VidePub Code

/*
   Copyright (C) 2011 Arnaud Champenois arthelion92@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 3 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/>.
*/

#include "drawingarea.h"
#include <QPainter>
#include <QMouseEvent>

DrawingArea::DrawingArea(MainWindow *parent) :
    QWidget(parent)
{
mRubberPt = NULL;
mMainWindow = parent;
mInLogo = false;
}

DrawingArea::~DrawingArea()
{
    delete mRubberPt;
}

void DrawingArea::mousePressEvent ( QMouseEvent * event )
{
    if(event->button() != Qt::LeftButton)
        return;
    if(mImage.isNull()) return;
    mInLogo  = true;
    mOrigin = event->pos();
    if (!mRubberPt)
        mRubberPt = new QRubberBand(QRubberBand::Rectangle, this);
    mRubberPt->setGeometry(QRect(mOrigin, QSize()));
    mRubberPt->show();
}

void DrawingArea::mouseReleaseEvent ( QMouseEvent * event )
{
    if(mImage.isNull()) return;

    mInLogo  = false;
    QRect anImageRect = mImage.rect();
    mLogoArea = anImageRect.intersect(QRect(mOrigin, event->pos()).normalized());
    mRubberPt->hide();
    repaint();

    if(mLogoArea.isValid() && mLogoArea.width()>3 && mLogoArea.height()>3)
        mMainWindow->SetLogo(mLogoArea,mImage.copy(mLogoArea));
}

void DrawingArea::mouseMoveEvent ( QMouseEvent * event )
{
    if(mImage.isNull()) return;

    QRect anImageRect = mImage.rect();
    anImageRect = anImageRect.intersect(QRect(mOrigin, event->pos()).normalized());
    mRubberPt->setGeometry(anImageRect);
}

void DrawingArea::paintEvent(QPaintEvent* event)
{
  QPainter p(this);
  p.drawImage(0,0,mImage);
  if(mMainWindow->HasLogo())
    {
      p.setPen(QColor(255,0,0));
      p.setBrush(QColor(255,0,0,50));
      p.drawRect(mLogoArea);
    }
  else if(!mMainWindow->IsClosed() && !mInLogo)
  {
      p.setFont(QFont("Times",14,10,false));
      p.setPen(QColor(255,0,0));
      p.drawText(QRect(0,0,800,60),tr("Drag mouse pressing left button\nto select channel logo"));
  }
  else if(mMainWindow->IsClosed())
  {
      p.setFont(QFont("Times",18,10,false));
      p.setPen(QColor(255,0,0));
      p.drawText(QRect(0,0,800,30),tr("Drop an mpeg ts video here"));
  }
}

void DrawingArea::SetImage(const QImage&anImage)
{
    mImage = anImage;
    repaint();
}