private void InitializePanel(int index, StatusPanel panel)
{
// Create a hosting panel for the new panel
StatusPanelBorder host = new StatusPanelBorder(this);
host.PaintBackground += new PaintEventHandler(OnPanelPaintBackground);
// Assign across the panel
host.StatusPanel = panel;
// Set correct default border panel (for those defauled)
if (host.StatusPanel.DefaultPanelBorder)
{
host.StatusPanel.PanelBorder = (_style != VisualStyle.Plain) ? PanelBorder.Solid : PanelBorder.Sunken;
}
// Add host to the collection of control
Controls.Add(host);
// Move to correct index
Controls.SetChildIndex(host, index);
// Hook into panel events
panel.RequestedWidthChanged += new EventHandler(OnRepositionPanels);
panel.PanelBorderChanged += new EventHandler(OnRepositionPanels);
panel.AlignmentChanged += new EventHandler(OnRepositionPanels);
panel.TextChanged += new EventHandler(OnRepositionPanels);
panel.ImageChanged += new EventHandler(OnRepositionPanels);
panel.VisibleChanged += new EventHandler(OnRepositionPanels);
panel.AutoSizingChanged += new EventHandler(OnRepositionPanels);
panel.PaintBackground += new PaintEventHandler(OnPanelPaintBackground);
}
/// <summary>
/// Adds the specified StatusPanel object to the collection.
/// </summary>
/// <param name="value">The StatusPanel object to add to the collection.</param>
/// <returns>The StatusPanel object added to the collection.</returns>
public StatusPanel Add(StatusPanel value)
{
// Use base class to process actual collection operation
base.List.Add(value as object);
return(value);
}
private void OnPanelRemoved(int index, object value)
{
// Do nothing until we are created
if (IsHandleCreated && !IsDisposed)
{
// Cast to correct type
StatusPanel panel = value as StatusPanel;
// Unhook from panel events
panel.RequestedWidthChanged -= new EventHandler(OnRepositionPanels);
panel.PanelBorderChanged -= new EventHandler(OnRepositionPanels);
panel.AlignmentChanged -= new EventHandler(OnRepositionPanels);
panel.TextChanged -= new EventHandler(OnRepositionPanels);
panel.ImageChanged -= new EventHandler(OnRepositionPanels);
panel.VisibleChanged -= new EventHandler(OnRepositionPanels);
panel.AutoSizingChanged -= new EventHandler(OnRepositionPanels);
panel.PaintBackground -= new PaintEventHandler(OnPanelPaintBackground);
// Get hosting control from indexed position
StatusPanelBorder host = Controls[index] as StatusPanelBorder;
host.PaintBackground -= new PaintEventHandler(OnPanelPaintBackground);
// Remove it from the collection of children
Controls.Remove(host);
// Ask for all panels to be repositioned
OnRepositionPanels(this, EventArgs.Empty);
}
}
/// <summary>
/// Initializes a new instance of the StatusPanel class.
/// </summary>
/// <param name="parent">Back reference to recover drawing information.</param>
public StatusPanelBorder(StatusBarControl parent)
{
// Prevent drawing flicker by blitting from memory in WM_PAINT
SetStyle(ControlStyles.DoubleBuffer |
ControlStyles.AllPaintingInWmPaint |
ControlStyles.UserPaint, true);
// Remember back pointer
_parent = parent;
// Not hosting a panel to start with
_statusPanel = null;
}
private void OnPanelInserted(int index, object value)
{
// Do not create child controls until we are created
if (IsHandleCreated && !IsDisposed)
{
// Cast to correct type
StatusPanel panel = value as StatusPanel;
// Create hosting border control and add as child
InitializePanel(index, panel);
// Ask for all panels to be repositioned
OnRepositionPanels(this, EventArgs.Empty);
}
}
/// <summary>
/// Returns the index of the first occurrence of the given StatusPanel.
/// </summary>
/// <param name="value">The StatusPanel to locate.</param>
/// <returns>Index of object; otherwise -1</returns>
public int IndexOf(StatusPanel value)
{
// Find the 0 based index of the requested entry
return(base.List.IndexOf(value));
}
/// <summary>
/// Determines whether a StatusPanel is in the collection.
/// </summary>
/// <param name="value">The StatusPanel to locate in the collection.</param>
/// <returns>true if item is found in the collection; otherwise, false.</returns>
public bool Contains(StatusPanel value)
{
// Use base class to process actual collection operation
return(base.List.Contains(value as object));
}
/// <summary>
/// Inserts a StatusPanel instance into the collection at the specified location.
/// </summary>
/// <param name="index">The location in the collection where you want to add the StatusPanel.</param>
/// <param name="value">The StatusPanel object to insert.</param>
public void Insert(int index, StatusPanel value)
{
// Use base class to process actual collection operation
base.List.Insert(index, value as object);
}
/// <summary>
/// Removes a StatusPanel from the collection.
/// </summary>
/// <param name="value">A StatusPanel to remove from the collection.</param>
public void Remove(StatusPanel value)
{
// Use base class to process actual collection operation
base.List.Remove(value as object);
}
