public static int[] CreateDottedImage(int width, int height)
{
Random rnd = new Random();
const int pointsNum = 100000;
const double radius = 1.5;
var randomPoints = Enumerable.Range(0, pointsNum).Select(_ => new Point(rnd.NextDouble() * width, rnd.NextDouble() * height));
randomPoints = Filter(randomPoints, radius);
DrawingGroup drawing = new DrawingGroup();
var dc = drawing.Append();
foreach (var point in randomPoints)
{
HsbColor color = new HsbColor(0, 0, Math.Round(5 * rnd.NextDouble()) / 4);
SolidColorBrush brush = new SolidColorBrush(color.ToArgbColor());
//drawing.Children.Add(new GeometryDrawing(brush, null, new EllipseGeometry(point, radius, radius)));
dc.DrawEllipse(brush, null, point, radius, radius);
}
dc.Close();
DrawingImage drawingImage = new DrawingImage();
drawingImage.Drawing = drawing;
drawingImage.Freeze();
if ((imageCreatingThread.ThreadState | ThreadState.Running) != imageCreatingThread.ThreadState)
imageCreatingThread.Start();
imageQueue.Add(new RequestInfo { Width = width, Heigth = height, DrawingImage = drawingImage });
var pixels = resultQueue.Take();
return pixels;
}
public void SetImage()
{
var text = String.IsNullOrWhiteSpace(textBox.Text) ? "Enter some text above" : textBox.Text;
//preview.Source = Renderer.RenderImage(text);
const int width = 300;
var words = new List<TextSegment>();
var output = new DrawingGroup();
//TextLines always include a line terminator, even for the last line in the string.
string fullText = text + "\n";
int lineStart = 0; //In characters
double top = 0; //In pixels
foreach (var line in Measurer.MeasureLines(text, width, format, output)) {
int lastSpace = lineStart;
while (lastSpace < lineStart + line.Length - 1) {
while (lastSpace < lineStart + line.Length && Char.IsWhiteSpace(fullText[lastSpace]))
lastSpace++; //Skip over the previous chunk of whitespace
if (lastSpace == lineStart + line.Length)
continue; //If the line ends in whitespace, skip it entirely
//Find the next space within this line
int nextSpace = fullText.IndexOfAny(whitespaceChars, lastSpace + 1, line.Length - (lastSpace + 1 - lineStart));
if (nextSpace < 0) //Include the last word, even if it doesn't end with a space.
nextSpace = lineStart + line.Length - 1;
//if (nextSpace == lastSpace) continue; //Entirely Skip double spaces
var word = text.Substring(lastSpace, nextSpace - lastSpace);
var bounds = line.GetTextBounds(lastSpace, word.Length);
//bounds is relative to the line
words.Add(new TextSegment(Rect.Offset(bounds[0].Rectangle, 0, top), word));
lastSpace = nextSpace;
}
lineStart += line.Length;
top += line.Height;
line.Dispose();
}
using (var dc = output.Append()) {
var pen = new Pen(new SolidColorBrush(Color.FromArgb(128, 0, 0, 255)), 1);
foreach (var word in words) {
dc.DrawRectangle(null, pen, word.Bounds);
}
}
preview.Source = new DrawingImage(output);
}
