public void Draw()
{
const int WM_SETREDRAW = 0x000B;
SendMessage(Handle, WM_SETREDRAW, 0, IntPtr.Zero); // supress redrawing
TransformParams tr = new TransformParams(0, 0, m_scale_factor);
int width = (int)Math.Ceiling(tr.Transform(m_canvas_size.Width));
int height = (int)Math.Ceiling(tr.Transform(m_canvas_size.Height));
if (m_drawable_object == null)
{
PrepareBitmap(MAIN_LAYER, width, height);
SetupCanvas(width, height);
picBoxCanvas.Image = canvas_view.Bitmap;
}
else
{
BitmapInfo main_layer = PrepareBitmap(MAIN_LAYER, width, height);
m_drawable_object.Draw(main_layer.Graphics, tr);
SetupCanvas(width, height);
picBoxCanvas.Image = canvas_view.Bitmap;
}
SendMessage(Handle, WM_SETREDRAW, 1, IntPtr.Zero); // resume redrawing
AutoScroll = true; // update scrollbars
Refresh(); // repaint control
}
public static bool IsObjectAt(float ptX, float ptY, TransformParams t, float x1, float y1, float x2, float y2, ref float dist)
{
Utils.ThrowException(t == null ? new ArgumentNullException("t") : null);
Vector2DF pt1 = t.Transform(new Vector2DF(x1, y1));
Vector2DF pt2 = t.Transform(new Vector2DF(x2, y2));
return(VisualizationUtils.TestLineHit(new Vector2DF(ptX, ptY), pt1, pt2, mHitDist, ref dist));
}
public static bool IsObjectAt(float pt_x, float pt_y, TransformParams tr, float x1, float y1, float x2, float y2, ref float dist)
{
Utils.ThrowException(tr.NotSet ? new ArgumentValueException("tr") : null);
Vector2D pt1 = tr.Transform(new Vector2D(x1, y1));
Vector2D pt2 = tr.Transform(new Vector2D(x2, y2));
return(VisualizationUtils.TestLineHit(new Vector2D(pt_x, pt_y), pt1, pt2, m_hit_dist, ref dist));
}
public void Transform(TransformParams tr)
{
Utils.ThrowException(tr.NotSet ? new ArgumentValueException("tr") : null);
for (int i = 0; i < m_rects.Count; i++)
{
m_rects[i] = tr.Transform(m_rects[i]);
}
m_bounding_box = tr.Transform(m_bounding_box);
}
public void Transform(TransformParams tr)
{
Utils.ThrowException(tr == null ? new ArgumentNullException("tr") : null);
for (int i = 0; i < mRects.Count; i++)
{
mRects[i] = tr.Transform(mRects[i]);
}
mBoundingBox = tr.Transform(mBoundingBox);
}
public override IDrawableObject GetObjectAt(float x, float y, TransformParams t, ref float dist)
{
Utils.ThrowException(t == null ? new ArgumentNullException("t") : null);
float width = t.Transform(mWidth);
float height = t.Transform(mHeight);
Vector2DF pos = t.Transform(new Vector2DF(mX - mWidth / 2f, mY - mHeight / 2f));
return(VisualizationUtils.PointInsideRect(x, y, new RectangleF(pos.X, pos.Y, width, height)) ? this : null);
}
public static bool IsObjectAt(Image image, float x, float y, float ptX, float ptY, TransformParams t)
{
Utils.ThrowException(t == null ? new ArgumentNullException("t") : null);
// TODO: other exceptions
float width = t.Transform(image.Width);
float height = t.Transform(image.Height);
Vector2DF pos = t.Transform(new Vector2DF(x, y));
return(VisualizationUtils.PointInsideRect(ptX, ptY, new RectangleF(pos.X, pos.Y, width, height)));
}
public static void Draw(float x1, float y1, float x2, float y2, Graphics g, Pen pen, TransformParams t)
{
Utils.ThrowException(g == null ? new ArgumentNullException("g") : null);
Utils.ThrowException(pen == null ? new ArgumentNullException("pen") : null);
Utils.ThrowException(t == null ? new ArgumentNullException("t") : null);
Vector2DF pt1 = t.Transform(new Vector2DF(x1, y1));
Vector2DF pt2 = t.Transform(new Vector2DF(x2, y2));
g.DrawLine(pen, pt1, pt2);
}
public static void Draw(float x1, float y1, float x2, float y2, Graphics gfx, Pen pen, TransformParams tr)
{
Utils.ThrowException(gfx == null ? new ArgumentNullException("gfx") : null);
Utils.ThrowException(pen == null ? new ArgumentNullException("pen") : null);
Utils.ThrowException(tr.NotSet ? new ArgumentValueException("tr") : null);
Vector2D pt1 = tr.Transform(new Vector2D(x1, y1));
Vector2D pt2 = tr.Transform(new Vector2D(x2, y2));
gfx.DrawLine(pen, pt1, pt2);
}
public override void Draw(Graphics g, TransformParams t)
{
Utils.ThrowException(g == null ? new ArgumentNullException("g") : null);
Utils.ThrowException(t == null ? new ArgumentNullException("t") : null);
Vector2DF pos = t.Transform(new Vector2DF(mX - mWidth / 2f, mY - mHeight / 2f));
using (Font font = new Font(mFont.FontFamily, t.Transform(mFont.Size), mFont.Style))
{
g.DrawString(mLabel, font, mBrush, pos.X, pos.Y, StringFormat.GenericTypographic);
}
}
public static void Draw(Image image, float x, float y, Graphics g, TransformParams t)
{
Utils.ThrowException(g == null ? new ArgumentNullException("g") : null);
Utils.ThrowException(t == null ? new ArgumentNullException("t") : null);
// TODO: throw other exceptions
float width = t.Transform(image.Width);
float height = t.Transform(image.Height);
Vector2DF pos = t.Transform(new Vector2DF(x, y));
PixelOffsetMode pixelOffsetMode = g.PixelOffsetMode;
g.PixelOffsetMode = PixelOffsetMode.Half;
g.DrawImage(image, pos.X, pos.Y, width, height);
g.PixelOffsetMode = pixelOffsetMode;
}
public static void Draw(float x1, float y1, float x2, float y2, Graphics g, Pen pen, TransformParams t, BoundingArea.ReadOnly boundingArea)
{
#if !NO_PARTIAL_RENDERING
Utils.ThrowException(g == null ? new ArgumentNullException("g") : null);
Utils.ThrowException(pen == null ? new ArgumentNullException("pen") : null);
Utils.ThrowException(t == null ? new ArgumentNullException("t") : null);
Utils.ThrowException(boundingArea == null ? new ArgumentNullException("boundingArea") : null);
Vector2DF pt1 = t.Transform(new Vector2DF(x1, y1));
Vector2DF pt2 = t.Transform(new Vector2DF(x2, y2));
Vector2DF isectPt1 = new Vector2DF();
Vector2DF isectPt2 = new Vector2DF();
BoundingArea inflatedArea = boundingArea.GetWritableCopy();
inflatedArea.Inflate(pen.Width / 2f + 5f, pen.Width / 2f + 5f);
ArrayList <KeyDat <float, PointInfo> > points = new ArrayList <KeyDat <float, PointInfo> >();
foreach (RectangleF rect in inflatedArea.Rectangles)
{
if (LineIntersectRectangle(pt1, pt2, rect, ref isectPt1, ref isectPt2))
{
float distPt1 = (pt1 - isectPt1).GetLength();
float distPt2 = (pt1 - isectPt2).GetLength();
bool startPt1 = distPt1 < distPt2;
points.Add(new KeyDat <float, PointInfo>(distPt1, new PointInfo(isectPt1, startPt1)));
points.Add(new KeyDat <float, PointInfo>(distPt2, new PointInfo(isectPt2, !startPt1)));
}
}
points.Sort();
int refCount = 0;
int startIdx = 0;
for (int i = 0; i < points.Count; i++)
{
PointInfo pointInfo = points[i].Dat;
if (pointInfo.IsStartPoint)
{
refCount++;
}
else
{
refCount--;
if (refCount == 0)
{
g.DrawLine(pen, points[startIdx].Dat.Point, pointInfo.Point);
startIdx = i + 1;
}
}
}
#else
Draw(x1, y1, x2, y2, g, pen, t);
#endif
}
public static void Draw(float x, float y, float r_x, float r_y, Graphics gfx, Pen pen, Brush brush, TransformParams tr)
{
Utils.ThrowException(gfx == null ? new ArgumentNullException("gfx") : null);
Utils.ThrowException(pen == null ? new ArgumentNullException("pen") : null);
Utils.ThrowException(brush == null ? new ArgumentNullException("brush") : null);
Utils.ThrowException(tr.NotSet ? new ArgumentValueException("tr") : null);
x -= r_x;
y -= r_y;
Vector2D center = tr.Transform(new Vector2D(x, y));
float d_x = tr.Transform(2f * r_x);
float d_y = tr.Transform(2f * r_y);
lock (brush) { gfx.FillEllipse(brush, center.X, center.Y, d_x, d_y); }
lock (pen) { gfx.DrawEllipse(pen, center.X, center.Y, d_x, d_y); }
}
public static void Draw(float x, float y, float rX, float rY, Graphics g, Pen pen, Brush brush, TransformParams t)
{
Utils.ThrowException(g == null ? new ArgumentNullException("g") : null);
Utils.ThrowException(pen == null ? new ArgumentNullException("pen") : null);
Utils.ThrowException(brush == null ? new ArgumentNullException("brush") : null);
Utils.ThrowException(t == null ? new ArgumentNullException("t") : null);
x -= rX;
y -= rY;
Vector2DF center = t.Transform(new Vector2DF(x, y));
float dX = t.Transform(2f * rX);
float dY = t.Transform(2f * rY);
g.FillEllipse(brush, center.X, center.Y, dX, dY);
g.DrawEllipse(pen, center.X, center.Y, dX, dY);
}
public static void Draw(float x, float y, float rX, float rY, Graphics gfx, Pen pen, Brush brush, TransformParams tr)
{
Utils.ThrowException(gfx == null ? new ArgumentNullException("gfx") : null);
Utils.ThrowException(pen == null ? new ArgumentNullException("pen") : null);
Utils.ThrowException(brush == null ? new ArgumentNullException("brush") : null);
Utils.ThrowException(tr.NotSet ? new ArgumentValueException("tr") : null);
x -= rX;
y -= rY;
VectorF center = tr.Transform(new VectorF(x, y));
float dX = tr.Transform(2f * rX);
float dY = tr.Transform(2f * rY);
lock (brush) { gfx.FillEllipse(brush, center.X, center.Y, dX, dY); }
lock (pen) { gfx.DrawEllipse(pen, center.X, center.Y, dX, dY); }
}
public static bool IsObjectAt(float pt_x, float pt_y, TransformParams tr, float c_x, float c_y, float r_x, float r_y)
{
Utils.ThrowException(tr.NotSet ? new ArgumentValueException("tr") : null);
Vector2D center = tr.Transform(new Vector2D(c_x, c_y));
Vector2D pt = new Vector2D(pt_x, pt_y);
if (pt == center)
{
return(true);
}
float angle = (pt - center).GetAngle();
float x = (float)Math.Cos(angle) * tr.Transform(r_x);
float y = (float)Math.Sin(angle) * tr.Transform(r_y);
float r = new Vector2D(x, y).GetLength();
return((center - pt).GetLength() <= r);
}
public static bool IsObjectAt(float ptX, float ptY, TransformParams tr, float cX, float cY, float rX, float rY)
{
Utils.ThrowException(tr.NotSet ? new ArgumentValueException("tr") : null);
VectorF center = tr.Transform(new VectorF(cX, cY));
VectorF pt = new VectorF(ptX, ptY);
if (pt == center)
{
return(true);
}
float angle = (pt - center).GetAngle();
float x = (float)Math.Cos(angle) * tr.Transform(rX);
float y = (float)Math.Sin(angle) * tr.Transform(rY);
float r = new VectorF(x, y).GetLength();
return((center - pt).GetLength() <= r);
}
