// draw string with transparent background
public static void DrawString(int x, int y, string text, VGAColor fg, VGAFont font)
{
// determine font size
fontHeight = 8;
if (font == VGAFont.Font8x8)
{
fontHeight = 8;
}
else if (font == VGAFont.Font8x16)
{
fontHeight = 16;
}
int xx = x, yy = y;
for (int i = 0; i < text.Length; i++)
{
// new line
if (text[i] == '\n')
{
xx = x; yy += fontHeight;
}
// character
else
{
DrawChar(xx, yy, text[i], fg, font); xx += 8;
}
}
}
// draw character with background color
public static void DrawChar(int x, int y, char c, VGAColor fg, VGAColor bg, VGAFont font)
{
// determine font size
fontHeight = 8;
if (font == VGAFont.Font8x8)
{
fontHeight = 8;
}
else if (font == VGAFont.Font8x16)
{
fontHeight = 16;
}
int p = fontHeight * (byte)c;
// vertical
for (int cy = 0; cy < fontHeight; cy++)
{
// horizontal
for (byte cx = 0; cx < 8; cx++)
{
// 8x8
if (font == VGAFont.Font8x8)
{
// convert to position and draw
if (VGAFontData.ConvertByteToBitAddress(VGAFontData.Font8x8_Data[p + cy], cx + 1))
{
DrawPixel(x + (8 - cx), y + cy, fg);
}
else
{
DrawPixel(x + (8 - cx), y + cy, bg);
}
}
// 8x16
else if (font == VGAFont.Font8x16)
{
// convert to position and draw
if (VGAFontData.ConvertByteToBitAddress(VGAFontData.Font8x16_Data[p + cy], cx + 1))
{
DrawPixel(x + (8 - cx), y + cy, fg);
}
else
{
DrawPixel(x + (8 - cx), y + cy, bg);
}
}
}
}
}
