from tree import Tree, Node
from Tkinter import Tk, Label, ALL, Menu, IntVar, StringVar, Toplevel, TclError
########################################################################
##
## Author Michel Sanner Yong Zhao Copyright TSRI (C) 2013 
##
########################################################################
#
# $Header: /mnt/raid/services/cvs/python/packages/share1.5/mglutil/gui/BasicWidgets/Tk/trees/TreeWithButtons.py,v 1.72.2.2 2017/08/07 22:30:40 mgltools Exp $
#
# $Id: TreeWithButtons.py,v 1.72.2.2 2017/08/07 22:30:40 mgltools Exp $
#
from Pmw import Balloon
from mglutil.util.callback import CallbackFunction

from MolKit.molecule import Atom, Molecule
from MolKit.protein import Residue, Chain


## BUGS: select a range and expand inside the range
##       select 2 ranges

class ColumnDescriptor:
    """ """
    def __init__(self, name, cmd, btype='checkbutton', 
                 buttonShape='circle', buttonColors = ['white', 'green'],
                 inherited=True, title=None, color='black',
                 objClassHasNoButton=None, showPercent=False,
                 buttonBalloon=None, onButtonBalloon=None,
                 offButtonBalloon=None):

        self.tree = None
        self.canvas = None
        self.inherited = inherited
        self.title = title
        self.name = name
        self.color = 'black', #color # column color for outline and label
        self.showPercent = showPercent
        
        self.cmd = cmd  # should be (cmd, *args, **kw)

        self.cbOn = None # used to specify a call back for the on button
        self.cbOff = None # used to specify a call back for the on button
        self.onOnly = False # when True we create only 1 button for OnOff

        if buttonBalloon is None:
            buttonBalloon = """left-click execute cmd on %s
right click set options"""
        self.buttonBalloon = buttonBalloon

        if onButtonBalloon is None:
            onButtonBalloon = """left-click execute cmd on %s
right click set options"""
        self.onButtonBalloon = onButtonBalloon

        if offButtonBalloon is None:
            offButtonBalloon = """left-click execute cmd on %s
right click set options"""
        self.offButtonBalloon = offButtonBalloon

        
        # menu for command selection panel
        self.menu = None

        # menu for command option setting
        self.optMenu = None

        assert btype in ['checkbutton', 'button'], btype
        self.commandType = btype

        self.buttonShape = buttonShape
        self.buttonColors = buttonColors

        # list classes of objects for which this column should have no buttons
        if objClassHasNoButton is None:
            self.objClassHasNoButton = [NodeWithoutButtons]
        else:
            self.objClassHasNoButton = objClassHasNoButton


    def isOn(self, node):
        # subclass to implement decision for checkbutton value on/off
        # when node is first created
        return 0

    
    def optMenu_cb(self, node, column, event=None, master=None,
                   postCreationFunc=None):
        cmd, args, kw = self.cmd
        if master is None:
            master = self.tree.master
        form = cmd.showForm(posx=event.x_root, posy=event.y_root, root=master,
                            okcancel=0, help=0, modal=0, blocking=0,
                            postCreationFunc=postCreationFunc)
        return form
        

    def _getNodes(self, node, colInd):
        # added so that MVColumnDescriptor can override
        #print 'TREEWITHBUTTONS _getNodes', node
        return node.getObjects(colInd)


    def execute(self, node, colInd):
        #print 'ColumnDescriptor.execute', node, colInd
        objects = self._getNodes(node, colInd)
        val = node.chkbtval[colInd]
        cmd, args, kw = self.cmd
        defaultValues = cmd.getLastUsedValues()
        defaultValues.update( kw )
        
        if  self.commandType == 'checkbutton':
            if defaultValues.has_key('negate'):
                defaultValues['negate'] = not val
            elif not val:
                return
        for objs in objects: # loop over list that might contain an atom set
                             # residue set, chain set and/or molecule set
            #print 'ColumnDescriptor execute GGGG', cmd, objs, args, defaultValues
            cmd ( *((objs,)+args), **defaultValues)



class TreeWithButtons(Tree):
    """Each node in the tree has an object associated in the node's .object
attribute.  The objects are expected to have a .parent and a .children
attribute describing the hierarchy."""
    
    def __init__(self, master, root, iconsManager=None, idleRedraw=True,
                 nodeHeight=15, headerHeight=0, treeWidth=160,
                 balloon=None, **kw):

        Tree.__init__(self, master, root, iconsManager=iconsManager,
                      idleRedraw=idleRedraw, nodeHeight=nodeHeight,
                      headerHeight=headerHeight, balloon=balloon, **kw)

        self.objectToNode = {}  # key is object, values if Node instance
        self.objectToNode[root.object] = root
        
        self.nbCol = 0  # number of columns of buttons
        self.columns = [] # list of ColumnDescriptor instance
        self.balloon = Balloon(master)

        self.colLabIds = []

        self.colWidth = 17 # width of each column in pixels
        w = self.treeWidth = treeWidth # width of the tree part of the widget
        self.newTreeWidth = 0 # used to widen tree whebn labels gets long
        self.prevX = 0
        self.prevY = 0

        # draw the divider between tree and buttons
        canvas = self.canvas

        id_ = canvas.create_line( w-6, 0, w-6, 1000, fill='grey75', width=3)
        self.dividerCanvasId = id_
        canvas.tag_bind(id_,"<Enter>", self.enterDivider_cb)
        canvas.tag_bind(id_,"<Leave>", self.leaveDivider_cb)
        canvas.tag_bind(id_,"<Button-1>", self.dividePress_cb)
        canvas.tag_bind(id_,"<ButtonRelease-1>", self.divideRelease_cb)
        #id_ = canvas.create_line( w+1, 0, w+1, 1000, fill='grey75')
        #self.dividerCanvasIds.append(id_)
        
        self.crosshairTk = None
        self.canvas.bind("<Leave>", self.leave_cb)
        self.circlesForOnOff = True
        self.lastHighligted = None
        self.minTreeWidth = 0 # width of buttons above tree
                              # used to prevent divider to move to far left

    def enterDivider_cb(self, event):
        self.canvas.config(cursor='sb_h_double_arrow')


    def leaveDivider_cb(self, event):
        self.canvas.config(cursor='')


    def dividePress_cb(self, event):
        self.treeWidthOff = off = event.x_root-self.treeWidth
        self.canvas.bind("<Motion>", self.moveDivider_cb)
        #self.canvas.winfo_toplevel().grab_set_global()


    def divideRelease_cb(self, event):
        #self.canvas.winfo_toplevel().grab_release()
        self.canvas.unbind("<Motion>")
        self.redraw()

        
    def moveDivider_cb(self, event):
        tw = event.x_root-self.treeWidthOff
        off = tw - self.treeWidth
        self.setTreeWidth(max(self.minTreeWidth,
                              event.x_root - self.treeWidthOff))


    def setTreeWidth(self, width):
        width = min(width, self.canvas.winfo_width())
        off = width-self.treeWidth
        self.treeWidth = width
        self.canvas.move(self.dividerCanvasId, off, 0)
        self.canvas.move('ColHeaders', off, 0)
        self.canvas.move('backgroundStripes', off, 0)
        self.canvas.move('button', off, 0)
        self.redraw(force=1)
        
    def reallyRedraw(self, force=False):
        Tree.reallyRedraw(self, force=force)
        if self.newTreeWidth > self.treeWidth:
            self.setTreeWidth(self.newTreeWidth)
            self.newTreeWidth = 0
            self.redraw()

        
    def redraw(self, force=False, event=None):
        Tree.redraw(self, force=force)
        if self.crosshairTk and event:
            self.move_cb(event)

    ## CROSSHAIR
    def enter_cb(self, event=None):
        """add crosshair"""
        #print 'enter', event.widget
        Tree.enter_cb(self)
        canvas = self.canvas
        self.crosshairTk = canvas.create_line(0,0,0,0,0,0,0,0,0,0,
                                              fill='#35A8FF', width=2)
        canvas.bind("<Motion>", self.move_cb)
        canvas.tag_lower(self.crosshairTk)
        canvas.tag_lower('backgroundStripes')

        self.canvas.configure(state='normal')


    def leave_cb(self, event=None):
        """destroy crosshair"""
        #print 'leave', event.widget
        #self.canvas.unbind("<Motion>")
        #print 'deleting crosshair'
        self.canvas.delete(self.crosshairTk)
        self.crosshairTk = None
        self.canvas.configure(state='disabled')


    def move_cb(self,event):
        """move crosshair"""
        if self.crosshairTk is None:
            return
        #print 'move crosshair', event.widget
        canvas = self.canvas
        x1, y1, x2, y2 = canvas.bbox(ALL)
        #print 'move crosshair',  x1, y1, x2, y2
        x = canvas.canvasx(event.x)
        y = canvas.canvasy(event.y)
        if isinstance(event.widget, Label):
            x = x + event.widget.winfo_x()
            y = y + event.widget.winfo_y()
        h = 0#self.headerHeight - 10
        x2 += 100000
        y2 += 100000
        canvas.coords( self.crosshairTk, x1, y, x2, y, x2, y2, x, y2, x, h )

        # take care of higlighting on or off button circle for OnOff buttons
        if self.lastHighligted:
            canvas.itemconfig(self.lastHighligted,
                              outline=self.lastHighligtedColor, width=1)
        tags = canvas.gettags('current')
        if len(tags):
            if tags[0]=='on' or tags[0]=='off':
                cid = int(tags[3])
                self.lastHighligted = cid
                self.lastHighligtedColor = canvas.itemcget(cid, 'outline')
                canvas.itemconfig(cid, outline='blue', width=2)
            else:
                self.lastHighligted = None

            
    def redrawHeader(self, *args):
        canvas = self.canvas
        ypos = (self.firstVisibleNodeLineNum * self.nodeHeight) + \
               (self.headerHeight * 0.5)
        dims = canvas.coords('ColHeaders')
        if len(dims):
            x, y = dims
        else:
            y = 0
        #if ypos-y-5.5:
        #    print 'MOVING HEADER', ypos-y-5.5, ypos, y
        canvas.move('ColHeaders', 0, ypos-y-5.5)
        #canvas.move('backgroundStripes', 0, ypos-y-5.5)
        dims = canvas.coords('dashButtons')
        if len(dims):
            x, y = dims
        else:
            y = 0
        #print 'REDRAW1', x, y, ypos, 0, ypos-y
        canvas.move('dashButtons', 0, ypos-y)


    def undisplay(self):
        for node in self.displayedNodes:
            node.deleteNodeIcons()
        
        
    def resetDisplayedNodes(self):
        # delete these list to force the nodes to recreate them
        for node in self.displayedNodes:
            node.chkbtid = []
            node.needsRedraw = True


    def addColumnDescriptor(self, columnDescr):
        assert isinstance(columnDescr, ColumnDescriptor)
        columnDescr.tree = self
        columnDescr.canvas = self.canvas

        # make titles use alternate lines
        #if self.nbCol%2:
        #    columnDescr.title = '\n'+columnDescr.title
        #else:
        #    columnDescr.title += '\n'

        self.createColHeader(columnDescr, self.nbCol)

        #columnDescr.setMenuEntries(columnDescr.menuEntries)
        self.columns.append(columnDescr)
        self.root.chkbtval.append(0)
        self.nbCol += 1
        self.resetDisplayedNodes()
        self.redraw()


    def setColumnWidth(self, cw):
        self.colWidth = cw
        self.canvas.delete('backgroundStripes')
        self.canvas.delete('ColHeaders')
        for i, col in enumerate(self.columns):
            self.createColHeader(col, i)
            
        self.redraw()


    def createColHeader(self, columnDescr, number):
        # in this version the column headers are on same canvas as tree
        cw = self.colWidth
        x = self.treeWidth + (0.5*self.colWidth)
        canvas = self.canvas
        # add column background
        if number%2:
            _id = canvas.create_rectangle(
                x+number*cw-cw/2, 0, x+number*cw+cw/2, 10000,
                tags=('backgroundStripes',), fill='#DDDDDD', outline='#DDDDDD')
            
        # add title and icon
        _id = canvas.create_text(
            x+number*cw, 7, text=columnDescr.title, justify='center',
            tags=('ColHeaders',), fill=columnDescr.color, font=self.font)
        cb = CallbackFunction(self.rightButtonClick, columnDescr)
        canvas.tag_bind(_id, "<Button-3>", cb)
        self.colLabIds.append(_id)

        # add column header icons
        if columnDescr.iconfile:
            if columnDescr.icon is None:
                columnDescr.getIcon(columnDescr.iconfile)
            _id = canvas.create_image(
                x+number*cw, 19,tags=('ColHeaders',),
                    image=columnDescr.icon)
        self.colLabIds.append(_id)


    def rightButtonClick(self, columnDescr, event):
        print 'right click on', columnDescr

        
    def deleteColumnDescriptor(self, columnDescr):
        if isinstance(columnDescr, int):
            columnDescr = self.columns[columnDescr]
            ind = columnDescr
        else:
            ind = self.columns.index(columnDescr)

        assert isinstance(columnDescr, ColumnDescriptor)

        columnDescr.tree = None
        columnDescr.canvas = None

        self.columns.remove(columnDescr)
        chkbtval = self.root.chkbtval
        self.root.chkbtval = chkbtval[:ind] + chkbtval[ind+1:]
        self.nbCol -= 1
        self.resetDisplayedNodes()
        self.redraw()


    def insertColumnDescriptor(self, column, columnDescr):

        assert isinstance(columnDescr, ColumnDescriptor)
        columnDescr.tree = self
        columnDescr.canvas = tree.canvas

        self.columns.insert(column, columnDescr)
        self.root.chkbtval.insert(column, 0)
        self.nbCol += 1
        self.resetDisplayedNodes()
        self.redraw()


    def createNodeForObject(self, object):
        """given an object if the corresponding Node is not yet created
for its creation by expanding all its ancestors"""
        try:
            return self.objectToNode[object]
        except KeyError:
            p = object.parent
            ancestors = [p]
            while p and not self.objectToNode.get(p, None):
                ancestors.append(p)
                p = p.parent
            ancestors.append(p)
            ancestors.reverse()
            for p in ancestors:
                self.objectToNode[p].expand()
            return self.objectToNode[object]


    def manageChildren(self, node, column):
        # sets the checkbutton of all children to value of parent (i.e. node)
        if len(node.children)==0:
            return

        val = node.chkbtval[column]
        from MolKit.listSet import ListSet
        from MolKit.molecule import MolecularSystem
        for c in node.children:
            if isinstance(c.object, (ListSet, MolecularSystem)):
                continue
            c.chkbtval[column] = val
            if c in self.displayedNodes:
                c.needsRedraw = True
            self.manageChildren(c, column)
        self.redraw()



class NodeWithButtons(Node):
    """ """
    def __init__(self, object, parent, buttonType=None):

        Node.__init__(self, object, parent)

        # list of values used to emulate buttons and associated Tk ids
        # created in drawNodeCustomization
        if parent:
            chkbtval = []
            pchkbtval = parent.chkbtval
            for i, c in enumerate(parent.tree().columns):
                if c.inherited:
                    chkbtval.append(pchkbtval[i])
                else:
                    chkbtval.append(c.isOn(self))
            self.chkbtval = chkbtval
        else:
            self.chkbtval = []
        self.chkbtid = []
        self.buttonType = buttonType # can be 'OnOffButtons'


    def __repr__(self):
        if hasattr(self,'name'):
            return self.name
        if hasattr(self.object,'name'):
            return self.object.name
        else:
            return ""
            

    def isExpandable(self):
        """Returns true if this node has children"""
        if hasattr(self.object,'children'):
            return len(self.getChildren())
        else:
            return False

    def fitText(self, x, y, tree, canvas, text, font):
        tree = self.tree()
        labelTkid = canvas.create_text(x, y, text=text, font=font)
        bb = canvas.bbox(labelTkid)
        clength = x+bb[2]-bb[0]+10
        #print 'AAAAAAAAAAAAA', text, clength, tree.treeWidth, x, bb, font
        if clength > tree.treeWidth:
            # remove characters in the center until it is short enough
            mid = len(text)/2
            off = 1
            maxOff = len(text)/2
            ctext = '...'
            while clength > tree.treeWidth and off <maxOff:
                off += 1
                ctext = text[:mid-off]+'...'+text[mid+off:]
                canvas.delete(labelTkid)
                labelTkid = canvas.create_text(x, y, text=ctext, font=tree.font)
                bb = canvas.bbox(labelTkid)
                #print '    BBBBB', off, ctext, clength, tree.treeWidth
                clength = x+bb[2]-bb[0]+10
            text = ctext
        canvas.delete(labelTkid)
        #print 'RETURN', text

        return text


    def drawNodeLabel(self, x, y):
        # sub class to increase tree width of label gets wider
        tree = self.tree()
        x = Node.drawNodeLabel(self, x, y)
        canvas = tree.canvas
        if self.labelTkid:
            bb = canvas.bbox(self.labelTkid)
        #if bb[2]>tree.treeWidth:
        #    tree.newTreeWidth = bb[2]
        return x
    

    def drawNodeCustomization(self, x, y):
        """
        Add things to the rigth side of the tree
        """
        tree = self.tree()
        canvas = tree.canvas
        level = 2
        col = ['gray75', 'red', 'cyan', 'green', 'yellow']

        nbButtons = tree.nbCol
        x = tree.treeWidth
        # create Tk variables if needed
        if len(self.chkbtid)==0:
            nbButtons = tree.nbCol
            self.chkbtid = [None]*nbButtons

        i = 0
        cw = tree.colWidth
        for i, val in enumerate(self.chkbtval):
            col = tree.columns[i]
            if self.object.__class__ in col.objClassHasNoButton:
                continue

            xo = x+i*cw
            cw2 = cw/2
            midx = xo+cw2
            midy = y + tree.fontSize/2 + 2
            cid1 = None
            color = col.color
            width = 1

            if self.buttonType=='OnOffButtons' and not col.onOnly:
                # overrides col.commandType and put 2 buttons for on off
                #uniq = '%d_%d'%(midx,midy)
                cid = canvas.create_oval(
                    midx-cw2+1, midy-cw2+1, midx+1, midy+1, outline='#3D8E54',
                    width=width, fill='#44A05E',
                    tags=('on','button',self.nodeTkTag), )
                canvas.addtag_withtag(str(cid), cid)

                if col.cbOn is None:
                    cb1 = CallbackFunction(self.onOffButtonClick, i, 1)
                else:
                    cb1 = CallbackFunction(col.cbOn, self, i, 1)
                    
                cb2 = CallbackFunction(col.optMenu_cb, self, i)
                balloon = col.onButtonBalloon%(self.object.name)

                cid1 = canvas.create_oval(
                    midx-1, midy-1, midx+cw2-1, midy+cw2-1, outline='#B52121',
                    width=width, fill='#E2282D',
                    tags=('off','button',self.nodeTkTag))
                canvas.addtag_withtag(str(cid1), cid1)

                if col.cbOff is None:
                    cb1_1 = CallbackFunction(self.onOffButtonClick, i, 0 )
                else:
                    cb1_1 = CallbackFunction(col.cbOff, self, i, 0)
                cb2_1 = None
                balloon1 = col.offButtonBalloon%(self.object.name)

            else:
                shape = col.buttonShape
                sx2 = cw/2-2
                sy2 = tree.fontSize/2
                fill = col.buttonColors
                from MolKit.listSet import ListSet
                from MolKit.molecule import MolecularSystem
                if shape=='circle':
                    sy2 = min(sx2, sy2)
                    if col.showPercent: fillCol = fill[0]
                    else: fillCol = fill[val]
                    cid = canvas.create_oval(
                        midx-sx2, midy-sy2, midx+sx2, midy+sy2, outline=color,
                        width=width, fill=fillCol, tags=('button',self.nodeTkTag))

                    if isinstance(self.object, (ListSet, MolecularSystem)):
                        # sets we paint the button red if the next click will trigger
                        # an undisplay and green if the next click will trigger a display
                        val = self.chkbtval[i]
                        if val:
                            canvas.itemconfig(cid, outline='#AA0000')
                        else:
                            canvas.itemconfig(cid, outline='#00AA00')

                    if col.showPercent and not isinstance(self.object, (ListSet, MolecularSystem)):
                        if hasattr(self.object,col.showPercent):
                            extent = getattr(self.object,col.showPercent)*360
                            if extent>0.0:
                                #print 'YES', self.object.name, col.showPercent, extent
                                if extent==360.:
                                    # special case full disc as sometimes
                                    # extent 360 shows nothing
                                    cid1 = canvas.create_oval(
                                        midx-sx2, midy-sy2, midx+sx2, midy+sy2,
                                        fill=fill[1], outline='',
                                        tags=('button',self.nodeTkTag))
                                    self.chkbtval[i] = 1
                                else:
                                    cid1 = canvas.create_arc(
                                        midx-sx2, midy-sy2, midx+sx2, midy+sy2,
                                        extent=-extent, fill=fill[1],
                                        outline='', tags=('button',self.nodeTkTag))
                                    self.chkbtval[i] = 0
                            else: # extent <= 0
                                self.chkbtval[i] = 0
                        else:
                            self.chkbtval[i] = 0

                        ##
                        ## attempt to make set display status but not working
                        ##
                        ## extent = 0.0
                        ## for objList in self.getNodes(i).values():
                        ##     for obj in objList:
                        ##         if hasattr(obj,col.showPercent):
                        ##             for val in getattr(obj,col.showPercent):
                        ##                 extent += val
                        ## extent *= 360
                        ## print 'BBB', self.object, col.showPercent, extent
                        ## if extent>0.0:
                        ##     #print 'YES', self.object.name, col.showPercent, extent
                        ##     if extent==360.:
                        ##         # special case full disc as sometimes
                        ##         # extent 360 shows nothing
                        ##         cid1 = canvas.create_oval(
                        ##             midx-sx2, midy-sy2, midx+sx2, midy+sy2,
                        ##             fill=fill[1], outline='',
                        ##             tags=('button',self.nodeTkTag))
                        ##         self.chkbtval[i] = 1
                        ##     else:
                        ##         cid1 = canvas.create_arc(
                        ##             midx-sx2, midy-sy2, midx+sx2, midy+sy2,
                        ##             extent=-extent, fill=fill[1],
                        ##             outline='', tags=('button',self.nodeTkTag))
                        ##         self.chkbtval[i] = 0
                        ## else:
                        ##     self.chkbtval[i] = 0

                elif shape=='oval':
                    cid = canvas.create_oval(
                        midx-dx, midy-dx, midx+dx, midy+dy, outline=color,
                        width=width, fill=fill[val], tags=('button',self.nodeTkTag))

                elif shape=='square':
                    dx = min(sx2, sy2)
                    cid = canvas.create_rectangle(
                        midx-dx, midy-dx, midx+dx, midy+dy, outline=color,
                        width=width, tags=('button',self.nodeTkTag))# fill=fill[val])

                elif shape=='downTriangle':
                    cid = canvas.create_polygon(
                        midx-sx2, midy-sy2, midx+sx2, midy-sy2,
                        midx, midy+sy2, midx-sx2, midy-sy2,
                        outline=color, width=width, fill=fill[val],
                        tags=('button',self.nodeTkTag))

                elif shape=='rectangle':
                    if col.showPercent: fillCol = fill[0]
                    else: fillCol = fill[val]
                    cid = canvas.create_rectangle(
                        midx-sx2, midy-sy2, midx+sx2, midy+sy2, outline=color,
                        width=width, fill=fillCol, tags=('button',self.nodeTkTag))
                    if col.showPercent and not isinstance(self.object, ListSet):
                        if hasattr(self.object,col.showPercent):
                            extent = getattr(self.object, col.showPercent)
                            #print 'Redraw 1', self.object, extent
                            if extent>0.0:
                                cid1 = canvas.create_rectangle(
                                    midx-sx2+1, midy+sy2,
                                    midx+sx2-1, midy-sy2+2*sy2*(1.-extent),
                                    fill=fill[1], outline='', tags=('button',self.nodeTkTag))
                                self.chkbtval[i] = int(extent)
                            else:
                                self.chkbtval[i] = 0
                                
                elif shape=='diamond':
                    hw = sx2
                    hh = sy2
                    cid = canvas.create_polygon(
                        midx, midy-sy, midx+sx, midy,
                        midx, midy+sy, midx-sx, midy, midx, midy-sy,
                        fill=fill[val], width=width, outline=color,
                        tags=('button',self.nodeTkTag))

                if cid1:
                    cb1_1 = CallbackFunction(self.buttonClick, i )
                    cb2_1 = CallbackFunction(col.optMenu_cb, self, i )
                    balloon1 = col.buttonBalloon%(self.object.full_name())
 
                if col.cbOn is None:
                    cb1 = CallbackFunction(self.buttonClick, i )
                else:
                    cb1 = CallbackFunction(col.cbOn, self, i, 1)
                    
                if col.cbOff is None:
                    cb2 = CallbackFunction(col.optMenu_cb, self, i )
                else:
                    cb2 = CallbackFunction(col.cbOff, self, i, 0)

                balloon = col.buttonBalloon%(self.object.full_name())

            if cid1:
                canvas.tag_raise(cid1)
                canvas.tag_bind(cid1, "<ButtonRelease-1>", cb1_1)
                if cb2_1: canvas.tag_bind(cid1, "<ButtonRelease-3>", cb2_1)
                tree.balloon.tagbind(canvas, cid1, balloon1)
                self.canvasIDs.append(cid1)
                self.chkbtid[i] = cid1
                
            canvas.tag_bind(cid, "<ButtonRelease-1>", cb1)
            canvas.tag_bind(cid, "<ButtonRelease-3>", cb2)

            tree.balloon.tagbind(canvas, cid, balloon)
            self.canvasIDs.append(cid)
            self.chkbtid[i] = cid

            nodeHeight = tree.nodeHeight

            ## MS 09/10 this is molecular stuff, should not be in mglutil
            # add secondary structure glyph
            molFrag = self.object
            if isinstance(molFrag, Residue):
                if hasattr(molFrag, 'secondarystructure'):
                    ssname = molFrag.secondarystructure.name
                    if ssname[:6]=='Strand': color = '#FFFC6D'
                    elif ssname[:4]=='Coil': color = 'grey45'
                    elif ssname[:5]=='Helix': color = '#FF198C'
                    elif ssname[:4]=='Turn': color = 'blue'

                    #tw = tree.treeWidth
                    tw = self.nodeStartX
                    cid = canvas.create_rectangle(
                        tw-20, y, tw-10, y+nodeHeight, outline=color,
                        fill=color, tags=(self.nodeTkTag,))

                    self.canvasIDs.append(cid)

                    tree.balloon.tagbind(canvas, cid, ssname)
                    cb = CallbackFunction(self.toggleResSelection,
                                          molFrag.secondarystructure.residues)
                    canvas.tag_bind(cid, "<ButtonRelease-1>", cb)
                    #cid = canvas.create_text( 152, y, text=ssname, anchor='nw')
#                    self.canvasIDs.append(cid)
        return x + (i*cw)
##             func = tree.buttonValFunc[i]
##             if func:
##                 func(self)

    def toggleResSelection(self, residues, event=None):
        #print 'FUGU toggleResSelection'
        tree = self.tree()
        for res in residues:
            node = tree.objectToNode[res]
            if node.isSelected:
                node.deselect()
            else:
                node.select(only=False)


    def deleteNodeIcons(self):
        Node.deleteNodeIcons(self)
        self.chkbtid = []


    def set(self, column, value):
        tree = self.tree()
        col = tree.columns[column]
        fill = col.buttonColors
        val = self.chkbtval[column]

        #print 'AAAAAAAA SET', self, id(self.chkbtval), col.name, value, val, len(self.chkbtid)
        if value:
            if val:
                #tree.redraw()
                return
            val = self.chkbtval[column] = 1
        else:
            if not val:
                #tree.redraw()
                return
            val = self.chkbtval[column] = 0

        if len(self.chkbtid): # length==0 when node is not drawn
            if self.chkbtid[column] and not col.showPercent:
                tree.canvas.itemconfigure(self.chkbtid[column], fill=fill[val])

            if col.commandType=='button' and val==1:
                cb = CallbackFunction(self.resetButtons, column)
                tree.master.after(100, cb)

            if col.inherited:
                tree.manageChildren(self, column)
        # MS added the redraw to force buttons with showPercent to update
        # a cheaper version might be possible
        #tree.redraw()
        

    def toggle(self, column):
        #print 'FUGU toggle', self, column, self.chkbtval[column]
        if not self.chkbtval[column]:
            self.set(column, 1)
        else:
            self.set(column, 0)
        self.tree().redraw(force=True)
##         if val==0:
##             val = self.chkbtval[column] = 1
##         else:
##             val = self.chkbtval[column] = 0

##         if len(self.chkbtid): # length==0 when node is not drawn
##             tree.canvas.itemconfigure(self.chkbtid[column], fill=fill[val])

##             if col.commandType=='button' and val==1:
##                 cb = CallbackFunction(self.resetButtons, column)
##                 tree.master.after(100, cb)

##             if col.inherited:
##                 tree.manageChildren(self, column)


    def onOffButtonClick(self, column, value, event=None, val=None, execute=True):
        # get called for onOffButtons on left click
        #print 'onOffButtonClick', value, execute, value
        self.set(column, value)
        tree = self.tree()
        col = tree.columns[column]
        
        if execute:
            col.pickEvent = event
            #print 'executing', col, column
            col.execute(self, column)
            tree.redraw(force=True)
        if event:
            try: # sometimes this generates a TclError. Not sure why MS 09/2010
                tree.move_cb(event) # to redraw crosshair
            except TclError:
                pass


    def buttonClick(self, column, event=None, val=None, execute=True):
        # get called for each checkbutton on left or right click
        # on right click the value is forced to 1

        tree = self.tree()
        col = tree.columns[column]

        #print 'button click', column, val, self.chkbtval[column]
##         if col.showPercent:
##             if self.chkbtval[column]==1:
##                 self.set(column, 0)
##             else:
##                 self.set(column, 1)
##         else:
##             if val is None:
##                 self.toggle(column)
##             else:
##                 self.set(column, val)
        if val is None:
            self.toggle(column)
        else:
            self.set(column, val)
         
        if execute:
            col.pickEvent = event
            col.execute(self, column)

        self.updateButtons(tree)

        
    def updateButtons(self, tree):
        # redraw all parents to update button status
        n = self
        while n:
            if n.currenty:
                n.nodeRedraw()
            n = n.parent

        # redraw all children to update button status
        n = self
        nfound = False
        for n1 in tree.displayedNodes:
            if n1==n:
                nfound = True
            elif nfound:
                n1.nodeRedraw()
        #tree.redraw(event)


    def resetButtons(self, column):
        if self.isSelected:
            for n in self.tree().selectedNodes:
                n.chkbtval[column] = 1
                n.buttonClick(column, execute=False)
        else:
            self.chkbtval[column] = 1
            self.buttonClick(column, execute=False)
        
        
    def postCmdMenu(self, column, event=None):
        tree = self.tree()
        menu = tree.columns[column].menu
        menu.post(event.x_root, event.y_root)


    def postCmdOptMenu(self, column, event=None):
        tree = self.tree()
        menu = tree.columns[column].optMenu
        menu.post(event.x_root, event.y_root)



class NodeWithoutButtons(NodeWithButtons):
 

    def drawNodeCustomization(self, x, y):
        """
        Add things to the rigth side of the tree
        """
        return 0
