private void btnPredictClick(object sender, RoutedEventArgs e)
{
btnPredict.Visibility = Visibility.Collapsed;
saveCanvas(DOODLE_FN);
//ink.Visibility = Visibility.Collapsed;
string scriptoutput = runPredictScript(DOODLE_FN, PREDICT_COUNT);
string latex = "default";
string labelsImageFn = "default";
int numSymbols = -1;
var symbolImgFileNames = new List <string>();
using (var reader = new StringReader(scriptoutput))
{
latex = reader.ReadLine();
labelsImageFn = reader.ReadLine();
numSymbols = Int32.Parse(reader.ReadLine());
for (int i = 0; i < numSymbols; i++)
{
string symbolImgFn = reader.ReadLine();
symbolImgFileNames.Add(symbolImgFn);
}
}
textPred.Text = latex;
listSymbolImages.Items.Clear();
foreach (var symbolImgFileName in symbolImgFileNames)
{
var magicImage = new MagicImage();
magicImage.Path = symbolImgFileName;
listSymbolImages.Items.Add(magicImage);
}
string latexDocument = LATEX_PRE + latex + LATEX_POST;
displayLatex(latexDocument);
var processedOutputImage = new BitmapImage(new Uri(labelsImageFn, UriKind.Absolute));
imageProcess.Source = processedOutputImage;
listSymbolImages.Visibility = Visibility.Visible;
imageLatex.Visibility = Visibility.Visible;
imageProcess.Visibility = Visibility.Visible;
btnReset.Visibility = Visibility.Visible;
btnPredict.Visibility = Visibility.Collapsed;
PREDICT_COUNT += 1;
}
/// <summary>
/// 异步加载瓦片
/// </summary>
/// <param name="c2p">显示中心</param>
private void Build(Pixel c2p)
{
// 计算栅格图片
List <Patch> patchs = this.Patch(c2p);
if (!MatchUtils.IsEmpty(patchs))
{
this.Facade.Dispatcher.BeginInvoke(new Action(() =>
{
UIElementCollection ware = this.Facade.Children;
{
bool erase = true;
{
Image[] tiles = ware.Cast <Image>().ToArray();
foreach (Image tile in tiles)
{
erase = true;
{
for (int i = patchs.Count - 1; i > -1; i--)
{
if (patchs[i].Uid.Equals(tile.Uid))
{
patchs.RemoveAt(i);
{
erase = false;
}
break;
}
}
if (erase)
{
// 终止加载
this.Target.Thread.Detach((MagicThread)tile.Tag);
{
tile.Uid = null;
tile.Tag = null;
}
ware.Remove(tile);
}
}
}
// 释放内存
Array.Clear(tiles, 0, tiles.Length);
}
// 加载瓦片
Image mesh = null;
{
foreach (Patch patch in patchs)
{
ware.Add(mesh = new Image());
{
mesh.Uid = patch.Uid;
mesh.Width = this.Block.Wide;
mesh.Height = this.Block.High;
mesh.Opacity = this.Alpha / 100.0;
// 瓦片位置
{
Canvas.SetTop(mesh, this.Axis4y(patch.Num, patch.Row, this.Nature.Y));
Canvas.SetLeft(mesh, this.Axis4x(patch.Num, patch.Col, this.Nature.X));
}
}
// 异步下载
mesh.Tag = MagicImage.AsyncLoad(this.Source(patch.Num, patch.Row, patch.Col), this.Target.Memory, this.Target.Thread, new Action <ImageSource, int, int, int, Image>((data, l, r, c, tile) =>
{
tile.Dispatcher.BeginInvoke(new Action(() =>
{
if (!MatchUtils.IsEmpty(tile.Uid))
{
if (MatchUtils.IsEmpty(data))
{
try
{
data = this.Repair(l, r, c);
}
catch
{
data = null;
}
finally
{
if (!MatchUtils.IsEmpty(data) && data.CanFreeze)
{
data.Freeze();
}
}
}
// 绘制瓦片
tile.Source = data;
}
}));
}), new Object[] { patch.Num, patch.Row, patch.Col, mesh });
}
// 释放内存
mesh = null;
}
}
// 释放内存
patchs.Clear();
}));
}
}