mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-12-26 20:55:35 +03:00
1837e94ba4
Rather than render the icons to a 16x16 bitmap, keep them as vector graphics and render them on request. This keeps the icons crisp on high DPI displays.
80 lines
2.9 KiB
C++
80 lines
2.9 KiB
C++
/*
|
|
* Copyright (c) 2023, MacDue <macdue@dueutil.tech>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/MemoryStream.h>
|
|
#include <AK/String.h>
|
|
#include <LibGfx/Painter.h>
|
|
#include <QFile>
|
|
#include <QImage>
|
|
#include <QPainter>
|
|
#include <QPixmapCache>
|
|
|
|
#include "TVGIconEngine.h"
|
|
#include "Utilities.h"
|
|
|
|
void TVGIconEngine::paint(QPainter* qpainter, QRect const& rect, QIcon::Mode mode, QIcon::State state)
|
|
{
|
|
qpainter->drawPixmap(rect, pixmap(rect.size(), mode, state));
|
|
}
|
|
|
|
QIconEngine* TVGIconEngine::clone() const
|
|
{
|
|
return new TVGIconEngine(*this);
|
|
}
|
|
|
|
QPixmap TVGIconEngine::pixmap(QSize const& size, QIcon::Mode mode, QIcon::State state)
|
|
{
|
|
QPixmap pixmap;
|
|
auto key = pixmap_cache_key(size, mode, state);
|
|
if (QPixmapCache::find(key, &pixmap))
|
|
return pixmap;
|
|
auto bitmap = MUST(Gfx::Bitmap::create(Gfx::BitmapFormat::BGRA8888, { size.width(), size.height() }));
|
|
Gfx::Painter painter { *bitmap };
|
|
auto icon_rect = m_image_data->rect().to_type<float>();
|
|
auto scale = min(size.width() / icon_rect.width(), size.height() / icon_rect.height()) * m_scale;
|
|
auto centered = Gfx::FloatRect { {}, icon_rect.size().scaled_by(scale) }
|
|
.centered_within(Gfx::FloatRect { {}, { size.width(), size.height() } });
|
|
auto transform = Gfx::AffineTransform {}
|
|
.translate(centered.location())
|
|
.multiply(Gfx::AffineTransform {}.scale(scale, scale));
|
|
m_image_data->draw_transformed(painter, transform);
|
|
for (auto const& filter : m_filters) {
|
|
if (filter->mode() == mode) {
|
|
painter.blit_filtered({}, *bitmap, bitmap->rect(), filter->function(), false);
|
|
break;
|
|
}
|
|
}
|
|
QImage qimage { bitmap->scanline_u8(0), bitmap->width(), bitmap->height(), QImage::Format::Format_ARGB32 };
|
|
pixmap = QPixmap::fromImage(qimage);
|
|
if (!pixmap.isNull())
|
|
QPixmapCache::insert(key, pixmap);
|
|
return pixmap;
|
|
}
|
|
|
|
QString TVGIconEngine::pixmap_cache_key(QSize const& size, QIcon::Mode mode, QIcon::State state)
|
|
{
|
|
return qstring_from_ak_string(
|
|
MUST(String::formatted("$sernity_tvgicon_{}_{}x{}_{}_{}", m_cache_id, size.width(), size.height(), to_underlying(mode), to_underlying(state))));
|
|
}
|
|
|
|
void TVGIconEngine::add_filter(QIcon::Mode mode, Function<Color(Color)> filter)
|
|
{
|
|
m_filters.empend(adopt_ref(*new Filter(mode, move(filter))));
|
|
invalidate_cache();
|
|
}
|
|
|
|
TVGIconEngine* TVGIconEngine::from_file(QString const& path)
|
|
{
|
|
QFile icon_resource(path);
|
|
if (!icon_resource.open(QIODeviceBase::ReadOnly))
|
|
return nullptr;
|
|
auto icon_data = icon_resource.readAll();
|
|
FixedMemoryStream icon_bytes { ReadonlyBytes { icon_data.data(), static_cast<size_t>(icon_data.size()) } };
|
|
if (auto tvg = Gfx::TinyVGDecodedImageData::decode(icon_bytes); !tvg.is_error())
|
|
return new TVGIconEngine(tvg.release_value());
|
|
return nullptr;
|
|
}
|