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Home » U++ Library support » RichText,QTF,RTF... » Constant font size in resizeable RichEdit?
Re: Constant font size in resizeable RichEdit? [message #41029 is a reply to message #41020] Tue, 22 October 2013 16:10 Go to previous messageGo to previous message
koldo is currently offline  koldo
Messages: 3358
Registered: August 2008
Senior Veteran
My proposal:

class RichEdit2 : public RichEdit {
public:
	RichEdit2() {
		zoomlevel = 7;
	}
	virtual void Layout() {
		RichEdit::Layout();
		SetPage(Size(int(zoomlevel*GetSize().cx), INT_MAX));	// Smaller the total, the bigger the text
	}
	virtual void MouseWheel(Point p, int zdelta, dword keyflags) {
		if (keyflags == K_CTRL) {		// Zooms font
			zoomlevel += zdelta/240.;
			if (zoomlevel < 1)
				zoomlevel = 10;
			else if (zoomlevel > 9)
				zoomlevel = 1;
			RefreshLayoutDeep();
		} else 							// Scrolls down
			RichEdit::MouseWheel(p, zdelta, keyflags);			
	}
	double zoomlevel;
};


Best regards
IƱaki

[Updated on: Tue, 22 October 2013 16:11]

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