2cc55e4077
Summary: The effect exports itself to DBus as object "/ColorPicker" and provides an own interface "org.kde.kwin.ColorPicker". It has one exported method to DBus "pick" which returns a QColor. When invoked an interactive position picking selection is started. If it ends the effect reads the color value at the picked position from the OpenGL color buffer. This implements T4568. Reviewers: #kwin, #plasma_on_wayland, broulik Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D3480
66 lines
1.8 KiB
C++
66 lines
1.8 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) 2016 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_COLORPICKER_H
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#define KWIN_COLORPICKER_H
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#include <kwineffects.h>
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#include <QDBusContext>
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#include <QDBusMessage>
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#include <QDBusUnixFileDescriptor>
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#include <QObject>
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#include <QColor>
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namespace KWin
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{
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class ColorPickerEffect : public Effect, protected QDBusContext
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{
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Q_OBJECT
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Q_CLASSINFO("D-Bus Interface", "org.kde.kwin.ColorPicker")
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public:
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ColorPickerEffect();
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virtual ~ColorPickerEffect();
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void paintScreen(int mask, QRegion region, ScreenPaintData &data) override;
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void postPaintScreen() override;
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bool isActive() const override;
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int requestedEffectChainPosition() const override {
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return 50;
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}
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static bool supported();
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public Q_SLOTS:
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Q_SCRIPTABLE QColor pick();
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private:
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void showInfoMessage();
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void hideInfoMessage();
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QDBusMessage m_replyMessage;
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QRect m_cachedOutputGeometry;
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QPoint m_scheduledPosition;
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bool m_picking = false;
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QScopedPointer<EffectFrame> m_infoFrame;
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};
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} // namespace
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#endif
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