ENH: Allow working with empty build directories.

Make output window a bit smaller compared to cache view.
      Prompt on X'ing window as well as hitting cancel.
      Color new cache values red, and put them first.

Source/QtDialog/CMakeSetupDialog.cxx

@@ -24,6 +24,7 @@
 #include <QStatusBar>
 #include <QToolButton>
 #include <QDialogButtonBox>
+#include <QCloseEvent>
 
 #include "QCMake.h"
 #include "QCMakeCacheView.h"
@@ -50,6 +51,8 @@ CMakeSetupDialog::CMakeSetupDialog()
   this->resize(700, 500);
   QWidget* cont = new QWidget(this);
   this->setupUi(cont);
+  this->Splitter->setStretchFactor(0, 2);
+  this->Splitter->setStretchFactor(1, 1);
   this->setCentralWidget(cont);
   this->ProgressBar = new QProgressBar();
   this->ProgressBar->setRange(0,100);
@@ -87,7 +90,7 @@ void CMakeSetupDialog::initialize()
                    this, SLOT(doOk()));
   
   QObject::connect(this->CancelButton, SIGNAL(clicked(bool)),
-                   this, SLOT(doCancel()));
+                   this, SLOT(close()));
   
   QObject::connect(this->BrowseSourceDirectoryButton, SIGNAL(clicked(bool)),
                    this, SLOT(doSourceBrowse()));
@@ -96,6 +99,8 @@ void CMakeSetupDialog::initialize()
   
   QObject::connect(this->BinaryDirectory, SIGNAL(editTextChanged(QString)),
                    this->CMakeThread->CMakeInstance, SLOT(setBinaryDirectory(QString)));
+  QObject::connect(this->SourceDirectory, SIGNAL(textChanged(QString)),
+                   this->CMakeThread->CMakeInstance, SLOT(setSourceDirectory(QString)));
 
   QObject::connect(this->CMakeThread->CMakeInstance, SIGNAL(sourceDirChanged(QString)),
                    this, SLOT(updateSourceDirectory(QString)));
@@ -127,6 +132,21 @@ CMakeSetupDialog::~CMakeSetupDialog()
   
 void CMakeSetupDialog::doConfigure()
 {
+  QDir dir(this->BinaryDirectory->currentText());
+  if(!dir.exists())
+    {
+    QString message = tr("Build directory does not exist, should I create it?\n\n"
+                         "Directory: ");
+    message += this->BinaryDirectory->currentText();
+    QString title = tr("Create Directory");
+    QMessageBox::StandardButton btn =
+      QMessageBox::information(this, title, message, QMessageBox::Yes | QMessageBox::No);
+    if(btn == QMessageBox::No)
+      {
+      return;
+      }
+    dir.mkpath(".");
+    }
   this->InterruptButton->setEnabled(true);
   this->setEnabledState(false);
   this->Output->clear();
@@ -179,7 +199,7 @@ void CMakeSetupDialog::doOk()
     "generate", Qt::QueuedConnection);
 }
   
-void CMakeSetupDialog::doCancel()
+void CMakeSetupDialog::closeEvent(QCloseEvent* e)
 {
   if(this->CacheValues->cacheModel()->isDirty())
     {
@@ -187,14 +207,12 @@ void CMakeSetupDialog::doCancel()
                     "are you sure you want to exit?");
     QString title = tr("Confirm Exit");
     QMessageBox::StandardButton btn =
-      QMessageBox::critical(this, title, message, QMessageBox::Ok | QMessageBox::Cancel);
+      QMessageBox::critical(this, title, message, QMessageBox::Yes | QMessageBox::No);
-    if(btn == QMessageBox::Cancel)
+    if(btn == QMessageBox::No)
       {
-      return;
+      e->ignore();
       }
     }
-
-  QApplication::quit();
 }
 
 void CMakeSetupDialog::doHelp()
@@ -242,13 +260,16 @@ void CMakeSetupDialog::doSourceBrowse()
     tr("Enter Path to Source"), this->SourceDirectory->text());
   if(!dir.isEmpty())
     {
-    this->updateSourceDirectory(dir);
+    this->SourceDirectory->setText(dir);
     }
 }
 
 void CMakeSetupDialog::updateSourceDirectory(const QString& dir)
 {
-  this->SourceDirectory->setText(dir);
+  if(this->SourceDirectory->text() != dir)
+    {
+    this->SourceDirectory->setText(dir);
+    }
 }
 
 void CMakeSetupDialog::doBinaryBrowse()
@@ -265,6 +286,7 @@ void CMakeSetupDialog::setBinaryDirectory(const QString& dir)
 {
   if(dir != this->BinaryDirectory->currentText())
     {
+    this->CacheValues->cacheModel()->setProperties(QCMakeCachePropertyList());
     this->Output->clear();
     this->BinaryDirectory->setEditText(dir);
     }

Source/QtDialog/CMakeSetupDialog.h

@@ -36,7 +36,6 @@ protected slots:
   void initialize();
   void doConfigure();
   void doOk();
-  void doCancel();
   void doHelp();
   void doInterrupt();
   void finishConfigure(int error);
@@ -51,6 +50,7 @@ protected slots:
   void setEnabledState(bool);
 
 protected:
+  void closeEvent(QCloseEvent*);
 
   QCMakeThread* CMakeThread;
   QProgressBar* ProgressBar;

Source/QtDialog/CMakeSetupDialog.ui

@@ -74,7 +74,7 @@
        </layout>
       </item>
       <item>
-       <widget class="QSplitter" name="splitter" >
+       <widget class="QSplitter" name="Splitter" >
         <property name="orientation" >
          <enum>Qt::Vertical</enum>
         </property>

Source/QtDialog/QCMake.cxx

@@ -61,21 +61,27 @@ void QCMake::loadCache(const QString& dir)
 
 void QCMake::setSourceDirectory(const QString& dir)
 {
-  this->SourceDirectory = dir;
+  if(this->SourceDirectory != dir)
-  emit this->sourceDirChanged(dir);
+    {
+    this->SourceDirectory = dir;
+    emit this->sourceDirChanged(dir);
+    }
 }
 
 void QCMake::setBinaryDirectory(const QString& dir)
 {
-  cmCacheManager *cachem = this->CMakeInstance->GetCacheManager();
+  if(this->BinaryDirectory != dir)
-  this->BinaryDirectory = dir;
-  this->CMakeInstance->GetCacheManager()->LoadCache(dir.toLocal8Bit().data());
-  QCMakeCachePropertyList props = this->properties();
-  emit this->propertiesChanged(props);
-  cmCacheManager::CacheIterator itm = cachem->NewIterator();
-  if ( itm.Find("CMAKE_HOME_DIRECTORY"))
     {
-    setSourceDirectory(itm.GetValue());
+    cmCacheManager *cachem = this->CMakeInstance->GetCacheManager();
+    this->BinaryDirectory = dir;
+    this->CMakeInstance->GetCacheManager()->LoadCache(dir.toLocal8Bit().data());
+    QCMakeCachePropertyList props = this->properties();
+    emit this->propertiesChanged(props);
+    cmCacheManager::CacheIterator itm = cachem->NewIterator();
+    if ( itm.Find("CMAKE_HOME_DIRECTORY"))
+      {
+      setSourceDirectory(itm.GetValue());
+      }
     }
 }
 

Source/QtDialog/QCMake.h

@@ -40,6 +40,8 @@ struct QCMakeCacheProperty
   QString Help;
   PropertyType Type;
   bool Advanced;
+  bool operator==(const QCMakeCacheProperty& other) const { return this->Key == other.Key; }
+  bool operator<(const QCMakeCacheProperty& other) const { return this->Key < other.Key; }
 };
 
 // make types usable with QVariant

Source/QtDialog/QCMakeCacheView.cxx

@@ -88,7 +88,7 @@ QModelIndex QCMakeCacheView::moveCursor(CursorAction act,
 }
 
 QCMakeCacheModel::QCMakeCacheModel(QObject* p)
-  : QAbstractTableModel(p), IsDirty(false)
+  : QAbstractTableModel(p), NewCount(0), IsDirty(false)
 {
 }
 
@@ -101,9 +101,28 @@ bool QCMakeCacheModel::isDirty() const
   return this->IsDirty;
 }
 
+static uint qHash(const QCMakeCacheProperty& p)
+{
+  return qHash(p.Key);
+}
+
 void QCMakeCacheModel::setProperties(const QCMakeCachePropertyList& props)
 {
-  this->Properties = props;
+  QSet<QCMakeCacheProperty> newProps = props.toSet();
+  QSet<QCMakeCacheProperty> oldProps = this->Properties.toSet();
+  
+  oldProps.intersect(newProps);
+  newProps.subtract(oldProps);
+
+  this->NewCount = newProps.count();
+  this->Properties.clear();
+
+  this->Properties = newProps.toList();
+  qSort(this->Properties);
+  QCMakeCachePropertyList tmp = oldProps.toList();
+  qSort(tmp);
+  this->Properties += tmp;
+  
   this->reset();
   this->IsDirty = false;
 }
@@ -155,6 +174,10 @@ QVariant QCMakeCacheModel::data (const QModelIndex& index, int role) const
     {
     return this->Properties[index.row()].Advanced;
     }
+  else if(role == Qt::BackgroundRole && index.row()+1 <= this->NewCount)
+    {
+    return QBrush(QColor(255,100,100));
+    }
   return QVariant();
 }
 

Source/QtDialog/QCMakeCacheView.h

@@ -73,6 +73,7 @@ public:
 
 protected:
   QCMakeCachePropertyList Properties;
+  int NewCount;
   bool IsDirty;
 };