private void AsynDisplayImage()
{
ThreadPool.QueueUserWorkItem(o =>
{
Application.Current.Dispatcher.BeginInvoke(
DispatcherPriority.SystemIdle,
new Action(() =>
{
//新开一个线程池执行draw
BMDrawer bmd = new BMDrawer();
string teststrings = characterTextBox.Text;
//放大比例
double rate = 1f;
PresentationSource source = PresentationSource.FromVisual(this);
double dpiX = 0f, dpiY = 0f;
if (source != null)
{
dpiX = 96.0 * source.CompositionTarget.TransformToDevice.M11;
dpiY = 96.0 * source.CompositionTarget.TransformToDevice.M22;
}
rate = dpiX / 96d;
Bitmap bmp = bmd.test_draw(teststrings);
BitmapImage cbmp = BitmapToBitmapImage(bmp);
image.Height = cbmp.Height * rate;
image.Width = cbmp.Width * rate;
image.Source = cbmp;
if (checkboxShowLine.IsChecked == true)
{
DrawingVisual drawingVisual = new DrawingVisual();
using (DrawingContext drawingContext = drawingVisual.RenderOpen())
{
//
// ... draw on the drawingContext
//
System.Windows.Media.Pen pen = new System.Windows.Media.Pen(System.Windows.Media.Brushes.Red, (double)0.3f);
drawingContext.DrawImage(image.Source, new Rect(0, 0, image.Source.Width * rate, image.Source.Height * rate));
int x_lines = (int)Math.Round((float)(int)image.Width / (float)GlobalSettings.iTileWidth);
int y_lines = (int)Math.Round((float)(int)image.Height / (float)GlobalSettings.iTileHeight);;
for (int i = 0; i < x_lines + 1; i++)
{
drawingContext.DrawLine(pen, new System.Windows.Point(i * GlobalSettings.iTileWidth, 0),
new System.Windows.Point(i * GlobalSettings.iTileWidth, (float)(int)image.Height));
}
for (int i = 0; i < y_lines + 1; i++)
{
drawingContext.DrawLine(pen, new System.Windows.Point(0, i * GlobalSettings.iTileHeight),
new System.Windows.Point((float)(int)image.Width, i * GlobalSettings.iTileHeight));
}
drawingContext.Close();
RenderTargetBitmap nbmp = new RenderTargetBitmap((int)(image.Width * rate), (int)(image.Height * rate), 96.0 * rate * rate, 96.0 * rate * rate, PixelFormats.Default);
nbmp.Render(drawingVisual);
image.Source = nbmp;
}
}
})
);
});
}
private void AsynSaveSingleImage(string saveFolderName, System.Drawing.Imaging.ImageFormat fmt)
{
ThreadPool.QueueUserWorkItem(o =>
{
Application.Current.Dispatcher.BeginInvoke(
DispatcherPriority.SystemIdle,
new Action(() =>
{
//新开一个线程池执行draw
BMDrawer bmd = new BMDrawer();
string teststrings = tmps.tmpstr;
if (teststrings.Length > 0)
{
Bitmap tmpBmp = bmd.test_draw(teststrings);
Bitmap dest = new Bitmap(tmpBmp.Width, tmpBmp.Height);
if (GlobalSettings.bOptmizeAlpha == true)
{
System.Drawing.Color pixel;
for (int x = 0; x < tmpBmp.Width; x++)
{
for (int y = 0; y < tmpBmp.Height; y++)
{
pixel = tmpBmp.GetPixel(x, y);
int r, g, b, a, Result = 0;
r = pixel.R;
g = pixel.G;
b = pixel.B;
a = pixel.A;
Result = Math.Max(Math.Max(r * a / 255, g * a / 255), b * a / 255);
dest.SetPixel(x, y, System.Drawing.Color.FromArgb(Result, 255, 255, 255));
}
}
}
else
{
dest = tmpBmp;
}
dest.Save(string.Format("{0}\\font.{1}", saveFolderName, fmt.ToString()), fmt);
dest.Dispose();
tmpBmp.Dispose();
}
})
);
});
}