protected override void WndProc(ref System.Windows.Forms.Message m)
{
switch (m.Msg)
{
case NativeMethods.WM_DWMCOMPOSITIONCHANGED:
if (this.glassSet)
{
this.ExtendFrameIntoClientArea();
}
break;
case NativeMethods.WM_NCHITTEST:
this.DefWndProc(ref m);
if (OsUtils.WinVistaOrLater() && VisualStyleRenderer.IsSupported && this.glassSet)
{
if ((int)m.Result == NativeMethods.HTCLIENT)
{
// Pretend that the mouse was over the title bar, making the form draggable
m.Result = (IntPtr)NativeMethods.HTCAPTION;
return;
}
}
break;
}
base.WndProc(ref m);
}
private void SearchBox_Resize(object sender, EventArgs e)
{
if (this.Height != this.themeHeight)
{
// Force the height to always be set to that specified from the theme
this.Height = this.themeHeight;
}
// Vertically center the search / cancel button on the right hand side
this.button.Left = this.Width - (this.button.Width + 6);
this.button.Top = Convert.ToInt32((this.Height - this.button.Height) / 2) + 1;
// Use the rest of the space for the textbox
this.textBox.Top = 4;
this.textBox.Width = this.button.Left - (this.textBox.Left + 4);
if (OsUtils.WinVistaOrLater() && VisualStyleRenderer.IsSupported)
{
// The textbox is given extra padding as part of the visual style
this.textBox.Left = 2;
}
else
{
this.textBox.Left = 6;
}
}
private void SearchBox_HandleCreated(object sender, EventArgs e)
{
if (OsUtils.WinVistaOrLater())
{
// Set the theme of this parent control and the edit control, so they are rendered correctly
Marshal.ThrowExceptionForHR(NativeMethods.SetWindowTheme(this.Handle, "SearchBoxComposited", null));
Marshal.ThrowExceptionForHR(NativeMethods.SetWindowTheme(this.textBox.Handle, "SearchBoxEditComposited", null));
}
}
private void SearchBox_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
if (VisualStyleRenderer.IsSupported)
{
VisualStyleRenderer searchBoxStyle = null;
if (OsUtils.WinVistaOrLater())
{
// Fetch the correct style based on the current state
searchBoxStyle = new VisualStyleRenderer(NativeMethods.SEARCHBOX, NativeMethods.SBBACKGROUND, this.boxState);
}
else
{
searchBoxStyle = new VisualStyleRenderer(VisualStyleElement.TextBox.TextEdit.Normal);
}
// Paint the visual style background for the control
searchBoxStyle.DrawBackground(e.Graphics, new Rectangle(0, 0, this.Width, this.Height));
}
else
{
// It would be simpler to use e.Graphics.Clear(SystemColors.Window), but that crashes
// sometimes when running under terminal services due to a bug in GDI+
using (Brush windowBrush = new SolidBrush(SystemColors.Window))
{
e.Graphics.FillRectangle(windowBrush, 0, 0, this.Width - 1, this.Height - 1);
}
// Paint a 'classic textbox' border for the control
using (Pen controlDark = new Pen(SystemColors.ControlDark))
{
using (Pen controlDarkDark = new Pen(SystemColors.ControlDarkDark))
{
using (Pen controlLightLight = new Pen(SystemColors.ControlLightLight))
{
using (Pen controlLight = new Pen(SystemColors.ControlLight))
{
e.Graphics.DrawLine(controlDark, 0, this.Height, 0, 0);
e.Graphics.DrawLine(controlDark, 0, 0, this.Width, 0);
e.Graphics.DrawLine(controlDarkDark, 1, this.Height - 1, 1, 1);
e.Graphics.DrawLine(controlDarkDark, 1, 1, this.Width - 1, 1);
e.Graphics.DrawLine(controlLight, this.Width - 2, 1, this.Width - 2, this.Height - 2);
e.Graphics.DrawLine(controlLight, this.Width - 2, this.Height - 2, 1, this.Height - 2);
e.Graphics.DrawLine(controlLightLight, this.Width - 1, 0, this.Width - 1, this.Height - 1);
e.Graphics.DrawLine(controlLightLight, this.Width - 1, this.Height - 1, 0, this.Height - 1);
}
}
}
}
}
}
public SearchBox()
: base()
{
this.TextChanged += this.SearchBox_TextChanged;
this.Resize += this.SearchBox_Resize;
this.Paint += this.SearchBox_Paint;
this.HandleCreated += this.SearchBox_HandleCreated;
this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
// Create the child textbox control for the user to type in, without a border
this.textBox = new TextBox();
this.themeHeight = this.textBox.Height + 2;
this.textBox.BorderStyle = BorderStyle.None;
this.Controls.Add(this.textBox);
this.textBox.MouseEnter += this.TextBox_MouseEnter;
this.textBox.MouseLeave += this.TextBox_MouseLeave;
this.textBox.GotFocus += this.TextBox_GotFocus;
this.textBox.LostFocus += this.TextBox_LostFocus;
this.textBox.TextChanged += this.TextBox_TextChanged;
this.textBox.KeyDown += this.TextBox_KeyDown;
// Create a picturebox to display the search icon and cancel 'button'
this.button = new PictureBox();
this.button.BackColor = Color.Transparent;
this.button.Image = Properties.Resources.search_icon;
this.button.SizeMode = PictureBoxSizeMode.AutoSize;
this.Controls.Add(this.button);
this.button.MouseEnter += this.Button_MouseEnter;
this.button.MouseLeave += this.Button_MouseLeave;
this.button.MouseDown += this.Button_MouseDown;
this.button.MouseUp += this.Button_MouseUp;
this.button.MouseClick += this.Button_MouseClick;
// Work out the height that the search box should be displayed
if (OsUtils.WinVistaOrLater() && VisualStyleRenderer.IsSupported)
{
VisualStyleRenderer sizeStyle = new VisualStyleRenderer(NativeMethods.SEARCHBOX, NativeMethods.SBBACKGROUND, NativeMethods.SBB_NORMAL);
using (Graphics sizeGraphics = this.CreateGraphics())
{
this.themeHeight = sizeStyle.GetPartSize(sizeGraphics, ThemeSizeType.True).Height;
}
}
}
protected override void OnRenderToolStripBorder(ToolStripRenderEventArgs e)
{
if (OsUtils.WinVistaOrLater() && VisualStyleRenderer.IsSupported)
{
if (!OsUtils.CompositionEnabled())
{
e.Graphics.DrawLine(this.nonAeroBorder, 0, e.AffectedBounds.Bottom - 1, e.ToolStrip.Width, e.AffectedBounds.Bottom - 1);
}
}
else
{
e.Graphics.DrawLine(this.tabBorder, 0, e.AffectedBounds.Bottom - 1, e.ToolStrip.Width, e.AffectedBounds.Bottom - 1);
}
ToolStripButton @checked = null;
// Find the currently checked ToolStripButton
foreach (ToolStripItem item in e.ToolStrip.Items)
{
ToolStripButton buttonItem = item as ToolStripButton;
if (buttonItem != null && buttonItem.Checked)
{
@checked = buttonItem;
break;
}
}
if (@checked != null)
{
// Extend the bottom of the tab over the client area border, joining the tab onto the main client area
using (SolidBrush toolbarBkg = new SolidBrush(this.GetActiveTabBtmCol(e.ToolStrip, @checked)))
{
e.Graphics.FillRectangle(toolbarBkg, new Rectangle(@checked.Bounds.Left, @checked.Bounds.Bottom, @checked.Bounds.Width - TabSeparation, e.ToolStrip.Bounds.Bottom - @checked.Bounds.Bottom));
}
e.Graphics.DrawLine(this.tabBorder, @checked.Bounds.Left, @checked.Bounds.Bottom, @checked.Bounds.Left, e.AffectedBounds.Bottom);
e.Graphics.DrawLine(this.tabBorder, @checked.Bounds.Right - TabSeparation, @checked.Bounds.Bottom, @checked.Bounds.Right - TabSeparation, e.AffectedBounds.Bottom);
}
}
protected override void OnRenderToolStripBackground(ToolStripRenderEventArgs e)
{
if (OsUtils.CompositionEnabled())
{
// Set the background colour to transparent to make it glass
e.Graphics.Clear(Color.Transparent);
}
else
{
if (VisualStyleRenderer.IsSupported && OsUtils.WinVistaOrLater())
{
// Set the background the same as the title bar to give the illusion of an extended frame
if (this.isActive)
{
// It would be simpler to use e.Graphics.Clear(SystemColors.GradientActiveCaption), but
// that crashes sometimes when running under terminal services due to a bug in GDI+
using (Brush backgroundBrush = new SolidBrush(SystemColors.GradientActiveCaption))
{
e.Graphics.FillRectangle(backgroundBrush, e.AffectedBounds);
}
}
else
{
// It would be simpler to use e.Graphics.Clear(SystemColors.GradientInactiveCaption), but
// that crashes sometimes when running under terminal services due to a bug in GDI+
using (Brush backgroundBrush = new SolidBrush(SystemColors.GradientInactiveCaption))
{
e.Graphics.FillRectangle(backgroundBrush, e.AffectedBounds);
}
}
}
else
{
base.OnRenderToolStripBackground(e);
}
}
}