Add scroll area for large widget display.

ground.cpp

@@ -80,29 +80,26 @@ Ground::Ground(QWidget *parent) :
     retranslate();
 
     //-----Example-----
-//    QPolygonF debugBorder, debugBarracks;
-//    //Set a default border.
+//    //Border.
 //    debugBorder << QPointF(30, 60) << QPointF(120, 20)
 //                << QPointF(400, 45) << QPointF(415, 280)
 //                << QPointF(180, 340) << QPointF(15, 210);
-//    setBorder(debugBorder);
 
-//    //Set a default barracks.
+//    //Barracks.
 //    debugBarracks << QPointF(200, 200) << QPointF(200, 275)
 //                  << QPointF(275, 275) << QPointF(275, 200);
-//    setBarracks(debugBarracks);
 
-//    //Set some robots.
-//    addRobot(new Robot(203, 203));
-//    addRobot(new Robot(210, 210));
-//    addRobot(new Robot(210, 220));
-//    addRobot(new Robot(203, 210));
-//    addRobot(new Robot(210, 203));
-//    addRobot(new Robot(203, 250));
-//    addRobot(new Robot(209, 250));
-//    addRobot(new Robot(250, 210));
-//    addRobot(new Robot(203, 207));
-//    addRobot(new Robot(204, 207));
+//    //Robots.
+//    Robot(203, 203));
+//    Robot(210, 210));
+//    Robot(210, 220));
+//    Robot(203, 210));
+//    Robot(210, 203));
+//    Robot(203, 250));
+//    Robot(209, 250));
+//    Robot(250, 210));
+//    Robot(203, 207));
+//    Robot(204, 207));
 }
 
 Ground::~Ground()
@@ -413,6 +410,11 @@ void Ground::clearGroundData()
     m_robotList.clear();
     m_robotInitialAngle.clear();
     m_robotInitialPosition.clear();
+
+    //Hack way to repaint all the things. WTF!
+    hide();
+    show();
+
     //Resize ground.
     setFixedSize(0,0);
 }

mainwindow.cpp

@@ -34,16 +34,13 @@ MainWindow::MainWindow(QWidget *parent) :
     m_robotManagement(new RobotManagement(this)),
     m_groundGenerator(new GenerateGround(this))
 {
-    //A hack, using box layout to make the ground the center.
-    QWidget *container=new QWidget(this);
-    //Set the central widget.
-    setCentralWidget(container);
-    QBoxLayout *mainLayout=new QBoxLayout(QBoxLayout::LeftToRight,
-                                          container);
-    container->setLayout(mainLayout);
-    //Add ground and panel to layout.
-    mainLayout->addWidget(m_ground, 1, Qt::AlignCenter);
-    mainLayout->addWidget(m_panel);
+    //Set the minimum size.
+    setMinimumSize(500, 309);
+    //Initial the scroll area.
+    QScrollArea *groundArea=new QScrollArea(this);
+    setCentralWidget(groundArea);
+    groundArea->setAlignment(Qt::AlignCenter);
+    groundArea->setWidget(m_ground);
 
     //Set the ground generator.
     m_ground->setGenerator(m_groundGenerator);

robotaddwidget.cpp

@@ -83,8 +83,8 @@ RobotAddWidget::RobotAddWidget(QWidget *parent) :
                                             mainLayout->widget());
     buttonLayout->setSpacing(2);
     buttonLayout->addWidget(m_okay);
-    buttonLayout->addWidget(m_cancel);
     m_cancel->setShortcut(QKeySequence(Qt::Key_Escape));
+    buttonLayout->addWidget(m_cancel);
     buttonLayout->addStretch();
     mainLayout->addLayout(buttonLayout);
 
@@ -107,6 +107,18 @@ void RobotAddWidget::updateXAndYRange(const int &minX, const int &minY,
     m_yData->setRange(minY, maxY);
 }
 
+void RobotAddWidget::enabledWidget()
+{
+    m_okay->setDefault(true);
+    setEnabled(true);
+}
+
+void RobotAddWidget::disabledWidget()
+{
+    m_okay->setDefault(false);
+    setEnabled(false);
+}
+
 void RobotAddWidget::showEvent(QShowEvent *event)
 {
     QWidget::showEvent(event);
@@ -116,6 +128,8 @@ void RobotAddWidget::showEvent(QShowEvent *event)
     m_angleData->setValue(0);
     //Update the preview.
     onActionParameterChange();
+    //Set the focus to x data edit.
+    m_xData->setFocus();
 }
 
 void RobotAddWidget::retranslate()

robotaddwidget.h

@@ -51,6 +51,18 @@ class RobotAddWidget : public QWidget
     void updateXAndYRange(const int &minX, const int &minY,
                           const int &maxX, const int &maxY);
 
+    /*!
+     * \brief Call this function will bind the default button and enabled this
+     * widget.
+     */
+    void enabledWidget();
+
+    /*!
+     * \brief Call this function will unbind the default button and disable this
+     * widget.
+     */
+    void disabledWidget();
+
 signals:
     /*!
      * \brief When this signal is emitted, the robot management dialog will be

robotmanagement.cpp

@@ -110,7 +110,15 @@ GroundBase *RobotManagement::ground()
 
 void RobotManagement::addRobot()
 {
+    //Check the ground first. If it don't have a border, or barracks, we don't
+    //need to popup this dialog.
+    if(m_ground->border().isEmpty())
+    {
+        return;
+    }
     //Show the add robot widget.
+    m_robotManagement->disabledWidget();
+    m_robotAdd->enabledWidget();
     m_stackLayout->setCurrentWidget(m_robotAdd);
     //Make the preview show the preview robot.
     m_groundPreview->setShowPreviewPoint(true);
@@ -128,9 +136,17 @@ void RobotManagement::addRobot()
 
 void RobotManagement::manageRobot()
 {
+    //Check the ground first. If it don't have a border, or barracks, we don't
+    //need to popup this dialog.
+    if(m_ground->border().isEmpty())
+    {
+        return;
+    }
     //When you manage the robot, we must reset the ground.
     m_ground->reset();
-    //Show the manage widget.
+    //Show and enabled the manage widget, disabled the add widget.
+    m_robotAdd->disabledWidget();
+    m_robotManagement->enabledWidget();
     m_stackLayout->setCurrentWidget(m_robotManagement);
     //Hide the preview robot.
     m_groundPreview->setShowPreviewPoint(false);
@@ -177,5 +193,6 @@ void RobotManagement::onActionAddRobot(const QPointF &position,
     //Or else, display an error information.
     QMessageBox::warning(this,
                          tr("Add Robot Failed"),
-                         tr("The robot is not in the barracks, you cannot add this robot"));
+                         tr("The robot is not in the barracks, or the position has already got a robot.\n"
+                            "Please change the position of the robot."));
 }

robotmanagewidget.cpp

@@ -89,8 +89,8 @@ RobotManageWidget::RobotManageWidget(QWidget *parent) :
                                             mainLayout->widget());
     buttonLayout->setSpacing(2);
     buttonLayout->addWidget(m_okay);
-    buttonLayout->addWidget(m_cancel);
     m_cancel->setShortcut(QKeySequence(Qt::Key_Escape));
+    buttonLayout->addWidget(m_cancel);
     buttonLayout->addStretch();
     mainLayout->addLayout(buttonLayout);
 
@@ -254,6 +254,18 @@ QList<qreal> RobotManageWidget::angleList()
     return angleList;
 }
 
+void RobotManageWidget::enabledWidget()
+{
+    m_okay->setDefault(true);
+    setEnabled(true);
+}
+
+void RobotManageWidget::disabledWidget()
+{
+    m_okay->setDefault(false);
+    setEnabled(false);
+}
+
 void RobotManageWidget::setGround(GroundBase *ground)
 {
     //Save the new ground.

robotmanagewidget.h

@@ -65,6 +65,18 @@ class RobotManageWidget : public QWidget
      */
     QList<qreal> angleList();
 
+    /*!
+     * \brief Call this function will bind the default button and enabled this
+     * widget.
+     */
+    void enabledWidget();
+
+    /*!
+     * \brief Call this function will unbind the default button and disable this
+     * widget.
+     */
+    void disabledWidget();
+
 signals:
     /*!
      * \brief When this signal is emitted, the robot management dialog will be