/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.MouseDown" /> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.MouseEventArgs" /> that contains the event data.</param>
protected override void OnMouseDown(MouseEventArgs e)
{
if (!Focused)
{
Focus();
}
base.OnMouseDown(e);
var info = HitTest();
if (info.Area == HitArea.Button)
{
switch (e.Button)
{
case MouseButtons.Left:
items[info.ButtonIndex].MouseDown = true;
Invalidate();
break;
case MouseButtons.Right:
{
var itemEventArgs = new GenericClickEventArgs <BarItem>(items[info.ButtonIndex],
MouseButtons.Right,
new Point(e.X, e.Y));
OnItemClick(itemEventArgs);
}
break;
}
}
else if (e.Button == MouseButtons.Right)
{
OnBarClick(e);
}
}
/// <summary>
/// Fires <see cref="ItemClick" /> event
/// </summary>
/// <param name="e">Object containing event data.</param>
protected virtual void OnItemClick(GenericClickEventArgs <BarItem> e)
{
if (ItemClick != null)
{
ItemClick(this, e);
}
}
/// <summary>
/// Processes the mnemonic.
/// </summary>
/// <param name="charCode">The character to process.</param>
/// <returns>true if the character was processed as a mnemonic by the control; otherwise, false.</returns>
protected override bool ProcessMnemonic(Char charCode)
{
string itemText;
var index = -1;
var compareText = "&" + Char.ToUpper(charCode);
var ret = false;
for (var i = 0; i < items.Count; i++)
{
itemText = items[i].Caption.ToUpper();
var pos = itemText.IndexOf(compareText);
if (pos <= 0)
{
continue;
}
index = i;
ret = true;
break;
}
if (index > -1)
{
items[index].Selected = true;
EnsureVisibility(index);
var itemClickArgs = new GenericClickEventArgs <BarItem>(items[index], MouseButtons.None, new Point(0, 0));
OnItemClick(itemClickArgs);
}
return(ret);
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.MouseUp" /> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.MouseEventArgs" /> that contains the event data.</param>
protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp(e);
if (e.Button != MouseButtons.Left)
{
return;
}
var changed = false;
for (var i = 0; i < items.Count; i++)
{
if (!items[i].MouseDown)
{
continue;
}
var info = HitTest();
if (info.ButtonIndex == i)
{
if (items[i].Enabled)
{
items[i].MouseDown = false;
items[i].Selected = true;
EnsureVisibility(i);
Invalidate();
var itemEventArgs = new GenericClickEventArgs <BarItem>(items[i], MouseButtons.Left,
new Point(e.X, e.Y));
OnItemClick(itemEventArgs);
}
else
{
items[i].MouseDown = false;
}
}
else
{
items[i].MouseDown = false;
changed = true;
}
}
if (changed)
{
Invalidate();
}
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.KeyDown" /> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.KeyEventArgs" /> that contains the event data.</param>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
if (items == null)
{
return;
}
if (items.Count <= 0)
{
return;
}
var newIndex = -1;
var currentIndex = -1;
var mouseOverIndex = -1;
var found = false;
for (var i = 0; i < items.Count; i++)
{
if (items[i].MouseOver)
{
mouseOverIndex = i;
}
if (items[i].Selected)
{
currentIndex = i;
}
}
if (mouseOverIndex > 0)
{
currentIndex = mouseOverIndex;
}
switch (e.KeyCode)
{
case Keys.Up:
newIndex = NextItem(currentIndex, -1);
break;
case Keys.Down:
newIndex = NextItem(currentIndex, 1);
break;
case Keys.PageUp:
newIndex = NextItem(currentIndex, -4);
break;
case Keys.PageDown:
newIndex = NextItem(currentIndex, 4);
break;
case Keys.Home:
newIndex = 1;
while (!found)
{
if (items[newIndex].Enabled)
{
found = true;
}
else
{
newIndex++;
if (newIndex >= items.Count)
{
found = true;
}
}
}
break;
case Keys.End:
newIndex = items.Count - 1;
while (!found)
{
if (items[newIndex].Enabled)
{
found = true;
}
else
{
newIndex--;
if (newIndex < 0)
{
found = true;
}
}
}
break;
case Keys.Enter:
if (mouseOverIndex >= 0)
{
items[mouseOverIndex].Selected = true;
items[mouseOverIndex].MouseOver = false;
for (var i = 0; i < items.Count; i++)
{
items[i].MouseOver = false;
}
EnsureVisibility(mouseOverIndex);
var itemClickArgs = new GenericClickEventArgs <BarItem>(items[mouseOverIndex], MouseButtons.None,
new Point(0, 0));
OnItemClick(itemClickArgs);
}
break;
}
if ((newIndex == currentIndex) || (newIndex <= -1) || (newIndex >= items.Count))
{
return;
}
for (var i = 0; i < items.Count; i++)
{
items[i].MouseOver = i == newIndex;
}
EnsureVisibility(newIndex);
Invalidate();
}
