public FontManager()
{
families = new List <FontFamily> ();
using (Pango.Context c = PangoHelper.ContextGet())
families.AddRange(c.Families);
}
///<summary>Constructor</summary>
public Drawer(Gtk.Widget wid, Information inf)
{
widget = wid;
info = inf;
pixmapIds = new StringCollection();
// make sure highlight colors are set
info.SetupHighlight(wid);
fontDescription = Pango.FontDescription.FromString(info.FontName);
Pango.Language lang = Pango.Language.FromString(info.FontLanguage);
Pango.Context pangoCtx = widget.PangoContext;
pangoCtx.FontDescription = fontDescription;
pangoCtx.Language = lang;
// set the font height and width
pangoLayout = new Pango.Layout(pangoCtx);
// we use a monospaced font, the actual character doesn't matter
pangoLayout.SetText("X");
pangoLayout.GetPixelSize(out width, out height);
pangoLayout.SetText("");
// create the font pixmaps
InitializePixmaps();
InitializeBackgroundGCs();
}
/// <summary>
/// Sets the graphics target.
/// </summary>
/// <param name="graphics">The graphics surface.</param>
public void SetGraphicsTarget(Cairo.Context graphics)
{
this.g = graphics;
this.g.Antialias = Antialias.Subpixel; // TODO .TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
#if GTKSHARP3
this.c = Pango.CairoHelper.CreateContext(this.g);
#endif
}
public override bool RegisterFontFromFile (string fontPath)
{
var result = AddFontFile (fontPath);
if (result) {
pango_cairo_font_map_set_default (System.IntPtr.Zero);
systemContext = Gdk.PangoHelper.ContextGet ();
}
return result;
}
public override bool RegisterFontFromFile(string fontPath)
{
var result = AddFontFile(fontPath);
if (result)
{
pango_cairo_font_map_set_default(System.IntPtr.Zero);
systemContext = Gdk.PangoHelper.ContextGet();
}
return(result);
}
// Used by GeneratePDF
public CairoContext(Cairo.Surface s, string font, int dpis) : base(s)
{
layout = Pango.CairoHelper.CreateLayout(this);
font_description = layout.FontDescription = FontDescription.FromString(font);
if (dpis > 0)
{
Pango.Context c = layout.Context;
Pango.CairoHelper.ContextSetResolution(c, dpis);
c.Dispose();
}
FontLineSpace = def_linespace;
}
public static int MeasureTextHeight (this FontDescription description, Context context, Language language)
{
using (var metrics = context.GetMetrics (description, language)) {
return ((int)(metrics.Ascent + metrics.Descent) + 512) >> 10; // PANGO_PIXELS (d)
}
}
public static int MeasureTextHeight (this FontDescription description, Context context)
{
return MeasureTextHeight (description, context, context.Language);
}
static GtkFontBackendHandler()
{
systemContext = Gdk.PangoHelper.ContextGet ();
}
static GtkFontBackendHandler()
{
systemContext = Gdk.PangoHelper.ContextGet();
}
static TextBase()
{
using var surf = new ImageSurface(Format.RGB24, 1, 1);
using var ctx = new Cairo.Context(surf);
_defaultContext = Pango.CairoHelper.CreateContext(ctx);
}
