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;

                if (rectTabOrigin.Width == 0)
                {
                    // rectangle width cannot be 0
                    rectTabOrigin.Width = 1;
                }

                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:	640
Committed:	Sat Jun 8 20:31:20 2013 UTC (9 years, 9 months ago) by william
File size:	22096 byte(s)
Log Message:	private void DrawTab(Graphics g, TabVS2005 tab) * rectTabOrigin.Width cannot be 0, if it is, set it to 1 ** this fixes crashes in the main form (or users of autohide tabs)
#	Content
1	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	try
206	{
207	Graphics g = e.Graphics;
208
209	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	{
221	throw;
222	}
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	try
242	{
243	Rectangle rectTabStrip = GetLogicalTabStripRectangle(dockState);
244
245	if (rectTabStrip.IsEmpty)
246	return;
247
248	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	}
264	catch (Exception)
265	{
266	throw;
267	}
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	try
281	{
282	Rectangle rectTabStrip = GetLogicalTabStripRectangle(dockState);
283
284	int imageHeight = rectTabStrip.Height - ImageGapTop - ImageGapBottom;
285	int imageWidth = ImageWidth;
286	if (imageHeight > ImageHeight)
287	imageWidth = ImageWidth * (imageHeight / ImageHeight);
288
289	int x = TabGapLeft + rectTabStrip.X;
290	foreach (Pane pane in GetPanes(dockState))
291	{
292	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	}
304	}
305	catch (Exception)
306	{
307	throw;
308	}
309	}
310
311	private Rectangle RtlTransform(Rectangle rect, DockState dockState)
312	{
313	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
321	return rectTransformed;
322	}
323	catch (Exception)
324	{
325	throw;
326	}
327	}
328
329	private GraphicsPath GetTabOutline(TabVS2005 tab, bool transformed, bool rtlTransform)
330	{
331	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
340	return GraphicsPath;
341	}
342	catch (Exception)
343	{
344	throw;
345	}
346	}
347
348	private void DrawTab(Graphics g, TabVS2005 tab)
349	{
350	try
351	{
352	Rectangle rectTabOrigin = GetTabRectangle(tab);
353	if (rectTabOrigin.IsEmpty)
354	return;
355
356	DockState dockState = tab.Content.DockHandler.DockState;
357	IDockContent content = tab.Content;
358
359	GraphicsPath path = GetTabOutline(tab, false, true);
360
361	Color startColor = DockPanel.Skin.AutoHideStripSkin.TabGradient.StartColor;
362	Color endColor = DockPanel.Skin.AutoHideStripSkin.TabGradient.EndColor;
363	LinearGradientMode gradientMode = DockPanel.Skin.AutoHideStripSkin.TabGradient.LinearGradientMode;
364
365	if (rectTabOrigin.Width == 0)
366	{
367	// rectangle width cannot be 0
368	rectTabOrigin.Width = 1;
369	}
370
371	g.FillPath(new LinearGradientBrush(rectTabOrigin, startColor, endColor, gradientMode), path);
372	g.DrawPath(PenTabBorder, path);
373
374	// Set no rotate for drawing icon and text
375	Matrix matrixRotate = g.Transform;
376	g.Transform = MatrixIdentity;
377
378	// Draw the icon
379	Rectangle rectImage = rectTabOrigin;
380	rectImage.X += ImageGapLeft;
381	rectImage.Y += ImageGapTop;
382	int imageHeight = rectTabOrigin.Height - ImageGapTop - ImageGapBottom;
383	int imageWidth = ImageWidth;
384	if (imageHeight > ImageHeight)
385	imageWidth = ImageWidth * (imageHeight / ImageHeight);
386	rectImage.Height = imageHeight;
387	rectImage.Width = imageWidth;
388	rectImage = GetTransformedRectangle(dockState, rectImage);
389
390	if (dockState == DockState.DockLeftAutoHide \|\| dockState == DockState.DockRightAutoHide)
391	{
392	// The DockState is DockLeftAutoHide or DockRightAutoHide, so rotate the image 90 degrees to the right.
393	Rectangle rectTransform = RtlTransform(rectImage, dockState);
394	Point[] rotationPoints =
395	{
396	new Point(rectTransform.X + rectTransform.Width, rectTransform.Y),
397	new Point(rectTransform.X + rectTransform.Width, rectTransform.Y + rectTransform.Height),
398	new Point(rectTransform.X, rectTransform.Y)
399	};
400
401	using (Icon rotatedIcon = new Icon(((Form)content).Icon, 16, 16))
402	{
403	g.DrawImage(rotatedIcon.ToBitmap(), rotationPoints);
404	}
405	}
406	else
407	{
408	// Draw the icon normally without any rotation.
409	g.DrawIcon(((Form)content).Icon, RtlTransform(rectImage, dockState));
410	}
411
412	// Draw the text
413	Rectangle rectText = rectTabOrigin;
414	rectText.X += ImageGapLeft + imageWidth + ImageGapRight + TextGapLeft;
415	rectText.Width -= ImageGapLeft + imageWidth + ImageGapRight + TextGapLeft;
416	rectText = RtlTransform(GetTransformedRectangle(dockState, rectText), dockState);
417
418	Color textColor = DockPanel.Skin.AutoHideStripSkin.TabGradient.TextColor;
419
420	if (dockState == DockState.DockLeftAutoHide \|\| dockState == DockState.DockRightAutoHide)
421	g.DrawString(content.DockHandler.TabText, TextFont, new SolidBrush(textColor), rectText, StringFormatTabVertical);
422	else
423	g.DrawString(content.DockHandler.TabText, TextFont, new SolidBrush(textColor), rectText, StringFormatTabHorizontal);
424
425	// Set rotate back
426	g.Transform = matrixRotate;
427	}
428	catch (Exception)
429	{
430	throw;
431	}
432	}
433
434	private Rectangle GetLogicalTabStripRectangle(DockState dockState)
435	{
436	return GetLogicalTabStripRectangle(dockState, false);
437	}
438
439	private Rectangle GetLogicalTabStripRectangle(DockState dockState, bool transformed)
440	{
441	try
442	{
443	if (!DockHelper.IsDockStateAutoHide(dockState))
444	return Rectangle.Empty;
445
446	int leftPanes = GetPanes(DockState.DockLeftAutoHide).Count;
447	int rightPanes = GetPanes(DockState.DockRightAutoHide).Count;
448	int topPanes = GetPanes(DockState.DockTopAutoHide).Count;
449	int bottomPanes = GetPanes(DockState.DockBottomAutoHide).Count;
450
451	int x, y, width, height;
452
453	height = MeasureHeight();
454	if (dockState == DockState.DockLeftAutoHide && leftPanes > 0)
455	{
456	x = 0;
457	y = (topPanes == 0) ? 0 : height;
458	width = Height - (topPanes == 0 ? 0 : height) - (bottomPanes == 0 ? 0 : height);
459	}
460	else if (dockState == DockState.DockRightAutoHide && rightPanes > 0)
461	{
462	x = Width - height;
463	if (leftPanes != 0 && x < height)
464	x = height;
465	y = (topPanes == 0) ? 0 : height;
466	width = Height - (topPanes == 0 ? 0 : height) - (bottomPanes == 0 ? 0 : height);
467	}
468	else if (dockState == DockState.DockTopAutoHide && topPanes > 0)
469	{
470	x = leftPanes == 0 ? 0 : height;
471	y = 0;
472	width = Width - (leftPanes == 0 ? 0 : height) - (rightPanes == 0 ? 0 : height);
473	}
474	else if (dockState == DockState.DockBottomAutoHide && bottomPanes > 0)
475	{
476	x = leftPanes == 0 ? 0 : height;
477	y = Height - height;
478	if (topPanes != 0 && y < height)
479	y = height;
480	width = Width - (leftPanes == 0 ? 0 : height) - (rightPanes == 0 ? 0 : height);
481	}
482	else
483	return Rectangle.Empty;
484
485	if (!transformed)
486	return new Rectangle(x, y, width, height);
487	else
488	return GetTransformedRectangle(dockState, new Rectangle(x, y, width, height));
489	}
490	catch (Exception)
491	{
492	throw;
493	}
494	}
495
496	private Rectangle GetTabRectangle(TabVS2005 tab)
497	{
498	return GetTabRectangle(tab, false);
499	}
500
501	private Rectangle GetTabRectangle(TabVS2005 tab, bool transformed)
502	{
503	try
504	{
505	DockState dockState = tab.Content.DockHandler.DockState;
506	Rectangle rectTabStrip = GetLogicalTabStripRectangle(dockState);
507
508	if (rectTabStrip.IsEmpty)
509	return Rectangle.Empty;
510
511	int x = tab.TabX;
512	int y = rectTabStrip.Y +
513	(dockState == DockState.DockTopAutoHide \|\| dockState == DockState.DockRightAutoHide ?
514	0 : TabGapTop);
515	int width = tab.TabWidth;
516	int height = rectTabStrip.Height - TabGapTop;
517
518	if (!transformed)
519	return new Rectangle(x, y, width, height);
520	else
521	return GetTransformedRectangle(dockState, new Rectangle(x, y, width, height));
522	}
523	catch (Exception)
524	{
525	throw;
526	}
527	}
528
529	private Rectangle GetTransformedRectangle(DockState dockState, Rectangle rect)
530	{
531	try
532	{
533	if (dockState != DockState.DockLeftAutoHide && dockState != DockState.DockRightAutoHide)
534	return rect;
535
536	PointF[] pts = new PointF[1];
537	// the center of the rectangle
538	pts[0].X = (float)rect.X + (float)rect.Width / 2;
539	pts[0].Y = (float)rect.Y + (float)rect.Height / 2;
540	Rectangle rectTabStrip = GetLogicalTabStripRectangle(dockState);
541	Matrix matrix = new Matrix();
542	matrix.RotateAt(90, new PointF((float)rectTabStrip.X + (float)rectTabStrip.Height / 2,
543	(float)rectTabStrip.Y + (float)rectTabStrip.Height / 2));
544	matrix.TransformPoints(pts);
545
546	return new Rectangle((int)(pts[0].X - (float)rect.Height / 2 + .5F),
547	(int)(pts[0].Y - (float)rect.Width / 2 + .5F),
548	rect.Height, rect.Width);
549	}
550	catch (Exception)
551	{
552	throw;
553	}
554	}
555
556	protected override IDockContent HitTest(Point ptMouse)
557	{
558	try
559	{
560	foreach (DockState state in DockStates)
561	{
562	Rectangle rectTabStrip = GetLogicalTabStripRectangle(state, true);
563	if (!rectTabStrip.Contains(ptMouse))
564	continue;
565
566	foreach (Pane pane in GetPanes(state))
567	{
568	foreach (TabVS2005 tab in pane.AutoHideTabs)
569	{
570	GraphicsPath path = GetTabOutline(tab, true, true);
571	if (path.IsVisible(ptMouse))
572	return tab.Content;
573	}
574	}
575	}
576
577	return null;
578	}
579	catch (Exception)
580	{
581	throw;
582	}
583	}
584
585	protected internal override int MeasureHeight()
586	{
587	return Math.Max(ImageGapBottom +
588	ImageGapTop + ImageHeight,
589	TextFont.Height) + TabGapTop;
590	}
591
592	protected override void OnRefreshChanges()
593	{
594	CalculateTabs();
595	Invalidate();
596	}
597
598	protected override AutoHideStripBase.Tab CreateTab(IDockContent content)
599	{
600	return new TabVS2005(content);
601	}
602	}
603	}