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
}
// *** IDrawableObject interface implementation ***
public void Draw(Graphics gfx, TransformParams tr)
{
foreach (IDrawableObject drawable_object in m_drawable_objects)
{
drawable_object.Draw(gfx, tr);
}
}
public static void Draw(Image image, float x, float y, Graphics g, TransformParams t, BoundingArea.ReadOnly boundingArea)
{
//#if !NO_PARTIAL_RENDERING
// 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));
// BoundingArea inflatedArea = boundingArea.GetWritableCopy();
// inflatedArea.Inflate(5f, 5f);
// // *** the following code is using relatively slow GDI+ clipping :-/
// GraphicsPath gPath = new GraphicsPath();
// foreach (RectangleF rect in inflatedArea.Rectangles)
// {
// gPath.AddRectangle(rect);
// }
// g.SetClip(gPath, CombineMode.Union);
// PixelOffsetMode pixelOffsetMode = g.PixelOffsetMode;
// g.PixelOffsetMode = PixelOffsetMode.Half;
// g.DrawImage(image, pos.X, pos.Y, width, height);
// g.ResetClip();
// g.PixelOffsetMode = pixelOffsetMode;
//#else
Draw(image, x, y, g, t);
//#endif
}
// ***********************
public void Draw(BoundingArea.ReadOnly bounding_area, params IDrawableObject[] drawable_objects)
{
Utils.ThrowException(bounding_area == null ? new ArgumentNullException("bounding_area") : null);
Utils.ThrowException(drawable_objects == null ? new ArgumentNullException("drawable_objects") : null);
DateTime start_time = DateTime.Now;
BoundingArea extended_area = bounding_area.GetWritableCopy();
ExtendBoundingArea(extended_area, drawable_objects);
#if !NO_BB_SIMPLIFICATION
extended_area.Optimize();
#endif
TransformParams tr = new TransformParams(0, 0, m_scale_factor);
Set <IDrawableObject> outdated_objects = new Set <IDrawableObject>(drawable_objects);
drawable_objects = m_drawable_object.GetObjectsIn(extended_area, tr);
Rectangle enclosing_rect = GetEnclosingRect(extended_area.BoundingBox);
BitmapInfo render_layer = PrepareBitmap(RENDER_LAYER, enclosing_rect.Width, enclosing_rect.Height);
TransformParams render_tr = new TransformParams(-enclosing_rect.X, -enclosing_rect.Y, m_scale_factor);
BoundingArea extended_area_tr = extended_area.Clone();
extended_area_tr.Transform(new TransformParams(-enclosing_rect.X, -enclosing_rect.Y, 1));
for (int i = drawable_objects.Length - 1; i >= 0; i--)
{
if (outdated_objects.Contains(drawable_objects[i]))
{
drawable_objects[i].Draw(render_layer.Graphics, render_tr);
}
else
{
drawable_objects[i].Draw(render_layer.Graphics, render_tr, extended_area_tr);
}
}
BitmapInfo main_layer = m_bmp_cache[MAIN_LAYER];
Graphics canvas_gfx = Graphics.FromHwnd(picBoxCanvas.Handle);
foreach (RectangleF rect in extended_area.Rectangles)
{
Rectangle view_area = GetEnclosingRect(rect);
view_area.X -= enclosing_rect.X;
view_area.Y -= enclosing_rect.Y;
view_area.Intersect(new Rectangle(0, 0, enclosing_rect.Width, enclosing_rect.Height));
EditableBitmap view = render_layer.EditableBitmap.CreateView(view_area);
main_layer.Graphics.DrawImageUnscaled(view.Bitmap, view_area.X + enclosing_rect.X, view_area.Y + enclosing_rect.Y);
// clipping to visible area?!?
canvas_gfx.DrawImageUnscaled(view.Bitmap, view_area.X + enclosing_rect.X, view_area.Y + enclosing_rect.Y);
//view_on_view.Dispose();
view.Dispose();
}
canvas_gfx.Dispose();
TimeSpan draw_time = DateTime.Now - start_time;
m_draw_time += draw_time;
m_draw_count++;
FpsInfo.Text = string.Format("{0:0.00} ms / draw", (double)m_draw_time.TotalMilliseconds / (double)m_draw_count);
m_draw_info.Add(draw_time.TotalMilliseconds);
FpsInfo.Refresh();
}
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 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 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 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 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 IDrawableObject[] GetObjectsIn(BoundingArea.ReadOnly bounding_area, TransformParams tr)
{
ArrayList <IDrawableObject> result = new ArrayList <IDrawableObject>();
for (int i = m_drawable_objects.Count - 1; i >= 0; i--)
{
result.AddRange(m_drawable_objects[i].GetObjectsIn(bounding_area, tr));
}
return(result.ToArray());
}
public void Draw(Graphics gfx, TransformParams tr, BoundingArea.ReadOnly bounding_area)
{
foreach (IDrawableObject drawable_object in m_drawable_objects)
{
if (drawable_object.GetBoundingArea(tr).IntersectsWith(bounding_area))
{
drawable_object.Draw(gfx, tr, bounding_area);
}
}
}
public void ExtendBoundingArea(BoundingArea bounding_area, params IDrawableObject[] drawable_objects)
{
Utils.ThrowException(bounding_area == null ? new ArgumentNullException("bounding_area") : null);
Utils.ThrowException(drawable_objects == null ? new ArgumentNullException("drawable_objects") : null);
TransformParams tr = new TransformParams(0, 0, m_scale_factor);
foreach (IDrawableObject drawable_object in drawable_objects)
{
bounding_area.AddRectangles(drawable_object.GetBoundingArea(tr).Rectangles);
}
}
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 BoundingArea GetBoundingArea(TransformParams tr)
{
BoundingArea bounding_area = new BoundingArea();
foreach (IDrawableObject drawable_object in m_drawable_objects)
{
bounding_area.AddRectangles(drawable_object.GetBoundingArea(tr).Rectangles);
}
// bounding_area.OptimizeArea();
return(bounding_area);
}
public virtual IDrawableObject[] GetObjectsIn(BoundingArea.ReadOnly area, TransformParams tr)
{
Utils.ThrowException(area == null ? new ArgumentNullException("area") : null);
Utils.ThrowException(tr == null ? new ArgumentNullException("tr") : null);
if (GetBoundingArea(tr).IntersectsWith(area))
{
return(new IDrawableObject[] { this });
}
else
{
return(new IDrawableObject[] { });
}
}
public virtual BoundingArea GetBoundingArea(TransformParams tr)
{
Utils.ThrowException(tr.NotSet ? new ArgumentValueException("tr") : null);
if (m_bounding_area == null)
{
m_bounding_area = GetBoundingArea();
}
BoundingArea bounding_area = m_bounding_area.Clone();
bounding_area.Transform(tr);
lock (m_pen) { bounding_area.Inflate(m_pen.Width / 2f + 5f, m_pen.Width / 2f + 5f); }
return(bounding_area);
}
public virtual BoundingArea GetBoundingArea(TransformParams tr)
{
Utils.ThrowException(tr == null ? new ArgumentNullException("tr") : null);
if (mBoundingArea == null)
{
mBoundingArea = GetBoundingArea();
}
BoundingArea boundingArea = mBoundingArea.Clone();
boundingArea.Transform(tr);
lock (mPen) { boundingArea.Inflate(mPen.Width / 2f + 5f, mPen.Width / 2f + 5f); }
return(boundingArea);
}
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;
}
// *** IDrawableObject interface implementation ***
public virtual IDrawableObject[] GetObjectsAt(float x, float y, TransformParams tr, ref float[] distArray)
{
Utils.ThrowException(tr == null ? new ArgumentNullException("tr") : null);
float dist = 0;
IDrawableObject drawableObject = GetObjectAt(x, y, tr, ref dist);
if (drawableObject != null)
{
distArray = new float[] { dist };
return(new IDrawableObject[] { drawableObject });
}
else
{
distArray = new float[] { };
return(new IDrawableObject[] { });
}
}
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);
}
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 IDrawableObject[] GetObjectsAt(float x, float y, TransformParams tr, ref float[] dist_array)
{
ArrayList <ObjectInfo> aux = new ArrayList <ObjectInfo>();
for (int i = m_drawable_objects.Count - 1; i >= 0; i--)
{
IDrawableObject[] objects_at_xy = m_drawable_objects[i].GetObjectsAt(x, y, tr, ref dist_array);
for (int j = 0; j < objects_at_xy.Length; j++)
{
aux.Add(new ObjectInfo(aux.Count, dist_array[j], objects_at_xy[j]));
}
}
aux.Sort();
IDrawableObject[] result = new IDrawableObject[aux.Count];
dist_array = new float[aux.Count];
int k = 0;
foreach (ObjectInfo object_info in aux)
{
result[k] = object_info.DrawableObject;
dist_array[k++] = object_info.Dist;
}
return(result);
}
private void DrawableObjectViewer_MouseMove(object sender, MouseEventArgs args)
{
const int WM_ACTIVATE = 0x0006;
if (m_drawable_object != null)
{
TransformParams tr = new TransformParams(0, 0, m_scale_factor);
float[] dist_array = null;
IDrawableObject[] new_target_objs = m_drawable_object.GetObjectsAt(args.X, args.Y, tr, ref dist_array);
Set <IDrawableObject> new_target_obj_set = new Set <IDrawableObject>(new_target_objs);
ArrayList <IDrawableObject> exit_objs = new ArrayList <IDrawableObject>();
ArrayList <IDrawableObject> enter_objs = new ArrayList <IDrawableObject>();
if (DrawableObjectMouseLeave != null || DrawableObjectToolTipRequest != null)
{
foreach (IDrawableObject obj in m_target_objs)
{
if (!new_target_obj_set.Contains(obj))
{
exit_objs.Add(obj);
}
}
}
if (DrawableObjectMouseEnter != null || DrawableObjectToolTipRequest != null)
{
foreach (IDrawableObject obj in new_target_objs)
{
if (!m_target_obj_set.Contains(obj))
{
enter_objs.Add(obj);
}
}
}
if (DrawableObjectMouseLeave != null && exit_objs.Count > 0)
{
DrawableObjectMouseLeave(this, new DrawableObjectEventArgs(args, exit_objs.ToArray()));
}
if (DrawableObjectMouseEnter != null && enter_objs.Count > 0)
{
DrawableObjectMouseEnter(this, new DrawableObjectEventArgs(args, enter_objs.ToArray()));
}
if (DrawableObjectToolTipRequest != null && (enter_objs.Count > 0 || exit_objs.Count > 0))
{
if (new_target_objs.Length > 0)
{
m_drawable_object_tip.SetToolTip(picBoxCanvas, null);
DrawableObjectEventArgs event_args = new DrawableObjectEventArgs(args, new_target_objs);
DrawableObjectToolTipRequest(this, event_args);
m_drawable_object_tip.SetToolTip(picBoxCanvas, event_args.ToolTipText);
SendMessage(picBoxCanvas.Handle, WM_ACTIVATE, 0, IntPtr.Zero); // *** I'm not sure why this is required but it is :)
}
else
{
m_drawable_object_tip.SetToolTip(picBoxCanvas, null);
}
}
m_target_obj_set = new_target_obj_set;
m_target_objs = new_target_objs;
}
if (m_target_objs.Length == 0)
{
if (CanvasMouseMove != null)
{
CanvasMouseMove(this, args);
}
}
else
{
if (DrawableObjectMouseMove != null)
{
DrawableObjectMouseMove(this, new DrawableObjectEventArgs(args, m_target_objs));
}
}
}
public override IDrawableObject GetObjectAt(float x, float y, TransformParams t, ref float dist)
{
return(IsObjectAt(x, y, t, mX1, mY1, mX2, mY2, ref dist) ? this : null); // throws ArgumentNullException
}
public override void Draw(Graphics g, TransformParams t, BoundingArea.ReadOnly boundingArea)
{
Draw(mX1, mY1, mX2, mY2, g, mPen, t, boundingArea); // throws ArgumentNullException
}
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);
}
// TODO: Image
public override void Draw(Graphics g, TransformParams t)
{
Draw(mImage, mX, mY, g, t); // throws ArgumentNullException
}
public override IDrawableObject GetObjectAt(float x, float y, TransformParams t, ref float dist)
{
dist = 0;
return(IsObjectAt(mImage, mX, mY, x, y, t) ? this : null); // throws ArgumentNullException
}
public override void Draw(Graphics g, TransformParams t, BoundingArea.ReadOnly boundingArea)
{
Draw(mImage, mX, mY, g, t, boundingArea); // throws ArgumentNullException
}