2837550cbb
This was missing from what is available in KWin core. The brightness and saturation are implemented using a custom shader which uses the same logic as what we use in the scene shader.
108 lines
3.3 KiB
C++
108 lines
3.3 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2011, 2014 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#ifndef KWIN_THUMBNAILITEM_H
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#define KWIN_THUMBNAILITEM_H
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#include <QImage>
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#include <QQuickItem>
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#include <QSGTextureMaterial>
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namespace KWin
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{
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class BrightnessSaturationShader : public QSGMaterialShader
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{
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public:
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BrightnessSaturationShader();
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virtual const char* vertexShader() const override;
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virtual const char* fragmentShader() const override;
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virtual const char*const* attributeNames() const override;
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virtual void updateState(const RenderState& state, QSGMaterial* newMaterial, QSGMaterial* oldMaterial) override;
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virtual void initialize() override;
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private:
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int m_id_matrix;
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int m_id_opacity;
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int m_id_saturation;
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int m_id_brightness;
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};
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class BrightnessSaturationMaterial : public QSGTextureMaterial
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{
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public:
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virtual QSGMaterialShader* createShader() const override {
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return new BrightnessSaturationShader;
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}
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QSGMaterialType *type() const override {
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static QSGMaterialType type;
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return &type;
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}
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qreal brightness;
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qreal saturation;
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};
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class WindowThumbnailItem : public QQuickItem
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{
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Q_OBJECT
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Q_PROPERTY(qulonglong wId READ wId WRITE setWId NOTIFY wIdChanged SCRIPTABLE true)
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Q_PROPERTY(QQuickItem *clipTo READ clipTo WRITE setClipTo NOTIFY clipToChanged)
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Q_PROPERTY(qreal brightness READ brightness WRITE setBrightness NOTIFY brightnessChanged)
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Q_PROPERTY(qreal saturation READ saturation WRITE setSaturation NOTIFY saturationChanged)
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public:
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explicit WindowThumbnailItem(QQuickItem *parent = nullptr);
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virtual ~WindowThumbnailItem();
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qulonglong wId() const {
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return m_wId;
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}
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QQuickItem *clipTo() const {
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return m_clipToItem;
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}
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qreal brightness() const;
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qreal saturation() const;
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void setWId(qulonglong wId);
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void setClipTo(QQuickItem *clip);
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void setBrightness(qreal brightness);
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void setSaturation(qreal saturation);
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virtual QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *updatePaintNodeData) override;
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enum Thumbnail {
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Konqueror = 1,
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KMail,
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Systemsettings,
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Dolphin
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};
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Q_SIGNALS:
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void wIdChanged(qulonglong wid);
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void clipToChanged();
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void brightnessChanged();
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void saturationChanged();
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private:
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void findImage();
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qulonglong m_wId;
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QImage m_image;
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QQuickItem *m_clipToItem;
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qreal m_brightness;
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qreal m_saturation;
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};
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} // KWin
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#endif // KWIN_THUMBNAILITEM_H
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