protected override void OnMouseUp(MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
if (columnSizingState == ColumnSizingState.Active)
{
columnSizingState = ColumnSizingState.Normal;
Cursor = Cursors.Default;
Invalidate();
}
else if (statePressedCheckBox != null)
{
statePressedCheckBox.StateCheckBox = ItemCheckBoxState.Normal;
if (statePressedCheckBox.BoundsCheckBox.Contains(e.Location))
{
statePressedCheckBox.CheckState = (statePressedCheckBox.CheckState == CheckState.Unchecked
? CheckState.Checked
: CheckState.Unchecked);
}
statePressedCheckBox = null;
Invalidate();
}
}
base.OnMouseUp(e);
}
protected override void OnMouseLeave(EventArgs e)
{
bool invalidate = false;
if (stateHotItem != null)
{
stateHotItem = null;
invalidate = true;
}
if (columnSizingState != ColumnSizingState.Normal)
{
columnSizingState = ColumnSizingState.Normal;
invalidate = true;
}
if (invalidate)
{
Invalidate();
}
base.OnMouseLeave(e);
}
protected override void OnMouseDown(MouseEventArgs e)
{
Focus();
if (e.Button == MouseButtons.Left)
{
if (columnSizingState == ColumnSizingState.Hot)
{
columnSizingState = ColumnSizingState.Active;
int x = ClientRectangleInner.Width - (descriptionWidth + 6 - 2);
columnSizingOffset = e.X - x;
Invalidate();
}
else if (stateHotItem != null)
{
if (stateHotItem.CheckEnabled && stateHotItem.StateCheckBox == ItemCheckBoxState.Hot)
{
stateHotItem.StateCheckBox = ItemCheckBoxState.Pressed;
statePressedCheckBox = stateHotItem;
Invalidate();
}
else if (stateHotItem.BoundsIcon.Contains(e.Location))
{
Item i = stateHotItem;
using (ColorDialog dialog = new ColorDialog()) {
dialog.Color = i.Color;
dialog.ShowDialog(this);
i.Color = dialog.Color;
Invalidate();
}
}
else
{
stateFocusedItem = stateHotItem;
stateSelectedItem = true;
if (!EnsureVisible(stateFocusedItem))
{
Invalidate();
}
OnItemSelectionChanged();
}
}
else
{
if (stateSelectedItem)
{
stateSelectedItem = false;
Invalidate();
OnItemSelectionChanged();
}
}
}
base.OnMouseDown(e);
}
protected override void OnMouseMove(MouseEventArgs e)
{
int x = ClientRectangleInner.Width - (descriptionWidth + 6 - 2);
if (columnSizingState == ColumnSizingState.Active)
{
int newWidth = ClientRectangleInner.Width - e.X + (columnSizingOffset - 6 + 2);
if (newWidth > descriptionMaxWidth)
{
newWidth = descriptionMaxWidth;
}
else if (newWidth < descriptionMinWidth)
{
newWidth = descriptionMinWidth;
}
if (descriptionWidth != newWidth)
{
descriptionWidth = newWidth;
Invalidate();
}
}
else if (items.Count > 0 && x - 5 < e.X && x + 2 > e.X)
{
if (columnSizingState == ColumnSizingState.Normal)
{
columnSizingState = ColumnSizingState.Hot;
Cursor = Cursors.SizeWE;
Invalidate();
}
}
else
{
if (columnSizingState == ColumnSizingState.Hot)
{
columnSizingState = ColumnSizingState.Normal;
Cursor = Cursors.Default;
Invalidate();
}
int offset = (e.Y + vScrollBar.Value - 2);
int index = offset / (rowHeight - 1);
if (index < 0 || index >= items.Count || e.X < ClientRectangleInner.Left + 1 || e.X > ClientRectangleInner.Width - 1)
{
if (stateHotItem != null)
{
stateHotItem.StateCheckBox = ItemCheckBoxState.Normal;
stateHotItem = null;
Invalidate();
}
}
else
{
bool doRepaint = false;
if (stateHotItem != items[index])
{
stateHotItem = items[index];
doRepaint = true;
}
bool s = stateHotItem.BoundsCheckBox.Contains(e.Location);
if (!s && stateHotItem.StateCheckBox == ItemCheckBoxState.Hot)
{
stateHotItem.StateCheckBox = ItemCheckBoxState.Normal;
doRepaint = true;
}
else if (s && stateHotItem.StateCheckBox == ItemCheckBoxState.Normal)
{
stateHotItem.StateCheckBox = ItemCheckBoxState.Hot;
doRepaint = true;
}
if (doRepaint)
{
Invalidate();
}
}
}
base.OnMouseMove(e);
}
