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163 lines
3.6 KiB
163 lines
3.6 KiB
/*
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* Copyright (C) 2015-2016 Département de l'Instruction Publique (DIP-SEM)
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*
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* Copyright (C) 2013 Open Education Foundation
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*
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* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
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* l'Education Numérique en Afrique (GIP ENA)
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*
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* This file is part of OpenBoard.
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*
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* OpenBoard 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, version 3 of the License,
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* with a specific linking exception for the OpenSSL project's
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* "OpenSSL" library (or with modified versions of it that use the
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* same license as the "OpenSSL" library).
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*
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* OpenBoard 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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*
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* You should have received a copy of the GNU General Public License
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* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <QApplication>
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#include <QDesktopWidget>
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#include <QStyle>
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#include "UBCustomCaptureWindow.h"
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#include "frameworks/UBPlatformUtils.h"
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#include "gui/UBRubberBand.h"
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#include "core/memcheck.h"
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UBCustomCaptureWindow::UBCustomCaptureWindow(QWidget *parent)
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: QDialog(parent, Qt::FramelessWindowHint | Qt::Window)
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, mSelectionBand(0)
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, mRubberBandStyle(0)
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, mOrigin(0,0)
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, mIsSelecting(false)
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{
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setCursor(Qt::CrossCursor);
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setWindowOpacity(0.0);
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}
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UBCustomCaptureWindow::~UBCustomCaptureWindow()
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{
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delete mSelectionBand;
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delete mRubberBandStyle;
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}
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QPixmap UBCustomCaptureWindow::getSelectedPixmap()
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{
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if (mSelectionBand)
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{
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return mWholeScreenPixmap.copy(mSelectionBand->geometry());
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}
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else
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{
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return QPixmap();
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}
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}
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int UBCustomCaptureWindow::execute(const QPixmap &pScreenPixmap)
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{
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mWholeScreenPixmap = pScreenPixmap;
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QDesktopWidget *desktop = QApplication::desktop();
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int currentScreen = desktop->screenNumber(QCursor::pos());
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setGeometry(desktop->screenGeometry(currentScreen));
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this->show();
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setWindowOpacity(1.0);
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return exec();
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}
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void UBCustomCaptureWindow::mouseMoveEvent ( QMouseEvent * event )
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{
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if (mIsSelecting)
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{
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mSelectionBand->setGeometry(QRect(mOrigin, event->pos()).normalized());
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}
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event->accept();
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}
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void UBCustomCaptureWindow::mousePressEvent ( QMouseEvent * event )
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{
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if (!mIsSelecting)
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{
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mIsSelecting = true;
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mOrigin = event->pos();
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if (!mSelectionBand)
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{
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mSelectionBand = new UBRubberBand(QRubberBand::Rectangle, this);
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}
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mSelectionBand->setGeometry(QRect(mOrigin, QSize()));
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mSelectionBand->show();
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event->accept();
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}
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}
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void UBCustomCaptureWindow::mouseReleaseEvent ( QMouseEvent * event )
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{
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mIsSelecting = false;
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if (mSelectionBand)
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{
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mSelectionBand->hide();
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}
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event->accept();
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// do not accept very small selection
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if (!(mSelectionBand->geometry().width() < 6 && mSelectionBand->geometry().height() < 6))
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{
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accept();
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}
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}
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void UBCustomCaptureWindow::keyPressEvent ( QKeyEvent * event )
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{
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if (event->key() == Qt::Key_Escape)
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{
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mIsSelecting = false;
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if (mSelectionBand)
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{
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mSelectionBand->hide();
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}
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event->accept();
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reject();
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}
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}
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void UBCustomCaptureWindow::showEvent ( QShowEvent * event )
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{
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Q_UNUSED(event);
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}
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void UBCustomCaptureWindow::paintEvent(QPaintEvent *event)
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{
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Q_UNUSED(event);
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QPainter painter(this);
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painter.drawPixmap(0,0, mWholeScreenPixmap);
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}
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