|
public static Draw ( |
||
| diagram | ||
| g | ||
| return | void | |
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnPrintPage(object sender, PrintPageEventArgs e)
{
Graphics graphics = e.Graphics;
SmoothingMode enumSmooth = graphics.SmoothingMode;
TextRenderingHint enumHint = graphics.TextRenderingHint;
CompositingQuality enumQuality = graphics.CompositingQuality;
graphics.SmoothingMode = SmoothingMode.HighQuality;
graphics.TextRenderingHint = TextRenderingHint.AntiAlias;
graphics.CompositingQuality = CompositingQuality.HighQuality;
_diagram.Layout(graphics);
Size bbSize = _diagram.BoundingBox.Size + _diagram.Padding + _diagram.Padding;
Size totalSize = new Size((int)(bbSize.Width * _diagram.Scale), (int)(bbSize.Height * _diagram.Scale));
int columnNumber = 1 + totalSize.Width / e.MarginBounds.Width;
int rowNumber = 1 + totalSize.Height / e.MarginBounds.Height;
int pageNumber = columnNumber * rowNumber;
int row, column = Math.DivRem(_currentPage, rowNumber, out row);
Rectangle clipping = new Rectangle(new Point(column * e.MarginBounds.Width, row * e.MarginBounds.Height),
new Size((column + 1) * e.MarginBounds.Width, (row + 1) * e.MarginBounds.Height));
graphics.Clip = new Region(e.MarginBounds);
//Point virtualPoint = this.panelDiagram.VirtualPoint;
graphics.TranslateTransform(-(float)(clipping.Left - e.MarginBounds.Left),
-(float)(clipping.Top - e.MarginBounds.Top));
DiagramGdiRenderer.Draw(_diagram, graphics, clipping);
if (_currentPage < pageNumber - 1)
{
_currentPage++;
e.HasMorePages = true;
}
graphics.SmoothingMode = enumSmooth;
graphics.TextRenderingHint = enumHint;
graphics.CompositingQuality = enumQuality;
}
public bool Export(Stream stream, string extension, Graphics referenceGraphics,
DiagramAlertHandler alerteDelegate, IDictionary <string, object> specificRendererParameters)
{
bool result = false;
if (extension.Equals(".emf", StringComparison.OrdinalIgnoreCase))
{
float scaleSave = _diagram.Scale;
try
{
_diagram.Scale = 1.0f;
_diagram.Layout(referenceGraphics);
IntPtr hdc = referenceGraphics.GetHdc();
Metafile metafile = new Metafile(stream, hdc);
Graphics graphics = Graphics.FromImage(metafile);
graphics.SmoothingMode = SmoothingMode.HighQuality;
_diagram.Layout(graphics);
DiagramGdiRenderer.Draw(_diagram, graphics);
referenceGraphics.ReleaseHdc(hdc);
metafile.Dispose();
graphics.Dispose();
result = true;
}
finally
{
_diagram.Scale = scaleSave;
_diagram.Layout(referenceGraphics);
}
}
else if (extension.Equals(".png", StringComparison.OrdinalIgnoreCase) ||
extension.Equals(".jpg", StringComparison.OrdinalIgnoreCase) ||
extension.Equals(".jpeg", StringComparison.OrdinalIgnoreCase))
{
Rectangle bbox = _diagram.ScaleRectangle(_diagram.BoundingBox);
bool bypassAlert = true;
if (alerteDelegate != null && (bbox.Width > 10000 || bbox.Height > 10000))
{
bypassAlert = alerteDelegate("Huge image generation",
String.Format("Do you agree to generate a {0}x{1} image?", bbox.Width, bbox.Height));
}
if (bypassAlert)
{
Bitmap bitmap = new Bitmap(bbox.Width, bbox.Height);
Graphics graphics = Graphics.FromImage(bitmap);
graphics.FillRectangle(Brushes.White, 0, 0, bbox.Width, bbox.Height);
DiagramGdiRenderer.Draw(_diagram, graphics);
if (extension.CompareTo(".png") == 0)
{
bitmap.Save(stream, ImageFormat.Png);
}
else
{
bitmap.Save(stream, ImageFormat.Jpeg);
}
result = true;
}
}
else if (extension.CompareTo(".txt") == 0 || extension.CompareTo(".csv") == 0)
{
float scaleSave = _diagram.Scale;
try
{
_diagram.Scale = 1.0f;
_diagram.Layout(referenceGraphics);
using (StreamWriter sw = new StreamWriter(stream))
{
using (DiagramTxtRenderer renderer = new DiagramTxtRenderer(sw))
{
renderer.IsCSV = extension.CompareTo(".csv") == 0;
IDictionary <string, object> parameters = specificRendererParameters as IDictionary <string, object>;
object o;
if (parameters != null)
{
if (parameters.TryGetValue("TextOutputFields", out o))
{
renderer.TextOutputFields = o as IList <string>;
}
if (parameters.TryGetValue("DisplayAttributes", out o) && o is bool)
{
renderer.DisplayAttributes = (bool)o;
}
if (parameters.TryGetValue("Schema", out o))
{
renderer.Schema = o as Schema;
}
}
renderer.Render(_diagram);
}
sw.Close();
}
result = true;
}
finally
{
_diagram.Scale = scaleSave;
_diagram.Layout(referenceGraphics);
}
}
else //if (extension.CompareTo(".svg") == 0)
{
float scaleSave = _diagram.Scale;
try
{
_diagram.Scale = 1.0f;
_diagram.Layout(referenceGraphics);
using (StreamWriter streamWriter = new StreamWriter(stream))
{
using (DiagramSvgRenderer renderer = new DiagramSvgRenderer(streamWriter, referenceGraphics))
{
renderer.Render(_diagram);
}
streamWriter.Close();
}
result = true;
}
finally
{
_diagram.Scale = scaleSave;
_diagram.Layout(referenceGraphics);
}
}
return(result);
}