public line_box(int top, int left, int front, int right, int line_height, font_metrics fm, text_align align) : base(top, left, front, right) //:h3ml
{
_height = 0;
_width = 0;
_depth = 0; //:h3ml
_font_metrics = fm;
_line_height = line_height;
_baseline = 0;
_text_align = align;
}
public override void parse_styles(bool is_reparse)
{
_text_transform = (text_transform)html.value_index(get_style_property("text-transform", true, "none"), types.text_transform_strings, (int)text_transform.none);
if (_text_transform != text_transform.none)
{
_transformed_text = _text;
_use_transformed = true;
get_document().container.transform_text(_transformed_text, _text_transform);
}
if (is_white_space())
{
_transformed_text = " "; _use_transformed = true;
}
else
{
if (_text == "\t")
{
_transformed_text = " "; _use_transformed = true;
}
if (_text == "\n" || _text == "\r")
{
_transformed_text = ""; _use_transformed = true;
}
}
object font = null; font_metrics fm;
var el_parent = parent();
if (el_parent != null)
{
font = el_parent.get_font(out fm);
}
else
{
fm = new font_metrics();
}
if (is_break())
{
_size.height = 0;
_size.width = 0;
_size.depth = 0; //:h3ml
}
else
{
_size.height = fm.height;
_size.width = get_document().container.text_width(_use_transformed ? _transformed_text : _text, font);
_size.depth = 0; //:h3ml
}
_draw_spaces = fm.draw_spaces;
}
public override object get_font(out font_metrics fm)
{
var el_parent = parent();
if (el_parent != null)
{
return(el_parent.get_font(out fm));
}
else
{
fm = default(font_metrics);
}
return(null);
}
public object get_font(string name, int size, string weight, string style, string decoration, out font_metrics fm)
{
if (name == null || string.Equals(name, "inherit", StringComparison.OrdinalIgnoreCase))
{
name = _container.get_default_font_name();
}
if (size == 0)
{
size = _container.get_default_font_size();
}
var key = $"{name}:{size}:{weight}:{style}:{decoration}";
if (_fonts.TryGetValue(key, out var el))
{
fm = el.metrics;
return(el.font);
}
return(add_font(name, size, weight, style, decoration, out fm));
}
object add_font(string name, int size, string weight, string style, string decoration, out font_metrics fm)
{
fm = default(font_metrics);
object ret = null;
if (name == null || string.Equals(name, "inherit", StringComparison.OrdinalIgnoreCase))
{
name = _container.get_default_font_name();
}
if (size == 0)
{
size = container.get_default_font_size();
}
var key = $"{name}:{size}:{weight}:{style}:{decoration}";
if (!_fonts.ContainsKey(key))
{
var fs = (font_style)html.value_index(style, types.font_style_strings, (int)font_style.normal);
var fw = html.value_index(weight, types.font_weight_strings, -1);
if (fw >= 0)
{
switch ((font_weight)fw)
{
case font_weight.bold: fw = (int)font_weight.w700; break;
case font_weight.bolder: fw = (int)font_weight.w600; break;
case font_weight.lighter: fw = (int)font_weight.w300; break;
default: fw = (int)font_weight.w400; break;
}
}
else
{
fw = int.TryParse(weight, out var v) ? v : 0;
if (fw < 100)
{
fw = (int)font_weight.w400;
}
}
var decor = 0U;
if (decoration != null)
{
var tokens = new List <string>();
html.split_string(decoration, tokens, " ");
foreach (var i in tokens)
{
if (string.Equals(i, "underline", StringComparison.OrdinalIgnoreCase))
{
decor |= types.font_decoration_underline;
}
else if (string.Equals(i, "line-through", StringComparison.OrdinalIgnoreCase))
{
decor |= types.font_decoration_linethrough;
}
else if (string.Equals(i, "overline", StringComparison.OrdinalIgnoreCase))
{
decor |= types.font_decoration_overline;
}
}
}
var fi = new font_item();
fi.font = _container.create_font(name, size, fw, fs, decor, out fi.metrics);
_fonts[key] = fi;
ret = fi.font;
fm = fi.metrics;
}
return(ret);
}
public object create_font(string faceName, int size, int weight, font_style italic, uint decoration, out font_metrics fm)
{
fm = default(font_metrics); return(IntPtr.Zero);
}