protected override void OnPaint(PaintEventArgs e)
{
// Background
if (BackColor != Color.Transparent)
{
// If the parent is capable of providing a background brush, use it
IBackgroundBrushProvider bbp = Parent as IBackgroundBrushProvider;
Brush brush = bbp != null?bbp.GetBackgroundBrush(this) : new SolidBrush(BackColor);
using (brush)
e.Graphics.FillRectangle(brush, ClientRectangle);
}
// Foreground (icon)
int imageIndex = GetCurrentImageIndex();
if (_imageList != null && imageIndex >= 0 && imageIndex < _imageList.Images.Count)
{
_imageList.Draw(e.Graphics, 0, 0, imageIndex);
}
}
/*
* private int GetWorkspaceTextWidth( Graphics g )
* {
* IntPtr hdc = g.GetHdc();
* IntPtr oldFont = Win32Declarations.SelectObject( hdc, _fontHandle );
* SIZE sz = new SIZE();
* string text = WorkspaceName;
* Win32Declarations.GetTextExtentPoint32( hdc, text, text.Length, ref sz );
* Win32Declarations.SelectObject( hdc, oldFont );
* g.ReleaseHdc( hdc );
* return sz.cx;
* }
*/
/// <summary>
/// Draws the workspace button.
/// </summary>
protected override void OnPaint(PaintEventArgs e)
{
// Background (try to retrieve a brush from the parent)
IBackgroundBrushProvider bbp = Parent as IBackgroundBrushProvider;
Brush brushBack = bbp != null?bbp.GetBackgroundBrush(this) : new SolidBrush(BackColor);
using (brushBack)
e.Graphics.FillRectangle(brushBack, ClientRectangle);
// Do not try to paint a killed workspace
if ((_workspace != null) && (_workspace.IsDeleted))
{
return;
}
if (Core.State == CoreState.ShuttingDown)
{
return;
}
Color colorLink = Color.Blue; // Color of the links (unread counter text and underlining)
// Foreground
if (Active)
{ // The button represents an active (currently selected) workspace
/*
* using( GraphicsPath gp = GdiPlusTools.BuildRoundRectPath( ClientRectangle ) )
* {
* e.Graphics.FillPath( ColorScheme.GetBrush( _colorScheme,
* "WorkspaceBar.ActiveButtonBackground", ClientRectangle, SystemBrushes.Control ), gp );
* }
*
* Rectangle innerRect = ClientRectangle;
* innerRect.Inflate( -1, -1 );
* Pen borderPen = new Pen( ColorScheme.GetColor( _colorScheme,
* "WorkspaceBar.ActiveButtonBorder", SystemColors.Control ), 2.0f );
* using( borderPen )
* {
* e.Graphics.DrawRectangle( borderPen, innerRect );
* }
*
* using( Brush cornerBrush = new SolidBrush( BackColor ) )
* {
* e.Graphics.FillRectangle( cornerBrush, innerRect.Left - 1, innerRect.Top - 1, 1, 1 );
* e.Graphics.FillRectangle( cornerBrush, innerRect.Right, innerRect.Top - 1, 1, 1 );
* e.Graphics.FillRectangle( cornerBrush, innerRect.Left - 1, innerRect.Bottom, 1, 1 );
* e.Graphics.FillRectangle( cornerBrush, innerRect.Right, innerRect.Bottom, 1, 1 );
* }
*/
}
else
{ // The button's workspace is not active
if (_hot)
{ // The button is hovered, display UI cues
/*
* e.Graphics.DrawRectangle( ColorScheme.GetPen( _colorScheme,
* "WorkspaceBar.ActiveButtonBorder", SystemPens.Control ),
* ClientRectangle.Left, ClientRectangle.Top,
* ClientRectangle.Right - 4, ClientRectangle.Bottom - 1 );
*/
}
}
/*
*
* Rectangle client = ClientRectangle;
* IntPtr hdc = e.Graphics.GetHdc();
* ArrayList arIconIndices = new ArrayList(); // Indices of the icons in the resource image list that should be drawn on the control
* ArrayList arIconPositions = new ArrayList(); // X-coordinates of those icons
* try
* {
* IntPtr hOldFont = Win32Declarations.SelectObject( hdc, _fontHandle );
* int rgbTextColor = Win32Declarations.ColorToRGB( Enabled ? ForeColor : SystemColors.GrayText ); // Title color
* int rgbOldColor = Win32Declarations.SetTextColor( hdc, rgbTextColor );
* BackgroundMode oldMode = Win32Declarations.SetBkMode( hdc, Active ? BackgroundMode.OPAQUE : BackgroundMode.TRANSPARENT );
* int rgbOldBackColor = Win32Declarations.SetBkColor( hdc, Win32Declarations.ColorToRGB(SystemColors.Control) );
* int nCurPos = client.Left; // Current position at which the next label will be placed
*
* // Workspace title text
* string text = WorkspaceName; // Take the workspace name
*
* // Measure the title label size
* RECT rc = new RECT( client.Left, client.Top, client.Right, client.Bottom );
* Win32Declarations.DrawText( hdc, text, text.Length, ref rc, DrawTextFormatFlags.DT_NOPREFIX | DrawTextFormatFlags.DT_SINGLELINE | DrawTextFormatFlags.DT_CALCRECT );
* Size sizeTitle = new Size( rc.right - rc.left, rc.bottom - rc.top );
*
* // Draw the title
* Rectangle rcText = new Rectangle(new Point(nCurPos, client.Top + (client.Height - sizeTitle.Height) / 2), sizeTitle);
* rc = new RECT(rcText.Left, rcText.Top, rcText.Right, rcText.Bottom);
* Win32Declarations.DrawText( hdc, text, text.Length, ref rc, DrawTextFormatFlags.DT_NOPREFIX | DrawTextFormatFlags.DT_SINGLELINE );
* nCurPos = rcText.Right;
* nCurPos += _nGap;
*
* //////////////////////////////
* // Paint the Unread Counters
* // We cannot paint the icons now because HDC is in use for text, save their types and positions for later use
* Win32Declarations.SetTextColor( hdc, Win32Declarations.ColorToRGB( Color.Blue ));
* lock( _unreadCounters )
* {
* foreach( DictionaryEntry de in _unreadCounters )
* {
* string resType = (string) de.Key;
* int counter = (int) de.Value;
*
* // Icon (cannot draw now as HDC is in use)
* arIconIndices.Add( Core.ResourceIconManager.GetDefaultIconIndex( resType ) );
* arIconPositions.Add( nCurPos );
* nCurPos += 16; // Icon width
* nCurPos += _nIconTextGap; // Gap between the icon and its text
*
* // Item text
* string sCounter = counter.ToString();
*
* // Measure
* rc = new RECT( nCurPos, client.Top, client.Right, client.Bottom );
* Win32Declarations.DrawText( hdc, sCounter, sCounter.Length, ref rc, DrawTextFormatFlags.DT_NOPREFIX | DrawTextFormatFlags.DT_SINGLELINE | DrawTextFormatFlags.DT_CALCRECT );
* Size sizeCounter = new Size( rc.right - rc.left, rc.bottom - rc.top );
*
* // Draw
* Rectangle rcCounter = new Rectangle( new Point( nCurPos, client.Top + (client.Height - sizeCounter.Height) / 2 ), sizeCounter );
* rc = new RECT( rcCounter.Left, rcCounter.Top, rcCounter.Right, rcCounter.Bottom );
* Win32Declarations.DrawText( hdc, sCounter, sCounter.Length, ref rc, DrawTextFormatFlags.DT_NOPREFIX | DrawTextFormatFlags.DT_SINGLELINE );
* nCurPos = rcCounter.Right;
* nCurPos += _nGap;
* }
*
* Win32Declarations.SetBkMode( hdc, oldMode );
* Win32Declarations.SetTextColor( hdc, rgbOldColor );
* Win32Declarations.SetBkColor( hdc, rgbOldBackColor );
* Win32Declarations.SelectObject( hdc, hOldFont );
* }
* }
* finally
* {
* e.Graphics.ReleaseHdc( hdc );
* }
*
* ///////////////////
* // Draw the icons
* if(arIconIndices.Count == arIconPositions.Count)
* {
* int nIconTop = client.Top + (client.Height - 16) / 2;
* for(int a = 0; a < arIconIndices.Count; a++)
* Core.ResourceIconManager.ImageList.Draw( e.Graphics, (int) arIconPositions[a], nIconTop, 16, 16, (int) arIconIndices[a] );
* }
* else
* Trace.WriteLine( "Icon indices and icon positions lists are desynchronized.", "[WB]" );
*/
IntPtr hdc = e.Graphics.GetHdc();
try
{
IntPtr hOldFont = Win32Declarations.SelectObject(hdc, _hFontCounter);
int rgbTextColor = Win32Declarations.ColorToRGB(Enabled ? ForeColor : SystemColors.GrayText); // Title color
int rgbOldColor = Win32Declarations.SetTextColor(hdc, rgbTextColor);
BackgroundMode oldMode = Win32Declarations.SetBkMode(hdc, Active ? BackgroundMode.OPAQUE : BackgroundMode.TRANSPARENT);
int rgbOldBackColor = Win32Declarations.SetBkColor(hdc, Win32Declarations.ColorToRGB(SystemColors.Control));
// Workspace title text
string text = WorkspaceName; // Take the workspace name
RECT rc = RECTFromRectangle(_rectTitle);
Win32Declarations.DrawText(hdc, text, text.Length, ref rc, DrawTextFormatFlags.DT_NOPREFIX | DrawTextFormatFlags.DT_SINGLELINE);
///////////////////////////////////
// Paint the Unread Counters text
// (icons cannot be painted while the HDC is in use, wait for it to be released)
Win32Declarations.SetTextColor(hdc, Win32Declarations.ColorToRGB(colorLink));
if (_drawings != null)
{
foreach (Drawing drawing in _drawings)
{
if (drawing.What != Drawing.Type.CounterLabel)
{
continue;
}
// Update the text by taking it from the unread counters map
object value = _unreadCounters[drawing.ResType];
if (value != null)
{
drawing.Text = value.ToString();
}
// Paint the text
rc = RECTFromRectangle(drawing.Bounds);
Win32Declarations.DrawText(hdc, drawing.Text, drawing.Text.Length, ref rc, DrawTextFormatFlags.DT_NOPREFIX | DrawTextFormatFlags.DT_SINGLELINE);
}
}
Win32Declarations.SetBkMode(hdc, oldMode);
Win32Declarations.SetTextColor(hdc, rgbOldColor);
Win32Declarations.SetBkColor(hdc, rgbOldBackColor);
Win32Declarations.SelectObject(hdc, hOldFont);
}
finally
{
e.Graphics.ReleaseHdc(hdc);
}
//////////////////////////
// Unread Counters Icons
// and underline the hovered text
if (_drawings != null)
{
using (Brush brushUnderline = new SolidBrush(colorLink))
{
foreach (Drawing drawing in _drawings)
{
// Draw the icon
if (drawing.What == Drawing.Type.CounterIcon)
{
Core.ResourceIconManager.ImageList.Draw(e.Graphics, drawing.Bounds.Left, drawing.Bounds.Top, drawing.Bounds.Width, drawing.Bounds.Height, drawing.IconIndex);
}
// Draw underlining
else if ((drawing.What == Drawing.Type.CounterLabel) && (drawing.ResType == _sUnreadResTypeHovered))
{
e.Graphics.FillRectangle(brushUnderline, new Rectangle(drawing.Bounds.Left, drawing.Bounds.Bottom - 1, drawing.Bounds.Width, 1));
}
}
}
}
}
