mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 14:42:44 +00:00
138 lines
4.2 KiB
C++
138 lines
4.2 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "SprayTool.h"
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#include "../ImageEditor.h"
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#include "../Layer.h"
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#include <AK/Math.h>
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#include <AK/Queue.h>
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#include <LibGUI/Action.h>
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/Label.h>
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#include <LibGUI/Menu.h>
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#include <LibGUI/Painter.h>
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#include <LibGUI/ValueSlider.h>
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#include <LibGfx/Bitmap.h>
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namespace PixelPaint {
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SprayTool::SprayTool()
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{
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m_timer = Core::Timer::create_repeating(200, [&]() {
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paint_it();
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}).release_value_but_fixme_should_propagate_errors();
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}
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static double nrand()
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{
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return double(rand()) / double(RAND_MAX);
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}
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void SprayTool::paint_it()
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{
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auto* layer = m_editor->active_layer();
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if (!layer)
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return;
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auto& bitmap = layer->get_scratch_edited_bitmap();
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GUI::Painter painter(bitmap);
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VERIFY(bitmap.bpp() == 32);
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double const minimal_radius = 2;
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double const base_radius = minimal_radius * m_thickness;
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for (int i = 0; i < M_PI * base_radius * base_radius * (m_density / 100.0); i++) {
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double radius = base_radius * nrand();
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double angle = 2 * M_PI * nrand();
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int const xpos = m_last_pos.x() + radius * AK::cos(angle);
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int const ypos = m_last_pos.y() - radius * AK::sin(angle);
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if (xpos < 0 || xpos >= bitmap.width())
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continue;
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if (ypos < 0 || ypos >= bitmap.height())
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continue;
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bitmap.set_pixel<Gfx::StorageFormat::BGRA8888>(xpos, ypos, m_color);
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}
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layer->did_modify_bitmap(Gfx::IntRect::centered_on(m_last_pos, Gfx::IntSize(base_radius * 2, base_radius * 2)));
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}
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void SprayTool::on_mousedown(Layer* layer, MouseEvent& event)
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{
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if (!layer)
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return;
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auto& layer_event = event.layer_event();
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m_color = m_editor->color_for(layer_event);
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m_last_pos = layer_event.position();
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m_timer->start();
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paint_it();
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}
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void SprayTool::on_mousemove(Layer* layer, MouseEvent& event)
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{
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if (!layer)
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return;
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m_last_pos = event.layer_event().position();
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if (m_timer->is_active()) {
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paint_it();
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m_timer->restart(m_timer->interval());
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}
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}
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void SprayTool::on_mouseup(Layer*, MouseEvent&)
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{
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if (m_timer->is_active()) {
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m_timer->stop();
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m_editor->did_complete_action(tool_name());
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}
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}
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ErrorOr<GUI::Widget*> SprayTool::get_properties_widget()
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{
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if (!m_properties_widget) {
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auto properties_widget = TRY(GUI::Widget::try_create());
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(void)TRY(properties_widget->try_set_layout<GUI::VerticalBoxLayout>());
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auto size_container = TRY(properties_widget->try_add<GUI::Widget>());
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size_container->set_fixed_height(20);
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(void)TRY(size_container->try_set_layout<GUI::HorizontalBoxLayout>());
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auto size_label = TRY(size_container->try_add<GUI::Label>("Size:"));
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size_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
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size_label->set_fixed_size(80, 20);
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auto size_slider = TRY(size_container->try_add<GUI::ValueSlider>(Orientation::Horizontal, "px"_short_string));
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size_slider->set_range(1, 20);
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size_slider->set_value(m_thickness);
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size_slider->on_change = [this](int value) {
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m_thickness = value;
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};
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set_primary_slider(size_slider);
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auto density_container = TRY(properties_widget->try_add<GUI::Widget>());
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density_container->set_fixed_height(20);
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(void)TRY(density_container->try_set_layout<GUI::HorizontalBoxLayout>());
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auto density_label = TRY(density_container->try_add<GUI::Label>("Density:"));
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density_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
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density_label->set_fixed_size(80, 20);
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auto density_slider = TRY(density_container->try_add<GUI::ValueSlider>(Orientation::Horizontal, "%"_short_string));
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density_slider->set_range(1, 100);
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density_slider->set_value(m_density);
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density_slider->on_change = [this](int value) {
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m_density = value;
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};
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set_secondary_slider(density_slider);
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m_properties_widget = properties_widget;
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}
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return m_properties_widget.ptr();
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}
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}
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