Fixed issue #62.

--HG--
branch : develop

src/mainwindow.cpp

@@ -612,7 +612,7 @@ void MainWindow::closeEvent(QCloseEvent *event)
 {
     if (changeInFile == true)
     {
-        QMessageBox msgBox;
+        QMessageBox msgBox(this);
         msgBox.setText(tr("The pattern has been modified."));
         msgBox.setInformativeText(tr("Do you want to save your changes?"));
         msgBox.setStandardButtons(QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);

src/tools/vabstracttool.cpp

@@ -210,6 +210,16 @@ void VAbstractTool::DeleteTool(QGraphicsItem *tool)
 {
     if (_referens <= 1)
     {
+        QMessageBox msgBox;
+        msgBox.setText(tr("Confirm the deletion."));
+        msgBox.setInformativeText(tr("Do you really want delete?"));
+        msgBox.setStandardButtons(QMessageBox::Ok | QMessageBox::Cancel);
+        msgBox.setDefaultButton(QMessageBox::Ok);
+        msgBox.setIcon(QMessageBox::Question);
+        if (msgBox.exec() == QMessageBox::Cancel)
+        {
+            return;
+        }
         //remove from xml file
         QDomElement domElement = doc->elementById(QString().setNum(id));
         if (domElement.isElement())

src/tools/vabstracttool.h

@@ -31,6 +31,7 @@
 
 #include "vdatatool.h"
 #include "../xml/vdomdocument.h"
+#include <QMessageBox>
 
 /**
  * @brief The VAbstractTool abstract class for all tools.