internal DataType Typeof(IBlock block)
{
if (block is InvokationBlock)
{
InvokationBlock invokation = block as InvokationBlock;
return(blockInfos[invokation.Text].ReturnType);
}
else if (block is VarAccessBlock)
{
VarAccessBlock v = (VarAccessBlock)block;
return(v.Declaration.Type);
}
return(DataType.Script);
}
private IBlock ToVarAccess(JToken json)
{
string varName = json[1].ToString();
if (currentProcDef == null)
{
throw new InvalidOperationException(string.Format("Variable {0} used outside of proc definition", varName));
}
if (!currentProcDef.GetArgNames().Contains(varName))
{
throw new InvalidOperationException(string.Format("Variable {0} undefined", varName));
}
VarDefBlock vdb = currentProcDef.GetArg(varName);
VarAccessBlock b = new VarAccessBlock(vdb);
return(b);
}
internal void MouseDown(Point p)
{
if (state == CanvasState.TextEditing)
{
// Since the mousedown registered, we've clicked outside the textbox
ResetTextEditState();
}
else if (state == CanvasState.Ready)
{
if (canvasView.PaletteRect.Contains(p))
{
int x = canvasView.PaletteRect.Left;
int y = canvasView.PaletteRect.Top;
IBlock[] defaultArgs;
string funcName = palette.HitTest(p.Offseted(-x, -y), out defaultArgs);
if (funcName != "")
{
IBlock b = blockSpace.makeNewBlock(funcName,defaultArgs);
TopLevelScript s = AddTopLevel(b, p.Offseted(-5, -5));
dragged = blockViews[b];
draggingOrigin = p;
draggedModel = s;
state = CanvasState.Dragging;
PrepareDropRegions(b);
Update(ViewBounds(dragged));
return;
}
}
IBlockView hit = HitTest(p);
if (hit == null)
return;
if (!allViews.ContainsKey(hit))
{
if (hit.Model.ParentRelationship.Type == ParentRelationshipType.Stack)
{
int i = hit.Model.ParentRelationship.Index;
Point np = hit.AbsolutePos();
Rectangle bounds = ViewBounds(hit.AbsoluteAncestor());
BlockStack parent = (BlockStack)hit.Model.ParentRelationship.Parent;
TopLevelScript splitted = SplitBlockStack(parent, i, np);
Update(bounds);
draggedModel = splitted;
hit = blockViews[splitted.Block];
}
else if (hit.Model.ParentRelationship.Type == ParentRelationshipType.Arg)
{
if (hit is ITextualView)
{
// We shouldn't detach e.g a number argument from its block
// but we should enable the user to edit it
SetEditState((ITextualView) hit);
return;
}
int i = hit.Model.ParentRelationship.Index;
Point np = hit.AbsolutePos();
Rectangle bounds = ViewBounds(hit.AbsoluteAncestor());
InvokationBlock parent = (InvokationBlock)hit.Model.ParentRelationship.Parent;
TopLevelScript splitted = TakeoutBlockArgument(parent, i, np);
Update(bounds);
draggedModel = splitted;
hit = blockViews[splitted.Block];
}
else if (hit.Model.ParentRelationship.Type == ParentRelationshipType.FormalParameter)
{
ProcDefBlock pd = (ProcDefBlock ) hit.Model.ParentRelationship.Parent;
VarAccessBlock va = new VarAccessBlock((VarDefBlock)pd.Bits[hit.Model.ParentRelationship.Index]);
TopLevelScript tls = AddTopLevel(va, p);
hit = ViewFromBlock(va);
draggedModel = tls;
}
else if (hit.Model.ParentRelationship.Type == ParentRelationshipType.None)
{
hit = null;
draggedModel = null;
}
}
else
{
draggedModel = blockSpace.FindScript(hit.Model);
}
if (hit != null)
{
dragged = hit;
draggingOrigin = p;
state = CanvasState.Dragging;
PrepareDropRegions(hit.Model);
}
Update();
}
}
internal void MouseDown(Point p)
{
if (state == CanvasState.TextEditing)
{
// Since the mousedown registered, we've clicked outside the textbox
ResetTextEditState();
}
else if (state == CanvasState.Ready)
{
if (canvasView.PaletteRect.Contains(p))
{
int x = canvasView.PaletteRect.Left;
int y = canvasView.PaletteRect.Top;
IBlock[] defaultArgs;
string funcName = palette.HitTest(p.Offseted(-x, -y), out defaultArgs);
if (funcName != "")
{
IBlock b = blockSpace.makeNewBlock(funcName, defaultArgs);
TopLevelScript s = AddTopLevel(b, p.Offseted(-5, -5));
dragged = blockViews[b];
draggingOrigin = p;
draggedModel = s;
state = CanvasState.Dragging;
PrepareDropRegions(b);
Update(ViewBounds(dragged));
return;
}
}
IBlockView hit = HitTest(p);
if (hit == null)
{
return;
}
if (!allViews.ContainsKey(hit))
{
if (hit.Model.ParentRelationship.Type == ParentRelationshipType.Stack)
{
int i = hit.Model.ParentRelationship.Index;
Point np = hit.AbsolutePos();
Rectangle bounds = ViewBounds(hit.AbsoluteAncestor());
BlockStack parent = (BlockStack)hit.Model.ParentRelationship.Parent;
TopLevelScript splitted = SplitBlockStack(parent, i, np);
Update(bounds);
draggedModel = splitted;
hit = blockViews[splitted.Block];
}
else if (hit.Model.ParentRelationship.Type == ParentRelationshipType.Arg)
{
if (hit is ITextualView)
{
// We shouldn't detach e.g a number argument from its block
// but we should enable the user to edit it
SetEditState((ITextualView)hit);
return;
}
int i = hit.Model.ParentRelationship.Index;
Point np = hit.AbsolutePos();
Rectangle bounds = ViewBounds(hit.AbsoluteAncestor());
InvokationBlock parent = (InvokationBlock)hit.Model.ParentRelationship.Parent;
TopLevelScript splitted = TakeoutBlockArgument(parent, i, np);
Update(bounds);
draggedModel = splitted;
hit = blockViews[splitted.Block];
}
else if (hit.Model.ParentRelationship.Type == ParentRelationshipType.FormalParameter)
{
ProcDefBlock pd = (ProcDefBlock )hit.Model.ParentRelationship.Parent;
VarAccessBlock va = new VarAccessBlock((VarDefBlock)pd.Bits[hit.Model.ParentRelationship.Index]);
TopLevelScript tls = AddTopLevel(va, p);
hit = ViewFromBlock(va);
draggedModel = tls;
}
else if (hit.Model.ParentRelationship.Type == ParentRelationshipType.None)
{
hit = null;
draggedModel = null;
}
}
else
{
draggedModel = blockSpace.FindScript(hit.Model);
}
if (hit != null)
{
dragged = hit;
draggingOrigin = p;
state = CanvasState.Dragging;
PrepareDropRegions(hit.Model);
}
Update();
}
}
private IBlock ToVarAccess(JToken json)
{
string varName = json[1].ToString();
if (currentProcDef == null)
throw new InvalidOperationException(string.Format("Variable {0} used outside of proc definition", varName));
if (!currentProcDef.GetArgNames().Contains(varName))
throw new InvalidOperationException(string.Format("Variable {0} undefined", varName));
VarDefBlock vdb = currentProcDef.GetArg(varName);
VarAccessBlock b = new VarAccessBlock(vdb);
return b;
}