void DrawButtonImageAndText(PaintEventArgs e, TabBarButton button, UIControlStatus ucs)
{
if (button.Icon != null && string.IsNullOrEmpty(button.Text))
{
PaintHelper.DrawImageInRange(e.Graphics, button.Icon, button.Bounds);
}
else if (button.Icon == null && string.IsNullOrEmpty(button.Text))
{
DrawButtonText(e, button, ucs);
}
else
{
Size size = Size.Ceiling(e.Graphics.MeasureString(button.Text, Bar.Font));
size.Width += button.Icon.Width;
Rectangle rect = new Rectangle(
button.Bounds.X + (button.Bounds.Width - size.Width) / 2,
button.Bounds.Y + (button.Bounds.Height - size.Height) / 2,
size.Width,
size.Height);
e.Graphics.DrawImage(button.Icon,
new Rectangle(rect.Left, rect.Top + (rect.Height - button.Icon.Height) / 2, button.Icon.Width, button.Icon.Height),
0, 0, button.Icon.Width, button.Icon.Height, GraphicsUnit.Pixel);
rect.X += button.Icon.Width;
rect.Width -= button.Icon.Width;
e.Graphics.DrawString(button.Text, Bar.Font, new SolidBrush(Bar.ForeColor), rect, PaintHelper.SFCenter);
}
}
void DrawButtonText(PaintEventArgs e, TabBarButton button, UIControlStatus ucs)
{
if (Bar != null)
{
e.Graphics.DrawString(button.Text, Bar.Font, new SolidBrush(Bar.ForeColor), button.Bounds, PaintHelper.SFCenter);
}
}
protected virtual void DrawButtonBackground(PaintEventArgs e, TabBarButton button, UIControlStatus ucs)
{
Rectangle rect = button.Bounds;
if (rect.Width <= 0 || rect.Height <= 0)
{
return;
}
Color backColor;
if (button.IsDroppingDown)
{
//backColor = UITheme.Default.Colors.MenuImageMargin;
backColor = Bar.SelectedItemBackColor;
}
else
{
switch (ucs)
{
case UIControlStatus.Hover:
backColor = Bar.HoverItemBackColor;
break;
case UIControlStatus.Selected:
backColor = Bar.SelectedItemBackColor;
break;
default:
return;
}
}
e.Graphics.FillRectangle(new SolidBrush(backColor), rect);
}
void OnButtonMouseUp(int index)
{
TabBarButton button = GetButton(index);
if (button != null)
{
button.OnMouseUp();
}
}
void OnButtonClick(int index)
{
TabBarButton button = GetButton(index);
if (button != null)
{
button.OnClick();
}
}
public void InitializeButtons()
{
LeftButtons = new XList <TabBarButton>();
LeftButtons.ItemAdded += new XListEventHandler <TabBarButton>(Buttons_ItemAdded);
RightButtons = new XList <TabBarButton>();
RightButtons.ItemAdded += new XListEventHandler <TabBarButton>(Buttons_ItemAdded);
DropDownButton = new TabBarButton();
//DropDownButton.OwnerDraw = false;
DropDownButton.Icon = Properties.Resources.chevron;
DropDownButton.Visible = ShowDropDownButton;
DropDownButton.Click += new EventHandler(DropDownButton_Click);
//DropDownButton.Paint += new UIPaintEventHandler(DropDownButton_Paint);
RightButtons.Add(DropDownButton);
//
InitializeSpecialTabs();
}
protected override void DrawButton(PaintEventArgs e, TabBarButton button, UIControlStatus ucs)
{
DrawButtonBackground(e, button, ucs);
if (button.DisplayStyle == ToolStripItemDisplayStyle.Image)
{
if (button.Icon != null)
{
PaintHelper.DrawImageInRange(e.Graphics, button.Icon, button.Bounds);
}
}
else if (button.DisplayStyle == ToolStripItemDisplayStyle.ImageAndText)
{
DrawButtonImageAndText(e, button, ucs);
}
else if (button.DisplayStyle == ToolStripItemDisplayStyle.Text)
{
DrawButtonText(e, button, ucs);
}
}
int LayoutRightButtons(int beginPos)
{
Rectangle rect = ClientRectangle;
if (ShowBaseLine)
{
rect.Height -= BaseLineSize;
}
int buttonHeight = rect.Height - 4;
float pos = beginPos;
int index = LeftButtons.Count;
for (int i = RightButtons.Count - 1; i >= 0; i--)
{
TabBarButton button = RightButtons[i];
button.Index = index + i;
if (!button.Visible)
{
continue;
}
float size = button.CustomSize > 0 ? button.CustomSize : StandardButtonSize;
RectangleF bounds;
if (IsHorizontal)
{
bounds = new RectangleF(pos - size, rect.Top + (rect.Height - buttonHeight) / 2, size, buttonHeight);
pos = bounds.Left;
}
else
{
bounds = new RectangleF(rect.Left + (rect.Width - buttonHeight) / 2, pos - size, buttonHeight, size);
pos = bounds.Top;
}
button.Bounds = Rectangle.Ceiling(bounds);
pos -= button.CustomSpace > 0 ? button.CustomSpace : ButtonSpace;
}
return((int)Math.Floor(rect.Right - pos));
}
protected abstract void DrawButton(PaintEventArgs e, TabBarButton button, UIControlStatus ucs);
