//
// StatusStrip.cs
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2006 Jonathan Pobst
//
// Authors:
// Jonathan Pobst (monkey@jpobst.com)
//
#if NET_2_0
using System;
using System.Drawing;
using System.ComponentModel;
using System.Runtime.InteropServices;
namespace System.Windows.Forms{
[ClassInterface (ClassInterfaceType.AutoDispatch)]
[ComVisible (true)]
public class StatusStrip : ToolStrip
{
private bool sizing_grip;
public StatusStrip ()
{
SetStyle (ControlStyles.ResizeRedraw, true);
base.CanOverflow = false;
this.GripStyle = ToolStripGripStyle.Hidden;
base.LayoutStyle = ToolStripLayoutStyle.Table;
base.RenderMode = ToolStripRenderMode.System;
this.sizing_grip = true;
base.Stretch = true;
}
#region Public Properties
[DefaultValue (DockStyle.Bottom)]
public override DockStyle Dock {
get { return base.Dock; }
set { base.Dock = value; }
}
[Browsable (false)]
[DefaultValue (false)]
public new bool CanOverflow {
get { return base.CanOverflow; }
set { base.CanOverflow = value; }
}
[DefaultValue (ToolStripGripStyle.Hidden)]
public new ToolStripGripStyle GripStyle {
get { return base.GripStyle; }
set { base.GripStyle = value; }
}
[DefaultValue (ToolStripLayoutStyle.Table)]
public new ToolStripLayoutStyle LayoutStyle {
get { return base.LayoutStyle; }
set { base.LayoutStyle = value; }
}
[Browsable (false)]
public new Padding Padding {
get { return base.Padding; }
set { base.Padding = value; }
}
[DefaultValue (false)]
public new bool ShowItemToolTips {
get { return base.ShowItemToolTips; }
set { base.ShowItemToolTips = value; }
}
[Browsable (false)]
public Rectangle SizeGripBounds {
get { return new Rectangle (this.Width - 12, 0, 12, this.Height); }
}
[DefaultValue (true)]
public bool SizingGrip {
get { return this.sizing_grip; }
set { this.sizing_grip = value; }
}
[DefaultValue (true)]
public new bool Stretch {
get { return base.Stretch; }
set { base.Stretch = value; }
}
#endregion
#region Protected Properties
protected override DockStyle DefaultDock {
get { return DockStyle.Bottom; }
}
protected override Padding DefaultPadding {
get { return new Padding (1, 0, 14, 0); }
}
protected override bool DefaultShowItemToolTips {
get { return false; }
}
protected override Size DefaultSize {
get { return new Size (200, 22); }
}
#endregion
#region Protected Methods
protected override AccessibleObject CreateAccessibilityInstance ()
{
return new StatusStripAccessibleObject ();
}
protected internal override ToolStripItem CreateDefaultItem (string text, Image image, EventHandler onClick)
{
if (text == "-")
return new ToolStripSeparator ();
return new ToolStripLabel (text, image, false, onClick);
}
protected override void Dispose (bool disposing)
{
base.Dispose (disposing);
}
protected override void OnLayout (LayoutEventArgs levent)
{
this.OnSpringTableLayoutCore ();
this.Invalidate ();
}
protected override void OnPaintBackground (PaintEventArgs e)
{
base.OnPaintBackground (e);
if (this.sizing_grip)
this.Renderer.DrawStatusStripSizingGrip (new ToolStripRenderEventArgs (e.Graphics, this, Bounds, SystemColors.Control));
}
protected virtual void OnSpringTableLayoutCore ()
{
if (!this.Created)
return;
ToolStripItemOverflow[] overflow = new ToolStripItemOverflow[this.Items.Count];
ToolStripItemPlacement[] placement = new ToolStripItemPlacement[this.Items.Count];
Size proposedSize = new Size (0, Bounds.Height);
int[] widths = new int[this.Items.Count];
int total_width = 0;
int toolstrip_width = DisplayRectangle.Width;
int i = 0;
int spring_count = 0;
foreach (ToolStripItem tsi in this.Items) {
overflow[i] = tsi.Overflow;
widths[i] = tsi.GetPreferredSize (proposedSize).Width + tsi.Margin.Horizontal;
placement[i] = tsi.Overflow == ToolStripItemOverflow.Always ? ToolStripItemPlacement.None : ToolStripItemPlacement.Main;
placement[i] = tsi.Available && tsi.InternalVisible ? placement[i] : ToolStripItemPlacement.None;
total_width += placement[i] == ToolStripItemPlacement.Main ? widths[i] : 0;
if (tsi is ToolStripStatusLabel && (tsi as ToolStripStatusLabel).Spring)
spring_count++;
i++;
}
while (total_width > toolstrip_width) {
bool removed_one = false;
// Start at the right, removing Overflow.AsNeeded first
for (int j = widths.Length - 1; j >= 0; j--)
if (overflow[j] == ToolStripItemOverflow.AsNeeded && placement[j] == ToolStripItemPlacement.Main) {
placement[j] = ToolStripItemPlacement.None;
total_width -= widths[j];
removed_one = true;
break;
}
// If we didn't remove any AsNeeded ones, we have to start removing Never ones
// These are not put on the Overflow, they are simply not shown
if (!removed_one)
for (int j = widths.Length - 1; j >= 0; j--)
if (overflow[j] == ToolStripItemOverflow.Never && placement[j] == ToolStripItemPlacement.Main) {
placement[j] = ToolStripItemPlacement.None;
total_width -= widths[j];
removed_one = true;
break;
}
// There's nothing left to remove, break or we will loop forever
if (!removed_one)
break;
}
if (spring_count > 0) {
int per_item = (toolstrip_width - total_width) / spring_count;
i = 0;
foreach (ToolStripItem tsi in this.Items) {
if (tsi is ToolStripStatusLabel && (tsi as ToolStripStatusLabel).Spring)
widths[i] += per_item;
i++;
}
}
i = 0;
Point layout_pointer = new Point (this.DisplayRectangle.Left, this.DisplayRectangle.Top);
int button_height = this.DisplayRectangle.Height;
// Now we should know where everything goes, so lay everything out
foreach (ToolStripItem tsi in this.Items) {
tsi.SetPlacement (placement[i]);
if (placement[i] == ToolStripItemPlacement.Main) {
tsi.SetBounds (new Rectangle (layout_pointer.X + tsi.Margin.Left, layout_pointer.Y + tsi.Margin.Top, widths[i] - tsi.Margin.Horizontal, button_height - tsi.Margin.Vertical));
layout_pointer.X += widths[i];
}
i++;
}
this.SetDisplayedItems ();
}
protected override void SetDisplayedItems ()
{
// Only clean the internal collection, without modifying Owner/Parent on items.
this.displayed_items.ClearInternal ();
foreach (ToolStripItem tsi in this.Items)
if (tsi.Placement == ToolStripItemPlacement.Main && tsi.Available) {
this.displayed_items.AddNoOwnerOrLayout (tsi);
tsi.Parent = this;
}
}
protected override void WndProc (ref Message m)
{
switch ((Msg)m.Msg) {
// If the mouse is over the size grip, change the cursor
case Msg.WM_MOUSEMOVE: {
if (FromParamToMouseButtons ((int) m.WParam.ToInt32()) == MouseButtons.None) {
Point p = new Point (LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()));
if (this.SizingGrip && this.SizeGripBounds.Contains (p)) {
this.Cursor = Cursors.SizeNWSE;
return;
} else
this.Cursor = Cursors.Default;
}
break;
}
// If the left mouse button is pushed over the size grip,
// send the WM a message to begin a window resize operation
case Msg.WM_LBUTTONDOWN: {
Point p = new Point (LowOrder ((int)m.LParam.ToInt32 ()), HighOrder ((int)m.LParam.ToInt32 ()));
Form form = FindForm ();
if (this.SizingGrip && this.SizeGripBounds.Contains (p)) {
// For top level forms it's not enoug to send a NCLBUTTONDOWN message, so
// we make a direct call to our XplatUI engine.
if (!form.IsMdiChild)
XplatUI.BeginMoveResize (form.Handle);
XplatUI.SendMessage (form.Handle, Msg.WM_NCLBUTTONDOWN, (IntPtr) HitTest.HTBOTTOMRIGHT, IntPtr.Zero);
return;
}
break;
}
}
base.WndProc (ref m);
}
#endregion
#region Public Events
[Browsable (false)]
public new event EventHandler PaddingChanged {
add { base.PaddingChanged += value; }
remove { base.PaddingChanged -= value; }
}
#endregion
#region StatusStripAccessibleObject
private class StatusStripAccessibleObject : AccessibleObject
{
}
#endregion
}
}
#endif
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