windowdetailcaption.cs

Magic Library 1.7,有说明文档

            if (!IsDisposed)
            {
                // Left mouse down begins a redocking action
                if (e.Button == MouseButtons.Left)
                {
                    if (this.ParentWindow.RedockAllowed)
                    {
                        WindowContent wc = this.ParentWindow as WindowContent;

                        // Is our parent a WindowContent instance?				
                        if (wc != null)
                        {
                            // Start redocking activity for the whole WindowContent
                            _redocker = new RedockerContent(this, wc, new Point(e.X, e.Y));
                        }
                    }
                }

                this.Focus();
            }
            
            base.OnMouseDown(e);
        }

        protected override void OnMouseMove(MouseEventArgs e)
        {
            // The double click event will cause the control to be destroyed as 
            // the Contents are restored to their alternative positions, so need to
            // double check the control is not already dead
            if (!IsDisposed)
            {
                // Redocker object needs mouse movements
                if (_redocker != null)
                    _redocker.OnMouseMove(e);
            }

            base.OnMouseMove(e);
        }

        protected override void OnMouseUp(MouseEventArgs e)
        {
            // The double click event will cause the control to be destroyed as 
            // the Contents are restored to their alternative positions, so need to
            // double check the control is not already dead
            if (!IsDisposed)
            {
                // Are we currently in a redocking state?
                if (_redocker != null)
                {
                    // Let the redocker finish off
                    _redocker.OnMouseUp(e);

                    // No longer need the object
                    _redocker = null;
                }

                // Right mouse button can generate a Context event
                if (e.Button == MouseButtons.Right)
                {
					// Get screen coordinates of the mouse
					Point pt = this.PointToScreen(new Point(e.X, e.Y));
    				
					// Box to transfer as parameter
					OnContext(pt);
                }
            }
            
            base.OnMouseUp(e);
        }

        protected override void OnResize(EventArgs e)
        {
            // Any resize of control should redraw all of it
            Invalidate();
            base.OnResize(e);
        }

        protected virtual void DefineButtonRemapping() {}
        protected virtual void OnAddMaximizeInterface() {}
        protected virtual void OnRemoveMaximizeInterface() {}
        protected virtual void UpdateMaximizeImage() {}
        protected virtual void UpdateAutoHideImage() {}
        protected virtual void RecalculateButtons() {}
        
        protected virtual void CreateButtons() 
        {
            // Attach events to button
            if (_closeButton != null)
            {
                _closeButton.Click += new EventHandler(OnButtonClose);
                _closeButton.GotFocus += new EventHandler(OnButtonGotFocus);
            }

            if (_hideButton != null)
            {
                _hideButton.Click += new EventHandler(OnButtonHide);
                _hideButton.GotFocus += new EventHandler(OnButtonGotFocus);
            }
        }

        public bool PreFilterMessage(ref Message m)
        {
            // Has a key been pressed?
            if (m.Msg == (int)Win32.Msgs.WM_KEYDOWN)
            {
                // Is it the ESCAPE key?
                if ((int)m.WParam == (int)Win32.VirtualKeys.VK_ESCAPE)
                {                   
                    // Are we in redocking mode?
                    if (_redocker != null)
                    {
                        // Cancel the redocking activity
                        _redocker.QuitTrackingMode(null);

                        // No longer need the object
                        _redocker = null;
                        
                        return true;
                    }
                }
            }
            
            return false;
        }
    }

    [ToolboxItem(false)]
    public class WindowDetailCaptionPlain : WindowDetailCaption
    {
        protected enum ImageIndex
        {
            Close					= 0,
            EnabledHorizontalMax	= 1,
            EnabledHorizontalMin	= 2,
            EnabledVerticalMax		= 3,
            EnabledVerticalMin		= 4, 
            AutoHide		        = 5, 
            AutoShow		        = 6 
        }

        // Class constants
        protected const int _inset = 3;
        protected const int _offset = 5;
        protected const int _fixedLength = 14;
        protected const int _imageWidth = 10;
        protected const int _imageHeight = 10;
        protected const int _buttonWidth = 12;
        protected const int _buttonHeight = 12;
        protected const int _insetButton = 2;

        // Instance fields
        protected bool _dockLeft;
        protected int _buttonOffset;

        static WindowDetailCaptionPlain()
        {
            // Create a strip of images by loading an embedded bitmap resource
            _images = ResourceHelper.LoadBitmapStrip(Type.GetType("Crownwood.Magic.Docking.WindowDetailCaptionPlain"),
                                                     "Crownwood.Magic.Resources.ImagesCaptionPlain.bmp",
                                                     new Size(_imageWidth, _imageHeight),
                                                     new Point(0,0));
        }

        public WindowDetailCaptionPlain(DockingManager manager, 
                                        EventHandler closeHandler, 
                                        EventHandler restoreHandler, 
                                        EventHandler invertAutoHideHandler, 
                                        ContextHandler contextHandler)
            : base(manager, 
                   new Size(_fixedLength, _fixedLength), 
                   closeHandler, 
                   restoreHandler, 
                   invertAutoHideHandler, 
                   contextHandler)
        {
            // Default to thinking we are docked on a left edge
            _dockLeft = true;

            // Modify painting to prevent overwriting the button control
            _buttonOffset = 1 + (_buttonWidth + _insetButton) * 2;
        }
        
        public override void ParentStateChanged(State newState)
        {
            // Should we dock to the left or top of our container?
            switch(newState)
            {
                case State.DockTop:
                case State.DockBottom:
                    _dockLeft = true;
                    break;
                case State.Floating:
                case State.DockLeft:
                case State.DockRight:
                    _dockLeft = false;
                    break;
            }

            // Ignore the AutoHide feature when in floating form
            _ignoreHideButton = (_parentWindow.State == State.Floating);

            RecalculateButtons();
        }

        public override void RemovedFromParent(Window parent)
        {
            if (parent != null)
            {
                if (this.Dock != DockStyle.None)
                {
                    Size minSize = parent.MinimalSize;

                    if (this.Dock == DockStyle.Left)
                    {
                        // Remove our width from the minimum size of the parent
                        minSize.Width -= _fixedLength;
                    }
                    else
                    {
                        // Remove our height from the minimum size of the parent
                        minSize.Height -= _fixedLength;
                    }

                    parent.MinimalSize = minSize;
                }
            }
        }

        public override void AddedToParent(Window parent)
        {
            if (parent != null)
            {
                if (this.Dock != DockStyle.None)
                {
                    Size minSize = parent.MinimalSize;

                    if (this.Dock == DockStyle.Left)
                    {
                        // Add our width from the minimum size of the parent
                        minSize.Width += _fixedLength;
                    }
                    else
                    {
                        // Add our height from the minimum size of the parent
                        minSize.Height += _fixedLength;
                    }

                    parent.MinimalSize = minSize;
                }
            }
        }
        
        protected override void DefineButtonRemapping()
        {
            // Define use of current system colors
            ColorMap activeMap = new ColorMap();
            ColorMap inactiveMap = new ColorMap();
			
            activeMap.OldColor = Color.Black;
            activeMap.NewColor = _manager.InactiveTextColor;
            inactiveMap.OldColor = Color.Black;
            inactiveMap.NewColor = Color.FromArgb(128, _manager.InactiveTextColor);

            // Create remap attributes for use by button
            _activeAttr.SetRemapTable(new ColorMap[]{activeMap}, ColorAdjustType.Bitmap);
            _inactiveAttr.SetRemapTable(new ColorMap[]{inactiveMap}, ColorAdjustType.Bitmap);
        }

        protected override void OnAddMaximizeInterface()
        {
            if (_maxButton != null)
            {
                _maxButton.Size = new Size(_buttonWidth, _buttonHeight);

                // Shows border all the time and not just when mouse is over control
                _maxButton.PopupStyle = false;

                // Define the fixed remapping
                _maxButton.ImageAttributes = _inactiveAttr;
                
                // Reduce the lines drawing
                _buttonOffset += (_buttonWidth + _insetButton);
            }
        }

        protected override void OnRemoveMaximizeInterface()
        {
            // Reduce the lines drawing
            _buttonOffset -= (_buttonWidth + _insetButton);
        }

        protected override void CreateButtons()
        {
            // Define the ImageList and which ImageIndex to show initially
            _closeButton = new InertButton(_images, (int)ImageIndex.Close);
            _hideButton = new InertButton(_images, (int)ImageIndex.AutoHide);
			
            _closeButton.Size = new Size(_buttonWidth, _buttonHeight);
            _hideButton.Size = new Size(_buttonWidth, _buttonHeight);

            // Shows border all the time and not just when mouse is over control
            _closeButton.PopupStyle = false;
            _hideButton.PopupStyle = false;

            // Define the fixed remapping
            _closeButton.ImageAttributes = _activeAttr;
            _hideButton.ImageAttributes = _activeAttr;

            // Add to the display
            Controls.Add(_closeButton);
            Controls.Add(_hideButton);
            
            // Let base class perform common actions
            base.CreateButtons();
        }

        protected override void UpdateAutoHideImage()
        {
            if (_pinnedImage)
                _hideButton.ImageIndexEnabled = (int)ImageIndex.AutoShow;
            else
                _hideButton.ImageIndexEnabled = (int)ImageIndex.AutoHide;
        }
        
        protected override void UpdateMaximizeImage()
        {
            if (_showCloseButton)