mcs/class/System.Design/System.Windows.Forms.Design/DocumentDesigner.cs

   1 //
   2 // System.Windows.Forms.Design.DocumentDesigner
   3 //
   4 // Authors:
   5 //        Ivan N. Zlatev (contact i-nZ.net)
   6 //
   7 // (C) 2006-2007 Ivan N. Zlatev
   8
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System;
  31 using System.ComponentModel;
  32 using System.ComponentModel.Design;
  33 using System.Windows.Forms;
  34 using System.Drawing;
  35 using System.Drawing.Design;
  36 using System.Collections;
  37 using System.Windows.Forms.Design.Behavior;
  38
  39 namespace System.Windows.Forms.Design
  40 {
  41         [ToolboxItemFilter ("System.Windows.Forms")]
  42         public class DocumentDesigner : ScrollableControlDesigner, IRootDesigner, IToolboxUser
  43         {
  44
  45                 // This is what you *see*
  46                 /*
  47                         .-------------------------------------.
  48                         | Panel to host the designed Control  |
  49                         |--------------Splitter---------------|
  50                         |         Panel with a ComponentTray     |
  51                         |_____________________________________|
  52
  53                 */
  54                 //
  55 #region DesignerViewFrame
  56                 public class DesignerViewFrame : System.Windows.Forms.UserControl
  57                 {
  58                         private System.Windows.Forms.Panel DesignerPanel;
  59                         private System.Windows.Forms.Splitter splitter1;
  60                         private System.Windows.Forms.Panel ComponentTrayPanel;
  61                         private ComponentTray _componentTray;
  62                         private Control _designedControl;
  63
  64                         public DesignerViewFrame (Control designedControl, ComponentTray tray)
  65                         {
  66                                 if (designedControl == null) {
  67                                         throw new ArgumentNullException ("designedControl");
  68                                 }
  69                                 if (tray == null) {
  70                                         throw new ArgumentNullException ("tray");
  71                                 }
  72                                 //
  73                                 // The InitializeComponent() call is required for Windows Forms designer support.
  74                                 //
  75                                 InitializeComponent();
  76
  77                                 _designedControl = designedControl;
  78                                 this.SuspendLayout ();
  79                                 this.DesignerPanel.Controls.Add (designedControl);
  80                                 this.ResumeLayout ();
  81
  82                                 this.ComponentTray = tray;
  83                         }
  84
  85 #region Windows Forms Designer generated code
  86                         /// <summary>
  87                         /// This method is required for Windows Forms designer support.
  88                         /// Do not change the method contents inside the source code editor. The Forms designer might
  89                         /// not be able to load this method if it was changed manually.
  90                         /// </summary>
  91                         private void InitializeComponent() {
  92                                 this.ComponentTrayPanel = new System.Windows.Forms.Panel();
  93                                 this.splitter1 = new System.Windows.Forms.Splitter();
  94                                 this.DesignerPanel = new System.Windows.Forms.Panel();
  95                                 this.SuspendLayout();
  96                                 //
  97                                 // ComponentTrayPanel
  98                                 //
  99                                 this.ComponentTrayPanel.BackColor = System.Drawing.Color.LemonChiffon;
 100                                 this.ComponentTrayPanel.Dock = System.Windows.Forms.DockStyle.Bottom;
 101                                 this.ComponentTrayPanel.Location = new System.Drawing.Point(0, 194);
 102                                 this.ComponentTrayPanel.Name = "ComponentTrayPanel";
 103                                 this.ComponentTrayPanel.Size = new System.Drawing.Size(292, 72);
 104                                 this.ComponentTrayPanel.TabIndex = 1;
 105                                 this.ComponentTrayPanel.Visible = false;
 106                                 //
 107                                 // splitter1
 108                                 //
 109                                 this.splitter1.Dock = System.Windows.Forms.DockStyle.Bottom;
 110                                 this.splitter1.Location = new System.Drawing.Point(0, 186);
 111                                 this.splitter1.Name = "splitter1";
 112                                 this.splitter1.Size = new System.Drawing.Size(292, 8);
 113                                 this.splitter1.TabIndex = 2;
 114                                 this.splitter1.TabStop = false;
 115                                 this.splitter1.Visible = false;
 116                                 //
 117                                 // DesignerPanel
 118                                 //
 119                                 this.DesignerPanel.AutoScroll = true;
 120                                 this.DesignerPanel.BackColor = System.Drawing.Color.White;
 121                                 this.DesignerPanel.Dock = System.Windows.Forms.DockStyle.Fill;
 122                                 this.DesignerPanel.Location = new System.Drawing.Point(0, 0);
 123                                 this.DesignerPanel.Name = "DesignerPanel";
 124                                 this.DesignerPanel.Size = new System.Drawing.Size(292, 266);
 125                                 this.DesignerPanel.TabIndex = 0;
 126                                 this.DesignerPanel.MouseUp += new System.Windows.Forms.MouseEventHandler(this.DesignerPanel_MouseUp);
 127                                 this.DesignerPanel.MouseMove += new System.Windows.Forms.MouseEventHandler(this.DesignerPanel_MouseMove);
 128                                 this.DesignerPanel.MouseDown += new System.Windows.Forms.MouseEventHandler(this.DesignerPanel_MouseDown);
 129                                 this.DesignerPanel.Paint += new PaintEventHandler (DesignerPanel_Paint);
 130                                 //
 131                                 // DesignerViewFrame
 132                                 //
 133                                 this.Controls.Add(this.splitter1);
 134                                 this.Controls.Add(this.ComponentTrayPanel);
 135                                 this.Controls.Add(this.DesignerPanel);
 136                                 this.Name = "UserControl1";
 137                                 this.Size = new System.Drawing.Size(292, 266);
 138                                 this.Dock = DockStyle.Fill;
 139                                 this.ResumeLayout(false);
 140                         }
 141
 142 #endregion
 143
 144                         private bool _mouseDown = false;
 145                         private bool _firstMove = false;
 146
 147                         void DesignerPanel_Paint (object sender, PaintEventArgs e)
 148                         {
 149                                 IUISelectionService selectionServ = this.DesignedControl.Site.GetService (typeof (IUISelectionService)) as IUISelectionService;
 150                                 if (selectionServ != null)
 151                                         selectionServ.PaintAdornments (this.DesignerPanel, e.Graphics);
 152                         }
 153
 154                         void DesignerPanel_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
 155                         {
 156                                 _mouseDown = true;
 157                                 _firstMove = true;
 158                         }
 159
 160                         void DesignerPanel_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
 161                         {
 162                                 IUISelectionService selectionServ = this.DesignedControl.Site.GetService (typeof (IUISelectionService)) as IUISelectionService;
 163                                 if (selectionServ == null)
 164                                         return;
 165
 166                                 selectionServ.SetCursor (e.X, e.Y);
 167                                 if (_mouseDown) {
 168                                         if (_firstMove) {
 169                                                 selectionServ.MouseDragBegin (this.DesignerPanel, e.X, e.Y);
 170                                                 _firstMove = false;
 171                                         }
 172                                         else {
 173                                                 selectionServ.MouseDragMove (e.X, e.Y);
 174                                         }
 175                                 }
 176                                 else if (selectionServ.SelectionInProgress) {
 177                                         selectionServ.MouseDragMove (e.X, e.Y);
 178                                 }
 179                         }
 180
 181                         void DesignerPanel_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
 182                         {
 183                                 IUISelectionService selectionServ = this.DesignedControl.Site.GetService (typeof (IUISelectionService)) as IUISelectionService;
 184                                 if (_mouseDown) {
 185                                         if (selectionServ != null)
 186                                                 selectionServ.MouseDragEnd (false);
 187                                         _mouseDown = false;
 188                                 }
 189                                 else if (selectionServ.SelectionInProgress) {
 190                                         selectionServ.MouseDragEnd (false);
 191                                 }
 192                         }
 193
 194                         // by default the component tray is hidden and essentially should be shown once there
 195                         // is a component added to it
 196                         //
 197                         public void ShowComponentTray ()
 198                         {
 199                                 if (!this.ComponentTray.Visible) {
 200                                         this.ComponentTrayPanel.Visible = true;
 201                                         this.ComponentTray.Visible = true;
 202                                         this.splitter1.Visible = true;
 203                                 }
 204                         }
 205
 206                         public void HideComponentTray ()
 207                         {
 208                                 if (!this.ComponentTray.Visible) {
 209                                         this.ComponentTrayPanel.Visible = true;
 210                                         this.ComponentTray.Visible = true;
 211                                         this.splitter1.Visible = true;
 212                                 }
 213                         }
 214
 215                         public ComponentTray ComponentTray {
 216                                 get { return _componentTray; }
 217                                 set {
 218                                         this.SuspendLayout ();
 219                                         this.ComponentTrayPanel.Controls.Remove (_componentTray);
 220                                         this.ComponentTrayPanel.Controls.Add (value);
 221                                         this.ResumeLayout ();
 222                                         _componentTray = value;
 223                                         _componentTray.Visible = false;
 224                                 }
 225                         }
 226
 227                         public Control DesignedControl {
 228                                 get { return _designedControl; }
 229                                 set {
 230                                 }
 231                         }
 232
 233                         protected override void Dispose (bool disposing)
 234                         {
 235                                 if (_designedControl != null) {
 236                                         this.DesignerPanel.Controls.Remove (_designedControl);
 237                                         _designedControl = null;
 238                                 }
 239
 240                                 if (_componentTray != null) {
 241                                         this.ComponentTrayPanel.Controls.Remove (_componentTray);
 242                                         _componentTray.Dispose ();
 243                                         _componentTray = null;
 244                                 }
 245
 246                                 base.Dispose (disposing);
 247                         }
 248                 }
 249 #endregion
 250
 251
 252
 253
 254                 private DesignerViewFrame _designerViewFrame;
 255
 256                 public DocumentDesigner ()
 257                 {
 258                 }
 259
 260                 private DesignerViewFrame View {
 261                         get { return _designerViewFrame; }
 262                 }
 263
 264 #region Initialization
 265                 public override void Initialize (IComponent component)
 266                 {
 267                         base.Initialize (component);
 268
 269                         _designerViewFrame = new DesignerViewFrame (this.Control, new ComponentTray (this, component.Site));
 270                         _designerViewFrame.DesignedControl.Location = new Point (15, 15);
 271                         SetValue (this.Component,  "Location", new Point (0, 0));
 272
 273                         IComponentChangeService componentChangeSvc = GetService (typeof (IComponentChangeService)) as IComponentChangeService;
 274                         if (componentChangeSvc != null) {
 275                                 componentChangeSvc.ComponentAdded += new ComponentEventHandler (OnComponentAdded);
 276                                 componentChangeSvc.ComponentRemoved += new ComponentEventHandler (OnComponentRemoved);
 277                         }
 278
 279                         IMenuCommandService menuCommands = GetService (typeof (IMenuCommandService)) as IMenuCommandService;
 280                         IServiceContainer serviceContainer = this.GetService (typeof (IServiceContainer)) as IServiceContainer;
 281                         if (menuCommands != null && serviceContainer != null)
 282                                 new DefaultMenuCommands (serviceContainer).AddTo (menuCommands);
 283                         InitializeSelectionService ();
 284                 }
 285
 286                 private void InitializeSelectionService ()
 287                 {
 288                         IUISelectionService guiSelectionService = this.GetService (typeof (IUISelectionService)) as IUISelectionService;
 289                         if (guiSelectionService == null) {
 290                                 IServiceContainer serviceContainer = this.GetService (typeof (IServiceContainer)) as IServiceContainer;
 291                                 serviceContainer.AddService (typeof (IUISelectionService), (IUISelectionService) new UISelectionService (serviceContainer));
 292                         }
 293
 294                         ISelectionService selectionService = this.GetService (typeof (ISelectionService)) as ISelectionService;
 295                         selectionService.SetSelectedComponents (new IComponent[] { this.Component });
 296                 }
 297
 298
 299                 protected override void Dispose (bool disposing)
 300                 {
 301                         if (disposing) {
 302                                 if (_designerViewFrame != null) {
 303                                         _designerViewFrame.Dispose ();
 304                                         _designerViewFrame = null;
 305
 306                                 }
 307                                 IComponentChangeService componentChangeSvc = GetService (typeof (IComponentChangeService)) as IComponentChangeService;
 308                                 if (componentChangeSvc != null) {
 309                                         componentChangeSvc.ComponentAdded -= new ComponentEventHandler (OnComponentAdded);
 310                                         componentChangeSvc.ComponentRemoved -= new ComponentEventHandler (OnComponentRemoved);
 311                                 }
 312                         }
 313                         base.Dispose (disposing);
 314                 }
 315 #endregion
 316
 317
 318 #region MSDN says overriden
 319
 320                 public override GlyphCollection GetGlyphs (GlyphSelectionType selectionType)
 321                 {
 322                         return base.GetGlyphs (selectionType);
 323                 }
 324
 325                 protected override void WndProc (ref Message m)
 326                 {
 327                         base.WndProc (ref m);
 328                 }
 329
 330                 protected override void OnContextMenu (int x, int y)
 331                 {
 332                         base.OnContextMenu (x, y);
 333                 }
 334
 335                 protected override void OnCreateHandle ()
 336                 {
 337                         base.OnCreateHandle ();
 338                 }
 339
 340 #endregion
 341
 342
 343 #region Components and ComponentTray
 344
 345                 private void OnComponentAdded (object sender, ComponentEventArgs args)
 346                 {
 347                         if (!(args.Component is Control)) {
 348                                 this.View.ComponentTray.AddComponent (args.Component);
 349                                 if (this.View.ComponentTray.ComponentCount > 0) {
 350                                         if (!this.View.ComponentTray.Visible)
 351                                                 this.View.ShowComponentTray ();
 352                                 }
 353                         }
 354                 }
 355
 356                 private void OnComponentRemoved (object sender, ComponentEventArgs args)
 357                 {
 358                         if (!(args.Component is Control)) {
 359                                 this.View.ComponentTray.RemoveComponent (args.Component);
 360                                 if (this.View.ComponentTray.ComponentCount == 0) {
 361                                         if (this.View.ComponentTray.Visible)
 362                                                 this.View.HideComponentTray ();
 363                                 }
 364                         }
 365                 }
 366 #endregion
 367
 368
 369 #region IRootDesigner
 370
 371                 object IRootDesigner.GetView (ViewTechnology technology)
 372                 {
 373                         if (technology != ViewTechnology.Default)
 374                                 throw new ArgumentException ("Only ViewTechnology.WindowsForms is supported.");
 375                         return _designerViewFrame;
 376                 }
 377
 378                 ViewTechnology[] IRootDesigner.SupportedTechnologies {
 379                         get {
 380                                 return new ViewTechnology[] { ViewTechnology.Default };
 381                         }
 382                 }
 383 #endregion
 384
 385
 386 #region IToolBoxUser
 387
 388                 // Indicates whether the specified tool is supported by the designer.
 389                 // If it is not the tool is disabled in the toolbox.
 390                 //
 391                 // Used for subclasses, e.g the FormDocumentDesigner won't accept a Form?
 392                 //
 393                 bool IToolboxUser.GetToolSupported (ToolboxItem tool)
 394                 {
 395                         return this.GetToolSupported (tool);
 396                 }
 397
 398                 protected virtual bool GetToolSupported (ToolboxItem tool)
 399                 {
 400                         return true;
 401                 }
 402
 403
 404                 // Handles the behavior that occurs when a user double-clicks a toolbox item.
 405                 //
 406                 void IToolboxUser.ToolPicked (ToolboxItem tool)
 407                 {
 408                         this.ToolPicked (tool);
 409                 }
 410
 411                 // ToolPicked is called when the user double-clicks on a toolbox item.
 412                 // The document designer should create a component for the specified tool.
 413                 // Only tools that are enabled in the toolbox will be passed to this method.
 414                 //
 415                 // I create the component in the parent container of the primary selection.
 416                 // If not available I create it in the rootcomponent (this essentially :-) )
 417                 //
 418                 protected virtual void ToolPicked (ToolboxItem tool)
 419                 {
 420                         ISelectionService selectionSvc = GetService (typeof (ISelectionService)) as ISelectionService;
 421                         IDesignerHost host = GetService (typeof (IDesignerHost)) as IDesignerHost;
 422                         if (selectionSvc != null && host != null) {
 423                                 IDesigner designer = host.GetDesigner ((IComponent) selectionSvc.PrimarySelection);
 424                                 if (designer is ParentControlDesigner)
 425                                         ParentControlDesigner.InvokeCreateTool ((ParentControlDesigner) designer, tool);
 426                                 else
 427                                         this.CreateTool (tool);
 428                         }
 429                         else {
 430                                 this.CreateTool (tool);
 431                         }
 432                         IToolboxService tbServ = this.GetService (typeof (IToolboxService)) as IToolboxService;
 433                         tbServ.SelectedToolboxItemUsed ();
 434                 }
 435 #endregion
 436
 437
 438 #region Properties
 439                 // A root designer can be resized to the bottom and to the right.
 440                 //
 441                 public override SelectionRules SelectionRules {
 442                         get {
 443                                 return (SelectionRules.RightSizeable | SelectionRules.BottomSizeable | SelectionRules.Visible);
 444                         }
 445                 }
 446 #endregion
 447
 448
 449 #region Metadata filtering and Design-Time properties
 450
 451                 // MSDN says that this adds the "BackColor" and "Location" browsable design-time propeties.
 452                 //
 453                 // The reason for overwriting the Location property created by the ControDesigner is that
 454                 // the root component is not draggable (e.g a form has a static location in the DesignerViewFrame)
 455                 //
 456                 protected override void PreFilterProperties (IDictionary properties)
 457                 {
 458                         base.PreFilterProperties (properties);
 459
 460                         PropertyDescriptor propertyDescriptor = properties["BackColor"] as PropertyDescriptor;
 461                         if (propertyDescriptor != null) {
 462                                 properties["BackColor"] = TypeDescriptor.CreateProperty (typeof (DocumentDesigner),
 463                                                 propertyDescriptor,
 464                                                 new Attribute[] { new DefaultValueAttribute (System.Drawing.SystemColors.Control) });
 465                         }
 466
 467                         propertyDescriptor = properties["Location"] as PropertyDescriptor;
 468                         if (propertyDescriptor != null) {
 469                                 properties["Location"] = TypeDescriptor.CreateProperty (typeof (DocumentDesigner),
 470                                                 propertyDescriptor,
 471                                                 new Attribute[] { new DefaultValueAttribute (typeof (Point), "0, 0") });
 472                         }
 473                 }
 474
 475                 private Color BackColor {
 476                         get { return (Color) ShadowProperties["BackColor"]; }
 477                         set {
 478                                 ShadowProperties["BackColor"] = value;
 479                                 this.Control.BackColor = value;
 480                         }
 481                 }
 482
 483                 private Point Location {
 484                         get { return (Point) ShadowProperties["Location"]; }
 485                         set { ShadowProperties["Location"] = value; }
 486                 }
 487 #endregion
 488
 489
 490 #region Misc
 491                 protected IMenuEditorService menuEditorService;
 492
 493                 // Checks for the existence of a menu editor service and creates one if one does not already exist.
 494                 // component - The IComponent to ensure has a context menu service.
 495                 // XXX: Not sure exactly what this should do...
 496                 //
 497                 protected virtual void EnsureMenuEditorService (IComponent c)
 498                 {
 499                         if (this.menuEditorService == null && c is ContextMenu)
 500                                 menuEditorService = (IMenuEditorService) GetService (typeof (IMenuEditorService));
 501                 }
 502 #endregion
 503
 504         }
 505 }