def __init__(self, instance, panel):
        gtk.VBox.__init__(self)
        self.factory = DrawableFactory()
        self.workzone = instance
        self.logger = logging.getLogger("KRFEditor")
        self.photoshop = Photoshop(self)
        self.panel = panel
        
        vbox = gtk.VBox()
        hbox = gtk.HBox()
        hbox.pack_start(gtk.Label("atlas"), False, False, 0)
        self.pack_start(hbox, False, False, 0)
        self.pack_start(self.photoshop, True, True, 0)
        self.atlases = {}
        self.selectedSprites = []
        self.currentAtlas = None
        self.photoshop.connect("button-press-event", self._buttonPressedCb)
        self.photoshop.connect("button-release-event", self._buttonReleaseCb)
        self.photoshop.drawingArea.props.has_tooltip = True
        self.photoshop.drawingArea.connect("query-tooltip", self._queryTooltipCb)

        self.photoshop.eventBox.connect("key-press-event", self._keyPressedCb)
        self.photoshop.eventBox.connect("key-release-event", self._keyReleasedCb)
        
        self.photoshop.drawingArea.drag_dest_set(0, [], 0)
        self.photoshop.drawingArea.connect("motion-notify-event", self._cursorMovedCb);
        
        self.photoshop.drawingArea.set_events(gtk.gdk.EXPOSURE_MASK | gtk.gdk.LEAVE_NOTIFY_MASK |
                                              gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.POINTER_MOTION_MASK |
                                              gtk.gdk.BUTTON_RELEASE_MASK |
                                              gtk.gdk.POINTER_MOTION_HINT_MASK)

        self.detector = autoSpriteDetector()

        button = gtk.ToolButton("gtk-zoom-in")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoomInCb)

        button = gtk.ToolButton("gtk-zoom-out")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoomOutCb)

        button = gtk.ToolButton("gtk-zoom-fit")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoomFitCb)

        button = gtk.ToolButton("gtk-zoom-100")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoom100Cb)

        button = gtk.ToolButton("gtk-execute")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._autoDetectSpritesCb)

        button = gtk.ToolButton("gtk-preferences")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._configureDetectorCb)

        button = gtk.ToolButton("gtk-about")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._highlightAllCb)

        self.posLabel = gtk.Label()
        hbox.pack_end(self.posLabel, False, False, 0)

        self.show_all()

        self._setupPopup() #push the funk up
        self.modCtrl = False
        self.modShift = False
        self.selected = None
    def __init__(self, instance):
        gtk.VBox.__init__(self)
        self.factory = DrawableFactory()
        self.workzone = instance
        self.logger = logging.getLogger("KRFEditor")
        self.photoshop = Photoshop(self)
        vbox = gtk.VBox()
        hbox = gtk.HBox()
        hbox.pack_start(gtk.Label("atlas"), False, False, 0)
        self.pack_start(hbox, False, False, 0)
        self.pack_start(self.photoshop, True, True, 0)
        self.atlases = {}
        self.selectedSprites = []
        self.currentAtlas = None
        self.photoshop.connect("button-press-event", self._buttonReleasedCb)
        self.photoshop.drawingArea.props.has_tooltip = True
        self.photoshop.drawingArea.connect("query-tooltip", self._queryTooltipCb)

        self.photoshop.eventBox.connect("key-press-event", self._keyPressedCb)
        self.photoshop.eventBox.connect("key-release-event", self._keyReleasedCb)

        self.detector = autoSpriteDetector()

        button = gtk.ToolButton("gtk-zoom-in")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoomInCb)

        button = gtk.ToolButton("gtk-zoom-out")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoomOutCb)

        button = gtk.ToolButton("gtk-zoom-fit")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoomFitCb)

        button = gtk.ToolButton("gtk-zoom-100")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoom100Cb)

        button = gtk.ToolButton("gtk-execute")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._autoDetectSpritesCb)

        button = gtk.ToolButton("gtk-preferences")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._configureDetectorCb)

        button = gtk.ToolButton("gtk-about")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._highlightAllCb)

        button = gtk.ToolButton("gtk-about")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._highlightAllCb)

        self.posLabel = gtk.Label()
        hbox.pack_end(self.posLabel, False, False, 0)

        self.show_all()

        self._setupPopup() #push the funk up
        self.modCtrl = False
        self.modShift = False
class KSEGraphicView(gtk.VBox):
    """
    Contained by : Workzone
    Status view is quite a bad name for this as we will also be able to
    modify things from here in the future. Displays images, animations or
    music tracks. Contains a Photoshop instance in the case of the graphic view.
    @cvar current : tuple of xmlNode + PILImage for this atlas
    """
    
    ACTION_MOVE = 0
    ACTION_RESIZE = 1 
    
    def __init__(self, instance, panel):
        gtk.VBox.__init__(self)
        self.factory = DrawableFactory()
        self.workzone = instance
        self.logger = logging.getLogger("KRFEditor")
        self.photoshop = Photoshop(self)
        self.panel = panel
        
        vbox = gtk.VBox()
        hbox = gtk.HBox()
        hbox.pack_start(gtk.Label("atlas"), False, False, 0)
        self.pack_start(hbox, False, False, 0)
        self.pack_start(self.photoshop, True, True, 0)
        self.atlases = {}
        self.selectedSprites = []
        self.currentAtlas = None
        self.photoshop.connect("button-press-event", self._buttonPressedCb)
        self.photoshop.connect("button-release-event", self._buttonReleaseCb)
        self.photoshop.drawingArea.props.has_tooltip = True
        self.photoshop.drawingArea.connect("query-tooltip", self._queryTooltipCb)

        self.photoshop.eventBox.connect("key-press-event", self._keyPressedCb)
        self.photoshop.eventBox.connect("key-release-event", self._keyReleasedCb)
        
        self.photoshop.drawingArea.drag_dest_set(0, [], 0)
        self.photoshop.drawingArea.connect("motion-notify-event", self._cursorMovedCb);
        
        self.photoshop.drawingArea.set_events(gtk.gdk.EXPOSURE_MASK | gtk.gdk.LEAVE_NOTIFY_MASK |
                                              gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.POINTER_MOTION_MASK |
                                              gtk.gdk.BUTTON_RELEASE_MASK |
                                              gtk.gdk.POINTER_MOTION_HINT_MASK)

        self.detector = autoSpriteDetector()

        button = gtk.ToolButton("gtk-zoom-in")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoomInCb)

        button = gtk.ToolButton("gtk-zoom-out")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoomOutCb)

        button = gtk.ToolButton("gtk-zoom-fit")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoomFitCb)

        button = gtk.ToolButton("gtk-zoom-100")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoom100Cb)

        button = gtk.ToolButton("gtk-execute")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._autoDetectSpritesCb)

        button = gtk.ToolButton("gtk-preferences")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._configureDetectorCb)

        button = gtk.ToolButton("gtk-about")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._highlightAllCb)

        self.posLabel = gtk.Label()
        hbox.pack_end(self.posLabel, False, False, 0)

        self.show_all()

        self._setupPopup() #push the funk up
        self.modCtrl = False
        self.modShift = False
        self.selected = None
        
    def loadAtlasFromXml(self, node, filePath):
        try:
            atlas = self.atlases[filePath]
            drawable = atlas.drawable
        except KeyError:
            atlas = Atlas(self.factory)
            atlas.path = filePath
            atlas.connect("sprite-added", self.workzone._spriteAddedCb)
            atlas.connect("sprite-removed", self.workzone._spriteRemovedCb)
            atlas.loadSprites(node)
            atlas.connect("sprite-removed", self._atlasChangedCb)
            atlas.connect("sprite-added", self._atlasChangedCb)
            observer = AtlasLogObserver(self.workzone.app.action_log)
            observer.startObserving(atlas)
            self.atlases[filePath] = atlas
            try:
                drawable = self.factory.makeDrawableFromPath(filePath)
                self.logger.info("User opened an atlas : %s", filePath)
            except:
                drawable = self.factory.makeNewDrawable(node.attrib["width"], node.attrib["height"])

            if not node.attrib["width"]: #Imported atlas
                node.attrib["width"] = str(drawable.image.size[0])
                node.attrib["height"] = str(drawable.image.size[1])

            atlas.setDrawable(drawable)
            atlas.setXmlNode(node)

        self.currentAtlas = atlas
        try:
            atlas.selection.disconnect_by_function(self.photoshop._atlasSelectionChangedCb)
        except Exception:
            pass
        atlas.selection.connect("selected-changed", self.photoshop._atlasSelectionChangedCb)
        self.photoshop.displayImage(drawable.image)
        self._getOffsetsFromXml(node)

    def mergeResource(self, width, height, path):
        atlas = self.currentAtlas
        if not atlas:
            #TODO : may'be have a default atlas ?
            return
        drawable = self.factory.makeDrawableFromPath(path, width, height)
        coords = atlas.addSprite(drawable.image, path)
        #if no coords, image was not merged, no need to display it again
        if coords:
            self.photoshop.displayImage(atlas.drawable.image)
            coords["xmlNode"] = atlas.xmlNode
            coords["path"] = path
        return coords

    def export(self):
        """
        :param path : path of the image to export
        """
        for atlas in self.atlases:
            self.atlases[atlas].drawable.save(self.atlases[atlas].path)

    #INTERNAL
    
    def _getOffsetsFromXml(self, node):
        try:
            xoff = node.attrib["xoffset"]
            yoff = node.attrib["yoffset"]
            maxoff = node.attrib["maxoffset"]
        except KeyError:
            node.attrib["xoffset"] = str(0)
            node.attrib["yoffset"] = str(0)
            node.attrib["maxoffset"] = str(0)
            xoff = 0
            yoff = 0
            maxoff = 0
        self.currentAtlas.xoffset = int(xoff)
        self.currentAtlas.yoffset = int(yoff)
        self.currentAtlas.maxOffset = int(maxoff)

    def _setupPopup(self):
        self.popup = gtk.Menu()
        menuItem = gtk.MenuItem("Do something")
        menuItem.connect("activate", self._doSomethingCb)
        self.popup.append(menuItem)

    def _tryAnim(self, x, y, event):
        anim = self.currentAtlas.getAnimForXY(x, y, True)
        if event.button == 3:
            self.build_context_menu(event, anim)
            return
        self.currentAtlas.selection.reset()
        self.currentAtlas.selection.addObject(anim)

    def build_context_menu(self, event, sprite):
        entries = [("Edit", self._doSomethingCb, sprite != None),
                   ("Create animation", self._createAnimationCb, len(self.currentAtlas.selection.selected) > 1),
                   ("Add sprite", self._addSpriteCb, True)]

        menu = gtk.Menu()
        for stock_id, callback, sensitivity in entries:
            item = gtk.MenuItem(stock_id)
            if callback:
                item.connect("activate", callback, sprite, event.get_coords())
                item.set_sensitive(sensitivity)
                item.show()
                menu.append(item)
        menu.popup(None,None,None,event.button,event.time) 

    def _reAlignSprites(self):
        xref = self.currentAtlas.selection.selected[0].texturex
        yref = self.currentAtlas.selection.selected[0].texturey
        wref = self.currentAtlas.selection.selected[0].texturew
        href = self.currentAtlas.selection.selected[0].textureh
        for i, sprite in enumerate(self.currentAtlas.selection.selected[1:]):
            sprite.texturey = yref
            sprite.texturex = xref + (i * wref) 

    def _maybeMoveSprite(self, key):
        if len(self.photoshop.currentSelection) != 1:
            return True
        sprite = self.photoshop.currentSelection[0]
        if key == "d":
            sprite.texturex += 1
        elif key == "q":
            sprite.texturex -= 1
        elif key == "z":
            sprite.texturey -= 1
        elif key == "s":
            sprite.texturey += 1
        else:
            return False
        sprite.updateXmlNode()
        self.currentAtlas.selection.reset()
        self.currentAtlas.selection.addObject(sprite)
        self.photoshop.highlightAll(self.currentAtlas)
        return True

    def _atlasChangedCb(self, atlas, sprite):
        self.photoshop.displayImage(atlas.drawable.image)

    def _doSomethingCb(self, menuItem, sprite, event):
        self.editSprite(sprite)
        
    def editSprite(self, sprite):
        spriteEditor = SpriteEditor(sprite)

    def _queryTooltipCb(self, widget, x, y, mode, tooltip):
        if not self.currentAtlas:
            return False
        x = x / self.photoshop.zoomRatio
        y = y / self.photoshop.zoomRatio
        sprite = self.currentAtlas.getSpriteForXY(x, y)
        if not sprite:
            return False
        if (sprite.path == "NoResource"):
            tooltip.set_text("No resources are associated with this sprite")
            return
        pixbuf = gtk.gdk.pixbuf_new_from_file(sprite.path)
        vbox = gtk.VBox(spacing = 4)
        im = gtk.Image()
        im.set_from_pixbuf(pixbuf)
        vbox.pack_start(im, True, True, 0)
        frame = gtk.Frame()
        label = gtk.Label()
        frame.add(label)
        frame.set_shadow_type(gtk.SHADOW_OUT)
        if not sprite.name:
            label.set_markup("<b><big>Unnamed sprite.</big></b>")
        else:
            label.set_markup("<b><big>" + sprite.name + "</big></b>")
        vbox.pack_start(frame, False, False, 0)
        vbox.show_all()
        tooltip.set_custom(vbox)
        return True
    
    def _buttonReleaseCb(self, widget, evet):
        # Release selected sprite
        if self.selected is not None:
            self.selected.updateXmlNode()
            self.selected = None
            
    # The position taken must be in projected coordinate
    def _updateMousePointer(self, position):
        # We don't want to update mouse pointer is something is selected
        if self.selected is None and self.currentAtlas is not None:
            foundCorner = False
            spriteOver = self.currentAtlas.getSpriteForXY(position[0], position[1])
            
            if spriteOver is not None:
                position[0] -= spriteOver.texturex
                position[1] -= spriteOver.texturey
                
                if spriteOver.isInCorner(position):
                    foundCorner = True
                    self.workzone.app.window.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.HAND1))
                
            if not foundCorner:
                self.workzone.app.window.get_window().set_cursor(gtk.gdk.Cursor(gtk.gdk.ARROW))
    
    def _cursorMovedCb(self, widget, event):
        position = self.photoshop.projectCoords(event.get_coords())
        
        if self.selected is not None:
            
            if self.selectedAction == KSEGraphicView.ACTION_MOVE:
                position[0] -= self.selectedDecal[0]
                position[1] -= self.selectedDecal[1]
                
                self.selected.setPosition(position)
                
                self.refreshDisplay()
                
            elif self.selectedAction == KSEGraphicView.ACTION_RESIZE:
                newDimension = [position[0] - self.selected.texturex, position[1] - self.selected.texturey]
                self.selected.resize(newDimension)
                self.refreshDisplay()
                
            self.panel.updateSelectedSprite(self.selected, self)
        else:
            self._updateMousePointer(position)
            
    def refreshDisplay(self):
        self.currentAtlas.selection.reset()
        self.currentAtlas.selection.addObject(self.selected)
        self.photoshop.highlightAll(self.currentAtlas)

    def _buttonPressedCb(self, widget, event):
        self.selected = None
        
        self.panel.updateSelectedSprite(None, self)
        # Could happen if no atlas is loaded
        if self.currentAtlas is None:
            return
        
        self.photoshop.drawingArea.grab_focus()
        xoff = self.photoshop.vruler.get_allocation().width
        yoff = self.photoshop.hruler.get_allocation().height
        position = self.photoshop.projectCoords(event.get_coords())
        x = position[0]
        y = position[1]
        sprite = self.currentAtlas.getSpriteForXY(x, y, True)

        #3 == Right click
        if sprite is not None:
            if event.button == 1:
                if self.modShift:
                    self.currentAtlas.selection.addObject(sprite)
                else:
                    if event.type == gtk.gdk.BUTTON_PRESS:
                        self.selected = sprite
                        self.selectedDecal = [x - sprite.texturex, y - sprite.texturey]
                        if sprite.isInCorner(self.selectedDecal):
                            self.selectedAction = KSEGraphicView.ACTION_RESIZE
                        else:
                            self.selectedAction = KSEGraphicView.ACTION_MOVE
                        self.panel.updateSelectedSprite(sprite, self)
                        self.currentAtlas.selection.reset()
                        self.currentAtlas.selection.addObject(sprite)
                    elif event.type == gtk.gdk._2BUTTON_PRESS or event.type == gtk.gdk._3BUTTON_PRESS:
                        self.editSprite(sprite)
            elif event.button == 3:
                self.build_context_menu(event, sprite)
                return
            else:
                # Nothing to do for now
                pass
        else:
            self._tryAnim(x, y, event)
            return

    def _zoomInCb(self, widget):
        self.photoshop.zoomIn()

    def _zoomOutCb(self, widget):
        self.photoshop.zoomOut()

    def _zoomFitCb(self, widget):
        pass

    def _zoom100Cb(self, widget):
        self.photoshop.zoom100()

    def _configureDetectorCb(self, widget):
        AutoDetectorSettings(self.workzone.app.window, self.detector)

    def _autoDetectSpritesCb(self, widget):
        if self.currentAtlas == None:
            return
        self.detector.startDetection(self.currentAtlas.path)
        coordinates = self.detector.getCoordinates()
        self.currentAtlas.sprites = []
        self.currentAtlas.animations = []
        for elem in coordinates:
            self.currentAtlas.referenceSprite(elem)
        if self.detector.gravity != None:
            self.currentAtlas.extendSprites(self.detector.matchSize, self.detector.gravity)
        self.currentAtlas.sortSprites()
        self.photoshop.highlightAll(self.currentAtlas)

    def _highlightAllCb(self, widget):
        self.photoshop.highlightAll(self.currentAtlas)

    def _createAnimationCb(self, widget, sprite, event):
        self.photoshop.allSelected = False
        self._reAlignSprites()
        x = self.currentAtlas.selection.selected[0].texturex
        y = self.currentAtlas.selection.selected[0].texturey
        tilelen = 0
        animw = self.currentAtlas.selection.selected[0].texturew
        animh = self.currentAtlas.selection.selected[0].textureh
        for sprite in self.currentAtlas.selection.selected:
            try:
                self.currentAtlas.unreferenceSprite(sprite)
                tilelen += 1
            except ValueError:
                continue
        anim = self.currentAtlas.referenceAnimation([animw, animh, x, y], tilelen)
        self.currentAtlas.selection.reset()
        self.currentAtlas.selection.addObject(anim)
        self.currentAtlas.highlightAll()

    def _keyPressedCb(self, widget, event):
        self.photoshop.drawingArea.grab_focus()
        key = gtk.gdk.keyval_name(event.keyval)
        if self._maybeMoveSprite(key):
            return True
        elif key == "Right" or key == "Down":
            self.currentAtlas.selection.reset()
            self.currentAtlas.selection.addObject(self.currentAtlas.getNextSprite())
            return True
        elif key == "Left" or key == "Up":
            self.currentAtlas.selection.reset()
            self.currentAtlas.selection.addObject(self.currentAtlas.getPreviousSprite())
            return True
        elif key == "Delete":
            try:
                self.currentAtlas.unreferenceSprite(self.currentAtlas.sprites[self.currentAtlas.currentSprite])
                self.photoshop.highlightAll(self.currentAtlas)
            except IndexError:
                self.currentAtlas.selection.reset()
                return True
            self.currentAtlas.selection.reset()
            self.currentAtlas.selection.addObject(self.currentAtlas.getCurrentSprite())
            return True
        elif key == "Shift_L":
            self.modShift = True
            return True
        elif key == "space":
            self.modCtrl = True
            return True
        return False

    def _keyReleasedCb(self, widget, event):
        key = gtk.gdk.keyval_name(event.keyval)
        if key == "Shift_L":
            self.modShift = False
            return True
        elif key == "space":
            self.modCtrl = False
            return True
        return False

    def _addSpriteCb(self, widget, sprite, coords):
        x = coords[0]
        y = coords[1]
        #Coords from the panel
        w = self.workzone.app.activityView.graphics.graphics.width
        h = self.workzone.app.activityView.graphics.graphics.height
        sprite = self.currentAtlas.referenceSprite([w, h, x, y])
        self.currentAtlas.selection.reset()
        self.currentAtlas.selection.addObject(sprite)
class KSEStatusView(gtk.VBox):
    """
    Contained by : Workzone
    Status view is quite a bad name for this as we will also be able to
    modify things from here in the future. Displays images, animations or
    music tracks. Contains a Photoshop instance in the case of the graphic view.
    @cvar current : tuple of xmlNode + PILImage for this atlas
    """
    def __init__(self, instance):
        gtk.VBox.__init__(self)
        self.factory = DrawableFactory()
        self.workzone = instance
        self.logger = logging.getLogger("KRFEditor")
        self.photoshop = Photoshop(self)
        vbox = gtk.VBox()
        hbox = gtk.HBox()
        hbox.pack_start(gtk.Label("atlas"), False, False, 0)
        self.pack_start(hbox, False, False, 0)
        self.pack_start(self.photoshop, True, True, 0)
        self.atlases = {}
        self.selectedSprites = []
        self.currentAtlas = None
        self.photoshop.connect("button-press-event", self._buttonReleasedCb)
        self.photoshop.drawingArea.props.has_tooltip = True
        self.photoshop.drawingArea.connect("query-tooltip", self._queryTooltipCb)

        self.photoshop.eventBox.connect("key-press-event", self._keyPressedCb)
        self.photoshop.eventBox.connect("key-release-event", self._keyReleasedCb)

        self.detector = autoSpriteDetector()

        button = gtk.ToolButton("gtk-zoom-in")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoomInCb)

        button = gtk.ToolButton("gtk-zoom-out")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoomOutCb)

        button = gtk.ToolButton("gtk-zoom-fit")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoomFitCb)

        button = gtk.ToolButton("gtk-zoom-100")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._zoom100Cb)

        button = gtk.ToolButton("gtk-execute")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._autoDetectSpritesCb)

        button = gtk.ToolButton("gtk-preferences")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._configureDetectorCb)

        button = gtk.ToolButton("gtk-about")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._highlightAllCb)

        button = gtk.ToolButton("gtk-about")
        hbox.pack_end(button, False, False, 0)
        button.connect("clicked", self._highlightAllCb)

        self.posLabel = gtk.Label()
        hbox.pack_end(self.posLabel, False, False, 0)

        self.show_all()

        self._setupPopup() #push the funk up
        self.modCtrl = False
        self.modShift = False

    def loadAtlasFromXml(self, node, filePath):
        try:
            atlas = self.atlases[filePath]
            drawable = atlas.drawable
        except KeyError:
            atlas = Atlas(self.factory)
            atlas.path = filePath
            atlas.connect("sprite-added", self.workzone._spriteAddedCb)
            atlas.connect("sprite-removed", self.workzone._spriteRemovedCb)
            atlas.loadSprites(node)
            atlas.connect("sprite-removed", self._atlasChangedCb)
            atlas.connect("sprite-added", self._atlasChangedCb)
            observer = AtlasLogObserver(self.workzone.app.action_log)
            observer.startObserving(atlas)
            self.atlases[filePath] = atlas
            try:
                drawable = self.factory.makeDrawableFromPath(filePath)
                self.logger.info("User opened an atlas : %s", filePath)
            except:
                drawable = self.factory.makeNewDrawable(node.attrib["width"], node.attrib["height"])

            atlas.setDrawable(drawable)
            atlas.setXmlNode(node)

        self.currentAtlas = atlas
        try:
            atlas.selection.disconnect_by_function(self.photoshop._atlasSelectionChangedCb)
        except Exception:
            pass
        atlas.selection.connect("selected-changed", self.photoshop._atlasSelectionChangedCb)
        self.photoshop.displayImage(drawable.image)
        self._getOffsetsFromXml(node)

    def mergeResource(self, width, height, path):
        atlas = self.currentAtlas
        if not atlas:
            #TODO : may'be have a default atlas ?
            return
        drawable = self.factory.makeDrawableFromPath(path, width, height)
        coords = atlas.addSprite(drawable.image, path)
        #if no coords, image was not merged, no need to display it again
        if coords:
            self.photoshop.displayImage(atlas.drawable.image)
            coords["xmlNode"] = atlas.xmlNode
            coords["path"] = path
        return coords

    def export(self):
        """
        :param path : path of the image to export
        """
        for atlas in self.atlases:
            self.atlases[atlas].drawable.save(self.atlases[atlas].path)

    #INTERNAL

    def _getOffsetsFromXml(self, node):
        try:
            xoff = node.attrib["xoffset"]
            yoff = node.attrib["yoffset"]
            maxoff = node.attrib["maxoffset"]
        except KeyError:
            node.attrib["xoffset"] = str(0)
            node.attrib["yoffset"] = str(0)
            node.attrib["maxoffset"] = str(0)
            xoff = 0
            yoff = 0
            maxoff = 0
        self.currentAtlas.xoffset = int(xoff)
        self.currentAtlas.yoffset = int(yoff)
        self.currentAtlas.maxOffset = int(maxoff)

    def _setupPopup(self):
        self.popup = gtk.Menu()
        menuItem = gtk.MenuItem("Do something")
        menuItem.connect("activate", self._doSomethingCb)
        self.popup.append(menuItem)

    def _tryAnim(self, x, y, event):
        anim = self.currentAtlas.getAnimForXY(x, y, True)
        if event.button == 3:
            self.build_context_menu(event, anim)
            return
        self.currentAtlas.selection.reset()
        self.currentAtlas.selection.addObject(anim)

    def build_context_menu(self, event, sprite):
        entries = [("Edit", self._doSomethingCb, True),
                   ("Create animation", self._createAnimationCb, len(self.currentAtlas.selection.selected) > 1)]

        menu = gtk.Menu()
        for stock_id, callback, sensitivity in entries:
            item = gtk.MenuItem(stock_id)
            if callback:
                item.connect("activate", callback, sprite)
                item.set_sensitive(sensitivity)
                item.show()
                menu.append(item)
        menu.popup(None,None,None,event.button,event.time) 

    def _reAlignSprites(self):
        xref = self.currentAtlas.selection.selected[0].texturex
        yref = self.currentAtlas.selection.selected[0].texturey
        wref = self.currentAtlas.selection.selected[0].texturew
        href = self.currentAtlas.selection.selected[0].textureh
        for i, sprite in enumerate(self.currentAtlas.selection.selected[1:]):
            sprite.texturey = yref
            sprite.texturex = xref + (i * wref) 

    def _maybeMoveSprite(self, key):
        if len(self.photoshop.currentSelection) != 1:
            return False
        sprite = self.photoshop.currentSelection[0]
        if key == "Right":
            sprite.texturex += 1
        elif key == "Left":
            sprite.texturex -= 1
        elif key == "Up":
            sprite.texturey -= 1
        elif key == "Down":
            sprite.texturey += 1
        else:
            return False
        sprite.updateXmlNode()
        self.currentAtlas.selection.reset()
        self.currentAtlas.selection.addObject(sprite)

    def _atlasChangedCb(self, atlas, sprite):
        self.photoshop.displayImage(atlas.drawable.image)

    def _doSomethingCb(self, menuItem, sprite):
        spriteEditor = SpriteEditor(sprite)

    def _queryTooltipCb(self, widget, x, y, mode, tooltip):
        if not self.currentAtlas:
            return False
        x = x / self.photoshop.zoomRatio
        y = y / self.photoshop.zoomRatio
        sprite = self.currentAtlas.getSpriteForXY(x, y)
        if not sprite:
            return False
        if (sprite.path == "NoResource"):
            tooltip.set_text("No resources are associated with this sprite")
            return
        pixbuf = gtk.gdk.pixbuf_new_from_file(sprite.path)
        vbox = gtk.VBox(spacing = 4)
        im = gtk.Image()
        im.set_from_pixbuf(pixbuf)
        vbox.pack_start(im, True, True, 0)
        frame = gtk.Frame()
        label = gtk.Label()
        frame.add(label)
        frame.set_shadow_type(gtk.SHADOW_OUT)
        if not sprite.name:
            label.set_markup("<b><big>Unnamed sprite.</big></b>")
        else:
            label.set_markup("<b><big>" + sprite.name + "</big></b>")
        vbox.pack_start(frame, False, False, 0)
        vbox.show_all()
        tooltip.set_custom(vbox)
        return True

    def _buttonReleasedCb(self, widget, event):
        xoff = self.photoshop.vruler.get_allocation().width
        yoff = self.photoshop.hruler.get_allocation().height
        x = event.get_coords()[0] / self.photoshop.zoomRatio - xoff
        y = event.get_coords()[1] / self.photoshop.zoomRatio - yoff
        sprite = self.currentAtlas.getSpriteForXY(x, y, True)
        if event.button == 3 and sprite != None:
            self.build_context_menu(event, sprite)
            return
        if self.modShift and sprite != None:
            self.currentAtlas.selection.addObject(sprite)
        else:
            self.currentAtlas.selection.reset()
            self.currentAtlas.selection.addObject(sprite)
        if sprite == None:
            self._tryAnim(x, y, event)
            return

    def _zoomInCb(self, widget):
        self.photoshop.zoomIn()

    def _zoomOutCb(self, widget):
        self.photoshop.zoomOut()

    def _zoomFitCb(self, widget):
        pass

    def _zoom100Cb(self, widget):
        self.photoshop.zoom100()

    def _configureDetectorCb(self, widget):
        AutoDetectorSettings(self.workzone.app.window, self.detector)

    def _autoDetectSpritesCb(self, widget):
        if self.currentAtlas == None:
            return
        self.detector.startDetection(self.currentAtlas.path)
        coordinates = self.detector.getCoordinates()
        self.currentAtlas.sprites = []
        self.currentAtlas.animations = []
        for elem in coordinates:
            self.currentAtlas.referenceSprite(elem)
        if self.detector.gravity != None:
            self.currentAtlas.extendSprites(self.detector.matchSize, self.detector.gravity)
        self.currentAtlas.sortSprites()
        self.photoshop.highlightAll(self.currentAtlas)

    def _highlightAllCb(self, widget):
        self.photoshop.highlightAll(self.currentAtlas)

    def _createAnimationCb(self, widget, sprite):
        self.photoshop.allSelected = False
        self._reAlignSprites()
        x = self.currentAtlas.selection.selected[0].texturex
        y = self.currentAtlas.selection.selected[0].texturey
        tilelen = 0
        animw = self.currentAtlas.selection.selected[0].texturew
        animh = self.currentAtlas.selection.selected[0].textureh
        for sprite in self.currentAtlas.selection.selected:
            try:
                self.currentAtlas.unreferenceSprite(sprite)
                tilelen += 1
            except ValueError:
                continue
        anim = self.currentAtlas.referenceAnimation([animw, animh, x, y], tilelen)
        self.currentAtlas.selection.reset()
        self.currentAtlas.selection.addObject(anim)

    def _keyPressedCb(self, widget, event):
        key = gtk.gdk.keyval_name(event.keyval)
        if self.modCtrl:
            return (self._maybeMoveSprite(key))
        elif key == "Right" or key == "Down" and not self.modCtrl:
            self.currentAtlas.selection.reset()
            self.currentAtlas.selection.addObject(self.currentAtlas.getNextSprite())
            return True
        elif key == "Left" or key == "Up" and not self.modCtrl:
            self.currentAtlas.selection.reset()
            self.currentAtlas.selection.addObject(self.currentAtlas.getPreviousSprite())
            return True
        elif key == "Delete":
            try:
                self.currentAtlas.sprites.pop(self.currentAtlas.currentSprite)
            except IndexError:
                self.currentAtlas.selection.reset()
                return True
            self.currentAtlas.selection.reset()
            self.currentAtlas.selection.add_object(self.currentAtlas.getCurrentSprite())
            return True
        elif key == "Shift_L":
            print "ACTIVATED MOD SHIFT"
            self.modShift = True
            return True
        elif key == "Control_L":
            self.modCtrl = True
            return True
        return False

    def _keyReleasedCb(self, widget, event):
        key = gtk.gdk.keyval_name(event.keyval)
        if key == "Shift_L":
            self.modShift = False
            return True
        elif key == "Control_L":
            self.modCtrl = False
            return True
        return False