using System; using System.Collections; using System.ComponentModel; using System.Drawing; using System.Drawing.Drawing2D; using System.Data; using System.Windows.Forms; using System.Drawing.Design; using System.ComponentModel.Design; using System.Runtime.InteropServices; using System.Diagnostics; using System.IO; using Switch_Toolbox.Library.Forms; namespace FlatTabControl { /// /// Summary description for FlatTabControl. /// [ToolboxBitmap(typeof(System.Windows.Forms.TabControl))] //, //Designer(typeof(Designers.FlatTabControlDesigner))] public class FlatTabControl : System.Windows.Forms.TabControl { /// /// Required designer variable. /// private System.ComponentModel.Container components = null; private SubClass scUpDown = null; private bool bUpDown; // true when the button UpDown is required private ImageList leftRightImages = null; private const int nMargin = 5; private Color mBackColor = Color.Transparent; private Color mShadowColor = Color.Transparent; public FlatTabControl() { // This call is required by the Windows.Forms Form Designer. InitializeComponent(); // double buffering this.SetStyle(ControlStyles.UserPaint, true); this.SetStyle(ControlStyles.AllPaintingInWmPaint, true); this.SetStyle(ControlStyles.DoubleBuffer, true); this.SetStyle(ControlStyles.ResizeRedraw, true); this.SetStyle(ControlStyles.SupportsTransparentBackColor, true); myBackColor = FormThemes.BaseTheme.FormBackColor; bUpDown = false; this.ControlAdded += new ControlEventHandler(FlatTabControl_ControlAdded); this.ControlRemoved += new ControlEventHandler(FlatTabControl_ControlRemoved); this.SelectedIndexChanged += new EventHandler(FlatTabControl_SelectedIndexChanged); leftRightImages = new ImageList(); //leftRightImages.ImageSize = new Size(16, 16); // default /* System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(FlatTabControl)); Bitmap updownImage = ((System.Drawing.Bitmap)(resources.GetObject("TabIcons.bmp"))); if (updownImage != null) { updownImage.MakeTransparent(Color.White); leftRightImages.Images.AddStrip(updownImage); }*/ } /// /// Clean up any resources being used. /// protected override void Dispose( bool disposing ) { if( disposing ) { if(components != null) { components.Dispose(); } leftRightImages.Dispose(); } base.Dispose( disposing ); } protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); DrawControl(e.Graphics); } internal void DrawControl(Graphics g) { if (!Visible) return; Rectangle TabControlArea = this.ClientRectangle; Rectangle TabArea = this.DisplayRectangle; //---------------------------- // fill client area Brush br = new SolidBrush(mBackColor); //(SystemColors.Control); UPDATED g.FillRectangle(br, TabControlArea); br.Dispose(); //---------------------------- //---------------------------- // draw border int nDelta = SystemInformation.Border3DSize.Width; Pen border = new Pen(mShadowColor); TabArea.Inflate(nDelta, nDelta); g.DrawRectangle(border, TabArea); border.Dispose(); //---------------------------- //---------------------------- // clip region for drawing tabs Region rsaved = g.Clip; Rectangle rreg; int nWidth = TabArea.Width + nMargin; if (bUpDown) { // exclude updown control for painting if (Win32.IsWindowVisible(scUpDown.Handle)) { Rectangle rupdown = new Rectangle(); Win32.GetWindowRect(scUpDown.Handle, ref rupdown); Rectangle rupdown2 = this.RectangleToClient(rupdown); nWidth = rupdown2.X; } } rreg = new Rectangle(TabArea.Left, TabControlArea.Top, nWidth - nMargin, TabControlArea.Height); g.SetClip(rreg); // draw tabs for (int i = 0; i < this.TabCount; i++) DrawTab(g, this.TabPages[i], i); g.Clip = rsaved; //---------------------------- //---------------------------- // draw background to cover flat border areas if (this.SelectedTab != null) { TabPage tabPage = this.SelectedTab; tabPage.BackColor = Switch_Toolbox.Library.Forms.FormThemes.BaseTheme.TabPageActive; Color color = tabPage.BackColor; border = new Pen(color); TabArea.Offset(1, 1); TabArea.Width -= 2; TabArea.Height -= 2; g.DrawRectangle(border, TabArea); TabArea.Width -= 1; TabArea.Height -= 1; g.DrawRectangle(border, TabArea); border.Dispose(); } //---------------------------- } private const int WM_SETREDRAW = 11; [DllImport("user32.dll")] public static extern int SendMessage(IntPtr hWnd, Int32 wMsg, bool wParam, Int32 lParam); private void UpdateTabColor() { foreach (TabPage tpCheck in TabPages) { tpCheck.BackColor = Switch_Toolbox.Library.Forms.FormThemes.BaseTheme.TabPageInactive; tpCheck.ForeColor = Switch_Toolbox.Library.Forms.FormThemes.BaseTheme.DisabledItemColor; } if (SelectedTab != null) { SelectedTab.BackColor = Switch_Toolbox.Library.Forms.FormThemes.BaseTheme.TabPageActive; SelectedTab.ForeColor = Switch_Toolbox.Library.Forms.FormThemes.BaseTheme.TextForeColor; } this.Refresh(); } internal void DrawTab(Graphics g, TabPage tabPage, int nIndex) { Rectangle recBounds = this.GetTabRect(nIndex); RectangleF tabTextArea = (RectangleF)this.GetTabRect(nIndex); bool bSelected = (this.SelectedIndex == nIndex); Point[] pt = new Point[7]; if (this.Alignment == TabAlignment.Top) { pt[0] = new Point(recBounds.Left, recBounds.Bottom); pt[1] = new Point(recBounds.Left, recBounds.Top + 3); pt[2] = new Point(recBounds.Left + 3, recBounds.Top); pt[3] = new Point(recBounds.Right - 3, recBounds.Top); pt[4] = new Point(recBounds.Right, recBounds.Top + 3); pt[5] = new Point(recBounds.Right, recBounds.Bottom); pt[6] = new Point(recBounds.Left, recBounds.Bottom); } else { pt[0] = new Point(recBounds.Left, recBounds.Top); pt[1] = new Point(recBounds.Right, recBounds.Top); pt[2] = new Point(recBounds.Right, recBounds.Bottom - 3); pt[3] = new Point(recBounds.Right - 3, recBounds.Bottom); pt[4] = new Point(recBounds.Left + 3, recBounds.Bottom); pt[5] = new Point(recBounds.Left, recBounds.Bottom - 3); pt[6] = new Point(recBounds.Left, recBounds.Top); } //---------------------------- // fill this tab with background color Brush br = new SolidBrush(tabPage.BackColor); g.FillPolygon(br, pt); br.Dispose(); //---------------------------- //---------------------------- // draw border //g.DrawRectangle(SystemPens.ControlDark, recBounds); g.DrawPolygon(new Pen(Color.FromArgb(30,30,30)), pt); if (bSelected) { //---------------------------- // clear bottom lines Pen pen = new Pen(tabPage.BackColor); switch (this.Alignment) { case TabAlignment.Top: g.DrawLine(pen, recBounds.Left + 1, recBounds.Bottom, recBounds.Right - 1, recBounds.Bottom); g.DrawLine(pen, recBounds.Left + 1, recBounds.Bottom+1, recBounds.Right - 1, recBounds.Bottom+1); break; case TabAlignment.Bottom: g.DrawLine(pen, recBounds.Left + 1, recBounds.Top, recBounds.Right - 1, recBounds.Top); g.DrawLine(pen, recBounds.Left + 1, recBounds.Top-1, recBounds.Right - 1, recBounds.Top-1); g.DrawLine(pen, recBounds.Left + 1, recBounds.Top-2, recBounds.Right - 1, recBounds.Top-2); break; } pen.Dispose(); //---------------------------- } //---------------------------- //---------------------------- // draw tab's icon if ((tabPage.ImageIndex >= 0) && (ImageList != null) && (ImageList.Images[tabPage.ImageIndex] != null)) { int nLeftMargin = 8; int nRightMargin = 2; Image img = ImageList.Images[tabPage.ImageIndex]; Rectangle rimage = new Rectangle(recBounds.X + nLeftMargin, recBounds.Y + 1, img.Width, img.Height); // adjust rectangles float nAdj = (float)(nLeftMargin + img.Width + nRightMargin); rimage.Y += (recBounds.Height - img.Height) / 2; tabTextArea.X += nAdj; tabTextArea.Width -= nAdj; // draw icon g.DrawImage(img, rimage); } //---------------------------- //---------------------------- // draw string StringFormat stringFormat = new StringFormat(); stringFormat.Alignment = StringAlignment.Center; stringFormat.LineAlignment = StringAlignment.Center; br = new SolidBrush(tabPage.ForeColor); g.DrawString(tabPage.Text, Font, br, tabTextArea, stringFormat); //---------------------------- } internal void DrawIcons(Graphics g) { if ((leftRightImages == null) || (leftRightImages.Images.Count != 4)) return; //---------------------------- // calc positions Rectangle TabControlArea = this.ClientRectangle; Rectangle r0 = new Rectangle(); Win32.GetClientRect(scUpDown.Handle, ref r0); Brush br = new SolidBrush(mBackColor); g.FillRectangle(br, r0); br.Dispose(); Pen border = new Pen(mShadowColor); Rectangle rborder = r0; rborder.Inflate(-1, -1); g.DrawRectangle(border, rborder); border.Dispose(); int nMiddle = (r0.Width / 2); int nTop = (r0.Height - 16) / 2; int nLeft = (nMiddle - 16) / 2; Rectangle r1 = new Rectangle(nLeft, nTop, 16, 16); Rectangle r2 = new Rectangle(nMiddle+nLeft, nTop, 16, 16); //---------------------------- //---------------------------- // draw buttons Image img = leftRightImages.Images[1]; if (img != null) { if (this.TabCount > 0) { Rectangle r3 = this.GetTabRect(0); if (r3.Left < TabControlArea.Left) g.DrawImage(img, r1); else { img = leftRightImages.Images[3]; if (img != null) g.DrawImage(img, r1); } } } img = leftRightImages.Images[0]; if (img != null) { if (this.TabCount > 0) { Rectangle r3 = this.GetTabRect(this.TabCount - 1); if (r3.Right > (TabControlArea.Width - r0.Width)) g.DrawImage(img, r2); else { img = leftRightImages.Images[2]; if (img != null) g.DrawImage(img, r2); } } } //---------------------------- } protected override void OnCreateControl() { base.OnCreateControl(); FindUpDown(); } private void FlatTabControl_ControlAdded(object sender, ControlEventArgs e) { FindUpDown(); UpdateUpDown(); UpdateTabColor(); } private void FlatTabControl_ControlRemoved(object sender, ControlEventArgs e) { FindUpDown(); UpdateUpDown(); } private void FlatTabControl_SelectedIndexChanged(object sender, EventArgs e) { UpdateUpDown(); Invalidate(); // we need to update border and background colors } private void FindUpDown() { bool bFound = false; // find the UpDown control IntPtr pWnd = Win32.GetWindow(this.Handle, Win32.GW_CHILD); while (pWnd != IntPtr.Zero) { //---------------------------- // Get the window class name char[] className = new char[33]; int length = Win32.GetClassName(pWnd, className, 32); string s = new string(className, 0, length); //---------------------------- if (s == "msctls_updown32") { bFound = true; if (!bUpDown) { //---------------------------- // Subclass it this.scUpDown = new SubClass(pWnd, true); this.scUpDown.SubClassedWndProc += new SubClass.SubClassWndProcEventHandler(scUpDown_SubClassedWndProc); //---------------------------- bUpDown = true; } break; } pWnd = Win32.GetWindow(pWnd, Win32.GW_HWNDNEXT); } if ((!bFound) && (bUpDown)) bUpDown = false; } private void UpdateUpDown() { if (bUpDown) { if (Win32.IsWindowVisible(scUpDown.Handle)) { Rectangle rect = new Rectangle(); Win32.GetClientRect(scUpDown.Handle, ref rect); Win32.InvalidateRect(scUpDown.Handle, ref rect, true); } } } #region scUpDown_SubClassedWndProc Event Handler private int scUpDown_SubClassedWndProc(ref Message m) { switch (m.Msg) { case Win32.WM_PAINT: { //------------------------ // redraw IntPtr hDC = Win32.GetWindowDC(scUpDown.Handle); Graphics g = Graphics.FromHdc(hDC); DrawIcons(g); g.Dispose(); Win32.ReleaseDC(scUpDown.Handle, hDC); //------------------------ // return 0 (processed) m.Result = IntPtr.Zero; //------------------------ // validate current rect Rectangle rect = new Rectangle(); Win32.GetClientRect(scUpDown.Handle, ref rect); Win32.ValidateRect(scUpDown.Handle, ref rect); //------------------------ } return 1; } return 0; } #endregion #region Component Designer generated code /// /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// private void InitializeComponent() { this.SuspendLayout(); // // FlatTabControl // this.Selected += new System.Windows.Forms.TabControlEventHandler(this.FlatTabControl_Selected); this.ResumeLayout(false); } #endregion #region Properties [Editor(typeof(TabpageExCollectionEditor), typeof(UITypeEditor))] public new TabPageCollection TabPages { get { return base.TabPages; } } new public TabAlignment Alignment { get {return base.Alignment;} set { TabAlignment ta = value; if ((ta != TabAlignment.Top) && (ta != TabAlignment.Bottom)) ta = TabAlignment.Top; base.Alignment = ta;} } [Browsable(false)] new public bool Multiline { get {return base.Multiline;} set {base.Multiline = false;} } [Browsable(true)] new public Color myBackColor { get {return mBackColor;} set {mBackColor = value; this.Invalidate();} } #endregion #region TabpageExCollectionEditor internal class TabpageExCollectionEditor : CollectionEditor { public TabpageExCollectionEditor(System.Type type): base(type) { } protected override Type CreateCollectionItemType() { return typeof(TabPage); } } #endregion private void FlatTabControl_Selected(object sender, TabControlEventArgs e) { foreach (TabPage tpCheck in TabPages) { tpCheck.BackColor = Switch_Toolbox.Library.Forms.FormThemes.BaseTheme.TabPageInactive; tpCheck.ForeColor = Switch_Toolbox.Library.Forms.FormThemes.BaseTheme.DisabledItemColor; } if (SelectedTab != null) { SelectedTab.BackColor = Switch_Toolbox.Library.Forms.FormThemes.BaseTheme.TabPageActive; SelectedTab.ForeColor = Switch_Toolbox.Library.Forms.FormThemes.BaseTheme.TextForeColor; } } } //#endregion }