public ClearTypeLetterGlyph GetClearTypeLetter(char ch, Color fontColor, Color bgColor)
{
lock (ColorGlyphs)
{
var key = new ColorGlyphKey(fontColor, bgColor, ch);
ClearTypeLetterGlyph glyph;
if (!ColorGlyphs.TryGetValue(key, out glyph))
{
glyph = ClearTypeLetterGlyph.CreateGlyph(GlyphTypeface, Font, EmSize, ch, fontColor, bgColor);
ColorGlyphs[key] = glyph;
}
return(glyph);
}
}
public static unsafe void DrawLetter(this BitmapContext context, int x0, int y0, IntRect cliprect, ClearTypeLetterGlyph glyph)
{
//if (glyph.Instructions == null) return;
if (glyph.Items == null)
{
return;
}
// Use refs for faster access (really important!) speeds up a lot!
var w = context.Width;
var h = context.Height;
var pixels = context.Pixels;
var xmin = cliprect.Left;
var ymin = cliprect.Top;
var xmax = cliprect.Right;
var ymax = cliprect.Bottom;
if (xmin < 0)
{
xmin = 0;
}
if (ymin < 0)
{
ymin = 0;
}
if (xmax >= w)
{
xmax = w - 1;
}
if (ymax >= h)
{
ymax = h - 1;
fixed(ClearTypeLetterGlyph.Item *items = glyph.Items)
{
var itemCount = glyph.Items.Length;
var currentItem = items;
//if (x0 >= xmin && y0 >= ymin && x0 + glyph.Width < xmax && y0 + glyph.Height < ymax)
//{
// for (int i = 0; i < itemCount; i++, currentItem++)
// {
// pixels[(y0 + currentItem->Y) * w + x0 + currentItem->X] = currentItem->Color;
// }
//}
//else
//{
for (var i = 0; i < itemCount; i++, currentItem++)
{
var x = x0 + currentItem->X;
var y = y0 + currentItem->Y;
var color = currentItem->Color;
if (x < xmin || y < ymin || x > xmax || y > ymax)
{
continue;
}
pixels[y * w + x] = color;
}
//}
}
//fixed (int *instructions = glyph.Instructions)
//{
// int* current = instructions;
// while (*current != -1)
// {
// int dy = *current++;
// int dx = *current++;
// int count0 = *current++;
// int y = y0 + dy;
// if (y >= ymin && y <= ymax)
// {
// int x = x0 + dx;
// int* dst = pixels + y*w + x;
// int* src = current;
// int count = count0;
// if (x < xmin)
// {
// int dmin = xmin - x;
// x += dmin;
// dst += dmin;
// src += dmin;
// count -= dmin;
// }
// if (x + count - 1 > xmax)
// {
// int dmax = x + count - 1 - xmax;
// count -= dmax;
// }
// if (count > 0)
// {
// NativeMethods.memcpy(dst, src, count * 4);
// //if (count < 10)
// //{
// // while (count > 0)
// // {
// // *dst++ = *src++;
// // count--;
// // }
// //}
// //else
// //{
// // NativeMethods.memcpy(dst, src, count*4);
// //}
// }
// }
// current += count0;
// }
//}
}
public static unsafe void DrawLetterVertical(this BitmapContext context, int x0, int y0, IntRect cliprect, ClearTypeLetterGlyph glyph)
{
//if (glyph.Instructions == null) return;
if (glyph.Items == null)
{
return;
}
// Use refs for faster access (really important!) speeds up a lot!
int w = context.Width;
int h = context.Height;
var pixels = context.Pixels;
int xmin = cliprect.Left;
int ymin = cliprect.Top;
int xmax = cliprect.Right;
int ymax = cliprect.Bottom;
if (xmin < 0)
{
xmin = 0;
}
if (ymin < 0)
{
ymin = 0;
}
if (xmax >= w)
{
xmax = w - 1;
}
if (ymax >= h)
{
ymax = h - 1;
fixed(ClearTypeLetterGlyph.Item *items = glyph.Items)
{
int itemCount = glyph.Items.Length;
ClearTypeLetterGlyph.Item *currentItem = items;
for (int i = 0; i < itemCount; i++, currentItem++)
{
int x = x0 + currentItem->Y;
int y = y0 - currentItem->X;
int color = currentItem->Color;
if (x < xmin || y < ymin || x > xmax || y > ymax)
{
continue;
}
pixels[y * w + x] = color;
}
//}
}
}
