mirror of
https://github.com/RGBCube/serenity
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8eb01c0b11
Currently, ImageViewer always uses nearest neighbor scaling. This allows the user to choose whether to use nearest neighbor or bilinear scaling. It current defaults to nearest neighbor.
94 lines
2.9 KiB
C++
94 lines
2.9 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
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* Copyright (c) 2021, Mohsan Ali <mohsan0073@gmail.com>
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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 <LibCore/Timer.h>
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#include <LibGUI/Frame.h>
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#include <LibGUI/Painter.h>
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#include <LibGfx/Point.h>
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#include <LibImageDecoderClient/Client.h>
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namespace ImageViewer {
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class ViewWidget final : public GUI::Frame {
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C_OBJECT(ViewWidget)
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public:
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enum Directions {
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First,
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Back,
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Forward,
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Last
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};
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virtual ~ViewWidget() override;
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const Gfx::Bitmap* bitmap() const { return m_bitmap.ptr(); }
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const String& path() const { return m_path; }
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void set_scale(float);
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float scale() { return m_scale; }
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void set_toolbar_height(int height) { m_toolbar_height = height; }
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int toolbar_height() { return m_toolbar_height; }
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bool scaled_for_first_image() { return m_scaled_for_first_image; }
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void set_scaled_for_first_image(bool val) { m_scaled_for_first_image = val; }
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void set_path(const String& path);
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void resize_window();
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void set_scaling_mode(Gfx::Painter::ScalingMode);
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bool is_next_available() const;
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bool is_previous_available() const;
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void clear();
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void flip(Gfx::Orientation);
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void rotate(Gfx::RotationDirection);
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void navigate(Directions);
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void load_from_file(const String&);
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Function<void(float)> on_scale_change;
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Function<void()> on_doubleclick;
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Function<void(const GUI::DropEvent&)> on_drop;
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Function<void(const Gfx::Bitmap*)> on_image_change;
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private:
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ViewWidget();
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virtual void doubleclick_event(GUI::MouseEvent&) override;
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virtual void paint_event(GUI::PaintEvent&) override;
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virtual void resize_event(GUI::ResizeEvent&) override;
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virtual void mousedown_event(GUI::MouseEvent&) override;
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virtual void mouseup_event(GUI::MouseEvent&) override;
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virtual void mousemove_event(GUI::MouseEvent&) override;
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virtual void mousewheel_event(GUI::MouseEvent&) override;
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virtual void drop_event(GUI::DropEvent&) override;
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void set_bitmap(const Gfx::Bitmap* bitmap);
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void relayout();
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void reset_view();
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void animate();
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Vector<String> load_files_from_directory(const String& path) const;
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String m_path;
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RefPtr<Gfx::Bitmap> m_bitmap;
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Gfx::IntRect m_bitmap_rect;
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Optional<ImageDecoderClient::DecodedImage> m_decoded_image;
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size_t m_current_frame_index { 0 };
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size_t m_loops_completed { 0 };
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NonnullRefPtr<Core::Timer> m_timer;
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float m_scale { -1 };
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int m_toolbar_height { 28 };
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bool m_scaled_for_first_image { false };
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Gfx::FloatPoint m_pan_origin;
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Gfx::IntPoint m_click_position;
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Gfx::FloatPoint m_saved_pan_origin;
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Vector<String> m_files_in_same_dir;
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Optional<size_t> m_current_index;
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Gfx::Painter::ScalingMode m_scaling_mode { Gfx::Painter::ScalingMode::NearestNeighbor };
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};
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}
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