FrmPrincipal: Lista de ventanas (tipo tabs)

ServerExplorer/UI/FrmPrincipal.cs

@@ -7,33 +7,100 @@ using System.Linq;
 using System.Text;
 using System.Windows.Forms;
 using ServerExplorer.Code;
+using ServerExplorer.Controls;
 
 namespace ServerExplorer.UI
 {
     public partial class FrmPrincipal : Form
     {
+        #region Declarations
+
+        private static FrmPrincipal currentInstance;
+
+        #endregion
+
+        #region Creator
+
         public FrmPrincipal()
         {
+            currentInstance = this;
             InitializeComponent();
         }
 
+        #endregion
+
+        #region WindowList
+
+        private List<Form> listChilds = new List<Form>();
+
+        public static void AddForm(Form frm)
+        {
+            frm.MdiParent = currentInstance;
+            frm.WindowState = FormWindowState.Maximized;
+            frm.Show();
+            currentInstance.listChilds.Add(frm);
+            frm.FormClosed += currentInstance.FrmPrincipal_OnChildClose;
+            currentInstance.RefreshWindowButtons();
+        }
+
+        protected void FrmPrincipal_OnChildClose(object sender, FormClosedEventArgs e)
+        {
+            listChilds.Remove((Form)sender);
+            RefreshWindowButtons();
+        }
+
+        private void FrmPrincipal_MdiChildActivate(object sender, EventArgs e)
+        {
+            RefreshWindowButtons();
+        }
+
+        private void RefreshWindowButtons()
+        {
+            int childCount = listChilds.Count;
+            int delta = childCount - flowpnlWindows.Controls.Count;
+            if (delta < 0)
+            {
+                int dest = flowpnlWindows.Controls.Count + delta;
+                for (int i = flowpnlWindows.Controls.Count - 1; i >= dest; i--)
+                {
+                    flowpnlWindows.Controls.RemoveAt(i);
+                }
+            }
+            else if (delta > 0)
+            {
+                for (int i = 0; i < delta; i++)
+                {
+                    flowpnlWindows.Controls.Add(new WindowButton());
+                }
+            }
+            for (int i = 0; i < childCount; i++)
+            {
+                WindowButton btn = (WindowButton)flowpnlWindows.Controls[i];
+                Form frm = listChilds[i];
+                btn.Text = frm.Text;
+                btn.Window = frm;
+                btn.Active = (frm == ActiveMdiChild);
+            }
+        }
+
+        #endregion
+
+        #region Menus
+
         private void menuConectarPRUEBAS_Click(object sender, EventArgs e)
         {
             // Crear ventana de la base de datos de pruebas
             FrmBaseDatos frm = new FrmBaseDatos("Data Source=SSSRV3;Initial Catalog=PRUEBAS;User ID=sa;Password=SLsssrv3");
             //frmBaseDatos frm = new frmBaseDatos("Data Source=DANTE;Initial Catalog=BD_AlfonsoRodriguez;Integrated Security=True");
             //frmBaseDatos frm = new frmBaseDatos("Data Source=OSKURITO;Initial Catalog=BD_AlfonsoRodriguez;Integrated Security=True");
-            frm.MdiParent = this;
-            frm.WindowState = FormWindowState.Maximized;
-            frm.Show();
+            FrmPrincipal.AddForm(frm);
         }
 
         private void menuBuscarServidor_Click(object sender, EventArgs e)
         {
             // Mostrar ventana de buscador de servidores
             FrmServidores frm = new FrmServidores();
-            frm.MdiParent = this;
-            frm.Show();
+            FrmPrincipal.AddForm(frm);
         }
 
         private void menuConectarA_Click(object sender, EventArgs e)
@@ -46,10 +113,10 @@ namespace ServerExplorer.UI
 
                 // Crear y mostrar ventana
                 FrmBaseDatos frm = new FrmBaseDatos(config);
-                frm.MdiParent = this;
-                frm.WindowState = FormWindowState.Maximized;
-                frm.Show();
+                FrmPrincipal.AddForm(frm);
             }
         }
+
+        #endregion
     }
 }