Fix some crashes related to custom button layout handling

Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>

src/MachBunt.cpp

@@ -308,6 +308,7 @@ void MachBunt::reset( unsigned long changed )
 
 int MachBunt::mapButton( const TQChar &c)
 {
+   if (c.isNull()) return -1;
    switch (c.latin1())
    {
       case 'M':
@@ -324,7 +325,7 @@ int MachBunt::mapButton( const TQChar &c)
         return BtnClose;
    }
    // something went wrong
-   tqDebug("unknown Button to map \"%c\"", c.latin1() );
+   tqDebug("unknown Button to map: %c\n", c.latin1() );
    return -1;
 }
 
@@ -336,11 +337,14 @@ void MachBunt::doLayout()
     titlebar     = new TQSpacerItem ( 0, titleHeight, TQSizePolicy::Expanding,
 				     TQSizePolicy::Fixed);
     TQBoxLayout *topLayout = new TQBoxLayout(windowLayout, TQBoxLayout::LeftToRight, 0, 0);
-#if 1
+
+    TQString leftButtons(options()->customButtonPositions() ? options()->titleButtonsLeft() : "M");
+    TQString rightButtons(options()->customButtonPositions() ? options()->titleButtonsRight() : "HIAX");
+
     bool first_left = true;
     for ( unsigned int i = 0; i <options()->titleButtonsLeft().length(); i++)
     {
-       int b = mapButton(options()->titleButtonsLeft()[i]);
+       int b = mapButton(leftButtons[i]);
        if ( b>=0 ){
           topLayout->addWidget(button[b], TQt::AlignVCenter);
 	  topLayout->setStretchFactor(button[b], 0);
@@ -355,41 +359,10 @@ void MachBunt::doLayout()
 
     topLayout->addItem(titlebar);
 
-#else
-    topLayout->addWidget(button[BtnMenu], TQt::AlignVCenter);
-    topLayout->setStretchFactor(button[BtnMenu], 0);
-    button[BtnMenu]->setFixedSize(titleHeight, titleHeight);
-    button[BtnMenu]->setPosition( ButtonLeft );
-
-    topLayout->addItem(titlebar);
-
-    topLayout->addWidget(button[BtnHelp], TQt::AlignVCenter);
-    topLayout->setStretchFactor(button[BtnHelp], 0);
-    button[BtnHelp]->setFixedSize(titleHeight, titleHeight);
-
-    topLayout->addWidget(button[BtnIconify], TQt::AlignVCenter);
-    topLayout->setStretchFactor(button[BtnIconify], 0);
-    button[BtnIconify]->setFixedSize(titleHeight, titleHeight);
-
-    topLayout->addWidget(button[BtnMax], TQt::AlignVCenter);
-    topLayout->setStretchFactor(button[BtnMax], 0);
-    button[BtnMax]->setFixedSize(titleHeight, titleHeight);
-
-    topLayout->addWidget(button[BtnClose], TQt::AlignVCenter);
-    topLayout->setStretchFactor(button[BtnClose], 0);
-    button[BtnClose]->setFixedSize(titleHeight, titleHeight);
-    button[BtnClose]->setPosition( ButtonRight );
-
-    if ( !isMinimizable() )
-	button[BtnIconify]->hide();
-    if ( !isMaximizable() )
-	button[BtnMax]->hide();
-#endif
-#if 1
     MachBuntButton* last_right = NULL;
     for ( unsigned int i = 0; i <options()->titleButtonsRight().length(); i++)
     {
-       int b = mapButton(options()->titleButtonsRight()[i]);
+       int b = mapButton(rightButtons[i]);
        if ( b>=0 ){
           topLayout->addWidget(button[b], TQt::AlignVCenter);
 	  topLayout->setStretchFactor(button[b], 0);
@@ -399,7 +372,6 @@ void MachBunt::doLayout()
     }
     if( last_right )
         last_right->setPosition( ButtonRight );
-#endif
 
     TQHBoxLayout * midLayout   = new TQHBoxLayout(windowLayout, 0, 0);
     midLayout->addSpacing(BORDER_LEFT);