E:/project/Anoria2/bigworld/anoria/res/scripts/client/Helpers/PyGUI/SmoothMover.py

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import BigWorld, GUI, Math, Keys

from PyGUIBase import PyGUIBase

"""
This class implements a smooth moving gui control.  The gui
control must have a matrix shader attached called transform
since we refer directly to "self.component.transfor" in the SmoothMover.
"""
class SmoothMover( PyGUIBase ):

        factoryString="PyGUI.SmoothMover"

        def __init__( self, component ):
                PyGUIBase.__init__( self, component )
                self.minScroll = [0,0]
                self.maxScroll = [0,0]
                self.scroll = [0,0]
                self.scrollSpeed = 0.5
                self.scrollTransform = Math.Matrix()
                self.scrollTransform.setIdentity()

        def scrollTo( self, x, y, animate=True ):
                self.scroll[0] = max( x, self.minScroll[0] )
                self.scroll[0] = min( self.scroll[0], self.maxScroll[0] )
                self.scroll[1] = max( y, self.minScroll[1] )
                self.scroll[1] = min( self.scroll[1], self.maxScroll[1] )
                self.scrollTransform.setTranslate((self.scroll[0],self.scroll[1],0))
                self.component.transform.target = self.scrollTransform
                self.component.transform.eta = self.scrollSpeed if animate else 0.0

        def scrollBy( self, x, y ):
                self.scrollTo( self.scroll[0] + x, self.scroll[1] + y )

        def canScrollUp( self ):
                return (self.scroll[1] > self.minScroll[1]+0.0001)

        def canScrollDown( self ):
                return (self.scroll[1] < self.maxScroll[1]-0.0001)

        def canScrollLeft( self ):
                return (self.scroll[0] > self.minScroll[0]+0.0001)

        def canScrollRight( self ):
                return (self.scroll[0] < self.maxScroll[0]-0.0001)