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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."
45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
/*
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* Copyright (c) 2021, Valtteri Koskivuori <vkoskiv@gmail.com>
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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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#pragma once
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#include <AK/CircularQueue.h>
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#include <LibGUI/Frame.h>
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#include <LibGfx/Filters/ColorBlindnessFilter.h>
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class MagnifierWidget final : public GUI::Frame {
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C_OBJECT(MagnifierWidget);
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public:
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virtual ~MagnifierWidget() override = default;
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void set_scale_factor(int scale_factor);
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void set_color_filter(OwnPtr<Gfx::ColorBlindnessFilter>);
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void pause_capture(bool pause)
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{
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m_pause_capture = pause;
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if (!pause)
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m_frame_offset_from_head = 0;
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}
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void display_previous_frame();
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void display_next_frame();
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private:
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MagnifierWidget();
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virtual void paint_event(GUI::PaintEvent&) override;
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virtual void second_paint_event(GUI::PaintEvent&) override;
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void sync();
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int m_scale_factor { 2 };
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OwnPtr<Gfx::ColorBlindnessFilter> m_color_filter;
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RefPtr<Gfx::Bitmap> m_grabbed_bitmap;
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CircularQueue<RefPtr<Gfx::Bitmap>, 512> m_grabbed_bitmaps {};
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ssize_t m_frame_offset_from_head { 0 };
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bool m_pause_capture { false };
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};
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