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serenity/Userland/Applications/PixelPaint/Layer.h
Tim Ledbetter 3faf089be5 PixelPaint: Add a Duplicate Layer action
The "Duplicate Layer" action inserts a copy of the selected layer into
the layer stack. The new layer is placed above the selected layer.
2023-03-26 00:44:26 +01:00

129 lines
4 KiB
C++

/*
* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
* Copyright (c) 2022, Tobias Christiansen <tobyase@serenityos.org>
* Copyright (c) 2022, Timothy Slater <tslater2006@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/DeprecatedString.h>
#include <AK/Noncopyable.h>
#include <AK/RefCounted.h>
#include <AK/Weakable.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Painter.h>
namespace PixelPaint {
class Image;
class Selection;
class Layer
: public RefCounted<Layer>
, public Weakable<Layer> {
AK_MAKE_NONCOPYABLE(Layer);
AK_MAKE_NONMOVABLE(Layer);
public:
static ErrorOr<NonnullRefPtr<Layer>> create_with_size(Image&, Gfx::IntSize, DeprecatedString name);
static ErrorOr<NonnullRefPtr<Layer>> create_with_bitmap(Image&, NonnullRefPtr<Gfx::Bitmap>, DeprecatedString name);
static ErrorOr<NonnullRefPtr<Layer>> create_snapshot(Image&, Layer const&);
~Layer() = default;
Gfx::IntPoint location() const { return m_location; }
void set_location(Gfx::IntPoint location) { m_location = location; }
Gfx::Bitmap const& display_bitmap() const { return m_cached_display_bitmap; }
Gfx::Bitmap const& content_bitmap() const { return m_content_bitmap; }
Gfx::Bitmap& content_bitmap() { return m_content_bitmap; }
Gfx::Bitmap const* mask_bitmap() const { return m_mask_bitmap; }
Gfx::Bitmap* mask_bitmap() { return m_mask_bitmap; }
ErrorOr<void> create_mask();
void delete_mask();
void apply_mask();
Gfx::Bitmap& get_scratch_edited_bitmap();
Gfx::IntSize size() const { return content_bitmap().size(); }
Gfx::IntRect relative_rect() const { return { location(), size() }; }
Gfx::IntRect rect() const { return { {}, size() }; }
DeprecatedString const& name() const { return m_name; }
void set_name(DeprecatedString);
enum class NotifyClients {
Yes,
No
};
ErrorOr<void> flip(Gfx::Orientation orientation, NotifyClients notify_clients = NotifyClients::Yes);
ErrorOr<void> rotate(Gfx::RotationDirection direction, NotifyClients notify_clients = NotifyClients::Yes);
ErrorOr<void> crop(Gfx::IntRect const& rect, NotifyClients notify_clients = NotifyClients::Yes);
ErrorOr<void> scale(Gfx::IntRect const& new_rect, Gfx::Painter::ScalingMode scaling_mode, NotifyClients notify_clients = NotifyClients::Yes);
Optional<Gfx::IntRect> nonempty_content_bounding_rect() const;
ErrorOr<void> set_bitmaps(NonnullRefPtr<Gfx::Bitmap> content, RefPtr<Gfx::Bitmap> mask);
void did_modify_bitmap(Gfx::IntRect const& = {}, NotifyClients notify_clients = NotifyClients::Yes);
void set_selected(bool selected) { m_selected = selected; }
bool is_selected() const { return m_selected; }
bool is_visible() const { return m_visible; }
void set_visible(bool visible);
int opacity_percent() const { return m_opacity_percent; }
void set_opacity_percent(int);
RefPtr<Gfx::Bitmap> copy_bitmap(Selection const&) const;
Image const& image() const { return m_image; }
void erase_selection(Selection const&);
bool is_masked() const { return !m_mask_bitmap.is_null(); }
enum class EditMode {
Content,
Mask,
};
EditMode edit_mode() { return m_edit_mode; }
void set_edit_mode(EditMode mode);
Gfx::Bitmap& currently_edited_bitmap();
ErrorOr<NonnullRefPtr<Layer>> duplicate(DeprecatedString name);
private:
Layer(Image&, NonnullRefPtr<Gfx::Bitmap>, DeprecatedString name);
Image& m_image;
DeprecatedString m_name;
Gfx::IntPoint m_location;
NonnullRefPtr<Gfx::Bitmap> m_content_bitmap;
RefPtr<Gfx::Bitmap> m_scratch_edited_bitmap { nullptr };
RefPtr<Gfx::Bitmap> m_mask_bitmap { nullptr };
NonnullRefPtr<Gfx::Bitmap> m_cached_display_bitmap;
bool m_selected { false };
bool m_visible { true };
int m_opacity_percent { 100 };
EditMode m_edit_mode { EditMode::Content };
void update_cached_bitmap();
};
}