/// <summary>
/// Peels the top shape at a given point,
/// updates the render targets and puts the peeled shape to the stack of peelings.
/// Used to enable removing a child shape - eg. a top shape in a layer
/// </summary>
/// <param name="point"></param>
/// <param name="shapes"></param>
/// <returns></returns>
private DrawingShape PeelAtRecursive(Point2F point, IList <DrawingShape> shapes)
{
for (int i = shapes.Count - 1; i >= 0; i--)
{
if (shapes[i].HitTest(point))
{
if (shapes[i].ChildShapes == null)
{
string statName = shapes[i].GetType().Name.Replace("Shape", " count");
UpdateStats(statName, -1);
peelings.Push(shapes[i]);
shapes.RemoveAt(i);
RefreshAll();
return(peelings.Peek());
}
DrawingShape shapePeeled = PeelAtRecursive(point, shapes[i].ChildShapes);
if (shapePeeled == null)
{
string statName = shapes[i].GetType().Name.Replace("Shape", " count");
UpdateStats(statName, -1);
peelings.Push(shapes[i]);
shapes.RemoveAt(i);
RefreshAll();
return(peelings.Peek());
}
return(shapePeeled);
}
}
return(null);
}
/// <summary>
/// Renders the scene to the given render target.
/// Clears the scene, then draws all shapes
/// </summary>
/// <param name="renderTarget">The render target.</param>
private void RenderScene(RenderTarget renderTarget)
{
Cursor c = null;
if (renderMode != RenderModes.HwndRenderTarget)
{
c = Cursor;
Cursor = Cursors.WaitCursor;
}
renderTarget.BeginDraw();
renderTarget.Clear(BackColorF);
for (int i = 0; i < drawingShapes.Count; i++)
{
DrawingShape shape = drawingShapes[i];
//tag with shape index for debugging
renderTarget.Tags = new Tags((ulong)i, 0);
shape.Draw(renderTarget);
}
Tags tags;
ErrorCode errorCode;
if (!renderTarget.TryEndDraw(out tags, out errorCode))
{
Debug.WriteLine(String.Format("Failed EndDraw. Error: {0}, tag1: {1}, tag2: {2}, shape[{1}]: {3}",
errorCode, tags.Tag1, tags.Tag2,
(int)tags.Tag1 < drawingShapes.Count ? drawingShapes[(int)tags.Tag1].ToString() : "<none>"));
}
if (renderMode != RenderModes.HwndRenderTarget)
{
Cursor = c;
}
}
private void d2dShapesControl_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
DrawingShape shape = d2dShapesControl.PeelAt(new Point2F(e.Location.X, e.Location.Y));
if (shape != null)
{
RemoveFromTree(shape, treeViewAllShapes.Nodes);
}
}
treeViewShapesAtPoint.Nodes.Clear();
treeViewShapesAtPoint.Nodes.Add(d2dShapesControl.GetTreeAt(new Point2F(e.Location.X, e.Location.Y)));
treeViewShapesAtPoint.ExpandAll();
if (treeViewShapesAtPoint.Nodes.Count > 0)
{
TreeNode nodeToSelect = treeViewShapesAtPoint.Nodes[0];
while (nodeToSelect.Nodes.Count > 0)
{
nodeToSelect = nodeToSelect.Nodes[0];
}
treeViewShapesAtPoint.SelectedNode = nodeToSelect;
if (e.Button == MouseButtons.Left)
{
tabControl1.SelectedTab = tabPageShapes;
tabControl2.SelectedTab = tabPageShapesAtPoint;
treeViewShapesAtPoint.Focus();
}
}
}
/// <summary>
/// Adds a shape to compatible render target - avoids the need to redraw all shapes.
/// </summary>
/// <param name="shape">The shape.</param>
private void AddToCompatibleRenderTarget(DrawingShape shape)
{
lock (renderSyncObject)
{
bitmapRenderTarget.BeginDraw();
shape.Draw(bitmapRenderTarget);
bitmapRenderTarget.EndDraw();
}
}
private void buttonUnpeel_Click(object sender, System.EventArgs e)
{
DrawingShape shape = d2dShapesControl.UnpeelShape();
if (shape != null)
{
AddToTree(shape);
}
}
/// <summary>
/// Peels the specific shape.
/// </summary>
/// <param name="shape">The shape.</param>
internal void PeelShape(DrawingShape shape)
{
Debug.Assert(shape != null);
lock (renderSyncObject)
{
string statName = shape.GetType().Name.Replace("Shape", " count");
UpdateStats(statName, -1);
peelings.Push(shape);
PeelShape(shape, drawingShapes);
RefreshAll();
}
}
/// <summary>
/// Adds the shape to the list and updates the render targets.
/// </summary>
/// <param name="shape">The shape.</param>
/// <returns></returns>
private DrawingShape AddShape(DrawingShape shape)
{
lock (renderSyncObject)
{
drawingShapes.Add(shape);
string statName = shape.GetType().Name.Replace("Shape", " count");
UpdateStats(statName, 1);
if (UsingCompatibleRenderTarget)
{
AddToCompatibleRenderTarget(shape);
}
InvalidateClientRectangle();
return(shape);
}
}
/// <summary>
/// Peels the shape recursively.
/// </summary>
/// <param name="shape">The shape.</param>
/// <param name="shapes">The shapes.</param>
/// <returns></returns>
private static bool PeelShape(DrawingShape shape, ICollection <DrawingShape> shapes)
{
foreach (var s in shapes)
{
if (s == shape)
{
shapes.Remove(shape);
return(true);
}
if (s.ChildShapes != null && PeelShape(shape, s.ChildShapes))
{
return(true);
}
}
return(false);
}
/// <summary>
/// Remove shape from the tree node collection
/// </summary>
/// <param name="shape"></param>
/// <param name="treeNodes"></param>
/// <returns>true if removed</returns>
private static bool RemoveFromTree(DrawingShape shape, TreeNodeCollection treeNodes)
{
foreach (TreeNode node in treeNodes)
{
if (node.Tag == shape)
{
treeNodes.Remove(node);
return(true);
}
if (node.Nodes.Count > 0 && RemoveFromTree(shape, node.Nodes))
{
return(true);
}
}
return(false);
}
private static void AddToTreeRecursive(DrawingShape shape, TreeNodeCollection treeNodeCollection)
{
var node = new TreeNode(shape.ToString())
{
Tag = shape
};
node.Expand();
treeNodeCollection.Add(node);
if (shape.ChildShapes != null && shape.ChildShapes.Count > 0)
{
foreach (DrawingShape s in shape.ChildShapes)
{
AddToTreeRecursive(s, node.Nodes);
}
}
}
/// <summary>
/// Puts a shape from the stack of peelings back to the list of shapes and invalidates the render targets.
/// </summary>
/// <returns></returns>
internal DrawingShape UnpeelShape()
{
lock (renderSyncObject)
{
if (peelings.Count == 0)
{
return(null);
}
DrawingShape shape = peelings.Peek();
string statName = shape.GetType().Name.Replace("Shape", " count");
UpdateStats(statName, 1);
drawingShapes.Add(peelings.Pop());
if (UsingCompatibleRenderTarget)
{
AddToCompatibleRenderTarget(shape);
}
InvalidateClientRectangle();
return(shape);
}
}
/// <summary>
/// Remove shape from the tree node collection
/// </summary>
/// <param name="shape"></param>
/// <param name="treeNodes"></param>
/// <returns>true if removed</returns>
private static bool RemoveFromTree(DrawingShape shape, TreeNodeCollection treeNodes)
{
foreach (TreeNode node in treeNodes)
{
if (node.Tag == shape)
{
treeNodes.Remove(node);
return true;
}
if (node.Nodes.Count > 0 && RemoveFromTree(shape, node.Nodes))
return true;
}
return false;
}
private static void AddToTreeRecursive(DrawingShape shape, TreeNodeCollection treeNodeCollection)
{
var node = new TreeNode(shape.ToString()) { Tag = shape};
node.Expand();
treeNodeCollection.Add(node);
if (shape.ChildShapes != null && shape.ChildShapes.Count > 0)
foreach (DrawingShape s in shape.ChildShapes)
{
AddToTreeRecursive(s, node.Nodes);
}
}
private void AddToTree(DrawingShape shape)
{
AddToTreeRecursive(shape, treeViewAllShapes.Nodes);
}
/// <summary>
/// Adds the shape to the list and updates the render targets.
/// </summary>
/// <param name="shape">The shape.</param>
/// <returns></returns>
private DrawingShape AddShape(DrawingShape shape)
{
lock (renderSyncObject)
{
drawingShapes.Add(shape);
string statName = shape.GetType().Name.Replace("Shape", " count");
UpdateStats(statName, 1);
if (UsingCompatibleRenderTarget)
AddToCompatibleRenderTarget(shape);
InvalidateClientRectangle();
return shape;
}
}
/// <summary>
/// Peels the shape recursively.
/// </summary>
/// <param name="shape">The shape.</param>
/// <param name="shapes">The shapes.</param>
/// <returns></returns>
private static bool PeelShape(DrawingShape shape, ICollection<DrawingShape> shapes)
{
foreach (var s in shapes)
{
if (s == shape)
{
shapes.Remove(shape);
return true;
}
if (s.ChildShapes != null && PeelShape(shape, s.ChildShapes))
return true;
}
return false;
}
/// <summary>
/// Peels the specific shape.
/// </summary>
/// <param name="shape">The shape.</param>
internal void PeelShape(DrawingShape shape)
{
Debug.Assert(shape != null);
lock (renderSyncObject)
{
string statName = shape.GetType().Name.Replace("Shape", " count");
UpdateStats(statName, -1);
peelings.Push(shape);
PeelShape(shape, drawingShapes);
RefreshAll();
}
}
/// <summary>
/// Adds a shape to compatible render target - avoids the need to redraw all shapes.
/// </summary>
/// <param name="shape">The shape.</param>
private void AddToCompatibleRenderTarget(DrawingShape shape)
{
lock (renderSyncObject)
{
bitmapRenderTarget.BeginDraw();
shape.Draw(bitmapRenderTarget);
bitmapRenderTarget.EndDraw();
}
}
private void AddToTree(DrawingShape shape)
{
AddToTreeRecursive(shape, treeViewAllShapes.Nodes);
}
