WinFormsUI/Docking/VS2005AutoHideStrip.cs

using System;
using System.Drawing;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.ComponentModel;

namespace WeifenLuo.WinFormsUI.Docking
{
    internal class VS2005AutoHideStrip : AutoHideStripBase
    {
        private class TabVS2005 : Tab
        {
            internal TabVS2005(IDockContent content)
                : base(content)
            {
            }

            private int m_tabX = 0;
            public int TabX
            {
                get { return m_tabX; }
                set { m_tabX = value; }
            }

            private int m_tabWidth = 0;
            public int TabWidth
            {
                get { return m_tabWidth; }
                set { m_tabWidth = value; }
            }

        }

        private const int _ImageHeight = 16;
        private const int _ImageWidth = 16;
        private const int _ImageGapTop = 2;
        private const int _ImageGapLeft = 4;
        private const int _ImageGapRight = 2;
        private const int _ImageGapBottom = 2;
        private const int _TextGapLeft = 0;
        private const int _TextGapRight = 0;
        private const int _TabGapTop = 3;
        private const int _TabGapLeft = 4;
        private const int _TabGapBetween = 10;

        #region Customizable Properties
        public Font TextFont
        {
            get { return DockPanel.Skin.AutoHideStripSkin.TextFont; }
        }

        private static StringFormat _stringFormatTabHorizontal;
        private StringFormat StringFormatTabHorizontal
        {
            get
            {
                if (_stringFormatTabHorizontal == null)
                {
                    _stringFormatTabHorizontal = new StringFormat();
                    _stringFormatTabHorizontal.Alignment = StringAlignment.Near;
                    _stringFormatTabHorizontal.LineAlignment = StringAlignment.Center;
                    _stringFormatTabHorizontal.FormatFlags = StringFormatFlags.NoWrap;
                    _stringFormatTabHorizontal.Trimming = StringTrimming.None;
                }

                if (RightToLeft == RightToLeft.Yes)
                    _stringFormatTabHorizontal.FormatFlags |= StringFormatFlags.DirectionRightToLeft;
                else
                    _stringFormatTabHorizontal.FormatFlags &= ~StringFormatFlags.DirectionRightToLeft;

                return _stringFormatTabHorizontal;
            }
        }

        private static StringFormat _stringFormatTabVertical;
        private StringFormat StringFormatTabVertical
        {
            get
            {
                if (_stringFormatTabVertical == null)
                {
                    _stringFormatTabVertical = new StringFormat();
                    _stringFormatTabVertical.Alignment = StringAlignment.Near;
                    _stringFormatTabVertical.LineAlignment = StringAlignment.Center;
                    _stringFormatTabVertical.FormatFlags = StringFormatFlags.NoWrap | StringFormatFlags.DirectionVertical;
                    _stringFormatTabVertical.Trimming = StringTrimming.None;
                }
                if (RightToLeft == RightToLeft.Yes)
                    _stringFormatTabVertical.FormatFlags |= StringFormatFlags.DirectionRightToLeft;
                else
                    _stringFormatTabVertical.FormatFlags &= ~StringFormatFlags.DirectionRightToLeft;

                return _stringFormatTabVertical;
            }
        }

        private static int ImageHeight
        {
            get { return _ImageHeight; }
        }

        private static int ImageWidth
        {
            get { return _ImageWidth; }
        }

        private static int ImageGapTop
        {
            get { return _ImageGapTop; }
        }

        private static int ImageGapLeft
        {
            get { return _ImageGapLeft; }
        }

        private static int ImageGapRight
        {
            get { return _ImageGapRight; }
        }

        private static int ImageGapBottom
        {
            get { return _ImageGapBottom; }
        }

        private static int TextGapLeft
        {
            get { return _TextGapLeft; }
        }

        private static int TextGapRight
        {
            get { return _TextGapRight; }
        }

        private static int TabGapTop
        {
            get { return _TabGapTop; }
        }

        private static int TabGapLeft
        {
            get { return _TabGapLeft; }
        }

        private static int TabGapBetween
        {
            get { return _TabGapBetween; }
        }

        private static Pen PenTabBorder
        {
            get { return SystemPens.GrayText; }
        }
        #endregion

        private static Matrix _matrixIdentity = new Matrix();
        private static Matrix MatrixIdentity
        {
            get { return _matrixIdentity; }
        }

        private static DockState[] _dockStates;
        private static DockState[] DockStates
        {
            get
            {
                if (_dockStates == null)
                {
                    _dockStates = new DockState[4];
                    _dockStates[0] = DockState.DockLeftAutoHide;
                    _dockStates[1] = DockState.DockRightAutoHide;
                    _dockStates[2] = DockState.DockTopAutoHide;
                    _dockStates[3] = DockState.DockBottomAutoHide;
                }
                return _dockStates;
            }
        }

        private static GraphicsPath _graphicsPath;
        internal static GraphicsPath GraphicsPath
        {
            get
            {
                if (_graphicsPath == null)
                    _graphicsPath = new GraphicsPath();

                return _graphicsPath;
            }
        }

        public VS2005AutoHideStrip(DockPanel panel)
            : base(panel)
        {
            SetStyle(ControlStyles.ResizeRedraw |
                ControlStyles.UserPaint |
                ControlStyles.AllPaintingInWmPaint |
                ControlStyles.OptimizedDoubleBuffer, true);
            BackColor = SystemColors.ControlLight;
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            try
            {
                Graphics g = e.Graphics;

                Color startColor = DockPanel.Skin.AutoHideStripSkin.DockStripGradient.StartColor;
                Color endColor = DockPanel.Skin.AutoHideStripSkin.DockStripGradient.EndColor;
                LinearGradientMode gradientMode = DockPanel.Skin.AutoHideStripSkin.DockStripGradient.LinearGradientMode;
                using (LinearGradientBrush brush = new LinearGradientBrush(ClientRectangle, startColor, endColor, gradientMode))
                {
                    g.FillRectangle(brush, ClientRectangle);
                }

                DrawTabStrip(g);
            }
            catch (Exception)
            {
                throw;
            }
        }

        protected override void OnLayout(LayoutEventArgs levent)
        {
            CalculateTabs();
            base.OnLayout(levent);
        }

        private void DrawTabStrip(Graphics g)
        {
            DrawTabStrip(g, DockState.DockTopAutoHide);
            DrawTabStrip(g, DockState.DockBottomAutoHide);
            DrawTabStrip(g, DockState.DockLeftAutoHide);
            DrawTabStrip(g, DockState.DockRightAutoHide);
        }

        private void DrawTabStrip(Graphics g, DockState dockState)
        {
            try
            {
                Rectangle rectTabStrip = GetLogicalTabStripRectangle(dockState);

                if (rectTabStrip.IsEmpty)
                    return;

                Matrix matrixIdentity = g.Transform;
                if (dockState == DockState.DockLeftAutoHide || dockState == DockState.DockRightAutoHide)
                {
                    Matrix matrixRotated = new Matrix();
                    matrixRotated.RotateAt(90, new PointF((float)rectTabStrip.X + (float)rectTabStrip.Height / 2,
                        (float)rectTabStrip.Y + (float)rectTabStrip.Height / 2));
                    g.Transform = matrixRotated;
                }

                foreach (Pane pane in GetPanes(dockState))
                {
                    foreach (TabVS2005 tab in pane.AutoHideTabs)
                        DrawTab(g, tab);
                }
                g.Transform = matrixIdentity;
            }
            catch (Exception)
            {
                throw;
            }
        }

        private void CalculateTabs()
        {
            CalculateTabs(DockState.DockTopAutoHide);
            CalculateTabs(DockState.DockBottomAutoHide);
            CalculateTabs(DockState.DockLeftAutoHide);
            CalculateTabs(DockState.DockRightAutoHide);
        }

        private void CalculateTabs(DockState dockState)
        {
            try
            {
                Rectangle rectTabStrip = GetLogicalTabStripRectangle(dockState);

                int imageHeight = rectTabStrip.Height - ImageGapTop - ImageGapBottom;
                int imageWidth = ImageWidth;
                if (imageHeight > ImageHeight)
                    imageWidth = ImageWidth * (imageHeight / ImageHeight);

                int x = TabGapLeft + rectTabStrip.X;
                foreach (Pane pane in GetPanes(dockState))
                {
                    foreach (TabVS2005 tab in pane.AutoHideTabs)
                    {
                        int width = imageWidth + ImageGapLeft + ImageGapRight +
                            TextRenderer.MeasureText(tab.Content.DockHandler.TabText, TextFont).Width +
                            TextGapLeft + TextGapRight;
                        tab.TabX = x;
                        tab.TabWidth = width;
                        x += width;
                    }

                    x += TabGapBetween;
                }
            }
            catch (Exception)
            {
                throw;
            }
        }

        private Rectangle RtlTransform(Rectangle rect, DockState dockState)
        {
            try
            {
                Rectangle rectTransformed;
                if (dockState == DockState.DockLeftAutoHide || dockState == DockState.DockRightAutoHide)
                    rectTransformed = rect;
                else
                    rectTransformed = DrawHelper.RtlTransform(this, rect);

                return rectTransformed;
            }
            catch (Exception)
            {
                throw;
            }
        }

        private GraphicsPath GetTabOutline(TabVS2005 tab, bool transformed, bool rtlTransform)
        {
            try
            {
                DockState dockState = tab.Content.DockHandler.DockState;
                Rectangle rectTab = GetTabRectangle(tab, transformed);
                if (rtlTransform)
                    rectTab = RtlTransform(rectTab, dockState);
                bool upTab = (dockState == DockState.DockLeftAutoHide || dockState == DockState.DockBottomAutoHide);
                DrawHelper.GetRoundedCornerTab(GraphicsPath, rectTab, upTab);

                return GraphicsPath;
            }
            catch (Exception)
            {
                throw;
            }
        }

        private void DrawTab(Graphics g, TabVS2005 tab)
        {
            try
            {
                Rectangle rectTabOrigin = GetTabRectangle(tab);
                if (rectTabOrigin.IsEmpty)
                    return;

                DockState dockState = tab.Content.DockHandler.DockState;
                IDockContent content = tab.Content;

                GraphicsPath path = GetTabOutline(tab, false, true);

                Color startColor = DockPanel.Skin.AutoHideStripSkin.TabGradient.StartColor;
                Color endColor = DockPanel.Skin.AutoHideStripSkin.TabGradient.EndColor;
                LinearGradientMode gradientMode = DockPanel.Skin.AutoHideStripSkin.TabGradient.LinearGradientMode;
                g.FillPath(new LinearGradientBrush(rectTabOrigin, startColor, endColor, gradientMode), path);
                g.DrawPath(PenTabBorder, path);

                // Set no rotate for drawing icon and text
                Matrix matrixRotate = g.Transform;
                g.Transform = MatrixIdentity;

                // Draw the icon
                Rectangle rectImage = rectTabOrigin;
                rectImage.X += ImageGapLeft;
                rectImage.Y += ImageGapTop;
                int imageHeight = rectTabOrigin.Height - ImageGapTop - ImageGapBottom;
                int imageWidth = ImageWidth;
                if (imageHeight > ImageHeight)
                    imageWidth = ImageWidth * (imageHeight / ImageHeight);
                rectImage.Height = imageHeight;
                rectImage.Width = imageWidth;
                rectImage = GetTransformedRectangle(dockState, rectImage);

                if (dockState == DockState.DockLeftAutoHide || dockState == DockState.DockRightAutoHide)
                {
                    // The DockState is DockLeftAutoHide or DockRightAutoHide, so rotate the image 90 degrees to the right. 
                    Rectangle rectTransform = RtlTransform(rectImage, dockState);
                    Point[] rotationPoints =
                { 
                    new Point(rectTransform.X + rectTransform.Width, rectTransform.Y), 
                    new Point(rectTransform.X + rectTransform.Width, rectTransform.Y + rectTransform.Height), 
                    new Point(rectTransform.X, rectTransform.Y)
                };

                    using (Icon rotatedIcon = new Icon(((Form)content).Icon, 16, 16))
                    {
                        g.DrawImage(rotatedIcon.ToBitmap(), rotationPoints);
                    }
                }
                else
                {
                    // Draw the icon normally without any rotation.
                    g.DrawIcon(((Form)content).Icon, RtlTransform(rectImage, dockState));
                }

                // Draw the text
                Rectangle rectText = rectTabOrigin;
                rectText.X += ImageGapLeft + imageWidth + ImageGapRight + TextGapLeft;
                rectText.Width -= ImageGapLeft + imageWidth + ImageGapRight + TextGapLeft;
                rectText = RtlTransform(GetTransformedRectangle(dockState, rectText), dockState);

                Color textColor = DockPanel.Skin.AutoHideStripSkin.TabGradient.TextColor;

                if (dockState == DockState.DockLeftAutoHide || dockState == DockState.DockRightAutoHide)
                    g.DrawString(content.DockHandler.TabText, TextFont, new SolidBrush(textColor), rectText, StringFormatTabVertical);
                else
                    g.DrawString(content.DockHandler.TabText, TextFont, new SolidBrush(textColor), rectText, StringFormatTabHorizontal);

                // Set rotate back
                g.Transform = matrixRotate;
            }
            catch (Exception)
            {
                throw;
            }
        }

        private Rectangle GetLogicalTabStripRectangle(DockState dockState)
        {
            return GetLogicalTabStripRectangle(dockState, false);
        }

        private Rectangle GetLogicalTabStripRectangle(DockState dockState, bool transformed)
        {
            try
            {
                if (!DockHelper.IsDockStateAutoHide(dockState))
                    return Rectangle.Empty;

                int leftPanes = GetPanes(DockState.DockLeftAutoHide).Count;
                int rightPanes = GetPanes(DockState.DockRightAutoHide).Count;
                int topPanes = GetPanes(DockState.DockTopAutoHide).Count;
                int bottomPanes = GetPanes(DockState.DockBottomAutoHide).Count;

                int x, y, width, height;

                height = MeasureHeight();
                if (dockState == DockState.DockLeftAutoHide && leftPanes > 0)
                {
                    x = 0;
                    y = (topPanes == 0) ? 0 : height;
                    width = Height - (topPanes == 0 ? 0 : height) - (bottomPanes == 0 ? 0 : height);
                }
                else if (dockState == DockState.DockRightAutoHide && rightPanes > 0)
                {
                    x = Width - height;
                    if (leftPanes != 0 && x < height)
                        x = height;
                    y = (topPanes == 0) ? 0 : height;
                    width = Height - (topPanes == 0 ? 0 : height) - (bottomPanes == 0 ? 0 : height);
                }
                else if (dockState == DockState.DockTopAutoHide && topPanes > 0)
                {
                    x = leftPanes == 0 ? 0 : height;
                    y = 0;
                    width = Width - (leftPanes == 0 ? 0 : height) - (rightPanes == 0 ? 0 : height);
                }
                else if (dockState == DockState.DockBottomAutoHide && bottomPanes > 0)
                {
                    x = leftPanes == 0 ? 0 : height;
                    y = Height - height;
                    if (topPanes != 0 && y < height)
                        y = height;
                    width = Width - (leftPanes == 0 ? 0 : height) - (rightPanes == 0 ? 0 : height);
                }
                else
                    return Rectangle.Empty;

                if (!transformed)
                    return new Rectangle(x, y, width, height);
                else
                    return GetTransformedRectangle(dockState, new Rectangle(x, y, width, height));
            }
            catch (Exception)
            {
                throw;
            }
        }

        private Rectangle GetTabRectangle(TabVS2005 tab)
        {
            return GetTabRectangle(tab, false);
        }

        private Rectangle GetTabRectangle(TabVS2005 tab, bool transformed)
        {
            try
            {
                DockState dockState = tab.Content.DockHandler.DockState;
                Rectangle rectTabStrip = GetLogicalTabStripRectangle(dockState);

                if (rectTabStrip.IsEmpty)
                    return Rectangle.Empty;

                int x = tab.TabX;
                int y = rectTabStrip.Y +
                    (dockState == DockState.DockTopAutoHide || dockState == DockState.DockRightAutoHide ?
                    0 : TabGapTop);
                int width = tab.TabWidth;
                int height = rectTabStrip.Height - TabGapTop;

                if (!transformed)
                    return new Rectangle(x, y, width, height);
                else
                    return GetTransformedRectangle(dockState, new Rectangle(x, y, width, height));
            }
            catch (Exception)
            {
                throw;
            }
        }

        private Rectangle GetTransformedRectangle(DockState dockState, Rectangle rect)
        {
            try
            {
                if (dockState != DockState.DockLeftAutoHide && dockState != DockState.DockRightAutoHide)
                    return rect;

                PointF[] pts = new PointF[1];
                // the center of the rectangle
                pts[0].X = (float)rect.X + (float)rect.Width / 2;
                pts[0].Y = (float)rect.Y + (float)rect.Height / 2;
                Rectangle rectTabStrip = GetLogicalTabStripRectangle(dockState);
                Matrix matrix = new Matrix();
                matrix.RotateAt(90, new PointF((float)rectTabStrip.X + (float)rectTabStrip.Height / 2,
                    (float)rectTabStrip.Y + (float)rectTabStrip.Height / 2));
                matrix.TransformPoints(pts);

                return new Rectangle((int)(pts[0].X - (float)rect.Height / 2 + .5F),
                    (int)(pts[0].Y - (float)rect.Width / 2 + .5F),
                    rect.Height, rect.Width);
            }
            catch (Exception)
            {
                throw;
            }
        }

        protected override IDockContent HitTest(Point ptMouse)
        {
            try
            {
                foreach (DockState state in DockStates)
                {
                    Rectangle rectTabStrip = GetLogicalTabStripRectangle(state, true);
                    if (!rectTabStrip.Contains(ptMouse))
                        continue;

                    foreach (Pane pane in GetPanes(state))
                    {
                        foreach (TabVS2005 tab in pane.AutoHideTabs)
                        {
                            GraphicsPath path = GetTabOutline(tab, true, true);
                            if (path.IsVisible(ptMouse))
                                return tab.Content;
                        }
                    }
                }

                return null;
            }
            catch (Exception)
            {
                throw;
            }
        }

        protected internal override int MeasureHeight()
        {
            return Math.Max(ImageGapBottom +
                ImageGapTop + ImageHeight,
                TextFont.Height) + TabGapTop;
        }

        protected override void OnRefreshChanges()
        {
            CalculateTabs();
            Invalidate();
        }

        protected override AutoHideStripBase.Tab CreateTab(IDockContent content)
        {
            return new TabVS2005(content);
        }
    }
}
Revision:	638
Committed:	Sat Jun 8 20:21:53 2013 UTC (10 years, 3 months ago) by william
File size:	21909 byte(s)
Log Message:	+ throw exceptions in VS2005AutoHideStrip - to locate a drawing issue with AutoHide tabs, crashing main form
#	User	Rev	Content
1	william	140	using System;
2			using System.Drawing;
3			using System.Windows.Forms;
4			using System.Drawing.Drawing2D;
5			using System.ComponentModel;
6
7			namespace WeifenLuo.WinFormsUI.Docking
8			{
9			internal class VS2005AutoHideStrip : AutoHideStripBase
10			{
11			private class TabVS2005 : Tab
12			{
13			internal TabVS2005(IDockContent content)
14			: base(content)
15			{
16			}
17
18			private int m_tabX = 0;
19			public int TabX
20			{
21			get { return m_tabX; }
22			set { m_tabX = value; }
23			}
24
25			private int m_tabWidth = 0;
26			public int TabWidth
27			{
28			get { return m_tabWidth; }
29			set { m_tabWidth = value; }
30			}
31
32			}
33
34			private const int _ImageHeight = 16;
35			private const int _ImageWidth = 16;
36			private const int _ImageGapTop = 2;
37			private const int _ImageGapLeft = 4;
38			private const int _ImageGapRight = 2;
39			private const int _ImageGapBottom = 2;
40			private const int _TextGapLeft = 0;
41			private const int _TextGapRight = 0;
42			private const int _TabGapTop = 3;
43			private const int _TabGapLeft = 4;
44			private const int _TabGapBetween = 10;
45
46			#region Customizable Properties
47			public Font TextFont
48			{
49			get { return DockPanel.Skin.AutoHideStripSkin.TextFont; }
50			}
51
52			private static StringFormat _stringFormatTabHorizontal;
53			private StringFormat StringFormatTabHorizontal
54			{
55			get
56			{
57			if (_stringFormatTabHorizontal == null)
58			{
59			_stringFormatTabHorizontal = new StringFormat();
60			_stringFormatTabHorizontal.Alignment = StringAlignment.Near;
61			_stringFormatTabHorizontal.LineAlignment = StringAlignment.Center;
62			_stringFormatTabHorizontal.FormatFlags = StringFormatFlags.NoWrap;
63			_stringFormatTabHorizontal.Trimming = StringTrimming.None;
64			}
65
66			if (RightToLeft == RightToLeft.Yes)
67			_stringFormatTabHorizontal.FormatFlags \|= StringFormatFlags.DirectionRightToLeft;
68			else
69			_stringFormatTabHorizontal.FormatFlags &= ~StringFormatFlags.DirectionRightToLeft;
70
71			return _stringFormatTabHorizontal;
72			}
73			}
74
75			private static StringFormat _stringFormatTabVertical;
76			private StringFormat StringFormatTabVertical
77			{
78			get
79			{
80			if (_stringFormatTabVertical == null)
81			{
82			_stringFormatTabVertical = new StringFormat();
83			_stringFormatTabVertical.Alignment = StringAlignment.Near;
84			_stringFormatTabVertical.LineAlignment = StringAlignment.Center;
85			_stringFormatTabVertical.FormatFlags = StringFormatFlags.NoWrap \| StringFormatFlags.DirectionVertical;
86			_stringFormatTabVertical.Trimming = StringTrimming.None;
87			}
88			if (RightToLeft == RightToLeft.Yes)
89			_stringFormatTabVertical.FormatFlags \|= StringFormatFlags.DirectionRightToLeft;
90			else
91			_stringFormatTabVertical.FormatFlags &= ~StringFormatFlags.DirectionRightToLeft;
92
93			return _stringFormatTabVertical;
94			}
95			}
96
97			private static int ImageHeight
98			{
99			get { return _ImageHeight; }
100			}
101
102			private static int ImageWidth
103			{
104			get { return _ImageWidth; }
105			}
106
107			private static int ImageGapTop
108			{
109			get { return _ImageGapTop; }
110			}
111
112			private static int ImageGapLeft
113			{
114			get { return _ImageGapLeft; }
115			}
116
117			private static int ImageGapRight
118			{
119			get { return _ImageGapRight; }
120			}
121
122			private static int ImageGapBottom
123			{
124			get { return _ImageGapBottom; }
125			}
126
127			private static int TextGapLeft
128			{
129			get { return _TextGapLeft; }
130			}
131
132			private static int TextGapRight
133			{
134			get { return _TextGapRight; }
135			}
136
137			private static int TabGapTop
138			{
139			get { return _TabGapTop; }
140			}
141
142			private static int TabGapLeft
143			{
144			get { return _TabGapLeft; }
145			}
146
147			private static int TabGapBetween
148			{
149			get { return _TabGapBetween; }
150			}
151
152			private static Pen PenTabBorder
153			{
154			get { return SystemPens.GrayText; }
155			}
156			#endregion
157
158			private static Matrix _matrixIdentity = new Matrix();
159			private static Matrix MatrixIdentity
160			{
161			get { return _matrixIdentity; }
162			}
163
164			private static DockState[] _dockStates;
165			private static DockState[] DockStates
166			{
167			get
168			{
169			if (_dockStates == null)
170			{
171			_dockStates = new DockState[4];
172			_dockStates[0] = DockState.DockLeftAutoHide;
173			_dockStates[1] = DockState.DockRightAutoHide;
174			_dockStates[2] = DockState.DockTopAutoHide;
175			_dockStates[3] = DockState.DockBottomAutoHide;
176			}
177			return _dockStates;
178			}
179			}
180
181			private static GraphicsPath _graphicsPath;
182			internal static GraphicsPath GraphicsPath
183			{
184			get
185			{
186			if (_graphicsPath == null)
187			_graphicsPath = new GraphicsPath();
188
189			return _graphicsPath;
190			}
191			}
192
193			public VS2005AutoHideStrip(DockPanel panel)
194			: base(panel)
195			{
196			SetStyle(ControlStyles.ResizeRedraw \|
197			ControlStyles.UserPaint \|
198			ControlStyles.AllPaintingInWmPaint \|
199			ControlStyles.OptimizedDoubleBuffer, true);
200			BackColor = SystemColors.ControlLight;
201			}
202
203			protected override void OnPaint(PaintEventArgs e)
204			{
205	william	638	try
206			{
207			Graphics g = e.Graphics;
208	william	140
209	william	638	Color startColor = DockPanel.Skin.AutoHideStripSkin.DockStripGradient.StartColor;
210			Color endColor = DockPanel.Skin.AutoHideStripSkin.DockStripGradient.EndColor;
211			LinearGradientMode gradientMode = DockPanel.Skin.AutoHideStripSkin.DockStripGradient.LinearGradientMode;
212			using (LinearGradientBrush brush = new LinearGradientBrush(ClientRectangle, startColor, endColor, gradientMode))
213			{
214			g.FillRectangle(brush, ClientRectangle);
215			}
216
217			DrawTabStrip(g);
218			}
219			catch (Exception)
220	william	140	{
221	william	638	throw;
222	william	140	}
223			}
224
225			protected override void OnLayout(LayoutEventArgs levent)
226			{
227			CalculateTabs();
228			base.OnLayout(levent);
229			}
230
231			private void DrawTabStrip(Graphics g)
232			{
233			DrawTabStrip(g, DockState.DockTopAutoHide);
234			DrawTabStrip(g, DockState.DockBottomAutoHide);
235			DrawTabStrip(g, DockState.DockLeftAutoHide);
236			DrawTabStrip(g, DockState.DockRightAutoHide);
237			}
238
239			private void DrawTabStrip(Graphics g, DockState dockState)
240			{
241	william	638	try
242			{
243			Rectangle rectTabStrip = GetLogicalTabStripRectangle(dockState);
244	william	140
245	william	638	if (rectTabStrip.IsEmpty)
246			return;
247	william	140
248	william	638	Matrix matrixIdentity = g.Transform;
249			if (dockState == DockState.DockLeftAutoHide \|\| dockState == DockState.DockRightAutoHide)
250			{
251			Matrix matrixRotated = new Matrix();
252			matrixRotated.RotateAt(90, new PointF((float)rectTabStrip.X + (float)rectTabStrip.Height / 2,
253			(float)rectTabStrip.Y + (float)rectTabStrip.Height / 2));
254			g.Transform = matrixRotated;
255			}
256
257			foreach (Pane pane in GetPanes(dockState))
258			{
259			foreach (TabVS2005 tab in pane.AutoHideTabs)
260			DrawTab(g, tab);
261			}
262			g.Transform = matrixIdentity;
263	william	140	}
264	william	638	catch (Exception)
265	william	140	{
266	william	638	throw;
267	william	140	}
268			}
269
270			private void CalculateTabs()
271			{
272			CalculateTabs(DockState.DockTopAutoHide);
273			CalculateTabs(DockState.DockBottomAutoHide);
274			CalculateTabs(DockState.DockLeftAutoHide);
275			CalculateTabs(DockState.DockRightAutoHide);
276			}
277
278			private void CalculateTabs(DockState dockState)
279			{
280	william	638	try
281			{
282			Rectangle rectTabStrip = GetLogicalTabStripRectangle(dockState);
283	william	140
284	william	638	int imageHeight = rectTabStrip.Height - ImageGapTop - ImageGapBottom;
285			int imageWidth = ImageWidth;
286			if (imageHeight > ImageHeight)
287			imageWidth = ImageWidth * (imageHeight / ImageHeight);
288	william	140
289	william	638	int x = TabGapLeft + rectTabStrip.X;
290			foreach (Pane pane in GetPanes(dockState))
291	william	140	{
292	william	638	foreach (TabVS2005 tab in pane.AutoHideTabs)
293			{
294			int width = imageWidth + ImageGapLeft + ImageGapRight +
295			TextRenderer.MeasureText(tab.Content.DockHandler.TabText, TextFont).Width +
296			TextGapLeft + TextGapRight;
297			tab.TabX = x;
298			tab.TabWidth = width;
299			x += width;
300			}
301
302			x += TabGapBetween;
303	william	140	}
304			}
305	william	638	catch (Exception)
306			{
307			throw;
308			}
309	william	140	}
310
311			private Rectangle RtlTransform(Rectangle rect, DockState dockState)
312			{
313	william	638	try
314			{
315			Rectangle rectTransformed;
316			if (dockState == DockState.DockLeftAutoHide \|\| dockState == DockState.DockRightAutoHide)
317			rectTransformed = rect;
318			else
319			rectTransformed = DrawHelper.RtlTransform(this, rect);
320	william	140
321	william	638	return rectTransformed;
322			}
323			catch (Exception)
324			{
325			throw;
326			}
327	william	140	}
328
329			private GraphicsPath GetTabOutline(TabVS2005 tab, bool transformed, bool rtlTransform)
330			{
331	william	638	try
332			{
333			DockState dockState = tab.Content.DockHandler.DockState;
334			Rectangle rectTab = GetTabRectangle(tab, transformed);
335			if (rtlTransform)
336			rectTab = RtlTransform(rectTab, dockState);
337			bool upTab = (dockState == DockState.DockLeftAutoHide \|\| dockState == DockState.DockBottomAutoHide);
338			DrawHelper.GetRoundedCornerTab(GraphicsPath, rectTab, upTab);
339	william	140
340	william	638	return GraphicsPath;
341			}
342			catch (Exception)
343			{
344			throw;
345			}
346	william	140	}
347
348			private void DrawTab(Graphics g, TabVS2005 tab)
349			{
350	william	638	try
351			{
352			Rectangle rectTabOrigin = GetTabRectangle(tab);
353			if (rectTabOrigin.IsEmpty)
354			return;
355	william	140
356	william	638	DockState dockState = tab.Content.DockHandler.DockState;
357			IDockContent content = tab.Content;
358	william	140
359	william	638	GraphicsPath path = GetTabOutline(tab, false, true);
360	william	140
361	william	638	Color startColor = DockPanel.Skin.AutoHideStripSkin.TabGradient.StartColor;
362			Color endColor = DockPanel.Skin.AutoHideStripSkin.TabGradient.EndColor;
363			LinearGradientMode gradientMode = DockPanel.Skin.AutoHideStripSkin.TabGradient.LinearGradientMode;
364			g.FillPath(new LinearGradientBrush(rectTabOrigin, startColor, endColor, gradientMode), path);
365			g.DrawPath(PenTabBorder, path);
366	william	140
367	william	638	// Set no rotate for drawing icon and text
368			Matrix matrixRotate = g.Transform;
369			g.Transform = MatrixIdentity;
370	william	140
371	william	638	// Draw the icon
372			Rectangle rectImage = rectTabOrigin;
373			rectImage.X += ImageGapLeft;
374			rectImage.Y += ImageGapTop;
375			int imageHeight = rectTabOrigin.Height - ImageGapTop - ImageGapBottom;
376			int imageWidth = ImageWidth;
377			if (imageHeight > ImageHeight)
378			imageWidth = ImageWidth * (imageHeight / ImageHeight);
379			rectImage.Height = imageHeight;
380			rectImage.Width = imageWidth;
381			rectImage = GetTransformedRectangle(dockState, rectImage);
382	william	140
383	william	638	if (dockState == DockState.DockLeftAutoHide \|\| dockState == DockState.DockRightAutoHide)
384			{
385			// The DockState is DockLeftAutoHide or DockRightAutoHide, so rotate the image 90 degrees to the right.
386			Rectangle rectTransform = RtlTransform(rectImage, dockState);
387			Point[] rotationPoints =
388	william	140	{
389			new Point(rectTransform.X + rectTransform.Width, rectTransform.Y),
390			new Point(rectTransform.X + rectTransform.Width, rectTransform.Y + rectTransform.Height),
391			new Point(rectTransform.X, rectTransform.Y)
392			};
393
394	william	638	using (Icon rotatedIcon = new Icon(((Form)content).Icon, 16, 16))
395			{
396			g.DrawImage(rotatedIcon.ToBitmap(), rotationPoints);
397			}
398			}
399			else
400	william	140	{
401	william	638	// Draw the icon normally without any rotation.
402			g.DrawIcon(((Form)content).Icon, RtlTransform(rectImage, dockState));
403	william	140	}
404
405	william	638	// Draw the text
406			Rectangle rectText = rectTabOrigin;
407			rectText.X += ImageGapLeft + imageWidth + ImageGapRight + TextGapLeft;
408			rectText.Width -= ImageGapLeft + imageWidth + ImageGapRight + TextGapLeft;
409			rectText = RtlTransform(GetTransformedRectangle(dockState, rectText), dockState);
410	william	140
411	william	638	Color textColor = DockPanel.Skin.AutoHideStripSkin.TabGradient.TextColor;
412	william	140
413	william	638	if (dockState == DockState.DockLeftAutoHide \|\| dockState == DockState.DockRightAutoHide)
414			g.DrawString(content.DockHandler.TabText, TextFont, new SolidBrush(textColor), rectText, StringFormatTabVertical);
415			else
416			g.DrawString(content.DockHandler.TabText, TextFont, new SolidBrush(textColor), rectText, StringFormatTabHorizontal);
417	william	140
418	william	638	// Set rotate back
419			g.Transform = matrixRotate;
420			}
421			catch (Exception)
422			{
423			throw;
424			}
425	william	140	}
426
427			private Rectangle GetLogicalTabStripRectangle(DockState dockState)
428			{
429			return GetLogicalTabStripRectangle(dockState, false);
430			}
431
432			private Rectangle GetLogicalTabStripRectangle(DockState dockState, bool transformed)
433			{
434	william	638	try
435			{
436			if (!DockHelper.IsDockStateAutoHide(dockState))
437			return Rectangle.Empty;
438	william	140
439	william	638	int leftPanes = GetPanes(DockState.DockLeftAutoHide).Count;
440			int rightPanes = GetPanes(DockState.DockRightAutoHide).Count;
441			int topPanes = GetPanes(DockState.DockTopAutoHide).Count;
442			int bottomPanes = GetPanes(DockState.DockBottomAutoHide).Count;
443	william	140
444	william	638	int x, y, width, height;
445	william	140
446	william	638	height = MeasureHeight();
447			if (dockState == DockState.DockLeftAutoHide && leftPanes > 0)
448			{
449			x = 0;
450			y = (topPanes == 0) ? 0 : height;
451			width = Height - (topPanes == 0 ? 0 : height) - (bottomPanes == 0 ? 0 : height);
452			}
453			else if (dockState == DockState.DockRightAutoHide && rightPanes > 0)
454			{
455			x = Width - height;
456			if (leftPanes != 0 && x < height)
457			x = height;
458			y = (topPanes == 0) ? 0 : height;
459			width = Height - (topPanes == 0 ? 0 : height) - (bottomPanes == 0 ? 0 : height);
460			}
461			else if (dockState == DockState.DockTopAutoHide && topPanes > 0)
462			{
463			x = leftPanes == 0 ? 0 : height;
464			y = 0;
465			width = Width - (leftPanes == 0 ? 0 : height) - (rightPanes == 0 ? 0 : height);
466			}
467			else if (dockState == DockState.DockBottomAutoHide && bottomPanes > 0)
468			{
469			x = leftPanes == 0 ? 0 : height;
470			y = Height - height;
471			if (topPanes != 0 && y < height)
472			y = height;
473			width = Width - (leftPanes == 0 ? 0 : height) - (rightPanes == 0 ? 0 : height);
474			}
475			else
476			return Rectangle.Empty;
477
478			if (!transformed)
479			return new Rectangle(x, y, width, height);
480			else
481			return GetTransformedRectangle(dockState, new Rectangle(x, y, width, height));
482	william	140	}
483	william	638	catch (Exception)
484	william	140	{
485	william	638	throw;
486	william	140	}
487			}
488
489			private Rectangle GetTabRectangle(TabVS2005 tab)
490			{
491			return GetTabRectangle(tab, false);
492			}
493
494			private Rectangle GetTabRectangle(TabVS2005 tab, bool transformed)
495			{
496	william	638	try
497			{
498			DockState dockState = tab.Content.DockHandler.DockState;
499			Rectangle rectTabStrip = GetLogicalTabStripRectangle(dockState);
500	william	140
501	william	638	if (rectTabStrip.IsEmpty)
502			return Rectangle.Empty;
503	william	140
504	william	638	int x = tab.TabX;
505			int y = rectTabStrip.Y +
506			(dockState == DockState.DockTopAutoHide \|\| dockState == DockState.DockRightAutoHide ?
507			0 : TabGapTop);
508			int width = tab.TabWidth;
509			int height = rectTabStrip.Height - TabGapTop;
510	william	140
511	william	638	if (!transformed)
512			return new Rectangle(x, y, width, height);
513			else
514			return GetTransformedRectangle(dockState, new Rectangle(x, y, width, height));
515			}
516			catch (Exception)
517			{
518			throw;
519			}
520	william	140	}
521
522			private Rectangle GetTransformedRectangle(DockState dockState, Rectangle rect)
523			{
524	william	638	try
525			{
526			if (dockState != DockState.DockLeftAutoHide && dockState != DockState.DockRightAutoHide)
527			return rect;
528	william	140
529	william	638	PointF[] pts = new PointF[1];
530			// the center of the rectangle
531			pts[0].X = (float)rect.X + (float)rect.Width / 2;
532			pts[0].Y = (float)rect.Y + (float)rect.Height / 2;
533			Rectangle rectTabStrip = GetLogicalTabStripRectangle(dockState);
534			Matrix matrix = new Matrix();
535			matrix.RotateAt(90, new PointF((float)rectTabStrip.X + (float)rectTabStrip.Height / 2,
536			(float)rectTabStrip.Y + (float)rectTabStrip.Height / 2));
537			matrix.TransformPoints(pts);
538	william	140
539	william	638	return new Rectangle((int)(pts[0].X - (float)rect.Height / 2 + .5F),
540			(int)(pts[0].Y - (float)rect.Width / 2 + .5F),
541			rect.Height, rect.Width);
542			}
543			catch (Exception)
544			{
545			throw;
546			}
547	william	140	}
548
549			protected override IDockContent HitTest(Point ptMouse)
550			{
551	william	638	try
552	william	140	{
553	william	638	foreach (DockState state in DockStates)
554			{
555			Rectangle rectTabStrip = GetLogicalTabStripRectangle(state, true);
556			if (!rectTabStrip.Contains(ptMouse))
557			continue;
558	william	140
559	william	638	foreach (Pane pane in GetPanes(state))
560	william	140	{
561	william	638	foreach (TabVS2005 tab in pane.AutoHideTabs)
562			{
563			GraphicsPath path = GetTabOutline(tab, true, true);
564			if (path.IsVisible(ptMouse))
565			return tab.Content;
566			}
567	william	140	}
568			}
569	william	638
570			return null;
571	william	140	}
572	william	638	catch (Exception)
573			{
574			throw;
575			}
576	william	140	}
577
578			protected internal override int MeasureHeight()
579			{
580			return Math.Max(ImageGapBottom +
581			ImageGapTop + ImageHeight,
582			TextFont.Height) + TabGapTop;
583			}
584
585			protected override void OnRefreshChanges()
586			{
587			CalculateTabs();
588			Invalidate();
589			}
590
591			protected override AutoHideStripBase.Tab CreateTab(IDockContent content)
592			{
593			return new TabVS2005(content);
594			}
595			}
596			}