| public MeasureString ( string text ) : Vector2 | ||
| text | string | |
| return | Vector2 | |
public static void CalculateLines(List <UITextEditLine> m_Lines, List <string> newWordsArray, TextStyle TextStyle, float lineWidth, float spaceWidth, Vector2 topLeftIconSpace, float lineHeight)
{
var currentLine = new StringBuilder();
var currentLineWidth = 0.0f;
var currentLineNum = 0;
for (var i = 0; i < newWordsArray.Count; i++)
{
var allowedWidth = (currentLineNum * lineHeight < topLeftIconSpace.Y)?lineWidth - topLeftIconSpace.X:lineWidth;
var word = newWordsArray[i];
if (word == "\r\n")
{
/** Line break **/
m_Lines.Add(new UITextEditLine
{
Text = currentLine.ToString(),
LineWidth = currentLineWidth,
LineNumber = currentLineNum,
WhitespaceSuffix = 2
});
currentLineNum++;
currentLine = new StringBuilder();
currentLineWidth = 0;
}
else
{
bool wordWritten = false;
while (!wordWritten) //repeat until the full word is written (as part of it can be written each pass if it is too long)
{
var wordSize = TextStyle.MeasureString(word);
if (wordSize.X > allowedWidth)
{
//SPECIAL CASE, word is bigger than line width and cannot fit on its own line
if (currentLineWidth > 0)
{
//if there are words on this line, we'll start this one on the next to get the most space for it
m_Lines.Add(new UITextEditLine
{
Text = currentLine.ToString(),
LineWidth = currentLineWidth,
LineNumber = currentLineNum
});
currentLineNum++;
currentLine = new StringBuilder();
currentLineWidth = 0;
}
// binary search, makes this a bit faster?
// we can safely say that no character is thinner than 4px, so set max substring to maxwidth/4
float width = allowedWidth + 1;
int min = 1;
int max = Math.Min(word.Length, (int)allowedWidth / 4);
int mid = (min + max) / 2;
while (max - min > 1)
{
width = TextStyle.MeasureString(word.Substring(0, mid)).X;
if (width > allowedWidth)
{
max = mid;
}
else
{
min = mid;
}
mid = (max + min) / 2;
}
currentLine.Append(word.Substring(0, min));
currentLineWidth += width;
word = word.Substring(min);
m_Lines.Add(new UITextEditLine
{
Text = currentLine.ToString(),
LineWidth = currentLineWidth,
LineNumber = currentLineNum,
WhitespaceSuffix = 1
});
currentLineNum++;
currentLine = new StringBuilder();
currentLineWidth = 0;
}
else if (currentLineWidth + wordSize.X < allowedWidth)
{
currentLine.Append(word);
if (i != newWordsArray.Count - 1)
{
currentLine.Append(' '); currentLineWidth += spaceWidth;
}
currentLineWidth += wordSize.X;
wordWritten = true;
}
else
{
/** New line **/
m_Lines.Add(new UITextEditLine
{
Text = currentLine.ToString(),
LineWidth = currentLineWidth,
LineNumber = currentLineNum,
WhitespaceSuffix = 1
});
currentLineNum++;
currentLine = new StringBuilder();
currentLine.Append(word);
currentLineWidth = wordSize.X;
if (i != newWordsArray.Count - 1)
{
currentLine.Append(' '); currentLineWidth += spaceWidth;
}
wordWritten = true;
}
}
}
}
m_Lines.Add(new UITextEditLine //add even if length is 0, so we can move the cursor down!
{
Text = currentLine.ToString(),
LineWidth = currentLineWidth,
LineNumber = currentLineNum
});
var currentIndex = 0;
foreach (var line in m_Lines)
{
line.StartIndex = currentIndex;
currentIndex += (line.Text.Length - 1) + line.WhitespaceSuffix;
}
}
/// <summary>
/// This utility will draw a line of text onto the UIElement.
/// </summary>
/// <param name="batch">The SpriteBatch to draw the text onto</param>
/// <param name="text">The content of the text</param>
/// <param name="to">The position of the text. Relative to this UIElement.</param>
/// <param name="style">The text style</param>
/// <param name="bounds">Rectangle relative to this UIElement which the text should be positioned within</param>
/// <param name="align">Alignment of the text within the bounds box.</param>
/// <param name="margin">Margin offset from the bounding box.</param>
/// <param name="state">State of the text, e.g. hover, down, normal</param>
public void DrawLocalString(SpriteBatch batch, string text, Vector2 to, TextStyle style, Rectangle bounds, TextAlignment align, Rectangle margin, UIElementState state)
{
//TODO: We should find some way to cache this data
/**
* Work out the scale of the vector font.
*
* We need to scale it based on the UIElement's scale factory,
* but we also need to scale it based on the text styles scale factor.
*
* Aka if the vector font is 12px and we asked for 24px it would be scale of 2.0
*/
var scale = _Scale;
if (style.Scale != 1.0f)
{
scale = new Vector2(scale.X * style.Scale, scale.Y * style.Scale);
}
/** Work out how big the text will be so we can align it **/
var size = (align == 0) ? Vector2.Zero : style.MeasureString(text);
/** Apply margins **/
if (margin != Rectangle.Empty)
{
bounds.X += margin.X;
bounds.Y += margin.Y;
bounds.Width -= margin.Right;
bounds.Height -= margin.Bottom;
}
/** Work out X and Y based on alignment & bounding box **/
var pos = to;
pos.X += bounds.X;
pos.Y += bounds.Y;
if ((align & TextAlignment.Right) == TextAlignment.Right)
{
pos.X += (bounds.Width - size.X);
}
else if ((align & TextAlignment.Center) == TextAlignment.Center)
{
pos.X += (bounds.Width - size.X) / 2;
}
if ((align & TextAlignment.Middle) == TextAlignment.Middle)
{
pos.Y += (bounds.Height - size.Y) / 2;
}
else if ((align & TextAlignment.Bottom) == TextAlignment.Bottom)
{
pos.Y += (bounds.Height - size.Y);
}
//pos.Y += style.BaselineOffset;
/** Draw the string **/
pos = FlooredLocalPoint(pos);
if (style.VFont != null)
{
batch.End();
Matrix?mat = null;
var ui = (batch as UISpriteBatch);
if (ui != null && ui.BatchMatrixStack.Count > 0)
{
mat = ui.BatchMatrixStack.Peek();
}
if (style.Shadow)
{
style.VFont.Draw(batch.GraphicsDevice, text, pos + new Vector2(FSOEnvironment.DPIScaleFactor), Color.Black, scale, mat);
}
style.VFont.Draw(batch.GraphicsDevice, text, pos, style.GetColor(state) * Opacity, scale, mat);
if (mat != null)
{
batch.Begin(transformMatrix: mat, rasterizerState: RasterizerState.CullNone);
}
else
{
batch.Begin(rasterizerState: RasterizerState.CullNone);
}
}
else
{
if (style.Shadow)
{
batch.DrawString(style.SpriteFont, text, pos + new Vector2(FSOEnvironment.DPIScaleFactor), Color.Black, 0, Vector2.Zero, scale, SpriteEffects.None, 0);
}
batch.DrawString(style.SpriteFont, text, pos, style.GetColor(state) * Opacity, 0, Vector2.Zero, scale, SpriteEffects.None, 0);
}
}
public static void CalculateLines(List<UITextEditLine> m_Lines, List<string> newWordsArray, TextStyle TextStyle, float lineWidth, float spaceWidth, Vector2 topLeftIconSpace, float lineHeight)
{
var currentLine = new StringBuilder();
var currentLineWidth = 0.0f;
var currentLineNum = 0;
for (var i = 0; i < newWordsArray.Count; i++)
{
var allowedWidth = (currentLineNum*lineHeight<topLeftIconSpace.Y)?lineWidth-topLeftIconSpace.X:lineWidth;
var word = newWordsArray[i];
if (word == "\r\n")
{
/** Line break **/
m_Lines.Add(new UITextEditLine
{
Text = currentLine.ToString(),
LineWidth = currentLineWidth,
LineNumber = currentLineNum,
WhitespaceSuffix = 2
});
currentLineNum++;
currentLine = new StringBuilder();
currentLineWidth = 0;
}
else
{
bool wordWritten = false;
while (!wordWritten) //repeat until the full word is written (as part of it can be written each pass if it is too long)
{
var wordSize = TextStyle.MeasureString(word);
if (wordSize.X > allowedWidth)
{
//SPECIAL CASE, word is bigger than line width and cannot fit on its own line
if (currentLineWidth > 0)
{
//if there are words on this line, we'll start this one on the next to get the most space for it
m_Lines.Add(new UITextEditLine
{
Text = currentLine.ToString(),
LineWidth = currentLineWidth,
LineNumber = currentLineNum
});
currentLineNum++;
currentLine = new StringBuilder();
currentLineWidth = 0;
}
float width = allowedWidth + 1;
int j = word.Length;
while (width > allowedWidth)
{
width = TextStyle.MeasureString(word.Substring(0, --j)).X;
}
currentLine.Append(word.Substring(0, j));
currentLineWidth += width;
word = word.Substring(j);
m_Lines.Add(new UITextEditLine
{
Text = currentLine.ToString(),
LineWidth = currentLineWidth,
LineNumber = currentLineNum,
WhitespaceSuffix = 1
});
currentLineNum++;
currentLine = new StringBuilder();
currentLineWidth = 0;
}
else if (currentLineWidth + wordSize.X < allowedWidth)
{
currentLine.Append(word);
if (i != newWordsArray.Count - 1) { currentLine.Append(' '); currentLineWidth += spaceWidth; }
currentLineWidth += wordSize.X;
wordWritten = true;
}
else
{
/** New line **/
m_Lines.Add(new UITextEditLine
{
Text = currentLine.ToString(),
LineWidth = currentLineWidth,
LineNumber = currentLineNum,
WhitespaceSuffix = 1
});
currentLineNum++;
currentLine = new StringBuilder();
currentLine.Append(word);
currentLineWidth = wordSize.X;
if (i != newWordsArray.Count - 1) { currentLine.Append(' '); currentLineWidth += spaceWidth; }
wordWritten = true;
}
}
}
}
m_Lines.Add(new UITextEditLine //add even if length is 0, so we can move the cursor down!
{
Text = currentLine.ToString(),
LineWidth = currentLineWidth,
LineNumber = currentLineNum
});
var currentIndex = 0;
foreach (var line in m_Lines)
{
line.StartIndex = currentIndex;
currentIndex += (line.Text.Length - 1) + line.WhitespaceSuffix;
}
}
