// Methods
public TextOperation(MouseArea mc)
{
this.currrentText = null;
this.caretvisible = true;
this.selectionstart = 0;
this.selectionlength = 0;
this.hmargin = 5;
this.vmargin = 5;
this.doc = null;
this.activeText = null;
this.sf = StringFormat.GenericTypographic;
this.paint = Color.Black;
this.stroke = Color.Black;
this.font = new Font("Arial", 12f);
this.caretChar = null;
this.caretRect = RectangleF.Empty;
this.startindex = 0;
this.scale = 1f;
this.scaleMatrix = new Matrix();
this.mouseAreaControl = null;
this.editmode = false;
this.preText = null;
this.recordanim = true;
this.undostack = new UndoStack();
this.enterUpdate = false;
this.chars = new ArrayList(0x10);
this.caretindex = 0;
this.mouseAreaControl = mc;
mc.Focus();
this.caretthread = new Thread(new ThreadStart(this.CaretMethod));
this.caretthread.IsBackground = true;
this.caretthread.Start();
this.mouseAreaControl.Cursor = Cursors.IBeam;
this.mouseAreaControl.KeyPress += new KeyPressEventHandler(this.OnKeyPress);
this.sf.LineAlignment = StringAlignment.Near;
}
private void ParseText(Text text)
{
if (text != null)
{
if (this.chars == null)
{
this.chars = new ArrayList(0x10);
}
Color color1 = Color.Black;
Color color2 = Color.Black;
Font font1 = new Font("Arial", 20f);
StringFormat format1 = TextFunc.GetGDIStringFormat(text);
format1.LineAlignment = StringAlignment.Near;
FontFamily family1 = TextFunc.GetGDIFontFamily(text);
int num1 = TextFunc.GetGDIStyle(text);
font1 = new Font(family1.Name, text.Size, (FontStyle) num1);
float single1 = text.Dx;
float single2 = text.Dy;
ISvgBrush brush1 = text.GraphBrush;
if (brush1 is SolidColor)
{
color1 = ((SolidColor) brush1).Color;
}
bool flag1 = true;
this.doc.AcceptChanges = false;
for (int num2 = 0; num2 < text.ChildNodes.Count; num2++)
{
XmlNode node1 = text.ChildNodes[num2];
if (node1 is Text)
{
this.ParseText((Text) node1);
}
else if (node1 is XmlText)
{
string text1 = TextFunc.TrimText(node1.Value, text);
CharEnumerator enumerator1 = text1.GetEnumerator();
while (enumerator1.MoveNext())
{
char ch1 = enumerator1.Current;
XmlText text2 = this.doc.CreateTextNode(ch1.ToString());
ItopVector.DrawArea.CharInfo info1 = new ItopVector.DrawArea.CharInfo();
info1.TextNode = text2;
info1.TextSvgElement = text;
info1.Paint = color1;
info1.StringFormat = format1;
info1.StringFormat.LineAlignment = StringAlignment.Near;
info1.Font = font1;
if (flag1 && (text.ChildNodes[0] == node1))
{
info1.Dx = single1;
info1.Dy = single2;
info1.firstChild = true;
}
this.chars.Add(info1);
text.InsertBefore(text2, node1);
num2++;
}
text.RemoveChild(node1);
num2--;
}
}
}
}
private void PaintCaret(Graphics g)
{
if (((this.doc != null) && this.caretvisible) && (this.currrentText != null))
{
this.caretChar = null;
FontFamily family1 = this.font.FontFamily;
float single1 = (((float) family1.GetLineSpacing(FontStyle.Regular)) / ((float) family1.GetEmHeight(FontStyle.Regular))) * this.font.Size;
PointF tf1 = PointF.Empty;
if (this.chars.Count > 0)
{
if (this.caretindex >= this.chars.Count)
{
ItopVector.DrawArea.CharInfo info1 = (ItopVector.DrawArea.CharInfo) this.chars[this.chars.Count - 1];
tf1 = new PointF(info1.Position.X + info1.CharSize.Width, info1.Position.Y);
single1 = info1.CharSize.Height;
}
else
{
int num1 = Math.Max(0, Math.Min(this.caretindex, (int) (this.chars.Count - 1)));
ItopVector.DrawArea.CharInfo info2 = (ItopVector.DrawArea.CharInfo) this.chars[num1];
tf1 = info2.Position;
single1 = info2.CharSize.Height;
this.caretChar = info2;
}
}
this.caretRect = new RectangleF(tf1.X, tf1.Y, 1f, single1);
GraphicsPath path1=new GraphicsPath();
// Matrix matrix1=g.Transform.Clone();
// Matrix matrix2=new Matrix();
// matrix2.Translate(g.Transform.OffsetX,g.Transform.OffsetY);
// matrix1.Invert();
// matrix1.Translate(-matrix1.OffsetX,-matrix1.OffsetY);
path1.AddRectangle(caretRect);
// path1.Transform(matrix2);
GraphicsContainer container1=g.BeginContainer();
// g.Transform=matrix1;
g.FillPath(new SolidBrush(ControlPaint.Light(Color.Black)), path1);
g.EndContainer(container1);
}
}
private void InsertChar(char ch)
{
if (((this.doc != null) && (this.activeText != null)) && ((ch >= ' ') || (ch == '\t')))
{
ItopVector.DrawArea.CharInfo[] infoArray1 = this.RemoveSelection();
TextUndoOperation operation1 = null;
if (infoArray1 != null)
{
operation1 = new TextUndoOperation(TextAction.Delete, this.selectionstart, infoArray1, this);
}
bool flag1 = this.doc.AcceptChanges;
this.doc.AcceptChanges = false;
string text1 = ch.ToString();
XmlText text2 = this.doc.CreateTextNode(text1);
this.doc.AcceptChanges = false;
ItopVector.DrawArea.CharInfo info1 = new ItopVector.DrawArea.CharInfo();
info1.Font = this.font;
info1.TextSvgElement = this.activeText;
info1.TextNode = text2;
info1.StringFormat = this.sf;
info1.StringFormat.LineAlignment = StringAlignment.Near;
info1.Paint = this.paint;
info1.Stroke = this.stroke;
if (this.caretindex >= this.chars.Count)
{
this.activeText.AppendChild(text2);
this.chars.Add(info1);
}
else if ((this.caretindex >= 0) && (this.caretindex < this.chars.Count))
{
this.chars.Insert(this.caretindex, info1);
XmlNode node1 = this.activeText.ChildNodes[this.caretindex];
this.activeText.InsertBefore(text2, node1);
}
ItopVector.DrawArea.CharInfo[] infoArray2 = new ItopVector.DrawArea.CharInfo[1] { info1 } ;
TextUndoOperation operation2 = new TextUndoOperation(TextAction.Insert, this.chars.IndexOf(info1), infoArray2, this);
info1.PreSibling = info1.TextNode.PreviousSibling;
bool flag2 = this.undostack.AcceptChanges;
this.undostack.AcceptChanges = true;
if (operation1 != null)
{
TextUndoOperation[] operationArray1 = new TextUndoOperation[2] { operation1, operation2 } ;
this.undostack.Push(operationArray1);
}
else
{
TextUndoOperation[] operationArray2 = new TextUndoOperation[1] { operation2 } ;
this.undostack.Push(operationArray2);
}
this.undostack.AcceptChanges = flag2;
this.caretindex++;
this.mouseAreaControl.Invalidate();
this.doc.AcceptChanges = flag1;
}
}
private ItopVector.DrawArea.CharInfo[] RemoveSelection()
{
ArrayList list1 = new ArrayList(0x10);
if (this.doc == null)
{
return null;
}
bool flag1 = this.doc.AcceptChanges;
this.doc.AcceptChanges = false;
for (int num1 = this.selectionstart; num1 < (this.selectionstart + this.selectionlength); num1++)
{
if (this.selectionstart >= this.chars.Count)
{
break;
}
ItopVector.DrawArea.CharInfo info1 = (ItopVector.DrawArea.CharInfo) this.chars[this.selectionstart];
list1.Add(info1);
info1.TextSvgElement.RemoveChild(info1.TextNode);
this.chars.Remove(info1);
this.caretindex = this.selectionstart;
}
this.selectionlength = 0;
this.doc.AcceptChanges = flag1;
if (list1.Count == 0)
{
return null;
}
ItopVector.DrawArea.CharInfo[] infoArray1 = new ItopVector.DrawArea.CharInfo[list1.Count];
list1.CopyTo(infoArray1);
return infoArray1;
}
private void Remove(int index)
{
bool flag1 = this.doc.AcceptChanges;
this.doc.AcceptChanges = false;
if ((index >= 0) && (index < this.chars.Count))
{
ItopVector.DrawArea.CharInfo info1 = (ItopVector.DrawArea.CharInfo) this.chars[index];
XmlNode node1 = info1.TextNode.PreviousSibling;
info1.TextNode.ParentNode.RemoveChild(info1.TextNode);
if ((info1.firstChild && (info1.TextSvgElement != this.currrentText)) && (((info1.Dx != 0f) || (info1.Dy != 0f)) || ((info1.X != 0f) || (info1.Y != 0f))))
{
for (Text text1 = info1.TextSvgElement; text1 != this.currrentText; text1 = (Text) text1.ParentNode)
{
float single1;
float single2;
float single3;
text1.Y = single1 = 0f;
text1.X = single2 = single1;
text1.Dy = single3 = single2;
text1.Dx = single3;
if ((text1.Dx == info1.Dx) && (info1.Dy == info1.Dy))
{
break;
}
}
if ((index + 1) < this.chars.Count)
{
((ItopVector.DrawArea.CharInfo) this.chars[index + 1]).firstChild = true;
}
}
this.chars.Remove(info1);
ItopVector.DrawArea.CharInfo[] infoArray1 = new ItopVector.DrawArea.CharInfo[1] { info1 } ;
TextUndoOperation operation1 = new TextUndoOperation(TextAction.Delete, index, infoArray1, this);
info1.PreSibling = node1;
bool flag2 = this.undostack.AcceptChanges;
this.undostack.AcceptChanges = true;
TextUndoOperation[] operationArray1 = new TextUndoOperation[1] { operation1 } ;
this.undostack.Push(operationArray1);
this.undostack.AcceptChanges = flag2;
}
this.doc.AcceptChanges = flag1;
}