protected virtual int DrawTab(Graphics dc, System.Windows.Forms.TabPage page, System.Windows.Forms.TabControl tab, Rectangle_ bounds, bool is_selected)
{
Rectangle_ interior;
int res = bounds.Width;
dc.FillRectangle(ResPool.GetSolidBrush(tab.BackColor), bounds);
if (tab.Appearance == TabAppearance.Buttons || tab.Appearance == TabAppearance.FlatButtons)
{
// Separators
if (tab.Appearance == TabAppearance.FlatButtons)
{
int width = bounds.Width;
bounds.Width += (flatButtonSpacing - 2);
res = bounds.Width;
if (tab.Alignment == TabAlignment.Top || tab.Alignment == TabAlignment.Bottom)
{
ThemeEngine.Current.CPDrawBorder3D(dc, bounds, Border3DStyle.Etched, Border3DSide.Right);
}
else
{
ThemeEngine.Current.CPDrawBorder3D(dc, bounds, Border3DStyle.Etched, Border3DSide.Top);
}
bounds.Width = width;
}
if (is_selected)
{
ThemeEngine.Current.CPDrawBorder3D(dc, bounds, Border3DStyle.Sunken, Border3DSide.Left | Border3DSide.Right | Border3DSide.Top | Border3DSide.Bottom);
}
else if (tab.Appearance != TabAppearance.FlatButtons)
{
ThemeEngine.Current.CPDrawBorder3D(dc, bounds, Border3DStyle.Raised, Border3DSide.Left | Border3DSide.Right | Border3DSide.Top | Border3DSide.Bottom);
}
}
else
{
CPColor cpcolor = ResPool.GetCPColor(tab.BackColor);
Pen light = ResPool.GetPen(cpcolor.LightLight);
switch (tab.Alignment)
{
case TabAlignment.Top:
dc.DrawLine(light, bounds.Left, bounds.Bottom - 1, bounds.Left, bounds.Top + 3);
dc.DrawLine(light, bounds.Left, bounds.Top + 3, bounds.Left + 2, bounds.Top);
dc.DrawLine(light, bounds.Left + 2, bounds.Top, bounds.Right - 3, bounds.Top);
dc.DrawLine(SystemPens.ControlDark, bounds.Right - 2, bounds.Top + 1, bounds.Right - 2, bounds.Bottom - 1);
dc.DrawLine(SystemPens.ControlDarkDark, bounds.Right - 2, bounds.Top + 1, bounds.Right - 1, bounds.Top + 2);
dc.DrawLine(SystemPens.ControlDarkDark, bounds.Right - 1, bounds.Top + 2, bounds.Right - 1, bounds.Bottom - 1);
break;
case TabAlignment.Bottom:
dc.DrawLine(light, bounds.Left, bounds.Top, bounds.Left, bounds.Bottom - 2);
dc.DrawLine(light, bounds.Left, bounds.Bottom - 2, bounds.Left + 3, bounds.Bottom);
dc.DrawLine(SystemPens.ControlDarkDark, bounds.Left + 3, bounds.Bottom, bounds.Right - 3, bounds.Bottom);
dc.DrawLine(SystemPens.ControlDark, bounds.Left + 3, bounds.Bottom - 1, bounds.Right - 3, bounds.Bottom - 1);
dc.DrawLine(SystemPens.ControlDark, bounds.Right - 2, bounds.Bottom - 1, bounds.Right - 2, bounds.Top + 1);
dc.DrawLine(SystemPens.ControlDarkDark, bounds.Right - 2, bounds.Bottom - 1, bounds.Right - 1, bounds.Bottom - 2);
dc.DrawLine(SystemPens.ControlDarkDark, bounds.Right - 1, bounds.Bottom - 2, bounds.Right - 1, bounds.Top + 1);
break;
case TabAlignment.Left:
dc.DrawLine(light, bounds.Left - 2, bounds.Top, bounds.Right, bounds.Top);
dc.DrawLine(light, bounds.Left, bounds.Top + 2, bounds.Left - 2, bounds.Top);
dc.DrawLine(light, bounds.Left, bounds.Top + 2, bounds.Left, bounds.Bottom - 2);
dc.DrawLine(SystemPens.ControlDark, bounds.Left, bounds.Bottom - 2, bounds.Left + 2, bounds.Bottom - 1);
dc.DrawLine(SystemPens.ControlDark, bounds.Left + 2, bounds.Bottom - 1, bounds.Right, bounds.Bottom - 1);
dc.DrawLine(SystemPens.ControlDarkDark, bounds.Left + 2, bounds.Bottom, bounds.Right, bounds.Bottom);
break;
default: // TabAlignment.Right
dc.DrawLine(light, bounds.Left, bounds.Top, bounds.Right - 3, bounds.Top);
dc.DrawLine(light, bounds.Right - 3, bounds.Top, bounds.Right, bounds.Top + 3);
dc.DrawLine(SystemPens.ControlDark, bounds.Right - 1, bounds.Top + 1, bounds.Right - 1, bounds.Bottom - 1);
dc.DrawLine(SystemPens.ControlDark, bounds.Left, bounds.Bottom - 1, bounds.Right - 2, bounds.Bottom - 1);
dc.DrawLine(SystemPens.ControlDarkDark, bounds.Right, bounds.Top + 3, bounds.Right, bounds.Bottom - 3);
dc.DrawLine(SystemPens.ControlDarkDark, bounds.Left, bounds.Bottom, bounds.Right - 3, bounds.Bottom);
break;
}
}
Point_ padding = tab.Padding;
interior = new Rectangle_(bounds.Left + padding.X - 1, // substract a little offset
bounds.Top + padding.Y,
bounds.Width - (padding.X * 2),
bounds.Height - (padding.Y * 2));
if (tab.DrawMode == TabDrawMode.Normal && page.Text != null)
{
if (tab.Alignment == TabAlignment.Left)
{
dc.TranslateTransform(bounds.Left, bounds.Bottom);
dc.RotateTransform(-90);
dc.DrawString(page.Text, tab.Font,
SystemBrushes.ControlText,
tab.Padding.X - 2, // drawstring adds some extra unwanted leading spaces, so trimming
tab.Padding.Y,
defaultFormatting);
dc.ResetTransform();
}
else if (tab.Alignment == TabAlignment.Right)
{
dc.TranslateTransform(bounds.Right, bounds.Top);
dc.RotateTransform(90);
dc.DrawString(page.Text, tab.Font,
SystemBrushes.ControlText,
tab.Padding.X - 2, // drawstring adds some extra unwanted leading spaces, so trimming
tab.Padding.Y,
defaultFormatting);
dc.ResetTransform();
}
else
{
Rectangle_ str_rect = interior;
if (is_selected)
{
// Reduce the interior Size_ to match the inner Size_ of non-selected tabs
str_rect.X += selectedTabDelta.X;
str_rect.Y += selectedTabDelta.Y;
str_rect.Width -= selectedTabDelta.Width;
str_rect.Height -= selectedTabDelta.Height;
str_rect.Y -= selectedTabDelta.Y; // Move up the text / image of the selected tab
}
if (tab.ImageList != null && page.ImageIndex >= 0 && page.ImageIndex < tab.ImageList.Images.Count)
{
int image_x;
if (tab.SizeMode != TabSizeMode.Fixed)
{
image_x = str_rect.X;
}
else
{
image_x = str_rect.X + (str_rect.Width - tab.ImageList.ImageSize.Width) / 2;
if (page.Text != null)
{
SizeF_ textSize = dc.MeasureString(page.Text, page.Font, str_rect.Size);
image_x -= (int)(textSize.Width / 2);
}
}
int image_y = str_rect.Y + (str_rect.Height - tab.ImageList.ImageSize.Height) / 2;
tab.ImageList.Draw(dc, new Point_(image_x, image_y), page.ImageIndex);
str_rect.X += tab.ImageList.ImageSize.Width + 2;
str_rect.Width -= tab.ImageList.ImageSize.Width + 2;
}
dc.DrawString(page.Text, tab.Font,
SystemBrushes.ControlText,
str_rect,
defaultFormatting);
}
}
else if (page.Text != null)
{
DrawItemState state = DrawItemState.None;
if (page == tab.SelectedTab)
{
state |= DrawItemState.Selected;
}
DrawItemEventArgs e = new DrawItemEventArgs(dc,
tab.Font, bounds, tab.IndexForTabPage(page),
state, page.ForeColor, page.BackColor);
tab.OnDrawItemInternal(e);
return(res);
}
// TabControl ignores the value of ShowFocusCues
if (page.Parent.Focused && is_selected)
{
Rectangle_ focus_rect = bounds;
focus_rect.Inflate(-2, -2);
ThemeEngine.Current.CPDrawFocusRectangle(dc, focus_rect, tab.BackColor, tab.ForeColor);
}
return(res);
}
