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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Reflection;
using System.Windows.Forms;
using System.IO;
using WeifenLuo.WinFormsUI.Docking;
using DockSample.Customization;

namespace DockSample
{
    public partial class MainForm : Form
    {
        private bool m_bSaveLayout = true;
        private DeserializeDockContent m_deserializeDockContent;
        private DummySolutionExplorer m_solutionExplorer;
        private DummyPropertyWindow m_propertyWindow;
        private DummyToolbox m_toolbox;
        private DummyOutputWindow m_outputWindow;
        private DummyTaskList m_taskList;

        public MainForm()
        {
            InitializeComponent();

            CreateStandardControls();

            showRightToLeft.Checked = (RightToLeft == RightToLeft.Yes);
            RightToLeftLayout = showRightToLeft.Checked;
            m_solutionExplorer.RightToLeftLayout = RightToLeftLayout;
            m_deserializeDockContent = new DeserializeDockContent(GetContentFromPersistString);
        }

        #region Methods

        private IDockContent FindDocument(string text)
        {
            if (dockPanel.DocumentStyle == DocumentStyle.SystemMdi)
            {
                foreach (Form form in MdiChildren)
                    if (form.Text == text)
                        return form as IDockContent;

                return null;
            }
            else
            {
                foreach (IDockContent content in dockPanel.Documents)
                    if (content.DockHandler.TabText == text)
                        return content;

                return null;
            }
        }

        private DummyDoc CreateNewDocument()
        {
            DummyDoc dummyDoc = new DummyDoc();

            int count = 1;
            //string text = "C:\\MADFDKAJ\\ADAKFJASD\\ADFKDSAKFJASD\\ASDFKASDFJASDF\\ASDFIJADSFJ\\ASDFKDFDA" + count.ToString();
            string text = "Document" + count.ToString();
            while (FindDocument(text) != null)
            {
                count++;
                //text = "C:\\MADFDKAJ\\ADAKFJASD\\ADFKDSAKFJASD\\ASDFKASDFJASDF\\ASDFIJADSFJ\\ASDFKDFDA" + count.ToString();
                text = "Document" + count.ToString();
            }
            dummyDoc.Text = text;
            return dummyDoc;
        }

        private DummyDoc CreateNewDocument(string text)
        {
            DummyDoc dummyDoc = new DummyDoc();
            dummyDoc.Text = text;
            return dummyDoc;
        }

        private void CloseAllDocuments()
        {
            if (dockPanel.DocumentStyle == DocumentStyle.SystemMdi)
            {
                foreach (Form form in MdiChildren)
                    form.Close();
            }
            else
            {
                foreach (IDockContent document in dockPanel.DocumentsToArray())
                {
                    document.DockHandler.Close();
                }
            }
        }

        private IDockContent GetContentFromPersistString(string persistString)
        {
            if (persistString == typeof(DummySolutionExplorer).ToString())
                return m_solutionExplorer;
            else if (persistString == typeof(DummyPropertyWindow).ToString())
                return m_propertyWindow;
            else if (persistString == typeof(DummyToolbox).ToString())
                return m_toolbox;
            else if (persistString == typeof(DummyOutputWindow).ToString())
                return m_outputWindow;
            else if (persistString == typeof(DummyTaskList).ToString())
                return m_taskList;
            else
            {
                // DummyDoc overrides GetPersistString to add extra information into persistString.
                // Any DockContent may override this value to add any needed information for deserialization.

                string[] parsedStrings = persistString.Split(new char[] { ',' });
                if (parsedStrings.Length != 3)
                    return null;

                if (parsedStrings[0] != typeof(DummyDoc).ToString())
                    return null;

                DummyDoc dummyDoc = new DummyDoc();
                if (parsedStrings[1] != string.Empty)
                    dummyDoc.FileName = parsedStrings[1];
                if (parsedStrings[2] != string.Empty)
                    dummyDoc.Text = parsedStrings[2];

                return dummyDoc;
            }
        }

        private void CloseAllContents()
        {
            // we don't want to create another instance of tool window, set DockPanel to null
            m_solutionExplorer.DockPanel = null;
            m_propertyWindow.DockPanel = null;
            m_toolbox.DockPanel = null;
            m_outputWindow.DockPanel = null;
            m_taskList.DockPanel = null;

            // Close all other document windows
            CloseAllDocuments();
        }

        private void SetSchema(object sender, System.EventArgs e)
        {
            CloseAllContents();

            if (sender == menuItemSchemaVS2005)
                Extender.SetSchema(dockPanel, Extender.Schema.VS2005);
            else if (sender == menuItemSchemaVS2003)
                Extender.SetSchema(dockPanel, Extender.Schema.VS2003);

            menuItemSchemaVS2005.Checked = (sender == menuItemSchemaVS2005);
            menuItemSchemaVS2003.Checked = (sender == menuItemSchemaVS2003);
        }

        private void SetDocumentStyle(object sender, System.EventArgs e)
        {
            DocumentStyle oldStyle = dockPanel.DocumentStyle;
            DocumentStyle newStyle;
            if (sender == menuItemDockingMdi)
                newStyle = DocumentStyle.DockingMdi;
            else if (sender == menuItemDockingWindow)
                newStyle = DocumentStyle.DockingWindow;
            else if (sender == menuItemDockingSdi)
                newStyle = DocumentStyle.DockingSdi;
            else
                newStyle = DocumentStyle.SystemMdi;

            if (oldStyle == newStyle)
                return;

            if (oldStyle == DocumentStyle.SystemMdi || newStyle == DocumentStyle.SystemMdi)
                CloseAllDocuments();

            dockPanel.DocumentStyle = newStyle;
            menuItemDockingMdi.Checked = (newStyle == DocumentStyle.DockingMdi);
            menuItemDockingWindow.Checked = (newStyle == DocumentStyle.DockingWindow);
            menuItemDockingSdi.Checked = (newStyle == DocumentStyle.DockingSdi);
            menuItemSystemMdi.Checked = (newStyle == DocumentStyle.SystemMdi);
            menuItemLayoutByCode.Enabled = (newStyle != DocumentStyle.SystemMdi);
            menuItemLayoutByXml.Enabled = (newStyle != DocumentStyle.SystemMdi);
            toolBarButtonLayoutByCode.Enabled = (newStyle != DocumentStyle.SystemMdi);
            toolBarButtonLayoutByXml.Enabled = (newStyle != DocumentStyle.SystemMdi);
        }

        private void SetDockPanelSkinOptions(bool isChecked)
        {
            if (isChecked)
            {
                // All of these options may be set in the designer.
                // This is not a complete list of possible options available in the skin.

                AutoHideStripSkin autoHideSkin = new AutoHideStripSkin();
                autoHideSkin.DockStripGradient.StartColor = Color.AliceBlue;
                autoHideSkin.DockStripGradient.EndColor = Color.Blue;
                autoHideSkin.DockStripGradient.LinearGradientMode = System.Drawing.Drawing2D.LinearGradientMode.ForwardDiagonal;
                autoHideSkin.TabGradient.StartColor = SystemColors.Control;
                autoHideSkin.TabGradient.EndColor = SystemColors.ControlDark;
                autoHideSkin.TabGradient.TextColor = SystemColors.ControlText;
                autoHideSkin.TextFont = new Font("Showcard Gothic", 10);

                dockPanel.Skin.AutoHideStripSkin = autoHideSkin;

                DockPaneStripSkin dockPaneSkin = new DockPaneStripSkin();
                dockPaneSkin.DocumentGradient.DockStripGradient.StartColor = Color.Red;
                dockPaneSkin.DocumentGradient.DockStripGradient.EndColor = Color.Pink;

                dockPaneSkin.DocumentGradient.ActiveTabGradient.StartColor = Color.Green;
                dockPaneSkin.DocumentGradient.ActiveTabGradient.EndColor = Color.Green;
                dockPaneSkin.DocumentGradient.ActiveTabGradient.TextColor = Color.White;

                dockPaneSkin.DocumentGradient.InactiveTabGradient.StartColor = Color.Gray;
                dockPaneSkin.DocumentGradient.InactiveTabGradient.EndColor = Color.Gray;
                dockPaneSkin.DocumentGradient.InactiveTabGradient.TextColor = Color.Black;

                dockPaneSkin.TextFont = new Font("SketchFlow Print", 10);

                dockPanel.Skin.DockPaneStripSkin = dockPaneSkin;
            }
            else
            {
                dockPanel.Skin = new DockPanelSkin();
            }

            menuItemLayoutByXml_Click(menuItemLayoutByXml, EventArgs.Empty);
        }

        #endregion

        #region Event Handlers

        private void menuItemExit_Click(object sender, System.EventArgs e)
        {
            Close();
        }

        private void menuItemSolutionExplorer_Click(object sender, System.EventArgs e)
        {
            m_solutionExplorer.Show(dockPanel);
        }

        private void menuItemPropertyWindow_Click(object sender, System.EventArgs e)
        {
            m_propertyWindow.Show(dockPanel);
        }

        private void menuItemToolbox_Click(object sender, System.EventArgs e)
        {
            m_toolbox.Show(dockPanel);
        }

        private void menuItemOutputWindow_Click(object sender, System.EventArgs e)
        {
            m_outputWindow.Show(dockPanel);
        }

        private void menuItemTaskList_Click(object sender, System.EventArgs e)
        {
            m_taskList.Show(dockPanel);
        }

        private void menuItemAbout_Click(object sender, System.EventArgs e)
        {
            AboutDialog aboutDialog = new AboutDialog();
            aboutDialog.ShowDialog(this);
        }

        private void menuItemNew_Click(object sender, System.EventArgs e)
        {
            DummyDoc dummyDoc = CreateNewDocument();
            if (dockPanel.DocumentStyle == DocumentStyle.SystemMdi)
            {
                dummyDoc.MdiParent = this;
                dummyDoc.Show();
            }
            else
                dummyDoc.Show(dockPanel);
        }

        private void menuItemOpen_Click(object sender, System.EventArgs e)
        {
            OpenFileDialog openFile = new OpenFileDialog();

            openFile.InitialDirectory = Application.ExecutablePath;
            openFile.Filter = "rtf files (*.rtf)|*.rtf|txt files (*.txt)|*.txt|All files (*.*)|*.*";
            openFile.FilterIndex = 1;
            openFile.RestoreDirectory = true;

            if (openFile.ShowDialog() == DialogResult.OK)
            {
                string fullName = openFile.FileName;
                string fileName = Path.GetFileName(fullName);

                if (FindDocument(fileName) != null)
                {
                    MessageBox.Show("The document: " + fileName + " has already opened!");
                    return;
                }

                DummyDoc dummyDoc = new DummyDoc();
                dummyDoc.Text = fileName;
                if (dockPanel.DocumentStyle == DocumentStyle.SystemMdi)
                {
                    dummyDoc.MdiParent = this;
                    dummyDoc.Show();
                }
                else
                    dummyDoc.Show(dockPanel);
                try
                {
                    dummyDoc.FileName = fullName;
                }
                catch (Exception exception)
                {
                    dummyDoc.Close();
                    MessageBox.Show(exception.Message);
                }

            }
        }

        private void menuItemFile_Popup(object sender, System.EventArgs e)
        {
            if (dockPanel.DocumentStyle == DocumentStyle.SystemMdi)
            {
                menuItemClose.Enabled =
                    menuItemCloseAll.Enabled =
                    menuItemCloseAllButThisOne.Enabled = (ActiveMdiChild != null);
            }
            else
            {
                menuItemClose.Enabled = (dockPanel.ActiveDocument != null);
                menuItemCloseAll.Enabled =
                    menuItemCloseAllButThisOne.Enabled = (dockPanel.DocumentsCount > 0);
            }
        }

        private void menuItemClose_Click(object sender, System.EventArgs e)
        {
            if (dockPanel.DocumentStyle == DocumentStyle.SystemMdi)
                ActiveMdiChild.Close();
            else if (dockPanel.ActiveDocument != null)
                dockPanel.ActiveDocument.DockHandler.Close();
        }

        private void menuItemCloseAll_Click(object sender, System.EventArgs e)
        {
            CloseAllDocuments();
        }

        private void MainForm_Load(object sender, System.EventArgs e)
        {
            string configFile = Path.Combine(Path.GetDirectoryName(Application.ExecutablePath), "DockPanel.config");

            if (File.Exists(configFile))
                dockPanel.LoadFromXml(configFile, m_deserializeDockContent);
        }

        private void MainForm_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            string configFile = Path.Combine(Path.GetDirectoryName(Application.ExecutablePath), "DockPanel.config");
            if (m_bSaveLayout)
                dockPanel.SaveAsXml(configFile);
            else if (File.Exists(configFile))
                File.Delete(configFile);
        }

        private void menuItemToolBar_Click(object sender, System.EventArgs e)
        {
            toolBar.Visible = menuItemToolBar.Checked = !menuItemToolBar.Checked;
        }

        private void menuItemStatusBar_Click(object sender, System.EventArgs e)
        {
            statusBar.Visible = menuItemStatusBar.Checked = !menuItemStatusBar.Checked;
        }

        private void toolBar_ButtonClick(object sender, System.Windows.Forms.ToolStripItemClickedEventArgs e)
        {
            if (e.ClickedItem == toolBarButtonNew)
                menuItemNew_Click(null, null);
            else if (e.ClickedItem == toolBarButtonOpen)
                menuItemOpen_Click(null, null);
            else if (e.ClickedItem == toolBarButtonSolutionExplorer)
                menuItemSolutionExplorer_Click(null, null);
            else if (e.ClickedItem == toolBarButtonPropertyWindow)
                menuItemPropertyWindow_Click(null, null);
            else if (e.ClickedItem == toolBarButtonToolbox)
                menuItemToolbox_Click(null, null);
            else if (e.ClickedItem == toolBarButtonOutputWindow)
                menuItemOutputWindow_Click(null, null);
            else if (e.ClickedItem == toolBarButtonTaskList)
                menuItemTaskList_Click(null, null);
            else if (e.ClickedItem == toolBarButtonLayoutByCode)
                menuItemLayoutByCode_Click(null, null);
            else if (e.ClickedItem == toolBarButtonLayoutByXml)
                menuItemLayoutByXml_Click(null, null);
            else if (e.ClickedItem == toolBarButtonDockPanelSkinDemo)
                SetDockPanelSkinOptions(!toolBarButtonDockPanelSkinDemo.Checked);
        }

        private void menuItemNewWindow_Click(object sender, System.EventArgs e)
        {
            MainForm newWindow = new MainForm();
            newWindow.Text = newWindow.Text + " - New";
            newWindow.Show();
        }

        private void menuItemTools_Popup(object sender, System.EventArgs e)
        {
            menuItemLockLayout.Checked = !this.dockPanel.AllowEndUserDocking;
        }

        private void menuItemLockLayout_Click(object sender, System.EventArgs e)
        {
            dockPanel.AllowEndUserDocking = !dockPanel.AllowEndUserDocking;
        }

        private void menuItemLayoutByCode_Click(object sender, System.EventArgs e)
        {
            dockPanel.SuspendLayout(true);

            CloseAllDocuments();

            CreateStandardControls();

            m_solutionExplorer.Show(dockPanel, DockState.DockRight);
            m_propertyWindow.Show(m_solutionExplorer.Pane, m_solutionExplorer);
            m_toolbox.Show(dockPanel, new Rectangle(98, 133, 200, 383));
            m_outputWindow.Show(m_solutionExplorer.Pane, DockAlignment.Bottom, 0.35);
            m_taskList.Show(m_toolbox.Pane, DockAlignment.Left, 0.4);

            DummyDoc doc1 = CreateNewDocument("Document1");
            DummyDoc doc2 = CreateNewDocument("Document2");
            DummyDoc doc3 = CreateNewDocument("Document3");
            DummyDoc doc4 = CreateNewDocument("Document4");
            doc1.Show(dockPanel, DockState.Document);
            doc2.Show(doc1.Pane, null);
            doc3.Show(doc1.Pane, DockAlignment.Bottom, 0.5);
            doc4.Show(doc3.Pane, DockAlignment.Right, 0.5);

            dockPanel.ResumeLayout(true, true);
        }

        private void CreateStandardControls()
        {
            m_solutionExplorer = new DummySolutionExplorer();
            m_propertyWindow = new DummyPropertyWindow();
            m_toolbox = new DummyToolbox();
            m_outputWindow = new DummyOutputWindow();
            m_taskList = new DummyTaskList();
        }

        private void menuItemLayoutByXml_Click(object sender, System.EventArgs e)
        {
            dockPanel.SuspendLayout(true);

            // In order to load layout from XML, we need to close all the DockContents
            CloseAllContents();

            CreateStandardControls();

            Assembly assembly = Assembly.GetAssembly(typeof(MainForm));
            Stream xmlStream = assembly.GetManifestResourceStream("DockSample.Resources.DockPanel.xml");
            dockPanel.LoadFromXml(xmlStream, m_deserializeDockContent);
            xmlStream.Close();

            dockPanel.ResumeLayout(true, true);
        }

        private void menuItemCloseAllButThisOne_Click(object sender, System.EventArgs e)
        {
            if (dockPanel.DocumentStyle == DocumentStyle.SystemMdi)
            {
                Form activeMdi = ActiveMdiChild;
                foreach (Form form in MdiChildren)
                {
                    if (form != activeMdi)
                        form.Close();
                }
            }
            else
            {
                foreach (IDockContent document in dockPanel.DocumentsToArray())
                {
                    if (!document.DockHandler.IsActivated)
                        document.DockHandler.Close();
                }
            }
        }

        private void menuItemShowDocumentIcon_Click(object sender, System.EventArgs e)
        {
            dockPanel.ShowDocumentIcon = menuItemShowDocumentIcon.Checked = !menuItemShowDocumentIcon.Checked;
        }

        private void showRightToLeft_Click(object sender, EventArgs e)
        {
            CloseAllContents();
            if (showRightToLeft.Checked)
            {
                this.RightToLeft = RightToLeft.No;
                this.RightToLeftLayout = false;
            }
            else
            {
                this.RightToLeft = RightToLeft.Yes;
                this.RightToLeftLayout = true;
            }
            m_solutionExplorer.RightToLeftLayout = this.RightToLeftLayout;
            showRightToLeft.Checked = !showRightToLeft.Checked;
        }

        private void exitWithoutSavingLayout_Click(object sender, EventArgs e)
        {
            m_bSaveLayout = false;
            Close();
            m_bSaveLayout = true;
        }

        #endregion
    }
}
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