1 files changed, 57 insertions, 0 deletions
diff --git a/chalk/core/kis_thread.h b/chalk/core/kis_thread.h
new file mode 100644
index 00000000..61feda24
--- /dev/null
+++ b/chalk/core/kis_thread.h
@@ -0,0 +1,57 @@
+/*
+ *  copyright (c) 2005 Boudewijn Rempt
+ *
+ *  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 2 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, write to the free software
+ *  foundation, inc., 675 mass ave, cambridge, ma 02139, usa.
+ */
+
+#ifndef KIS_THREAD_
+#define KIS_THREAD_
+
+#include <tqthread.h>
+#include <ksharedptr.h>
+
+/**
+ * A KisThread is a TQThread that can be set in the canceled state.
+ * Lengthy operations initiated in run() should regularly read the
+ * canceled state and stop when it's set to true
+ */
+class KisThread : public TQThread {
+    
+public:
+
+    /**
+     * Create a new KisThread with the canceled state set to false
+     */
+    KisThread() : TQThread(), m_canceled(false) {};
+
+    /**
+     * Request the thread to cancel at the first opportunity. Note
+     * that the owner of the thread is responsible for restoring the
+     * previous state of paint devices etc, the thread itself just stops
+     * as soon as possible.
+     */
+    virtual void cancel() { m_canceled = true; }
+    virtual bool isCanceled() { return m_canceled; }
+
+    void runDirectly() { run(); }
+    
+protected:
+    
+    bool m_canceled;
+
+};
+
+
+#endif