protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
if (_tabArea.DropdownRectangle.Contains(e.Location))
{
_tabArea.DropdownHot = true;
return;
}
foreach (var tab in _tabs.Values)
{
var rect = RectangleToTabArea(tab.ClientRectangle);
if (rect.Contains(e.Location))
{
if (e.Button == MouseButtons.Middle)
{
tab.DockContent.Close();
return;
}
DockPanel.ActiveContent = tab.DockContent;
EnsureVisible();
_dragTab = tab;
return;
}
}
if (VisibleContent != null)
{
DockPanel.ActiveContent = VisibleContent;
}
}
private void PaintDocumentTab(Graphics g, DarkDockTab tab)
{
var tabRect = RectangleToTabArea(tab.ClientRectangle);
var isVisibleTab = VisibleContent == tab.DockContent;
var isActiveGroup = DockPanel.ActiveGroup == this;
var bgColor = isVisibleTab ? Colors.BlueSelection : Colors.DarkBackground;
if (!isActiveGroup)
{
bgColor = isVisibleTab ? Colors.GreySelection : Colors.DarkBackground;
}
if (tab.Hot && !isVisibleTab)
{
bgColor = Colors.MediumBackground;
}
using (var b = new SolidBrush(bgColor))
{
g.FillRectangle(b, tabRect);
}
// Draw separators
if (tab.ShowSeparator)
{
using (var p = new Pen(Colors.DarkBorder))
{
g.DrawLine(p, tabRect.Right - 1, tabRect.Top, tabRect.Right - 1, tabRect.Bottom);
}
}
var xOffset = 0;
// Draw icon
if (tab.DockContent.Icon != null)
{
g.DrawImageUnscaled(tab.DockContent.Icon, tabRect.Left + 5, tabRect.Top + 4);
xOffset += tab.DockContent.Icon.Width + 2;
}
var tabTextFormat = new StringFormat
{
Alignment = StringAlignment.Near,
LineAlignment = StringAlignment.Center,
FormatFlags = StringFormatFlags.NoWrap,
Trimming = StringTrimming.EllipsisCharacter
};
// Draw text
var textColor = isVisibleTab ? Colors.LightText : Colors.DisabledText;
using (var b = new SolidBrush(textColor))
{
var textRect = new Rectangle(tabRect.Left + 5 + xOffset, tabRect.Top, tabRect.Width - 7 - 5 - xOffset, tabRect.Height);
g.DrawString(tab.DockContent.DockText, Font, b, textRect, tabTextFormat);
}
}
private void PaintToolWindowTab(Graphics g, DarkDockTab tab)
{
var tabRect = tab.ClientRectangle;
var isVisibleTab = VisibleContent == tab.DockContent;
var bgColor = isVisibleTab ? Colors.GreyBackground : Colors.DarkBackground;
if (tab.Hot && !isVisibleTab)
{
bgColor = Colors.MediumBackground;
}
using (var b = new SolidBrush(bgColor))
{
g.FillRectangle(b, tabRect);
}
// Draw separators
if (tab.ShowSeparator)
{
using (var p = new Pen(Colors.DarkBorder))
{
g.DrawLine(p, tabRect.Right - 1, tabRect.Top, tabRect.Right - 1, tabRect.Bottom);
}
}
var tabTextFormat = new StringFormat
{
Alignment = StringAlignment.Near,
LineAlignment = StringAlignment.Center,
FormatFlags = StringFormatFlags.NoWrap,
Trimming = StringTrimming.EllipsisCharacter
};
var textColor = isVisibleTab ? Colors.BlueHighlight : Colors.DisabledText;
using (var b = new SolidBrush(textColor))
{
var textRect = new Rectangle(tabRect.Left + 5, tabRect.Top, tabRect.Width - 5, tabRect.Height);
g.DrawString(tab.DockContent.DockText, Font, b, textRect, tabTextFormat);
}
}
protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp(e);
_dragTab = null;
if (_tabArea.DropdownRectangle.Contains(e.Location))
{
if (_tabArea.DropdownHot)
{
_tabArea.ShowMenu(this, new Point(_tabArea.DropdownRectangle.Left, _tabArea.DropdownRectangle.Bottom - 2));
}
return;
}
if (_tabArea.ClickedCloseButton == null)
{
return;
}
}