// Called by the DataStream when new data is available.
public void UpdateData(AppSpecificationDescriptor description)
{
// if the existing description is not null, make it null
if (null != _description)
{
_description = null;
}
// set the description to this new value
_description = description;
// Now make sure that the current selectionX/Y are valid for this page.
ChannelBox current = _description.Nearest(_selectionX, _selectionY);
if (current != null)
{
_selectionX = current.Column;
_selectionY = current.Row;
}
// we got data from the receiver. Make ourselves visible
if (!_overlaySurface.Visible)
{
_overlaySurface.Visible = true;
}
UpdateDisplayAndAudio();
}
// Called after UI _description available
private void Render()
{
AspectRatios ar = FromSize(_overlaySurface.RenderingMode.PlayerViewportSize.Width, _overlaySurface.RenderingMode.PlayerViewportSize.Height);
if (ar == AspectRatios.AspectRatio_16x10)
{
_videoSurface.ZoomMode = ZoomMode.Stretched;
}
else
{
_videoSurface.ZoomMode = ZoomMode.Normal;
}
Microsoft.MediaCenter.UI.Point startPoint = new Microsoft.MediaCenter.UI.Point(0, 0);
Bitmap image = new Bitmap(1200, 800, PixelFormat.Format32bppArgb);
using (Graphics dc = Graphics.FromImage(image))
{
ChannelBox current = _description.Lookup(_selectionX, _selectionY);
if (current == null)
{
return;
}
int index = 0;
foreach (InfoTextFormat icb in _description.InfoTexts)
{
SolidBrush brush = new SolidBrush(System.Drawing.Color.FromName(icb.infoColor));
Font font = new Font(icb.infoFont, icb.infoFontSize);
dc.DrawString(current._infoText[index], font, brush, icb.left, icb.top);
index++;
}
// Draw the lines around the chosen cell.
SolidBrush brushText = new SolidBrush(System.Drawing.Color.FromName(_description.InfoTexts[0].infoColor));
Pen pen = new System.Drawing.Pen(brushText, 6);
dc.DrawLine(pen, current.Left, current.Top, current.Left + _description.CellWidth, current.Top);
dc.DrawLine(pen, current.Left, current.Top, current.Left, current.Top + _description.CellHeight);
dc.DrawLine(pen, current.Left, current.Top + _description.CellHeight, current.Left + _description.CellWidth, current.Top + _description.CellHeight);
dc.DrawLine(pen, current.Left + _description.CellWidth, current.Top, current.Left + _description.CellWidth, current.Top + _description.CellHeight);
}
_overlaySurface.BeginRegionUpdates();
_overlaySurface.UpdateRegion(startPoint, image);
_overlaySurface.EndRegionUpdates();
}
// Get the channel box which is closes to the location detailed in the [arameters.
public ChannelBox Nearest(int column, int row)
{
ChannelBox bestBox = _channelBoxes[0];
foreach (ChannelBox channelBox in _channelBoxes)
{
int x1 = Math.Abs(bestBox.Column - column);
int y1 = Math.Abs(bestBox.Row - row);
int x2 = Math.Abs(channelBox.Column - column);
int y2 = Math.Abs(channelBox.Row - row);
if ((x2 < x1 && y2 <= y1) || (x2 <= x1 && y2 < y1))
{
bestBox = channelBox;
}
}
return(bestBox);
}
// Receive data for each Mosaic Cell.
public void ReceiveCellData(int iRowIndex, int iColIndex, int iAudioPid, int iLeft, int iTop, string tuneString, string programInfo1, string programInfo2, string programInfo3)
{
// if we have all the info we need, just ignore.
if ((null != _description) && (_description.Channels.Count != _iNumberOfCells))
{
// create a channel box and populate the data
ChannelBox box = new ChannelBox(iRowIndex, iColIndex, iAudioPid, iLeft, iTop, (string)tuneString);
box.AddInfoText(programInfo1);
box.AddInfoText(programInfo2);
box.AddInfoText(programInfo3);
// add this to _description
_description.Channels.Add(box);
// we have all our data, so set the UI.
if (_description.Channels.Count == _iNumberOfCells)
{
_userInterface.UpdateData(_description);
}
}
}
// Return the Audio PID for this channel box
public int GetAudioPid(ChannelBox channelBox)
{
return(channelBox.AudioPID);
}
// Moving to a different cell results only in the audio stream switch. Pressing Enter/Ok causes the tune to happen.
public void ProcessKeyboardEvent(KeyCommandEventArgs args)
{
try
{
switch (args.Key)
{
// Move Left
case Microsoft.MediaCenter.TVVM.KeyHandlerKey.Left:
if (_selectionX > 0)
{
_selectionX--;
}
break;
// Move Right
case Microsoft.MediaCenter.TVVM.KeyHandlerKey.Right:
if (_selectionX < (_description.Columns - 1))
{
_selectionX++;
}
break;
// Move Up
case Microsoft.MediaCenter.TVVM.KeyHandlerKey.Up:
if (_selectionY > 0)
{
_selectionY--;
}
break;
// Move Down
case Microsoft.MediaCenter.TVVM.KeyHandlerKey.Down:
if (_selectionY < (_description.Rows - 1))
{
_selectionY++;
}
break;
// User hit OK/Enter. Tune to the channel and exit the Addin.
case Microsoft.MediaCenter.TVVM.KeyHandlerKey.Return:
// get the channel box
ChannelBox channelBox = _description.Lookup(_selectionX, _selectionY);
if (null != channelBox)
{
// check if this has a valid tune string
if (channelBox.TuneString != string.Empty)
{
// Start tuning request
_tuning.Tune(channelBox.TuneString, true);
// Call exit.
_addin.Exit();
return;
}
}
break;
}
UpdateDisplayAndAudio();
}
catch (Exception)
{
}
}