public void SetItems(PopupMenuItem[] items)
{
menuItems = items;
itemsBounds = new Rectangle[menuItems.Length];
int width = 0;
int height = BORDER;
Graphics graphics = this.CreateGraphics();
int index = 0;
foreach (MenuItem item in menuItems)
{
if (item.IsParent)
{
CreateSubMenu(item);
}
MeasureItemEventArgs ev =
new MeasureItemEventArgs(graphics, index);
PopupMenuItem.PopupMenu_MeasureItem(item, ev);
itemsBounds[index] = new Rectangle(BORDER, height, ev.ItemWidth, ev.ItemHeight);
width = Math.Max(width, ev.ItemWidth);
height += ev.ItemHeight;
index++;
}
width += 10;
for (int i = 0; i < itemsBounds.Length; i++)
{
itemsBounds[i].Width = width;
}
this.Size = new Size(width + BORDER * 2, height + BORDER);
}
private void ShowSubMenu(PopupMenuItem parentItem)
{
FlatPopupMenu subMenu = (FlatPopupMenu)subMenus[parentItem];
if (subMenu == null)
{
return;
}
subMenu.Show();
subMenu.Left = this.Left + this.Width;
subMenu.Top = this.Top + itemsBounds[SelectedIndex].Top - 1;
subMenu.BringToFront();
}
protected override void OnMouseHover(EventArgs e)
{
base.OnMouseHover(e);
base.ResetMouseEventArgs();
//Show submenu when mouse hover
if (SelectedIndex > -1)
{
PopupMenuItem parentItem = menuItems[SelectedIndex];
if (!parentItem.IsParent || !parentItem.Enabled)
{
return;
}
ShowSubMenu(parentItem);
}
}
private void CreateSubMenu(MenuItem parentItem)
{
if (parentItem.MenuItems == null || parentItem.MenuItems.Count == 0)
{
return;
}
FlatPopupMenu childMenu = new FlatPopupMenu();
PopupMenuItem[] items = new PopupMenuItem[parentItem.MenuItems.Count];
foreach (MenuItem item in parentItem.MenuItems)
{
items[parentItem.MenuItems.IndexOf(item)] = (PopupMenuItem)item;
}
childMenu.SetItems(items);
this.Parent.Controls.Add(childMenu);
subMenus.Add(parentItem, childMenu);
}
protected override void OnPaint(PaintEventArgs e)
{
//Draw background
SolidBrush brush = new SolidBrush(this.BackColor);
e.Graphics.FillRectangle(brush, 0, 0, this.Width, this.Height);
//Draw Items
if (menuItems != null && menuItems.Length > 0)
{
int index = 0;
foreach (MenuItem item in menuItems)
{
DrawItemState state = DrawItemState.None;
if (item.Checked)
{
state |= DrawItemState.Checked;
}
if (selectedIndex != -1 && item == menuItems[selectedIndex])
{
state |= DrawItemState.Selected;
}
DrawItemEventArgs ev =
new DrawItemEventArgs(e.Graphics, SystemInformation.MenuFont,
itemsBounds[index], index, state);
PopupMenuItem.PopupMenu_DrawItem(item, ev, true);
index++;
}
}
//Draw border
Color innerColor = Color.FromArgb(238, 236, 255);
Color cornerColor = Color.FromArgb(189, 182, 255);
Color outerColor = Color.FromArgb(47, 37, 181);
Point p1 = new Point(0, this.Height - 1);
Point p2 = new Point(0, 0);
Point p3 = new Point(this.Width - 1, 0);
Point p4 = new Point(this.Width - 1, this.Height - 1);
Pen pen = new Pen(cornerColor, 1);
e.Graphics.DrawRectangle(pen, p2.X, p2.Y, p4.X, p4.Y);
pen.Color = innerColor;
e.Graphics.DrawLines(pen, new Point[] { new Point(p1.X, p1.Y - 1), p2, new Point(p3.X - 1, p3.Y) });
pen.Color = outerColor;
e.Graphics.DrawLines(pen, new Point[] { new Point(p1.X + 1, p1.Y), p4, new Point(p3.X, p3.Y + 1) });
}
protected override void OnMouseDown(MouseEventArgs e)
{
//Show submenu when mouse hover
PopupMenuItem parentItem = menuItems[SelectedIndex];
if (parentItem.IsParent)
{
if (parentItem.Enabled)
{
ShowSubMenu(parentItem);
}
return;
}
//Process click event
if (e.Button != MouseButtons.Left)
{
return;
}
int index = 0;
foreach (Rectangle rect in itemsBounds)
{
if (rect.Contains(e.X, e.Y))
{
if (menuItems[index].Enabled && menuItems[index].Text != "-")
{
if (OwnerMenu != null)
{
OwnerMenu.Selected = false;
}
menuItems[index].ProcessClick(new EventArgs());
}
break;
}
index++;
}
}
public static void PopupMenu_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e, bool withArrows)
{
PopupMenuItem item = (PopupMenuItem)sender;
string caption = item.Text;
//Paint background
Color backColor = item.BackColor;
SolidBrush brush = new SolidBrush(Settings.MenuItemBackColor);
e.Graphics.FillRectangle(brush, e.Bounds.Left, e.Bounds.Top, e.Bounds.Width, e.Bounds.Height);
if ((e.State & DrawItemState.Selected) == DrawItemState.Selected)
{
brush.Color = Settings.MenuItemSelectedBackColor;
e.Graphics.FillRectangle(brush, e.Bounds.Left + 1, e.Bounds.Top + 3, e.Bounds.Width - 1, e.Bounds.Height - 6);
}
//Draw text
if (item.Text != "-")
{
int horizOffset = 16;
if (item.Enabled)
{
if ((e.State & DrawItemState.Selected) == DrawItemState.Selected)
{
brush.Color = Settings.MenuItemSelectedForeColor;
}
else
{
brush.Color = Settings.MenuItemForeColor;
}
}
else
{
brush.Color = Settings.MenuItemDisabledForeColor;
}
StringFormat sf = new StringFormat();
sf.HotkeyPrefix = HotkeyPrefix.Hide;
sf.Alignment = StringAlignment.Near;
sf.LineAlignment = StringAlignment.Center;
Rectangle textRect = new Rectangle(
e.Bounds.Left + horizOffset, e.Bounds.Top,
e.Bounds.Width - horizOffset, e.Bounds.Height);
e.Graphics.DrawString(caption, e.Font, brush, textRect, sf);
if (item.Image != null)
{
//e.Graphics.DrawImageUnscaled(item.Image, e.Bounds.Location.X, e.Bounds.Location.Y);
e.Graphics.DrawImage(item.Image, e.Bounds.Location.X, e.Bounds.Location.Y + 1, item.Image.Width, item.Image.Height);
//item.Image.Save("c:\\1.bmp", System.Drawing.Imaging.ImageFormat.Bmp);
}
}
else
{
//Draw separator line
Pen pen = new Pen(Color.White, 1);
Point src = new Point(e.Bounds.Left, e.Bounds.Top + 1);
Point dst = new Point(e.Bounds.Left + e.Bounds.Width, e.Bounds.Top + 1);
e.Graphics.DrawLine(pen, src, dst);
pen.Dispose();
}
//Draw check mark
if ((e.State & DrawItemState.Checked) == DrawItemState.Checked)
{
Size arrSize = new Size(e.Bounds.Height - 4, e.Bounds.Height - 4);
Bitmap bitmap = new Bitmap(arrSize.Height, arrSize.Height);
Graphics g = Graphics.FromImage(bitmap);
g.Clear(Color.Transparent);
ControlPaint.DrawMenuGlyph(g, new Rectangle(0, 1, arrSize.Width, arrSize.Height), MenuGlyph.Checkmark);
bitmap.MakeTransparent();
DrawMenyGlypth(e.Graphics, bitmap, new Rectangle(0, 0, arrSize.Width, arrSize.Height), new Rectangle(e.Bounds.Left + 2, // srcX
e.Bounds.Top + 1, // srcY
arrSize.Width,
arrSize.Height), (e.State & DrawItemState.Selected) == DrawItemState.Selected);
}
//Draw arrow
if (item.IsParent && withArrows)
{
Size arrSize = new Size(e.Bounds.Height - 2, e.Bounds.Height - 2);
Bitmap bitmap = new Bitmap(arrSize.Height, arrSize.Height);
Graphics g = Graphics.FromImage(bitmap);
g.Clear(Color.Transparent);
ControlPaint.DrawMenuGlyph(g, new Rectangle(0, 1, arrSize.Width, arrSize.Height), MenuGlyph.Arrow);
bitmap.MakeTransparent();
DrawMenyGlypth(e.Graphics, bitmap, new Rectangle(0, 0, arrSize.Width, arrSize.Height), new Rectangle(e.Bounds.Left + (e.Bounds.Width - e.Bounds.Height), // srcX
e.Bounds.Top + 1, // srcY
arrSize.Width,
arrSize.Height), (e.State & DrawItemState.Selected) == DrawItemState.Selected);
}
brush.Dispose();
}