mirror of
https://github.com/RGBCube/serenity
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124 lines
3.8 KiB
C++
124 lines
3.8 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 "ImageEditor.h"
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#include "Image.h"
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#include "Layer.h"
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#include "LayerModel.h"
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#include "Tool.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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if (m_active_layer) {
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painter.draw_rect(m_active_layer->rect().inflated(2, 2), Color::Black);
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}
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}
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static GUI::MouseEvent event_adjusted_for_layer(const GUI::MouseEvent& original_event, const Layer& layer)
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{
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auto position_in_active_layer_coordinates = original_event.position().translated(-layer.location());
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dbg() << "adjusted: " << position_in_active_layer_coordinates;
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return {
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static_cast<GUI::Event::Type>(original_event.type()),
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position_in_active_layer_coordinates, original_event.buttons(),
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original_event.button(),
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original_event.modifiers(),
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original_event.wheel_delta()
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};
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}
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void ImageEditor::mousedown_event(GUI::MouseEvent& event)
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{
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if (!m_active_layer || !m_active_tool)
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return;
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auto layer_event = event_adjusted_for_layer(event, *m_active_layer);
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m_active_tool->on_mousedown(*m_active_layer, layer_event);
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}
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void ImageEditor::mousemove_event(GUI::MouseEvent& event)
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{
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if (!m_active_layer || !m_active_tool)
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return;
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auto layer_event = event_adjusted_for_layer(event, *m_active_layer);
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m_active_tool->on_mousemove(*m_active_layer, layer_event);
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}
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void ImageEditor::mouseup_event(GUI::MouseEvent& event)
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{
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if (!m_active_layer || !m_active_tool)
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return;
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auto layer_event = event_adjusted_for_layer(event, *m_active_layer);
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m_active_tool->on_mouseup(*m_active_layer, layer_event);
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}
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void ImageEditor::set_active_layer(Layer* layer)
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{
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if (m_active_layer == layer)
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return;
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m_active_layer = layer;
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update();
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}
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void ImageEditor::set_active_tool(Tool* tool)
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{
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if (m_active_tool == tool)
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return;
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if (m_active_tool)
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m_active_tool->clear();
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m_active_tool = tool;
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if (m_active_tool)
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m_active_tool->setup(*this);
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}
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}
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