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https://github.com/RGBCube/serenity
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9c3a33762b
Indexed bitmaps used to allocate four times the required amount of memory. Also, we should acknowledge that the underlying data is not always RGBA32, and instead cast it only when the true type is known.
93 lines
3.1 KiB
C++
93 lines
3.1 KiB
C++
/*
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* Copyright (c) 2018-2020, 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 "BucketTool.h"
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#include "ImageEditor.h"
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#include "Layer.h"
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#include <AK/Queue.h>
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#include <AK/SinglyLinkedList.h>
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#include <LibGUI/Painter.h>
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/Rect.h>
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namespace PixelPaint {
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BucketTool::BucketTool()
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{
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}
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BucketTool::~BucketTool()
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{
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}
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static void flood_fill(Gfx::Bitmap& bitmap, const Gfx::IntPoint& start_position, Color target_color, Color fill_color)
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{
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ASSERT(bitmap.bpp() == 32);
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if (target_color == fill_color)
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return;
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if (!bitmap.rect().contains(start_position))
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return;
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Queue<Gfx::IntPoint> queue;
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queue.enqueue(start_position);
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while (!queue.is_empty()) {
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auto position = queue.dequeue();
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if (bitmap.get_pixel<Gfx::StorageFormat::RGBA32>(position.x(), position.y()) != target_color)
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continue;
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bitmap.set_pixel<Gfx::StorageFormat::RGBA32>(position.x(), position.y(), fill_color);
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if (position.x() != 0)
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queue.enqueue(position.translated(-1, 0));
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if (position.x() != bitmap.width() - 1)
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queue.enqueue(position.translated(1, 0));
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if (position.y() != 0)
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queue.enqueue(position.translated(0, -1));
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if (position.y() != bitmap.height() - 1)
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queue.enqueue(position.translated(0, 1));
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}
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}
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void BucketTool::on_mousedown(Layer& layer, GUI::MouseEvent& event, GUI::MouseEvent&)
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{
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if (!layer.rect().contains(event.position()))
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return;
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GUI::Painter painter(layer.bitmap());
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auto target_color = layer.bitmap().get_pixel(event.x(), event.y());
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flood_fill(layer.bitmap(), event.position(), target_color, m_editor->color_for(event));
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layer.did_modify_bitmap(*m_editor->image());
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}
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}
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