public EquationRow(EquationContainer parent)
: base(parent)
{
TextEquation textEq = new TextEquation(this);
ActiveChild = textEq;
AddChild(textEq);
CalculateSize();
}
public RowAction(ISupportsUndo executor, EquationBase equation, TextEquation equationAfter, int index, int caretIndex)
: base(executor)
{
Index = index;
Equation = equation;
CaretIndex = caretIndex;
EquationAfter = equationAfter;
}
public DecoratedCharacter(EquationContainer parent, TextEquation previous, CharacterDecorationType cdt, Position position, string sign)
: base(parent)
{
this.Previous = previous;
this.charFt = textManager.GetFormattedText(previous.Text[previous.CaretIndex - 1].ToString(), previous.GetFormats()[previous.CaretIndex - 1]);
previous.ConsumeKey(System.Windows.Input.Key.Back);
Height = FontSize;
decorations.Add(new CharacterDecorationInfo() { DecorationType = cdt, Position = position, UnicodeString = sign });
Width = charFt.Width;
}
public void Merge(TextEquation secondText)
{
SetCaretIndex(textData.Length);
foreach (var v in secondText.decorations)
{
v.Index = v.Index + textData.Length;
decorations.Add(v);
}
//secondText.decorations.Clear();
textData.Append(secondText.textData.ToString());
formats.AddRange(secondText.formats);
modes.AddRange(secondText.modes);
FormatText();
}
public override EquationBase Split(EquationContainer newParent)
{
TextEquation newText = new TextEquation(newParent);
int itemCount = textData.Length - caretIndex;
newText.textData.Append(textData.ToString(caretIndex, itemCount));
textData.Remove(caretIndex, itemCount);
newText.formats.AddRange(formats.GetRange(caretIndex, itemCount));
formats.RemoveRange(caretIndex, itemCount);
newText.modes.AddRange(modes.GetRange(caretIndex, itemCount));
modes.RemoveRange(caretIndex, itemCount);
var list = (from d in decorations where d.Index >= caretIndex select d).ToList();
foreach (var v in list)
{
decorations.Remove(v);
v.Index = v.Index - caretIndex;
newText.decorations.Add(v);
}
SetCaretIndex(textData.Length);
FormatText();
newText.FormatText();
return newText;
}
public override CopyDataObject Copy(bool removeSelection)
{
if (SelectedItems != 0)
{
int startIndex = SelectedItems > 0 ? SelectionStartIndex : SelectionStartIndex + SelectedItems;
int count = (SelectedItems > 0 ? SelectionStartIndex + SelectedItems : SelectionStartIndex) - startIndex;
string firstText = ((TextEquation)childEquations[startIndex]).GetSelectedText();
string lastText = ((TextEquation)childEquations[startIndex + count]).GetSelectedText();
int[] firstFormats = ((TextEquation)childEquations[startIndex]).GetSelectedFormats();
EditorMode[] firstModes = ((TextEquation)childEquations[startIndex]).GetSelectedModes();
CharacterDecorationInfo[] firstDecorations = ((TextEquation)childEquations[startIndex]).GetSelectedDecorations();
int[] lastFormats = ((TextEquation)childEquations[startIndex + count]).GetSelectedFormats();
EditorMode[] lastModes = ((TextEquation)childEquations[startIndex + count]).GetSelectedModes();
CharacterDecorationInfo[] lastDecorations = ((TextEquation)childEquations[startIndex + count]).GetSelectedDecorations();
TextEquation firstEquation = new TextEquation(this);
TextEquation lastEquation = new TextEquation(this);
firstEquation.ConsumeFormattedText(firstText, firstFormats, firstModes, firstDecorations, false);
lastEquation.ConsumeFormattedText(lastText, lastFormats, lastModes, lastDecorations, false);
List<EquationBase> equations = new List<EquationBase>();
equations.Add(firstEquation);
for (int i = startIndex + 1; i < startIndex + count; i++)
{
equations.Add(childEquations[i]);
}
equations.Add(lastEquation);
double left = 0;
foreach (EquationBase eb in equations)
{
eb.Left = 1 + left;
left += eb.Width;
}
double maxUpperHalf = 0;
double maxBottomHalf = 0;
foreach (EquationBase eb in childEquations)
{
if (eb.RefY > maxUpperHalf) { maxUpperHalf = eb.RefY; }
if (eb.Height - eb.RefY > maxBottomHalf) { maxBottomHalf = eb.Height - eb.RefY; }
}
double width = 0;
foreach (EquationBase eb in equations)
{
eb.Top = 1 + maxUpperHalf - eb.RefY;
width += eb.Width;
}
Rect rect = GetSelectionBounds();
RenderTargetBitmap bitmap = new RenderTargetBitmap((int)(Math.Ceiling(width + 2)), (int)(Math.Ceiling(maxUpperHalf + maxBottomHalf + 2)), 96, 96, PixelFormats.Default);
DrawingVisual dv = new DrawingVisual();
IsSelecting = false;
using (DrawingContext dc = dv.RenderOpen())
{
dc.DrawRectangle(Brushes.White, null, new Rect(0, 0, bitmap.Width, bitmap.Height));
foreach (EquationBase eb in equations)
{
eb.DrawEquation(dc);
}
}
IsSelecting = true;
bitmap.Render(dv);
XElement thisElement = new XElement(GetType().Name);
XElement children = new XElement("ChildEquations");
foreach (EquationBase eb in equations)
{
eb.SelectAll();
children.Add(eb.Serialize());
}
thisElement.Add(children);
//data.SetText(GetSelectedText());
foreach (EquationBase eb in equations)
{
eb.DeSelect();
}
Left = Left;
Top = Top;
if (removeSelection)
{
RemoveSelection(true);
}
return new CopyDataObject { Image = bitmap, Text = null, XElement = thisElement };
}
else
{
return base.Copy(removeSelection);
}
}
