Move ShiftUI source code to ShiftOS

This'll be a lot easier to work on.

1 files changed, 729 insertions, 0 deletions

diff --git a/source/ShiftUI/Widgets/Label.cs b/source/ShiftUI/Widgets/Label.cs
new file mode 100644
index 0000000..4bd4515
--- /dev/null
+++ b/source/ShiftUI/Widgets/Label.cs
@@ -0,0 +1,729 @@
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+// Copyright (c) 2004-2006 Novell, Inc.
+//
+// Authors:
+//	Jordi Mas i Hernandez, [email protected]
+//	Peter Bartok, [email protected]
+//
+//
+
+// COMPLETE
+
+using System.ComponentModel;
+using System.ComponentModel.Design;
+using System.Drawing;
+using System.Drawing.Text;
+using System.Drawing.Imaging;
+using System.Runtime.InteropServices;
+using ShiftUI.Theming;
+using System;
+
+namespace ShiftUI
+{
+	[DefaultProperty ("Text")]
+	//[Designer ("ShiftUI.Design.LabelDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
+	[ClassInterface (ClassInterfaceType.AutoDispatch)]
+	[ComVisible (true)]
+	[ToolboxItem ("ShiftUI.Design.AutoSizeToolboxItem," + Consts.AssemblySystem_Design)]
+	[DefaultBindingProperty ("Text")]
+    [ToolboxWidget]
+    public class Label : Widget
+	{
+		private bool autosize;
+		private bool auto_ellipsis;
+		private Image image;
+		private bool render_transparent;
+		private FlatStyle flat_style;
+		private bool use_mnemonic;
+		private int image_index = -1;
+		private string image_key = string.Empty;
+		private ImageList image_list;
+		internal ContentAlignment image_align;
+		internal StringFormat string_format;
+		internal ContentAlignment text_align;
+		static SizeF req_witdthsize = new SizeF (0,0);
+
+		#region Events
+		static object AutoSizeChangedEvent = new object ();
+		static object TextAlignChangedEvent = new object ();
+
+		[Browsable (true)]
+		//[EditorBrowsable (EditorBrowsableState.Always)]
+		public new event EventHandler AutoSizeChanged {
+			add { Events.AddHandler (AutoSizeChangedEvent, value); }
+			remove { Events.RemoveHandler (AutoSizeChangedEvent, value); }
+		}
+
+		[Browsable(false)]
+		//[EditorBrowsable(EditorBrowsableState.Never)]
+		public new event EventHandler BackgroundImageChanged {
+			add { base.BackgroundImageChanged += value; }
+			remove { base.BackgroundImageChanged -= value; }
+		}
+
+		[Browsable (false)]
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		public new event EventHandler BackgroundImageLayoutChanged {
+			add { base.BackgroundImageLayoutChanged += value; }
+			remove { base.BackgroundImageLayoutChanged -= value; }
+		}
+
+		[Browsable(false)]
+		//[EditorBrowsable(EditorBrowsableState.Never)]
+		public new event EventHandler ImeModeChanged {
+			add { base.ImeModeChanged += value; }
+			remove { base.ImeModeChanged -= value; }
+		}
+
+		[Browsable(false)]
+		//[EditorBrowsable(EditorBrowsableState.Never)]
+		public new event KeyEventHandler KeyDown {
+			add { base.KeyDown += value; }
+			remove { base.KeyDown -= value; }
+		}
+
+		[Browsable(false)]
+		//[EditorBrowsable(EditorBrowsableState.Never)]
+		public new event KeyPressEventHandler KeyPress {
+			add { base.KeyPress += value; }
+			remove { base.KeyPress -= value; }
+		}
+
+		[Browsable(false)]
+		//[EditorBrowsable(EditorBrowsableState.Never)]
+		public new event KeyEventHandler KeyUp {
+			add { base.KeyUp += value; }
+			remove { base.KeyUp -= value; }
+		}
+
+		[Browsable(false)]
+		//[EditorBrowsable(EditorBrowsableState.Never)]
+		public new event EventHandler TabStopChanged {
+			add { base.TabStopChanged += value; }
+			remove { base.TabStopChanged -= value; }
+		}
+
+		public event EventHandler TextAlignChanged {
+			add { Events.AddHandler (TextAlignChangedEvent, value); }
+			remove { Events.RemoveHandler (TextAlignChangedEvent, value); }
+		}
+		#endregion
+
+		public Label ()
+		{
+			// Defaults in the Spec
+			autosize = false;
+			TabStop = false;
+			string_format = new StringFormat();
+			string_format.FormatFlags = StringFormatFlags.LineLimit;
+			TextAlign = ContentAlignment.TopLeft;
+			image = null;
+			UseMnemonic = true;
+			image_list = null;
+			image_align = ContentAlignment.MiddleCenter;
+			SetUseMnemonic (UseMnemonic);
+			flat_style = FlatStyle.Standard;
+
+			SetStyle (Widgetstyles.Selectable, false);
+			SetStyle (Widgetstyles.ResizeRedraw | 
+				Widgetstyles.UserPaint | 
+				Widgetstyles.AllPaintingInWmPaint |
+				Widgetstyles.SupportsTransparentBackColor |
+				Widgetstyles.OptimizedDoubleBuffer
+				, true);
+			
+			HandleCreated += new EventHandler (OnHandleCreatedLB);
+		}
+
+		#region Public Properties
+
+		[DefaultValue (false)]
+		[Browsable (true)]
+		//[EditorBrowsable (EditorBrowsableState.Always)]
+		public bool AutoEllipsis {
+			get { return this.auto_ellipsis; }
+			set
+			{
+				if (this.auto_ellipsis != value) {
+					this.auto_ellipsis = value;
+
+					if (this.auto_ellipsis)
+						string_format.Trimming = StringTrimming.EllipsisCharacter;
+					else
+						string_format.Trimming = StringTrimming.Character;
+
+					if (Parent != null)
+						Parent.PerformLayout (this, "AutoEllipsis");
+					this.Invalidate ();
+				}
+			}
+		}
+
+		[Browsable (true)]
+		//[DesignerSerializationVisibility (DesignerSerializationVisibility.Visible)]
+		//[EditorBrowsable (EditorBrowsableState.Always)]
+		[DefaultValue(false)]
+		[Localizable(true)]
+		[RefreshProperties(RefreshProperties.All)]
+		public override bool AutoSize {
+			get { return autosize; }
+			set {
+				if (autosize == value)
+					return;
+
+				base.SetAutoSizeMode (AutoSizeMode.GrowAndShrink);
+				base.AutoSize = value;
+				autosize = value;
+				CalcAutoSize ();
+				Invalidate ();
+
+				OnAutoSizeChanged (EventArgs.Empty);
+			}
+		}
+
+		[Browsable(false)]
+		//[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
+		//[EditorBrowsable(EditorBrowsableState.Never)]
+		public override Image BackgroundImage {
+			get { return base.BackgroundImage; }
+			set {
+				base.BackgroundImage = value;
+				Invalidate ();
+			}
+		}
+
+		[Browsable (false)]
+		//[EditorBrowsable (EditorBrowsableState.Never)]
+		public override ImageLayout BackgroundImageLayout {
+			get { return base.BackgroundImageLayout; }
+			set { base.BackgroundImageLayout = value; }
+		}
+	
+		[DefaultValue(BorderStyle.None)]
+		[DispId(-504)]
+		public virtual BorderStyle BorderStyle {
+			get { return InternalBorderStyle; }
+			set { InternalBorderStyle = value; }
+		}
+
+		protected override CreateParams CreateParams {
+			get { 
+				CreateParams create_params = base.CreateParams;
+					
+				if (BorderStyle != BorderStyle.Fixed3D)
+					return create_params;
+					
+				create_params.ExStyle &= ~(int) WindowExStyles.WS_EX_CLIENTEDGE;
+				create_params.ExStyle |= (int)WindowExStyles.WS_EX_STATICEDGE;
+					
+				return create_params;
+			}
+		}
+
+		protected override ImeMode DefaultImeMode {
+			get { return ImeMode.Disable;}
+		}
+
+		protected override Padding DefaultMargin {
+			get { return new Padding (3, 0, 3, 0); }
+		}
+
+		protected override Size DefaultSize {
+			get { return ThemeElements.LabelPainter.DefaultSize; }
+		}
+
+		[DefaultValue(FlatStyle.Standard)]
+		public FlatStyle FlatStyle {
+			get { return flat_style; }
+			set {
+				if (!Enum.IsDefined (typeof (FlatStyle), value))
+					throw new InvalidEnumArgumentException (string.Format("Enum argument value '{0}' is not valid for FlatStyle", value));
+
+				if (flat_style == value)
+					return;
+
+				flat_style = value;
+				if (Parent != null)
+					Parent.PerformLayout (this, "FlatStyle");
+				Invalidate ();
+			}
+		}
+
+		[Localizable(true)]
+		public Image Image {
+			get {
+				if (this.image != null)
+					return this.image;
+
+				if (this.image_index >= 0)
+					if (this.image_list != null)
+						return this.image_list.Images[this.image_index];
+
+				if (!string.IsNullOrEmpty (this.image_key))
+					if (this.image_list != null)
+						return this.image_list.Images[this.image_key];
+
+				return null;
+			}
+			set {
+				if (this.image != value) {
+					this.image = value;
+					this.image_index = -1;
+					this.image_key = string.Empty;
+					this.image_list = null;
+
+					if (this.AutoSize && this.Parent != null)
+						this.Parent.PerformLayout (this, "Image");
+
+					Invalidate ();
+				}
+			}
+		}
+
+		[DefaultValue(ContentAlignment.MiddleCenter)]
+		[Localizable(true)]
+		public ContentAlignment ImageAlign {
+			get { return image_align; }
+			set {
+				if (!Enum.IsDefined (typeof (ContentAlignment), value))
+					throw new InvalidEnumArgumentException (string.Format("Enum argument value '{0}' is not valid for ContentAlignment", value));
+
+				if (image_align == value)
+					return;
+
+				image_align = value;
+				Invalidate ();
+			}
+		}
+
+		[DefaultValue (-1)]
+		//[Editor ("ShiftUI.Design.ImageIndexEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
+		[Localizable (true)]
+		[TypeConverter (typeof (ImageIndexConverter))]
+		[RefreshProperties (RefreshProperties.Repaint)]
+		public int ImageIndex {
+			get { 
+				if (ImageList == null) {
+					return -1;
+				}
+					
+				if (image_index >= image_list.Images.Count) {
+					return image_list.Images.Count - 1;
+				}
+					
+				return image_index;
+			}
+			set {
+
+				if (value < -1)
+					throw new ArgumentException ();
+
+				if (this.image_index != value) {
+					this.image_index = value;
+					this.image = null;
+					this.image_key = string.Empty;
+					Invalidate ();
+				}
+			}
+		}
+
+		[Localizable (true)]
+		[DefaultValue ("")]
+		//[Editor ("ShiftUI.Design.ImageIndexEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
+		[RefreshProperties (RefreshProperties.Repaint)]
+		[TypeConverter (typeof (ImageKeyConverter))]
+		public string ImageKey {
+			get { return this.image_key; }
+			set {
+				if (this.image_key != value) {
+					this.image = null;
+					this.image_index = -1;
+					this.image_key = value;
+					this.Invalidate ();
+				}
+			}
+		}
+
+		[DefaultValue(null)]
+		[RefreshProperties (RefreshProperties.Repaint)]
+		public ImageList ImageList {
+			get { return image_list;}
+			set {
+				if (image_list == value)
+					return;
+					
+				image_list = value;
+
+				if (image_list != null && image_index !=-1)
+					Image = null;
+
+				Invalidate ();
+			}
+		}
+
+		[Browsable(false)]
+		//[EditorBrowsable(EditorBrowsableState.Never)]
+		public new ImeMode ImeMode {
+			get { return base.ImeMode; }
+			set { base.ImeMode = value; }
+		}
+
+		internal virtual Size InternalGetPreferredSize (Size proposed)
+		{
+			Size size;
+
+			if (Text == string.Empty) {
+				size = new Size (0, Font.Height);
+			} else {
+				size = Size.Ceiling (TextRenderer.MeasureString (Text, Font, req_witdthsize, string_format));
+				size.Width += 3;
+			}
+
+			size.Width += Padding.Horizontal;
+			size.Height += Padding.Vertical;
+			
+			if (!use_compatible_text_rendering)
+				return size;
+
+			if (border_style == BorderStyle.None)
+				size.Height += 3;
+			else
+				size.Height += 6;
+			
+			return size;
+		}
+
+		public override	Size GetPreferredSize (Size proposedSize)
+		{
+			return InternalGetPreferredSize (proposedSize);
+		}
+
+		[Browsable(false)]
+		//[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Hidden)]
+		//[EditorBrowsable(EditorBrowsableState.Advanced)]
+		public virtual int PreferredHeight {
+			get { return InternalGetPreferredSize (Size.Empty).Height; }
+		}
+
+		[Browsable(false)]
+		//[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Hidden)]
+		//[EditorBrowsable(EditorBrowsableState.Advanced)]
+		public virtual int PreferredWidth {
+			get { return InternalGetPreferredSize (Size.Empty).Width; }
+		}
+
+		[Obsolete ("This property has been deprecated.  Use BackColor instead.")]
+		protected virtual bool RenderTransparent {
+			get { return render_transparent; }
+			set { render_transparent = value;}
+		}
+			
+		[Browsable(false)]
+		[DefaultValue(false)]
+		//[EditorBrowsable(EditorBrowsableState.Never)]
+		public new bool TabStop  {
+			get { return base.TabStop; }
+			set { base.TabStop = value; }
+		}
+
+		[DefaultValue(ContentAlignment.TopLeft)]
+		[Localizable(true)]
+		public virtual ContentAlignment TextAlign {
+			get { return text_align; }
+
+			set {
+				if (!Enum.IsDefined (typeof (ContentAlignment), value))
+					throw new InvalidEnumArgumentException (string.Format("Enum argument value '{0}' is not valid for ContentAlignment", value));
+
+				if (text_align != value) {
+					text_align = value;
+					switch (value) {
+					case ContentAlignment.BottomLeft:
+						string_format.LineAlignment = StringAlignment.Far;
+						string_format.Alignment = StringAlignment.Near;
+						break;
+					case ContentAlignment.BottomCenter:
+						string_format.LineAlignment = StringAlignment.Far;
+						string_format.Alignment = StringAlignment.Center;
+						break;
+					case ContentAlignment.BottomRight:
+						string_format.LineAlignment = StringAlignment.Far;
+						string_format.Alignment = StringAlignment.Far;
+						break;
+					case ContentAlignment.TopLeft:
+						string_format.LineAlignment = StringAlignment.Near;
+						string_format.Alignment = StringAlignment.Near;
+						break;
+					case ContentAlignment.TopCenter:
+						string_format.LineAlignment = StringAlignment.Near;
+						string_format.Alignment = StringAlignment.Center;
+						break;
+					case ContentAlignment.TopRight:
+						string_format.LineAlignment = StringAlignment.Near;
+						string_format.Alignment = StringAlignment.Far;
+						break;
+					case ContentAlignment.MiddleLeft:
+						string_format.LineAlignment = StringAlignment.Center;
+						string_format.Alignment = StringAlignment.Near;
+						break;
+					case ContentAlignment.MiddleRight:
+						string_format.LineAlignment = StringAlignment.Center;
+						string_format.Alignment = StringAlignment.Far;
+						break;
+					case ContentAlignment.MiddleCenter:
+						string_format.LineAlignment = StringAlignment.Center;
+						string_format.Alignment = StringAlignment.Center;
+						break;
+					default:
+						break;
+					}
+
+					OnTextAlignChanged (EventArgs.Empty);
+					Invalidate ();
+				}
+			}
+		}
+
+		[DefaultValue(true)]
+		public bool UseMnemonic {
+			get { return use_mnemonic; }
+			set {
+				if (use_mnemonic != value) {
+					use_mnemonic = value;
+					SetUseMnemonic (use_mnemonic);
+					Invalidate ();
+				}
+			}
+		}
+
+		#endregion
+
+		#region Public Methods
+
+		protected Rectangle CalcImageRenderBounds (Image image, Rectangle r, ContentAlignment align)
+		{
+			Rectangle rcImageClip = r;
+			rcImageClip.Inflate (-2,-2);
+
+			int X = r.X;
+			int Y = r.Y;
+
+			if (align == ContentAlignment.TopCenter ||
+				align == ContentAlignment.MiddleCenter ||
+				align == ContentAlignment.BottomCenter) {
+				X += (r.Width - image.Width) / 2;
+			} else if (align == ContentAlignment.TopRight ||
+				align == ContentAlignment.MiddleRight||
+				align == ContentAlignment.BottomRight) {
+				X += (r.Width - image.Width);
+			}
+
+			if( align == ContentAlignment.BottomCenter ||
+				align == ContentAlignment.BottomLeft ||
+				align == ContentAlignment.BottomRight) {
+				Y += r.Height - image.Height;
+			} else if(align == ContentAlignment.MiddleCenter ||
+					align == ContentAlignment.MiddleLeft ||
+					align == ContentAlignment.MiddleRight) {
+				Y += (r.Height - image.Height) / 2;
+			}
+
+			rcImageClip.X = X;
+			rcImageClip.Y = Y;
+			rcImageClip.Width = image.Width;
+			rcImageClip.Height = image.Height;
+
+			return rcImageClip;
+		}
+
+		protected override AccessibleObject CreateAccessibilityInstance ()
+		{
+			return base.CreateAccessibilityInstance ();
+		}
+
+		protected override void Dispose(bool disposing)
+		{
+			base.Dispose (disposing);
+
+			if (disposing)
+				string_format.Dispose ();
+		}
+
+		protected internal void DrawImage (Graphics g, Image image, Rectangle r, ContentAlignment align)
+		{
+ 			if (image == null || g == null)
+				return;
+
+			Rectangle rcImageClip = CalcImageRenderBounds (image, r, align);
+
+			if (Enabled)
+				g.DrawImage (image, rcImageClip.X, rcImageClip.Y, rcImageClip.Width, rcImageClip.Height);
+			else
+				WidgetPaint.DrawImageDisabled (g, image, rcImageClip.X, rcImageClip.Y, BackColor);
+		}
+
+		protected override void OnEnabledChanged (EventArgs e)
+		{
+			base.OnEnabledChanged (e);
+		}
+
+		protected override void OnFontChanged (EventArgs e)
+		{
+			base.OnFontChanged (e);
+			if (autosize)
+				CalcAutoSize();
+			Invalidate ();
+		}
+
+		protected override void OnPaddingChanged (EventArgs e)
+		{
+			base.OnPaddingChanged (e);
+		}
+
+		protected override void OnPaint (PaintEventArgs e)
+		{
+			ThemeElements.LabelPainter.Draw (e.Graphics, ClientRectangle, this);
+			base.OnPaint(e);
+		}
+
+		protected override void OnParentChanged (EventArgs e)
+		{
+			base.OnParentChanged (e);
+		}
+
+		protected override void OnRightToLeftChanged (EventArgs e)
+		{
+			base.OnRightToLeftChanged (e);
+		}
+
+		protected virtual void OnTextAlignChanged (EventArgs e)
+		{
+			EventHandler eh = (EventHandler)(Events [TextAlignChangedEvent]);
+			if (eh != null)
+				eh (this, e);
+		}
+
+		protected override void OnTextChanged (EventArgs e)
+		{
+			base.OnTextChanged (e);
+			if (autosize)
+				CalcAutoSize ();
+			Invalidate ();
+		}
+
+		protected override void OnVisibleChanged (EventArgs e)
+		{
+			base.OnVisibleChanged (e);
+		}
+
+		protected override bool ProcessMnemonic (char charCode)
+		{
+			if (IsMnemonic (charCode, Text)) {
+				// Select item next in line in tab order
+				if (this.Parent != null)
+					Parent.SelectNextWidget(this, true, false, false, false);
+				return true;
+			}
+			
+			return base.ProcessMnemonic (charCode);
+		}
+
+		protected override void SetBoundsCore (int x, int y, int width, int height, BoundsSpecified specified)
+		{
+			base.SetBoundsCore (x, y, width, height, specified);
+		}
+
+		public override string ToString()
+		{
+			return base.ToString () + ", Text: " + Text;
+		}
+
+		protected override void WndProc (ref Message m)
+		{
+			switch ((Msg) m.Msg) {
+			case Msg.WM_DRAWITEM:
+				m.Result = (IntPtr)1;
+				break;
+			default:
+				base.WndProc (ref m);
+				break;
+			}
+		}
+
+		#endregion Public Methods
+
+		#region Private Methods
+
+		private void CalcAutoSize ()
+		{
+			if (!AutoSize)
+				return;
+
+			Size s = InternalGetPreferredSize (Size.Empty);
+			
+			SetBounds (Left, Top, s.Width, s.Height, BoundsSpecified.Size);
+		}
+
+		private void OnHandleCreatedLB (Object o, EventArgs e)
+		{
+			if (autosize)
+				CalcAutoSize ();
+		}
+
+		private void SetUseMnemonic (bool use)
+		{
+			if (use)
+				string_format.HotkeyPrefix = HotkeyPrefix.Show;
+			else
+				string_format.HotkeyPrefix = HotkeyPrefix.None;
+		}
+
+		#endregion Private Methods
+		[DefaultValue (false)]
+		public bool UseCompatibleTextRendering {
+			get { return use_compatible_text_rendering; }
+			set { use_compatible_text_rendering = value; }
+		}
+
+		[SettingsBindable (true)]
+		//[Editor ("System.ComponentModel.Design.MultilineStringEditor, " + Consts.AssemblySystem_Design,
+		//	 typeof (System.Drawing.Design.UITypeEditor))]
+		public override string Text {
+			get { return base.Text; }
+			set { base.Text = value; }
+		}
+
+		protected override void OnMouseEnter (EventArgs e)
+		{
+			base.OnMouseEnter (e);
+		}
+
+		protected override void OnMouseLeave (EventArgs e)
+		{
+			base.OnMouseLeave (e);
+		}
+
+		protected override void OnHandleDestroyed (EventArgs e)
+		{
+			base.OnHandleDestroyed (e);
+		}
+	}
+}