internal void DrawTab(Graphics g, TabPage tabPage, int nIndex)
{
Rectangle recBounds = this.GetTabRect(nIndex);
RectangleF tabTextArea = (RectangleF)this.GetTabRect(nIndex);
//debug --> to be fixed
if (recBounds.Width == 0)
{
recBounds.Width = 50;
}
if (tabTextArea.Width == 0)
{
tabTextArea.Width = 50;
}
if (recBounds.Height == 0)
{
recBounds.Width = 22;
}
if (tabTextArea.Height == 0)
{
tabTextArea.Width = 22;
}
bool bSelected = (this.SelectedIndex == nIndex);
bool bHot = false;
if (tabPage.Tag != null)
{
bHot = (bool)tabPage.Tag;
}
//for buttons appearance
if (this.Appearance != TabAppearance.Normal)
{
_cornerLeftWidth = 0;
_cornerRightWidth = 0;
_cornerWidth = 0;
this.Alignment = TabAlignment.Top;
}
//Tab Hedaer Status
DrawingMethods.TabHeaderStatus Status = DrawingMethods.TabHeaderStatus.Normal;
if (_preserveTabColor)
{
Status = DrawingMethods.TabHeaderStatus.NormalPreserve;
}
if (bHot)
{
Status = DrawingMethods.TabHeaderStatus.Hot;
}
//bool bHotselected = false;
if ((bSelected) && (!bHot))
{
Status = DrawingMethods.TabHeaderStatus.Selected;
}
else if ((bSelected) && (bHot))
{
Status = DrawingMethods.TabHeaderStatus.HotSelected;
//bHotselected = true;
}
//Selected tab has to be highter
if (!_allowSelectedTabHigh)
{
_allowSelectedTabHighSize = 0;
}
else
{
_allowSelectedTabHighSize = 1;
}
//Create tab Header Points (Sqared)
Point[] pt = DrawingMethods.GetTabSquaredPoints(recBounds, _cornerWidth, Alignment, _cornerLeftWidth, _cornerRightWidth, this.Appearance, Status, _allowSelectedTabHighSize, false);
//----------------------------
// fill this tab with background color
Brush br = new SolidBrush(tabPage.BackColor);
//Font for header
Font fnt = Font;
switch (Status)
{
case DrawingMethods.TabHeaderStatus.Selected:
DrawingMethods.DrawTabHeader(g, pt, recBounds, _tabColorSelectedLight, _tabColorSelectedDark, tabPage.BackColor, 90, Alignment, _useExtendedLayout, Status, false);
fnt = new Font(Font.FontFamily, Font.SizeInPoints, FontStyle.Bold);
br = new SolidBrush(_tabForeColor);
break;
case DrawingMethods.TabHeaderStatus.HotSelected:
DrawingMethods.DrawTabHeader(g, pt, recBounds, _tabColorSelectedLight, DrawingMethods.GetLighterColor(_tabColorSelectedDark), tabPage.BackColor, 90, Alignment, _useExtendedLayout, Status, false);
fnt = new Font(Font.FontFamily, Font.SizeInPoints, FontStyle.Bold);
br = new SolidBrush(_tabHotForeColor);
break;
case DrawingMethods.TabHeaderStatus.Hot:
DrawingMethods.DrawTabHeader(g, pt, recBounds, _tabColorHotLight, _tabColorHotDark, _tabColorHotLight, 90, Alignment, _useExtendedLayout, Status, false);
br = new SolidBrush(_tabHotForeColor);
break;
case DrawingMethods.TabHeaderStatus.Normal:
DrawingMethods.DrawTabHeader(g, pt, recBounds, _tabColorDefaultLight, _tabColorDefaultDark, _tabColorDefaultLight, 90, Alignment, _useExtendedLayout, Status, false);
br = new SolidBrush(_tabForeColor);
break;
case DrawingMethods.TabHeaderStatus.NormalPreserve:
DrawingMethods.DrawTabHeader(g, pt, recBounds, DrawingMethods.GetSystemLighterColor(tabPage.BackColor), DrawingMethods.GetDarkerColor(tabPage.BackColor), tabPage.BackColor, 90, Alignment, _useExtendedLayout, Status, true);
br = new SolidBrush(_tabForeColor);
break;
}
//----------------------------
//----------------------------
// draw border
//g.DrawRectangle(SystemPens.ControlDark, recBounds);
g.DrawPolygon(new Pen(_borderColor, _borderWidth), pt);
//----------------------------
if (((Status == DrawingMethods.TabHeaderStatus.Selected) || (Status == DrawingMethods.TabHeaderStatus.HotSelected)) && (this.Appearance == TabAppearance.Normal))
{
//----------------------------
// clear bottom lines
Pen pen = new Pen(tabPage.BackColor);
DrawingMethods.ClearTabSelectedBottomLine(g, recBounds, pen, this.Alignment);
pen.Dispose();
//----------------------------
}
//----------------------------
//----------------------------
// draw tab's icon
if ((tabPage.ImageIndex >= 0) && (ImageList != null) && (ImageList.Images[tabPage.ImageIndex] != null))
{
int nLeftMargin = 8;
int nRightMargin = 2;
Image img = ImageList.Images[tabPage.ImageIndex];
Rectangle rimage = new Rectangle(recBounds.X + nLeftMargin, recBounds.Y + 1, img.Width, img.Height);
// adjust rectangles
float nAdj = (float)(nLeftMargin + img.Width + nRightMargin);
// adjust rectangles
if (Alignment == TabAlignment.Top || Alignment == TabAlignment.Bottom)
{
nAdj = (float)(nLeftMargin + img.Width + nRightMargin);
rimage.Y += (recBounds.Height - img.Height) / 2;
tabTextArea.X += nAdj;
tabTextArea.Width -= nAdj;
}
else
{
if (_useExtendedLayout == false)
{
img.RotateFlip(RotateFlipType.Rotate90FlipNone);
rimage.X -= 5;
}
//rimage.X += (recBounds.Width - img.Width) / 2;
rimage.Y += 3;
nAdj = (float)(10 + img.Height);
tabTextArea.Y += img.Height;
tabTextArea.Height -= img.Height;
}
// draw icon
g.DrawImage(img, rimage);
}
//no image
else
{
if (_useExtendedLayout == true)
{
tabTextArea.Y += 16;
tabTextArea.Height -= 16;
}
}
//----------------------------
//----------------------------
// draw string
StringFormat stringFormat = new StringFormat();
stringFormat.Alignment = StringAlignment.Center;
stringFormat.LineAlignment = StringAlignment.Center;
//rtl
if (this.RightToLeft == RightToLeft.Yes)
{
stringFormat.FormatFlags = StringFormatFlags.DirectionRightToLeft;
}
//Disabled
if (!this.Enabled)
{
br = new SolidBrush(SystemColors.GrayText);
}
if (this.Alignment == TabAlignment.Right || this.Alignment == TabAlignment.Left)
{
//not ExtendedLayout
if (_useExtendedLayout == false)
{
stringFormat.FormatFlags = StringFormatFlags.DirectionVertical;
tabTextArea.Offset(-3, -5);
}
else
//Extended Layout
{
tabTextArea.Height = tabTextArea.Height + 8;
tabTextArea.Offset(4, -12);
stringFormat.FormatFlags = StringFormatFlags.NoWrap;
stringFormat.Trimming = StringTrimming.EllipsisCharacter;
}
}
else
{
tabTextArea.Offset(-5, 0);
}
//use AntiAlias
if (Utility.IsVista())
{
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
}
else
{
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SystemDefault;
}
g.DrawString(tabPage.Text, fnt, br, tabTextArea, stringFormat);
//----------------------------
br.Dispose();
}
