mirror of
https://github.com/RGBCube/serenity
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134 lines
4.1 KiB
C++
134 lines
4.1 KiB
C++
/*
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* Copyright (c) 2020, Hüseyin Aslıtürk <asliturk@hotmail.com>
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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 <AK/MappedFile.h>
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#include <LibGUI/ImageWidget.h>
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#include <LibGUI/Painter.h>
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/ImageDecoder.h>
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namespace GUI {
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ImageWidget::ImageWidget(const StringView&)
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: m_timer(Core::Timer::construct())
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{
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set_frame_thickness(0);
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set_frame_shadow(Gfx::FrameShadow::Plain);
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set_frame_shape(Gfx::FrameShape::NoFrame);
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set_size_policy(GUI::SizePolicy::Fixed, GUI::SizePolicy::Fixed);
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set_auto_resize(true);
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}
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ImageWidget::~ImageWidget()
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{
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}
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void ImageWidget::set_bitmap(const Gfx::Bitmap* bitmap)
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{
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if (m_bitmap == bitmap)
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return;
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m_bitmap = bitmap;
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if (m_bitmap && m_auto_resize)
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set_preferred_size(m_bitmap->width(), m_bitmap->height());
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update();
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}
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void ImageWidget::set_auto_resize(bool value)
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{
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m_auto_resize = value;
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if (m_bitmap)
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set_preferred_size(m_bitmap->width(), m_bitmap->height());
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}
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void ImageWidget::animate()
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{
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m_current_frame_index = (m_current_frame_index + 1) % m_image_decoder->frame_count();
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const auto& current_frame = m_image_decoder->frame(m_current_frame_index);
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set_bitmap(current_frame.image);
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if (current_frame.duration != m_timer->interval()) {
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m_timer->restart(current_frame.duration);
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}
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if (m_current_frame_index == m_image_decoder->frame_count() - 1) {
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++m_loops_completed;
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if (m_loops_completed > 0 && m_loops_completed == m_image_decoder->loop_count()) {
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m_timer->stop();
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}
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}
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}
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void ImageWidget::load_from_file(const StringView& path)
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{
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MappedFile mapped_file(path);
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if (!mapped_file.is_valid())
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return;
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m_image_decoder = Gfx::ImageDecoder::create((const u8*)mapped_file.data(), mapped_file.size());
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auto bitmap = m_image_decoder->bitmap();
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ASSERT(bitmap);
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set_bitmap(bitmap);
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if (path.ends_with(".gif")) {
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if (m_image_decoder->is_animated() && m_image_decoder->frame_count() > 1) {
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const auto& first_frame = m_image_decoder->frame(0);
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m_timer->set_interval(first_frame.duration);
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m_timer->on_timeout = [this] { animate(); };
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m_timer->start();
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}
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}
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}
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void ImageWidget::mousedown_event(GUI::MouseEvent&)
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{
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if (on_click)
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on_click();
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}
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void ImageWidget::paint_event(PaintEvent& event)
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{
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Frame::paint_event(event);
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if (!m_bitmap) {
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return;
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}
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Painter painter(*this);
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if (m_should_stretch) {
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painter.draw_scaled_bitmap(frame_inner_rect(), *m_bitmap, m_bitmap->rect());
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} else {
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auto location = frame_inner_rect().center().translated(-(m_bitmap->width() / 2), -(m_bitmap->height() / 2));
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painter.blit(location, *m_bitmap, m_bitmap->rect());
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}
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}
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}
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