java - Restrict size of Text widget -

java - Restrict size of Text widget -

we have text widget input changed dynamically. size computed after setting new input. size should little possible

this works fine. wondering if in way possible restrict size of text. if lot of lines added text, takes of composite. there way update size of text widget after changing text, maximum value?

so far, tried add together resize listener on text. problem though, widget resized, space taken buttom. other content above covered anyways.

you can utilize griddata#heighthint restrict size of text. here illustration restricts height 3 (3) lines:

public static void main(string[] args) { display display = new display(); shell shell = new shell(); shell.settext("stackoverflow"); shell.setlayout(new gridlayout(1, false)); final text text = new text(shell, swt.border | swt.multi | swt.v_scroll); text.setlayoutdata(new griddata(swt.fill, swt.top, true, true)); text.addlistener(swt.modify, new listener() { private int height = 0; @override public void handleevent(event arg0) { int newheight = computeheight(text, 3); if (newheight != height) { height = newheight; griddata griddata = (griddata) text.getlayoutdata(); griddata.heighthint = height; text.setlayoutdata(griddata); text.getparent().layout(true, true); } } }); shell.pack(); shell.setsize(400, 300); shell.open(); while (!shell.isdisposed()) { if (!display.readanddispatch()) { display.sleep(); } } display.dispose(); } private static int computeheight(text text, int maxheight) { int height = text.gettext().split("\n", -1).length; homecoming math.min(height, maxheight) * text.getlineheight(); }

java layout swt