ZoomTool.cpp 1.8 KB

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  1. /*
  2. * Copyright (c) 2021-2023, the SerenityOS developers.
  3. *
  4. * SPDX-License-Identifier: BSD-2-Clause
  5. */
  6. #include "ZoomTool.h"
  7. #include "../ImageEditor.h"
  8. #include <LibGUI/BoxLayout.h>
  9. #include <LibGUI/Label.h>
  10. #include <LibGUI/ValueSlider.h>
  11. namespace PixelPaint {
  12. void ZoomTool::on_mousedown(Layer*, MouseEvent& event)
  13. {
  14. auto& raw_event = event.raw_event();
  15. if (raw_event.button() != GUI::MouseButton::Primary && raw_event.button() != GUI::MouseButton::Secondary)
  16. return;
  17. auto scale_factor = (raw_event.button() == GUI::MouseButton::Primary) ? m_sensitivity : -m_sensitivity;
  18. auto new_scale = m_editor->scale() * AK::exp2(scale_factor);
  19. m_editor->scale_centered(new_scale, raw_event.position());
  20. }
  21. NonnullRefPtr<GUI::Widget> ZoomTool::get_properties_widget()
  22. {
  23. if (!m_properties_widget) {
  24. auto properties_widget = GUI::Widget::construct();
  25. properties_widget->set_layout<GUI::VerticalBoxLayout>();
  26. auto& sensitivity_container = properties_widget->add<GUI::Widget>();
  27. sensitivity_container.set_fixed_height(20);
  28. sensitivity_container.set_layout<GUI::HorizontalBoxLayout>();
  29. auto& sensitivity_label = sensitivity_container.add<GUI::Label>("Sensitivity:"_string);
  30. sensitivity_label.set_text_alignment(Gfx::TextAlignment::CenterLeft);
  31. sensitivity_label.set_fixed_size(80, 20);
  32. auto& sensitivity_slider = sensitivity_container.add<GUI::ValueSlider>(Orientation::Horizontal, "%"_string);
  33. sensitivity_slider.set_range(1, 100);
  34. sensitivity_slider.set_value(100 * m_sensitivity);
  35. sensitivity_slider.on_change = [this](int value) {
  36. m_sensitivity = value / 100.0f;
  37. };
  38. set_primary_slider(&sensitivity_slider);
  39. m_properties_widget = properties_widget;
  40. }
  41. return *m_properties_widget;
  42. }
  43. }