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160bda7228
https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
/*
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* Copyright (c) 2021-2022, 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 "ZoomTool.h"
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#include "../ImageEditor.h"
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/Label.h>
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#include <LibGUI/ValueSlider.h>
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namespace PixelPaint {
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void ZoomTool::on_mousedown(Layer*, MouseEvent& event)
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{
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auto& raw_event = event.raw_event();
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if (raw_event.button() != GUI::MouseButton::Primary && raw_event.button() != GUI::MouseButton::Secondary)
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return;
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auto scale_factor = (raw_event.button() == GUI::MouseButton::Primary) ? m_sensitivity : -m_sensitivity;
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auto new_scale = AK::exp2(scale_factor);
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m_editor->scale_centered(new_scale, raw_event.position());
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}
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GUI::Widget* ZoomTool::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& sensitivity_container = m_properties_widget->add<GUI::Widget>();
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sensitivity_container.set_fixed_height(20);
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sensitivity_container.set_layout<GUI::HorizontalBoxLayout>();
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auto& sensitivity_label = sensitivity_container.add<GUI::Label>("Sensitivity:");
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sensitivity_label.set_text_alignment(Gfx::TextAlignment::CenterLeft);
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sensitivity_label.set_fixed_size(80, 20);
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auto& sensitivity_slider = sensitivity_container.add<GUI::ValueSlider>(Orientation::Horizontal, "%");
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sensitivity_slider.set_range(1, 100);
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sensitivity_slider.set_value(100 * m_sensitivity);
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sensitivity_slider.on_change = [&](int value) {
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m_sensitivity = (double)value / 100.0;
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};
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set_primary_slider(&sensitivity_slider);
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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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