/// <summary>
/// Finds the bounds for the specified item.
/// </summary>
/// <param name="xIndex">The item x index.</param>
/// <param name="yIndex">The item y index.</param>
/// <returns>The item bounds.</returns>
private Rectangle ItemBounds(int xIndex, int yIndex)
{
KListItem item = this[xIndex, yIndex];
int itemX = 0; //(itemSize.Width * xIndex);
int itemY = 0; //(itemSize.Height * yIndex);
if (m_layout == KListLayout.Vertical)
{
Size itemSize = new Size(this.Width, (item.Height > 0 ? item.Height : DefaultItemHeight));
itemY = (yIndex > 0 ? this[xIndex, yIndex - 1].Bounds.Bottom : 0);
return(new Rectangle(0, itemY, this.Width, itemSize.Height));
}
else if (m_layout == KListLayout.Horizontal)
{
Size itemSize = new Size((item.Width > 0 ? item.Width : DefaultItemWidth), this.Height);
itemX = (xIndex > 0 ? this[xIndex - 1, yIndex].Bounds.Right : 0);
return(new Rectangle(itemX, 0, itemSize.Width, this.Height));
}
else
{
Size itemSize = new Size((item.Width > 0 ? item.Width : DefaultItemWidth), (item.Height > 0 ? item.Height : DefaultItemHeight));
itemX = (xIndex > 0 ? this[xIndex, yIndex].Bounds.Right : 0);
itemY = (yIndex > 0 ? this[xIndex, yIndex].Bounds.Bottom : 0);
return(new Rectangle(itemX, itemY, itemSize.Width, itemSize.Height));
}
}
/// <summary>
/// Adds an item.
/// </summary>
/// <param name="text">The text for the item.</param>
/// <param name="value">A value related to the item.</param>
public void AddItem(string text, object value, int size)
{
if (m_layout == KListLayout.Grid)
{
throw new NotSupportedException("List is not in grid mode");
}
KListItem item = new KListItem();
item.Text = text;
item.Value = value;
item.XIndex = m_layout == KListLayout.Vertical ? 0 : m_items.Count;
item.YIndex = m_layout == KListLayout.Horizontal ? 0 :
m_items.Count > 0 ? m_items[0].Count : 0;
if (m_layout == KListLayout.Vertical || m_layout == KListLayout.Grid)
{
item.Height = size;
}
if (m_layout == KListLayout.Horizontal || m_layout == KListLayout.Grid)
{
item.Width = size;
}
AddItem(item);
}
/// <summary>
/// Selects an item.
/// </summary>
private void SelectItem(int xIndex, int yIndex)
{
Point selectedIndex = new Point(xIndex, yIndex);
if (selectedIndex != m_selectedIndex)
{
KListItem item = null;
if (m_items.Count > selectedIndex.X &&
m_items[selectedIndex.X].Count > selectedIndex.Y)
{
item = m_items[selectedIndex.X][selectedIndex.Y];
if (m_selectedItem != null)
{
m_selectedItem.Selected = false;
}
m_selectedIndex = selectedIndex;
m_selectedItem = item;
m_selectedItem.Selected = true;
OnSelectedItemChanged(new EventArgs());
}
}
m_velocity.X = 0;
m_velocity.Y = 0;
}
/// <summary>
/// Removes an item.
/// </summary>
/// <param name="item">The item.</param>
public void RemoveItem(KListItem item)
{
if (m_items.Count > item.XIndex &&
m_items[item.XIndex].Count > item.YIndex)
{
m_items[item.XIndex].RemoveAt(item.YIndex);
}
Reset();
}
/// <summary>
/// Invalidates the item (when visible).
/// </summary>
/// <param name="item">The item.</param>
public void Invalidate(KListItem item)
{
Rectangle itemBounds = item.Bounds;
itemBounds.Offset(-m_offset.X, -m_offset.Y);
if (new Rectangle(0, 0, this.Width, this.Height).IntersectsWith(itemBounds))
{
Invalidate(itemBounds);
}
}
/// <summary>
/// Adds an item.
/// </summary>
/// <param name="item">The item.</param>
internal void AddItem(KListItem item)
{
item.Parent = this;
item.Selected = false;
if (m_items.Count <= item.XIndex)
{
m_items.Add(new List <KListItem>());
}
m_items[item.XIndex].Add(item);
item.Bounds = ItemBounds(item.XIndex, item.YIndex);
Reset();
}
/// <summary>
/// Adds an item.
/// </summary>
/// <param name="x">The x position.</param>
/// <param name="y">The y position.</param>
/// <param name="text">The text for the item.</param>
/// <param name="value">A value related to the item.</param>
private void AddItem(int x, int y, string text, object value)
{
if (m_layout != KListLayout.Grid)
{
throw new NotSupportedException("List is in grid mode");
}
KListItem item = new KListItem();
item.Text = text;
item.Value = value;
item.XIndex = x;
item.YIndex = y;
AddItem(item);
}
/// <summary>
/// Ensures that the item is visible.
/// </summary>
/// <param name="item">A KListItem to make visible.</param>
public void EnsureVisible(KListItem item)
{
if (item != null)
{
if ((-m_offset.X) + item.Bounds.Right > this.Width)
{
m_offset.X = item.Bounds.X - (this.Width - item.Bounds.Width);
}
if ((-m_offset.X) + item.Bounds.X < 0)
{
m_offset.X = item.Bounds.X;
}
if ((-m_offset.Y) + item.Bounds.Bottom > this.Height)
{
m_offset.Y = item.Bounds.Y - (this.Height - item.Bounds.Height);
}
if ((-m_offset.Y) + item.Bounds.Y < 0)
{
m_offset.Y = item.Bounds.Y;
}
}
else
{
//do we need to reset offset?
//m_offset.X = 0;
//m_offset.Y = 0;
}
if (m_offset.X > MaxXOffset)
{
m_offset.X = MaxXOffset;
}
if (m_offset.Y > MaxYOffset)
{
m_offset.Y = MaxYOffset;
}
}
/// <summary>
/// Called when the user releases a mouse button.
/// </summary>
protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp(e);
KListItem item = FindItem(m_mouseDown.X, m_mouseDown.Y);
if (item != null)
{
Size itemSize = item.Bounds.Size;
// Did the click end on the same item it started on?
bool sameX = Math.Abs(e.X - m_mouseDown.X) < itemSize.Width;
bool sameY = Math.Abs(e.Y - m_mouseDown.Y) < itemSize.Height;
if ((m_layout == KListLayout.Vertical && sameY) ||
(m_layout == KListLayout.Horizontal && sameX) ||
(m_layout == KListLayout.Grid && sameX && sameY))
{
// Yes, so select that item.
//Point selectedIndex = FindIndex(e.X, e.Y);
//SelectItem(selectedIndex.X, selectedIndex.Y);
if (item == m_selectedItem)
{
OnSelectedItemClicked(new EventArgs());
}
SelectItem(item.XIndex, item.YIndex);
}
else
{
m_timer.Enabled = true;
}
m_mouseDown.Y = -1;
Capture = false;
Invalidate();
}
}
/// <summary>
/// Paints the control.
/// </summary>
protected override void OnPaint(PaintEventArgs e)
{
if (m_backBuffer != null)
{
if (Skinnable && !Extensions.IsDesignMode(this))
{
m_backBuffer.Clear(Skin.Current.ControlBackColor);
}
else
{
m_backBuffer.Clear(BackColor);
}
base.OnPaint(new PaintEventArgs(m_backBuffer, e.ClipRectangle));
KListItem startItem = FindItem(0, 0);
if (lastItemPaint == null)
{
lastItemPaint = startItem;
}
else if (lastItemPaint != startItem)
{
Tenor.Mobile.Device.Device.HapticSoft();
lastItemPaint = startItem;
}
List <List <KListItem> > .Enumerator xEnumerator = m_items.GetEnumerator();
bool moreX = xEnumerator.MoveNext();
int i = 0;
while (moreX && i < startItem.XIndex)
{
moreX = xEnumerator.MoveNext();
i++;
}
while (moreX)
{
List <KListItem> yList = xEnumerator.Current;
if (yList != null)
{
List <KListItem> .Enumerator yEnumerator = yList.GetEnumerator();
bool moreY = yEnumerator.MoveNext();
int j = 0;
while (moreY && j < startItem.YIndex)
{
moreY = yEnumerator.MoveNext();
j++;
}
while (moreY)
{
KListItem item = yEnumerator.Current;
if (item != null)
{
Rectangle itemRect = item.Bounds;
itemRect.Offset(-m_offset.X, -m_offset.Y);
if (new Rectangle(0, 0, this.Width, this.Height).IntersectsWith(itemRect))
{
if (this.DrawSeparators)
{
using (SolidBrush whitePen = new SolidBrush(SeparatorColor))
{
if (m_layout == KListLayout.Vertical || m_layout == KListLayout.Grid)
{
int borderSize = Convert.ToInt32(1 * scaleFactor.Height);
//m_backBuffer.DrawLine(whitePen, itemRect.Left, itemRect.Top, itemRect.Right, itemRect.Top);
Rectangle rect = new Rectangle(itemRect.Left, itemRect.Bottom - borderSize, itemRect.Width, borderSize);
m_backBuffer.FillRectangle(whitePen, rect);
//m_backBuffer.DrawLine(whitePen, itemRect.Left, itemRect.Bottom - 1, itemRect.Right, itemRect.Bottom - 1);
}
if (m_layout == KListLayout.Horizontal || m_layout == KListLayout.Grid)
{
int borderSize = Convert.ToInt32(1 * scaleFactor.Width);
//m_backBuffer.DrawLine(whitePen, itemRect.Left, itemRect.Top, itemRect.Left, itemRect.Bottom);
Rectangle rect = new Rectangle(itemRect.Right - borderSize, itemRect.Top, borderSize, itemRect.Height);
m_backBuffer.FillRectangle(whitePen, rect);
//m_backBuffer.DrawLine(whitePen, itemRect.Right - 1, itemRect.Top, itemRect.Right - 1, itemRect.Bottom);
}
}
}
if (Skinnable && m_layout == KListLayout.Vertical && !Extensions.IsDesignMode(this))
{
Skin.Current.DrawListItemBackground(m_backBuffer, itemRect, item.YIndex, item.Selected);
}
if (DrawItem == null)
{
item.Render(m_backBuffer, itemRect);
}
else
{
DrawItemEventArgs drawArgs = new DrawItemEventArgs()
{
Graphics = m_backBuffer, Item = item, Bounds = itemRect
};
OnDrawItem(drawArgs);
}
}
else
{
break;
}
}
moreY = yEnumerator.MoveNext();
}
}
moreX = xEnumerator.MoveNext();
if (DrawScrollbar)
{
int scrollSize = 3;
if ((m_layout == KListLayout.Vertical || m_layout == KListLayout.Grid) && MaxYOffset > 0)
{
int scrollHeight = (this.Height * 100) / (MaxYOffset + this.Height); // percentage
if (scrollHeight < 100)
{
int scrollWidth = Convert.ToInt32(scrollSize * scaleFactor.Width);
scrollHeight = (this.Height * scrollHeight) / 100;
int scrollTop = (100 * m_offset.Y) / MaxYOffset;
scrollTop = ((this.Height - scrollHeight) * scrollTop) / 100;
Rectangle scroll = new Rectangle(this.Width - (scrollWidth * 2), scrollTop, scrollWidth, scrollHeight);
SolidBrush brush = new SolidBrush(SystemColors.ScrollBar);
m_backBuffer.FillRectangle(brush, scroll);
}
}
if ((m_layout == KListLayout.Horizontal || m_layout == KListLayout.Grid) && MaxXOffset > 0)
{
int scrollWidth = (this.Width * 100) / (MaxXOffset + this.Width); // percentage
if (scrollWidth < 100)
{
int scrollHeight = Convert.ToInt32(scrollSize * scaleFactor.Height);
scrollWidth = (this.Width * scrollWidth) / 100;
int scrollLeft = (100 * m_offset.X) / MaxXOffset;
scrollLeft = ((this.Width - scrollWidth) * scrollLeft) / 100;
Rectangle scroll = new Rectangle(scrollLeft, this.Height - (scrollHeight * 2), scrollWidth, scrollHeight);
SolidBrush brush = new SolidBrush(SystemColors.ScrollBar);
m_backBuffer.FillRectangle(brush, scroll);
}
}
}
}
e.Graphics.DrawImage(m_backBufferBitmap, 0, 0);
}
else
{
base.OnPaint(e);
}
}
