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- /*
- * Copyright (c) 2020, Hüseyin Aslıtürk <asliturk@hotmail.com>
- * Copyright (c) 2022, the SerenityOS developers.
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- #include <LibCore/MappedFile.h>
- #include <LibCore/MimeData.h>
- #include <LibGUI/ImageWidget.h>
- #include <LibGUI/Painter.h>
- #include <LibGfx/Bitmap.h>
- #include <LibGfx/ImageFormats/ImageDecoder.h>
- REGISTER_WIDGET(GUI, ImageWidget)
- namespace GUI {
- ImageWidget::ImageWidget(StringView)
- : m_timer(Core::Timer::try_create().release_value_but_fixme_should_propagate_errors())
- {
- set_frame_style(Gfx::FrameStyle::NoFrame);
- set_auto_resize(true);
- REGISTER_BOOL_PROPERTY("auto_resize", auto_resize, set_auto_resize);
- REGISTER_BOOL_PROPERTY("should_stretch", should_stretch, set_should_stretch);
- REGISTER_WRITE_ONLY_STRING_PROPERTY("bitmap", load_from_file);
- }
- void ImageWidget::set_bitmap(Gfx::Bitmap const* bitmap)
- {
- if (m_bitmap == bitmap)
- return;
- m_bitmap = bitmap;
- if (m_bitmap && m_auto_resize)
- set_fixed_size(m_bitmap->size());
- update();
- }
- void ImageWidget::set_auto_resize(bool value)
- {
- if (m_auto_resize == value)
- return;
- m_auto_resize = value;
- if (m_bitmap && m_auto_resize)
- set_fixed_size(m_bitmap->size());
- }
- // Same as ImageViewer::ViewWidget::animate(), you probably want to keep any changes in sync
- void ImageWidget::animate()
- {
- auto first_animated_frame_index = m_image_decoder->first_animated_frame_index();
- auto total_animated_frames = m_image_decoder->frame_count() - first_animated_frame_index;
- m_current_frame_index = (m_current_frame_index + 1) % total_animated_frames;
- auto current_frame = m_image_decoder->frame(first_animated_frame_index + m_current_frame_index).release_value_but_fixme_should_propagate_errors();
- set_bitmap(current_frame.image);
- if (current_frame.duration != m_timer->interval()) {
- m_timer->restart(current_frame.duration);
- }
- if (m_current_frame_index == total_animated_frames - 1) {
- ++m_loops_completed;
- if (m_image_decoder->loop_count() > 0 && m_loops_completed == m_image_decoder->loop_count()) {
- m_timer->stop();
- }
- }
- }
- void ImageWidget::load_from_file(StringView path)
- {
- auto file_or_error = Core::MappedFile::map(path);
- if (file_or_error.is_error())
- return;
- auto& mapped_file = *file_or_error.value();
- auto mime_type = Core::guess_mime_type_based_on_filename(path);
- m_image_decoder = Gfx::ImageDecoder::try_create_for_raw_bytes(mapped_file.bytes(), mime_type);
- VERIFY(m_image_decoder);
- auto frame = m_image_decoder->frame(0).release_value_but_fixme_should_propagate_errors();
- auto bitmap = frame.image;
- VERIFY(bitmap);
- set_bitmap(bitmap);
- if (m_image_decoder->is_animated() && m_image_decoder->frame_count() > 1) {
- auto first_frame = m_image_decoder->frame(0).release_value_but_fixme_should_propagate_errors();
- m_timer->set_interval(first_frame.duration);
- m_timer->on_timeout = [this] { animate(); };
- m_timer->start();
- }
- }
- void ImageWidget::mousedown_event(GUI::MouseEvent&)
- {
- if (on_click)
- on_click();
- }
- void ImageWidget::paint_event(PaintEvent& event)
- {
- Frame::paint_event(event);
- if (!m_bitmap) {
- return;
- }
- Painter painter(*this);
- painter.add_clip_rect(event.rect());
- if (m_should_stretch) {
- painter.draw_scaled_bitmap(frame_inner_rect(), *m_bitmap, m_bitmap->rect(), (float)opacity_percent() / 100.0f);
- } else {
- auto location = frame_inner_rect().center().translated(-(m_bitmap->width() / 2), -(m_bitmap->height() / 2));
- painter.blit(location, *m_bitmap, m_bitmap->rect(), (float)opacity_percent() / 100.0f);
- }
- }
- void ImageWidget::set_opacity_percent(int percent)
- {
- if (m_opacity_percent == percent)
- return;
- m_opacity_percent = percent;
- update();
- }
- }
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