shithub: vdiff

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use mousescrollsize()

	mouse scroll speed is now based on the mousescrollsize() helper function.
	This allows for defining an env variable named mousescrollsize to change
	the speed instead of having an hard coded default.
	Thanks nicolagi for the pointer.

--- a/vdiff.c

+++ b/vdiff.c

@@ -41,6 +41,7 @@

 Rectangle textr;

 Image *cols[Ncols];

 Image *scrollbg;

+int scrollsize;

 int lineh;

 int nlines;

 int offset;

@@ -133,6 +134,7 @@

 	lineh = Vpadding+font->height+Vpadding;

 	nlines = Dy(textr)/lineh;

 	offset = 0;

+	scrollsize = mousescrollsize(nlines);

 	redraw();

 }

@@ -309,9 +311,9 @@

 				if(n>=0 && lines[n+offset]->f != nil)

 					plumb(lines[n+offset]->f, lines[n+offset]->l);

 			}else if(ev.mouse.buttons&8)

-				scroll(-10);

+				scroll(-scrollsize);

 			else if(ev.mouse.buttons&16)

-				scroll(10);

+				scroll(scrollsize);

 			break;

 		case Ekeyboard:

 			switch(ev.kbdc){