// *********************** 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 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 }