57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/*
|
|
SPDX-FileCopyrightText: 2022 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
|
|
|
|
SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "scene/cursordelegate_qpainter.h"
|
|
#include "compositor.h"
|
|
#include "core/output.h"
|
|
#include "core/renderlayer.h"
|
|
#include "core/rendertarget.h"
|
|
#include "core/renderviewport.h"
|
|
#include "cursor.h"
|
|
#include "scene/cursorscene.h"
|
|
|
|
#include <QPainter>
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
CursorDelegateQPainter::CursorDelegateQPainter(Scene *scene, Output *output)
|
|
: SceneDelegate(scene, nullptr)
|
|
, m_output(output)
|
|
{
|
|
}
|
|
|
|
void CursorDelegateQPainter::paint(const RenderTarget &renderTarget, const QRegion ®ion)
|
|
{
|
|
if (!region.intersects(layer()->mapToGlobal(layer()->rect()).toAlignedRect())) {
|
|
return;
|
|
}
|
|
|
|
QImage *buffer = renderTarget.image();
|
|
if (Q_UNLIKELY(!buffer)) {
|
|
return;
|
|
}
|
|
|
|
const QSize bufferSize = (Cursors::self()->currentCursor()->rect().size() * m_output->scale()).toSize();
|
|
if (m_buffer.size() != bufferSize) {
|
|
m_buffer = QImage(bufferSize, QImage::Format_ARGB32_Premultiplied);
|
|
}
|
|
|
|
RenderTarget offscreenRenderTarget(&m_buffer);
|
|
|
|
RenderLayer renderLayer(layer()->loop());
|
|
renderLayer.setDelegate(std::make_unique<SceneDelegate>(Compositor::self()->cursorScene(), m_output));
|
|
renderLayer.delegate()->prePaint();
|
|
renderLayer.delegate()->paint(offscreenRenderTarget, infiniteRegion());
|
|
renderLayer.delegate()->postPaint();
|
|
|
|
QPainter painter(buffer);
|
|
painter.setClipRegion(region);
|
|
painter.drawImage(layer()->mapToGlobal(layer()->rect()), m_buffer);
|
|
}
|
|
|
|
} // namespace KWin
|