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Home » U++ Library support » Draw, Display, Images, Bitmaps, Icons » Strange issue with text in Painter
Re: Strange issue with text in Painter [message #50916 is a reply to message #50915] Mon, 14 January 2019 11:41 Go to previous messageGo to previous message
mirek is currently offline  mirek
Messages: 12576
Registered: November 2005
Ultimate Member
Thinking about it, I have suspiction that maybe RawPickToValue might have to do something with all that...

What about this:

struct sMakeGlyph : LRUCache<String, GlyphKey>::Maker {
	GlyphKey gk;

	GlyphKey Key() const     { return gk; }
	int      Make(String& v) const {
		GlyphPainter gp;
		gp.move = gp.pos = Null;
		gp.tolerance = gk.tolerance;
		PaintCharacter(gp, Pointf(0, 0), gk.chr, gk.fnt);
		int sz = gp.glyph.GetCount() * 4;
		v.Set((char *)gp.glyph.begin(), sizeof(float) * gp.glyph.GetCount());
		return sz;
	}
};

void ApproximateChar(LinearPathConsumer& t, Pointf at, int ch, Font fnt, double tolerance)
{
	PAINTER_TIMING("ApproximateChar");
	String v;
	INTERLOCKED {
		PAINTER_TIMING("ApproximateChar::Fetch");
		static LRUCache<String, GlyphKey> cache;
		cache.Shrink(500000);
		sMakeGlyph h;
		h.gk.fnt = fnt;
		h.gk.chr = ch;
		h.gk.tolerance = tolerance;
		v = cache.Get(h);
	}
	int i = 0;
	int count = v.GetCount() / sizeof(float);
	const float *g = (const float *)~v;
	while(i < count) {
		Pointf p;
		p.x = g[i++];
		if(p.x > 1e30) {
			p.x = g[i++];
			p.y = g[i++];
			t.Move(p + at);
		}
		else {
			PAINTER_TIMING("ApproximateChar::Line");
			p.y = g[i++];
			t.Line(p + at);
		}
	}
}
 
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