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|
// 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) 2004 Novell, Inc. (http://www.novell.com)
//
// Author:
// Ravindra (rkumar@novell.com)
//
// Todo:
// - Drawing of focus rectangle
// NOT COMPLETE
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Runtime.Serialization;
namespace System.Windows.Forms
{
[DefaultProperty ("Text")]
[DesignTimeVisible (false)]
[Serializable]
[ToolboxItem (false)]
[TypeConverter (typeof (ListViewItemConverter))]
public class ListViewItem : ICloneable, ISerializable
{
#region Instance Variables
private int image_index = -1;
private bool is_checked = false;
private bool is_focused = false;
private int state_image_index = -1;
private ListViewSubItemCollection sub_items;
private object tag;
private bool use_item_style = true;
// internal variables
internal Rectangle checkbox_rect; // calculated by CalcListViewItem method
internal Rectangle entire_rect;
internal Rectangle icon_rect;
internal Rectangle item_rect;
internal Rectangle label_rect;
internal Point location = Point.Empty; // set by the ListView control
internal ListView owner;
internal bool selected;
#endregion Instance Variables
#region Public Constructors
public ListViewItem ()
{
this.sub_items = new ListViewSubItemCollection (this);
this.sub_items.Add ("");
}
public ListViewItem (string text) : this (text, -1)
{
}
public ListViewItem (string [] items) : this (items, -1)
{
}
public ListViewItem (ListViewItem.ListViewSubItem [] subItems, int imageIndex)
{
this.sub_items = new ListViewSubItemCollection (this);
this.sub_items.AddRange (subItems);
this.image_index = imageIndex;
}
public ListViewItem (string text, int imageIndex)
{
this.image_index = imageIndex;
this.sub_items = new ListViewSubItemCollection (this);
this.sub_items.Add (text);
}
public ListViewItem (string [] items, int imageIndex)
{
this.sub_items = new ListViewSubItemCollection (this);
this.sub_items.AddRange (items);
this.image_index = imageIndex;
}
public ListViewItem (string [] items, int imageIndex, Color foreColor,
Color backColor, Font font)
{
this.sub_items = new ListViewSubItemCollection (this);
this.sub_items.AddRange (items);
this.image_index = imageIndex;
ForeColor = foreColor;
BackColor = backColor;
Font = font;
}
#endregion // Public Constructors
#region Public Instance Properties
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public Color BackColor {
get {
if (sub_items.Count > 0)
return sub_items[0].BackColor;
if (owner != null)
return owner.BackColor;
return ThemeEngine.Current.ColorWindow;
}
set { sub_items[0].BackColor = value; }
}
[Browsable (false)]
public Rectangle Bounds {
get {
return GetBounds (ItemBoundsPortion.Entire);
}
}
[DefaultValue (false)]
[RefreshProperties (RefreshProperties.Repaint)]
public bool Checked {
get { return is_checked; }
set {
if (is_checked == value)
return;
if (owner != null) {
is_checked = value;
if (is_checked) {
if (owner.CheckedItems.Contains (this) == false) {
owner.CheckedItems.list.Add (this);
owner.CheckedIndices.list.Add (this.Index);
}
}
else {
owner.CheckedItems.list.Remove (this);
owner.CheckedIndices.list.Remove (this.Index);
}
owner.Invalidate (Bounds);
}
}
}
[Browsable (false)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public bool Focused {
get { return is_focused; }
set {
if (is_focused == value)
return;
is_focused = value;
if (owner != null)
owner.Invalidate (Bounds);
}
}
[Localizable (true)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public Font Font {
get {
if (sub_items.Count > 0)
return sub_items[0].Font;
if (owner != null)
return owner.Font;
return ThemeEngine.Current.DefaultFont;
}
set {
if (sub_items[0].Font == value)
return;
sub_items[0].Font = value;
if (owner != null)
owner.Invalidate (Bounds);
}
}
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public Color ForeColor {
get {
if (sub_items.Count > 0)
return sub_items[0].ForeColor;
if (owner != null)
return owner.ForeColor;
return ThemeEngine.Current.ColorWindowText;
}
set { sub_items[0].ForeColor = value; }
}
[DefaultValue (-1)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
[Editor ("System.Windows.Forms.Design.ImageIndexEditor, " + Consts.AssemblySystem_Design,
typeof (System.Drawing.Design.UITypeEditor))]
[Localizable (true)]
[TypeConverter (typeof (ImageIndexConverter))]
public int ImageIndex {
get { return image_index; }
set {
if (value < -1)
throw new ArgumentException ("Invalid ImageIndex. It must be greater than or equal to -1.");
image_index = value;
if (owner != null)
owner.Invalidate (Bounds);
}
}
[Browsable (false)]
public ImageList ImageList {
get {
if (owner == null)
return null;
else if (owner.View == View.LargeIcon)
return owner.large_image_list;
else
return owner.small_image_list;
}
}
[Browsable (false)]
public int Index {
get {
if (owner == null)
return -1;
else
return owner.Items.IndexOf (this);
}
}
[Browsable (false)]
public ListView ListView {
get { return owner; }
}
[Browsable (false)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public bool Selected {
get { return selected; }
set {
if (owner != null) {
if (owner.CanMultiselect == false &&
owner.SelectedItems.Count > 0) {
owner.SelectedItems.Clear ();
owner.SelectedIndices.list.Clear ();
}
selected = value;
if (selected) {
if (owner.SelectedItems.Contains (this) == false) {
owner.SelectedItems.list.Add (this);
owner.SelectedIndices.list.Add (this.Index);
}
}
else {
owner.SelectedItems.list.Remove (this);
owner.SelectedIndices.list.Remove (this.Index);
}
owner.Invalidate (Bounds);
}
}
}
[DefaultValue (-1)]
[Editor ("System.Windows.Forms.Design.ImageIndexEditor, " + Consts.AssemblySystem_Design,
typeof (System.Drawing.Design.UITypeEditor))]
[Localizable (true)]
[TypeConverter (typeof (ImageIndexConverter))]
public int StateImageIndex {
get { return state_image_index; }
set {
if (value < -1 || value > 14)
throw new ArgumentOutOfRangeException ("Invalid StateImageIndex. It must be in the range of [-1, 14].");
state_image_index = value;
}
}
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public ListViewSubItemCollection SubItems {
get { return sub_items; }
}
[Bindable (true)]
[DefaultValue (null)]
[Localizable (false)]
[TypeConverter (typeof (StringConverter))]
public object Tag {
get { return tag; }
set { tag = value; }
}
[Localizable (true)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public string Text {
get {
if (this.sub_items.Count > 0)
return this.sub_items [0].Text;
else
return "";
}
set { this.sub_items [0].Text = value; }
}
[DefaultValue (true)]
public bool UseItemStyleForSubItems {
get { return use_item_style; }
set { use_item_style = value; }
}
#endregion // Public Instance Properties
#region Public Instance Methods
public void BeginEdit ()
{
// FIXME: TODO
// if (owner != null && owner.LabelEdit
// && owner.Activation == ItemActivation.Standard)
// allow editing
// else
// throw new InvalidOperationException ();
}
public virtual object Clone ()
{
ListViewItem clone = new ListViewItem ();
clone.image_index = this.image_index;
clone.is_checked = this.is_checked;
clone.is_focused = this.is_focused;
clone.selected = this.selected;
clone.state_image_index = this.state_image_index;
clone.sub_items = new ListViewSubItemCollection (this);
foreach (ListViewSubItem subItem in this.sub_items)
clone.sub_items.Add (subItem.Text, subItem.ForeColor,
subItem.BackColor, subItem.Font);
clone.tag = this.tag;
clone.use_item_style = this.use_item_style;
clone.owner = null;
return clone;
}
public virtual void EnsureVisible ()
{
if (this.owner != null) {
owner.EnsureVisible (owner.Items.IndexOf (this));
}
}
public Rectangle GetBounds (ItemBoundsPortion portion)
{
if (owner == null)
return Rectangle.Empty;
/* Original Ravi's design calculated all items in a virtual space
We convert them real screen positions
*/
switch (portion) {
case ItemBoundsPortion.Icon: {
Rectangle rect = icon_rect;
rect.X -= owner.h_marker;
rect.Y -= owner.v_marker;
return rect;
}
case ItemBoundsPortion.Label: {
Rectangle rect = label_rect;
rect.X -= owner.h_marker;
rect.Y -= owner.v_marker;
return rect;
}
case ItemBoundsPortion.ItemOnly: {
Rectangle rect = item_rect;
rect.X -= owner.h_marker;
rect.Y -= owner.v_marker;
return rect;
}
case ItemBoundsPortion.Entire: {
Rectangle rect = entire_rect;
rect.X -= owner.h_marker;
rect.Y -= owner.v_marker;
return rect;
}
default:
throw new ArgumentException ("Invalid value for portion.");
}
}
void ISerializable.GetObjectData (SerializationInfo info, StreamingContext context)
{
// FIXME: TODO
}
public virtual void Remove ()
{
if (owner != null)
owner.Items.Remove (this);
owner = null;
}
public override string ToString ()
{
return string.Format ("ListViewItem: {0}", this.Text);
}
#endregion // Public Instance Methods
#region Protected Methods
protected virtual void Deserialize (SerializationInfo info, StreamingContext context)
{
// FIXME: TODO
}
protected virtual void Serialize (SerializationInfo info, StreamingContext context)
{
// FIXME: TODO
}
#endregion // Protected Methods
#region Private Internal Methods
internal Rectangle CheckRectReal {
get {
Rectangle rect = checkbox_rect;
rect.X -= owner.h_marker;
rect.Y -= owner.v_marker;
return rect;
}
}
internal Rectangle CheckRect {
get { return this.checkbox_rect; }
}
internal Rectangle EntireRect {
get { return this.entire_rect; }
}
internal Rectangle IconRect {
get { return this.icon_rect; }
}
internal Rectangle LabelRect {
get { return this.label_rect; }
}
internal void CalcListViewItem ()
{
int item_ht;
Size text_size = owner.text_size;
if (owner.CheckBoxes)
checkbox_rect.Size = owner.CheckBoxSize;
else
checkbox_rect = Rectangle.Empty;
checkbox_rect.Location = this.location;
switch (owner.View) {
case View.Details:
// LAMESPEC: MSDN says, "In all views except the details
// view of the ListView, this value specifies the same
// bounding rectangle as the Entire value." Actually, it
// returns same bounding rectangles for Item and Entire
// values in the case of Details view.
icon_rect.X = checkbox_rect.X + checkbox_rect.Width + 2;
icon_rect.Y = checkbox_rect.Y;
item_ht = Math.Max (owner.CheckBoxSize.Height + 1,
text_size.Height);
if (owner.SmallImageList != null) {
item_ht = Math.Max (item_ht,
owner.SmallImageList.ImageSize.Height + 1);
icon_rect.Width = owner.SmallImageList.ImageSize.Width;
}
else
icon_rect.Width = 0;
label_rect.Height = checkbox_rect.Height = icon_rect.Height = item_ht;
label_rect.X = icon_rect.X + icon_rect.Width;
label_rect.Y = icon_rect.Y;
if (owner.Columns.Count > 0)
label_rect.Width = Math.Max (text_size.Width, owner.Columns[0].Wd);
else
label_rect.Width = text_size.Width;
item_rect = entire_rect = Rectangle.Union
(Rectangle.Union (checkbox_rect, icon_rect), label_rect);
// Take into account the rest of columns. First column
// is already taken into account above.
for (int i = 1; i < owner.Columns.Count; i++) {
item_rect.Width += owner.Columns [i].Wd;
entire_rect.Width += owner.Columns [i].Wd;
}
break;
case View.LargeIcon:
if (owner.LargeImageList != null) {
icon_rect.Width = owner.LargeImageList.ImageSize.Width + 16;
icon_rect.Height = owner.LargeImageList.ImageSize.Height + 4;
}
else {
icon_rect.Width = 16;
icon_rect.Height = 4;
}
if (text_size.Width <= (checkbox_rect.Width + icon_rect.Width)) {
icon_rect.X = checkbox_rect.X + checkbox_rect.Width;
icon_rect.Y = checkbox_rect.Y;
label_rect.X = icon_rect.X + (icon_rect.Width
- text_size.Width) / 2;
label_rect.Y = Math.Max (checkbox_rect.Bottom,
icon_rect.Bottom) + 2;
label_rect.Size = text_size;
}
else {
label_rect.X = this.location.X;
int centerX = label_rect.X + text_size.Width / 2;
icon_rect.X = centerX - icon_rect.Width / 2;
checkbox_rect.X = (icon_rect.X - checkbox_rect.Width);
icon_rect.Y = checkbox_rect.Y;
label_rect.Y = Math.Max (checkbox_rect.Bottom,
icon_rect.Bottom) + 2;
label_rect.Size = text_size;
}
item_rect = Rectangle.Union (icon_rect, label_rect);
entire_rect = Rectangle.Union (item_rect, checkbox_rect);
break;
case View.List:
goto case View.SmallIcon;
case View.SmallIcon:
icon_rect.X = checkbox_rect.X + checkbox_rect.Width;
icon_rect.Y = checkbox_rect.Y;
item_ht = Math.Max (owner.CheckBoxSize.Height, text_size.Height);
if (owner.SmallImageList != null) {
item_ht = Math.Max (item_ht,
owner.SmallImageList.ImageSize.Height + 1);
icon_rect.Width = owner.SmallImageList.ImageSize.Width;
}
else
icon_rect.Width = 0;
label_rect.Height = checkbox_rect.Height = icon_rect.Height = item_ht;
label_rect.X = icon_rect.X + icon_rect.Width;
label_rect.Y = icon_rect.Y;
label_rect.Width = text_size.Width;
item_rect = Rectangle.Union (icon_rect, label_rect);
entire_rect = Rectangle.Union (item_rect, checkbox_rect);
break;
}
}
#endregion // Private Internal Methods
#region Subclasses
[DefaultProperty ("Text")]
[DesignTimeVisible (false)]
[Serializable]
[ToolboxItem (false)]
[TypeConverter (typeof(ListViewSubItemConverter))]
public class ListViewSubItem
{
private Color back_color;
private Font font;
private Color fore_color;
internal ListViewItem owner;
private string text;
#region Public Constructors
public ListViewSubItem ()
{
}
public ListViewSubItem (ListViewItem owner, string text)
: this (owner, text, ThemeEngine.Current.ColorWindowText,
ThemeEngine.Current.ColorWindow,
ThemeEngine.Current.DefaultFont)
{
}
public ListViewSubItem (ListViewItem owner, string text, Color foreColor,
Color backColor, Font font)
{
this.owner = owner;
this.text = text;
this.fore_color = foreColor;
this.back_color = backColor;
this.font = font;
}
#endregion // Public Constructors
#region Public Instance Properties
public Color BackColor {
get { return back_color; }
set {
back_color = value;
Invalidate ();
}
}
[Localizable (true)]
public Font Font {
get {
if (font != null)
return font;
else if (owner != null)
return owner.Font;
return font;
}
set {
font = value;
Invalidate ();
}
}
public Color ForeColor {
get { return fore_color; }
set {
fore_color = value;
Invalidate ();
}
}
[Localizable (true)]
public string Text {
get { return text; }
set {
text = value;
Invalidate ();
}
}
#endregion // Public Instance Properties
#region Public Methods
public void ResetStyle ()
{
font = ThemeEngine.Current.DefaultFont;
back_color = ThemeEngine.Current.DefaultControlBackColor;
fore_color = ThemeEngine.Current.DefaultControlForeColor;
Invalidate ();
}
public override string ToString ()
{
return string.Format ("ListViewSubItem {{0}}", text);
}
#endregion // Public Methods
#region Private Methods
private void Invalidate ()
{
if (owner == null || owner.owner == null)
return;
owner.owner.Invalidate ();
}
#endregion // Private Methods
}
public class ListViewSubItemCollection : IList, ICollection, IEnumerable
{
private ArrayList list;
internal ListViewItem owner;
#region Public Constructors
public ListViewSubItemCollection (ListViewItem owner)
{
this.owner = owner;
this.list = new ArrayList ();
}
#endregion // Public Constructors
#region Public Properties
[Browsable (false)]
public virtual int Count {
get { return list.Count; }
}
public virtual bool IsReadOnly {
get { return false; }
}
public ListViewSubItem this [int index] {
get { return (ListViewSubItem) list [index]; }
set {
value.owner = this.owner;
list [index] = value;
}
}
bool ICollection.IsSynchronized {
get { return list.IsSynchronized; }
}
object ICollection.SyncRoot {
get { return list.SyncRoot; }
}
bool IList.IsFixedSize {
get { return list.IsFixedSize; }
}
object IList.this [int index] {
get { return this [index]; }
set {
if (! (value is ListViewSubItem))
throw new ArgumentException ("Not of type ListViewSubItem", "value");
this [index] = (ListViewSubItem) value;
}
}
#endregion // Public Properties
#region Public Methods
public ListViewSubItem Add (ListViewSubItem item)
{
item.owner = this.owner;
list.Add (item);
return item;
}
public ListViewSubItem Add (string text)
{
ListViewSubItem item = new ListViewSubItem (this.owner, text);
list.Add (item);
return item;
}
public ListViewSubItem Add (string text, Color foreColor,
Color backColor, Font font)
{
ListViewSubItem item = new ListViewSubItem (this.owner, text,
foreColor, backColor, font);
list.Add (item);
return item;
}
public void AddRange (ListViewSubItem [] items)
{
this.Clear ();
foreach (ListViewSubItem item in items)
this.Add (item);
}
public void AddRange (string [] items)
{
this.Clear ();
foreach (string item in items)
this.Add (item);
}
public void AddRange (string [] items, Color foreColor,
Color backColor, Font font)
{
this.Clear ();
foreach (string item in items)
this.Add (item, foreColor, backColor, font);
}
public virtual void Clear ()
{
list.Clear ();
}
public bool Contains (ListViewSubItem item)
{
return list.Contains (item);
}
public virtual IEnumerator GetEnumerator ()
{
return list.GetEnumerator ();
}
void ICollection.CopyTo (Array dest, int index)
{
list.CopyTo (dest, index);
}
int IList.Add (object item)
{
if (! (item is ListViewSubItem)) {
throw new ArgumentException ("Not of type ListViewSubItem", "item");
}
ListViewSubItem sub_item = (ListViewSubItem) item;
sub_item.owner = this.owner;
return list.Add (sub_item);
}
bool IList.Contains (object subItem)
{
if (! (subItem is ListViewSubItem)) {
throw new ArgumentException ("Not of type ListViewSubItem", "subItem");
}
return this.Contains ((ListViewSubItem) subItem);
}
int IList.IndexOf (object subItem)
{
if (! (subItem is ListViewSubItem)) {
throw new ArgumentException ("Not of type ListViewSubItem", "subItem");
}
return this.IndexOf ((ListViewSubItem) subItem);
}
void IList.Insert (int index, object item)
{
if (! (item is ListViewSubItem)) {
throw new ArgumentException ("Not of type ListViewSubItem", "item");
}
this.Insert (index, (ListViewSubItem) item);
}
void IList.Remove (object item)
{
if (! (item is ListViewSubItem)) {
throw new ArgumentException ("Not of type ListViewSubItem", "item");
}
this.Remove ((ListViewSubItem) item);
}
public int IndexOf (ListViewSubItem subItem)
{
return list.IndexOf (subItem);
}
public void Insert (int index, ListViewSubItem item)
{
item.owner = this.owner;
list.Insert (index, item);
}
public void Remove (ListViewSubItem item)
{
list.Remove (item);
}
public virtual void RemoveAt (int index)
{
list.RemoveAt (index);
}
#endregion // Public Methods
}
#endregion // Subclasses
}
}
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