Add null-check for game canvas

If frame is opened too fast and game did not managed to create the
canvas yet, frame will crash during startup on NPE.

Signed-off-by: Tomas Slusny <slusnucky@gmail.com>
This commit is contained in:
Tomas Slusny
2018-08-04 19:48:25 +02:00
parent 46c2745374
commit 7effa9ee50

View File

@@ -514,8 +514,12 @@ public class ClientUI
{ {
if (client instanceof Client) if (client instanceof Client)
{ {
final java.awt.Point point = SwingUtilities.convertPoint(((Client) client).getCanvas(), 0, 0, frame); final Canvas canvas = ((Client) client).getCanvas();
return new Point(point.x, point.y); if (canvas != null)
{
final java.awt.Point point = SwingUtilities.convertPoint(canvas, 0, 0, frame);
return new Point(point.x, point.y);
}
} }
return new Point(0, 0); return new Point(0, 0);
@@ -646,7 +650,10 @@ public class ClientUI
if (client instanceof Client) if (client instanceof Client)
{ {
final Canvas c = ((Client) client).getCanvas(); final Canvas c = ((Client) client).getCanvas();
c.requestFocusInWindow(); if (c != null)
{
c.requestFocusInWindow();
}
} }
else if (client != null) else if (client != null)
{ {