diff anagram/guisupport/action.cpp @ 0:13d2b8934445

Import AnaGram (near-)release tree into Mercurial.
author David A. Holland
date Sat, 22 Dec 2007 17:52:45 -0500
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/anagram/guisupport/action.cpp	Sat Dec 22 17:52:45 2007 -0500
@@ -0,0 +1,58 @@
+/*
+ * AnaGram, A System for Syntax Directed Programming
+ * Copyright 1997-2002 Parsifal Software. All Rights Reserved.
+ * See the file COPYING for license and usage terms.
+ *
+ * action.cpp
+ */
+
+#include "action.h"
+
+//#define INCLUDE_LOGGING
+#include "log.h"
+
+
+int AgAction::running = 0;
+
+AgStack<AgAction> AgAction::startupStack;
+
+AgAction actionObject(void (*function)()) {
+  return AgSimpleAction(function);
+}
+
+void AgAction::startup() {
+  LOGSECTION("AgAction::startup");
+  running = 1;
+  int n = startupStack.size();
+  LOGV(n);
+  int i;
+  for (i = 0; i < n; i++) {
+    startupStack[i].perform();
+  }
+  startupStack.discardData();
+}
+
+void AgAction::performDeferred() const {
+  if (!running) {
+    startupStack.push(*this);
+    return;
+  }
+  LOGSECTION_OFF("AgAction::performDeferred");
+  LOGV((int) kernel);
+  if (kernel == 0) {
+    return;
+  }
+  kernel->lock();
+  AgActionEnqueueInGui(kernel);
+}
+
+void AgActionDispatchFromGui(AgAction::Kernel *kernel) {
+  kernel->perform();
+  if (kernel->unlock()) {
+    delete kernel;
+  }
+}
+
+void defer(void (*function)()) {
+  actionObject(function).performDeferred();
+}