Web   ·   Wiki   ·   Activities   ·   Blog   ·   Lists   ·   Chat   ·   Meeting   ·   Bugs   ·   Git   ·   Translate   ·   Archive   ·   People   ·   Donate
summaryrefslogtreecommitdiffstats
path: root/activity.py
blob: 2d34eee79384b2144614ca97745d43c92bc1ef3b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
# Physics, a 2D Physics Playground for Kids

# Copyright (C) 2008  Alex Levenson and Brian Jordan
# Copyright (C) 2012  Daniel Francis
# Copyright (C) 2012-13  Walter Bender
# Copyright (C) 2013  Sai Vineet
# Copyright (C) 2012-13  Sugar Labs

#  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/>.

import os
import gtk
import csv
import tempfile
import json
from StringIO import StringIO
from gettext import gettext as _
import logging

import pygame
import sugargame
import sugargame.canvas

from sugar.activity import activity
from sugar.activity.widgets import ActivityToolbarButton
from sugar.activity.widgets import StopButton
from sugar.graphics.radiotoolbutton import RadioToolButton
from sugar.graphics.toolbutton import ToolButton
from sugar.graphics.alert import ConfirmationAlert
from sugar.graphics.toolbarbox import ToolbarBox
from sugar.graphics.toolbarbox import ToolbarButton
from sugar.graphics.style import GRID_CELL_SIZE
from sugar.datastore import datastore

import tools
import physics


class PhysicsActivity(activity.Activity):
    def __init__(self, handle):
        super(PhysicsActivity, self).__init__(handle)
        self.metadata['mime_type'] = 'application/x-physics-activity'
        self.add_events(gtk.gdk.ALL_EVENTS_MASK |
                        gtk.gdk.VISIBILITY_NOTIFY_MASK)

        self.connect('visibility-notify-event', self._focus_event)
        self.connect('window-state-event', self._window_event)

        self._canvas = sugargame.canvas.PygameCanvas(self)
        self.game = physics.main(self)
        self.preview = None
        self.build_toolbar()

        self.set_canvas(self._canvas)
        gtk.gdk.screen_get_default().connect('size-changed',
                                             self.__configure_cb)

        logging.debug(os.path.join(
                activity.get_activity_root(), 'data', 'data'))
        self._canvas.run_pygame(self.game.run)

    def __configure_cb(self, event):
        ''' Screen size has changed '''
        self.write_file(os.path.join(
                activity.get_activity_root(), 'data', 'data'))
        pygame.display.set_mode((gtk.gdk.screen_width(),
                                 gtk.gdk.screen_height() - 2 * GRID_CELL_SIZE),
                                pygame.RESIZABLE)
        self.read_file(os.path.join(
                activity.get_activity_root(), 'data', 'data'))
        self.game.run(True)

    def read_file(self, file_path):
        self.game.read_file(file_path)

    def write_file(self, file_path):
        self.game.write_file(file_path)

    def get_preview(self):
        """ Custom preview code to get image from pygame. """
        if self.preview:
            return self.preview
        surface = pygame.display.get_surface()
        width, height = surface.get_width(), surface.get_height()
        pixbuf = gtk.gdk.pixbuf_new_from_data(pygame.image.tostring(surface,
                                                                    "RGB"),
                                              gtk.gdk.COLORSPACE_RGB, 0, 8,
                                              width, height,
                                              3 * width)
        pixbuf = pixbuf.scale_simple(300, 225, gtk.gdk.INTERP_BILINEAR)

        preview_data = []

        def save_func(buf, data):
            data.append(buf)

        pixbuf.save_to_callback(save_func, 'png', user_data=preview_data)
        preview_data = ''.join(preview_data)

        return preview_data

    def build_toolbar(self):
        self.max_participants = 1
        toolbar_box = ToolbarBox()
        activity_button = ActivityToolbarButton(self)
        toolbar_box.toolbar.insert(activity_button, 0)
        activity_button.show()

        create_toolbar = ToolbarButton()
        create_toolbar.props.page = gtk.Toolbar()
        create_toolbar.props.icon_name = 'magicpen'
        create_toolbar.props.label = _('Create')
        toolbar_box.toolbar.insert(create_toolbar, -1)
        self._insert_create_tools(create_toolbar)

        self._insert_stop_play_button(toolbar_box.toolbar)

        separator = gtk.SeparatorToolItem()
        toolbar_box.toolbar.insert(separator, -1)
        separator.show()

        clear_trace = ToolButton("clear-trace")
        clear_trace.set_tooltip(_("Clear Trace Marks"))
        clear_trace.set_accelerator(_("<ctrl>x"))
        clear_trace.connect("clicked", self.clear_trace_cb)
        clear_trace.set_sensitive(False)
        toolbar_box.toolbar.insert(clear_trace, -1)
        clear_trace.show()
        self.clear_trace = clear_trace

        self._insert_clear_all_button(toolbar_box.toolbar)

        separator = gtk.SeparatorToolItem()
        separator.props.draw = False
        separator.set_size_request(0, -1)
        separator.set_expand(True)
        toolbar_box.toolbar.insert(separator, -1)
        separator.show()

        stop = StopButton(self)
        toolbar_box.toolbar.insert(stop, -1)
        stop.show()

        separator = gtk.SeparatorToolItem()
        activity_button.props.page.insert(separator, -1)
        separator.show()

        export_json = ToolButton("save-as-json")
        export_json.set_tooltip(_("Export tracked objects to journal"))
        export_json.connect('clicked', self._export_json_cb)
        activity_button.props.page.insert(export_json, -1)
        export_json.show()

        export_csv = ToolButton("save-as-csv")
        export_csv.set_tooltip(_("Export tracked objects to journal"))
        export_csv.connect('clicked', self._export_csv_cb)
        activity_button.props.page.insert(export_csv, -1)
        export_csv.show()

        self.set_toolbar_box(toolbar_box)
        toolbar_box.show_all()
        create_toolbar.set_expanded(True)
        return toolbar_box

    def can_close(self):
        self.preview = self.get_preview()
        self.game.loop = False
        return True

    def _insert_stop_play_button(self, toolbar):
        self.stop_play_state = True
        self.stop_play = ToolButton('media-playback-stop')
        self.stop_play.set_tooltip(_("Stop"))
        self.stop_play.set_accelerator(_('<ctrl>space'))
        self.stop_play.connect('clicked', self.stop_play_cb)
        toolbar.insert(self.stop_play, -1)
        self.stop_play.show()

    def _insert_clear_all_button(self, toolbar):
        self.clear_all = ToolButton('clear_all')
        self.clear_all.set_tooltip(_("Erase All"))
        self.clear_all.set_accelerator(_('<ctrl>a'))
        self.clear_all.connect('clicked', self.clear_all_cb)
        toolbar.insert(self.clear_all, -1)
        self.clear_all.set_sensitive(False)
        self.clear_all.show()

    def _insert_create_tools(self, create_toolbar):

        def _insert_item(toolbar, item, pos=-1):
            if hasattr(toolbar, 'insert'):
                toolbar.insert(item, pos)
            else:
                toolbar.props.page.insert(item, pos)

        # Make + add the component buttons
        self.radioList = {}
        firstButton = None
        for c in tools.allTools:
            button = RadioToolButton(named_icon=c.icon)
            if firstButton:
                button.set_group(firstButton)
            else:
                button.set_group(None)
                firstButton = button

            if c.name == tools.EraseAllTool.name:
                # Add a separator - Erase all tool is a dangerous tool
                separator = gtk.SeparatorToolItem()
                _insert_item(create_toolbar, separator, -1)
                separator.show()

            button.set_tooltip(c.toolTip)
            button.set_accelerator(c.toolAccelerator)
            button.connect('clicked', self.radioClicked)
            _insert_item(create_toolbar, button, -1)
            button.show()
            self.radioList[button] = c.name

    def clear_trace_alert_cb(self, alert, response):
        self.remove_alert(alert)
        if response is gtk.RESPONSE_OK:
            self.game.full_pos_list = [[] for _ in self.game.full_pos_list]
            self.game.tracked_bodies = 0

    def clear_trace_cb(self, button):
        clear_trace_alert = ConfirmationAlert()
        clear_trace_alert.props.title = _('Are You Sure?')
        clear_trace_alert.props.msg = \
            _('All trace points will be erased. This cannot be undone!')
        clear_trace_alert.connect('response', self.clear_trace_alert_cb)
        self.add_alert(clear_trace_alert)

    def stop_play_cb(self, button):
        pygame.event.post(pygame.event.Event(pygame.USEREVENT,
                                             action="stop_start_toggle"))
        self.stop_play_state = not self.stop_play_state

        if self.stop_play_state:
            self.stop_play.set_icon('media-playback-stop')
            self.stop_play.set_tooltip(_("Stop"))
        else:
            self.stop_play.set_icon('media-playback-start')
            self.stop_play.set_tooltip(_("Start"))

    def clear_all_cb(self, button):
        def clear_all_alert_cb(alert, response_id):
            self.remove_alert(alert)
            if response_id is gtk.RESPONSE_OK:
                pygame.event.post(pygame.event.Event(pygame.USEREVENT,
                                                     action="clear_all"))

        clear_all_alert = ConfirmationAlert()
        clear_all_alert.props.title = _('Are You Sure?')
        clear_all_alert.props.msg = \
             _('All your work will be discarded. This cannot be undone!')
        clear_all_alert.connect('response', clear_all_alert_cb)
        self.add_alert(clear_all_alert)

    def radioClicked(self, button):
        pygame.event.post(pygame.event.Event(pygame.USEREVENT,
                                             action=self.radioList[button]))

    def _focus_event(self, event, data=None):
        """ Send focus events to pygame to allow it to idle when in
        background. """
        if not self.game.pygame_started:
            logging.debug('focus_event: pygame not yet initialized')
            return
        if data.state == gtk.gdk.VISIBILITY_FULLY_OBSCURED:
            pygame.event.post(pygame.event.Event(pygame.USEREVENT,
                                                 action="focus_out"))
        else:
            self.game.show_fake_cursor = True
            pygame.event.post(pygame.event.Event(pygame.USEREVENT,
                                                 action="focus_in"))

    def _export_json_cb(self, button):
        jobject = datastore.create()
        jobject.metadata['title'] = _("Physics export")
        jobject.metadata['mime_type'] = "text/plain"

        tmp_dir = os.path.join(self.get_activity_root(), 'instance')
        fd, file_path = tempfile.mkstemp(dir=tmp_dir)
        os.close(fd)

        data = self.game.full_pos_list
        jsonfile = open(file_path, "wb")
        jsonfile.write(json.dumps(data))
        jsonfile.close()

        jobject.set_file_path(os.path.abspath(jsonfile.name))
        datastore.write(jobject)

    def _export_csv_cb(self, button):
        jobject = datastore.create()
        jobject.metadata['title'] = _("Physics export")
        jobject.metadata['mime_type'] = "text/csv"

        tmp_dir = os.path.join(self.get_activity_root(), 'instance')
        fd, file_path = tempfile.mkstemp(dir=tmp_dir)
        os.close(fd)

        data = self.game.full_pos_list
        csvfile = open(file_path, "wb")
        writer = csv.writer(csvfile)
        writer.writerows(data)
        csvfile.close()

        jobject.set_file_path(os.path.abspath(csvfile.name))
        datastore.write(jobject)

    def _window_event(self, window, event):
        """ Send focus out event to pygame when switching to a desktop
        view. """
        if event.changed_mask & gtk.gdk.WINDOW_STATE_ICONIFIED:
            pygame.event.post(pygame.event.Event(pygame.USEREVENT,
                                                 action="focus_out"))