/// <summary>
/// Updates the size.
/// </summary>
private void UpdateSize()
{
if (!this.isInitialized)
{
return;
}
this.LinesInfo.Clear();
if (!string.IsNullOrEmpty(this.text) && this.SpriteFont != null)
{
this.FontHeight = this.SpriteFont.MeasureString("A").Y;
if (!this.RichTextEnabled)
{
if (this.textWrapping)
{
// Filters
this.text = this.text.Replace("\r\n", " /n ");
this.text = this.text.Replace("\n", " /n ");
this.text = this.text.Replace("/n", " /n ");
string[] words = this.text.Split(' ');
var stringBuilder = new StringBuilder();
int i = 0;
while (i < words.Length)
{
do
{
if (words[i].Equals("/n"))
{
i++;
break;
}
string nextString = string.Format("{0}{1} ", stringBuilder, words[i]);
float lineSize = this.SpriteFont.MeasureString(nextString).X;
if (stringBuilder.Length != 0 && lineSize > this.Width)
{
break;
}
stringBuilder.Append(words[i]);
stringBuilder.Append(" ");
i++;
}
while (i < words.Length);
string text = stringBuilder.ToString();
Vector2 size = this.SpriteFont.MeasureString(text);
float offsetX = this.CalculateAlignmentOffset(size);
this.LinesInfo.Add(new LineInfo(text, this.Foreground, size, offsetX));
stringBuilder.Length = 0;
}
this.Height = this.LinesInfo.Count * (this.FontHeight + this.lineSpacing);
}
else
{
Vector2 size = this.SpriteFont.MeasureString(this.text);
float offsetX = this.CalculateAlignmentOffset(size);
this.LinesInfo.Add(new LineInfo(this.text, this.Foreground, size, offsetX));
if (this.lineWidth != -1)
{
base.Width = this.lineWidth;
}
else
{
base.Width = size.X;
}
this.Height = size.Y;
}
}
else
{
if (this.textWrapping)
{
// Filters
this.text = this.text.Replace("\r\n", " /n ");
this.text = this.text.Replace("\n", " /n ");
this.text = this.text.Replace("/n", " /n ");
}
else
{
base.Width = 0;
}
XDocument document = XDocument.Parse("<p>" + this.text + "</p>");
float acumulatedSize = 0;
int lineInfoId = 0;
this.LinesInfo.Add(new LineInfo(0));
XNode child = document.Root.FirstNode;
while (child != null)
{
Vector2 size;
Color color;
string textValue;
switch (child.NodeType)
{
case XmlNodeType.Element:
XElement element = child as XElement;
if (element.Name == "rtf" && element.Attribute("Foreground") != null)
{
// Sets foreground
var colorAttribute = element.Attribute("Foreground");
color = new Color(colorAttribute.Value);
}
else
{
color = this.Foreground;
}
textValue = element.Value;
break;
case XmlNodeType.Text:
color = this.Foreground;
XText xText = child as XText;
textValue = xText.Value;
break;
default:
color = this.Foreground;
textValue = string.Empty;
break;
}
string[] textFragments;
if (!this.textWrapping)
{
textFragments = textValue.Split('\n');
}
else
{
textFragments = textValue.Split(' ');
}
var stringBuilder = new StringBuilder();
int i = 0;
while (i < textFragments.Length)
{
if (this.textWrapping)
{
stringBuilder.Clear();
do
{
if (textFragments[i].Equals("/n"))
{
i++;
break;
}
string currentFragment = textFragments[i].Trim();
if (currentFragment == string.Empty)
{
i++;
continue;
}
string nextString = string.Format("{0}{1} ", stringBuilder, currentFragment);
float lineSize = this.SpriteFont.MeasureString(nextString).X + acumulatedSize;
if (stringBuilder.Length != 0 && lineSize > this.Width)
{
break;
}
stringBuilder.Append(currentFragment);
i++;
stringBuilder.Append(" ");
}
while (i < textFragments.Length);
}
else
{
stringBuilder.Clear();
stringBuilder.Append(textFragments[i]);
i++;
}
size = this.SpriteFont.MeasureString(stringBuilder.ToString());
LineInfo lineInfo = this.LinesInfo[lineInfoId];
lineInfo.AddText(stringBuilder.ToString(), color, size);
this.LinesInfo[lineInfoId] = lineInfo;
acumulatedSize += size.X;
if (!this.textWrapping)
{
base.Width = MathHelper.Max(acumulatedSize, this.Width);
}
if (textFragments.Length > 1 && i < textFragments.Length)
{
this.LinesInfo.Add(new LineInfo(0));
lineInfoId++;
acumulatedSize = 0;
}
}
child = child.NextNode;
}
////Debug.WriteLine("{");
float height = 0;
for (int i = 0; i < this.LinesInfo.Count; i++)
{
LineInfo info = this.LinesInfo[i];
info.AlignmentOffsetX = this.CalculateAlignmentOffset(info.Size);
this.LinesInfo[i] = info;
height += info.Size.Y;
////Debug.WriteLine(string.Format("\tLineInfo [Size: {0} Offset: {1}]", info.Size, info.AlignmentOffsetX));
////foreach (var fragment in info.SubTextList)
////{
//// Debug.WriteLine(string.Format("\t\tFragment [Size: {0} Text: \"{1}\"]", fragment.Size, fragment.Text));
////}
}
////Debug.WriteLine("}");
this.Height = height + (this.LineSpacing * this.LinesInfo.Count);
if (this.Owner != null && this.Owner.Parent != null)
{
this.Arrange(this.Owner.Parent.FindComponent<Transform2D>().Rectangle);
}
}
// Event
if (this.OnWidthChanged != null)
{
this.OnWidthChanged(this, this.Width);
}
}
}
/// <summary>
/// Handles the TouchPressed event of the Gestures control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="GestureEventArgs" /> instance containing the event data.</param>
private void Gestures_TouchPressed(object sender, GestureEventArgs e)
{
this.IsFocus = true;
if (this.isReadOnly)
{
return;
}
if (this.inputService.KeyboardState.IsConnected)
{
float clickX = e.GestureSample.Position.X - this.Transform.Rectangle.X;
float clickY = e.GestureSample.Position.Y - this.Transform.Rectangle.Y;
// Cursor position Y
float posY = this.textControl.LineSpacing;
int lineIndex = 0;
while (lineIndex < this.textControl.LinesInfo.Count - 1 &&
posY + this.textControl.FontHeight < clickY)
{
posY += this.textControl.FontHeight + this.textControl.LineSpacing;
lineIndex++;
}
// Cursor position X
float posX = 0;
if (this.textControl.LinesInfo.Count > 0)
{
LineInfo lineInfo = this.textControl.LinesInfo[lineIndex];
if (posY + this.textControl.FontHeight < clickY)
{
// Outside of textControl
posX = lineInfo.AlignmentOffsetX + lineInfo.Size.X;
this.textBeforeCursor = this.textControl.Text;
this.textAfterCursor = string.Empty;
}
else
{
// Search X position
posX = lineInfo.AlignmentOffsetX;
float maxOffsetX = lineInfo.AlignmentOffsetX + lineInfo.Size.X;
int characterIndex = 0;
string currentLineText = lineInfo.SubTextList[0].Text;
float characterOffset = this.textControl.SpriteFont.MeasureString(currentLineText[characterIndex].ToString()).X;
while (posX <= maxOffsetX &&
posX + (characterOffset / 2) < clickX)
{
posX += characterOffset;
if (characterIndex < currentLineText.Length - 1)
{
characterIndex++;
characterOffset = this.textControl.SpriteFont.MeasureString(currentLineText[characterIndex].ToString()).X;
}
else
{
break;
}
}
// Text before cursor
List <LineInfo> linesInfo = this.textControl.LinesInfo;
this.textBeforeCursor = string.Empty;
for (int i = 0; i < lineIndex; i++)
{
this.textBeforeCursor += this.textControl.LinesInfo[i].SubTextList[0].Text;
}
this.textBeforeCursor += currentLineText.Substring(0, characterIndex);
// Text After cursor
this.textAfterCursor = currentLineText.Substring(characterIndex);
for (int i = lineIndex + 1; i < this.textControl.LinesInfo.Count; i++)
{
this.textAfterCursor += this.textControl.LinesInfo[i].SubTextList[0].Text;
}
}
}
// Final positions
this.cursorTransform.X = posX;
this.cursorTransform.Y = posY;
this.cursorAnimation.BeginAnimation(Transform2D.OpacityProperty, this.flicker);
}
else
{
this.ShowScreenKeyboard();
}
}