public void DrawWhiteboardRoomObjects(WhiteboardRoom wbRoom, Canvas canvas)
{
if (wbRoom == null)
{
return;
}
// Draw all whiteboard commands
Array drawingCommands = wbRoom.GetCurrentDrawingCommands();
foreach (object obj in drawingCommands)
{
if (obj is LineObject)
{
LineObject line = (LineObject)obj;
LocationValue start = new LocationValue();
LocationValue end = new LocationValue();
int drawPointSize = (int)(line.Width * _playfield.Scale);
if ((drawPointSize == 0) && (line.Width > 0))
{
drawPointSize = 1;
}
if ((line.Mode == DrawModes.Line) || (line.Mode == DrawModes.Circle) ||
(line.Mode == DrawModes.Arrow))
{
start.X = line.Start.X * _playfield.Scale + Map.Position.X;
start.Y = line.Start.Y * _playfield.Scale + Map.Position.Y;
end.X = line.End.X * _playfield.Scale + Map.Position.X;
end.Y = line.End.Y * _playfield.Scale + Map.Position.Y;
if (line.Mode == DrawModes.Line)
{
if ((line.Text != null) && (line.Text.Length > 0))
{
int lineTextSize = (int) ((LineTextSize / line.OriginalScale) * _playfield.Scale);
DrawShortenedLine(canvas, line.Color, drawPointSize, (float)start.X, (float)start.Y,
(float)end.X, (float)end.Y, (float) (_playfield.Scale / line.OriginalScale));
if (lineTextSize > MaxFontSize)
{
lineTextSize = MaxFontSize;
}
if (lineTextSize < 1)
{
lineTextSize = 1;
}
if (wbFonts[lineTextSize] == null)
{
wbFonts[lineTextSize] = canvas.CreateFont(new System.Drawing.Font("Arial", lineTextSize, FontStyle.Bold, GraphicsUnit.Pixel));
}
DrawCenteredText(wbFonts[lineTextSize], line.Text, (int)end.X, (int)end.Y, line.Color);
}
else
{
canvas.DrawLine(line.Color, drawPointSize, (float)start.X, (float)start.Y,
(float)end.X, (float)end.Y);
}
}
else if (line.Mode == DrawModes.Circle)
{
canvas.DrawCircle(line.Color, drawPointSize, (float)start.X, (float)start.Y,
(float)end.X, (float)end.Y);
}
else if (line.Mode == DrawModes.Arrow)
{
canvas.DrawArrow(line.Color, drawPointSize, (float)start.X, (float)start.Y,
(float)end.X, (float)end.Y);
}
}
else if ((line.Mode == DrawModes.Text) && (line.Text != null) &&
(line.Text.Length > 0))
{
start.X = line.Start.X * _playfield.Scale + Map.Position.X;
start.Y = line.Start.Y * _playfield.Scale + Map.Position.Y;
if (drawPointSize > MaxFontSize)
{
drawPointSize = MaxFontSize;
}
if (wbFonts[drawPointSize] == null)
{
wbFonts[drawPointSize] = canvas.CreateFont(new System.Drawing.Font("Arial", drawPointSize, FontStyle.Bold, GraphicsUnit.Pixel));
}
DrawCenteredText(wbFonts[drawPointSize], line.Text, (int)start.X, (int)start.Y, line.Color);
// Update the bounding box if needed
if ((line.BoundingPolygon == null) || (wbRoom == WBRoom))
{
RectangleF textRect;
Polygon textPoly;
float width;
float height;
PointF boundStart = new PointF();
textRect = wbFonts[drawPointSize].MeasureString(null, line.Text, DrawTextFormat.None, line.Color);
width = textRect.Right / _playfield.Scale;
if ((width * line.OriginalScale) < 5)
{
width = 5 / (float) line.OriginalScale;
}
height = textRect.Bottom / _playfield.Scale;
if ((height * line.OriginalScale) < 5)
{
height = 5 / (float) line.OriginalScale;
}
boundStart.X = (float)line.Start.X - (width / 2);
boundStart.Y = (float)line.Start.Y - (height / 2);
textPoly = new Polygon();
textPoly.Points.Add(new Vector(boundStart.X, boundStart.Y));
textPoly.Points.Add(new Vector(boundStart.X + width, boundStart.Y));
textPoly.Points.Add(new Vector(boundStart.X + width, boundStart.Y + height));
textPoly.Points.Add(new Vector(boundStart.X, boundStart.Y + height));
textPoly.Offset(0, 0);
textPoly.BuildEdges();
line.BoundingPolygon = textPoly;
}
}
// Draw Bounding rectable if object is selected
if ((line.ObjectSelected) && (line.BoundingPolygon != null) && (line.BoundingPolygon.Points.Count >= 2))
{
LocationValue boundStart = new LocationValue();
LocationValue boundEnd = new LocationValue();
Vector prevPoint = line.BoundingPolygon.Points[line.BoundingPolygon.Points.Count - 1];
foreach (Vector curPoint in line.BoundingPolygon.Points)
{
boundStart.X = prevPoint.X * _playfield.Scale + Map.Position.X;
boundStart.Y = prevPoint.Y * _playfield.Scale + Map.Position.Y;
boundEnd.X = curPoint.X * _playfield.Scale + Map.Position.X;
boundEnd.Y = curPoint.Y * _playfield.Scale + Map.Position.Y;
canvas.DrawLine(Color.Black.ToArgb(), 1, (float)boundStart.X, (float)boundStart.Y,
(float)boundEnd.X, (float)boundEnd.Y);
prevPoint = curPoint;
}
}
}
}
}
