private void GetFullMapThread(CancellationToken ct)
{
var leftBound = new Coordinate(Properties.Settings.Default.LeftMapBound, Properties.Settings.Default.TopMapBound);
var rightBound = new Coordinate(Properties.Settings.Default.RightMapBound, Properties.Settings.Default.BottomMapBound);
var rectBound = new CoordinateRectangle(leftBound, rightBound);
try
{
var mapWidth = Convert.ToInt32((new GoogleCoordinate(rectBound.RightTop, _mapLevel)).X - (new GoogleCoordinate(rectBound.LeftTop, _mapLevel)).X) + 2 * GoogleBlock.BlockSize;
var mapHeight = Convert.ToInt32((new GoogleCoordinate(rectBound.LeftBottom, _mapLevel)).Y - (new GoogleCoordinate(rectBound.LeftTop, _mapLevel)).Y) + 2 * GoogleBlock.BlockSize;
var image = GraphicLayer.CreateCompatibleBitmap(null, mapWidth, mapHeight, _mapPiFormat);
var graphics = Graphics.FromImage(image);
var viewBound = rectBound.LineMiddlePoint.GetScreenViewFromCenter(mapWidth, mapHeight, _mapLevel);
var blockView = viewBound.BlockView;
var mapBlockCount = (blockView.Right - blockView.Left + 1) * (blockView.Bottom - blockView.Top + 1);
var mapBlockNumber = 0;
BeginInvoke(ProgressEvent, new Object[] { mapBlockNumber * 100 / mapBlockCount, mapBlockNumber, mapBlockCount });
for (var x = blockView.Left; x <= blockView.Right; x++)
{
for (var y = blockView.Top; y <= blockView.Bottom; y++)
{
var block = new GoogleBlock(x, y, _mapLevel);
var bmp = GraphicLayer.CreateCompatibleBitmap(
MapLayer.DownloadImageFromFile(block) ?? MapLayer.DownloadImageFromGoogle(block, true),
GoogleBlock.BlockSize, GoogleBlock.BlockSize, _mapPiFormat);
var rect = ((GoogleRectangle)block).GetScreenRect(viewBound);
graphics.DrawImageUnscaled(bmp, rect.Location.X, rect.Location.Y);
mapBlockNumber++;
BeginInvoke(ProgressEvent, new Object[] { mapBlockNumber * 100 / mapBlockCount, mapBlockNumber, mapBlockCount });
if (ct.IsCancellationRequested)
{
return;
}
}
}
BeginInvoke(SaveMapEvent, new Object[] { image });
}
catch (Exception e)
{
BeginInvoke(ProgressEvent, new Object[] { 101, 0, 0 });
MessageBox.Show(e.Message, @"Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}