public void Initialize(Z80NavBar.NavBarItem navItem, int width, Z80NavBar.Themes.ITheme theme, int depth)
{
_navItem = navItem;
_theme = theme;
_depth = depth;
this.Height = navItem.Height;
this.Width = width;
this.BackColor = theme.BackgroundColor(depth);
_initialized = true;
}
protected override void OnPaint(PaintEventArgs e)
{
if (_initialized)
{
float yPos = this.Height / 2 - (_theme.FontItem(_depth).Height / 2);
float xPos = 34;
if (_navItem.ParentID != null)
{
xPos = (float)_navItem.LeftChild;
}
if (_navItem.Enabled)
{
if (_hover)
{
if (_navItem.Icon != null)
{
e.Graphics.DrawImage(_navItem.Icon.Hover, new PointF(8, 8));
}
e.Graphics.DrawString(_navItem.Text, _theme.FontItem(_depth), _theme.BrushFontHover(_depth), new PointF(xPos, yPos));
//hover backcolor only in root nodes and items with 'childs'
if ((_navItem.ParentID == null) || (_navItem.Childs != null && _navItem.Childs.Count > 0))
{
this.BackColor = _theme.HoverBackgroundColor(_depth);
// v glyph only in childs (not root nodes)
if (_navItem.ParentID != null && _navItem.Childs != null)
{
Point p1 = new Point(this.Width - 4, this.Height / 2);
Point p2 = new Point(this.Width - 12, this.Height / 2);
Point p3 = new Point(this.Width - 8, ((this.Height / 2) + 4));
Point[] p = { p1, p2, p3 };
SolidBrush b = _theme.BrushFontHover(_depth);
e.Graphics.FillPolygon(b, p);
}
}
}
else //not hover
{
if (!_navItem.Selected)
{
if (_navItem.Icon != null)
{
e.Graphics.DrawImage(_navItem.Icon.Default, new PointF(8, 8));
}
e.Graphics.DrawString(_navItem.Text, _theme.FontItem(_depth), _theme.BrushFontItemNotSelected(_depth), new PointF(xPos, yPos));
this.BackColor = _theme.BackgroundColor(_depth);
// v glyph only in childs (not root nodes)
if (_navItem.ParentID != null && _navItem.Childs != null)
{
Point p1 = new Point(this.Width - 4, this.Height / 2);
Point p2 = new Point(this.Width - 12, this.Height / 2);
Point p3 = new Point(this.Width - 8, ((this.Height / 2) + 4));
Point[] p = { p1, p2, p3 };
SolidBrush b = _theme.BrushFontItemNotSelected(_depth);
e.Graphics.FillPolygon(b, p);
}
}
else //selected Item
{
if (_navItem.Icon != null)
{
e.Graphics.DrawImage(_navItem.Icon.Selected, new PointF(8, 8));
}
e.Graphics.DrawString(_navItem.Text, _theme.FontItemSelected(_depth), _theme.BrushFontItemSelected(_depth), new PointF(xPos, yPos));
if ((_navItem.ParentID == null) || (_navItem.Childs != null && _navItem.Childs.Count > 0))
{
this.BackColor = _theme.SelectedBackgroundColor(_depth);
// < glyph:
if (_navItem.Content)
{
Point p1 = new Point(this.Width - 8, this.Height / 2);
Point p2 = new Point(this.Width, ((this.Height / 2) - 8));
Point p3 = new Point(this.Width, ((this.Height / 2) + 8));
Point[] p = { p1, p2, p3 };
SolidBrush b = new SolidBrush(_navItem.ContentBackColor);
e.Graphics.FillPolygon(b, p);
}
}
}
}
}
else //Item disabled
{
this.Enabled = false;
//if you want to display icon when item was unselected, uncomment this If sentence:
//if (_navItem.Icon != null)
// e.Graphics.DrawImage(_navItem.Icon.Selected, new PointF(8, 8));
e.Graphics.DrawString(_navItem.Text, _theme.FontItem(_depth), _theme.BrushFontItemDisable, new PointF(xPos, yPos));
this.BackColor = _theme.ItemDisableBackgroudColor;
}
}
base.OnPaint(e);
}
