/// <summary>
/// Measure a string.
/// </summary>
/// <returns>The measurements.</returns>
/// <param name="text">Text.</param>
public Point MeasureString(string text)
{
// Skip empty strings
if (text == "")
{
return(Point.Empty);
}
// Get the codepoint iterator
var iter = new CodepointIterator(text);
// Initialize coordinates
float penX = 0, penY = 0;
// Iterate using the codepoint iterator
while (iter.Iterate())
{
// Get the current codepoint
var c = iter.Codepoint;
// Increment the y coords if the char is a linefeed
if (c == (uint)'\n')
{
penY += lineHeight;
penX = 0;
continue;
}
// Get the glyph
var glyph = GetGlyph(c);
if (glyph.Render)
{
penX += glyph.HorizontalAdvance;
penY += glyph.AdvanceY;
}
else
{
penX += glyph.AdvanceX;
penY += glyph.AdvanceY;
}
if (kerning && iter.Index < (iter.Count - 1))
{
var g2 = GetGlyph(iter.PeekNext());
FT.FT_Vector vec;
FT.FT_Get_Kerning(facePtr, glyph.CharIndex, g2.CharIndex, 2, out vec);
var krn = FTMath.From26Dot6(vec.x);
penX += krn;
}
}
penY = Math.Max(penY, LineHeight);
return(new Point((int)penX, (int)penY));
}
/// <summary>
/// Draw a string.
/// </summary>
/// <param name="spriteBatch">Sprite batch.</param>
/// <param name="text">Text.</param>
/// <param name="x">The x coordinate.</param>
/// <param name="y">The y coordinate.</param>
/// <param name="color">Color.</param>
public void DrawString(SpriteBatch spriteBatch, string text, int x, int y, Color4 color)
{
if (text == "") //Skip empty strings
{
return;
}
var iter = new CodepointIterator(text);
float penX = x, penY = y;
while (iter.Iterate())
{
uint c = iter.Codepoint;
if (c == (uint)'\n')
{
penY += lineHeight;
penX = x;
continue;
}
var glyph = GetGlyph(c);
if (glyph.Render)
{
spriteBatch.Draw(
glyph.Texture,
glyph.Rectangle,
new Rectangle(
(int)penX + glyph.XOffset,
(int)penY + (LineHeight - glyph.YOffset),
glyph.Rectangle.Width,
glyph.Rectangle.Height
),
color
);
penX += glyph.HorizontalAdvance;
penY += glyph.AdvanceY;
}
else
{
penX += glyph.AdvanceX;
penY += glyph.AdvanceY;
}
if (iter.Index < iter.Count - 1)
{
var g2 = GetGlyph(iter.PeekNext());
FT.FT_Vector vec;
FT.FT_Get_Kerning(facePtr, glyph.CharIndex, g2.CharIndex, 2, out vec);
var krn = FTMath.From26Dot6(vec.x);
penX += krn;
}
}
}
/// <summary>
/// Measure a string.
/// </summary>
/// <returns>The measurements.</returns>
/// <param name="text">Text.</param>
public Point MeasureString(string text)
{
// Skip empty strings
if (text == "")
return Point.Empty;
// Get the codepoint iterator
var iter = new CodepointIterator (text);
// Initialize coordinates
float penX = 0, penY = 0;
// Iterate using the codepoint iterator
while (iter.Iterate ()) {
// Get the current codepoint
var c = iter.Codepoint;
// Increment the y coords if the char is a linefeed
if (c == (uint) '\n') {
penY += lineHeight;
penX = 0;
continue;
}
// Get the glyph
var glyph = GetGlyph (c);
if (glyph.Render) {
penX += glyph.HorizontalAdvance;
penY += glyph.AdvanceY;
} else {
penX += glyph.AdvanceX;
penY += glyph.AdvanceY;
}
if (kerning && iter.Index < (iter.Count - 1)) {
var g2 = GetGlyph (iter.PeekNext ());
FT.FT_Vector vec;
FT.FT_Get_Kerning (facePtr, glyph.CharIndex, g2.CharIndex, 2, out vec);
var krn = FTMath.From26Dot6 (vec.x);
penX += krn;
}
}
penY = Math.Max (penY, LineHeight);
return new Point ((int) penX, (int) penY);
}
/// <summary>
/// Draw a string.
/// </summary>
/// <param name="spriteBatch">Sprite batch.</param>
/// <param name="text">Text.</param>
/// <param name="x">The x coordinate.</param>
/// <param name="y">The y coordinate.</param>
/// <param name="color">Color.</param>
public void DrawString(SpriteBatch spriteBatch, string text, int x, int y, Color4 color)
{
if (text == "") //Skip empty strings
return;
var iter = new CodepointIterator (text);
float penX = x, penY = y;
while (iter.Iterate ()) {
uint c = iter.Codepoint;
if (c == (uint) '\n') {
penY += lineHeight;
penX = x;
continue;
}
var glyph = GetGlyph (c);
if (glyph.Render) {
spriteBatch.Draw (
glyph.Texture,
glyph.Rectangle,
new Rectangle (
(int) penX + glyph.XOffset,
(int) penY + (LineHeight - glyph.YOffset),
glyph.Rectangle.Width,
glyph.Rectangle.Height
),
color
);
penX += glyph.HorizontalAdvance;
penY += glyph.AdvanceY;
} else {
penX += glyph.AdvanceX;
penY += glyph.AdvanceY;
}
if (iter.Index < iter.Count - 1) {
var g2 = GetGlyph (iter.PeekNext ());
FT.FT_Vector vec;
FT.FT_Get_Kerning (facePtr, glyph.CharIndex, g2.CharIndex, 2, out vec);
var krn = FTMath.From26Dot6 (vec.x);
penX += krn;
}
}
}
