Fix background on resolutions other than 800x600

The image is now centered and a gray background is drawn behind it so
that parts that are not covered by the image don't show redrawing
issues.

(cherry picked from eAthena commit 07c2da75b7d994ab097e7c50d865bee929623685)

Conflicts:

	src/main.cpp

1 files changed, 10 insertions, 1 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 700e5676..5159712e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -920,7 +920,16 @@ int main(int argc, char *argv[])
                 }
             }
 
-            graphics->drawImage(login_wallpaper, 0, 0);
+            if (graphics->getWidth() > login_wallpaper->getWidth() ||
+                    graphics->getHeight() > login_wallpaper->getHeight())
+            {
+                graphics->setColor(gcn::Color(64, 64, 64));
+                graphics->fillRectangle(gcn::Rectangle(
+                            0, 0, graphics->getWidth(), graphics->getHeight()));
+            }
+            graphics->drawImage(login_wallpaper,
+                    (graphics->getWidth() - login_wallpaper->getWidth()) / 2,
+                    (graphics->getHeight() - login_wallpaper->getHeight()) / 2);
             gui->draw();
             graphics->updateScreen();