mirror of
https://github.com/RGBCube/serenity
synced 2025-07-26 02:57:36 +00:00
PaintBrush: Start refactoring to support layer-based images
The main editing widget is now the new ImageEditor widget, which works on an Image object, which internally has a stack of Layer objects. Layers are composited back-to-front when painting the Image inside an ImageEditor.
This commit is contained in:
parent
a87f5e4154
commit
985c2550c1
8 changed files with 389 additions and 10 deletions
66
Applications/PaintBrush/Image.cpp
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66
Applications/PaintBrush/Image.cpp
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@ -0,0 +1,66 @@
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/*
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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 "Image.h"
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#include "Layer.h"
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#include <LibGUI/Painter.h>
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namespace PaintBrush {
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RefPtr<Image> Image::create_with_size(const Gfx::Size& size)
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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 Image(size));
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}
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Image::Image(const Gfx::Size& size)
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: m_size(size)
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{
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}
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void Image::paint_into(GUI::Painter& painter, const Gfx::Rect& dest_rect, const Gfx::Rect& src_rect)
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{
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for (auto& layer : m_layers) {
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auto target = dest_rect.translated(layer.location());
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dbg() << "Composite layer " << layer.name() << " target: " << target << ", src_rect: " << src_rect;
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painter.draw_scaled_bitmap(target, layer.bitmap(), src_rect);
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}
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}
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void Image::add_layer(NonnullRefPtr<Layer> layer)
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{
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for (auto& existing_layer : m_layers) {
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ASSERT(&existing_layer != layer.ptr());
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}
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m_layers.append(move(layer));
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}
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}
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62
Applications/PaintBrush/Image.h
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62
Applications/PaintBrush/Image.h
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@ -0,0 +1,62 @@
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/*
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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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#pragma once
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#include <AK/NonnullRefPtrVector.h>
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#include <AK/RefCounted.h>
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#include <AK/Vector.h>
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#include <LibGUI/Forward.h>
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#include <LibGfx/Forward.h>
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#include <LibGfx/Rect.h>
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#include <LibGfx/Size.h>
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namespace PaintBrush {
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class Layer;
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class Image : public RefCounted<Image> {
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public:
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static RefPtr<Image> create_with_size(const Gfx::Size&);
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size_t layer_count() const { return m_layers.size(); }
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const Layer& layer(size_t index) const { return m_layers.at(index); }
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const Gfx::Size& size() const { return m_size; }
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Gfx::Rect rect() const { return { {}, m_size }; }
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void add_layer(NonnullRefPtr<Layer>);
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void paint_into(GUI::Painter&, const Gfx::Rect& dest_rect, const Gfx::Rect& src_rect);
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private:
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explicit Image(const Gfx::Size&);
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Gfx::Size m_size;
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NonnullRefPtrVector<Layer> m_layers;
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};
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}
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59
Applications/PaintBrush/ImageEditor.cpp
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59
Applications/PaintBrush/ImageEditor.cpp
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@ -0,0 +1,59 @@
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/*
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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 "ImageEditor.h"
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#include "Image.h"
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#include "Layer.h"
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#include <LibGUI/Painter.h>
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#include <LibGfx/Palette.h>
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namespace PaintBrush {
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ImageEditor::ImageEditor()
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{
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}
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void ImageEditor::set_image(RefPtr<Image> image)
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{
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m_image = move(image);
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update();
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}
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void ImageEditor::paint_event(GUI::PaintEvent& event)
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{
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GUI::Frame::paint_event(event);
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GUI::Painter painter(*this);
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painter.add_clip_rect(event.rect());
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painter.fill_rect_with_checkerboard(rect(), { 8, 8 }, palette().base().darkened(0.9), palette().base());
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if (m_image) {
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m_image->paint_into(painter, m_image->rect(), m_image->rect());
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}
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}
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}
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52
Applications/PaintBrush/ImageEditor.h
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52
Applications/PaintBrush/ImageEditor.h
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@ -0,0 +1,52 @@
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/*
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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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#pragma once
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#include <LibGUI/Frame.h>
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namespace PaintBrush {
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class Image;
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class ImageEditor final : public GUI::Frame {
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C_OBJECT(ImageEditor);
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public:
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const Image* image() const { return m_image; }
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Image* image() { return m_image; }
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void set_image(RefPtr<Image>);
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private:
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ImageEditor();
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virtual void paint_event(GUI::PaintEvent&) override;
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RefPtr<Image> m_image;
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};
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}
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49
Applications/PaintBrush/Layer.cpp
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49
Applications/PaintBrush/Layer.cpp
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@ -0,0 +1,49 @@
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/*
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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 <LibGfx/Bitmap.h>
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namespace PaintBrush {
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RefPtr<Layer> Layer::create_with_size(const Gfx::Size& 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(size, name));
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}
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Layer::Layer(const Gfx::Size& size, const String& name)
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: m_name(name)
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{
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m_bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::RGBA32, size);
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}
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}
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63
Applications/PaintBrush/Layer.h
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63
Applications/PaintBrush/Layer.h
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/*
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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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#pragma once
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#include <AK/Noncopyable.h>
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#include <AK/RefCounted.h>
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#include <AK/String.h>
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#include <LibGfx/Bitmap.h>
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namespace PaintBrush {
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class Layer : public RefCounted<Layer> {
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AK_MAKE_NONCOPYABLE(Layer);
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AK_MAKE_NONMOVABLE(Layer);
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public:
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static RefPtr<Layer> create_with_size(const Gfx::Size&, const String& name);
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~Layer() {}
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const Gfx::Point& location() const { return m_location; }
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void set_location(const Gfx::Point& location) { m_location = location; }
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const Gfx::Bitmap& bitmap() const { return *m_bitmap; }
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Gfx::Bitmap& bitmap() { return *m_bitmap; }
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Gfx::Size size() const { return bitmap().size(); }
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const String& name() const { return m_name; }
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void set_name(const String& name) { m_name = name; }
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private:
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explicit Layer(const Gfx::Size&, const String& name);
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String m_name;
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Gfx::Point m_location;
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RefPtr<Gfx::Bitmap> m_bitmap;
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};
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}
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@ -1,16 +1,19 @@
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OBJS = \
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PaintableWidget.o \
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PaletteWidget.o \
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ToolboxWidget.o \
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Tool.o \
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PenTool.o \
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LineTool.o \
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RectangleTool.o \
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BucketTool.o \
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EllipseTool.o \
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EraseTool.o \
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BucketTool.o \
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SprayTool.o \
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Image.o \
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ImageEditor.o \
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Layer.o \
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LineTool.o \
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PaintableWidget.o \
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PaletteWidget.o \
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PenTool.o \
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PickerTool.o \
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RectangleTool.o \
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SprayTool.o \
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Tool.o \
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ToolboxWidget.o \
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main.o
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PROGRAM = PaintBrush
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@ -24,6 +24,9 @@
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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 "Image.h"
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#include "ImageEditor.h"
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#include "Layer.h"
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#include "PaintableWidget.h"
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#include "PaletteWidget.h"
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#include "ToolboxWidget.h"
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@ -68,8 +71,12 @@ int main(int argc, char** argv)
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vertical_container.set_layout<GUI::VerticalBoxLayout>();
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vertical_container.layout()->set_spacing(0);
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auto& image_editor = vertical_container.add<PaintBrush::ImageEditor>();
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image_editor.set_focus(true);
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auto& paintable_widget = vertical_container.add<PaintableWidget>();
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paintable_widget.set_focus(true);
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paintable_widget.set_size_policy(GUI::SizePolicy::Fixed, GUI::SizePolicy::Fixed);
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paintable_widget.set_preferred_size(0, 0);
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vertical_container.add<PaletteWidget>(paintable_widget);
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window->show();
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@ -105,5 +112,23 @@ int main(int argc, char** argv)
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app.set_menubar(move(menubar));
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auto image = PaintBrush::Image::create_with_size({ 640, 480 });
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auto bg_layer = PaintBrush::Layer::create_with_size({ 640, 480 }, "Background");
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image->add_layer(*bg_layer);
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bg_layer->bitmap().fill(Color::Magenta);
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auto fg_layer_1 = PaintBrush::Layer::create_with_size({ 200, 100 }, "Foreground 1");
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image->add_layer(*fg_layer_1);
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fg_layer_1->set_location({ 20, 10 });
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fg_layer_1->bitmap().fill(Color::Green);
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auto fg_layer_2 = PaintBrush::Layer::create_with_size({ 64, 64 }, "Foreground 2");
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image->add_layer(*fg_layer_2);
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fg_layer_2->set_location({ 300, 350 });
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fg_layer_2->bitmap().fill(Color::Yellow);
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image_editor.set_image(image);
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return app.exec();
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}
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