Merge branch 'dfsg-orig'
[debian/gnuradio] / grc / gui / Element.py
index 3151917237785ad299ac0cc7b756e74ba8d2d2a8..e020c5caa9ba5854bf91f2dc0b8ff0deb00acfa6 100644 (file)
@@ -1,5 +1,5 @@
 """
-Copyright 2007 Free Software Foundation, Inc.
+Copyright 2007, 2008, 2009 Free Software Foundation, Inc.
 This file is part of GNU Radio
 
 GNU Radio Companion is free software; you can redistribute it and/or
@@ -17,11 +17,6 @@ along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 """
 
-import Colors
-import pygtk
-pygtk.require('2.0')
-import gtk
-import pango
 from Constants import LINE_SELECT_SENSITIVITY
 from Constants import POSSIBLE_ROTATIONS
 
@@ -32,7 +27,7 @@ class Element(object):
        and methods to detect selection of those areas.
        """
 
-       def __init__(self, *args, **kwargs):
+       def __init__(self):
                """
                Make a new list of rectangular areas and lines, and set the coordinate and the rotation.
                """
@@ -61,6 +56,21 @@ class Element(object):
                rotation = rotation or self.get_rotation()
                return rotation in (90, 270)
 
+       def create_labels(self):
+               """
+               Create labels (if applicable) and call on all children.
+               Call this base method before creating labels in the element.
+               """
+               for child in self.get_children(): child.create_labels()
+
+       def create_shapes(self):
+               """
+               Create shapes (if applicable) and call on all children.
+               Call this base method before creating shapes in the element.
+               """
+               self.clear()
+               for child in self.get_children(): child.create_shapes()
+
        def draw(self, gc, window, border_color, bg_color):
                """
                Draw in the given window.
@@ -70,14 +80,14 @@ class Element(object):
                @param bg_color the color for the inside of the rectangle
                """
                X,Y = self.get_coordinate()
-               for (rX,rY),(W,H) in self.areas_dict[self.get_rotation()]:
+               for (rX,rY),(W,H) in self._areas_list:
                        aX = X + rX
                        aY = Y + rY
                        gc.set_foreground(bg_color)
                        window.draw_rectangle(gc, True, aX, aY, W, H)
                        gc.set_foreground(border_color)
                        window.draw_rectangle(gc, False, aX, aY, W, H)
-               for (x1, y1),(x2, y2) in self.lines_dict[self.get_rotation()]:
+               for (x1, y1),(x2, y2) in self._lines_list:
                        gc.set_foreground(border_color)
                        window.draw_line(gc, X+x1, Y+y1, X+x2, Y+y2)
 
@@ -90,8 +100,8 @@ class Element(object):
 
        def clear(self):
                """Empty the lines and areas."""
-               self.areas_dict = dict((rotation, list()) for rotation in POSSIBLE_ROTATIONS)
-               self.lines_dict = dict((rotation, list()) for rotation in POSSIBLE_ROTATIONS)
+               self._areas_list = list()
+               self._lines_list = list()
 
        def set_coordinate(self, coor):
                """
@@ -136,7 +146,7 @@ class Element(object):
                X, Y = self.get_coordinate()
                self.set_coordinate((X+deltaX, Y+deltaY))
 
-       def add_area(self, rel_coor, area, rotation=None):
+       def add_area(self, rel_coor, area):
                """
                Add an area to the area list.
                An area is actually a coordinate relative to the main coordinate
@@ -144,25 +154,21 @@ class Element(object):
                A positive width is to the right of the coordinate.
                A positive height is above the coordinate.
                The area is associated with a rotation.
-               If rotation is not specified, the element's current rotation is used.
                @param rel_coor (x,y) offset from this element's coordinate
                @param area (width,height) tuple
-               @param rotation rotation in degrees
                """
-               self.areas_dict[rotation or self.get_rotation()].append((rel_coor, area))
+               self._areas_list.append((rel_coor, area))
 
-       def add_line(self, rel_coor1, rel_coor2, rotation=None):
+       def add_line(self, rel_coor1, rel_coor2):
                """
                Add a line to the line list.
                A line is defined by 2 relative coordinates.
                Lines must be horizontal or vertical.
                The line is associated with a rotation.
-               If rotation is not specified, the element's current rotation is used.
                @param rel_coor1 relative (x1,y1) tuple
                @param rel_coor2 relative (x2,y2) tuple
-               @param rotation rotation in degrees
                """
-               self.lines_dict[rotation or self.get_rotation()].append((rel_coor1, rel_coor2))
+               self._lines_list.append((rel_coor1, rel_coor2))
 
        def what_is_selected(self, coor, coor_m=None):
                """
@@ -183,24 +189,24 @@ class Element(object):
                if coor_m:
                        x_m, y_m = [a-b for a,b in zip(coor_m, self.get_coordinate())]
                        #handle rectangular areas
-                       for (x1,y1), (w,h) in self.areas_dict[self.get_rotation()]:
+                       for (x1,y1), (w,h) in self._areas_list:
                                if in_between(x1, x, x_m) and in_between(y1, y, y_m) or \
                                        in_between(x1+w, x, x_m) and in_between(y1, y, y_m) or \
                                        in_between(x1, x, x_m) and in_between(y1+h, y, y_m) or \
                                        in_between(x1+w, x, x_m) and in_between(y1+h, y, y_m):
                                        return self
                        #handle horizontal or vertical lines
-                       for (x1, y1), (x2, y2) in self.lines_dict[self.get_rotation()]:
+                       for (x1, y1), (x2, y2) in self._lines_list:
                                if in_between(x1, x, x_m) and in_between(y1, y, y_m) or \
                                        in_between(x2, x, x_m) and in_between(y2, y, y_m):
                                        return self
                        return None
                else:
                        #handle rectangular areas
-                       for (x1,y1), (w,h) in self.areas_dict[self.get_rotation()]:
+                       for (x1,y1), (w,h) in self._areas_list:
                                if in_between(x, x1, x1+w) and in_between(y, y1, y1+h): return self
                        #handle horizontal or vertical lines
-                       for (x1, y1), (x2, y2) in self.lines_dict[self.get_rotation()]:
+                       for (x1, y1), (x2, y2) in self._lines_list:
                                if x1 == x2: x1, x2 = x1-LINE_SELECT_SENSITIVITY, x2+LINE_SELECT_SENSITIVITY
                                if y1 == y2: y1, y2 = y1-LINE_SELECT_SENSITIVITY, y2+LINE_SELECT_SENSITIVITY
                                if in_between(x, x1, x2) and in_between(y, y1, y2): return self
@@ -220,7 +226,3 @@ class Element(object):
                if rotation not in POSSIBLE_ROTATIONS:
                        raise Exception('"%s" is not one of the possible rotations: (%s)'%(rotation, POSSIBLE_ROTATIONS))
                self.rotation = rotation
-
-       def update(self):
-               """Do nothing for the update. Dummy method."""
-               pass