e9b25f176a
Summary: For windows the screenshot effect already delayed the rendering into the next cycle. But for the fullscreen variants which save to a file the Screenshot effect did try to take the shot directly. This can be problematic as e.g. the OpenGL context might not be bound at all. Also this makes it impossible to screenshot multiple screens together in the Wayland case. This change delays the DBus replies, schedules the geometry and takes the screenshot in the next rendering pass. It does not fix the multiscreen wayland problem yet. Reviewers: #kwin Subscribers: kwin Tags: #kwin Differential Revision: https://phabricator.kde.org/D3052
99 lines
3.5 KiB
C++
99 lines
3.5 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) 2010 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_SCREENSHOT_H
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#define KWIN_SCREENSHOT_H
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#include <kwineffects.h>
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#include <QDBusContext>
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#include <QDBusConnection>
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#include <QDBusMessage>
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#include <QObject>
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#include <QImage>
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namespace KWin
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{
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class ScreenShotEffect : 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.Screenshot")
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public:
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enum ScreenShotType {
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INCLUDE_DECORATION = 1 << 0,
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INCLUDE_CURSOR = 1 << 1
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};
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ScreenShotEffect();
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virtual ~ScreenShotEffect();
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virtual void postPaintScreen();
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virtual bool isActive() const;
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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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static void convertFromGLImage(QImage &img, int w, int h);
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public Q_SLOTS:
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Q_SCRIPTABLE void screenshotForWindow(qulonglong winid, int mask = 0);
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Q_SCRIPTABLE void screenshotWindowUnderCursor(int mask = 0);
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/**
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* Saves a screenshot of all screen into a file and returns the path to the file.
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* Functionality requires hardware support, if not available a null string is returned.
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* @returns Path to stored screenshot, or null string in failure case.
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**/
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Q_SCRIPTABLE QString screenshotFullscreen();
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/**
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* Saves a screenshot of the screen identified by @p screen into a file and returns the path to the file.
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* Functionality requires hardware support, if not available a null string is returned.
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* @param screen Number of screen as numbered by QDesktopWidget
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* @returns Path to stored screenshot, or null string in failure case.
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**/
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Q_SCRIPTABLE QString screenshotScreen(int screen);
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/**
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* Saves a screenshot of the selected geometry into a file and returns the path to the file.
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* Functionality requires hardware support, if not available a null string is returned.
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* @param x Left upper x coord of region
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* @param y Left upper y coord of region
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* @param width Width of the region to screenshot
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* @param height Height of the region to screenshot
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* @returns Path to stored screenshot, or null string in failure case.
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**/
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Q_SCRIPTABLE QString screenshotArea(int x, int y, int width, int height);
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Q_SIGNALS:
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Q_SCRIPTABLE void screenshotCreated(qulonglong handle);
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private Q_SLOTS:
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void windowClosed( KWin::EffectWindow* w );
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private:
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void grabPointerImage(QImage& snapshot, int offsetx, int offsety);
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QString blitScreenshot(const QRect &geometry);
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EffectWindow *m_scheduledScreenshot;
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ScreenShotType m_type;
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QRect m_scheduledGeometry;
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QDBusConnection m_replyConnection;
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QDBusMessage m_replyMessage;
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};
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} // namespace
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#endif // KWIN_SCREENSHOT_H
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