RetroArch/ui/drivers/qt/filedropwidget.cpp

#include <QDragEnterEvent>
#include <QDropEvent>
#include <QKeyEvent>
#include <QPaintEvent>
#include <QStyle>
#include <QStyleOption>
#include <QMimeData>
#include <QPainter>
#include "filedropwidget.h"

FileDropWidget::FileDropWidget(QWidget *parent) :
   QWidget(parent)
{
   setAcceptDrops(true);
}

void FileDropWidget::paintEvent(QPaintEvent *event)
{
   QStyleOption o;
   QPainter p;
   o.initFrom(this);
   p.begin(this);
   style()->drawPrimitive(
      QStyle::PE_Widget, &o, &p, this);
   p.end();

   QWidget::paintEvent(event);
}

void FileDropWidget::keyPressEvent(QKeyEvent *event)
{
   if (event->key() == Qt::Key_Delete)
   {
      event->accept();
      emit deletePressed();
   }
   else
      QWidget::keyPressEvent(event);
}

void FileDropWidget::dragEnterEvent(QDragEnterEvent *event)
{
   const QMimeData *data = event->mimeData();

   if (data->hasUrls())
      event->acceptProposedAction();
}

void FileDropWidget::dropEvent(QDropEvent *event)
{
   const QMimeData *data = event->mimeData();

   if (data->hasUrls())
   {
      QList<QUrl> urls = data->urls();
      QStringList files;
      int i;

      for (i = 0; i < urls.count(); i++)
      {
         QString path(urls.at(i).toLocalFile());

         files.append(path);
      }

      emit filesDropped(files);
   }
}