--- /dev/null
+"""
+Copyright 2007 Free Software Foundation, Inc.
+This file is part of GNU Radio
+
+GNU Radio Companion 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 2
+of the License, or (at your option) any later version.
+
+GNU Radio Companion 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, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+"""
+
+from Element import Element
+from Constants import \
+ PORT_SEPARATION, CONNECTOR_EXTENSION_MINIMAL, \
+ CONNECTOR_EXTENSION_INCREMENT, \
+ PORT_LABEL_PADDING, PORT_MIN_WIDTH
+import Utils
+import Colors
+import pygtk
+pygtk.require('2.0')
+import gtk
+
+PORT_MARKUP_TMPL="""\
+<span foreground="black" font_desc="Sans 7.5">$encode($port.get_name())</span>"""
+
+class Port(Element):
+ """The graphical port."""
+
+ def __init__(self, *args, **kwargs):
+ """
+ Port contructor.
+ Create list of connector coordinates.
+ """
+ Element.__init__(self)
+ self.connector_coordinates = dict()
+
+ def update(self):
+ """Create new areas and labels for the port."""
+ self.clear()
+ #get current rotation
+ rotation = self.get_rotation()
+ #get all sibling ports
+ if self.is_source(): ports = self.get_parent().get_sources()
+ elif self.is_sink(): ports = self.get_parent().get_sinks()
+ #get the max width
+ self.W = max([port.W for port in ports] + [PORT_MIN_WIDTH])
+ #get a numeric index for this port relative to its sibling ports
+ index = ports.index(self)
+ length = len(ports)
+ #reverse the order of ports for these rotations
+ if rotation in (180, 270): index = length-index-1
+ offset = (self.get_parent().H - length*self.H - (length-1)*PORT_SEPARATION)/2
+ #create areas and connector coordinates
+ if (self.is_sink() and rotation == 0) or (self.is_source() and rotation == 180):
+ x = -1*self.W
+ y = (PORT_SEPARATION+self.H)*index+offset
+ self.add_area((x, y), (self.W, self.H))
+ self._connector_coordinate = (x-1, y+self.H/2)
+ elif (self.is_source() and rotation == 0) or (self.is_sink() and rotation == 180):
+ x = self.get_parent().W
+ y = (PORT_SEPARATION+self.H)*index+offset
+ self.add_area((x, y), (self.W, self.H))
+ self._connector_coordinate = (x+1+self.W, y+self.H/2)
+ elif (self.is_source() and rotation == 90) or (self.is_sink() and rotation == 270):
+ y = -1*self.W
+ x = (PORT_SEPARATION+self.H)*index+offset
+ self.add_area((x, y), (self.H, self.W))
+ self._connector_coordinate = (x+self.H/2, y-1)
+ elif (self.is_sink() and rotation == 90) or (self.is_source() and rotation == 270):
+ y = self.get_parent().W
+ x = (PORT_SEPARATION+self.H)*index+offset
+ self.add_area((x, y), (self.H, self.W))
+ self._connector_coordinate = (x+self.H/2, y+1+self.W)
+ #the connector length
+ self._connector_length = CONNECTOR_EXTENSION_MINIMAL + CONNECTOR_EXTENSION_INCREMENT*index
+
+ def _create_labels(self):
+ """Create the labels for the socket."""
+ self._bg_color = Colors.get_color(self.get_color())
+ #create the layout
+ layout = gtk.DrawingArea().create_pango_layout('')
+ layout.set_markup(Utils.parse_template(PORT_MARKUP_TMPL, port=self))
+ self.w, self.h = layout.get_pixel_size()
+ self.W, self.H = 2*PORT_LABEL_PADDING+self.w, 2*PORT_LABEL_PADDING+self.h
+ #create the pixmap
+ pixmap = self.get_parent().get_parent().new_pixmap(self.w, self.h)
+ gc = pixmap.new_gc()
+ gc.set_foreground(self._bg_color)
+ pixmap.draw_rectangle(gc, True, 0, 0, self.w, self.h)
+ pixmap.draw_layout(gc, 0, 0, layout)
+ #create the images
+ self.horizontal_label = image = pixmap.get_image(0, 0, self.w, self.h)
+ if self.is_vertical():
+ self.vertical_label = vimage = gtk.gdk.Image(gtk.gdk.IMAGE_NORMAL, pixmap.get_visual(), self.h, self.w)
+ for i in range(self.w):
+ for j in range(self.h): vimage.put_pixel(j, self.w-i-1, image.get_pixel(i, j))
+
+ def draw(self, gc, window):
+ """
+ Draw the socket with a label.
+ @param gc the graphics context
+ @param window the gtk window to draw on
+ """
+ Element.draw(
+ self, gc, window, bg_color=self._bg_color,
+ border_color=self.is_highlighted() and Colors.HIGHLIGHT_COLOR or Colors.BORDER_COLOR,
+ )
+ X,Y = self.get_coordinate()
+ (x,y),(w,h) = self.areas_dict[self.get_rotation()][0] #use the first area's sizes to place the labels
+ if self.is_horizontal():
+ window.draw_image(gc, self.horizontal_label, 0, 0, x+X+(self.W-self.w)/2, y+Y+(self.H-self.h)/2, -1, -1)
+ elif self.is_vertical():
+ window.draw_image(gc, self.vertical_label, 0, 0, x+X+(self.H-self.h)/2, y+Y+(self.W-self.w)/2, -1, -1)
+
+ def get_connector_coordinate(self):
+ """
+ Get the coordinate where connections may attach to.
+ @return the connector coordinate (x, y) tuple
+ """
+ x,y = self._connector_coordinate
+ X,Y = self.get_coordinate()
+ return (x+X, y+Y)
+
+ def get_connector_direction(self):
+ """
+ Get the direction that the socket points: 0,90,180,270.
+ This is the rotation degree if the socket is an output or
+ the rotation degree + 180 if the socket is an input.
+ @return the direction in degrees
+ """
+ if self.is_source(): return self.get_rotation()
+ elif self.is_sink(): return (self.get_rotation() + 180)%360
+
+ def get_connector_length(self):
+ """
+ Get the length of the connector.
+ The connector length increases as the port index changes.
+ @return the length in pixels
+ """
+ return self._connector_length
+
+ def get_rotation(self):
+ """
+ Get the parent's rotation rather than self.
+ @return the parent's rotation
+ """
+ return self.get_parent().get_rotation()
+
+ def move(self, delta_coor):
+ """
+ Move the parent rather than self.
+ @param delta_corr the (delta_x, delta_y) tuple
+ """
+ self.get_parent().move(delta_coor)
+
+ def rotate(self, direction):
+ """
+ Rotate the parent rather than self.
+ @param direction degrees to rotate
+ """
+ self.get_parent().rotate(direction)
+
+ def get_coordinate(self):
+ """
+ Get the parent's coordinate rather than self.
+ @return the parents coordinate
+ """
+ return self.get_parent().get_coordinate()
+
+ def set_highlighted(self, highlight):
+ """
+ Set the parent highlight rather than self.
+ @param highlight true to enable highlighting
+ """
+ self.get_parent().set_highlighted(highlight)
+
+ def is_highlighted(self):
+ """
+ Get the parent's is highlight rather than self.
+ @return the parent's highlighting status
+ """
+ return self.get_parent().is_highlighted()
projects / debian / gnuradio / blobdiff