private void RenderStart(BarCodeRenderInfo info)
{
RenderBar(info, false);
RenderGap(info, false);
RenderBar(info, false);
RenderGap(info, false);
}
/// <summary>
/// Renders the bar code.
/// </summary>
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 = info.Center - Size / 2;
info.CurrPos = position - CodeBase.CalcDistance(AnchorType.TopLeft, Anchor, Size);
if (TurboBit)
{
RenderTurboBit(info, true);
}
RenderStart(info);
while (info.CurrPosInString < Text.Length)
{
RenderNextPair(info);
}
RenderStop(info);
if (TurboBit)
{
RenderTurboBit(info, false);
}
if (TextLocation != TextLocation.None)
{
RenderText(info);
}
gfx.Restore(state);
}
internal void RenderText(BarCodeRenderInfo info)
{
if (info.Font == null)
{
info.Font = new XFont("Courier New", Size.Height / 6);
}
XPoint center = info.Position + CalcDistance(Anchor, AnchorType.TopLeft, Size);
switch (TextLocation)
{
case TextLocation.Above:
center = new XPoint(center.X, center.Y - info.Gfx.MeasureString(Text, info.Font).Height);
info.Gfx.DrawString(Text, info.Font, info.Brush, new XRect(center, Size), XStringFormats.TopCenter);
break;
case TextLocation.AboveEmbedded:
info.Gfx.DrawString(Text, info.Font, info.Brush, new XRect(center, Size), XStringFormats.TopCenter);
break;
case TextLocation.Below:
center = new XPoint(center.X, info.Gfx.MeasureString(Text, info.Font).Height + center.Y);
info.Gfx.DrawString(Text, info.Font, info.Brush, new XRect(center, Size), XStringFormats.BottomCenter);
break;
case TextLocation.BelowEmbedded:
info.Gfx.DrawString(Text, info.Font, info.Brush, new XRect(center, Size), XStringFormats.BottomCenter);
break;
}
}
internal override void InitRendering(BarCodeRenderInfo info)
{
base.InitRendering(info);
CalcThinBarWidth(info);
info.BarHeight = Size.Height;
// HACK in ThickThinBarCode
if (this.textLocation != TextLocation.None)
{
info.BarHeight *= 4.0 / 5;
}
#if DEBUG_
XColor back = XColors.LightSalmon;
back.A = 0.3;
XSolidBrush brush = new XSolidBrush(back);
info.Gfx.DrawRectangle(brush, new XRect(info.Center - this.size / 2, this.size));
#endif
switch (this.direction)
{
case CodeDirection.RightToLeft:
info.Gfx.RotateAtTransform(180, info.Position);
break;
case CodeDirection.TopToBottom:
info.Gfx.RotateAtTransform(90, info.Position);
break;
case CodeDirection.BottomToTop:
info.Gfx.RotateAtTransform(-90, info.Position);
break;
}
}
/// <summary>
/// Renders a single line of the character. Each character has three lines and three spaces
/// </summary>
/// <param name="info">
/// </param>
/// <param name="barWidth">
/// Indicates the thickness of the line/bar to be rendered.
/// </param>
/// <param name="brush">
/// Indicates the brush to use to render the line/bar.
/// </param>
private void RenderBar(BarCodeRenderInfo info, double barWidth, XBrush brush)
{
double height = this.Size.Height;
double yPos = info.CurrPos.Y;
switch (this.TextLocation)
{
case TextLocation.Above:
yPos = info.CurrPos.Y + (height / 5);
height *= 4.0 / 5;
break;
case TextLocation.Below:
height *= 4.0 / 5;
break;
case TextLocation.AboveEmbedded:
case TextLocation.BelowEmbedded:
case TextLocation.None:
break;
}
XRect rect = new XRect(info.CurrPos.X, yPos, barWidth, height);
info.Gfx.DrawRectangle(brush, rect);
info.CurrPos.X += barWidth;
}
internal override void InitRendering(BarCodeRenderInfo info)
{
base.InitRendering(info);
CalcThinBarWidth(info);
info.BarHeight = Size.Height;
// HACK in ThickThinBarCode
if (this.textLocation != TextLocation.None)
info.BarHeight *= 4.0 / 5;
#if DEBUG_
XColor back = XColors.LightSalmon;
back.A = 0.3;
XSolidBrush brush = new XSolidBrush(back);
info.Gfx.DrawRectangle(brush, new XRect(info.Center - this.size / 2, this.size));
#endif
switch (this.direction)
{
case CodeDirection.RightToLeft:
info.Gfx.RotateAtTransform(180, info.Position);
break;
case CodeDirection.TopToBottom:
info.Gfx.RotateAtTransform(90, info.Position);
break;
case CodeDirection.BottomToTop:
info.Gfx.RotateAtTransform(-90, info.Position);
break;
}
}
/// <summary>
/// Gets the width of a thick or a thin line (or gap). CalcLineWidth must have been called before.
/// </summary>
/// <param name="info"></param>
/// <param name="isThick">Determines whether a thick line's with shall be returned.</param>
internal double GetBarWidth(BarCodeRenderInfo info, bool isThick)
{
if (isThick)
{
return(info.ThinBarWidth * _wideNarrowRatio);
}
return(info.ThinBarWidth);
}
internal 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);
//center.Y += info.Font.Size;
info.Gfx.DrawString(this.text, info.Font, info.Brush, new XRect(center, Size), XStringFormats.BottomCenter);
}
/// <summary>
/// Renders a thick or thin line for the bar code.
/// </summary>
/// <param name="info"></param>
/// <param name="isThick">Determines whether a thick or a thin line is about to be rendered.</param>
internal void RenderBar(BarCodeRenderInfo info, bool isThick)
{
double barWidth = GetBarWidth(info, isThick);
double height = Size.Height;
//if (TextLocation != TextLocation.None)
// height *= 4.0 / 5;
XRect rect = new XRect(info.CurrPos.X, info.CurrPos.Y, barWidth, height);
info.Gfx.DrawRectangle(info.Brush, rect);
info.CurrPos.X += barWidth;
}
private void RenderValue(BarCodeRenderInfo info, bool[] value)
{
foreach (bool bar in value)
{
if (bar)
{
XRect rect = new XRect(info.CurrPos.X, info.CurrPos.Y, info.ThinBarWidth, Size.Height);
info.Gfx.DrawRectangle(info.Brush, rect);
}
info.CurrPos.X += info.ThinBarWidth;
}
}
private void RenderChar(BarCodeRenderInfo info, char ch)
{
bool[] thickThinLines = ThickThinLines(ch);
int idx = 0;
while (idx < 9)
{
RenderBar(info, thickThinLines[idx]);
if (idx < 8)
RenderGap(info, thickThinLines[idx + 1]);
idx += 2;
}
}
internal virtual void InitRendering(BarCodeRenderInfo info)
{
if (Text == null)
{
throw new InvalidOperationException(BcgSR.BarCodeNotSet);
}
if (Size.IsEmpty)
{
throw new InvalidOperationException(BcgSR.EmptyBarCodeSize);
}
}
private void RenderRight(BarCodeRenderInfo info)
{
string text = this.text.Substring(7);
if (this.text.Length == 12)
{
text += CalculateChecksumDigit(this.text);
}
foreach (char ch in text)
{
RenderDigit(info, ch, RightLines);
}
}
/// <summary>
/// Renders the next digit pair as bar code element.
/// </summary>
private void RenderNextPair(BarCodeRenderInfo info)
{
int digitForLines = int.Parse(Text[info.CurrPosInString].ToString());
int digitForGaps = int.Parse(Text[info.CurrPosInString + 1].ToString());
bool[] linesArray = Lines[digitForLines];
bool[] gapsArray = Lines[digitForGaps];
for (int idx = 0; idx < 5; ++idx)
{
RenderBar(info, linesArray[idx]);
RenderGap(info, gapsArray[idx]);
}
info.CurrPosInString += 2;
}
/// <summary>
/// Renders a thick bar before or behind the code.
/// </summary>
internal void RenderTurboBit(BarCodeRenderInfo info, bool startBit)
{
if (startBit)
{
info.CurrPos.X -= 0.5 + GetBarWidth(info, true);
}
else
{
info.CurrPos.X += 0.5; //GetBarWidth(info, true);
}
RenderBar(info, true);
if (startBit)
{
info.CurrPos.X += 0.5; //GetBarWidth(info, true);
}
}
/// <summary>
/// The render value.
/// </summary>
/// <param name="info">
/// The info.
/// </param>
/// <param name="chVal">
/// The ch val.
/// </param>
private void RenderValue(BarCodeRenderInfo info, int chVal)
{
byte[] pattern = this.GetPattern(chVal);
XBrush space = XBrushes.White;
for (int idx = 0; idx < pattern.Length; idx++)
{
if ((idx % 2) == 0)
{
this.RenderBar(info, info.ThinBarWidth * pattern[idx]);
}
else
{
this.RenderBar(info, info.ThinBarWidth * pattern[idx], space);
}
}
}
/// <summary>
/// The init rendering.
/// </summary>
/// <param name="info">
/// The info.
/// </param>
/// <exception cref="InvalidOperationException">
/// </exception>
/// <exception cref="InvalidOperationException">
/// </exception>
internal override void InitRendering(BarCodeRenderInfo info)
{
if (this.Values == null)
{
throw new InvalidOperationException(BcgSR.BarCodeNotSet);
}
if (this.Values.Length == 0)
{
throw new InvalidOperationException(BcgSR.EmptyBarCodeSize);
}
int numberOfBars = this.Values.Length + 3; // The length of the string plus the start, stop, and parity value
numberOfBars *= 11; // Each character has 11 bars
numberOfBars += 2; // Add two more because the stop bit has two extra bars
// Calculating the width of a bar
info.ThinBarWidth = this.Size.Width / numberOfBars;
}
/// <summary>
/// Calculates the thick and thin line widths,
/// taking into account the required rendering size.
/// </summary>
internal override void CalcThinBarWidth(BarCodeRenderInfo info)
{
/*
* The total width is the sum of the following parts:
* Starting lines = 3 * thick + 7 * thin
* +
* Code Representation = (3 * thick + 7 * thin) * code.Length
* +
* Stopping lines = 3 * thick + 6 * thin
*
* with r = relation ( = thick / thin), this results in
*
* Total width = (13 + 6 * r + (3 * r + 7) * code.Length) * thin
*/
double thinLineAmount = 13 + 6 * WideNarrowRatio + (3 * WideNarrowRatio + 7) * Text.Length;
info.ThinBarWidth = Size.Width / thinLineAmount;
}
/// <summary>
/// Calculates the thick and thin line widths,
/// taking into account the required rendering size.
/// </summary>
internal override void CalcThinBarWidth(BarCodeRenderInfo info)
{
/*
* The total width is the sum of the following parts:
* Starting lines = 4 * thin
* +
* Code Representation = (2 * thick + 3 * thin) * code.Length
* +
* Stopping lines = 1 * thick + 2 * thin
*
* with r = relation ( = thick / thin), this results in
*
* Total width = (6 + r + (2 * r + 3) * text.Length) * thin
*/
double thinLineAmount = 6 + this.wideNarrowRatio + (2 * this.wideNarrowRatio + 3) * this.text.Length;
info.ThinBarWidth = this.Size.Width / thinLineAmount;
}
/// <summary>
/// Renders the bar code.
/// </summary>
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);
// EAN13 Barcode should be a total of 113 modules wide.
int numberOfBars = 12; // The length - country code
numberOfBars *= 7; // Each character has 7 bars
numberOfBars += 2 * (Quite.Length + Leading.Length);
numberOfBars += Separator.Length;
info.ThinBarWidth = ((double)this.Size.Width / (double)numberOfBars);
RenderStart(info);
m_leftBlock.x = info.CurrPos.x + info.ThinBarWidth / 2;
RenderLeft(info);
m_leftBlock.Width = info.CurrPos.x - m_leftBlock.x;
RenderSeparator(info);
m_rightBlock.x = info.CurrPos.x;
RenderRight(info);
m_rightBlock.Width = info.CurrPos.x - m_rightBlock.x - info.ThinBarWidth / 2;
RenderStop(info);
if (this.TextLocation == TextLocation.BelowEmbedded)
{
RenderText(info);
}
gfx.Restore(state);
}
/// <summary>
/// The render text.
/// </summary>
/// <param name="info">
/// The info.
/// </param>
private void RenderText(BarCodeRenderInfo info)
{
if (info.Font == null)
{
info.Font = new XFont("Courier New", this.Size.Height / 6);
}
XPoint center = info.Position + CodeBase.CalcDistance(this.anchor, AnchorType.TopLeft, this.size);
if (this.TextLocation == TextLocation.Above)
{
info.Gfx.DrawString(this.text, info.Font, info.Brush, new XRect(center, this.Size), XStringFormats.TopCenter);
}
else if (this.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, this.Size), XStringFormats.TopCenter);
}
else if (this.TextLocation == TextLocation.Below)
{
info.Gfx.DrawString(this.text, info.Font, info.Brush, new XRect(center, this.Size), XStringFormats.BottomCenter);
}
else if (this.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 += this.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, this.Size), XStringFormats.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 a thick or thin line for the bar code.
/// </summary>
/// <param name="info"></param>
/// <param name="isThick">Determines whether a thick or a thin line is about to be rendered.</param>
internal void RenderBar(BarCodeRenderInfo info, bool isThick)
{
double barWidth = GetBarWidth(info, isThick);
double height = Size.Height;
double xPos = info.CurrPos.X;
double yPos = info.CurrPos.Y;
switch (TextLocation)
{
case TextLocation.AboveEmbedded:
height -= info.Gfx.MeasureString(Text, info.Font).Height;
yPos += info.Gfx.MeasureString(Text, info.Font).Height;
break;
case TextLocation.BelowEmbedded:
height -= info.Gfx.MeasureString(Text, info.Font).Height;
break;
}
XRect rect = new XRect(xPos, yPos, barWidth, height);
info.Gfx.DrawRectangle(info.Brush, rect);
info.CurrPos.X += barWidth;
}
/// <summary>
/// Renders a single line of the character. Each character has three lines and three spaces
/// </summary>
/// <param name="info">
/// </param>
/// <param name="barWidth">
/// Indicates the thickness of the line/bar to be rendered.
/// </param>
internal void RenderBar(BarCodeRenderInfo info, double barWidth) { this.RenderBar(info, barWidth, info.Brush); }
/// <summary>
/// The render value.
/// </summary>
/// <param name="info">
/// The info.
/// </param>
/// <param name="chVal">
/// The ch val.
/// </param>
private void RenderValue(BarCodeRenderInfo info, int chVal)
{
byte[] pattern = this.GetPattern(chVal);
XBrush space = XBrushes.White;
for (int idx = 0; idx < pattern.Length; idx++)
if ((idx % 2) == 0)
this.RenderBar(info, info.ThinBarWidth * pattern[idx]);
else
this.RenderBar(info, info.ThinBarWidth * pattern[idx], space);
}
/// <summary>
/// The init rendering.
/// </summary>
/// <param name="info">
/// The info.
/// </param>
/// <exception cref="InvalidOperationException">
/// </exception>
/// <exception cref="InvalidOperationException">
/// </exception>
internal override void InitRendering(BarCodeRenderInfo info)
{
if (this.Values == null)
throw new InvalidOperationException(BcgSR.BarCodeNotSet);
if (this.Values.Length == 0)
throw new InvalidOperationException(BcgSR.EmptyBarCodeSize);
int numberOfBars = this.Values.Length + 3; // The length of the string plus the start, stop, and parity value
numberOfBars *= 11; // Each character has 11 bars
numberOfBars += 2; // Add two more because the stop bit has two extra bars
// Calculating the width of a bar
info.ThinBarWidth = this.Size.Width / numberOfBars;
}
internal virtual void InitRendering(BarCodeRenderInfo info)
{
if (this.text == null)
throw new InvalidOperationException(BcgSR.BarCodeNotSet);
if (this.Size.IsEmpty)
throw new InvalidOperationException(BcgSR.EmptyBarCodeSize);
}
/// <summary>
/// The render stop.
/// </summary>
/// <param name="info">
/// The info.
/// </param>
private void RenderStop(BarCodeRenderInfo info)
{
this.RenderValue(info, this.CalculateParity());
this.RenderValue(info, CODE128_STOPCODE);
}
/// <summary>
/// Gets the width of a thick or a thin line (or gap). CalcLineWidth must have been called before.
/// </summary>
/// <param name="info"></param>
/// <param name="isThick">Determines whether a thick line's with shall be returned.</param>
internal double GetBarWidth(BarCodeRenderInfo info, bool isThick)
{
if (isThick)
return info.ThinBarWidth * this.wideNarrowRatio;
else
return info.ThinBarWidth;
}
/// <summary>
/// Renders the next digit pair as bar code element.
/// </summary>
private void RenderNextPair(BarCodeRenderInfo info)
{
int digitForLines = int.Parse(this.text[info.CurrPosInString].ToString());
int digitForGaps = int.Parse(this.text[info.CurrPosInString + 1].ToString());
bool[] linesArray = Lines[digitForLines];
bool[] gapsArray = Lines[digitForGaps];
for (int idx = 0; idx < 5; ++idx)
{
RenderBar(info, linesArray[idx]);
RenderGap(info, gapsArray[idx]);
}
info.CurrPosInString += 2;
}
/// <summary>
/// Renders a thick or thin line for the bar code.
/// </summary>
/// <param name="info"></param>
/// <param name="isThick">Determines whether a thick or a thin line is about to be rendered.</param>
internal void RenderBar(BarCodeRenderInfo info, bool isThick)
{
double barWidth = GetBarWidth(info, isThick);
double height = Size.Height;
if (TextLocation != TextLocation.None)
height *= 4.0 / 5;
XRect rect = new XRect(info.CurrPos.X, info.CurrPos.Y, barWidth, height);
info.Gfx.DrawRectangle(info.Brush, rect);
info.CurrPos.X += barWidth;
}
/// <summary>
/// Renders a thick bar before or behind the code.
/// </summary>
internal void RenderTurboBit(BarCodeRenderInfo info, bool startBit)
{
if (startBit)
info.CurrPos.X -= 0.5 + GetBarWidth(info, true);
else
info.CurrPos.X += 0.5; //GetBarWidth(info, true);
RenderBar(info, true);
if (startBit)
info.CurrPos.X += 0.5; //GetBarWidth(info, true);
}
/// <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);
}
private void RenderStop(BarCodeRenderInfo info)
{
RenderChar(info, '*');
}
/// <summary>
/// Calculates the thick and thin line widths,
/// taking into account the required rendering size.
/// </summary>
internal override void CalcThinBarWidth(BarCodeRenderInfo info)
{
/*
* The total width is the sum of the following parts:
* Starting lines = 3 * thick + 7 * thin
* +
* Code Representation = (3 * thick + 7 * thin) * code.Length
* +
* Stopping lines = 3 * thick + 6 * thin
*
* with r = relation ( = thick / thin), this results in
*
* Total width = (13 + 6 * r + (3 * r + 7) * code.Length) * thin
*/
double thinLineAmount = 13 + 6 * this.wideNarrowRatio + (3 * this.wideNarrowRatio + 7) * this.text.Length;
info.ThinBarWidth = this.Size.Width / thinLineAmount;
}
/// <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);
}
/// <summary>
/// Renders a single line of the character. Each character has three lines and three spaces
/// </summary>
/// <param name="info">
/// </param>
/// <param name="barWidth">
/// Indicates the thickness of the line/bar to be rendered.
/// </param>
internal void RenderBar(BarCodeRenderInfo info, double barWidth)
{
this.RenderBar(info, barWidth, info.Brush);
}
/// <summary>
/// Renders a single line of the character. Each character has three lines and three spaces
/// </summary>
/// <param name="info">
/// </param>
/// <param name="barWidth">
/// Indicates the thickness of the line/bar to be rendered.
/// </param>
/// <param name="brush">
/// Indicates the brush to use to render the line/bar.
/// </param>
private void RenderBar(BarCodeRenderInfo info, double barWidth, XBrush brush)
{
double height = this.Size.Height;
double yPos = info.CurrPos.Y;
switch (this.TextLocation)
{
case TextLocation.Above:
yPos = info.CurrPos.Y + (height / 5);
height *= 4.0 / 5;
break;
case TextLocation.Below:
height *= 4.0 / 5;
break;
case TextLocation.AboveEmbedded:
case TextLocation.BelowEmbedded:
case TextLocation.None:
break;
}
XRect rect = new XRect(info.CurrPos.X, yPos, barWidth, height);
info.Gfx.DrawRectangle(brush, rect);
info.CurrPos.X += barWidth;
}
private void RenderChar(BarCodeRenderInfo info, char ch)
{
bool[] thickThinLines = ThickThinLines(ch);
int idx = 0;
while (idx < 9)
{
RenderBar(info, thickThinLines[idx]);
if (idx < 8)
RenderGap(info, thickThinLines[idx + 1]);
idx += 2;
}
}
/// <summary>
/// Renders a thick or thin gap for the bar code.
/// </summary>
/// <param name="info"></param>
/// <param name="isThick">Determines whether a thick or a thin gap is about to be rendered.</param>
internal void RenderGap(BarCodeRenderInfo info, bool isThick)
{
info.CurrPos.X += GetBarWidth(info, isThick);
}
private void RenderStart(BarCodeRenderInfo info)
{
RenderChar(info, '*');
RenderGap(info, false);
}
internal 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);
//center.Y += info.Font.Size;
info.Gfx.DrawString(this.text, info.Font, info.Brush, new XRect(center, Size), XStringFormats.BottomCenter);
}
private void RenderNextChar(BarCodeRenderInfo info)
{
RenderChar(info, Text[info.CurrPosInString]);
++info.CurrPosInString;
}
internal abstract void CalcThinBarWidth(BarCodeRenderInfo info);
private void RenderStop(BarCodeRenderInfo info)
{
RenderBar(info, true);
RenderGap(info, false);
RenderBar(info, false);
}
internal abstract void CalcThinBarWidth(BarCodeRenderInfo info);
/// <summary>
/// The render text.
/// </summary>
/// <param name="info">
/// The info.
/// </param>
private void RenderText(BarCodeRenderInfo info)
{
if (info.Font == null)
info.Font = new XFont("Courier New", this.Size.Height / 6);
XPoint center = info.Position + CodeBase.CalcDistance(this.anchor, AnchorType.TopLeft, this.size);
if (this.TextLocation == TextLocation.Above)
info.Gfx.DrawString(this.text, info.Font, info.Brush, new XRect(center, this.Size), XStringFormats.TopCenter);
else if (this.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, this.Size), XStringFormats.TopCenter);
}
else if (this.TextLocation == TextLocation.Below)
info.Gfx.DrawString(this.text, info.Font, info.Brush, new XRect(center, this.Size), XStringFormats.BottomCenter);
else if (this.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 += this.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, this.Size), XStringFormats.BottomCenter);
}
}
/// <summary>
/// The render start.
/// </summary>
/// <param name="info">
/// The info.
/// </param>
private void RenderStart(BarCodeRenderInfo info) { this.RenderValue(info, (int)this.Code128Code); }
/// <summary>
/// The render start.
/// </summary>
/// <param name="info">
/// The info.
/// </param>
private void RenderStart(BarCodeRenderInfo info)
{
this.RenderValue(info, (int)this.Code128Code);
}
private void RenderStop(BarCodeRenderInfo info)
{
RenderChar(info, '*');
}
/// <summary>
/// The render stop.
/// </summary>
/// <param name="info">
/// The info.
/// </param>
private void RenderStop(BarCodeRenderInfo info)
{
this.RenderValue(info, this.CalculateParity());
this.RenderValue(info, CODE128_STOPCODE);
}
/// <summary>
/// Renders the bar code.
/// </summary>
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 = info.Center - this.size / 2;
info.CurrPos = position - CodeBase.CalcDistance(AnchorType.TopLeft, this.anchor, this.size);
if (TurboBit)
RenderTurboBit(info, true);
RenderStart(info);
while (info.CurrPosInString < this.text.Length)
{
RenderNextChar(info);
RenderGap(info, false);
}
RenderStop(info);
if (TurboBit)
RenderTurboBit(info, false);
if (TextLocation != TextLocation.None)
RenderText(info);
gfx.Restore(state);
}
/// <summary>
/// Renders a thick or thin line for the bar code.
/// </summary>
/// <param name="info"></param>
/// <param name="isThick">Determines whether a thick or a thin line is about to be rendered.</param>
internal void RenderBar(BarCodeRenderInfo info, bool isThick)
{
double barWidth = GetBarWidth(info, isThick);
double height = Size.Height;
double xPos = info.CurrPos.X;
double yPos = info.CurrPos.Y;
switch (TextLocation)
{
case TextLocation.AboveEmbedded:
height -= info.Gfx.MeasureString(Text, info.Font).Height;
yPos += info.Gfx.MeasureString(Text, info.Font).Height;
break;
case TextLocation.BelowEmbedded:
height -= info.Gfx.MeasureString(Text, info.Font).Height;
break;
}
XRect rect = new XRect(xPos, yPos, barWidth, height);
info.Gfx.DrawRectangle(info.Brush, rect);
info.CurrPos.X += barWidth;
}
private void RenderNextChar(BarCodeRenderInfo info)
{
RenderChar(info, this.text[info.CurrPosInString]);
++info.CurrPosInString;
}
internal void RenderText(BarCodeRenderInfo info)
{
if (info.Font == null)
info.Font = new XFont("Courier New", Size.Height / 6);
XPoint center = info.Position + CalcDistance(Anchor, AnchorType.TopLeft, Size);
switch (TextLocation)
{
case TextLocation.Above:
center = new XPoint(center.X, center.Y - info.Gfx.MeasureString(Text, info.Font).Height);
info.Gfx.DrawString(Text, info.Font, info.Brush, new XRect(center, Size), XStringFormats.TopCenter);
break;
case TextLocation.AboveEmbedded:
info.Gfx.DrawString(Text, info.Font, info.Brush, new XRect(center, Size), XStringFormats.TopCenter);
break;
case TextLocation.Below:
center = new XPoint(center.X, info.Gfx.MeasureString(Text, info.Font).Height + center.Y);
info.Gfx.DrawString(Text, info.Font, info.Brush, new XRect(center, Size), XStringFormats.BottomCenter);
break;
case TextLocation.BelowEmbedded:
info.Gfx.DrawString(Text, info.Font, info.Brush, new XRect(center, Size), XStringFormats.BottomCenter);
break;
}
}