public virtual Object StartDrag(ObjectListView olv, MouseButtons button, OLVListItem item) {
// We only drag on left mouse
if (button != MouseButtons.Left)
return null;
return this.CreateDataObject(olv);
}
static private void ReplaceColumns(ObjectListView olv, IList<OLVColumn> columns) {
olv.Clear();
olv.AllColumns.Clear();
if (columns.Count > 0) {
olv.AllColumns.AddRange(columns);
olv.RebuildColumns();
}
}
static public void GenerateColumns(ObjectListView olv, IEnumerable enumerable) {
// Generate columns based on the type of the first model in the collection and then quit
foreach (object model in enumerable) {
Generator.GenerateColumns(olv, model.GetType());
return;
}
// If we reach here, the collection was empty, so we clear the list
Generator.ReplaceColumns(olv, new List<OLVColumn>());
}
public OLVDataObject(ObjectListView olv) : this(olv, olv.SelectedObjects) {
}
public TextMatchFilter(ObjectListView olv, string text, StringComparison comparison) {
this.ListView = olv;
this.Text = text;
this.StringComparison = comparison;
}
public TextMatchFilter(ObjectListView olv) {
this.ListView = olv;
}
/// <summary>
/// Draw this overlay
/// </summary>
/// <param name="olv">The ObjectListView being decorated</param>
/// <param name="g">The Graphics used for drawing</param>
/// <param name="r">The bounds of the rendering</param>
public override void Draw(ObjectListView olv, Graphics g, Rectangle r) {
if (String.IsNullOrEmpty(this.Text))
return;
// Calculate the bounds of the text, and then move it to where it should be
Rectangle textRect = this.CalculateTextBounds(g, r, this.Text);
textRect.Location = this.Location;
// Make sure the billboard is within the bounds of the List, as far as is possible
if (textRect.Right > r.Width)
textRect.X = Math.Max(r.Left, r.Width - textRect.Width);
if (textRect.Bottom > r.Height)
textRect.Y = Math.Max(r.Top, r.Height - textRect.Height);
this.DrawBorderedText(g, textRect, this.Text, 255);
}
public static int SetGroupImageList(ObjectListView olv, ImageList il) {
const int LVSIL_GROUPHEADER = 3;
IntPtr handle = IntPtr.Zero;
if (il != null)
handle = il.Handle;
return (int)NativeMethods.SendMessage(olv.Handle, LVM_SETIMAGELIST, LVSIL_GROUPHEADER, handle);
}
public static int SetGroupInfo(ObjectListView olv, int groupId, LVGROUP2 group) {
return (int)NativeMethods.SendMessage(olv.Handle, LVM_SETGROUPINFO, groupId, ref group);
}
public static GroupState GetGroupState(ObjectListView olv, int groupId, GroupState mask) {
return (GroupState)NativeMethods.SendMessage(olv.Handle, LVM_GETGROUPSTATE, groupId, (int)mask);
}
public override void Draw(ObjectListView olv, Graphics g, Rectangle r) {
Rectangle bounds = this.CalculateBounds();
if (!bounds.IsEmpty)
this.DrawFilledBorder(g, bounds);
}
public override void Draw(ObjectListView olv, Graphics g, Rectangle r) {
// This overlay only works when:
// - the list is in Details view
// - there is at least one row
// - there is a selected column
if (olv.View != System.Windows.Forms.View.Details)
return;
if (olv.GetItemCount() == 0)
return;
OLVColumn column = this.ColumnToTint ?? olv.SelectedColumn;
if (column == null)
return;
Point sides = NativeMethods.GetScrolledColumnSides(olv, column.Index);
if (sides.X == -1)
return;
Rectangle columnBounds = new Rectangle(sides.X, r.Top, sides.Y - sides.X, r.Bottom);
// Find the bottom of the last item. The tinting should extend only to there.
OLVListItem lastItem = olv.GetLastItemInDisplayOrder();
if (lastItem != null) {
Rectangle lastItemBounds = lastItem.Bounds;
if (!lastItemBounds.IsEmpty && lastItemBounds.Bottom < columnBounds.Bottom)
columnBounds.Height = lastItemBounds.Bottom - columnBounds.Top;
}
g.FillRectangle(this.tintBrush, columnBounds);
}
public AutoCompleteCellEditor(ObjectListView lv, OLVColumn column) {
this.DropDownStyle = ComboBoxStyle.DropDown;
Dictionary<String, bool> alreadySeen = new Dictionary<string, bool>();
for (int i = 0; i < Math.Min(lv.GetItemCount(), 1000); i++) {
String str = column.GetStringValue(lv.GetModelObject(i));
if (!alreadySeen.ContainsKey(str)) {
this.Items.Add(str);
alreadySeen[str] = true;
}
}
this.Sorted = true;
this.AutoCompleteSource = AutoCompleteSource.ListItems;
this.AutoCompleteMode = AutoCompleteMode.Append;
}
public virtual Object StartDrag(ObjectListView olv, MouseButtons button, OLVListItem item) {
return null;
}
public OLVDataObject(ObjectListView olv, IList modelObjects) {
this.objectListView = olv;
this.modelObjects = modelObjects;
}
/// <summary>
/// Return the edges of the given column.
/// </summary>
/// <param name="lv"></param>
/// <param name="columnIndex"></param>
/// <returns>A Point holding the left and right co-ords of the column.
/// -1 means that the sides could not be retrieved.</returns>
public static Point GetColumnSides(ObjectListView lv, int columnIndex) {
Point sides = new Point(-1, -1);
IntPtr hdr = NativeMethods.GetHeaderControl(lv);
if (hdr == IntPtr.Zero)
return new Point(-1, -1);
RECT r = new RECT();
NativeMethods.SendMessageRECT(hdr, HDM_GETITEMRECT, columnIndex, ref r);
return new Point(r.left, r.right);
}
public override void Draw(ObjectListView olv, Graphics g, Rectangle r) {
if (!r.Contains(olv.PointToClient(Cursor.Position)))
return;
Rectangle bounds = this.RowBounds;
if (bounds.IsEmpty)
return;
using (Region newClip = new Region(r)) {
bounds.Inflate(this.BoundsPadding);
newClip.Exclude(this.GetRoundedRect(bounds, this.CornerRounding));
Region originalClip = g.Clip;
g.Clip = newClip;
g.FillRectangle(this.FillBrush, r);
g.Clip = originalClip;
}
}
public static int InsertGroup(ObjectListView olv, LVGROUP2 group) {
return (int)NativeMethods.SendMessage(olv.Handle, LVM_INSERTGROUP, -1, ref group);
}
/// <summary>
/// Draw this overlay
/// </summary>
/// <param name="olv">The ObjectListView being decorated</param>
/// <param name="g">The Graphics used for drawing</param>
/// <param name="r">The bounds of the rendering</param>
public virtual void Draw(ObjectListView olv, Graphics g, Rectangle r) {
this.DrawText(g, this.CalculateItemBounds(this.ListItem, this.SubItem));
}
public static int SetGroupMetrics(ObjectListView olv, int groupId, LVGROUPMETRICS metrics) {
return (int)NativeMethods.SendMessage(olv.Handle, LVM_SETGROUPMETRICS, groupId, ref metrics);
}
public HeaderControl(ObjectListView olv) {
this.ListView = olv;
this.AssignHandle(NativeMethods.GetHeaderControl(olv));
}
/// <summary>
/// Draw this overlay
/// </summary>
/// <param name="olv">The ObjectListView being decorated</param>
/// <param name="g">The Graphics used for drawing</param>
/// <param name="r">The bounds of the rendering</param>
public virtual void Draw(ObjectListView olv, Graphics g, Rectangle r) {
Rectangle insetRect = r;
insetRect.Inflate(-this.InsetX, -this.InsetY);
// We hard code a transparency of 255 here since transparency is handled by the glass panel
this.DrawText(g, insetRect, this.Text, 255);
}
/// <summary>
/// Insert a native group into the underlying Windows control,
/// *without* using a ListViewGroup
/// </summary>
/// <param name="olv"></param>
/// <remarks>This is used when creating virtual groups</remarks>
public void InsertGroupNewStyle(ObjectListView olv) {
this.ListView = olv;
NativeMethods.InsertGroup(olv, this.AsNativeGroup(true));
this.SetGroupSpacing();
}
/// <summary>
/// Draw this overlay
/// </summary>
/// <param name="olv">The ObjectListView that is being overlaid</param>
/// <param name="g">The Graphics onto the given OLV</param>
/// <param name="r">The content area of the OLV</param>
public virtual void Draw(ObjectListView olv, Graphics g, Rectangle r) {
}
/// <summary>
/// Insert a native group into the underlying control via a ListViewGroup
/// </summary>
/// <param name="olv"></param>
public void InsertGroupOldStyle(ObjectListView olv) {
this.ListView = olv;
if (this.ListViewGroup == null)
this.ListViewGroup = new ListViewGroup();
this.ListViewGroup.Header = this.Header;
this.ListViewGroup.HeaderAlignment = this.HeaderAlignment;
this.ListViewGroup.Name = this.Name;
this.ListViewGroup.Tag = this.Tag;
olv.Groups.Add(this.ListViewGroup);
// Add any extra information
NativeMethods.SetGroupInfo(olv, this.GroupId, this.AsNativeGroup(false));
this.SetGroupSpacing();
}
public TextMatchFilter(ObjectListView olv, string text) {
this.ListView = olv;
this.Text = text;
}
static public void GenerateColumns(ObjectListView olv, Type type) {
IList<OLVColumn> columns = Generator.GenerateColumns(type);
Generator.ReplaceColumns(olv, columns);
}
/// <summary>
/// Attach this form to the given ObjectListView
/// </summary>
public void Bind(ObjectListView olv, IOverlay overlay) {
if (this.objectListView != null)
this.Unbind();
this.objectListView = olv;
this.Overlay = overlay;
this.mdiClient = null;
this.mdiOwner = null;
// NOTE: If you listen to any events here, you *must* stop listening in Unbind()
this.objectListView.Disposed += new EventHandler(objectListView_Disposed);
this.objectListView.LocationChanged += new EventHandler(objectListView_LocationChanged);
this.objectListView.SizeChanged += new EventHandler(objectListView_SizeChanged);
this.objectListView.VisibleChanged += new EventHandler(objectListView_VisibleChanged);
this.objectListView.ParentChanged += new EventHandler(objectListView_ParentChanged);
Control parent = this.objectListView.Parent;
while (parent != null) {
parent.ParentChanged += new EventHandler(objectListView_ParentChanged);
TabControl tabControl = parent as TabControl;
if (tabControl != null) {
tabControl.Selected += new TabControlEventHandler(tabControl_Selected);
}
parent = parent.Parent;
}
this.Owner = this.objectListView.FindForm();
this.myOwner = this.Owner;
if (this.Owner != null) {
this.Owner.LocationChanged += new EventHandler(Owner_LocationChanged);
this.Owner.SizeChanged += new EventHandler(Owner_SizeChanged);
this.Owner.ResizeBegin += new EventHandler(Owner_ResizeBegin);
this.Owner.ResizeEnd += new EventHandler(Owner_ResizeEnd);
if (this.Owner.TopMost) {
// We can't do this.TopMost = true; since that will activate the panel,
// taking focus away from the owner of the listview
NativeMethods.MakeTopMost(this);
}
// We need special code to handle MDI
this.mdiOwner = this.Owner.MdiParent;
if (this.mdiOwner != null) {
this.mdiOwner.LocationChanged += new EventHandler(Owner_LocationChanged);
this.mdiOwner.SizeChanged += new EventHandler(Owner_SizeChanged);
this.mdiOwner.ResizeBegin += new EventHandler(Owner_ResizeBegin);
this.mdiOwner.ResizeEnd += new EventHandler(Owner_ResizeEnd);
// Find the MDIClient control, which houses all MDI children
foreach (Control c in this.mdiOwner.Controls) {
this.mdiClient = c as MdiClient;
if (this.mdiClient != null) {
break;
}
}
if (this.mdiClient != null) {
this.mdiClient.ClientSizeChanged += new EventHandler(myMdiClient_ClientSizeChanged);
}
}
}
this.UpdateTransparency();
}
/// <summary>
/// Create a data object that will be used to as the data object
/// for the drag operation.
/// </summary>
/// <remarks>
/// Subclasses can override this method add new formats to the data object.
/// </remarks>
/// <param name="olv">The ObjectListView that is the source of the drag</param>
/// <returns>A data object for the drag</returns>
protected virtual object CreateDataObject(ObjectListView olv) {
OLVDataObject data = new OLVDataObject(olv);
data.CreateTextFormats();
return data;
}
