/// <summary>Draws the headers border.</summary>
/// <param name="graphics">The specified graphics to draw on.</param>
/// <param name="tabPage">The tab page to draw.</param>
private static void DrawBorderHeader(Graphics graphics, VisualTabPage tabPage)
{
if (!tabPage.Border.Visible)
{
return;
}
GraphicsPath _borderGraphicsPath = new GraphicsPath();
_borderGraphicsPath.AddRectangle(tabPage.Rectangle);
Pen _borderPen = new Pen(tabPage.Border.Color, tabPage.Border.Thickness);
graphics.DrawPath(_borderPen, _borderGraphicsPath);
}
/// <summary>Draws the tab header content.</summary>
/// <param name="graphics">The specified graphics to draw on.</param>
/// <param name="tabPage">The tab page.</param>
/// <param name="selected">The selected toggle.</param>
private static void DrawContentHeader(Graphics graphics, VisualTabPage tabPage, bool selected)
{
Rectangle _imageRectangle = new Rectangle(tabPage.Rectangle.X + tabPage.Border.Thickness + 1, (tabPage.Rectangle.Y + (tabPage.Rectangle.Height / 2)) - (tabPage.ImageSize.Height / 2), tabPage.ImageSize.Width, tabPage.ImageSize.Height);
Rectangle _imageCenterRectangle = new Rectangle((tabPage.Rectangle.X + (tabPage.Rectangle.Width / 2)) - (tabPage.ImageSize.Width / 2), (tabPage.Rectangle.Y + (tabPage.Rectangle.Height / 2)) - (tabPage.ImageSize.Height / 2), tabPage.ImageSize.Width, tabPage.ImageSize.Height);
StringFormat _tabStringFormat = new StringFormat {
Alignment = tabPage.TextAlignment, LineAlignment = tabPage.TextLineAlignment
};
Size _textSize = StringUtil.MeasureText(tabPage.Text, tabPage.Font, graphics);
Color _foreColor = selected ? tabPage.TextSelected : tabPage.ForeColor;
switch (tabPage.TextImageRelation)
{
case VisualTabPage.TextImageRelations.ImageBeforeText:
{
if (tabPage.Image != null)
{
graphics.DrawImage(tabPage.Image, _imageRectangle);
}
graphics.DrawString(tabPage.Text, tabPage.Font, new SolidBrush(_foreColor), new Rectangle(_imageRectangle.Right + 1, (tabPage.Rectangle.Y + (tabPage.Rectangle.Height / 2)) - (_textSize.Height / 2), tabPage.Rectangle.Width, tabPage.Rectangle.Height));
break;
}
case VisualTabPage.TextImageRelations.Image:
{
if (tabPage.Image != null)
{
graphics.DrawImage(tabPage.Image, _imageCenterRectangle);
}
break;
}
case VisualTabPage.TextImageRelations.Text:
{
graphics.DrawString(tabPage.Text, tabPage.Font, new SolidBrush(_foreColor), tabPage.Rectangle, _tabStringFormat);
break;
}
default:
{
throw new ArgumentOutOfRangeException();
}
}
}
private void OnAddPage(object sender, EventArgs e)
{
VisualTabControl _parentalControl = (VisualTabControl)Control;
Control.ControlCollection _controlCollection = _parentalControl.Controls;
RaiseComponentChanging(TypeDescriptor.GetProperties(_parentalControl)["TabPages"]);
VisualTabPage _tabPage = (VisualTabPage)DesignerHost.CreateComponent(typeof(VisualTabPage));
_tabPage.Text = _tabPage.Name;
_parentalControl.TabPages.Add(_tabPage);
RaiseComponentChanged(TypeDescriptor.GetProperties(_parentalControl)["TabPages"], _controlCollection, _parentalControl.TabPages);
_parentalControl.SelectedTab = _tabPage;
SetVerbs();
}
/// <summary>Draws the selector.</summary>
/// <param name="graphics">The specified graphics to draw on.</param>
/// <param name="selectorType">The selector Type.</param>
private void DrawSelector(Graphics graphics, SelectorTypes selectorType)
{
if (_selectorVisible)
{
try
{
for (var tabIndex = 0; tabIndex <= TabCount - 1; tabIndex++)
{
VisualTabPage _tabPage = (VisualTabPage)TabPages[tabIndex];
_tabPage.Rectangle = GetStyledTabRectangle(tabIndex);
if (tabIndex == SelectedIndex)
{
switch (selectorType)
{
case SelectorTypes.Arrow:
{
DrawSelectorArrow(graphics, _tabPage.Rectangle);
break;
}
case SelectorTypes.Line:
{
DrawSelectorLine(graphics, _tabPage.Rectangle);
break;
}
default:
{
throw new ArgumentOutOfRangeException(nameof(selectorType), selectorType, null);
}
}
}
}
}
catch (Exception e)
{
Logger.WriteDebug(e);
}
}
}
/// <summary>Draws the tab pages.</summary>
/// <param name="graphics">The specified graphics to draw on.</param>
private void DrawTabPages(Graphics graphics)
{
try
{
for (var tabIndex = 0; tabIndex <= TabCount - 1; tabIndex++)
{
VisualTabPage _tabPage = (VisualTabPage)TabPages[tabIndex];
_tabPage.Rectangle = GetStyledTabRectangle(tabIndex);
if (tabIndex == SelectedIndex)
{
// Selected tab header
DrawBackgroundHeader(graphics, _tabPage, true);
DrawBorderHeader(graphics, _tabPage);
DrawContentHeader(graphics, _tabPage, true);
}
else
{
// Unselected tab header
DrawBackgroundHeader(graphics, _tabPage, false);
if ((_mouseState == MouseStates.Hover) && _tabPage.Rectangle.Contains(_mouseLocation))
{
graphics.FillRectangle(new SolidBrush(_tabPage.TabHover), _tabPage.Rectangle);
}
DrawBorderHeader(graphics, _tabPage);
DrawContentHeader(graphics, _tabPage, false);
}
}
}
catch (Exception e)
{
Logger.WriteDebug(e);
}
}
private void OnInsertPage(object sender, EventArgs e)
{
VisualTabControl _parentalControl = (VisualTabControl)Control;
Control.ControlCollection _controlCollection = _parentalControl.Controls;
int _index = _parentalControl.SelectedIndex;
RaiseComponentChanging(TypeDescriptor.GetProperties(_parentalControl)["TabPages"]);
VisualTabPage _tabPage = (VisualTabPage)DesignerHost.CreateComponent(typeof(VisualTabPage));
_tabPage.Text = _tabPage.Name;
var _tabPageCollection = new VisualTabPage[_parentalControl.TabCount];
// Starting at our Insert Position, store and remove all the tab pages.
for (int i = _index; i <= _tabPageCollection.Length - 1; i++)
{
_tabPageCollection[i] = (VisualTabPage)_parentalControl.TabPages[_index];
_parentalControl.TabPages.Remove(_parentalControl.TabPages[_index]);
}
// add the tab page to be inserted.
_parentalControl.TabPages.Add(_tabPage);
// then re-add the original tab pages.
for (int i = _index; i <= _tabPageCollection.Length - 1; i++)
{
_parentalControl.TabPages.Add(_tabPageCollection[i]);
}
RaiseComponentChanged(TypeDescriptor.GetProperties(_parentalControl)["TabPages"], _controlCollection, _parentalControl.TabPages);
_parentalControl.SelectedTab = _tabPage;
SetVerbs();
}
