Solver: Fix for windows version.

src/Solver/ASolver.py

@@ -2,7 +2,12 @@
 
 import os
 
-from signal import SIGTERM, SIGSTOP, SIGCONT
+try:
+    from signal import SIGTERM, SIGSTOP, SIGCONT
+    _signal = True
+except:
+    _signal = False
+
 from enum import Enum
 
 from Model.Except import NotImplementedMethodeError
@@ -206,21 +211,26 @@ class AbstractSolver(object):
         if process is not None:
             self._process = process
 
-        if self._status == STATUS.PAUSED:
-            os.kill(self._process.pid(), SIGCONT)
-            self._status = STATUS.RUNNING
+        if _signal:
+            if self._status == STATUS.PAUSED:
+                os.kill(self._process.pid(), SIGCONT)
+                self._status = STATUS.RUNNING
+            else:
+                self.run_solver()
         else:
             self.run_solver()
 
         return True
 
     def pause(self):
-        if self._process is None:
-            return False
+        if _signal:
+            if self._process is None:
+                return False
 
-        os.kill(self._process.pid(), SIGSTOP)
-        self._status = STATUS.PAUSED
-        return True
+            os.kill(self._process.pid(), SIGSTOP)
+            self._status = STATUS.PAUSED
+            return True
+        return False
 
     def stop(self):
         if self._process is None:

src/View/RunSolver/Window.py

@@ -29,6 +29,12 @@ from PyQt5.QtWidgets import (
 
 from View.RunSolver.Log.Window import SolverLogFileWindow
 
+try:
+    from signal import SIGTERM, SIGSTOP, SIGCONT
+    _signal = True
+except:
+    _signal = False
+
 _translate = QCoreApplication.translate
 
 class SelectSolverWindow(ASubWindow, ListedSubWindow):
@@ -126,7 +132,11 @@ class SolverLogWindow(ASubMainWindow, ListedSubWindow):
 
     def setup_action(self):
         self.find(QAction, "action_start").setEnabled(False)
-        self.find(QAction, "action_pause").setEnabled(True)
+        if _signal:
+            self.find(QAction, "action_pause").setEnabled(True)
+        else:
+            self.find(QAction, "action_pause").setEnabled(False)
+
         self.find(QAction, "action_stop").setEnabled(True)
         self.find(QAction, "action_log_file").setEnabled(False)
 
@@ -176,7 +186,10 @@ class SolverLogWindow(ASubMainWindow, ListedSubWindow):
         self._solver.start(self._process)
 
         self.find(QAction, "action_start").setEnabled(False)
-        self.find(QAction, "action_pause").setEnabled(True)
+        if _signal:
+            self.find(QAction, "action_pause").setEnabled(True)
+        else:
+            self.find(QAction, "action_pause").setEnabled(False)
         self.find(QAction, "action_stop").setEnabled(True)
         self.find(QAction, "action_log_file").setEnabled(False)