kwin/plugins/scenes/qpainter/scene_qpainter.h

196 lines
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C++

/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2013 Martin Gräßlin <mgraesslin@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef KWIN_SCENE_QPAINTER_H
#define KWIN_SCENE_QPAINTER_H
#include "scene.h"
#include <platformsupport/scenes/qpainter/qpainterbackend.h>
#include "shadow.h"
#include "decorations/decorationrenderer.h"
namespace KWin {
class KWIN_EXPORT SceneQPainter : public Scene
{
Q_OBJECT
public:
~SceneQPainter() override;
bool usesOverlayWindow() const override;
OverlayWindow* overlayWindow() const override;
void paint(int screenId, const QRegion &damage, const QList<Toplevel *> &windows,
std::chrono::milliseconds presentTime) override;
void paintGenericScreen(int mask, const ScreenPaintData &data) override;
CompositingType compositingType() const override;
bool initFailed() const override;
EffectFrame *createEffectFrame(EffectFrameImpl *frame) override;
Shadow *createShadow(Toplevel *toplevel) override;
Decoration::Renderer *createDecorationRenderer(Decoration::DecoratedClientImpl *impl) override;
void screenGeometryChanged(const QSize &size) override;
bool animationsSupported() const override {
return false;
}
QPainter *scenePainter() const override;
QImage *qpainterRenderBuffer(int screenId) const override;
QPainterBackend *backend() const {
return m_backend.data();
}
static SceneQPainter *createScene(QObject *parent);
protected:
void paintBackground(const QRegion &region) override;
Scene::Window *createWindow(Toplevel *toplevel) override;
void paintCursor(const QRegion &region) override;
void paintEffectQuickView(EffectQuickView *w) override;
private:
explicit SceneQPainter(QPainterBackend *backend, QObject *parent = nullptr);
QScopedPointer<QPainterBackend> m_backend;
QScopedPointer<QPainter> m_painter;
class Window;
};
class QPainterWindowPixmap : public WindowPixmap
{
public:
explicit QPainterWindowPixmap(Scene::Window *window);
~QPainterWindowPixmap() override;
void create() override;
void update() override;
bool isValid() const override;
const QImage &image();
protected:
WindowPixmap *createChild(KWaylandServer::SubSurfaceInterface *subSurface) override;
private:
explicit QPainterWindowPixmap(KWaylandServer::SubSurfaceInterface *subSurface, WindowPixmap *parent);
QImage m_image;
};
class SceneQPainter::Window : public Scene::Window
{
Q_OBJECT
public:
Window(SceneQPainter *scene, Toplevel *c);
~Window() override;
void performPaint(int mask, const QRegion &region, const WindowPaintData &data) override;
protected:
WindowPixmap *createWindowPixmap() override;
private:
void renderWindowPixmap(QPainter *painter, QPainterWindowPixmap *windowPixmap);
void renderShadow(QPainter *painter);
void renderWindowDecorations(QPainter *painter);
SceneQPainter *m_scene;
};
class QPainterEffectFrame : public Scene::EffectFrame
{
public:
QPainterEffectFrame(EffectFrameImpl *frame, SceneQPainter *scene);
~QPainterEffectFrame() override;
void crossFadeIcon() override {}
void crossFadeText() override {}
void free() override {}
void freeIconFrame() override {}
void freeTextFrame() override {}
void freeSelection() override {}
void render(const QRegion &region, double opacity, double frameOpacity) override;
private:
SceneQPainter *m_scene;
};
class SceneQPainterShadow : public Shadow
{
public:
SceneQPainterShadow(Toplevel* toplevel);
~SceneQPainterShadow() override;
QImage &shadowTexture() {
return m_texture;
}
protected:
void buildQuads() override;
bool prepareBackend() override;
private:
QImage m_texture;
};
class SceneQPainterDecorationRenderer : public Decoration::Renderer
{
Q_OBJECT
public:
enum class DecorationPart : int {
Left,
Top,
Right,
Bottom,
Count
};
explicit SceneQPainterDecorationRenderer(Decoration::DecoratedClientImpl *client);
~SceneQPainterDecorationRenderer() override;
void render() override;
void reparent(Deleted *deleted) override;
QImage image(DecorationPart part) const;
private:
void resizeImages();
QImage m_images[int(DecorationPart::Count)];
};
class KWIN_EXPORT QPainterFactory : public SceneFactory
{
Q_OBJECT
Q_INTERFACES(KWin::SceneFactory)
Q_PLUGIN_METADATA(IID "org.kde.kwin.Scene" FILE "qpainter.json")
public:
explicit QPainterFactory(QObject *parent = nullptr);
~QPainterFactory() override;
Scene *create(QObject *parent = nullptr) const override;
};
inline
bool SceneQPainter::usesOverlayWindow() const
{
return false;
}
inline
OverlayWindow* SceneQPainter::overlayWindow() const
{
return nullptr;
}
inline
QPainter* SceneQPainter::scenePainter() const
{
return m_painter.data();
}
inline
const QImage &QPainterWindowPixmap::image()
{
return m_image;
}
} // KWin
#endif // KWIN_SCENEQPAINTER_H