SYNERGY-799 Implement add computer button

src/gui/src/ScreenSetupModel.cpp

@@ -141,3 +141,22 @@ bool ScreenSetupModel::dropMimeData(const QMimeData* data, Qt::DropAction action
     return true;
 }
 
+void ScreenSetupModel::addScreen(const Screen& newScreen)
+{
+    auto screenTest = std::find_if(m_Screens.begin(), m_Screens.end(),
+                                   [](const Screen& item) { return item.isNull(); });
+
+    if (screenTest != m_Screens.end())
+    {
+       (*screenTest) = newScreen;
+    }
+}
+
+bool ScreenSetupModel::isFull() const
+{
+   auto emptyScreen = std::find_if(m_Screens.cbegin(), m_Screens.cend(),
+                                   [](const Screen& item) { return item.isNull(); });
+
+   return (emptyScreen == m_Screens.cend());
+}
+

src/gui/src/ScreenSetupModel.h

@@ -51,6 +51,7 @@ class ScreenSetupModel : public QAbstractTableModel
         Qt::ItemFlags flags(const QModelIndex& index) const;
         QStringList mimeTypes() const;
         QMimeData* mimeData(const QModelIndexList& indexes) const;
+        bool isFull() const;
 
     protected:
         bool dropMimeData(const QMimeData* data, Qt::DropAction action, int row, int column, const QModelIndex& parent);
@@ -58,6 +59,7 @@ class ScreenSetupModel : public QAbstractTableModel
         Screen& screen(const QModelIndex& index) { return screen(index.column(), index.row()); }
         const Screen& screen(int column, int row) const { return m_Screens[row * m_NumColumns + column]; }
         Screen& screen(int column, int row) { return m_Screens[row * m_NumColumns + column]; }
+        void addScreen(const Screen& newScreen);
 
     private:
         ScreenList& m_Screens;

src/gui/src/ServerConfigDialog.cpp

@@ -16,6 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "ScreenSettingsDialog.h"
 #include "ServerConfigDialog.h"
 #include "ServerConfig.h"
 #include "HotkeyDialog.h"
@@ -79,6 +80,9 @@ ServerConfigDialog::ServerConfigDialog(QWidget* parent, ServerConfig& config) :
           }
        }
     }
+
+    m_pButtonAddComputer->setEnabled(!model().isFull());
+    connect(m_pTrashScreenWidget, SIGNAL(screenRemoved()), this, SLOT(onScreenRemoved()));
 }
 
 void ServerConfigDialog::showEvent(QShowEvent* event)
@@ -239,3 +243,21 @@ void ServerConfigDialog::on_m_pListActions_itemSelectionChanged()
     m_pButtonEditAction->setEnabled(!m_pListActions->selectedItems().isEmpty());
     m_pButtonRemoveAction->setEnabled(!m_pListActions->selectedItems().isEmpty());
 }
+
+void ServerConfigDialog::on_m_pButtonAddComputer_clicked()
+{
+    Screen newScreen("");
+
+    ScreenSettingsDialog dlg(this, &newScreen, &model().m_Screens);
+    if (dlg.exec() == QDialog::Accepted)
+    {
+        model().addScreen(newScreen);
+    }
+
+    m_pButtonAddComputer->setEnabled(!model().isFull());
+}
+
+void ServerConfigDialog::onScreenRemoved()
+{
+    m_pButtonAddComputer->setEnabled(true);
+}

src/gui/src/ServerConfigDialog.h

@@ -51,6 +51,8 @@ class ServerConfigDialog : public QDialog, public Ui::ServerConfigDialogBase
         void on_m_pButtonRemoveAction_clicked();
 
         void on_m_pCheckBoxEnableClipboard_stateChanged(int state);
+        void on_m_pButtonAddComputer_clicked();
+        void onScreenRemoved();
 
     protected:
         ServerConfig& serverConfig() { return m_ServerConfig; }

src/gui/src/TrashScreenWidget.cpp

@@ -36,8 +36,13 @@ void TrashScreenWidget::dragEnterEvent(QDragEnterEvent* event)
 void TrashScreenWidget::dropEvent(QDropEvent* event)
 {
     if (event->mimeData()->hasFormat(ScreenSetupModel::mimeType()))
+    {
         event->acceptProposedAction();
+        emit screenRemoved();
+    }
     else
+    {
         event->ignore();
+    }
 }
 

src/gui/src/TrashScreenWidget.h

@@ -36,6 +36,10 @@ class TrashScreenWidget : public QLabel
     public:
         void dragEnterEvent(QDragEnterEvent* event);
         void dropEvent(QDropEvent* event);
+
+    signals:
+        void screenRemoved();
+
 };
 
 #endif