/// <summary>
/// Draws the message.
/// </summary>
/// <param name="text">The text for the image.</param>
/// <param name="msgWdt">The MSG WDT.</param>
/// <param name="msgHgt">The MSG HGT.</param>
/// <param name="dpi">The dpiof the image.</param>
/// <param name="leftMargin">The left margin.</param>
/// <returns>
/// A <see cref="Bitmap" /> objects.
/// </returns>
/// <externalUnit/>
/// <revision revisor="dev13" date="11/18/2009" version="1.1.3.6">
/// Added documentation header
/// </revision>
private static Bitmap DrawMessage(
string text, int msgWdt, int msgHgt, float dpi, int leftMargin)
{
// create the bitmap (1 bit per pixel)
Bitmap bmpMsg = new Bitmap(
msgWdt, msgHgt, PixelFormat.Format1bppIndexed);
// set resolution
bmpMsg.SetResolution(dpi, dpi);
// get a rectangle for the entire area of the bitmap
Rectangle rect = new Rectangle(0, 0, msgWdt, msgHgt);
// and lock it to get a bitmap data object that is the one actually
// used to handle the bitmap pixels. This is something that needs
// to be done when dealing with 1-bit-per-pixel bitmaps
BitmapData g = bmpMsg.LockBits(
rect, ImageLockMode.WriteOnly, bmpMsg.PixelFormat);
ClearBitmap(g, true);
int x = leftMargin,
y = (msgHgt - PixelChar.CharHeight) / 2,
move;
for (int i = 0; i < text.Length; i = i + 1)
{
move = PixelChar.DrawChar(g, text[i], x, y, false);
x = x + move + 1;
}
bmpMsg.UnlockBits(g);
return(bmpMsg);
}
/// <summary>
/// Draws the specified text.
/// </summary>
/// <param name="text">The text for the image.</param>
/// <param name="height">The height.</param>
/// <param name="dpi">The dpi of the image.</param>
/// <param name="leftMargin">The left margin.</param>
/// <param name="rightMargin">The right margin.</param>
/// <returns>
/// A <see cref="Bitmap" /> object.
/// </returns>
/// <externalUnit/>
/// <revision revisor="dev13" date="11/18/2009" version="1.1.3.6">
/// Added documentation header
/// </revision>
public static Bitmap Draw(
string text,
float height,
float dpi,
int leftMargin,
int rightMargin)
{
leftMargin = leftMargin + 10;
rightMargin = rightMargin + 10;
int msgHgt = Convert.ToInt32(Math.Floor(dpi * height)),
msgWdt = PixelChar.MeasureText(text, 1) + leftMargin + rightMargin;
Bitmap barcode = DrawMessage(text, msgWdt, msgHgt, dpi, leftMargin);
return(barcode);
}
