ENH: allow cancel and display of progress during cpu intensive configure steps

Source/MFCDialog/CMakeSetupDialog.cpp

@@ -117,13 +117,41 @@ void updateProgress(const char *msg, float prog, void *cd)
     sprintf(tmp,"%s",msg);    
     }
   CMakeSetupDialog *self = (CMakeSetupDialog *)cd;
-  self->SetDlgItemText(IDC_PROGRESS, tmp);
+  self->SetDlgItemText(IDC_PROGRESS, tmp); 
+  CWnd* cancel = self->GetDlgItem(IDCANCEL);
+  //
+  // Retrieve and dispatch any waiting messages.
+  //
+  MSG wmsg;
+  while (::PeekMessage (&wmsg, NULL, 0, 0, PM_REMOVE))
+    {
+    switch(wmsg.message)
+      {
+      case WM_LBUTTONDOWN:
+      case WM_LBUTTONUP:
+      case WM_LBUTTONDBLCLK:
+      {
+      if(wmsg.hwnd == cancel->m_hWnd)
+        {
+        ::DispatchMessage(&wmsg);
+        }
+      }
+      break;
+      case WM_COMMAND:
+      case WM_SETCURSOR:
+      case WM_PAINT:
+        ::DispatchMessage(&wmsg);
+      break;
+      }
+    }
 }
 
 CMakeSetupDialog::CMakeSetupDialog(const CMakeCommandLineInfo& cmdInfo,
                                    CWnd* pParent /*=NULL*/)
   : CDialog(CMakeSetupDialog::IDD, pParent)
-{
+{ 
+  m_Cursor = LoadCursor(NULL, IDC_ARROW);
+  m_RunningConfigure = false;
   cmSystemTools::SetRunCommandHideConsole(true);
   cmSystemTools::SetErrorCallback(MFCMessageCallback);
   m_RegistryKey  = "Software\\Kitware\\CMakeSetup\\Settings\\StartPath";
@@ -208,7 +236,6 @@ BEGIN_MESSAGE_MAP(CMakeSetupDialog, CDialog)
   ON_WM_SYSCOMMAND()
   ON_WM_PAINT()
   ON_WM_QUERYDRAGICON()
-  ON_WM_DROPFILES()
   ON_BN_CLICKED(IDC_BUTTON2, OnBrowseWhereSource)
   ON_BN_CLICKED(IDC_BuildProjects, OnConfigure)
   ON_BN_CLICKED(IDC_BUTTON3, OnBrowseWhereBuild)
@@ -221,10 +248,12 @@ BEGIN_MESSAGE_MAP(CMakeSetupDialog, CDialog)
   ON_BN_CLICKED(IDC_OK, OnOk)
   ON_CBN_EDITCHANGE(IDC_Generator, OnEditchangeGenerator)
   ON_BN_CLICKED(IDC_HELP_BUTTON, OnHelpButton)
-  ON_BN_CLICKED(IDCANCEL, OnCancel)
   ON_BN_CLICKED(IDC_AdvancedValues, OnAdvancedValues)
   ON_BN_DOUBLECLICKED(IDC_AdvancedValues, OnDoubleclickedAdvancedValues)
-  //}}AFX_MSG_MAP
+  ON_WM_DROPFILES()
+  ON_BN_CLICKED(IDCANCEL, OnCancel)
+	ON_WM_SETCURSOR()
+	//}}AFX_MSG_MAP
 END_MESSAGE_MAP()
 
 /////////////////////////////////////////////////////////////////////////////
@@ -606,8 +635,10 @@ void CMakeSetupDialog::RunCMake(bool generateProjectFiles)
       }
     }
   // set the wait cursor
-  ::SetCursor(LoadCursor(NULL, IDC_WAIT));  
-
+  m_Cursor = LoadCursor(NULL, IDC_WAIT);
+  ::SetCursor(m_Cursor);
+  m_RunningConfigure = true;
+  
   // get all the info from the dialog
   this->UpdateData();
   // always save the current gui values to disk
@@ -649,8 +680,10 @@ void CMakeSetupDialog::RunCMake(bool generateProjectFiles)
   this->SaveToRegistry();
   // path is up-to-date now
   m_BuildPathChanged = false;
-  // put the cursor back
-  ::SetCursor(LoadCursor(NULL, IDC_ARROW));
+  // put the cursor back 
+  m_Cursor = LoadCursor(NULL, IDC_ARROW);
+  ::SetCursor(m_Cursor);
+  m_RunningConfigure = false;
   cmSystemTools::ResetErrorOccuredFlag();
 }
 
@@ -1054,6 +1087,17 @@ void CMakeSetupDialog::OnGetMinMaxInfo( MINMAXINFO FAR* lpMMI )
 
 void CMakeSetupDialog::OnCancel()
 {
+  if(m_RunningConfigure)
+    {
+     if(MessageBox("You are in the middle of a Configure.\n"
+                   "If you Cancel now the configure information will be lost.\n"
+                   "Are you sure you want to Cancel?", "Confirm Exit",
+                   MB_YESNO) == IDYES)
+       {
+       cmSystemTools::SetFatalErrorOccured();
+       }
+     return;
+    }
   if(m_CacheEntriesList.IsDirty())
     {
     if(MessageBox("You have changed options but not rebuilt, "
@@ -1395,3 +1439,9 @@ void CMakeSetupDialog::OnDropFiles(HDROP hDropInfo)
 
   DragFinish(hDropInfo);
 }
+
+BOOL CMakeSetupDialog::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message) 
+{
+   ::SetCursor(m_Cursor);
+   return true;
+}

Source/MFCDialog/CMakeSetupDialog.h

@@ -1,17 +1,17 @@
 /*=========================================================================
 
-  Program:   CMake - Cross-Platform Makefile Generator
-  Module:    $RCSfile$
-  Language:  C++
-  Date:      $Date$
-  Version:   $Revision$
+Program:   CMake - Cross-Platform Makefile Generator
+Module:    $RCSfile$
+Language:  C++
+Date:      $Date$
+Version:   $Revision$
 
-  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
-  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
 
-     This software is distributed WITHOUT ANY WARRANTY; without even 
-     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
-     PURPOSE.  See the above copyright notices for more information.
+This software is distributed WITHOUT ANY WARRANTY; without even 
+the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+PURPOSE.  See the above copyright notices for more information.
 
 =========================================================================*/
 // CMakeSetupDialogDlg.h : header file
@@ -59,7 +59,7 @@ protected:
   void RemoveAdvancedValues();
   // Dialog Data
   //{{AFX_DATA(CMakeSetupDialog)
-        enum { IDD = IDD_CMakeSetupDialog_DIALOG };
+  enum { IDD = IDD_CMakeSetupDialog_DIALOG };
   CButton       m_AdvancedValuesControl;
   CStatic       m_BuildForLabel;
   CButton       m_BrowseSource;
@@ -80,7 +80,7 @@ protected:
   CButton       m_Configure;
   CString m_GeneratorChoiceString;
   BOOL    m_AdvancedValues;
-        //}}AFX_DATA
+  //}}AFX_DATA
   
   // ClassWizard generated virtual function overrides
   //{{AFX_VIRTUAL(CMakeSetupDialog)
@@ -125,13 +125,16 @@ protected:
   afx_msg void OnAdvancedValues();
   afx_msg void OnDoubleclickedAdvancedValues();
   afx_msg void OnDropFiles(HDROP);
+  afx_msg BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message);
   //}}AFX_MSG
   DECLARE_MESSAGE_MAP()
     
-    int m_oldCX;
+  int m_oldCX;
   int m_oldCY;
   float m_deltaXRemainder;
   cmake *m_CMakeInstance;
+  HCURSOR m_Cursor;
+  bool m_RunningConfigure;
 };
 
 //{{AFX_INSERT_LOCATION}}