public static void SaveLayoutBitmap(string fileName, CircularCloudLayouter layouter)
{
var bmp = CreateSizedBitmapForLayouter(layouter);
var graphics = FillBackground(bmp, Color.White);
DrawRectanglesAtBitmap(bmp, layouter, graphics, Color.Blue);
graphics.Flush();
bmp.Save(fileName);
}
public static Bitmap CreateSizedBitmapForLayouter(CircularCloudLayouter layouter)
{
int maxX = layouter.Layout.Select(r => r.Right).Max();
int minX = layouter.Layout.Select(r => r.Left).Min();
int maxY = layouter.Layout.Select(r => r.Bottom).Max();
int minY = layouter.Layout.Select(r => r.Top).Min();
int bmpWidth = maxX - minX;
int bmpHeight = maxY - minY;
return(new Bitmap(bmpWidth, bmpHeight));
}
public static void CreateCloudWithWords(string fileName, List <string> words, int baseFontSize)
{
var layouter = new CircularCloudLayouter(new Point(0, 0));
var pairs = AddRectanglesToLayouter(layouter, words, baseFontSize);
var bmp = CreateSizedBitmapForLayouter(layouter);
var graphics = FillBackground(bmp, Color.White);
WriteWordsAtBitmap(pairs, layouter, bmp, graphics);
graphics.Flush();
bmp.Save(fileName);
}
public static void DrawRectanglesAtBitmap(
Bitmap bmp,
CircularCloudLayouter layouter,
Graphics graphics,
Color rectColor)
{
Pen pen = new Pen(new SolidBrush(rectColor));
foreach (var rect in layouter.Layout)
{
rect.Offset(new Point(-layouter.CenterPosition.X, -layouter.CenterPosition.Y));
rect.Offset(new Point(bmp.Width / 2, bmp.Height / 2));
graphics.DrawRectangle(pen, rect);
}
}
private static List <Tuple <string, Rectangle> > AddRectanglesToLayouter(
CircularCloudLayouter layouter,
List <string> words,
int baseFontSize)
{
var graphicsBase = Graphics.FromImage(new Bitmap(1, 1));
var random = new Random();
var fontBase = new Font("Helvetica", baseFontSize);
return(words.Select(s =>
{
var variation = random.Next(16);
return Tuple.Create(s, graphicsBase.MeasureString(s, fontBase) * variation);
}).OrderBy(r => Tuple.Create(r.Item1, -r.Item2.Height))
.Select(s => Tuple.Create(s.Item1, layouter.PutNextRectangle(s.Item2.ToSize())))
.ToList());
}
private static void WriteWordsAtBitmap(List <Tuple <string, Rectangle> > pairs,
CircularCloudLayouter layouter,
Bitmap bmp,
Graphics graphics)
{
var random = new Random();
int j = 0;
foreach (var pair in pairs)
{
string word = pair.Item1;
Rectangle rect = pair.Item2;
rect.Offset(-layouter.CenterPosition.X / 2, -layouter.CenterPosition.Y / 2);
rect.Offset(+bmp.Width / 2, +bmp.Height / 2);
var font = new Font("Helvetica", (float)rect.Width * 3 / word.Length / 2);
graphics.DrawString(word, font, new SolidBrush(GetRandomColor(random)),
rect.X, rect.Y);
j++;
}
}
