public void setup()
{
int h = listBox.GetItemHeight(0);
var sz = panel.Size;
int btnCount = sz.Height / h;
if (null != buttons)
{
foreach (var b in buttons)
{
b.Dispose();
}
}
buttons = new MnemonicLabel[btnCount];
for (int i = 0; i < btnCount; i++)
{
int ii = i;
buttons[i] = new MnemonicLabel(() =>
{
if (listBox.Items.Count > ii)
{
listBox.SetItemChecked(ii, true);
}
});
panel.Controls.Add(buttons[i]);
buttons[i].Size = new System.Drawing.Size(h - 1, h - 1);
var lbFont = listBox.Font;
System.Drawing.Font f = new System.Drawing.Font(lbFont.FontFamily, lbFont.Height * 2 / 3);
buttons[i].Font = f;
buttons[i].Location = new System.Drawing.Point(0, h * i);
buttons[i].Text = String.Format("&{0}", i + 1);
buttons[i].Margin = new System.Windows.Forms.Padding(0);
buttons[i].FlatStyle = System.Windows.Forms.FlatStyle.Flat;
buttons[i].UseMnemonic = true;
buttons[i].TabStop = true;
buttons[i].TabIndex = 1 + i;
buttons[i].TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
buttons[i].Visible = false;
}
listBox.TabIndex = btnCount + 1;
listBox.Size = new System.Drawing.Size(sz.Width - h, sz.Height);
}
/// <summary>
/// Event Handler from the checked list box ItemCheck Event.
/// Enabled/disable the real time stylus plugin corresponding
/// to the item being checked/unchecked.
/// </summary>
/// <param name="sender">The control that raised the event.</param>
/// <param name="e">The event arguments.</param>
private void chklbPlugins_ItemCheck(object sender, System.Windows.Forms.ItemCheckEventArgs e)
{
// The CheckedListBox CheckOnClick property allows the user
// to toggle the checkbox without first selecting the list item,
// but since the list also allows the user to rearrange the
// items, we only want CheckOnClick to proceed if the user clicks
// on the checkbox itself.
if (lastMouseDownEventArgs != null)
{
// If we previously cached MouseDownEventArgs, check the MouseDown location.
bool abortItemCheck = (lastMouseDownEventArgs.X > chklbPlugins.GetItemHeight(e.Index));
// Reset the cache
lastMouseDownEventArgs = null;
// If the MouseDown location is outside the checkbox area, abort.
if (abortItemCheck)
{
e.NewValue = e.CurrentValue;
return;
}
}
// Enable/disable the plugin according to its new
// checked value. A plugin is enabled by inserting
// it into the real time stylus notification chain and it is
// disabled by removing it from the plugin collection. The dynamic
// renderer is handled specially by setting its enabled
// property.
if (e.Index < chklbPlugins.Items.Count)
{
if (e.NewValue == CheckState.Checked)
{
InsertIntoPluginCollection(e.Index);
}
else if (e.NewValue == CheckState.Unchecked)
{
RemoveFromPluginCollection(e.Index);
}
}
// Clear the form
Clear();
}
