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Implemented osPenCap, that sets EndCap and StartCap to Pen. This allows using arrow, diamond, round and flat caps.

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* Made image request safer, if it can't find an image for any reason, draws a square where the image should be and a message alerting the user.
This commit is contained in:
Arthur Valadares
2009-08-25 10:32:45 -03:00
parent 9c9fa51b0f
commit efb287f28f
4 changed files with 85 additions and 7 deletions
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77
OpenSim/Region/CoreModules/Scripting/VectorRender/VectorRenderModule.cs
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@@ -443,7 +443,16 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
endPoint.X = (int) x;
endPoint.Y = (int) y;
Image image = ImageHttpRequest(nextLine);
graph.DrawImage(image, (float) startPoint.X, (float) startPoint.Y, x, y);
if (image != null)
{
graph.DrawImage(image, (float)startPoint.X, (float)startPoint.Y, x, y);
}
else
{
graph.DrawString("URL couldn't be resolved or is", new Font("Arial",6), myBrush, startPoint);
graph.DrawString("not an image. Please check URL.", new Font("Arial", 6), myBrush, new Point(startPoint.X, 12 + startPoint.Y));
graph.DrawRectangle(drawPen, startPoint.X, startPoint.Y, endPoint.X, endPoint.Y);
}
startPoint.X += endPoint.X;
startPoint.Y += endPoint.Y;
}
@@ -539,6 +548,57 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
float size = Convert.ToSingle(nextLine, CultureInfo.InvariantCulture);
drawPen.Width = size;
}
else if (nextLine.StartsWith("PenCap"))
{
bool start = true, end = true;
nextLine = nextLine.Remove(0, 6);
nextLine = nextLine.Trim();
string[] cap = nextLine.Split(partsDelimiter);
if (cap[0].ToLower() == "start")
end = false;
else if (cap[0].ToLower() == "end")
start = false;
else if (cap[0].ToLower() != "both")
return;
string type = cap[1].ToLower();
if (end)
{
switch (type)
{
case "arrow":
drawPen.EndCap = System.Drawing.Drawing2D.LineCap.ArrowAnchor;
break;
case "round":
drawPen.EndCap = System.Drawing.Drawing2D.LineCap.RoundAnchor;
break;
case "diamond":
drawPen.EndCap = System.Drawing.Drawing2D.LineCap.DiamondAnchor;
break;
case "flat":
drawPen.EndCap = System.Drawing.Drawing2D.LineCap.Flat;
break;
}
}
if (start)
{
switch (type)
{
case "arrow":
drawPen.StartCap = System.Drawing.Drawing2D.LineCap.ArrowAnchor;
break;
case "round":
drawPen.StartCap = System.Drawing.Drawing2D.LineCap.RoundAnchor;
break;
case "diamond":
drawPen.StartCap = System.Drawing.Drawing2D.LineCap.DiamondAnchor;
break;
case "flat":
drawPen.StartCap = System.Drawing.Drawing2D.LineCap.Flat;
break;
}
}
}
else if (nextLine.StartsWith("PenColour"))
{
nextLine = nextLine.Remove(0, 9);
@@ -610,16 +670,19 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
private Bitmap ImageHttpRequest(string url)
{
try
{
WebRequest request = HttpWebRequest.Create(url);
//Ckrinke: Comment out for now as 'str' is unused. Bring it back into play later when it is used.
//Ckrinke Stream str = null;
HttpWebResponse response = (HttpWebResponse) (request).GetResponse();
if (response.StatusCode == HttpStatusCode.OK)
{
Bitmap image = new Bitmap(response.GetResponseStream());
return image;
HttpWebResponse response = (HttpWebResponse)(request).GetResponse();
if (response.StatusCode == HttpStatusCode.OK)
{
Bitmap image = new Bitmap(response.GetResponseStream());
return image;
}
}
catch { }
return null;
}
}