Add a sticky button to the Window class

The Minimap window uses this so you can froce it to always be open. The
Minimap toggle button can be used to show or hide it temporarily, as
warping will reset it's visibility based on the sticky state and weather
the 'new' map has a minimap.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/gui/minimap.cpp b/src/gui/minimap.cpp
index 75ee7e3d..bfd34390 100644
--- a/src/gui/minimap.cpp
+++ b/src/gui/minimap.cpp
@@ -45,6 +45,9 @@ Minimap::Minimap():
     setDefaultSize(5, 25, 100, 100);
     setResizable(true);
 
+    setStickyButton(true);
+    setSticky(false);
+
     loadWindowState();
 }
 
@@ -92,8 +95,7 @@ void Minimap::setMapImage(Image *img)
 
 void Minimap::toggle()
 {
-    mShow = ! isVisible();
-    setVisible(mShow);
+    setVisible(!isVisible(), true);
 }
 
 void Minimap::draw(gcn::Graphics *graphics)