private void DrawCharGlyph(ref Vector2 vAtOriginal, float scale, ref Color currentColor, ref Vector2 vOrigin, ref float pxWidth, ref char cLast, ref Vector2 vAt, int line, char c)
{
MyGlyphInfo ginfo = m_glyphInfoByChar[c];
// If kerning is enabled, get the kern adjustment for this char pair
if (KernEnabled)
{
int pxKern = CalcKern(cLast, c);
vAt.X += pxKern * scale;
pxWidth += pxKern * scale;
cLast = c;
}
// This will fix vertical coordinate in case we use "gpad" - left/top blank space in every character
vAt.Y = vAtOriginal.Y + (ginfo.pxLeftSideBearing + MyRenderGuiConstants.FONT_TOP_SIDE_BEARING + line * LineHeight) * scale;
// Draw the glyph
vAt.X += ginfo.pxLeftSideBearing * scale;
if (ginfo.pxWidth != 0 && ginfo.pxHeight != 0)
{
Rectangle rSource = new Rectangle(ginfo.pxLocX, ginfo.pxLocY, ginfo.pxWidth, ginfo.pxHeight);
Color color = currentColor;
MySpritesRenderer.AddSingleSprite(m_bitmapTextureById[ginfo.nBitmapID], color, Vector2.Zero, Vector2.UnitX,
rSource, new RectangleF(vAt.X, vAt.Y, scale * rSource.Width, scale * rSource.Height));
}
// update the string width and advance the pen to the next drawing position
pxWidth += ginfo.pxAdvanceWidth * scale;
vAt.X += (ginfo.pxAdvanceWidth - ginfo.pxLeftSideBearing) * scale;
}
/// <summary>
/// Load the data from the "glyphs" node
/// </summary>
/// <param name="xnl">XML node list containing the "glyphs" node's children</param>
private void LoadFontXML_glyphs(XmlNodeList xnl)
{
foreach (XmlNode xn in xnl)
{
if (xn.Name == "glyph")
{
string strChar = GetXMLAttribute(xn, "ch");
string strBitmapID = GetXMLAttribute(xn, "bm");
string strLoc = GetXMLAttribute(xn, "loc");
string strSize = GetXMLAttribute(xn, "size");
string strAW = GetXMLAttribute(xn, "aw");
string strLSB = GetXMLAttribute(xn, "lsb");
if (strLoc == "")
{
strLoc = GetXMLAttribute(xn, "origin"); // obsolete - use loc instead
}
string[] aLoc = strLoc.Split(',');
string[] aSize = strSize.Split('x');
MyGlyphInfo ginfo = new MyGlyphInfo();
ginfo.nBitmapID = UInt16.Parse(strBitmapID);
ginfo.pxLocX = ushort.Parse(aLoc[0]);
ginfo.pxLocY = ushort.Parse(aLoc[1]);
ginfo.pxWidth = Byte.Parse(aSize[0]);
ginfo.pxHeight = Byte.Parse(aSize[1]);
ginfo.pxAdvanceWidth = Byte.Parse(strAW);
ginfo.pxLeftSideBearing = SByte.Parse(strLSB);
m_glyphInfoByChar[strChar[0]] = ginfo;
}
}
}
// Calculate the width of the given string.
// Returns: Width and height (in pixels) of the string
public Vector2 MeasureString(StringBuilder text, float scale)
{
try
{
scale *= MyRenderGuiConstants.FONT_SCALE;
float pxWidth = 0;
char cLast = '\0';
float maxPxWidth = 0;
int lines = 1;
for (int i = 0; i < text.Length; i++)
{
char c = text[i];
// New line
if (c == NEW_LINE)
{
lines++;
pxWidth = 0;
cLast = '\0';
continue;
}
if (!CanWriteOrReplace(ref c))
{
continue;
}
MyGlyphInfo ginfo = m_glyphInfoByChar[c];
// if kerning is enabled, get the kern adjustment for this char pair
if (KernEnabled)
{
pxWidth += CalcKern(cLast, c);
cLast = c;
}
// update the string width
pxWidth += ginfo.pxAdvanceWidth;
// Spacing
if (i < (text.Length - 1))
{
pxWidth += Spacing;
}
// Because new line
if (pxWidth > maxPxWidth)
{
maxPxWidth = pxWidth;
}
}
return(new Vector2(maxPxWidth * scale, lines * LineHeight * scale));
}
catch (System.IndexOutOfRangeException)
{
return(Vector2.Zero);
}
}
// Calculate the width of the given string.
// Returns: Width and height (in pixels) of the string
public Vector2 MeasureString(StringBuilder text, float scale)
{
scale *= MyGuiConstants.FONT_SCALE;
float pxWidth = 0;
char cLast = '\0';
float maxPxWidth = 0;
int lines = 1;
for (int i = 0; i < text.Length; i++)
{
char c = text[i];
// New line
if (c == NEW_LINE)
{
lines++;
pxWidth = 0;
cLast = '\0';
continue;
}
if (!m_dictUnicode2GlyphInfo.ContainsKey(c))
{
continue;
}
MyGlyphInfo ginfo = m_dictUnicode2GlyphInfo[c];
// if kerning is enabled, get the kern adjustment for this char pair
if (m_fKern)
{
pxWidth += CalcKern(cLast, c);
cLast = c;
}
// update the string width
pxWidth += ginfo.pxAdvanceWidth;
// Spacing
if (i < (text.Length - 1))
{
pxWidth += Spacing;
}
// Because new line
if (pxWidth > maxPxWidth)
{
maxPxWidth = pxWidth;
}
}
return(new Vector2(maxPxWidth * scale, lines * LineHeight * scale));
}
protected float ComputeScaledAdvanceWithKern(char c, char cLast, float scale)
{
MyGlyphInfo ginfo = m_glyphInfoByChar[c];
float advance = 0f;
if (KernEnabled)
{
int pxKern = CalcKern(cLast, c);
advance += pxKern * scale;
}
advance += ginfo.pxAdvanceWidth * scale;
return(advance);
}
public int ComputeCharsThatFit(StringBuilder text, float scale, float maxTextWidth)
{
scale *= MyRenderGuiConstants.FONT_SCALE;
maxTextWidth /= scale;
float pxWidth = 0;
char cLast = '\0';
for (int i = 0; i < text.Length; i++)
{
char c = text[i];
Debug.Assert(c != NEW_LINE);
if (!CanWriteOrReplace(ref c))
{
continue;
}
MyGlyphInfo ginfo = m_glyphInfoByChar[c];
// if kerning is enabled, get the kern adjustment for this char pair
if (KernEnabled)
{
pxWidth += CalcKern(cLast, c);
cLast = c;
}
// update the string width
pxWidth += ginfo.pxAdvanceWidth;
// Spacing
if (i < (text.Length - 1))
{
pxWidth += Spacing;
}
// Because new line
if (pxWidth > maxTextWidth)
{
return(i);
}
}
return(text.Length);
}
// Private version of DrawString that expects the string to be formatted already
// Returns: Width of string (in pixels)
float DrawString_internal(Vector2 vAtOriginal, Color cText, StringBuilder text, float scale)
{
scale *= MyGuiConstants.FONT_SCALE;
Color currentColor = cText;
Vector2 vOrigin = new Vector2(0, 0);
float pxWidth = 0;
char cLast = '\0';
Vector2 vAt = vAtOriginal;
float spacingScaled = Spacing * scale;
int line = 0;
// Draw each character in the string
for (int i = 0; i < text.Length; i++)
{
char c = text[i];
if (c == NEW_LINE)
{
vAt.X = vAtOriginal.X;
line++;
continue;
}
if (!m_dictUnicode2GlyphInfo.ContainsKey(c))
{
continue;
}
MyGlyphInfo ginfo = m_dictUnicode2GlyphInfo[c];
// If kerning is enabled, get the kern adjustment for this char pair
if (m_fKern)
{
int pxKern = CalcKern(cLast, c);
vAt.X += pxKern * scale;
pxWidth += pxKern * scale;
cLast = c;
}
// This will fix vertical coordinate in case we use "gpad" - left/top blank space in every character
vAt.Y = vAtOriginal.Y + (ginfo.pxLeftSideBearing + MyGuiConstants.FONT_TOP_SIDE_BEARING + line * LineHeight) * scale;
// Draw the glyph
vAt.X += ginfo.pxLeftSideBearing * scale;
if (ginfo.pxWidth != 0 && ginfo.pxHeight != 0)
{
Rectangle rSource = new Rectangle(ginfo.pxLocX, ginfo.pxLocY, ginfo.pxWidth, ginfo.pxHeight);
Color color = (((ginfo.nFlags & MyGlyphFlags.ForceWhite) != 0) ? Color.White : currentColor);
MyGuiManager.DrawSpriteBatch(m_dictBitmapID2Texture[ginfo.nBitmapID], vAt, rSource, color, 0.0f, vOrigin, scale, SpriteEffects.None, m_fpDepth);
}
// update the string width and advance the pen to the next drawing position
pxWidth += ginfo.pxAdvanceWidth * scale;
vAt.X += (ginfo.pxAdvanceWidth - ginfo.pxLeftSideBearing) * scale;
// Spacing
if (i < (text.Length - 1))
{
pxWidth += spacingScaled;
vAt.X += spacingScaled;
}
}
// Record final pen position and color
m_vPen = vAt;
m_color = cText;
return(pxWidth);
}
/// <summary>
/// Load the data from the "glyphs" node
/// </summary>
/// <param name="xnl">XML node list containing the "glyphs" node's children</param>
void LoadFontXML_glyphs(XmlNodeList xnl)
{
foreach (XmlNode xn in xnl)
{
if (xn.Name == "glyph")
{
string strChar = GetXMLAttribute(xn, "ch");
string strBitmapID = GetXMLAttribute(xn, "bm");
string strLoc = GetXMLAttribute(xn, "loc");
string strSize = GetXMLAttribute(xn, "size");
string strAW = GetXMLAttribute(xn, "aw");
string strLSB = GetXMLAttribute(xn, "lsb");
string strForceWhite = GetXMLAttribute(xn, "forcewhite");
if (strLoc == "")
strLoc = GetXMLAttribute(xn, "origin"); // obsolete - use loc instead
string[] aLoc = strLoc.Split(',');
string[] aSize = strSize.Split('x');
MyGlyphInfo ginfo = new MyGlyphInfo();
ginfo.nBitmapID = UInt16.Parse(strBitmapID);
ginfo.pxLocX = ushort.Parse(aLoc[0]);
ginfo.pxLocY = ushort.Parse(aLoc[1]);
ginfo.pxWidth = Byte.Parse(aSize[0]);
ginfo.pxHeight = Byte.Parse(aSize[1]);
ginfo.pxAdvanceWidth = Byte.Parse(strAW);
ginfo.pxLeftSideBearing = SByte.Parse(strLSB);
ginfo.nFlags = 0;
ginfo.nFlags |= (strForceWhite == "true" ? MyGlyphFlags.ForceWhite : MyGlyphFlags.None);
m_dictUnicode2GlyphInfo[strChar[0]] = ginfo;
}
}
}
