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/*
Actionaz
Copyright (C) 2008-2014 Jonathan Mercier-Ganady
Actionaz 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 3 of the License, or
(at your option) any later version.
Actionaz 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/>.
Contact : jmgr@jmgr.info
*/
#include "screenshooter.h"
#include "windowhandle.h"
#include <QDesktopWidget>
#include <QApplication>
#include <QImage>
#include <QPainter>
#include <limits>
namespace ActionTools
{
QPixmap ScreenShooter::captureScreen(int screenIndex)
{
QDesktopWidget *desktop = QApplication::desktop();
if(screenIndex < 0 || screenIndex >= desktop->screenCount())
return QPixmap();
const QRect &screenGeometry = desktop->screenGeometry(screenIndex);
return QPixmap::grabWindow(desktop->winId(), screenGeometry.x(), screenGeometry.y(), screenGeometry.width(), screenGeometry.height());
}
QList< QPair<QPixmap, QRect> > ScreenShooter::captureScreens()
{
QDesktopWidget *desktop = QApplication::desktop();
QList< QPair<QPixmap, QRect> > result;
for(int screenIndex = 0; screenIndex < desktop->screenCount(); ++screenIndex)
{
const QRect &screenGeometry = desktop->screenGeometry(screenIndex);
result.append(qMakePair(QPixmap::grabWindow(desktop->winId(), screenGeometry.x(), screenGeometry.y(), screenGeometry.width(), screenGeometry.height()), screenGeometry));
}
return result;
}
QList<QPair<QPixmap, QRect> > ScreenShooter::captureWindows(const QList<WindowHandle> &windows)
{
QDesktopWidget *desktop = QApplication::desktop();
QList< QPair<QPixmap, QRect> > result;
foreach(const WindowHandle &window, windows)
{
if(!window.isValid())
continue;
const QRect &windowGeometry = window.rect();
result.append(qMakePair(QPixmap::grabWindow(desktop->winId(), windowGeometry.x(), windowGeometry.y(), windowGeometry.width(), windowGeometry.height()), windowGeometry));
}
return result;
}
QPixmap ScreenShooter::captureWindow(WindowHandle window)
{
QDesktopWidget *desktop = QApplication::desktop();
if(!window.isValid())
return QPixmap();
const QRect &windowGeometry = window.rect();
return QPixmap::grabWindow(desktop->winId(), windowGeometry.x(), windowGeometry.y(), windowGeometry.width(), windowGeometry.height());
}
QPixmap ScreenShooter::captureAllScreens()
{
const QList< QPair<QPixmap, QRect> > &screens = captureScreens();
QRect resultRect;
QPoint minimalTopLeft(std::numeric_limits<int>::max(), std::numeric_limits<int>::max());
typedef QPair<QPixmap, QRect> PixmapRectPair;
foreach(const PixmapRectPair &screen, screens)
{
const QRect &screenRect = screen.second;
resultRect = resultRect.united(screenRect);
if(minimalTopLeft.x() > screenRect.x())
minimalTopLeft.setX(screenRect.x());
if(minimalTopLeft.y() > screenRect.y())
minimalTopLeft.setY(screenRect.y());
}
QImage result(resultRect.width(), resultRect.height(), QImage::Format_RGB32);
result.fill(Qt::black);
{
QPainter painter(&result);
foreach(const PixmapRectPair &screen, screens)
{
const QRect &screenRect = screen.second;
painter.drawPixmap(screenRect.x() - minimalTopLeft.x(), screenRect.y() - minimalTopLeft.y(), screen.first);
}
}
return QPixmap::fromImage(result);
}
QPixmap ScreenShooter::captureRect(const QRect &rect)
{
QDesktopWidget *desktop = QApplication::desktop();
return QPixmap::grabWindow(desktop->winId(), rect.x(), rect.y(), rect.width(), rect.height());
}
}
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