本文整理汇总了C#中IScanner.ScanChar方法的典型用法代码示例。如果您正苦于以下问题：C# IScanner.ScanChar方法的具体用法？C# IScanner.ScanChar怎么用？C# IScanner.ScanChar使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IScanner的用法示例。
在下文中一共展示了IScanner.ScanChar方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Scan
/**
<summary>Executes scanning on this operation.</summary>
<param name="state">Graphics state context.</param>
<param name="textScanner">Scanner to be notified about text contents.
In case it's null, the operation is applied to the graphics state context.</param>
*/
public void Scan(
ContentScanner.GraphicsState state,
IScanner textScanner
)
{
/*
TODO: I really dislike this solution -- it's a temporary hack until the event-driven
parsing mechanism is implemented...
*/
/*
TODO: support to vertical writing mode.
*/
IContentContext context = state.Scanner.ContentContext;
double contextHeight = context.Box.Height;
Font font = state.Font;
double fontSize = state.FontSize;
double scale = state.Scale / 100;
double scaledFactor = Font.GetScalingFactor(fontSize) * scale;
double wordSpace = state.WordSpace * scale;
double charSpace = state.CharSpace * scale;
Matrix ctm = state.Ctm.Clone();
Matrix tm = state.Tm;
if(this is ShowTextToNextLine)
{
ShowTextToNextLine showTextToNextLine = (ShowTextToNextLine)this;
double? newWordSpace = showTextToNextLine.WordSpace;
if(newWordSpace != null)
{
if(textScanner == null)
{state.WordSpace = newWordSpace.Value;}
wordSpace = newWordSpace.Value * scale;
}
double? newCharSpace = showTextToNextLine.CharSpace;
if(newCharSpace != null)
{
if(textScanner == null)
{state.CharSpace = newCharSpace.Value;}
charSpace = newCharSpace.Value * scale;
}
tm = state.Tlm.Clone();
tm.Translate(0, (float)state.Lead);
}
else
{tm = state.Tm.Clone();}
foreach(object textElement in Value)
{
if(textElement is byte[]) // Text string.
{
string textString = font.Decode((byte[])textElement);
foreach(char textChar in textString)
{
double charWidth = font.GetWidth(textChar) * scaledFactor;
if(textScanner != null)
{
/*
NOTE: The text rendering matrix is recomputed before each glyph is painted
during a text-showing operation.
*/
Matrix trm = ctm.Clone(); trm.Multiply(tm);
double charHeight = font.GetHeight(textChar,fontSize);
drawing::RectangleF charBox = new drawing::RectangleF(
trm.Elements[4],
(float)(contextHeight - trm.Elements[5] - font.GetAscent(fontSize) * trm.Elements[3]),
(float)charWidth * trm.Elements[0],
(float)charHeight * trm.Elements[3]
);
textScanner.ScanChar(textChar,charBox);
}
/*
NOTE: After the glyph is painted, the text matrix is updated
according to the glyph displacement and any applicable spacing parameter.
*/
tm.Translate((float)(charWidth + charSpace + (textChar == ' ' ? wordSpace : 0)), 0);
}
}
else // Text position adjustment.
{tm.Translate((float)(-Convert.ToSingle(textElement) * scaledFactor), 0);}
}
if(textScanner == null)
{
state.Tm = tm;
if(this is ShowTextToNextLine)
{state.Tlm = tm.Clone();}
}
}