI/Painter.h>
|
|
#include <LibGUI/Slider.h>
|
|
|
|
namespace PixelPaint {
|
|
|
|
static Gfx::IntPoint constrain_line_angle(Gfx::IntPoint const& start_pos, Gfx::IntPoint const& end_pos, float angle_increment)
|
|
{
|
|
float current_angle = AK::atan2<float>(end_pos.y() - start_pos.y(), end_pos.x() - start_pos.x()) + float { M_PI * 2 };
|
|
|
|
float constrained_angle = ((int)((current_angle + angle_increment / 2) / angle_increment)) * angle_increment;
|
|
|
|
auto diff = end_pos - start_pos;
|
|
float line_length = AK::hypot<float>(diff.x(), diff.y());
|
|
|
|
return { start_pos.x() + (int)(AK::cos(constrained_angle) * line_length),
|
|
start_pos.y() + (int)(AK::sin(constrained_angle) * line_length) };
|
|
}
|
|
|
|
LineTool::LineTool()
|
|
{
|
|
}
|
|
|
|
LineTool::~LineTool()
|
|
{
|
|
}
|
|
|
|
void LineTool::on_mousedown(Layer&, GUI::MouseEvent& layer_event, GUI::MouseEvent&)
|
|
{
|
|
if (layer_event.button() != GUI::MouseButton::Left && layer_event.button() != GUI::MouseButton::Right)
|
|
return;
|
|
|
|
if (m_drawing_button != GUI::MouseButton::None)
|
|
return;
|
|
|
|
m_drawing_button = layer_event.button();
|
|
|
|
m_line_start_position = layer_event.position();
|
|
m_line_end_position = layer_event.position();
|
|
|
|
m_editor->update();
|
|
}
|
|
|
|
void LineTool::on_mouseup(Layer& layer, GUI::MouseEvent& event, GUI::MouseEvent&)
|
|
{
|
|
if (event.button() == m_drawing_button) {
|
|
GUI::Painter painter(layer.bitmap());
|
|
painter.draw_line(m_line_start_position, m_line_end_position, m_editor->color_for(m_drawing_button), m_thickness);
|
|
m_drawing_button = GUI::MouseButton::None;
|
|
layer.did_modify_bitmap();
|
|
m_editor->did_complete_action();
|
|
}
|
|
}
|
|
|
|
void LineTool::on_mousemove(Layer&, GUI::MouseEvent& layer_event, GUI::MouseEvent&)
|
|
{
|
|
if (m_drawing_button == GUI::MouseButton::None)
|
|
return;
|
|
|
|
if (layer_event.shift()) {
|
|
constexpr auto ANGLE_STEP = M_PI / 8;
|
|
m_line_end_position = constrain_line_angle(m_line_start_position, layer_event.position(), ANGLE_STEP);
|
|
} else {
|
|
m_line_end_position = layer_event.position();
|
|
}
|
|
m_editor->update();
|
|
}
|
|
|
|
void LineTool::on_second_paint(Layer const& layer, GUI::PaintEvent& event)
|
|
{
|
|
if (m_drawing_button == GUI::MouseButton::None)
|
|
return;
|
|
|
|
GUI::Painter painter(*m_editor);
|
|
painter.add_clip_rect(event.rect());
|
|
auto preview_start = m_editor->layer_position_to_editor_position(layer, m_line_start_position).to_type<int>();
|
|
auto preview_end = m_editor->layer_position_to_editor_position(layer, m_line_end_position).to_type<int>();
|
|
painter.draw_line(preview_start, preview_end, m_editor->color_for(m_drawing_button), m_thickness);
|
|
}
|
|
|
|
void LineTool::on_keydown(GUI::KeyEvent& event)
|
|
{
|
|
if (event.key() == Key_Escape && m_drawing_button != GUI::MouseButton::None) {
|
|
m_drawing_button = GUI::MouseButton::None;
|
|
m_editor->update();
|
|
event.accept();
|
|
}
|
|
}
|
|
|
|
GUI::Widget* LineTool::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::HorizontalSlider>();
|
|
thickness_slider.set_fixed_height(20);
|
|
thickness_slider.set_range(1, 10);
|
|
thickness_slider.set_value(m_thickness);
|
|
thickness_slider.on_change = [&](int value) {
|
|
m_thickness = value;
|
|
};
|
|
}
|
|
|
|
return m_properties_widget.ptr();
|
|
}
|
|
|
|
}
|