From ce77e62550c698202229cb42f5e3486bed235668 Mon Sep 17 00:00:00 2001
From: vsv <vitaly.smetannikov@opencascade.com>
Date: Tue, 29 Jul 2014 16:01:04 +0400
Subject: [PATCH] Wait cursor for solver operation

---
 src/Events/Events_LongOp.cpp             | 12 ++++++------
 src/Events/Events_LongOp.h               |  2 +-
 src/Model/Model_Update.cpp               |  4 ++--
 src/SketchSolver/SketchSolver_Solver.cpp |  3 +++
 src/XGUI/XGUI_Workshop.cpp               | 13 +++++++++++--
 src/XGUI/XGUI_Workshop.h                 |  2 ++
 6 files changed, 25 insertions(+), 11 deletions(-)

diff --git a/src/Events/Events_LongOp.cpp b/src/Events/Events_LongOp.cpp
index 7cc46c3cd..647d2bb4c 100644
--- a/src/Events/Events_LongOp.cpp
+++ b/src/Events/Events_LongOp.cpp
@@ -10,7 +10,7 @@
 std::map<void*, int> MY_SENDERS;
 
 Events_LongOp::Events_LongOp(void* theSender)
- : Events_Message(Events_LongOp::errorID(), theSender)
+ : Events_Message(Events_LongOp::eventID(), theSender)
 {
 }
 
@@ -18,7 +18,7 @@ Events_LongOp::~Events_LongOp()
 {
 }
 
-Events_ID Events_LongOp::errorID()
+Events_ID Events_LongOp::eventID()
 {
   Events_Loop* aLoop = Events_Loop::loop();
   return aLoop->eventByName("LongOperation");
@@ -33,8 +33,8 @@ void Events_LongOp::start(void* theSender)
     MY_SENDERS[theSender]++;
 
   if (toSend) {
-    Events_LongOp anError(theSender);
-    Events_Loop::loop()->send(anError);
+    Events_LongOp anEvent(theSender);
+    Events_Loop::loop()->send(anEvent);
   }
 }
 
@@ -46,8 +46,8 @@ void Events_LongOp::end(void* theSender)
     else MY_SENDERS[theSender] = aCount - 1;
   }
   if (MY_SENDERS.empty()) {
-    Events_LongOp anError(theSender);
-    Events_Loop::loop()->send(anError);
+    Events_LongOp anEvent(theSender);
+    Events_Loop::loop()->send(anEvent);
   }
 }
 
diff --git a/src/Events/Events_LongOp.h b/src/Events/Events_LongOp.h
index bc698ac50..dfb06cae4 100644
--- a/src/Events/Events_LongOp.h
+++ b/src/Events/Events_LongOp.h
@@ -17,7 +17,7 @@ class EVENTS_EXPORT Events_LongOp: public Events_Message
 public:
   virtual ~Events_LongOp();
   /// Returns the identifier of this event
-  static Events_ID errorID();
+  static Events_ID eventID();
   /// Starts the long operation
   static void start(void* theSender = 0);
   /// Stops the long operation
diff --git a/src/Model/Model_Update.cpp b/src/Model/Model_Update.cpp
index af5407caf..d8ccc3dd9 100644
--- a/src/Model/Model_Update.cpp
+++ b/src/Model/Model_Update.cpp
@@ -26,7 +26,7 @@ Model_Update::Model_Update()
 void Model_Update::processEvent(const Events_Message* theMessage)
 {
   if (isExecuted) return; // nothing to do: it is executed now
-  Events_LongOp::start(this);
+  //Events_LongOp::start(this);
   isExecuted = true;
   const ModelAPI_ObjectUpdatedMessage* aMsg = 
     dynamic_cast<const ModelAPI_ObjectUpdatedMessage*>(theMessage);
@@ -52,7 +52,7 @@ void Model_Update::processEvent(const Events_Message* theMessage)
   // flush
   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
   Events_Loop::loop()->flush(EVENT_DISP);
-  Events_LongOp::end(this);
+  //Events_LongOp::end(this);
   isExecuted = false;
 }
 
diff --git a/src/SketchSolver/SketchSolver_Solver.cpp b/src/SketchSolver/SketchSolver_Solver.cpp
index 40c76d1a7..b91d267f6 100644
--- a/src/SketchSolver/SketchSolver_Solver.cpp
+++ b/src/SketchSolver/SketchSolver_Solver.cpp
@@ -3,6 +3,7 @@
 // Author:  Artem ZHIDKOV
 
 #include "SketchSolver_Solver.h"
+#include <Events_LongOp.h>
 
 SketchSolver_Solver::SketchSolver_Solver()
 {
@@ -111,7 +112,9 @@ int SketchSolver_Solver::solve()
   if (myEquationsSystem.constraints <= 0)
     return SLVS_RESULT_EMPTY_SET;
 
+  Events_LongOp::start(this);
   Slvs_Solve(&myEquationsSystem, myGroupID);
+  Events_LongOp::end(this);
 
   return myEquationsSystem.result;
 }
diff --git a/src/XGUI/XGUI_Workshop.cpp b/src/XGUI/XGUI_Workshop.cpp
index 5cf57b2aa..fe055eff4 100644
--- a/src/XGUI/XGUI_Workshop.cpp
+++ b/src/XGUI/XGUI_Workshop.cpp
@@ -264,10 +264,11 @@ void XGUI_Workshop::processEvent(const Events_Message* theMessage)
     return;
   }
 
-  if (theMessage->eventID() == Events_Loop::loop()->eventByName("LongOperation")) {
+  if (theMessage->eventID() == Events_LongOp::eventID()) {
     if (Events_LongOp::isPerformed())
       QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
-    else
+      //QTimer::singleShot(10, this, SLOT(onStartWaiting()));
+    else 
       QApplication::restoreOverrideCursor();
     return;
   }
@@ -294,6 +295,14 @@ void XGUI_Workshop::processEvent(const Events_Message* theMessage)
   }
 }
 
+//******************************************************
+void XGUI_Workshop::onStartWaiting()
+{
+  if (Events_LongOp::isPerformed()) {
+    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
+  }
+}
+
 //******************************************************
 void XGUI_Workshop::onFeatureUpdatedMsg(const ModelAPI_ObjectUpdatedMessage* theMsg)
 {
diff --git a/src/XGUI/XGUI_Workshop.h b/src/XGUI/XGUI_Workshop.h
index 3fbe33e20..b857becb3 100644
--- a/src/XGUI/XGUI_Workshop.h
+++ b/src/XGUI/XGUI_Workshop.h
@@ -179,6 +179,8 @@ protected slots:
 
   void onWidgetValuesChanged();
 
+  void onStartWaiting();
+
 private:
   void initMenu();
 
-- 
2.39.2