protected override void OnPaint(PaintEventArgs e)
{
// used for double-buffering
Graphics offscreen = Graphics.FromImage(_imageBuffer);
offscreen.FillRectangle(_nohlightBrush, 0, 0, this.Size.Width, this.Size.Height);
int itemSpace = this.Size.Height / NUM_ITEMS_VISIBLE;
int textHeight = (int)e.Graphics.MeasureString("Hgllyf!", this.Font).Height;
int itemOffset = (itemSpace - textHeight) / 2;
int top = itemOffset;
for (int i = 0; i < (NUM_ITEMS_VISIBLE - 1); i++)
{
if ((i + _firstIndex) >= _items.Count)
{
break;
}
IPhoneListViewItem item = (IPhoneListViewItem)_items[i + _firstIndex];
item.Width = this.Size.Width;
drawItemHelper(offscreen, item.Label, item.Enabled, i, top, itemSpace, itemOffset, item.Font);
top += itemSpace;
}
if (((NUM_ITEMS_VISIBLE) + _firstIndex) < _items.Count)
{
_moreButtonUsed = true;
drawItemHelper(offscreen, MORE_LABEL, true, NUM_ITEMS_VISIBLE - 1, top, itemSpace, itemOffset, this.Font);
}
else if (((NUM_ITEMS_VISIBLE) + _firstIndex) == _items.Count)
{
_moreButtonUsed = false;
IPhoneListViewItem item =
(IPhoneListViewItem)_items[NUM_ITEMS_VISIBLE - 1 + _firstIndex];
item.Width = this.Size.Width;
drawItemHelper(offscreen, item.Label, item.Enabled, NUM_ITEMS_VISIBLE - 1, top, itemSpace, itemOffset, item.Font);
}
e.Graphics.DrawImage(_imageBuffer, 0, 0);
if (_activateNow)
{
_activateNow = false;
IPhoneListViewItem item =
(IPhoneListViewItem)_items[_firstIndex + _selectedIndex];
item.Activate();
if (ItemActivated != null)
{
ItemActivated(this, new EventArgs());
}
}
}
public void AddItem(IPhoneListViewItem item)
{
item.Font = this.Font;
_items.Add(item);
item.Changed += new EventHandler(this.itemChanged);
this.Invalidate();
}
public void RemoveItemAt(int idx)
{
IPhoneListViewItem item = (IPhoneListViewItem)_items[idx];
_items.RemoveAt(idx);
item.Changed -= new EventHandler(this.itemChanged);
if (_firstIndex >= _items.Count)
{
_firstIndex = 0;
}
this.Invalidate();
}
/*
* Process Method
*/
public override ConcreteInteractionObject Process(ListItemNode node,
ConcreteInteractionObject cio,
UIGenerator ui)
{
if (node.Decorations[ItemDecision.DECISION_KEY] == null &&
node is CIOListItemNode &&
!((PanelDecision)node.Decorations[PanelDecision.DECISION_KEY]).IsPanel &&
cio is PhoneListViewCIO)
{
// the item node represents an appliance object and it will be
// contained within a list
CIOListItemNode item = (CIOListItemNode)node;
PhoneListViewCIO list = (PhoneListViewCIO)cio;
IPhoneListViewItem listItem = (IPhoneListViewItem)item.CIO;
list.AddItem(listItem);
item.Decorations[ItemDecision.DECISION_KEY] =
new ListItemDecision(listItem);
}
return(cio);
}
public ListItemDecision(IPhoneListViewItem item, Decision rootDecision)
: base(rootDecision)
{
_listItem = item;
}
/*
* Constructors
*/
public ListItemDecision(IPhoneListViewItem item)
: base()
{
_listItem = item;
}
protected void list_keyDown(object source, KeyEventArgs e)
{
switch (e.KeyCode)
{
case Keys.Return:
if (_selectedIndex == (NUM_ITEMS_VISIBLE - 1) &&
_moreButtonUsed)
{
activateMoreButton();
}
else
{
// do something else for other activations
IPhoneListViewItem item =
(IPhoneListViewItem)_items[_firstIndex + _selectedIndex];
item.Activate();
if (ItemActivated != null)
{
ItemActivated(this, new EventArgs());
}
}
break;
case Keys.Up:
if (_selectedIndex != 0)
{
changeSelectedIndex(_selectedIndex - 1);
this.Invalidate();
e.Handled = true;
}
break;
case Keys.Down:
if (_selectedIndex < (NUM_ITEMS_VISIBLE - 1) &&
(_selectedIndex + _firstIndex) < (_items.Count - 1))
{
changeSelectedIndex(_selectedIndex + 1);
this.Invalidate();
e.Handled = true;
}
break;
case Keys.D1:
changeSelectedIndex(0);
_activateNow = true;
this.Invalidate();
e.Handled = true;
break;
case Keys.D2:
if ((_firstIndex + 1) >= _items.Count)
{
break;
}
changeSelectedIndex(1);
_activateNow = true;
this.Invalidate();
e.Handled = true;
break;
case Keys.D3:
if ((_firstIndex + 2) >= _items.Count)
{
break;
}
changeSelectedIndex(2);
_activateNow = true;
this.Invalidate();
e.Handled = true;
break;
case Keys.D4:
if ((_firstIndex + 3) >= _items.Count)
{
break;
}
changeSelectedIndex(3);
_activateNow = true;
this.Invalidate();
e.Handled = true;
break;
case Keys.D5:
if ((_firstIndex + 4) >= _items.Count)
{
break;
}
changeSelectedIndex(4);
_activateNow = true;
this.Invalidate();
e.Handled = true;
break;
case Keys.D6:
if ((_firstIndex + 5) >= _items.Count)
{
break;
}
changeSelectedIndex(5);
_activateNow = true;
this.Invalidate();
e.Handled = true;
break;
case Keys.D7:
if ((_firstIndex + 6) >= _items.Count)
{
break;
}
changeSelectedIndex(6);
_activateNow = true;
this.Invalidate();
e.Handled = true;
break;
case Keys.D8:
if ((_firstIndex + 7) >= _items.Count)
{
break;
}
changeSelectedIndex(7);
_activateNow = true;
this.Invalidate();
e.Handled = true;
break;
case Keys.D9:
if ((_firstIndex + 8) >= _items.Count)
{
break;
}
changeSelectedIndex(8);
if (_moreButtonUsed)
{
activateMoreButton();
}
else
{
_activateNow = true;
}
this.Invalidate();
e.Handled = true;
break;
/*
* default:
* MessageBox.Show( "Code: " + e.KeyCode.ToString() );
* e.Handled = true;
* break;
*/
}
}
/*
* Member Methods
*/
public void AddItem(IPhoneListViewItem item)
{
((PhoneListView)GetControl()).AddItem(item);
}
