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Code Issues Activity Actions

PDFViewer: Let users change clipping paths visibility

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Now that the Renderer accepts preferences, PDFViewer can offer ways for
changing these preferences. The first step in this direction is to add a
checkbox that allows toggling whether clipping paths are visible or not.
A Config item has also been added to remember this setting.
This commit is contained in:
Rodrigo Tobar 2022-11-23 21:16:52 +08:00 • committed by Andreas Kling
parent e92ec26771
commit bc7da24fe6
4 changed files with 26 additions and 4 deletions
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15
Userland/Applications/PDFViewer/PDFViewer.cpp
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@ -45,6 +45,7 @@ PDFViewer::PDFViewer()
start_timer(30'000);
m_page_view_mode = static_cast<PageViewMode>(Config::read_i32("PDFViewer"sv, "Display"sv, "PageMode"sv, 0));
m_rendering_preferences.show_clipping_paths = Config::read_bool("PDFViewer"sv, "Rendering"sv, "ShowClippingPaths"sv, false);
}
PDF::PDFErrorOr<void> PDFViewer::set_document(RefPtr<PDF::Document> document)
@ -66,13 +67,14 @@ PDF::PDFErrorOr<void> PDFViewer::set_document(RefPtr<PDF::Document> document)
PDF::PDFErrorOr<NonnullRefPtr<Gfx::Bitmap>> PDFViewer::get_rendered_page(u32 index)
{
auto key = m_zoom_level * (static_cast<int>(m_rendering_preferences.show_clipping_paths) + 1);
auto& rendered_page_map = m_rendered_page_list[index];
auto existing_rendered_page = rendered_page_map.get(m_zoom_level);
auto existing_rendered_page = rendered_page_map.get(key);
if (existing_rendered_page.has_value() && existing_rendered_page.value().rotation == m_rotations)
return existing_rendered_page.value().bitmap;
auto rendered_page = TRY(render_page(index));
rendered_page_map.set(m_zoom_level, { rendered_page, m_rotations });
rendered_page_map.set(key, { rendered_page, m_rotations });
return rendered_page;
}
@ -163,6 +165,13 @@ void PDFViewer::set_current_page(u32 current_page)
update();
}
void PDFViewer::set_show_clipping_paths(bool show_clipping_paths)
{
m_rendering_preferences.show_clipping_paths = show_clipping_paths;
Config::write_bool("PDFViewer"sv, "Rendering"sv, "ShowClippingPaths"sv, show_clipping_paths);
update();
}
void PDFViewer::resize_event(GUI::ResizeEvent&)
{
for (auto& map : m_rendered_page_list)
@ -301,7 +310,7 @@ PDF::PDFErrorOr<NonnullRefPtr<Gfx::Bitmap>> PDFViewer::render_page(u32 page_inde
auto& page_size = m_page_dimension_cache.render_info[page_index].size;
auto bitmap = TRY(Gfx::Bitmap::try_create(Gfx::BitmapFormat::BGRA8888, page_size.to_type<int>()));
TRY(PDF::Renderer::render(*m_document, page, bitmap));
TRY(PDF::Renderer::render(*m_document, page, bitmap, m_rendering_preferences));
if (page.rotate + m_rotations != 0) {
int rotation_count = ((page.rotate + m_rotations) / 90) % 4;