Fix the language dialog.

The 'fix' is bit ugly and needs a proper fix later on.

src/gui/widgets/grid.cpp

@@ -27,6 +27,8 @@
 
 namespace gui2 {
 
+	bool disable_cache = false;
+
 tgrid::tgrid(const unsigned rows, const unsigned cols) :
 	rows_(rows),
 	cols_(cols),
@@ -726,14 +728,19 @@ tpoint tgrid::tchild::get_best_size() const
 			<< ".\n";
 		return border_space();
 	}
-
-#if DISABLE_CACHE
+#if 0 // HACK
+#if disable_cache
 	if(true) {
 #else	
 	if(widget_->is_dirty() || best_size_ == tpoint(0, 0)) {
 #endif	
 		best_size_ = widget_->get_best_size() + border_space();
 	}
+#else
+if(disable_cache || widget_->is_dirty() || best_size_ == tpoint(0, 0)) {
+	best_size_ = widget_->get_best_size() + border_space();
+}
+#endif // HACK
 
 	DBG_G_L << "tgrid::tchild:"
 		<< " has widget " << true
@@ -978,10 +985,18 @@ tpoint tgrid::get_size(const std::string& id, std::vector<unsigned>& width,
 		tpoint (tchild::*size_proc_max)(const tpoint&) const,
 		const tpoint& maximum_size) const
 {
+#if 0 // HACK
 #if DISABLE_CACHE
 	height.clear();
 	width.clear();
 #endif	
+#else 
+if(disable_cache) {
+	height.clear();
+	width.clear();
+}
+#endif // HACK
+
 	if(height.empty() || width.empty() || maximum_size != tpoint(0, 0)) {
 
 		DBG_G_L << "tgrid: calculate " << id << " size.\n";

src/gui/widgets/grid.hpp

@@ -22,6 +22,15 @@
 
 namespace gui2 {
 
+	/**
+	 * Helper variable for the layout system.
+	 * 
+	 * @todo This is a kind of hack to make the layout engine work properly.
+	 * Wrapping needs the cache disabled but the scrollbars need it enabled. 
+	 * But the entire layout code needs a review and probably a rewrite...
+	 */ 
+	extern bool disable_cache;
+
 /**
  * Base container class.
  *

src/gui/widgets/window.cpp

@@ -375,6 +375,7 @@ void twindow::layout()
 		// Too wide and we can wrap, try that.
 		if(static_cast<size_t>(size.x) > settings::screen_width && can_wrap()) {
 			DBG_G_L << "twindow " << __func__ << ": start wrapping.\n";
+			disable_cache = true;
 			if(set_width_constrain(settings::screen_width
 					-  conf->left_border - conf->right_border)) {
 
@@ -383,6 +384,7 @@ void twindow::layout()
 					<< ": After wrapping : " << size << ".\n";
 			} else {
 				DBG_G_L << "twindow " << __func__ << ": wrapping failed.\n";
+				disable_cache = false;
 			}
 		}
 
@@ -444,6 +446,7 @@ void twindow::layout()
 
 	// Make sure the contrains are cleared, they might be partially set.
 	clear_width_constrain();
+	disable_cache = false;
 	need_layout_ = false;
 }