[ocrfeeder/introspection: 4/14] Rename SelectableBoxesArea and move it to its own file



commit 33255e95a14f7ff6bbcda887b95be9ced3706433
Author: Joaquim Rocha <me joaquimrocha com>
Date:   Thu Sep 12 22:01:11 2013 +0200

    Rename SelectableBoxesArea and move it to its own file
    
    Now it is called BoxesArea.
    Also update the import of the old name accordingly.

 src/ocrfeeder/studio/boxesarea.py     |  558 +++++++++++++++++++++++++++++++++
 src/ocrfeeder/studio/customWidgets.py |  544 +--------------------------------
 src/ocrfeeder/studio/widgetModeler.py |    4 +-
 3 files changed, 561 insertions(+), 545 deletions(-)
---
diff --git a/src/ocrfeeder/studio/boxesarea.py b/src/ocrfeeder/studio/boxesarea.py
new file mode 100644
index 0000000..43196f1
--- /dev/null
+++ b/src/ocrfeeder/studio/boxesarea.py
@@ -0,0 +1,558 @@
+# -*- coding: utf-8 -*-
+
+###########################################################################
+#    OCRFeeder - The complete OCR suite
+#    Copyright (C) 2009-2013 Joaquim Rocha <me joaquimrocha com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+###########################################################################
+
+from gi.repository import Gtk, Gdk, GooCanvas, GObject, GdkPixbuf
+
+class BoxesArea(GooCanvas.Canvas):
+
+    MINIMUM_ZOOM_HEIGHT = 50
+    IMAGE_FRAME_THICKNESS = 5
+    IMAGE_FRAME_COLOR = '#717171'
+
+    __gsignals__ = {
+        'selected_box' : (GObject.SIGNAL_RUN_LAST,
+                     GObject.TYPE_NONE,
+                     (GObject.TYPE_PYOBJECT,)),
+        'removed_box' : (GObject.SIGNAL_RUN_LAST,
+                     GObject.TYPE_NONE,
+                     (GObject.TYPE_PYOBJECT,)),
+        'updated_box' : (GObject.SIGNAL_RUN_LAST,
+                     GObject.TYPE_NONE,
+                     (GObject.TYPE_PYOBJECT,)),
+        'deselected_box' : (GObject.SIGNAL_RUN_LAST,
+                            GObject.TYPE_NONE,
+                            (GObject.TYPE_PYOBJECT,)),
+        'dragged_box' : (GObject.SIGNAL_RUN_LAST,
+                     GObject.TYPE_NONE,
+                     (GObject.TYPE_PYOBJECT,)),
+        'changed_zoom' : (GObject.SIGNAL_RUN_LAST,
+                     GObject.TYPE_NONE,
+                     (GObject.TYPE_FLOAT,))
+        }
+
+    def __init__(self, image_path):
+        GooCanvas.Canvas.__init__(self)
+        self.image = GooCanvas.CanvasImage()
+        self.frame = []
+        self.setBackgroundImage(image_path)
+        self.grab_focus(self.image)
+        #style = Gtk.widget_get_default_style()
+        #self.set_property('background-color', style.bg[Gtk.STATE_NORMAL].to_string())
+        self.realize()
+        self.get_root_item().add_child(self.image, 0)
+        self.area_fill_rgba = (94, 156, 235, 150)
+        self.area_stroke_rgba = (94, 156, 235, 250)
+        self.area_selected_stroke_rgba = (255, 255, 0, 255)
+        self.image.connect('button_press_event', self.startSelectionArea)
+        self.image.connect('button_release_event', self.endSelectionArea)
+        self.image.connect('motion_notify_event', self.updateSelectionArea)
+        self.image.connect('key_press_event', self.pressedKeyOnImage)
+        self.connect('scroll-event', self.scrollEventCb)
+        self.selected_areas = []
+        self.currently_created_area = None
+
+    def __rgbaToInteger(self, rgba):
+        r, g, b, a = rgba
+        return (r << 24) | (g << 16) | (b << 8) | a
+
+    def __getRectangleFromPoints(self, start_point, end_point):
+        start_x, start_y = start_point
+        start_x, start_y = self.convert_from_pixels(start_x, start_y)
+        end_x, end_y = end_point
+        width = end_x - start_x
+        height = end_y - start_y
+        if width < 0:
+            width = abs(width)
+            start_x = end_x
+        if height < 0:
+            height = abs(height)
+            start_y = end_y
+        return start_x, start_y, width, height
+
+    def setBackgroundImage(self, image_path):
+        pixbuf = GdkPixbuf.Pixbuf.new_from_file(image_path)
+        self.image.set_property('pixbuf', pixbuf)
+        self.set_bounds(0, 0, self.image.props.width * 2, self.image.props.height * 1.5)
+        #for line in self.frame:
+        #    line.remove()
+        #self.__createFrame()
+        #for line in self.frame:
+        #    self.get_root_item().add_child(line, 0)
+
+    def __createFrame(self):
+        line = GooCanvas.CanvasRect(fill_color = self.IMAGE_FRAME_COLOR, line_width = 0)
+        line.props.x = self.image.props.x + self.image.props.width
+        line.props.y = self.image.props.y
+        line.props.width = self.IMAGE_FRAME_THICKNESS
+        line.props.height = self.image.props.height + self.IMAGE_FRAME_THICKNESS
+        self.frame.append(line)
+
+        line = GooCanvas.CanvasRect(fill_color = self.IMAGE_FRAME_COLOR,
+                                    line_width = 0)
+        line.props.x = self.image.props.x
+        line.props.y = self.image.props.y + self.image.props.height
+        line.props.width = self.image.props.width + 1
+        line.props.height = self.IMAGE_FRAME_THICKNESS
+        self.frame.append(line)
+
+    def setCurrentArea(self, area):
+        self.set_data('current_area', area)
+
+    def setSelectedArea(self, area):
+        self.selected_areas = [area]
+
+    def getSelectedAreas(self):
+        return self.selected_areas
+
+    def selectAllAreas(self):
+        areas = self.getAllAreas()
+        for area in areas:
+            self.selectArea(area)
+
+    def selectArea(self, area):
+        if area not in self.selected_areas:
+            self.selected_areas.append(area)
+        area.set_property('stroke_color_rgba',self.__rgbaToInteger(self.area_selected_stroke_rgba))
+        self.grab_focus(area)
+        area.connect('key_press_event', self.keyPressed)
+        self.emit('selected_box', area)
+
+    def deselectAreas(self):
+        for selected_area in self.selected_areas:
+            if selected_area != None:
+                selected_area.set_property('stroke_color_rgba',
+                                           self.__rgbaToInteger(self.area_stroke_rgba))
+        # The deselectArea is not used in here for efficiency purposes
+        while self.selected_areas:
+            selected_area = self.selected_areas.pop(0)
+            self.emit('deselected_box', selected_area)
+        self.grab_focus(self.image)
+
+    def deselectArea(self, area):
+        if not area in self.selected_areas:
+            return False
+        if area != None:
+            area.set_property('stroke_color_rgba',
+                              self.__rgbaToInteger(self.area_stroke_rgba))
+        self.selected_areas.remove(area)
+        self.emit('deselected_box', area)
+        return True
+
+    def selectNextArea(self):
+        self.__selectSurroundingArea(-1)
+
+    def selectPreviousArea(self):
+        self.__selectSurroundingArea(1)
+
+    def deleteSelectedAreas(self):
+        areas_to_remove = []
+        while self.selected_areas:
+            selected_area = self.selected_areas.pop(0)
+            selected_area.remove()
+            areas_to_remove.append(selected_area)
+        self.get_window().set_cursor(None)
+        for area in areas_to_remove:
+            self.emit('removed_box', area)
+
+    def __selectSurroundingArea(self, area_offset):
+        areas = self.getAllAreas()
+        if not areas:
+            return
+        area_index = self.__getCurrentSelectedAreaIndex(areas)
+        area_index += area_offset
+        if abs(area_index) >= len(areas):
+            area_index = 0
+        self.deselectAreas()
+        self.selectArea(areas[area_index])
+
+    def __getCurrentSelectedAreaIndex(self, areas):
+        current_area = areas[0]
+        if self.selected_areas:
+            current_area = self.selected_areas[-1]
+        area_index = areas.index(current_area)
+        return area_index
+
+    def zoom(self, zoom_value, add_zoom = True):
+        new_zoom = zoom_value
+        set_zoom = False
+        if add_zoom:
+            current_zoom = self.get_scale()
+            new_zoom = current_zoom + zoom_value
+            if new_zoom * self.image.props.height >= self.MINIMUM_ZOOM_HEIGHT:
+                set_zoom = True
+        else:
+            if new_zoom * self.image.props.height >= self.MINIMUM_ZOOM_HEIGHT:
+                set_zoom = True
+        if set_zoom:
+            self.set_scale(new_zoom)
+            self.emit('changed_zoom', self.get_scale())
+
+    def getImageSize(self):
+        return self.image.props.height, self.image.props.width
+
+    def startSelectionArea(self, item, target, event):
+        if event.type != Gdk.EventType.BUTTON_PRESS:
+            return False
+        self.deselectAreas()
+        fill_color = self.__rgbaToInteger(self.area_fill_rgba)
+        stroke_color = self.__rgbaToInteger(self.area_stroke_rgba)
+        self.currently_created_area = Box(fill_color_rgba = fill_color, stroke_color_rgba = stroke_color)
+        x, y = event.x * self.get_scale(), event.y * self.get_scale()
+        self.currently_created_area.props.x = x
+        self.currently_created_area.props.y = y
+        self.currently_created_area.start_point = x, y
+        self.currently_created_area.connect('button_release_event', self.releasedWithinArea)
+        self.currently_created_area.connect('motion_notify_event', self.dragArea)
+        self.get_root_item().add_child(self.currently_created_area, -1)
+        return False
+
+    def updateSelectionArea(self, item, target, event):
+        if self.currently_created_area != None:
+            end_x = event.x
+            end_y = event.y
+            if event.x > self.image.props.width:
+                end_x = self.image.props.width
+            elif event.x < 0:
+                end_x = 0
+            if event.y > self.image.props.height:
+                end_y = self.image.props.height
+            elif event.y < 0:
+                end_y = 0
+            end_point = (end_x, end_y)
+            start_point = self.currently_created_area.start_point
+            x, y, width, height = self.__getRectangleFromPoints(start_point, end_point)
+            self.currently_created_area.props.x = x
+            self.currently_created_area.props.y = y
+            self.currently_created_area.props.width = width
+            self.currently_created_area.props.height = height
+            return True
+
+    def endSelectionArea(self, item, target, event):
+        self.deselectAreas()
+        if self.currently_created_area != None:
+            if self.currently_created_area.props.width < 5 or self.currently_created_area.props.height < 5:
+                self.currently_created_area.remove()
+                self.currently_created_area = None
+                return False
+            self.handleOverlapedAreas(self.getOverlapedAreas(self.currently_created_area))
+            self.deselectAreas()
+            self.selectArea(self.currently_created_area)
+        self.currently_created_area = None
+
+    def getOverlapedAreas(self, area):
+        offset = 2
+        start_point = (area.props.x + 5, area.props.y + offset)
+        end_point = (area.props.x + area.props.width - offset, area.props.y + area.props.height - offset)
+        bounds = GooCanvas.CanvasBounds()
+        bounds.x1, bounds.y1, bounds.x2, bounds.y2 = start_point + end_point
+        overlaped_items = self.get_items_in_area(bounds, True, True, True)
+        if area in overlaped_items:
+            overlaped_items.remove(area)
+        return overlaped_items
+
+    def handleOverlapedAreas(self, overlaped_areas):
+        for area in overlaped_areas:
+            if isinstance(area, Box) and \
+               area != self.currently_created_area and \
+               not area in self.selected_areas:
+                area.remove()
+                self.emit('removed_box', area)
+
+    def keyPressed(self, item, rect, event):
+        key_name = Gdk.keyval_name(event.keyval).lower()
+        if key_name in ['left', 'up', 'right', 'down']:
+            fast_mask = Gdk.ModifierType.SHIFT_MASK
+            step = 2
+            if event.state == fast_mask:
+                step = 10
+            if key_name == 'down':
+                item.props.y += step
+            elif key_name == 'up':
+                item.props.y -= step
+            elif key_name == 'right':
+                item.props.x += step
+            elif key_name == 'left':
+                item.props.x -= step
+            self.handleOverlapedAreas(self.getOverlapedAreas(item))
+            self.emit('updated_box', item)
+            return True
+
+    def pressedKeyOnImage(self, item, rect, event):
+        key_name = Gdk.keyval_name(event.keyval).lower()
+        if key_name in ['up', 'down'] and event.state == Gdk.ModifierType.CONTROL_MASK:
+            if key_name == 'up':
+                self.zoom(0.2)
+                return True
+            if key_name == 'down':
+                self.zoom(-0.2)
+                return True
+
+    def releasedWithinArea(self, item, target, event):
+        self.handleOverlapedAreas(self.getOverlapedAreas(item))
+        self.emit('updated_box', item)
+
+    def dragArea(self, item, target, event):
+        self.emit('dragged_box', item)
+
+    def scrollEventCb(self, widget, event):
+        # Note: This catches all modifier combinations that use Ctrl. Add
+        #       further combinations _before_ for them to take precedence!
+        if event.state & Gdk.ModifierType.CONTROL_MASK:
+            if event.direction == Gdk.ScrollDirection.UP or \
+               event.direction == Gdk.ScrollDirection.RIGHT:
+                self.zoom(0.05)
+                return True # we have handled the event - don't propagate to parent
+            elif event.direction == Gdk.ScrollDirection.DOWN or \
+                 event.direction == Gdk.ScrollDirection.LEFT:
+                self.zoom(-0.05)
+                return True # we have handled the event - don't propagate to parent
+        elif event.state & Gdk.ModifierType.SHIFT_MASK:
+            if event.direction == Gdk.ScrollDirection.UP:
+                event.direction = Gdk.ScrollDirection.LEFT
+                return False # we have not handled the (new) event - propagate to parent
+            elif event.direction == Gdk.ScrollDirection.DOWN:
+                event.direction = Gdk.ScrollDirection.RIGHT
+                return False # we have not handled the (new) event - propagate to parent
+
+    def setAreaFillRgba(self, rgba):
+        self.area_fill_rgba = rgba
+
+    def setAreaStrokeRgba(self, rgba):
+        self.area_stroke_rgba = rgba
+
+    def addArea(self, dimensions):
+        x, y, width, height = dimensions
+        fill_color = self.__rgbaToInteger(self.area_fill_rgba)
+        stroke_color = self.__rgbaToInteger(self.area_stroke_rgba)
+        new_area = Box(fill_color_rgba = fill_color, stroke_color_rgba = stroke_color)
+        new_area.props.x = x
+        new_area.props.y = y
+        new_area.props.width = width
+        new_area.props.height = height
+        new_area.connect('button_release_event', self.releasedWithinArea)
+        new_area.connect('motion_notify_event', self.dragArea)
+        self.handleOverlapedAreas(self.getOverlapedAreas(new_area))
+        self.get_root_item().add_child(new_area, -1)
+        return new_area
+
+    def clearAreas(self):
+        areas = self.getAllAreas()
+        for area in areas:
+            area.remove()
+
+    def getAllAreas(self):
+        areas = [area for area in self.get_items_in_area(self.bounds, True, True, True) if isinstance(area, 
Box) and area not in self.frame]
+        return areas
+
+class Box(GooCanvas.CanvasRect):
+
+    MOUSE_STATE_NORMAL = 0
+    MOUSE_STATE_TOP_DRAG = 1 << 0
+    MOUSE_STATE_BOTTOM_DRAG = 1 << 1
+    MOUSE_STATE_LEFT_DRAG = 1 << 2
+    MOUSE_STATE_RIGHT_DRAG = 1 << 3
+
+    CURSOR_CHANGE_MAX_DISTANCE = 5
+    __bottom_side_cursor = Gdk.Cursor(Gdk.CursorType.BOTTOM_SIDE)
+    __top_side_cursor = Gdk.Cursor(Gdk.CursorType.TOP_SIDE)
+    __left_side_cursor = Gdk.Cursor(Gdk.CursorType.LEFT_SIDE)
+    __right_side_cursor = Gdk.Cursor(Gdk.CursorType.RIGHT_SIDE)
+    __top_left_cursor = Gdk.Cursor(Gdk.CursorType.TOP_LEFT_CORNER)
+    __top_right_cursor = Gdk.Cursor(Gdk.CursorType.TOP_RIGHT_CORNER)
+    __bottom_left_cursor = Gdk.Cursor(Gdk.CursorType.BOTTOM_LEFT_CORNER)
+    __bottom_right_cursor = Gdk.Cursor(Gdk.CursorType.BOTTOM_RIGHT_CORNER)
+    __drag_cursor = Gdk.Cursor(Gdk.CursorType.FLEUR)
+
+    def __init__(self, *args, **kwargs):
+        super(Box, self).__init__(*args, **kwargs)
+        self._state = self.MOUSE_STATE_NORMAL
+        self.connect('motion-notify-event', self.__motionNotifyEventCb)
+        self.connect('button-release-event', self.__buttonReleaseEventCb)
+        self.connect('button-press-event', self.__buttonPressEventCb)
+        # Reset the cursor
+        self.connect('leave-notify-event', self.__leaveNotifyEventCb)
+        # To help on the creation of the box
+        self.start_point = None
+        self._distance = None
+
+    def __leaveNotifyEventCb(self, item, target, event):
+        if event.state & Gdk.ModifierType.BUTTON1_MASK:
+            return True
+        self.__setNormalState()
+
+    def __buttonPressEventCb(self, item, target, event):
+        deselected = False
+        if event.state & Gdk.ModifierType.SHIFT_MASK == 0:
+            self.get_canvas().deselectAreas()
+        else:
+            deselected = self.get_canvas().deselectArea(self)
+        if deselected:
+            return True
+        self.get_canvas().selectArea(self)
+        if self._state == self.MOUSE_STATE_NORMAL:
+            self.get_canvas().get_window().set_cursor(self.__drag_cursor)
+            self._distance = event.x - self.props.x, event.y - self.props.y
+        return True
+
+    def __buttonReleaseEventCb(self, item, target, event):
+        self._distance = None
+        self.get_canvas().get_window().set_cursor(None)
+
+    def __motionNotifyEventCb(self, item, target, event):
+        if self._distance:
+            distance_x, distance_y = self._distance
+            new_x, new_y = event.x - distance_x, event.y - distance_y
+        else:
+            new_x, new_y = self.props.x, self.props.y
+        if event.state & Gdk.ModifierType.BUTTON1_MASK:
+            old_y = int(self.props.y)
+            old_x = int(self.props.x)
+            if self._state & self.MOUSE_STATE_TOP_DRAG:
+                new_x = -1
+                new_y = self.props.y = max(0, int(event.y))
+                new_height = self.props.height + old_y - new_y
+                if new_height < 5:
+                    self.props.y = old_y + self.props.height - 5
+                    self._state &= ~self.MOUSE_STATE_TOP_DRAG
+                    self._state |= self.MOUSE_STATE_BOTTOM_DRAG
+                    self.__updateMouseCursor()
+                else:
+                    self.props.height = new_height
+            if self._state & self.MOUSE_STATE_BOTTOM_DRAG:
+                new_x = -1
+                new_y = -1
+                new_height = min(self.get_canvas().image.props.height, int(event.y)) \
+                             - old_y
+                if new_height < 5:
+                    self.props.height = 5
+                    self._state &= ~self.MOUSE_STATE_BOTTOM_DRAG
+                    self._state |= self.MOUSE_STATE_TOP_DRAG
+                    self.__updateMouseCursor()
+                else:
+                    self.props.height = new_height
+            if self._state & self.MOUSE_STATE_LEFT_DRAG:
+                new_x = max(0, int(event.x))
+                new_y = -1
+                self.props.x = new_x
+                new_width = self.props.width + old_x - new_x
+                if new_width < 5:
+                    self.props.x = old_x + self.props.width - 5
+                    self._state &= ~self.MOUSE_STATE_LEFT_DRAG
+                    self._state |= self.MOUSE_STATE_RIGHT_DRAG
+                    self.__updateMouseCursor()
+                else:
+                    self.props.width = new_width
+            if self._state & self.MOUSE_STATE_RIGHT_DRAG:
+                new_x = -1
+                new_y = -1
+                new_width = min(self.get_canvas().image.props.width, int(event.x)) \
+                            - old_x
+                if new_width < 5:
+                    self.props.width = 5
+                    self._state &= ~self.MOUSE_STATE_RIGHT_DRAG
+                    self._state |= self.MOUSE_STATE_LEFT_DRAG
+                    self.__updateMouseCursor()
+                else:
+                    self.props.width = new_width
+            if self._state == self.MOUSE_STATE_NORMAL:
+                self.props.x = new_x
+                self.props.y = new_y
+                self.__sanitizeBounds(new_x, new_y)
+            return False
+
+        self.__setMouseStateFromEvent(event)
+        return True
+
+    def __sanitizeBounds(self, new_x, new_y):
+        if new_x != -1 and new_x <= self.get_canvas().image.props.x:
+            self.props.x = self.get_canvas().image.props.x
+        if new_x != -1 and new_x + self.props.width >= self.get_canvas().image.props.width:
+            self.props.x = self.get_canvas().image.props.width - self.props.width
+        if new_y != -1 and new_y <= self.get_canvas().image.props.y:
+            self.props.y = self.get_canvas().image.props.y
+        if new_y != -1 and new_y + self.props.height >= self.get_canvas().image.props.height:
+            self.props.y = self.get_canvas().image.props.height - self.props.height
+
+    def __setMouseStateFromEvent(self, event):
+        cursor_max_distance = self.__getCursorMaxDistance()
+        if abs(event.y - self.props.y) < cursor_max_distance:
+            self.__setMouseState(self.MOUSE_STATE_TOP_DRAG, self.__top_side_cursor)
+            if abs(event.x - self.props.x) < cursor_max_distance:
+                self.__setMouseState(self.MOUSE_STATE_LEFT_DRAG | self.MOUSE_STATE_TOP_DRAG,
+                                     self.__top_left_cursor)
+
+            elif abs(event.x - (self.props.x + self.props.width)) < cursor_max_distance:
+                self.__setMouseState(self.MOUSE_STATE_RIGHT_DRAG | self.MOUSE_STATE_TOP_DRAG,
+                                     self.__top_right_cursor)
+
+        elif abs(event.y - (self.props.y + self.props.height)) < cursor_max_distance:
+            self.__setMouseState(self.MOUSE_STATE_BOTTOM_DRAG, self.__bottom_side_cursor)
+            if abs(event.x - (self.props.x + self.props.width)) < cursor_max_distance:
+                self.__setMouseState(self.MOUSE_STATE_RIGHT_DRAG | self.MOUSE_STATE_BOTTOM_DRAG,
+                                     self.__bottom_right_cursor)
+
+            elif abs(event.x - self.props.x) < cursor_max_distance:
+                self.__setMouseState(self.MOUSE_STATE_LEFT_DRAG | self.MOUSE_STATE_BOTTOM_DRAG,
+                                     self.__bottom_left_cursor)
+
+        elif abs(event.x - self.props.x) < cursor_max_distance:
+            self.__setMouseState(self.MOUSE_STATE_LEFT_DRAG, self.__left_side_cursor)
+        elif abs(event.x - (self.props.x + self.props.width)) < cursor_max_distance:
+            self.__setMouseState(self.MOUSE_STATE_RIGHT_DRAG, self.__right_side_cursor)
+
+        else:
+            self.__setNormalState()
+
+    def __getCursorMaxDistance(self):
+        return self.CURSOR_CHANGE_MAX_DISTANCE * (1 / self.get_canvas().get_scale())
+
+    def __updateMouseCursor(self):
+        window = self.get_canvas().get_window()
+        if self._state & self.MOUSE_STATE_TOP_DRAG:
+            if self._state & self.MOUSE_STATE_RIGHT_DRAG:
+                window.set_cursor(self.__top_right_cursor)
+                return
+            if self._state & self.MOUSE_STATE_LEFT_DRAG:
+                window.set_cursor(self.__top_left_cursor)
+                return
+            window.set_cursor(self.__top_side_cursor)
+        elif self._state & self.MOUSE_STATE_BOTTOM_DRAG:
+            if self._state & self.MOUSE_STATE_RIGHT_DRAG:
+                window.set_cursor(self.__bottom_right_cursor)
+                return
+            if self._state & self.MOUSE_STATE_LEFT_DRAG:
+                window.set_cursor(self.__bottom_left_cursor)
+                return
+            window.set_cursor(self.__bottom_side_cursor)
+        elif self._state & self.MOUSE_STATE_RIGHT_DRAG:
+            window.set_cursor(self.__right_side_cursor)
+            return
+        elif self._state & self.MOUSE_STATE_LEFT_DRAG:
+            window.set_cursor(self.__left_side_cursor)
+            return
+        else:
+            window.set_cursor(None)
+
+    def __setMouseState(self, mouse_state, cursor):
+        self._state = mouse_state
+        self.get_canvas().get_window().set_cursor(cursor)
+
+    def __setNormalState(self):
+        self.__setMouseState(self.MOUSE_STATE_NORMAL, None)
diff --git a/src/ocrfeeder/studio/customWidgets.py b/src/ocrfeeder/studio/customWidgets.py
index 46f9eeb..08bddad 100644
--- a/src/ocrfeeder/studio/customWidgets.py
+++ b/src/ocrfeeder/studio/customWidgets.py
@@ -18,549 +18,7 @@
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ###########################################################################
 
-from gi.repository import Gtk, Gdk, GooCanvas, GObject, GdkPixbuf
-import os.path
-import gettext
-_ = gettext.gettext
-
-class SelectableBoxesArea(GooCanvas.Canvas):
-
-    MINIMUM_ZOOM_HEIGHT = 50
-    IMAGE_FRAME_THICKNESS = 5
-    IMAGE_FRAME_COLOR = '#717171'
-
-#    __gtype_name__ = 'SelectableBoxesArea'
-
-    __gsignals__ = {
-        'selected_box' : (GObject.SIGNAL_RUN_LAST,
-                     GObject.TYPE_NONE,
-                     (GObject.TYPE_PYOBJECT,)),
-        'removed_box' : (GObject.SIGNAL_RUN_LAST,
-                     GObject.TYPE_NONE,
-                     (GObject.TYPE_PYOBJECT,)),
-        'updated_box' : (GObject.SIGNAL_RUN_LAST,
-                     GObject.TYPE_NONE,
-                     (GObject.TYPE_PYOBJECT,)),
-        'deselected_box' : (GObject.SIGNAL_RUN_LAST,
-                            GObject.TYPE_NONE,
-                            (GObject.TYPE_PYOBJECT,)),
-        'dragged_box' : (GObject.SIGNAL_RUN_LAST,
-                     GObject.TYPE_NONE,
-                     (GObject.TYPE_PYOBJECT,)),
-        'changed_zoom' : (GObject.SIGNAL_RUN_LAST,
-                     GObject.TYPE_NONE,
-                     (GObject.TYPE_FLOAT,))
-        }
-
-    def __init__(self, image_path):
-        GooCanvas.Canvas.__init__(self)
-        self.image = GooCanvas.CanvasImage()
-        self.frame = []
-        self.setBackgroundImage(image_path)
-        self.grab_focus(self.image)
-        #style = Gtk.widget_get_default_style()
-        #self.set_property('background-color', style.bg[Gtk.STATE_NORMAL].to_string())
-        self.realize()
-        self.get_root_item().add_child(self.image, 0)
-        self.area_fill_rgba = (94, 156, 235, 150)
-        self.area_stroke_rgba = (94, 156, 235, 250)
-        self.area_selected_stroke_rgba = (255, 255, 0, 255)
-        self.image.connect('button_press_event', self.startSelectionArea)
-        self.image.connect('button_release_event', self.endSelectionArea)
-        self.image.connect('motion_notify_event', self.updateSelectionArea)
-        self.image.connect('key_press_event', self.pressedKeyOnImage)
-        self.connect('scroll-event', self.scrollEventCb)
-        self.selected_areas = []
-        self.currently_created_area = None
-
-    def __rgbaToInteger(self, rgba):
-        r, g, b, a = rgba
-        return (r << 24) | (g << 16) | (b << 8) | a
-
-    def __getRectangleFromPoints(self, start_point, end_point):
-        start_x, start_y = start_point
-        start_x, start_y = self.convert_from_pixels(start_x, start_y)
-        end_x, end_y = end_point
-        width = end_x - start_x
-        height = end_y - start_y
-        if width < 0:
-            width = abs(width)
-            start_x = end_x
-        if height < 0:
-            height = abs(height)
-            start_y = end_y
-        return start_x, start_y, width, height
-
-    def setBackgroundImage(self, image_path):
-        pixbuf = GdkPixbuf.Pixbuf.new_from_file(image_path)
-        self.image.set_property('pixbuf', pixbuf)
-        self.set_bounds(0, 0, self.image.props.width * 2, self.image.props.height * 1.5)
-        #for line in self.frame:
-        #    line.remove()
-        #self.__createFrame()
-        #for line in self.frame:
-        #    self.get_root_item().add_child(line, 0)
-
-    def __createFrame(self):
-        line = GooCanvas.CanvasRect(fill_color = self.IMAGE_FRAME_COLOR, line_width = 0)
-        line.props.x = self.image.props.x + self.image.props.width
-        line.props.y = self.image.props.y
-        line.props.width = self.IMAGE_FRAME_THICKNESS
-        line.props.height = self.image.props.height + self.IMAGE_FRAME_THICKNESS
-        self.frame.append(line)
-
-        line = GooCanvas.CanvasRect(fill_color = self.IMAGE_FRAME_COLOR,
-                                    line_width = 0)
-        line.props.x = self.image.props.x
-        line.props.y = self.image.props.y + self.image.props.height
-        line.props.width = self.image.props.width + 1
-        line.props.height = self.IMAGE_FRAME_THICKNESS
-        self.frame.append(line)
-
-    def setCurrentArea(self, area):
-        self.set_data('current_area', area)
-
-    def setSelectedArea(self, area):
-        self.selected_areas = [area]
-
-    def getSelectedAreas(self):
-        return self.selected_areas
-
-    def selectAllAreas(self):
-        areas = self.getAllAreas()
-        for area in areas:
-            self.selectArea(area)
-
-    def selectArea(self, area):
-        if area not in self.selected_areas:
-            self.selected_areas.append(area)
-        area.set_property('stroke_color_rgba',self.__rgbaToInteger(self.area_selected_stroke_rgba))
-        self.grab_focus(area)
-        area.connect('key_press_event', self.keyPressed)
-        self.emit('selected_box', area)
-
-    def deselectAreas(self):
-        for selected_area in self.selected_areas:
-            if selected_area != None:
-                selected_area.set_property('stroke_color_rgba',
-                                           self.__rgbaToInteger(self.area_stroke_rgba))
-        # The deselectArea is not used in here for efficiency purposes
-        while self.selected_areas:
-            selected_area = self.selected_areas.pop(0)
-            self.emit('deselected_box', selected_area)
-        self.grab_focus(self.image)
-
-    def deselectArea(self, area):
-        if not area in self.selected_areas:
-            return False
-        if area != None:
-            area.set_property('stroke_color_rgba',
-                              self.__rgbaToInteger(self.area_stroke_rgba))
-        self.selected_areas.remove(area)
-        self.emit('deselected_box', area)
-        return True
-
-    def selectNextArea(self):
-        self.__selectSurroundingArea(-1)
-
-    def selectPreviousArea(self):
-        self.__selectSurroundingArea(1)
-
-    def deleteSelectedAreas(self):
-        areas_to_remove = []
-        while self.selected_areas:
-            selected_area = self.selected_areas.pop(0)
-            selected_area.remove()
-            areas_to_remove.append(selected_area)
-        self.get_window().set_cursor(None)
-        for area in areas_to_remove:
-            self.emit('removed_box', area)
-
-    def __selectSurroundingArea(self, area_offset):
-        areas = self.getAllAreas()
-        if not areas:
-            return
-        area_index = self.__getCurrentSelectedAreaIndex(areas)
-        area_index += area_offset
-        if abs(area_index) >= len(areas):
-            area_index = 0
-        self.deselectAreas()
-        self.selectArea(areas[area_index])
-
-    def __getCurrentSelectedAreaIndex(self, areas):
-        current_area = areas[0]
-        if self.selected_areas:
-            current_area = self.selected_areas[-1]
-        area_index = areas.index(current_area)
-        return area_index
-
-    def zoom(self, zoom_value, add_zoom = True):
-        new_zoom = zoom_value
-        set_zoom = False
-        if add_zoom:
-            current_zoom = self.get_scale()
-            new_zoom = current_zoom + zoom_value
-            if new_zoom * self.image.props.height >= self.MINIMUM_ZOOM_HEIGHT:
-                set_zoom = True
-        else:
-            if new_zoom * self.image.props.height >= self.MINIMUM_ZOOM_HEIGHT:
-                set_zoom = True
-        if set_zoom:
-            self.set_scale(new_zoom)
-            self.emit('changed_zoom', self.get_scale())
-
-    def getImageSize(self):
-        return self.image.props.height, self.image.props.width
-
-    def startSelectionArea(self, item, target, event):
-        if event.type != Gdk.EventType.BUTTON_PRESS:
-            return False
-        self.deselectAreas()
-        fill_color = self.__rgbaToInteger(self.area_fill_rgba)
-        stroke_color = self.__rgbaToInteger(self.area_stroke_rgba)
-        self.currently_created_area = Box(fill_color_rgba = fill_color, stroke_color_rgba = stroke_color)
-        x, y = event.x * self.get_scale(), event.y * self.get_scale()
-        self.currently_created_area.props.x = x
-        self.currently_created_area.props.y = y
-        self.currently_created_area.start_point = x, y
-        self.currently_created_area.connect('button_release_event', self.releasedWithinArea)
-        self.currently_created_area.connect('motion_notify_event', self.dragArea)
-        self.get_root_item().add_child(self.currently_created_area, -1)
-        return False
-
-    def updateSelectionArea(self, item, target, event):
-        if self.currently_created_area != None:
-            end_x = event.x
-            end_y = event.y
-            if event.x > self.image.props.width:
-                end_x = self.image.props.width
-            elif event.x < 0:
-                end_x = 0
-            if event.y > self.image.props.height:
-                end_y = self.image.props.height
-            elif event.y < 0:
-                end_y = 0
-            end_point = (end_x, end_y)
-            start_point = self.currently_created_area.start_point
-            x, y, width, height = self.__getRectangleFromPoints(start_point, end_point)
-            self.currently_created_area.props.x = x
-            self.currently_created_area.props.y = y
-            self.currently_created_area.props.width = width
-            self.currently_created_area.props.height = height
-            return True
-
-    def endSelectionArea(self, item, target, event):
-        self.deselectAreas()
-        if self.currently_created_area != None:
-            if self.currently_created_area.props.width < 5 or self.currently_created_area.props.height < 5:
-                self.currently_created_area.remove()
-                self.currently_created_area = None
-                return False
-            self.handleOverlapedAreas(self.getOverlapedAreas(self.currently_created_area))
-            self.deselectAreas()
-            self.selectArea(self.currently_created_area)
-        self.currently_created_area = None
-
-    def getOverlapedAreas(self, area):
-        offset = 2
-        start_point = (area.props.x + 5, area.props.y + offset)
-        end_point = (area.props.x + area.props.width - offset, area.props.y + area.props.height - offset)
-        bounds = GooCanvas.CanvasBounds()
-        bounds.x1, bounds.y1, bounds.x2, bounds.y2 = start_point + end_point
-        overlaped_items = self.get_items_in_area(bounds, True, True, True)
-        if area in overlaped_items:
-            overlaped_items.remove(area)
-        return overlaped_items
-
-    def handleOverlapedAreas(self, overlaped_areas):
-        for area in overlaped_areas:
-            if isinstance(area, Box) and \
-               area != self.currently_created_area and \
-               not area in self.selected_areas:
-                area.remove()
-                self.emit('removed_box', area)
-
-    def keyPressed(self, item, rect, event):
-        key_name = Gdk.keyval_name(event.keyval).lower()
-        if key_name in ['left', 'up', 'right', 'down']:
-            fast_mask = Gdk.ModifierType.SHIFT_MASK
-            step = 2
-            if event.state == fast_mask:
-                step = 10
-            if key_name == 'down':
-                item.props.y += step
-            elif key_name == 'up':
-                item.props.y -= step
-            elif key_name == 'right':
-                item.props.x += step
-            elif key_name == 'left':
-                item.props.x -= step
-            self.handleOverlapedAreas(self.getOverlapedAreas(item))
-            self.emit('updated_box', item)
-            return True
-
-    def pressedKeyOnImage(self, item, rect, event):
-        key_name = Gdk.keyval_name(event.keyval).lower()
-        if key_name in ['up', 'down'] and event.state == Gdk.ModifierType.CONTROL_MASK:
-            if key_name == 'up':
-                self.zoom(0.2)
-                return True
-            if key_name == 'down':
-                self.zoom(-0.2)
-                return True
-
-    def releasedWithinArea(self, item, target, event):
-        self.handleOverlapedAreas(self.getOverlapedAreas(item))
-        self.emit('updated_box', item)
-
-    def dragArea(self, item, target, event):
-        self.emit('dragged_box', item)
-
-    def scrollEventCb(self, widget, event):
-        # Note: This catches all modifier combinations that use Ctrl. Add
-        #       further combinations _before_ for them to take precedence!
-        if event.state & Gdk.ModifierType.CONTROL_MASK:
-            if event.direction == Gdk.ScrollDirection.UP or \
-               event.direction == Gdk.ScrollDirection.RIGHT:
-                self.zoom(0.05)
-                return True # we have handled the event - don't propagate to parent
-            elif event.direction == Gdk.ScrollDirection.DOWN or \
-                 event.direction == Gdk.ScrollDirection.LEFT:
-                self.zoom(-0.05)
-                return True # we have handled the event - don't propagate to parent
-        elif event.state & Gdk.ModifierType.SHIFT_MASK:
-            if event.direction == Gdk.ScrollDirection.UP:
-                event.direction = Gdk.ScrollDirection.LEFT
-                return False # we have not handled the (new) event - propagate to parent
-            elif event.direction == Gdk.ScrollDirection.DOWN:
-                event.direction = Gdk.ScrollDirection.RIGHT
-                return False # we have not handled the (new) event - propagate to parent
-
-    def setAreaFillRgba(self, rgba):
-        self.area_fill_rgba = rgba
-
-    def setAreaStrokeRgba(self, rgba):
-        self.area_stroke_rgba = rgba
-
-    def addArea(self, dimensions):
-        x, y, width, height = dimensions
-        fill_color = self.__rgbaToInteger(self.area_fill_rgba)
-        stroke_color = self.__rgbaToInteger(self.area_stroke_rgba)
-        new_area = Box(fill_color_rgba = fill_color, stroke_color_rgba = stroke_color)
-        new_area.props.x = x
-        new_area.props.y = y
-        new_area.props.width = width
-        new_area.props.height = height
-        new_area.connect('button_release_event', self.releasedWithinArea)
-        new_area.connect('motion_notify_event', self.dragArea)
-        self.handleOverlapedAreas(self.getOverlapedAreas(new_area))
-        self.get_root_item().add_child(new_area, -1)
-        return new_area
-
-    def clearAreas(self):
-        areas = self.getAllAreas()
-        for area in areas:
-            area.remove()
-
-    def getAllAreas(self):
-        areas = [area for area in self.get_items_in_area(self.bounds, True, True, True) if isinstance(area, 
Box) and area not in self.frame]
-        return areas
-
-class Box(GooCanvas.CanvasRect):
-
-    MOUSE_STATE_NORMAL = 0
-    MOUSE_STATE_TOP_DRAG = 1 << 0
-    MOUSE_STATE_BOTTOM_DRAG = 1 << 1
-    MOUSE_STATE_LEFT_DRAG = 1 << 2
-    MOUSE_STATE_RIGHT_DRAG = 1 << 3
-
-    CURSOR_CHANGE_MAX_DISTANCE = 5
-    __bottom_side_cursor = Gdk.Cursor(Gdk.CursorType.BOTTOM_SIDE)
-    __top_side_cursor = Gdk.Cursor(Gdk.CursorType.TOP_SIDE)
-    __left_side_cursor = Gdk.Cursor(Gdk.CursorType.LEFT_SIDE)
-    __right_side_cursor = Gdk.Cursor(Gdk.CursorType.RIGHT_SIDE)
-    __top_left_cursor = Gdk.Cursor(Gdk.CursorType.TOP_LEFT_CORNER)
-    __top_right_cursor = Gdk.Cursor(Gdk.CursorType.TOP_RIGHT_CORNER)
-    __bottom_left_cursor = Gdk.Cursor(Gdk.CursorType.BOTTOM_LEFT_CORNER)
-    __bottom_right_cursor = Gdk.Cursor(Gdk.CursorType.BOTTOM_RIGHT_CORNER)
-    __drag_cursor = Gdk.Cursor(Gdk.CursorType.FLEUR)
-
-    def __init__(self, *args, **kwargs):
-        super(Box, self).__init__(*args, **kwargs)
-        self._state = self.MOUSE_STATE_NORMAL
-        self.connect('motion-notify-event', self.__motionNotifyEventCb)
-        self.connect('button-release-event', self.__buttonReleaseEventCb)
-        self.connect('button-press-event', self.__buttonPressEventCb)
-        # Reset the cursor
-        self.connect('leave-notify-event', self.__leaveNotifyEventCb)
-        # To help on the creation of the box
-        self.start_point = None
-        self._distance = None
-
-    def __leaveNotifyEventCb(self, item, target, event):
-        if event.state & Gdk.ModifierType.BUTTON1_MASK:
-            return True
-        self.__setNormalState()
-
-    def __buttonPressEventCb(self, item, target, event):
-        deselected = False
-        if event.state & Gdk.ModifierType.SHIFT_MASK == 0:
-            self.get_canvas().deselectAreas()
-        else:
-            deselected = self.get_canvas().deselectArea(self)
-        if deselected:
-            return True
-        self.get_canvas().selectArea(self)
-        if self._state == self.MOUSE_STATE_NORMAL:
-            self.get_canvas().get_window().set_cursor(self.__drag_cursor)
-            self._distance = event.x - self.props.x, event.y - self.props.y
-        return True
-
-    def __buttonReleaseEventCb(self, item, target, event):
-        self._distance = None
-        self.get_canvas().get_window().set_cursor(None)
-
-    def __motionNotifyEventCb(self, item, target, event):
-        if self._distance:
-            distance_x, distance_y = self._distance
-            new_x, new_y = event.x - distance_x, event.y - distance_y
-        else:
-            new_x, new_y = self.props.x, self.props.y
-        if event.state & Gdk.ModifierType.BUTTON1_MASK:
-            old_y = int(self.props.y)
-            old_x = int(self.props.x)
-            if self._state & self.MOUSE_STATE_TOP_DRAG:
-                new_x = -1
-                new_y = self.props.y = max(0, int(event.y))
-                new_height = self.props.height + old_y - new_y
-                if new_height < 5:
-                    self.props.y = old_y + self.props.height - 5
-                    self._state &= ~self.MOUSE_STATE_TOP_DRAG
-                    self._state |= self.MOUSE_STATE_BOTTOM_DRAG
-                    self.__updateMouseCursor()
-                else:
-                    self.props.height = new_height
-            if self._state & self.MOUSE_STATE_BOTTOM_DRAG:
-                new_x = -1
-                new_y = -1
-                new_height = min(self.get_canvas().image.props.height, int(event.y)) \
-                             - old_y
-                if new_height < 5:
-                    self.props.height = 5
-                    self._state &= ~self.MOUSE_STATE_BOTTOM_DRAG
-                    self._state |= self.MOUSE_STATE_TOP_DRAG
-                    self.__updateMouseCursor()
-                else:
-                    self.props.height = new_height
-            if self._state & self.MOUSE_STATE_LEFT_DRAG:
-                new_x = max(0, int(event.x))
-                new_y = -1
-                self.props.x = new_x
-                new_width = self.props.width + old_x - new_x
-                if new_width < 5:
-                    self.props.x = old_x + self.props.width - 5
-                    self._state &= ~self.MOUSE_STATE_LEFT_DRAG
-                    self._state |= self.MOUSE_STATE_RIGHT_DRAG
-                    self.__updateMouseCursor()
-                else:
-                    self.props.width = new_width
-            if self._state & self.MOUSE_STATE_RIGHT_DRAG:
-                new_x = -1
-                new_y = -1
-                new_width = min(self.get_canvas().image.props.width, int(event.x)) \
-                            - old_x
-                if new_width < 5:
-                    self.props.width = 5
-                    self._state &= ~self.MOUSE_STATE_RIGHT_DRAG
-                    self._state |= self.MOUSE_STATE_LEFT_DRAG
-                    self.__updateMouseCursor()
-                else:
-                    self.props.width = new_width
-            if self._state == self.MOUSE_STATE_NORMAL:
-                self.props.x = new_x
-                self.props.y = new_y
-                self.__sanitizeBounds(new_x, new_y)
-            return False
-
-        self.__setMouseStateFromEvent(event)
-        return True
-
-    def __sanitizeBounds(self, new_x, new_y):
-        if new_x != -1 and new_x <= self.get_canvas().image.props.x:
-            self.props.x = self.get_canvas().image.props.x
-        if new_x != -1 and new_x + self.props.width >= self.get_canvas().image.props.width:
-            self.props.x = self.get_canvas().image.props.width - self.props.width
-        if new_y != -1 and new_y <= self.get_canvas().image.props.y:
-            self.props.y = self.get_canvas().image.props.y
-        if new_y != -1 and new_y + self.props.height >= self.get_canvas().image.props.height:
-            self.props.y = self.get_canvas().image.props.height - self.props.height
-
-    def __setMouseStateFromEvent(self, event):
-        cursor_max_distance = self.__getCursorMaxDistance()
-        if abs(event.y - self.props.y) < cursor_max_distance:
-            self.__setMouseState(self.MOUSE_STATE_TOP_DRAG, self.__top_side_cursor)
-            if abs(event.x - self.props.x) < cursor_max_distance:
-                self.__setMouseState(self.MOUSE_STATE_LEFT_DRAG | self.MOUSE_STATE_TOP_DRAG,
-                                     self.__top_left_cursor)
-
-            elif abs(event.x - (self.props.x + self.props.width)) < cursor_max_distance:
-                self.__setMouseState(self.MOUSE_STATE_RIGHT_DRAG | self.MOUSE_STATE_TOP_DRAG,
-                                     self.__top_right_cursor)
-
-        elif abs(event.y - (self.props.y + self.props.height)) < cursor_max_distance:
-            self.__setMouseState(self.MOUSE_STATE_BOTTOM_DRAG, self.__bottom_side_cursor)
-            if abs(event.x - (self.props.x + self.props.width)) < cursor_max_distance:
-                self.__setMouseState(self.MOUSE_STATE_RIGHT_DRAG | self.MOUSE_STATE_BOTTOM_DRAG,
-                                     self.__bottom_right_cursor)
-
-            elif abs(event.x - self.props.x) < cursor_max_distance:
-                self.__setMouseState(self.MOUSE_STATE_LEFT_DRAG | self.MOUSE_STATE_BOTTOM_DRAG,
-                                     self.__bottom_left_cursor)
-
-        elif abs(event.x - self.props.x) < cursor_max_distance:
-            self.__setMouseState(self.MOUSE_STATE_LEFT_DRAG, self.__left_side_cursor)
-        elif abs(event.x - (self.props.x + self.props.width)) < cursor_max_distance:
-            self.__setMouseState(self.MOUSE_STATE_RIGHT_DRAG, self.__right_side_cursor)
-
-        else:
-            self.__setNormalState()
-
-    def __getCursorMaxDistance(self):
-        return self.CURSOR_CHANGE_MAX_DISTANCE * (1 / self.get_canvas().get_scale())
-
-    def __updateMouseCursor(self):
-        window = self.get_canvas().get_window()
-        if self._state & self.MOUSE_STATE_TOP_DRAG:
-            if self._state & self.MOUSE_STATE_RIGHT_DRAG:
-                window.set_cursor(self.__top_right_cursor)
-                return
-            if self._state & self.MOUSE_STATE_LEFT_DRAG:
-                window.set_cursor(self.__top_left_cursor)
-                return
-            window.set_cursor(self.__top_side_cursor)
-        elif self._state & self.MOUSE_STATE_BOTTOM_DRAG:
-            if self._state & self.MOUSE_STATE_RIGHT_DRAG:
-                window.set_cursor(self.__bottom_right_cursor)
-                return
-            if self._state & self.MOUSE_STATE_LEFT_DRAG:
-                window.set_cursor(self.__bottom_left_cursor)
-                return
-            window.set_cursor(self.__bottom_side_cursor)
-        elif self._state & self.MOUSE_STATE_RIGHT_DRAG:
-            window.set_cursor(self.__right_side_cursor)
-            return
-        elif self._state & self.MOUSE_STATE_LEFT_DRAG:
-            window.set_cursor(self.__left_side_cursor)
-            return
-        else:
-            window.set_cursor(None)
-
-    def __setMouseState(self, mouse_state, cursor):
-        self._state = mouse_state
-        self.get_canvas().get_window().set_cursor(cursor)
-
-    def __setNormalState(self):
-        self.__setMouseState(self.MOUSE_STATE_NORMAL, None)
+from gi.repository import Gtk
 
 class PlainFrame(Gtk.Frame):
 
diff --git a/src/ocrfeeder/studio/widgetModeler.py b/src/ocrfeeder/studio/widgetModeler.py
index 283566b..69ad03f 100644
--- a/src/ocrfeeder/studio/widgetModeler.py
+++ b/src/ocrfeeder/studio/widgetModeler.py
@@ -18,7 +18,7 @@
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ###########################################################################
 
-from customWidgets import SelectableBoxesArea
+from boxesarea import BoxesArea
 from dataHolder import DataBox, PageData, TEXT_TYPE, IMAGE_TYPE
 from ocrfeeder.feeder.documentGeneration import OdtGenerator, HtmlGenerator, PlaintextGenerator, PdfGenerator
 from ocrfeeder.feeder.imageManipulation import *
@@ -55,7 +55,7 @@ class ImageReviewer(Gtk.HPaned):
         self.text_box_fill_color = (94, 156, 235, 150)
         self.box_stroke_color = (94, 156, 235, 250)
         self.image_box_fill_color = (0, 183, 0, 150)
-        self.selectable_boxes_area = SelectableBoxesArea(self.path_to_image)
+        self.selectable_boxes_area = BoxesArea(self.path_to_image)
         self.selectable_boxes_area.connect('selected_box', self.selectedBox)
         self.selectable_boxes_area.connect('removed_box', self.removedBox)
         self.selectable_boxes_area.connect('updated_box', self.updatedBox)


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