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/* NitroShare - A simple network file sharing tool.
Copyright (C) 2012 Nathan Osman
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 <QApplication>
#include <QBrush>
#include <QColor>
#include <QDesktopWidget>
#include <QDragEnterEvent>
#include <QDragLeaveEvent>
#include <QDropEvent>
#include <QMimeData>
#include <QMouseEvent>
#include <QPainter>
#include <QPaintEvent>
#include <QPen>
#include <QPixmap>
#include <QTimer>
#include <QUrl>
#include <sharebox/CShareBox.h>
#include <util/settings.h>
/* The default dimensions and opacity for the widget. */
const int CShareBox::DefaultHeight = 140;
const int CShareBox::DefaultWidth = 140;
const double CShareBox::DefaultOpacity = 0.7;
CShareBox::CShareBox()
: QWidget(QApplication::desktop()), m_draw_scale(140.0f / 256.0f),
m_highlight(false), m_dragging(false), m_progress(CFileSender::ProgressNone)
{
/* The share box should (ideally) be frameless, transparent, and stick
to the desktop as a widget. This isn't as easy as it sounds, however and
the values below were arrived upon by much trial and error. They seem
to work on all platforms / window managers tested so far. */
setWindowFlags(Qt::FramelessWindowHint | Qt::Tool | Qt::WindowStaysOnBottomHint);
setAttribute(Qt::WA_TranslucentBackground);
setAttribute(Qt::WA_X11NetWmWindowTypeDock);
setAcceptDrops(true);
setWindowTitle("NitroShare Share Box"); /* Ideally this is never seen anywhere. */
Init();
}
void CShareBox::OnProgress(int progress)
{
m_progress = qMin(progress, 100);
/* If the transfer completed or an error occured, then set a timer
after which progress will be reset to ProgressNone. */
if(m_progress < 0)
QTimer::singleShot(3000, this, SLOT(ResetProgress()));
update();
}
void CShareBox::Init()
{
/* Set the window's size and opacity. */
resize(DefaultWidth, DefaultHeight);
setWindowOpacity(DefaultOpacity);
/* Set the colors and fonts. */
m_text_font.setPixelSize(28);
m_text_normal.setRgb(215, 215, 215);
m_text_highlight.setRgb(127, 127, 255);
m_border_highlight.setRgb(127, 127, 215);
/* Create the context menu and show the box. */
CreateContextMenu();
show();
}
void CShareBox::CreateContextMenu()
{
m_context.addAction(tr("Add ShareBox"), this, SIGNAL(AddShareBox()));
m_context.addAction(tr("Remove"), this, SIGNAL(Remove()));
m_context.addSeparator();
m_context.addAction(tr("Quit NitroShare"), QApplication::instance(), SLOT(quit()));
}
void CShareBox::SetHighlight(bool highlight)
{
m_highlight = highlight;
setWindowOpacity(highlight?1.0f:DefaultOpacity);
update();
}
void CShareBox::contextMenuEvent(QContextMenuEvent * event)
{
/* The context menu should be shown where the user right-clicked. */
m_context.popup(event->globalPos());
event->accept();
}
void CShareBox::dragEnterEvent(QDragEnterEvent * event)
{
/* We only accept URLs being dragged on to the box and only if
we are not already involved in transferring a file. */
if(event->mimeData()->hasUrls() && m_progress == CFileSender::ProgressNone)
{
SetHighlight(true);
event->accept();
}
}
void CShareBox::dragLeaveEvent(QDragLeaveEvent * event)
{
SetHighlight(false);
event->accept();
}
void CShareBox::dropEvent(QDropEvent * event)
{
qDebug("Files were dropped on the share box.");
/* Technically we should never receive anything that we don't support because
we rejected everything else above. But once can never be too careful... */
if(event->mimeData()->hasUrls() && m_progress == CFileSender::ProgressNone)
{
/* Convert the list of URLs to filenames. */
QStringList filenames;
foreach(QUrl url, event->mimeData()->urls())
filenames.append(url.toLocalFile());
/* Emit the signal that files were dropped and accept the drop. */
emit FilesDropped(filenames, m_id);
event->accept();
}
else
qDebug("MIME type of dropped content cannot be converted to a URL.");
SetHighlight(false);
}
void CShareBox::mousePressEvent(QMouseEvent * event)
{
/* Only begin dragging the window if the left mouse button is pressed. */
if(event->button() == Qt::LeftButton)
{
m_dragging = true;
m_original_pos = event->pos();
}
}
void CShareBox::mouseMoveEvent(QMouseEvent * event)
{
QPoint dest = event->globalPos() - m_original_pos;
/* Snap the box to a 10 pixel grid. (Making it easier to align boxes
next to each other on the desktop. */
dest /= 10;
dest *= 10;
move(dest);
}
void CShareBox::mouseReleaseEvent(QMouseEvent * event)
{
if(event->button() == Qt::LeftButton)
{
m_dragging = false;
emit Moved();
}
}
void CShareBox::paintEvent(QPaintEvent *)
{
QPainter painter(this);
/* Turn on anti-aliasing and set the scale for drawing operations
so that everything looks good when the widget's size is changed. */
painter.setRenderHint(QPainter::Antialiasing);
painter.setRenderHint(QPainter::SmoothPixmapTransform);
painter.scale(m_draw_scale, m_draw_scale);
/* First draw the background. */
painter.drawPixmap(0, 0, 256, 256, QPixmap(":/images/sharebox.png"));
/* Then draw the blue border if applicable. */
if(m_highlight)
{
painter.setPen(m_border_highlight);
painter.drawRoundedRect(10, 10, 236, 236, 4.0f, 4.0f);
}
painter.setFont(m_text_font);
/* Draw the shadow for the text followed by the actual text. */
QString text = m_id.isEmpty()?tr("[Select Machine]"):m_name;
painter.setPen(Qt::black);
painter.drawText(2, 158, 256, 30, Qt::AlignHCenter | Qt::AlignVCenter, text);
/* Draw the actual text. */
painter.setPen(m_highlight?m_text_highlight:m_text_normal);
painter.drawText(0, 156, 256, 30, Qt::AlignHCenter | Qt::AlignVCenter, text);
/* Draw the progress bar if there is a transfer in progress, otherwise draw either
a checkmark, 'x', or three circles (if nothing is happening). */
if(m_progress >= 0)
{
painter.setBrush(QBrush(QColor(63, 63, 63)));
painter.drawRoundedRect(26, 200, 204, 14, 8.0f, 8.0f);
painter.setPen(Qt::NoPen);
painter.setBrush(QBrush(m_text_normal));
painter.drawRoundedRect(28, 202, 200 * (m_progress / 100.0f), 10, 6.0f, 6.0f);
}
else if(m_progress == CFileSender::ProgressComplete || m_progress == CFileSender::ProgressError)
painter.drawPixmap(112, 200, 32, 32,
QPixmap((m_progress == CFileSender::ProgressComplete)?
":/images/success.png":":/images/error.png"));
else
{
painter.drawEllipse(90, 210, 16, 16);
painter.drawEllipse(120, 210, 16, 16);
painter.drawEllipse(150, 210, 16, 16);
}
/* Lastly draw the icon. */
painter.drawPixmap(80, 16, 96, 96, QPixmap(m_id.isEmpty()?":/images/multiple.png":":/images/single.png"));
}
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