mirror of
https://github.com/RGBCube/serenity
synced 2025-05-18 19:35:06 +00:00
e63f68661f
This allows the painting subsystem to request a bitmap with the exact size needed for painting, instead of being limited to "just give me a bitmap" (which was perfectly enough for raster images, but not for vector graphics).
78 lines
3 KiB
C++
78 lines
3 KiB
C++
/*
|
|
* Copyright (c) 2018-2023, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibGfx/StylePainter.h>
|
|
#include <LibWeb/HTML/DecodedImageData.h>
|
|
#include <LibWeb/HTML/HTMLImageElement.h>
|
|
#include <LibWeb/HTML/ImageRequest.h>
|
|
#include <LibWeb/Layout/ImageBox.h>
|
|
#include <LibWeb/Painting/BorderRadiusCornerClipper.h>
|
|
#include <LibWeb/Painting/ImagePaintable.h>
|
|
#include <LibWeb/Platform/FontPlugin.h>
|
|
|
|
namespace Web::Painting {
|
|
|
|
JS::NonnullGCPtr<ImagePaintable> ImagePaintable::create(Layout::ImageBox const& layout_box)
|
|
{
|
|
return layout_box.heap().allocate_without_realm<ImagePaintable>(layout_box);
|
|
}
|
|
|
|
ImagePaintable::ImagePaintable(Layout::ImageBox const& layout_box)
|
|
: PaintableBox(layout_box)
|
|
{
|
|
browsing_context().register_viewport_client(*this);
|
|
}
|
|
|
|
void ImagePaintable::finalize()
|
|
{
|
|
Base::finalize();
|
|
|
|
// NOTE: We unregister from the browsing context in finalize() to avoid trouble
|
|
// in the scenario where our BrowsingContext has already been swept by GC.
|
|
browsing_context().unregister_viewport_client(*this);
|
|
}
|
|
|
|
Layout::ImageBox const& ImagePaintable::layout_box() const
|
|
{
|
|
return static_cast<Layout::ImageBox const&>(layout_node());
|
|
}
|
|
|
|
void ImagePaintable::paint(PaintContext& context, PaintPhase phase) const
|
|
{
|
|
if (!is_visible())
|
|
return;
|
|
|
|
// FIXME: This should be done at a different level.
|
|
if (is_out_of_view(context))
|
|
return;
|
|
|
|
PaintableBox::paint(context, phase);
|
|
|
|
if (phase == PaintPhase::Foreground) {
|
|
auto image_rect = context.rounded_device_rect(absolute_rect());
|
|
if (layout_box().renders_as_alt_text()) {
|
|
auto& image_element = verify_cast<HTML::HTMLImageElement>(*dom_node());
|
|
auto enclosing_rect = context.enclosing_device_rect(absolute_rect()).to_type<int>();
|
|
context.painter().set_font(Platform::FontPlugin::the().default_font());
|
|
Gfx::StylePainter::paint_frame(context.painter(), enclosing_rect, context.palette(), Gfx::FrameStyle::SunkenContainer);
|
|
auto alt = image_element.alt();
|
|
if (alt.is_empty())
|
|
alt = image_element.src();
|
|
context.painter().draw_text(enclosing_rect, alt, Gfx::TextAlignment::Center, computed_values().color(), Gfx::TextElision::Right);
|
|
} else if (auto bitmap = layout_box().image_provider().current_image_bitmap(image_rect.size().to_type<int>())) {
|
|
ScopedCornerRadiusClip corner_clip { context, context.painter(), image_rect, normalized_border_radii_data(ShrinkRadiiForBorders::Yes) };
|
|
auto scaling_mode = to_gfx_scaling_mode(computed_values().image_rendering(), bitmap->rect(), image_rect.to_type<int>());
|
|
context.painter().draw_scaled_bitmap(image_rect.to_type<int>(), *bitmap, bitmap->rect(), 1.f, scaling_mode);
|
|
}
|
|
}
|
|
}
|
|
|
|
void ImagePaintable::browsing_context_did_set_viewport_rect(CSSPixelRect const& viewport_rect)
|
|
{
|
|
const_cast<Layout::ImageProvider&>(layout_box().image_provider()).set_visible_in_viewport(viewport_rect.intersects(absolute_rect()));
|
|
}
|
|
|
|
}
|