mirror of
https://github.com/RGBCube/serenity
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854e16797e
This tightens the update rects for EraseTool, BrushTool And the marching ants update in Selection. Inflate Selection update rect by 10x10 to avoid misalignment when zoomed out.
109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "EraseTool.h"
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#include "ImageEditor.h"
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#include "Layer.h"
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#include <LibGUI/Action.h>
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/CheckBox.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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EraseTool::EraseTool()
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{
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}
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EraseTool::~EraseTool()
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{
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}
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Gfx::IntRect EraseTool::build_rect(Gfx::IntPoint const& pos, Gfx::IntRect const& widget_rect)
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{
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const int eraser_size = m_thickness;
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const int eraser_radius = eraser_size / 2;
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const auto ex = pos.x();
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const auto ey = pos.y();
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return Gfx::IntRect(ex - eraser_radius, ey - eraser_radius, eraser_size, eraser_size).intersected(widget_rect);
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}
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void EraseTool::on_mousedown(Layer& layer, GUI::MouseEvent& event, GUI::MouseEvent&)
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{
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if (event.button() != GUI::MouseButton::Left && event.button() != GUI::MouseButton::Right)
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return;
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Gfx::IntRect r = build_rect(event.position(), layer.rect());
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GUI::Painter painter(layer.bitmap());
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painter.clear_rect(r, get_color());
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layer.did_modify_bitmap(r.inflated(2, 2));
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}
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void EraseTool::on_mousemove(Layer& layer, GUI::MouseEvent& event, GUI::MouseEvent&)
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{
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if (event.buttons() & GUI::MouseButton::Left || event.buttons() & GUI::MouseButton::Right) {
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Gfx::IntRect r = build_rect(event.position(), layer.rect());
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GUI::Painter painter(layer.bitmap());
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painter.clear_rect(r, get_color());
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layer.did_modify_bitmap(r.inflated(2, 2));
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}
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}
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void EraseTool::on_mouseup(Layer&, GUI::MouseEvent& event, GUI::MouseEvent&)
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{
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if (event.button() != GUI::MouseButton::Left && event.button() != GUI::MouseButton::Right)
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return;
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m_editor->did_complete_action();
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}
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Color EraseTool::get_color() const
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{
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if (m_use_secondary_color)
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return m_editor->secondary_color();
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return Color(255, 255, 255, 0);
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}
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GUI::Widget* EraseTool::get_properties_widget()
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{
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if (!m_properties_widget) {
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m_properties_widget = GUI::Widget::construct();
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m_properties_widget->set_layout<GUI::VerticalBoxLayout>();
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auto& thickness_container = m_properties_widget->add<GUI::Widget>();
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thickness_container.set_fixed_height(20);
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thickness_container.set_layout<GUI::HorizontalBoxLayout>();
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auto& thickness_label = thickness_container.add<GUI::Label>("Size:");
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thickness_label.set_text_alignment(Gfx::TextAlignment::CenterLeft);
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thickness_label.set_fixed_size(80, 20);
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auto& thickness_slider = thickness_container.add<GUI::ValueSlider>(Orientation::Horizontal, "px");
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thickness_slider.set_range(1, 50);
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thickness_slider.set_value(m_thickness);
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thickness_slider.on_change = [&](int value) {
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m_thickness = value;
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};
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auto& checkbox_container = m_properties_widget->add<GUI::Widget>();
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checkbox_container.set_fixed_height(20);
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checkbox_container.set_layout<GUI::HorizontalBoxLayout>();
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auto& use_secondary_color_checkbox = checkbox_container.add<GUI::CheckBox>();
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use_secondary_color_checkbox.set_checked(m_use_secondary_color);
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use_secondary_color_checkbox.set_text("Use secondary color");
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use_secondary_color_checkbox.on_checked = [&](bool checked) {
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m_use_secondary_color = checked;
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};
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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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