Added goompy

goompy_testing/example.py

@@ -0,0 +1,141 @@
+#!/usr/bin/env python
+'''
+Example of using GooMPy with Tkinter
+
+Copyright (C) 2015 Alec Singer and Simon D. Levy
+
+This code is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as 
+published by the Free Software Foundation, either version 3 of the 
+License, or (at your option) any later version.
+This code 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 Lesser General Public License 
+along with this code.  If not, see <http://www.gnu.org/licenses/>.
+'''
+
+from tkinter import Tk, Canvas, Label, Frame, IntVar, Radiobutton, Button
+from PIL import ImageTk
+
+from goompy import GooMPy
+
+WIDTH = 640
+HEIGHT = 640
+
+LATITUDE  =  38.4064262
+LONGITUDE = -110.794115
+ZOOM = 18
+MAPTYPE = 'satellite'
+
+class UI(Tk):
+
+    def __init__(self):
+
+        Tk.__init__(self)
+
+        self.geometry('%dx%d+500+500' % (WIDTH,HEIGHT))
+        self.title('GooMPy')
+
+        self.canvas = Canvas(self, width=WIDTH, height=HEIGHT)
+
+        self.canvas.pack()
+
+        self.bind("<Key>", self.check_quit)
+        self.bind('<B1-Motion>', self.drag)
+        self.bind('<Button-1>', self.click)
+
+        self.label = Label(self.canvas)
+
+        self.radiogroup = Frame(self.canvas)
+        self.radiovar = IntVar()
+        self.maptypes = ['roadmap', 'terrain', 'satellite', 'hybrid']
+        self.add_radio_button('Road Map',  0)
+        self.add_radio_button('Terrain',   1)
+        self.add_radio_button('Satellite', 2)
+        self.add_radio_button('Hybrid',    3)
+
+        self.zoom_in_button  = self.add_zoom_button('+', +1)
+        self.zoom_out_button = self.add_zoom_button('-', -1)
+
+        self.zoomlevel = ZOOM
+
+        maptype_index = 2
+        self.radiovar.set(maptype_index)
+
+        self.goompy = GooMPy(WIDTH, HEIGHT, LATITUDE, LONGITUDE, ZOOM, MAPTYPE, 1000)
+
+        self.restart()
+
+    def add_zoom_button(self, text, sign):
+
+        button = Button(self.canvas, text=text, width=1, command=lambda:self.zoom(sign))
+        return button
+
+    def reload(self):
+
+        self.coords = None
+        self.redraw()
+
+        self['cursor']  = ''
+
+
+    def restart(self):
+
+        # A little trick to get a watch cursor along with loading
+        self['cursor']  = 'watch'
+        self.after(1, self.reload)
+
+    def add_radio_button(self, text, index):
+
+        maptype = self.maptypes[index]
+        Radiobutton(self.radiogroup, text=maptype, variable=self.radiovar, value=index, 
+                command=lambda:self.usemap(maptype)).grid(row=0, column=index)
+
+    def click(self, event):
+
+        self.coords = event.x, event.y
+
+    def drag(self, event):
+
+        self.goompy.move(self.coords[0]-event.x, self.coords[1]-event.y)
+        self.image = self.goompy.getImage()
+        self.redraw()
+        self.coords = event.x, event.y
+
+    def redraw(self):
+
+        self.image = self.goompy.getImage()
+        self.image_tk = ImageTk.PhotoImage(self.image)
+        self.label['image'] = self.image_tk
+
+        self.label.place(x=0, y=0, width=WIDTH, height=HEIGHT) 
+
+        self.radiogroup.place(x=0,y=0)
+
+        x = int(self.canvas['width']) - 50
+        y = int(self.canvas['height']) - 80
+
+        self.zoom_in_button.place(x= x, y=y)
+        self.zoom_out_button.place(x= x, y=y+30)
+
+    def usemap(self, maptype):
+
+        self.goompy.useMaptype(maptype)
+        self.restart()
+
+    def zoom(self, sign):
+
+        newlevel = self.zoomlevel + sign
+        if newlevel > 0 and newlevel < 22:
+            self.zoomlevel = newlevel
+            self.goompy.useZoom(newlevel)
+            self.restart()
+
+    def check_quit(self, event):
+
+        if ord(event.char) == 27: # ESC
+            exit(0)
+
+UI().mainloop()