Move all GUI-related stuff from OCREngine to GUIProxy.

pixelocr/gui/guiproxy.py

@@ -0,0 +1,55 @@
+# Copyright (C) 2014  Andrey Golovizin
+#
+# 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 queue import Queue
+
+from PyQt4.QtCore import (
+    signal,
+    slot,
+    QObject,
+)
+
+from PyQt4.QtGui import (
+    qApp,
+)
+
+from ..ui import BaseUI
+from ..page import Page, Glyph
+
+
+class GUIProxy(QObject, BaseUI):
+    unknownGlyph = signal([Glyph, bool, bool])
+    pageChanged = signal([Page])
+
+    def __init__(self):
+        super().__init__()
+        self.help_queue = Queue()
+
+    def turn_page(self, page):
+        self.pageChanged.emit(page)
+
+    def process_events(self):
+        qApp.processEvents()
+
+    def ask_for_help(self, unknown_glyph):
+        self.unknownGlyph.emit(unknown_glyph, self.last_style.bold, self.last_style.italic)
+        return self.receive_help()
+
+    def give_help(self, *args):
+        self.help_queue.put(args)
+
+    def receive_help(self):
+        return self.help_queue.get()