kwin/effects/screenshot/screenshot.h
Martin Gräßlin fe4329a252 Only call active effects in the effect chain
Each effect is able to declare itself as currently being active,
that is transforming windows or painting or screen or doing anything
during the current rendered frame.

This change eliminates the hottest path inside KWin identified by
callgrind.

REVIEW: 102449
2011-08-29 07:06:58 +02:00

86 lines
3.1 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2010 Martin Gräßlin <kde@martin-graesslin.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#ifndef KWIN_SCREENSHOT_H
#define KWIN_SCREENSHOT_H
#include <kwineffects.h>
#include <QObject>
#include <QImage>
namespace KWin
{
class ScreenShotEffect : public Effect
{
Q_OBJECT
Q_CLASSINFO("D-Bus Interface", "org.kde.kwin.Screenshot")
public:
enum ScreenShotType {
INCLUDE_DECORATION = 1 << 0,
INCLUDE_CURSOR = 1 << 1
};
ScreenShotEffect();
virtual ~ScreenShotEffect();
virtual void postPaintScreen();
virtual bool isActive() const;
static bool supported();
static void convertFromGLImage(QImage &img, int w, int h);
public Q_SLOTS:
Q_SCRIPTABLE void screenshotWindowUnderCursor(int mask = 0);
/**
* Saves a screenshot of all screen into a file and returns the path to the file.
* Functionality requires hardware support, if not available a null string is returned.
* @returns Path to stored screenshot, or null string in failure case.
**/
Q_SCRIPTABLE QString screenshotFullscreen();
/**
* Saves a screenshot of the screen identified by @p screen into a file and returns the path to the file.
* Functionality requires hardware support, if not available a null string is returned.
* @param screen Number of screen as numbered by kephal
* @returns Path to stored screenshot, or null string in failure case.
**/
Q_SCRIPTABLE QString screenshotScreen(int screen);
/**
* Saves a screenshot of the selected geometry into a file and returns the path to the file.
* Functionality requires hardware support, if not available a null string is returned.
* @param x Left upper x coord of region
* @param y Left upper y coord of region
* @param width Width of the region to screenshot
* @param height Height of the region to screenshot
* @returns Path to stored screenshot, or null string in failure case.
**/
Q_SCRIPTABLE QString screenshotArea(int x, int y, int width, int height);
Q_SIGNALS:
Q_SCRIPTABLE void screenshotCreated(qulonglong handle);
private:
void grabPointerImage(QImage& snapshot, int offsetx, int offsety);
QString blitScreenshot(const QRect &geometry);
EffectWindow *m_scheduledScreenshot;
ScreenShotType m_type;
QPixmap m_lastScreenshot;
};
} // namespace
#endif // KWIN_SCREENSHOT_H