mirror of
https://github.com/RGBCube/serenity
synced 2025-05-31 20:18:12 +00:00
765286f691
You can now select a part of a layer, copy it, and then paste it as a new layer. Very cool :^)
100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
/*
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* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "Layer.h"
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#include "Image.h"
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#include "Selection.h"
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#include <LibGfx/Bitmap.h>
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namespace PixelPaint {
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RefPtr<Layer> Layer::try_create_with_size(Image& image, Gfx::IntSize const& size, String name)
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{
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if (size.is_empty())
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return nullptr;
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if (size.width() > 16384 || size.height() > 16384)
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return nullptr;
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auto bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRA8888, size);
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if (!bitmap)
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return nullptr;
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return adopt_ref(*new Layer(image, *bitmap, move(name)));
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}
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RefPtr<Layer> Layer::try_create_with_bitmap(Image& image, NonnullRefPtr<Gfx::Bitmap> bitmap, String name)
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{
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if (bitmap->size().is_empty())
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return nullptr;
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if (bitmap->size().width() > 16384 || bitmap->size().height() > 16384)
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return nullptr;
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return adopt_ref(*new Layer(image, bitmap, move(name)));
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}
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RefPtr<Layer> Layer::try_create_snapshot(Image& image, Layer const& layer)
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{
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auto snapshot = try_create_with_bitmap(image, *layer.bitmap().clone(), layer.name());
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/*
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We set these properties directly because calling the setters might
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notify the image of an update on the newly created layer, but this
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layer has not yet been added to the image.
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*/
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snapshot->m_opacity_percent = layer.opacity_percent();
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snapshot->m_visible = layer.is_visible();
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snapshot->set_selected(layer.is_selected());
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snapshot->set_location(layer.location());
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return snapshot;
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}
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Layer::Layer(Image& image, NonnullRefPtr<Gfx::Bitmap> bitmap, String name)
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: m_image(image)
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, m_name(move(name))
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, m_bitmap(move(bitmap))
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{
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}
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void Layer::did_modify_bitmap(Image& image)
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{
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image.layer_did_modify_bitmap({}, *this);
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}
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void Layer::set_visible(bool visible)
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{
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if (m_visible == visible)
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return;
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m_visible = visible;
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m_image.layer_did_modify_properties({}, *this);
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}
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void Layer::set_opacity_percent(int opacity_percent)
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{
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if (m_opacity_percent == opacity_percent)
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return;
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m_opacity_percent = opacity_percent;
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m_image.layer_did_modify_properties({}, *this);
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}
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void Layer::set_name(String name)
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{
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if (m_name == name)
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return;
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m_name = move(name);
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m_image.layer_did_modify_properties({}, *this);
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}
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RefPtr<Gfx::Bitmap> Layer::try_copy_bitmap(Selection const& selection) const
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{
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auto bounding_rect = selection.bounding_rect().translated(-m_location);
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// FIXME: This needs to be smarter once we add more complex selections.
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return m_bitmap->cropped(bounding_rect);
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}
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}
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