static public void ProcessText(ElementReader page_reader)
{
// Begin text element
Console.WriteLine("Begin Text Block:");
Element element;
while ((element = page_reader.Next()) != null)
{
switch (element.GetType())
{
case Element.Type.e_text_end:
// Finish the text block
Console.WriteLine("End Text Block.");
return;
case Element.Type.e_text:
{
GState gs = element.GetGState();
ColorSpace cs_fill = gs.GetFillColorSpace();
ColorPt fill = gs.GetFillColor();
ColorPt outc = new ColorPt();
cs_fill.Convert2RGB(fill, outc);
ColorSpace cs_stroke = gs.GetStrokeColorSpace();
ColorPt stroke = gs.GetStrokeColor();
Font font = gs.GetFont();
Console.Write("Font Name: ");
Console.WriteLine(font.GetName());
// font.IsFixedWidth();
// font.IsSerif();
// font.IsSymbolic();
// font.IsItalic();
// ...
// double word_spacing = gs.GetWordSpacing();
// double char_spacing = gs.GetCharSpacing();
// Use element.GetCTM() if you are interested in the CTM
// (current transformation matrix).
if (font.GetType() == Font.Type.e_Type3)
{
//type 3 font, process its data
for (CharIterator itr = element.GetCharIterator(); itr.HasNext(); itr.Next())
{
page_reader.Type3FontBegin(itr.Current());
ProcessElements(page_reader);
page_reader.End();
}
}
else
{
Matrix2D ctm = element.GetCTM();
Matrix2D text_mtx = element.GetTextMatrix();
/*
* Matrix2D mtx = ctm * text_mtx;
* double font_sz_scale_factor = System.Math.Sqrt(mtx.m_b * mtx.m_b + mtx.m_d * mtx.m_d);
* double font_size = gs.GetFontSize();
* Console.Write(" Font Size: {0:f}", font_sz_scale_factor * font_size);
*
* ColorPt font_color = gs.GetFillColor();
* ColorSpace cs = gs.GetFillColorSpace();
*
* ColorPt rgb = new ColorPt();
* cs.Convert2RGB(font_color, rgb);
* Color font_color_rgb = Color.FromArgb(255, (byte)(rgb.get_c(0)*255),
* (byte)(rgb.get_c(1)*255), (byte)(rgb.get_c(2)*255));
*
*
* Console.WriteLine(" Font Color(RGB): red={0:d} green={1:d} blue={2:d}",
* (byte)(rgb.Get(0)*255),
* (byte)(rgb.Get(1)*255),
* (byte)(rgb.Get(2)*255));
*/
double x, y;
int char_code;
for (CharIterator itr = element.GetCharIterator(); itr.HasNext(); itr.Next())
{
Console.Write("Character code: ");
char_code = itr.Current().char_code;
if (char_code >= 32 || char_code <= 127)
{
// Print if in ASCII range...
Console.Write((char)char_code);
}
x = itr.Current().x; // character positioning information
y = itr.Current().y;
// To get the exact character positioning information you need to
// concatenate current text matrix with CTM and then multiply
// relative positioning coordinates with the resulting matrix.
//
Matrix2D mtx2 = ctm * text_mtx;
mtx2.Mult(ref x, ref y);
// Console.WriteLine(" Position: x={0:f} y={1:f}", x, y);
}
}
Console.WriteLine();
break;
}
}
}
}
