private void ShowEraseButton(IBlockView hit) { eraseButton.Location = new Point(hit.AbsolutePos().X, 2); eraseButton.Show(); }
public static Rectangle AbsoluteBounds(this IBlockView v) { return(new Rectangle(v.AbsolutePos(), v.Assemble().Size)); }
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(); } }