public override Layout CreateLayout(Context Context, Rectangle SizeRange, out Point Size)
{
return new _Layout
{
Block = this,
Inner = this.Inner.CreateLayout(null, SizeRange, out Size),
Size = Size
};
}
public World(Context InputContext, Theme Theme)
{
this._Arcs = new List<Arc>();
this._Nodes = new List<Node>();
this._Theme = Theme;
InputContext.RegisterProbeSignalChange(this._ProbeSignalChange);
InputContext.RegisterUpdate(this._Update);
this._InputContext = InputContext;
}
public Node(Context WorldInputContext, Disposable<Content> Content, Block Block, Point Position, Point Velocity)
{
this._Content = Content;
this._Block = Block;
this._Position = Position;
this._Velocity = Velocity;
this._Layout = this._Block.Object.CreateLayout(null, SizeRange, out this._Size);
this._InputContext = new _NodeInputContext(this, WorldInputContext);
this._Layout.Link(this._InputContext);
}
public override Layout CreateLayout(Context Context, Rectangle SizeRange, out Point Size)
{
Compass<double> margin = this.Margin;
Point sizepadding = new Point(margin.Left + margin.Right, margin.Up + margin.Down);
Layout inner = this.Inner.CreateLayout(null, SizeRange.Translate(-sizepadding), out Size);
Size += sizepadding;
return new _Layout
{
Offset = new Point(margin.Left, margin.Up),
Inner = inner
};
}
public Node(Context WorldInputContext, Disposable<Content> Content, Block Block, Layout Layout, Point Size, Point Position, Point Velocity)
{
this._Content = Content;
this._Block = Block;
this._Position = Position;
this._Velocity = Velocity;
this._Layout = Layout;
this._Size = Size;
this._InputContext = new _NodeInputContext(this, WorldInputContext);
this._Layout.Link(this._InputContext);
}
public override Layout CreateLayout(Context Context, Rectangle SizeRange, out Point Size)
{
int cols = this.Columns;
int rows = this.Rows;
double sep = this.Seperator.Weight;
Rectangle contentsizerange = SizeRange.Translate(-new Point(sep * (cols - 1), sep * (rows - 1)));
// Create preliminary cell layouts to estimate sizes needed
Point maxcellsize = contentsizerange.BottomRight;
double[] widths = new double[cols];
double[] heights = new double[rows];
Layout[,] cells = new Layout[cols, rows];
for (int c = 0; c < cols; c++)
{
for (int r = 0; r < rows; r++)
{
Point size;
cells[c, r] = this.Cells[c, r].CreateLayout(null, new Rectangle(new Point(widths[c], heights[r]), maxcellsize), out size);
widths[c] = Math.Max(widths[c], size.X);
heights[r] = Math.Max(heights[r], size.Y);
}
}
_AdjustSizes(widths, contentsizerange.Left, contentsizerange.Right);
_AdjustSizes(heights, contentsizerange.Top, contentsizerange.Bottom);
// Adjust cells to have the new sizes
for (int c = 0; c < cols; c++)
{
double width = widths[c];
for (int r = 0; r < rows; r++)
{
double height = heights[r];
cells[c, r] = this.Cells[c, r].CreateLayout(null, new Point(width, height));
}
}
// Determine offsets
double totalwidth;
double totalheight;
double[] coloffsets = _GetOffsets(widths, sep, out totalwidth);
double[] rowoffsets = _GetOffsets(heights, sep, out totalheight);
Size = new Point(totalwidth, totalheight);
return new _Layout
{
Block = this,
Cells = cells,
ColumnOffsets = coloffsets,
RowOffsets = rowoffsets,
Size = Size
};
}
/// <summary> /// Creates a layout for this block with the preferred size within the given size range. /// </summary> public abstract Layout CreateLayout(Context Context, Rectangle SizeRange, out Point Size);
/// <summary>
/// Creates a layout for this block with the given size.
/// </summary>
public Layout CreateLayout(Context Context, Point Size)
{
return this.CreateLayout(Context, new Rectangle(Size, Size), out Size);
}
/// <summary>
/// Links this layout to an input context and returns a remove handler to later unlink it. Only one layout for each block may be linked
/// at one time.
/// </summary>
/// <remarks>The input context given is not restricted to the area of the layout, and may reference probes that are outside the layout.
/// The input context will give positions relative to the layout with (0.0, 0.0) being the top-left corner with ascending
/// positions going towards the bottom-right.</remarks>
public virtual RemoveHandler Link(Context Context)
{
return null;
}
public override Layout CreateLayout(Context Context, Rectangle SizeRange, out Point Size)
{
FlowBlockStyle style = this.Style;
Axis minoraxis = style.MinorAxis;
SizeRange.TopLeft = SizeRange.TopLeft.Shift(minoraxis);
SizeRange.BottomRight = SizeRange.BottomRight.Shift(minoraxis);
// Determine minor size
double minor = 0.0;
if (this.Fit == CompactFlowFit.Instance)
{
minor = SizeRange.Right;
}
else
{
if (SizeRange.Left == SizeRange.Right)
{
minor = SizeRange.Left;
}
else
{
double pmajor;
minor = this._PickMinor(SizeRange.Left, SizeRange.Right, out pmajor);
}
}
// Create lines
List<_PlannedLine> lines;
switch (style.WrapMode)
{
case FlowWrap.Greedy:
lines = _GetLinesGreedy(this.Items, minor, SizeRange.Right, style);
break;
default:
throw new NotImplementedException();
}
// Create a space layout if lines can not be created
if (lines == null)
{
Size = SizeRange.TopLeft;
return SpaceBlock.Layout;
}
// Get minimum minor size needed to display all lines (this becomes the new minor size).
double lminor = minor;
minor = SizeRange.Left;
foreach (_PlannedLine pl in lines)
{
double waste = lminor - pl.Length;
minor = Math.Max(minor, pl.Length);
}
// Build layout lines
double major;
List<_Layout.Line> layoutlines = _BuildLayout(lines, this.Items, style, minor, SizeRange.Top, out major);
// Create a space layout if the major size exceeds the size range
if (major > SizeRange.Bottom + Layout.ErrorThreshold)
{
Size = SizeRange.TopLeft;
return SpaceBlock.Layout;
}
// Create layout
Size = new Point(minor, major).Shift(style.MinorAxis);
return new _Layout
{
Block = this,
Lines = layoutlines
};
}
public TranslatedInputContext(Point Offset, Context Source)
{
this._Offset = Offset;
this._Source = Source;
}
public override RemoveHandler Link(Context Context)
{
// Update context and link information
this._Context = Context;
this.TextBlock._Linked = this;
RemoveHandler rh = delegate
{
this._Context = null;
this.TextBlock._Linked = null;
};
// Probe signal change handler for selection
rh += Context.RegisterProbeSignalChange(delegate(Probe Probe, ProbeSignal Signal, bool Value, ref bool Handled)
{
if (Signal == ProbeSignal.Primary && Value)
{
_SelectionInfo sel = this.TextBlock._Selection;
throw new NotImplementedException();
}
});
// Clean up context with remove handler
rh += delegate
{
if (this._ReleaseProbe != null)
{
this._ReleaseProbe();
}
if (this._RemoveUpdate != null)
{
this._RemoveUpdate();
}
if (this._RemoveProbeMessage != null)
{
this._RemoveProbeMessage();
}
};
return rh;
}
public override Layout CreateLayout(Context Context, Rectangle SizeRange, out Point Size)
{
TextBlockStyle style = this.Style;
Point cellsize = style.CellSize;
int minwidth = (int)(SizeRange.Left / cellsize.X);
int minheight = (int)(SizeRange.Top / cellsize.Y);
// Calculate width, height and line indices
List<int> lineindices = new List<int>();
int offset = 0;
int width = minwidth;
lineindices.Add(0); // Initial line, not explicitly indicated, but still deserves an index
_Measure(style, this.Text, 0, lineindices, ref offset, ref width);
int height = Math.Max(lineindices.Count, minheight);
// Calculate actual size
Size = new Point(width * cellsize.X, height * cellsize.Y);
Size.X = Math.Min(Size.X, SizeRange.Right);
Size.Y = Math.Min(Size.Y, SizeRange.Bottom);
_Layout layout = new _Layout
{
TextBlock = this,
Width = width,
Height = height,
LineIndices = lineindices
};
return layout;
}
public override RemoveHandler Link(Context Context)
{
return this.Inner.Link(Context);
}
public override Layout CreateLayout(Context Context, Rectangle SizeRange, out Point Size)
{
Size = SizeRange.TopLeft;
return _Layout.Instance;
}
public override RemoveHandler Link(Context Context)
{
double iw = -this.Block.Border.Weight;
return this.Inner.Link(Context.Translate(new Point(iw, iw)));
}
public _NodeInputContext(Node Node, Context Parent)
{
this._Node = Node;
this._Parent = Parent;
}
public override Layout CreateLayout(Context Context, Rectangle SizeRange, out Point Size)
{
Point sizepadding = this.SizePadding;
Layout inner = this.Inner.CreateLayout(null, SizeRange.Translate(-sizepadding), out Size);
Size += sizepadding;
return new _Layout
{
Block = this,
Inner = inner,
Size = Size
};
}
public override RemoveHandler Link(Context Context)
{
return this.Inner.Link(Context.Translate(-this.Offset));
}
public override Layout CreateLayout(Context Context, Rectangle SizeRange, out Point Size)
{
return this.Inner.CreateLayout(Context, this.GetLimitedSizeRange(SizeRange), out Size);
}
public override RemoveHandler Link(Context Context)
{
RemoveHandler rh = null;
for (int c = 0; c < this.ColumnOffsets.Length; c++)
{
double coff = this.ColumnOffsets[c];
for (int r = 0; r < this.RowOffsets.Length; r++)
{
double roff = this.RowOffsets[r];
rh += this.Cells[c, r].Link(Context.Translate(new Point(-coff, -roff)));
}
}
return rh;
}
