1e912fb5a1
This fixes a bug where the application would crash if the user changed the default values for opacity or visibility of a layer and then tried to draw on it.
115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "Layer.h"
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#include "Image.h"
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#include <LibGfx/Bitmap.h>
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namespace PixelPaint {
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RefPtr<Layer> Layer::create_with_size(Image& image, const Gfx::IntSize& size, const 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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return adopt(*new Layer(image, size, name));
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}
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RefPtr<Layer> Layer::create_with_bitmap(Image& image, const Gfx::Bitmap& bitmap, const 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(*new Layer(image, bitmap, name));
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}
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RefPtr<Layer> Layer::create_snapshot(Image& image, const Layer& layer)
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{
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auto snapshot = 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, const Gfx::IntSize& size, const String& name)
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: m_image(image)
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, m_name(name)
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{
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m_bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRA8888, size);
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}
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Layer::Layer(Image& image, const Gfx::Bitmap& bitmap, const String& name)
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: m_image(image)
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, m_name(name)
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, m_bitmap(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(const 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 = name;
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m_image.layer_did_modify_properties({}, *this);
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}
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}
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