private void RenderText(BarCodeRenderInfo info)
{
if (info.Font == null)
{
info.Font = new XFont("Courier New", Size.Height / 6);
}
XPoint center = info.Position + CodeBase.CalcDistance(this.anchor, AnchorType.TopLeft, this.size);
if (TextLocation == TextLocation.Above)
{
info.Gfx.DrawString(this.text, info.Font, info.Brush, new XRect(center, Size), XStringFormat.TopCenter);
}
else if (TextLocation == TextLocation.AboveEmbedded)
{
XSize textSize = info.Gfx.MeasureString(this.text, info.Font);
textSize.Width += this.Size.Width * .15;
XPoint point = info.Position;
point.X += (this.Size.Width - textSize.Width) / 2;
XRect rect = new XRect(point, textSize);
info.Gfx.DrawRectangle(XBrushes.White, rect);
info.Gfx.DrawString(this.text, info.Font, info.Brush, new XRect(center, Size), XStringFormat.TopCenter);
}
else if (TextLocation == TextLocation.Below)
{
info.Gfx.DrawString(this.text, info.Font, info.Brush, new XRect(center, Size), XStringFormat.BottomCenter);
}
else if (TextLocation == TextLocation.BelowEmbedded)
{
XSize textSize = info.Gfx.MeasureString(this.text, info.Font);
textSize.Width += this.Size.Width * .15;
XPoint point = info.Position;
point.X += (this.Size.Width - textSize.Width) / 2;
point.Y += Size.Height - textSize.height;
XRect rect = new XRect(point, textSize);
info.Gfx.DrawRectangle(XBrushes.White, rect);
info.Gfx.DrawString(this.text, info.Font, info.Brush, new XRect(center, Size), XStringFormat.BottomCenter);
}
}
/// <summary>Renders the content found in Text</summary>
/// <param name="gfx">XGraphics - Instance of the drawing surface </param>
/// <param name="brush">XBrush - Line and Color to draw the bar code</param>
/// <param name="font">XFont - Font to use to draw the text string</param>
/// <param name="position">XPoint - Location to render the bar code</param>
protected internal override void Render(XGraphics gfx, XBrush brush, XFont font, XPoint position)
{
XGraphicsState state = gfx.Save();
BarCodeRenderInfo info = new BarCodeRenderInfo(gfx, brush, font, position);
InitRendering(info);
info.CurrPosInString = 0;
info.CurrPos = position - CodeBase.CalcDistance(AnchorType.TopLeft, this.anchor, this.size);
RenderStart(info);
foreach (byte c in Values)
{
RenderValue(info, (int)c);
}
RenderStop(info);
if (TextLocation != TextLocation.None)
{
RenderText(info);
}
gfx.Restore(state);
}
private void RenderText(BarCodeRenderInfo info)
{
if (info.Font == null)
{
info.Font = new XFont("Courier New", Size.Height / 4);
}
XPoint center = info.Position + CodeBase.CalcDistance(this.anchor, AnchorType.TopLeft, this.size);
XSize textSize = info.Gfx.MeasureString(this.text, info.Font);
double height = textSize.height;
double y = info.Position.y + Size.Height - textSize.height;
m_leftBlock.Height = height;
m_leftBlock.y = y;
m_rightBlock.Height = height;
m_rightBlock.y = y;
XPoint pos = new XPoint(info.Position.x, y);
info.Gfx.DrawString(this.text.Substring(0, 1), info.Font, info.Brush, new XRect(pos, Size), XStringFormats.TopLeft);
info.Gfx.DrawRectangle(XBrushes.White, m_leftBlock);
info.Gfx.DrawString(this.text.Substring(1, 6), info.Font, info.Brush, m_leftBlock, XStringFormats.TopCenter);
info.Gfx.DrawRectangle(XBrushes.White, m_rightBlock);
string text = this.text.Substring(7);
if (this.text.Length == 12)
{
text += CalculateChecksumDigit(this.text);
}
info.Gfx.DrawString(text, info.Font, info.Brush, m_rightBlock, XStringFormats.TopCenter);
}
/// <summary>
/// Renders the content found in Text
/// </summary>
/// <param name="gfx">
/// XGraphics - Instance of the drawing surface
/// </param>
/// <param name="brush">
/// XBrush - Line and Color to draw the bar code
/// </param>
/// <param name="font">
/// XFont - Font to use to draw the text string
/// </param>
/// <param name="position">
/// XPoint - Location to render the bar code
/// </param>
protected internal override void Render(XGraphics gfx, XBrush brush, XFont font, XPoint position)
{
// Create the array to hold the values to be rendered
this.Values = this.Code128Code == Code128Type.C ? new byte[this.text.Length / 2] : new byte[this.text.Length];
String buffer = String.Empty;
for (Int32 index = 0; index < text.Length; index++)
{
switch (this.Code128Code)
{
case Code128Type.A:
if (text[index] < 32)
{
this.Values[index] = (byte)(text[index] + 64);
}
else if ((text[index] >= 32) && (text[index] < 64))
{
this.Values[index] = (byte)(text[index] - 32);
}
else
{
this.Values[index] = (byte)text[index];
}
break;
case Code128Type.B:
this.Values[index] = (byte)(text[index] - 32);
break;
case Code128Type.C:
if ((text[index] >= '0') && (text[index] <= '9'))
{
buffer += text[index];
if (buffer.Length == 2)
{
this.Values[index / 2] = byte.Parse(buffer);
buffer = String.Empty;
}
}
else
{
throw new ArgumentOutOfRangeException("Parameter text (string) can only contain numeric characters for Code 128 - Code C");
}
break;
}
}
if (this.Values == null)
{
throw new InvalidOperationException("Text or Values must be set");
}
if (this.Values.Length == 0)
{
throw new InvalidOperationException("Text or Values must have content");
}
for (int x = 0; x < this.Values.Length; x++)
{
if (this.Values[x] > 102)
{
throw new ArgumentOutOfRangeException(BcgSR.InvalidCode128(x));
}
}
XGraphicsState state = gfx.Save();
BarCodeRenderInfo info = new BarCodeRenderInfo(gfx, brush, font, position);
this.InitRendering(info);
info.CurrPosInString = 0;
info.CurrPos = position - CodeBase.CalcDistance(AnchorType.TopLeft, this.anchor, this.size);
this.RenderStart(info);
foreach (byte c in this.Values)
{
this.RenderValue(info, c);
}
this.RenderStop(info);
if (this.TextLocation != TextLocation.None)
{
this.RenderText(info);
}
gfx.Restore(state);
}
