CComponentsItem: move/rename doCenter()to base class CComponentsItem

So it's possible to use this method for all cc-items.
setCenterPos() comes now with parameter 'along_mode' (CC_ALONG_X, CC_ALONG_Y).
So it's possible to center in x or y direction. As default are
both directions predefined.

src/gui/buildinfo.cpp

@@ -3,7 +3,7 @@
 	Copyright (C) 2001 by Steffen Hehn 'McClean'
 
 	Copyright (C) 2013, M. Liebmann 'micha-bbg'
-	Copyright (C) 2013, Thilo Graf 'dbt'
+	Copyright (C) 2013-2014, Thilo Graf 'dbt'
 
 	License: GPL
 
@@ -43,7 +43,7 @@ CBuildInfo::CBuildInfo() : CComponentsWindow(0, 0, 700, 500, LOCALE_BUILDINFO_ME
 //init all var members
 void CBuildInfo::initVarBuildInfo()
 {
-	doCenter();
+	setCenterPos();
 
 	font = NULL;
 	setWindowHeaderButtons(CComponentsHeader::CC_BTN_MENU | CComponentsHeader::CC_BTN_EXIT);

src/gui/components/cc_base.h

@@ -3,7 +3,7 @@
 	Copyright (C) 2001 by Steffen Hehn 'McClean'
 
 	Classes for generic GUI-related components.
-	Copyright (C) 2012, 2013, Thilo Graf 'dbt'
+	Copyright (C) 2012-2014, Thilo Graf 'dbt'
 
 	License: GPL
 
@@ -294,6 +294,9 @@ class CComponentsItem : public CComponents
 		///set x and y position as percent value from current parent or screen dimensions at once
 		///Note: position of bound components (items) means position related within parent form, not for screen!
 		virtual void setPosP(const uint8_t& xpos_percent, const uint8_t& ypos_percent);
+
+		///do center item on screen or within a parent form, parameter along_mode assigns direction of centering
+		virtual void setCenterPos(int along_mode = CC_ALONG_X | CC_ALONG_Y);
 };
 
 #endif

src/gui/components/cc_frm_window.cpp

@@ -29,7 +29,6 @@
 #include <global.h>
 #include <neutrino.h>
 #include "cc_frm_window.h"
-#include <driver/screen_max.h>
 
 using namespace std;
 
@@ -146,11 +145,6 @@ void CComponentsWindow::initWindowPos()
 		y = frameBuffer->getScreenY();
 }
 
-void CComponentsWindow::doCenter(){
-	x = cc_parent ? cc_parent->getWidth() - width/2 : getScreenStartX(width);
-	y = cc_parent ? cc_parent->getHeight() - height/2 : getScreenStartY(height);
-}
-
 void CComponentsWindow::setWindowCaption(neutrino_locale_t locale_text, const int& align_mode)
 {
 	ccw_caption = g_Locale->getText(locale_text);

src/gui/components/cc_frm_window.h

@@ -90,8 +90,6 @@ class CComponentsWindow : public CComponentsForm
 					fb_pixel_t color_frame = COL_MENUCONTENT_PLUS_6,
 					fb_pixel_t color_body = COL_MENUCONTENT_PLUS_0,
 					fb_pixel_t color_shadow = COL_MENUCONTENTDARK_PLUS_0);
-		///allow centering of window on screen, mostly senseful for window object without parent
-		void doCenter();
 		///initialize width and height
 		void initWindowSize();
 		///initialize position

src/gui/components/cc_item.cpp

@@ -182,3 +182,11 @@ void CComponentsItem::setPosP(const uint8_t& xpos_percent, const uint8_t& ypos_p
 	setXPosP(xpos_percent);
 	setYPosP(ypos_percent);
 }
+
+void CComponentsItem::setCenterPos(int along_mode)
+{
+	if (along_mode & CC_ALONG_X)
+		x = cc_parent ? cc_parent->getWidth() - width/2 : getScreenStartX(width);
+	if (along_mode & CC_ALONG_Y)
+		y = cc_parent ? cc_parent->getHeight() - height/2 : getScreenStartY(height);
+}

src/gui/components/cc_types.h

@@ -3,7 +3,7 @@
 	Copyright (C) 2001 by Steffen Hehn 'McClean'
 
 	Classes for generic GUI-related components.
-	Copyright (C) 2012, 2013, Thilo Graf 'dbt'
+	Copyright (C) 2012-2014, Thilo Graf 'dbt'
 
 	License: GPL
 
@@ -110,6 +110,13 @@ enum
 	CC_ALIGN_VER_CENTER	= 32
 };
 
+//item centering modes, see also CComponentsItem::setCenterPos()
+enum
+{
+	CC_ALONG_X 		= 1,
+	CC_ALONG_Y 		= 2
+};
+
 enum
 {
 	CC_ITEMBOX_ICON,