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			54 lines
		
	
	
	
		
			1.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			54 lines
		
	
	
	
		
			1.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2021-2023, 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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| 
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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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| 
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| namespace PixelPaint {
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| 
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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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| 
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|     auto scale_factor = (raw_event.button() == GUI::MouseButton::Primary) ? m_sensitivity : -m_sensitivity;
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|     auto new_scale = m_editor->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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| 
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| ErrorOr<GUI::Widget*> ZoomTool::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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| 
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|         auto sensitivity_container = TRY(properties_widget->try_add<GUI::Widget>());
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|         sensitivity_container->set_fixed_height(20);
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|         (void)TRY(sensitivity_container->try_set_layout<GUI::HorizontalBoxLayout>());
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| 
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|         auto sensitivity_label = TRY(sensitivity_container->try_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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| 
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|         auto sensitivity_slider = TRY(sensitivity_container->try_add<GUI::ValueSlider>(Orientation::Horizontal, "%"_short_string));
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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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| 
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|         sensitivity_slider->on_change = [this](int value) {
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|             m_sensitivity = value / 100.0f;
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|         };
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|         set_primary_slider(sensitivity_slider);
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|         m_properties_widget = properties_widget;
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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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| }
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