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/***************************************************************************
* Copyright (C) 2009 - 2011 by Artem 'DOOMer' Galichkin *
* doomer3d@gmail.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, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include "screencapture.h"
#include <QDesktopWidget>
#include <QApplication>
ScreenCapture::ScreenCapture(QWidget *parent) :
QDialog(parent)
{
setWindowFlags(Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint );
setWindowState(Qt::WindowFullScreen);
setCursor(Qt::CrossCursor);
sizeDesktop = QApplication::desktop()->size();
resize(sizeDesktop);
desktopPixmapBkg = QPixmap::grabWindow(QApplication::desktop()->winId());
desktopPixmapClr = desktopPixmapBkg;
move(0, 0);
drawBackGround();
}
ScreenCapture::~ScreenCapture()
{
}
bool ScreenCapture::event(QEvent *event)
{
if (event->type() == QEvent::MouseButtonRelease
|| event->type() == QEvent::KeyPress)
{
accept();
}
if (event->type() == QEvent::MouseButtonPress)
{
QMouseEvent *mouseEvent = static_cast<QMouseEvent*> (event);
if (mouseEvent->button() != Qt::LeftButton)
reject();
selStartPoint = mouseEvent->pos();
selectRect = QRect(selStartPoint, QSize());
}
return QDialog::event(event);
}
void ScreenCapture::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event); // suppress unused variable warning
QPainter painter(this);
if (!palBackground)
painter.drawPixmap(QPoint(0, 0), desktopPixmapBkg);
drawRectSelection(painter);
}
void ScreenCapture::mouseMoveEvent(QMouseEvent *event)
{
QMouseEvent *mouseEvent = static_cast<QMouseEvent*> (event);
selectRect = QRect(selStartPoint, mouseEvent->pos()).normalized();
selEndPoint = mouseEvent->pos();
update();
}
void ScreenCapture::drawBackGround()
{
// create painter on pixelmap of desktop
QPainter painter(&desktopPixmapBkg);
// set painter brush on 85% transparency
painter.setBrush(QBrush(QColor(0, 0, 0, 85), Qt::SolidPattern));
// draw rect of desktop size in poainter
painter.drawRect(QApplication::desktop()->rect());
QRect txtRect = QApplication::desktop()->screenGeometry(QApplication::desktop()->primaryScreen());
QString txtTip = QApplication::tr("Use your mouse to draw a rectangle to screenshot or exit pressing\nany key or using the right or middle mouse buttons.");
txtRect.setHeight(qRound(txtRect.height() / 10.f)); // rounded val of text rect height
painter.setPen(QPen(Qt::red)); // ste message rect border color
painter.setBrush(QBrush(QColor(255, 255, 255, 180), Qt::SolidPattern));
QRect txtBgRect = painter.boundingRect(txtRect, Qt::AlignCenter, txtTip);
// set height & width of bkg rect
txtBgRect.setX(txtBgRect.x() - 6);
txtBgRect.setY(txtBgRect.y() - 4);
txtBgRect.setWidth(txtBgRect.width() + 12);
txtBgRect.setHeight(txtBgRect.height() + 8);
painter.drawRect(txtBgRect);
// Draw the text
painter.setPen(QPen(Qt::black)); // black color pen
painter.drawText(txtBgRect, Qt::AlignCenter, txtTip);
palBackground = (qApp->desktop()->numScreens() > 1);
// set bkg to pallette widget
if (palBackground)
{
QPalette newPalette = palette();
newPalette.setBrush(QPalette::Window, QBrush(desktopPixmapBkg));
setPalette(newPalette);
}
}
void ScreenCapture::drawRectSelection(QPainter &painter)
{
painter.drawPixmap(selectRect, desktopPixmapClr, selectRect);
painter.setPen(QPen(QBrush(QColor(0, 0, 0, 255)), 2));
painter.drawRect(selectRect);
QString txtSize = QApplication::tr("%1 x %2 pixels ").arg(selectRect.width()).arg(selectRect.height());
painter.drawText(selectRect, Qt::AlignBottom | Qt::AlignRight, txtSize);
/* This does a zoom box around the selection.
if (!selEndPoint.isNull() ) // && conf->getZoomAroundMouse() == true)
{
const quint8 zoomSide = 200;
// create magnifer coords
QPoint zoomStart = selEndPoint;
zoomStart -= QPoint(zoomSide/5, zoomSide/5); // 40, 40
QPoint zoomEnd = selEndPoint;
zoomEnd += QPoint(zoomSide/5, zoomSide/5);
// creating rect area for magnifer
QRect zoomRect = QRect(zoomStart, zoomEnd);
QPixmap zoomPixmap = desktopPixmapClr.copy(zoomRect).scaled(QSize(zoomSide, zoomSide), Qt::KeepAspectRatio);
QPainter zoomPainer(&zoomPixmap); // create painter from pixmap maignifer
zoomPainer.setPen(QPen(QBrush(QColor(255, 0, 0, 180)), 2));
zoomPainer.drawRect(zoomPixmap.rect()); // draw
zoomPainer.drawText(zoomPixmap.rect().center() - QPoint(4, -4), "+");
// position for drawing preview
QPoint zoomCenter = selectRect.bottomRight();
if (zoomCenter.x() + zoomSide > desktopPixmapClr.rect().width() || zoomCenter.y() + zoomSide > desktopPixmapClr.rect().height())
{
zoomCenter -= QPoint(zoomSide, zoomSide);
}
painter.drawPixmap(zoomCenter, zoomPixmap);
}
*/
}
QPixmap ScreenCapture::getSelection()
{
QPixmap sel;
sel = desktopPixmapClr.copy(selectRect);
return sel;
}
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