protected override void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y)
{
if (base.Bounds.Contains(x, y))
{
hti.HitTestLocation = HitTestLocation.Text;
}
}
protected override void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y)
{
IConvertible aspect = base.Aspect as IConvertible;
if (aspect != null)
{
int num = aspect.ToInt32(NumberFormatInfo.InvariantInfo);
Point location = base.Bounds.Location;
foreach (int num2 in this.keysInOrder)
{
if ((num & num2) == num2)
{
Image image = this.GetImage(this.imageMap[num2]);
if (image != null)
{
Rectangle rectangle = new Rectangle(location, image.Size);
if (rectangle.Contains(x, y))
{
hti.UserData = num2;
break;
}
location.X += image.Width + base.Spacing;
}
}
}
}
}
/// <summary>
/// Do the hit test
/// </summary>
/// <param name="g"></param>
/// <param name="hti"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected override void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y)
{
Branch br = this.Branch;
Rectangle r = this.ApplyCellPadding(this.Bounds);
if (br.CanExpand)
{
r.Offset((br.Level - 1) * PIXELS_PER_LEVEL, 0);
r.Width = PIXELS_PER_LEVEL;
if (r.Contains(x, y))
{
hti.HitTestLocation = HitTestLocation.ExpandButton;
return;
}
}
r = this.Bounds;
int indent = br.Level * PIXELS_PER_LEVEL;
r.X += indent;
r.Width -= indent;
// Ignore events in the indent zone
if (x < r.Left)
{
hti.HitTestLocation = HitTestLocation.Nothing;
}
else
{
this.StandardHitTest(g, hti, r, x, y);
}
}
protected override void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y)
{
if (this.CalculateCheckBoxBounds(g, base.Bounds).Contains(x, y))
{
hti.HitTestLocation = HitTestLocation.CheckBox;
}
}
protected override void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y)
{
BrightIdeasSoftware.TreeListView.Branch branch = this.Branch;
Rectangle bounds = base.Bounds;
if (branch.CanExpand)
{
bounds.Offset((branch.Level - 1) * PIXELS_PER_LEVEL, 0);
bounds.Width = PIXELS_PER_LEVEL;
if (bounds.Contains(x, y))
{
hti.HitTestLocation = HitTestLocation.ExpandButton;
return;
}
}
bounds = base.Bounds;
int num = branch.Level * PIXELS_PER_LEVEL;
bounds.X += num;
bounds.Width -= num;
if (x < bounds.Left)
{
hti.HitTestLocation = HitTestLocation.Nothing;
}
else
{
base.StandardHitTest(g, hti, bounds, x, y);
}
}
protected virtual void CalculateDropTarget(OlvDropEventArgs args, Point pt)
{
BrightIdeasSoftware.DropTargetLocation none = BrightIdeasSoftware.DropTargetLocation.None;
int index = -1;
int num2 = 0;
if (this.CanDropOnBackground)
{
none = BrightIdeasSoftware.DropTargetLocation.Background;
}
OlvListViewHitTestInfo info = this.ListView.OlvHitTest(pt.X, pt.Y);
if ((info.Item != null) && this.CanDropOnItem)
{
none = BrightIdeasSoftware.DropTargetLocation.Item;
index = info.Item.Index;
if ((info.SubItem != null) && this.CanDropOnSubItem)
{
num2 = info.Item.SubItems.IndexOf(info.SubItem);
}
}
if (this.CanDropBetween && (this.ListView.GetItemCount() > 0))
{
if (none == BrightIdeasSoftware.DropTargetLocation.Item)
{
if ((pt.Y - 3) <= info.Item.Bounds.Top)
{
none = BrightIdeasSoftware.DropTargetLocation.AboveItem;
}
if ((pt.Y + 3) >= info.Item.Bounds.Bottom)
{
none = BrightIdeasSoftware.DropTargetLocation.BelowItem;
}
}
else
{
info = this.ListView.OlvHitTest(pt.X, pt.Y + 3);
if (info.Item != null)
{
index = info.Item.Index;
none = BrightIdeasSoftware.DropTargetLocation.AboveItem;
}
else
{
info = this.ListView.OlvHitTest(pt.X, pt.Y - 3);
if (info.Item != null)
{
index = info.Item.Index;
none = BrightIdeasSoftware.DropTargetLocation.BelowItem;
}
}
}
}
args.DropTargetLocation = none;
args.DropTargetIndex = index;
args.DropTargetSubItemIndex = num2;
}
protected override bool ProcessLButtonDown(OlvListViewHitTestInfo hti)
{
if (hti.HitTestLocation == HitTestLocation.ExpandButton)
{
this.PossibleFinishCellEditing();
this.ToggleExpansion(hti.RowObject);
return(true);
}
return(base.ProcessLButtonDown(hti));
}
private void objList_RowNumberDblClick(BrightIdeasSoftware.OlvListViewHitTestInfo hti)
{
KWListDetailMD obj = (KWListDetailMD)hti.RowObject;
frmKeyWordListMD frmKw = new frmKeyWordListMD(BOIDEnum.KeyWordList);
frmKw.MdiParent = this.MdiParent;
FormExchangeParams param = new FormExchangeParams();
param.Mode = NanCrm.FormMode.Ok;
param.ReturnProc = KWLMDRetProc;
param.Data = (KWListDetailMD)hti.RowObject;
frmKw.SetFormExchangeParams(param);
//frmKw.SetBOTable(((KWListDetailMD)hti.RowObject).GetOrignalMD());
frmKw.Show();
}
protected void StandardHitTest(Graphics g, OlvListViewHitTestInfo hti, Rectangle bounds, int x, int y)
{
Rectangle rectangle = bounds;
int num = this.CalculateCheckBoxWidth(g);
Rectangle rectangle2 = rectangle;
rectangle2.Width = num;
if (rectangle2.Contains(x, y))
{
hti.HitTestLocation = HitTestLocation.CheckBox;
}
else
{
rectangle.X += num;
rectangle.Width -= num;
num = this.CalculateImageWidth(g, this.GetImageSelector());
rectangle2 = rectangle;
rectangle2.Width = num;
if (rectangle2.Contains(x, y))
{
if ((this.Column.Index > 0) && this.Column.CheckBoxes)
{
hti.HitTestLocation = HitTestLocation.CheckBox;
}
else
{
hti.HitTestLocation = HitTestLocation.Image;
}
}
else
{
rectangle.X += num;
rectangle.Width -= num;
num = this.CalculateTextWidth(g, this.GetText());
rectangle2 = rectangle;
rectangle2.Width = num;
if (rectangle2.Contains(x, y))
{
hti.HitTestLocation = HitTestLocation.Text;
}
else
{
hti.HitTestLocation = HitTestLocation.InCell;
}
}
}
}
public override void HitTest(OlvListViewHitTestInfo hti, int x, int y)
{
this.ClearState();
this.ListView = hti.ListView;
this.ListItem = hti.Item;
this.SubItem = hti.SubItem;
this.Column = hti.Column;
this.RowObject = hti.RowObject;
this.IsItemSelected = this.ListItem.Selected;
if (this.SubItem == null)
{
this.Bounds = this.ListItem.Bounds;
}
else
{
this.Bounds = this.ListItem.GetSubItemBounds(this.Column.Index);
}
this.HandleHitTest(this.ListView.CreateGraphics(), hti, x, y);
}
/// <summary>
/// Do the actual work of hit testing. Subclasses should override this rather than HitTest()
/// </summary>
/// <param name="g"></param>
/// <param name="hti"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected virtual void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y)
{
Rectangle r = this.CalculateAlignedRectangle(g, ApplyCellPadding(this.Bounds));
this.StandardHitTest(g, hti, r, x, y);
}
/// <summary>
/// Calculate which part of this cell was hit
/// </summary>
/// <param name="hti"></param>
/// <param name="x"></param>
/// <param name="y"></param>
public override void HitTest(OlvListViewHitTestInfo hti, int x, int y)
{
this.ClearState();
this.ListView = hti.ListView;
this.ListItem = hti.Item;
this.SubItem = hti.SubItem;
this.Column = hti.Column;
this.RowObject = hti.RowObject;
this.IsItemSelected = this.ListItem.Selected && this.ListItem.Enabled;
if (this.SubItem == null)
this.Bounds = this.ListItem.Bounds;
else
this.Bounds = this.ListItem.GetSubItemBounds(this.Column.Index);
using (Graphics g = this.ListView.CreateGraphics()) {
this.HandleHitTest(g, hti, x, y);
}
}
/// <summary>
/// Perform normal hit testing relative to the given bounds
/// </summary>
/// <param name="g"></param>
/// <param name="hti"></param>
/// <param name="bounds"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected void StandardHitTest(Graphics g, OlvListViewHitTestInfo hti, Rectangle bounds, int x, int y)
{
Rectangle r = bounds;
// Match tweaking from renderer
if (this.ColumnIsPrimary && !(this is TreeListView.TreeRenderer)) {
r.X += 3;
r.Width -= 1;
}
r = ApplyCellPadding(r);
int width = 0;
// Did they hit a check box on the primary column?
if (this.ColumnIsPrimary && this.ListView.CheckBoxes) {
Rectangle r2 = this.CalculateCheckBoxBounds(g, r);
Rectangle r3 = r2;
r3.Inflate(2, 2); // slightly larger hit area
//g.DrawRectangle(Pens.DarkGreen, r3);
if (r3.Contains(x, y)) {
hti.HitTestLocation = HitTestLocation.CheckBox;
return;
}
width = r3.Width;
}
// Did they hit the image? If they hit the image of a
// non-primary column that has a checkbox, it counts as a
// checkbox hit
r.X += width;
r.Width -= width;
width = this.CalculateImageWidth(g, this.GetImageSelector());
Rectangle rTwo = r;
rTwo.Width = width;
//g.DrawRectangle(Pens.Red, rTwo);
if (rTwo.Contains(x, y)) {
if (this.Column != null && (this.Column.Index > 0 && this.Column.CheckBoxes))
hti.HitTestLocation = HitTestLocation.CheckBox;
else
hti.HitTestLocation = HitTestLocation.Image;
return;
}
// Did they hit the text?
r.X += width;
r.Width -= width;
width = this.CalculateTextWidth(g, this.GetText());
rTwo = r;
rTwo.Width = width;
//g.DrawRectangle(Pens.Blue, rTwo);
if (rTwo.Contains(x, y)) {
hti.HitTestLocation = HitTestLocation.Text;
return;
}
hti.HitTestLocation = HitTestLocation.InCell;
}
/// <summary>
/// Calculate which part of this cell was hit
/// </summary>
/// <param name="hti"></param>
/// <param name="x"></param>
/// <param name="y"></param>
public override void HitTest(OlvListViewHitTestInfo hti, int x, int y)
{
this.ClearState();
this.ListView = hti.ListView;
this.ListItem = hti.Item;
this.SubItem = hti.SubItem;
this.Column = hti.Column;
this.RowObject = hti.RowObject;
this.IsItemSelected = this.ListItem.Selected;
if (this.SubItem == null)
this.Bounds = this.ListItem.Bounds;
else
this.Bounds = this.ListView.CalculateCellBounds(this.ListItem, this.Column.Index);
this.HandleHitTest(this.ListView.CreateGraphics(), hti, x, y);
}
/// <summary>
/// Do the actual work of hit testing. Subclasses should override this rather than HitTest()
/// </summary>
/// <param name="g"></param>
/// <param name="hti"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected override void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y)
{
IConvertible convertable = this.Aspect as IConvertible;
if (convertable == null)
return;
Int32 v2 = convertable.ToInt32(NumberFormatInfo.InvariantInfo);
Point pt = this.Bounds.Location;
foreach (Int32 key in this.keysInOrder) {
if ((v2 & key) == key) {
Image image = this.GetImage(this.imageMap[key]);
if (image != null) {
Rectangle imageRect = new Rectangle(pt, image.Size);
if (imageRect.Contains(x, y)) {
hti.UserData = key;
return;
}
pt.X += (image.Width + this.Spacing);
}
}
}
}
/// <summary>
/// Handle the HitTest request
/// </summary>
/// <param name="g"></param>
/// <param name="hti"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected override void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y)
{
Rectangle r = this.CalculateCheckBoxBounds(g, this.Bounds);
if (r.Contains(x, y))
hti.HitTestLocation = HitTestLocation.CheckBox;
}
protected override bool ProcessLButtonDoubleClick(OlvListViewHitTestInfo hti)
{
if (hti.HitTestLocation == HitTestLocation.CheckBox)
{
return true;
}
if (hti.Column == null || !hti.Column.IsRowNumberColumn || hti.Item == null || hti.Item.Index < 0)
{
return true;
}
if (RowNumberDblClick != null)
{
RowNumberDblClick(hti);
}
return true;
}
protected override void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y)
{
Rectangle r = CalculateAlignedRectangle(g, Bounds);
// Did they hit a check box?
int width = CalculateCheckBoxWidth(g);
Rectangle r2 = r;
r2.Width = width;
if (r2.Contains(x, y))
{
hti.HitTestLocation = HitTestLocation.CheckBox;
return;
}
// Did they hit the image? If they hit the image of a
// non-primary column that has a checkbox, it counts as a
// checkbox hit
r.X += width;
r.Width -= width;
width = CalculateImageWidth(g, GetImageSelector());
r2 = r;
r2.Width = width;
Image img = GetImageSelector() as Image;
// fix for vertical hitting (w/o the entire vertical column surrounding the image)
if (null != img)
{
r2.Y += (r.Height - img.Height)/2;
r2.Height = img.Height;
}
// end fix
if (r2.Contains(x, y))
{
if (Column.Index > 0 && Column.CheckBoxes)
hti.HitTestLocation = HitTestLocation.CheckBox;
else
hti.HitTestLocation = HitTestLocation.Image;
return;
}
// Did they hit the text?
r.X += width;
r.Width -= width;
width = CalculateTextWidth(g, GetText());
r2 = r;
r2.Width = width;
if (r2.Contains(x, y))
{
hti.HitTestLocation = HitTestLocation.Text;
return;
}
hti.HitTestLocation = HitTestLocation.InCell;
}
public OLVContextMenuClickArgs(OlvListViewHitTestInfo hitInfo)
{
HitInfo = hitInfo;
}
public virtual void HitTest(OlvListViewHitTestInfo hti, int x, int y)
{
}
/// <summary>
/// Perform normal hit testing relative to the given bounds
/// </summary>
/// <param name="g"></param>
/// <param name="hti"></param>
/// <param name="bounds"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected void StandardHitTest(Graphics g, OlvListViewHitTestInfo hti, Rectangle bounds, int x, int y)
{
Rectangle r = bounds;
r = ApplyCellPadding(r);
// Did they hit a check box?
Rectangle r2 = this.CalculateCheckBoxBounds(g, r);
Rectangle r3 = r2;
r3.Inflate(2, 2); // slightly larger hit area
if (r3.Contains(x, y)) {
hti.HitTestLocation = HitTestLocation.CheckBox;
return;
}
int width = r2.Width;
// Did they hit the image? If they hit the image of a
// non-primary column that has a checkbox, it counts as a
// checkbox hit
r.X += width;
r.Width -= width;
width = this.CalculateImageWidth(g, this.GetImageSelector());
r2 = r;
r2.Width = width;
if (r2.Contains(x, y)) {
if (this.Column != null && (this.Column.Index > 0 && this.Column.CheckBoxes))
hti.HitTestLocation = HitTestLocation.CheckBox;
else
hti.HitTestLocation = HitTestLocation.Image;
return;
}
// Did they hit the text?
r.X += width;
r.Width -= width;
width = this.CalculateTextWidth(g, this.GetText());
r2 = r;
r2.Width = width;
if (r2.Contains(x, y)) {
hti.HitTestLocation = HitTestLocation.Text;
return;
}
hti.HitTestLocation = HitTestLocation.InCell;
}
/// <summary>
/// Handle a left mouse down at the given hit test location
/// </summary>
/// <remarks>Subclasses can override this to do something unique</remarks>
/// <param name="hti"></param>
/// <returns>True if the message has been handled</returns>
protected virtual bool ProcessRButtonDown(OlvListViewHitTestInfo hti) {
m_lastHitInfo = hti;
if (hti.Item == null)
return false;
// Ignore clicks on checkboxes
return (hti.HitTestLocation == HitTestLocation.CheckBox);
}
/// <summary>
/// Perform normal hit testing relative to the given aligned content bounds
/// </summary>
/// <param name="g"></param>
/// <param name="hti"></param>
/// <param name="bounds"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected virtual void StandardHitTest(Graphics g, OlvListViewHitTestInfo hti, Rectangle alignedContentRectangle, int x, int y)
{
Rectangle r = alignedContentRectangle;
// Match tweaking from renderer
if (this.ColumnIsPrimary && this.CellHorizontalAlignment == HorizontalAlignment.Left && !(this is TreeListView.TreeRenderer)) {
r.X += 3;
r.Width -= 1;
}
int width = 0;
// Did they hit a check box on the primary column?
if (this.ColumnIsPrimary && this.ListView.CheckBoxes) {
Size checkBoxSize = this.CalculateCheckBoxSize(g);
int checkBoxTop = this.AlignVertically(r, checkBoxSize.Height);
Rectangle r3 = new Rectangle(r.X, checkBoxTop, checkBoxSize.Width, checkBoxSize.Height);
width = r3.Width + 6;
// g.DrawRectangle(Pens.DarkGreen, r3);
if (r3.Contains(x, y)) {
hti.HitTestLocation = HitTestLocation.CheckBox;
return;
}
}
// Did they hit the image? If they hit the image of a
// non-primary column that has a checkbox, it counts as a
// checkbox hit
r.X += width;
r.Width -= width;
width = this.CalculateImageWidth(g, this.GetImageSelector());
Rectangle rTwo = r;
rTwo.Width = width;
// g.DrawRectangle(Pens.Red, rTwo);
if (rTwo.Contains(x, y)) {
if (this.Column != null && (this.Column.Index > 0 && this.Column.CheckBoxes))
hti.HitTestLocation = HitTestLocation.CheckBox;
else
hti.HitTestLocation = HitTestLocation.Image;
return;
}
// Did they hit the text?
r.X += width;
r.Width -= width;
width = this.CalculateTextWidth(g, this.GetText(), r.Width);
rTwo = r;
rTwo.Width = width;
// g.DrawRectangle(Pens.Blue, rTwo);
if (rTwo.Contains(x, y)) {
hti.HitTestLocation = HitTestLocation.Text;
return;
}
hti.HitTestLocation = HitTestLocation.InCell;
}
/// <summary>
/// Perform a hit test when the control is owner drawn. This hands off responsibility
/// to the renderer.
/// </summary>
/// <param name="hti"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected virtual void CalculateOwnerDrawnHitTest(OlvListViewHitTestInfo hti, int x, int y)
{
// If the click wasn't on an item, give up
if (hti.Item == null)
return;
// If the list is showing column, but they clicked outside the columns, also give up
if (this.View == View.Details && hti.Column == null)
return;
// Which renderer was responsible for drawing that point
IRenderer renderer = null;
if (this.View == View.Details) {
renderer = hti.Column.Renderer ?? this.DefaultRenderer;
} else {
renderer = this.ItemRenderer;
}
// We can't decide who was responsible. Give up
if (renderer == null)
return;
// Ask the responsible renderer what is at that point
renderer.HitTest(hti, x, y);
}
/// <summary>
/// What is under the given point?
/// </summary>
/// <param name="hti"></param>
/// <param name="x">x co-ordinate</param>
/// <param name="y">y co-ordinate</param>
/// <remarks>This method should only alter HitTestLocation and/or UserData.</remarks>
public virtual void HitTest(OlvListViewHitTestInfo hti, int x, int y)
{
}
/// <summary>
/// Handle a left mouse down at the given hit test location
/// </summary>
/// <remarks>Subclasses can override this to do something unique</remarks>
/// <param name="hti"></param>
/// <returns>True if the message has been handled</returns>
protected virtual bool ProcessLButtonDown(OlvListViewHitTestInfo hti)
{
if (hti.Item == null)
return false;
// If they didn't click checkbox, we can just return
if (this.View != View.Details || hti.HitTestLocation != HitTestLocation.CheckBox)
return false;
// Did they click a sub item checkbox?
if (hti.Column.Index > 0) {
if (hti.Column.IsEditable)
this.ToggleSubItemCheckBox(hti.RowObject, hti.Column);
return true;
}
// They must have clicked the primary checkbox
this.ToggleCheckObject(hti.RowObject);
// If they change the checkbox of a selecte row, all the rows in the selection
// should be given the same state
if (hti.Item.Selected) {
CheckState? state = this.GetCheckState(hti.RowObject);
if (state.HasValue) {
foreach (Object x in this.SelectedObjects)
this.SetObjectCheckedness(x, state.Value);
}
}
return true;
}
/// <summary>
/// What part of the control is under the given point?
/// </summary>
/// <param name="g"></param>
/// <param name="hti"></param>
/// <param name="bounds"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected override void StandardHitTest(Graphics g, OlvListViewHitTestInfo hti, Rectangle bounds, int x, int y)
{
Rectangle r = ApplyCellPadding(bounds);
if (r.Contains(x, y))
hti.HitTestLocation = HitTestLocation.Button;
}
/// <summary>
/// Handle a left mouse down at the given hit test location
/// </summary>
/// <remarks>Subclasses can override this to do something unique</remarks>
/// <param name="hti"></param>
/// <returns>True if the message has been handled</returns>
protected virtual bool ProcessRButtonDown(OlvListViewHitTestInfo hti)
{
if (hti.Item == null)
return false;
// Ignore clicks on checkboxes
return (this.View == View.Details && hti.HitTestLocation == HitTestLocation.CheckBox);
}
/// <summary>
/// Perform a hit test using the Windows control's SUBITEMHITTEST message.
/// This provides information about group hits that the standard ListView.HitTest() does not.
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns></returns>
protected OlvListViewHitTestInfo LowLevelHitTest(int x, int y) {
// If it's not even in the control, don't bother with anything else
if (!this.ClientRectangle.Contains(x, y))
return new OlvListViewHitTestInfo(null, null, 0, null);
//if (Control.ModifierKeys == Keys.Control)
// System.Diagnostics.Debugger.Break();
// Call the native hit test method, which is a little confusing.
NativeMethods.LVHITTESTINFO lParam = new NativeMethods.LVHITTESTINFO();
lParam.pt_x = x;
lParam.pt_y = y;
int index = NativeMethods.HitTest(this, ref lParam);
// Setup the various values we need to make our hit test structure
bool isGroupHit = (lParam.flags & (int)HitTestLocationEx.LVHT_EX_GROUP) != 0;
OLVListItem hitItem = isGroupHit || index == -1 ? null : this.GetItem(index);
OLVListSubItem subItem = (this.View == View.Details && hitItem != null) ? hitItem.GetSubItem(lParam.iSubItem) : null;
// Figure out which group is involved in the hit test. This is a little complicated:
// If the list is virtual:
// - the returned value is list view item index
// - iGroup is the *index* of the hit group.
// If the list is not virtual:
// - iGroup is always -1.
// - if the point is over a group, the returned value is the *id* of the hit group.
// - if the point is not over a group, the returned value is list view item index.
OLVGroup group = null;
if (this.ShowGroups && this.OLVGroups != null) {
if (this.VirtualMode) {
group = lParam.iGroup >= 0 && lParam.iGroup < this.OLVGroups.Count ? this.OLVGroups[lParam.iGroup] : null;
} else {
if (isGroupHit) {
foreach (OLVGroup olvGroup in this.OLVGroups) {
if (olvGroup.GroupId == index) {
group = olvGroup;
break;
}
}
}
}
}
OlvListViewHitTestInfo olvListViewHitTest = new OlvListViewHitTestInfo(hitItem, subItem, lParam.flags, group);
// System.Diagnostics.Debug.WriteLine(String.Format("HitTest({0}, {1})=>{2}", x, y, olvListViewHitTest));
return olvListViewHitTest;
}
protected virtual void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y)
{
Rectangle bounds = this.CalculateAlignedRectangle(g, this.Bounds);
this.StandardHitTest(g, hti, bounds, x, y);
}
protected override void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y)
{
if (Bounds.Contains(x, y))
hti.HitTestLocation = HitTestLocation.Text;
}
/// <summary>
/// When the mouse is at the given point, what should the target of the drop be?
/// </summary>
/// <remarks>This method should update the DropTarget* members of the given arg block</remarks>
/// <param name="pt">The mouse point, in client co-ordinates</param>
protected virtual void CalculateDropTarget(OlvDropEventArgs args, Point pt)
{
const int SMALL_VALUE = 3;
DropTargetLocation location = DropTargetLocation.None;
int targetIndex = -1;
int targetSubIndex = 0;
if (this.CanDropOnBackground)
{
location = DropTargetLocation.Background;
}
// Which item is the mouse over?
// If it is not over any item, it's over the background.
//ListViewHitTestInfo info = this.ListView.HitTest(pt.X, pt.Y);
OlvListViewHitTestInfo info = this.ListView.OlvHitTest(pt.X, pt.Y);
if (info.Item != null && this.CanDropOnItem)
{
location = DropTargetLocation.Item;
targetIndex = info.Item.Index;
if (info.SubItem != null && this.CanDropOnSubItem)
{
targetSubIndex = info.Item.SubItems.IndexOf(info.SubItem);
}
}
// Check to see if the mouse is "between" rows.
// ("between" is somewhat loosely defined)
if (this.CanDropBetween && this.ListView.GetItemCount() > 0)
{
// If the mouse is over an item, check to see if it is near the top or bottom
if (location == DropTargetLocation.Item)
{
if (pt.Y - SMALL_VALUE <= info.Item.Bounds.Top)
{
location = DropTargetLocation.AboveItem;
}
if (pt.Y + SMALL_VALUE >= info.Item.Bounds.Bottom)
{
location = DropTargetLocation.BelowItem;
}
}
else
{
// Is there an item a little below the mouse?
// If so, we say the drop point is above that row
info = this.ListView.OlvHitTest(pt.X, pt.Y + SMALL_VALUE);
if (info.Item != null)
{
targetIndex = info.Item.Index;
location = DropTargetLocation.AboveItem;
}
else
{
// Is there an item a little above the mouse?
info = this.ListView.OlvHitTest(pt.X, pt.Y - SMALL_VALUE);
if (info.Item != null)
{
targetIndex = info.Item.Index;
location = DropTargetLocation.BelowItem;
}
}
}
}
args.DropTargetLocation = location;
args.DropTargetIndex = targetIndex;
args.DropTargetSubItemIndex = targetSubIndex;
}
/// <summary>
/// What is under the given point? This takes the various parts of a cell into accout, including
/// any custom parts that a custom renderer might use
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns>An information block about what is under the point</returns>
public virtual OlvListViewHitTestInfo OlvHitTest(int x, int y)
{
ListViewHitTestInfo hitTestInfo = this.HitTest(x, y);
OlvListViewHitTestInfo hti = new OlvListViewHitTestInfo(hitTestInfo);
// There is a bug/"feature" of the ListView concerning hit testing.
// If FullRowSelect is false and the point is over cell 0 but not on
// the text or icon, HitTest will not register a hit. We could turn
// FullRowSelect on, do the HitTest, and then turn it off again, but
// toggling FullRowSelect in that way messes up the tooltip in the
// underlying control. So we have to find another way.
//
// It's too hard to try to write the hit test from scratch. Grouping (for
// example) makes it just too complicated. So, we have to use HitTest
// but try to get around its limits.
//
// First step is to determine if the point was within column 0.
// If it was, then we only have to determine if there is an actual row
// under the point. If there is, then we know that the point is over cell 0.
// So we try a Battleship-style approach: is there a subcell to the right
// of cell 0? This will return a false negative if column 0 is the rightmost column,
// so we also check for a subcell to the left. But if only column 0 is visible,
// then that will fail too, so we check for something at the very left of the
// control.
//
// This will still fail under pathological conditions. If column 0 fills
// the whole listview and no part of the text column 0 is visible
// (because it is horizontally scrolled offscreen), then the hit test will fail.
// Are we in the buggy context? Details view, not full row select, and
// failing to find anything
if (hitTestInfo.Item == null && !this.FullRowSelect && this.View == View.Details) {
// Is the point within the column 0? If it is, maybe it should have been a hit.
// Let's test slightly to the right and then to left of column 0. Hopefully one
// of those will hit a subitem
Point sides = NativeMethods.GetScrolledColumnSides(this, 0);
if (x >= sides.X && x <= sides.Y) {
// We look for:
// - any subitem to the right of cell 0?
// - any subitem to the left of cell 0?
// - cell 0 at the left edge of the screen
hitTestInfo = this.HitTest(sides.Y + 4, y);
if (hitTestInfo.Item == null)
hitTestInfo = this.HitTest(sides.X - 4, y);
if (hitTestInfo.Item == null)
hitTestInfo = this.HitTest(4, y);
if (hitTestInfo.Item != null) {
// We hit something! So, the original point must have been in cell 0
hti.Item = (OLVListItem)hitTestInfo.Item;
hti.SubItem = hti.Item.GetSubItem(0);
hti.Location = ListViewHitTestLocations.None;
hti.HitTestLocation = HitTestLocation.InCell;
}
}
}
if (this.OwnerDraw)
this.CalculateOwnerDrawnHitTest(hti, x, y);
else
this.CalculateStandardHitTest(hti, x, y);
return hti;
}
/// <summary>
/// Do the hit test
/// </summary>
/// <param name="g"></param>
/// <param name="hti"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected override void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y) {
Branch br = this.Branch;
Rectangle r = this.Bounds;
if (br.CanExpand) {
r.Offset((br.Level - 1) * PIXELS_PER_LEVEL, 0);
r.Width = PIXELS_PER_LEVEL;
if (r.Contains(x, y)) {
hti.HitTestLocation = HitTestLocation.ExpandButton;
return;
}
}
r = this.Bounds;
int indent = br.Level * PIXELS_PER_LEVEL;
r.X += indent;
r.Width -= indent;
// Ignore events in the indent zone
if (x < r.Left) {
hti.HitTestLocation = HitTestLocation.Nothing;
} else {
this.StandardHitTest(g, hti, r, x, y);
}
}
/// <summary>
/// Perform a hit test when the control is not owner drawn
/// </summary>
/// <param name="hti"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected virtual void CalculateStandardHitTest(OlvListViewHitTestInfo hti, int x, int y)
{
// Standard hit test works fine for the primary column
if (this.View != View.Details || hti.ColumnIndex == 0 ||
hti.SubItem == null || hti.Column == null)
return;
Rectangle cellBounds = hti.SubItem.Bounds;
bool hasImage = (this.GetActualImageIndex(hti.SubItem.ImageSelector) != -1);
// Unless we say otherwise, it was an general incell hit
hti.HitTestLocation = HitTestLocation.InCell;
// Check if the point is over where an image should be.
// If there is a checkbox or image there, tag it and exit.
Rectangle r = cellBounds;
r.Width = this.SmallImageSize.Width;
if (r.Contains(x, y)) {
if (hti.Column.CheckBoxes) {
hti.HitTestLocation = HitTestLocation.CheckBox;
return;
}
if (hasImage) {
hti.HitTestLocation = HitTestLocation.Image;
return;
}
}
// Figure out where the text actually is and if the point is in it
// The standard HitTest assumes that any point inside a subitem is
// a hit on Text -- which is clearly not true.
Rectangle textBounds = cellBounds;
textBounds.X += 4;
if (hasImage)
textBounds.X += this.SmallImageSize.Width;
Size proposedSize = new Size(textBounds.Width, textBounds.Height);
Size textSize = TextRenderer.MeasureText(hti.SubItem.Text, this.Font, proposedSize, TextFormatFlags.EndEllipsis | TextFormatFlags.SingleLine | TextFormatFlags.NoPrefix);
textBounds.Width = textSize.Width;
switch (hti.Column.TextAlign) {
case HorizontalAlignment.Center:
textBounds.X += (cellBounds.Right - cellBounds.Left - textSize.Width) / 2;
break;
case HorizontalAlignment.Right:
textBounds.X = cellBounds.Right - textSize.Width;
break;
}
if (textBounds.Contains(x, y)) {
hti.HitTestLocation = HitTestLocation.Text;
}
}
/// <summary>
/// Calculate which part of this cell was hit
/// </summary>
/// <param name="hti"></param>
/// <param name="x"></param>
/// <param name="y"></param>
public override void HitTest(OlvListViewHitTestInfo hti, int x, int y)
{
ClearState();
ListView = hti.ListView;
ListItem = hti.Item;
SubItem = hti.SubItem;
Column = hti.Column;
RowObject = hti.RowObject;
IsItemSelected = ListItem.Selected;
if (SubItem == null)
Bounds = ListItem.Bounds;
else
Bounds = ListItem.GetSubItemBounds(Column.Index);
//this.Bounds = this.ListView.CalculateCellBounds(this.ListItem, this.Column.Index);
using (Graphics g = ListView.CreateGraphics())
{
HandleHitTest(g, hti, x, y);
}
}
/// <summary>
/// Handle a right mouse double click at the given hit test location
/// </summary>
/// <remarks>Subclasses can override this to do something unique</remarks>
/// <param name="hti"></param>
/// <returns>True if the message has been handled</returns>
protected virtual bool ProcessRButtonDoubleClick(OlvListViewHitTestInfo hti)
{
// If the user double clicked on a checkbox, ignore it
return (hti.HitTestLocation == HitTestLocation.CheckBox);
}
/// <summary>
/// Do the actual work of hit testing. Subclasses should override this rather than HitTest()
/// </summary>
/// <param name="g"></param>
/// <param name="hti"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected virtual void HandleHitTest(Graphics g, OlvListViewHitTestInfo hti, int x, int y)
{
Rectangle r = CalculateAlignedRectangle(g, Bounds);
StandardHitTest(g, hti, r, x, y);
}
/// <summary>
/// The mouse has moved to the given pt. See if the hot item needs to be updated
/// </summary>
/// <param name="hti"></param>
/// <remarks>This is the main entry point for hot item handling</remarks>
protected virtual void UpdateHotItem(OlvListViewHitTestInfo hti)
{
if (!this.UseHotItem && !this.UseHyperlinks)
return;
int newHotRow = hti.RowIndex;
int newHotColumn = hti.ColumnIndex;
HitTestLocation newHotCellHitLocation = hti.HitTestLocation;
// In non-details view, we treat any hit on a row as if it were a hit
// on column 0 -- which (effectively) it is!
if (newHotRow >= 0 && this.View != View.Details)
newHotColumn = 0;
if (this.HotRowIndex == newHotRow &&
this.HotColumnIndex == newHotColumn &&
this.HotCellHitLocation == newHotCellHitLocation)
return;
// Trigger the hotitem changed event
HotItemChangedEventArgs args = new HotItemChangedEventArgs();
args.HotCellHitLocation = newHotCellHitLocation;
args.HotColumnIndex = newHotColumn;
args.HotRowIndex = newHotRow;
args.OldHotCellHitLocation = this.HotCellHitLocation;
args.OldHotColumnIndex = this.HotColumnIndex;
args.OldHotRowIndex = this.HotRowIndex;
this.OnHotItemChanged(args);
// Update the state of the control
this.HotRowIndex = newHotRow;
this.HotColumnIndex = newHotColumn;
this.HotCellHitLocation = newHotCellHitLocation;
// If the event handler handled it complete, don't do anything else
if (args.Handled)
return;
this.BeginUpdate();
try {
this.Invalidate();
if (args.OldHotRowIndex != -1)
this.UnapplyHotItem(args.OldHotRowIndex);
if (this.HotRowIndex != -1) {
// Virtual lists apply hot item style when fetching their rows
if (this.VirtualMode)
this.RedrawItems(this.HotRowIndex, this.HotRowIndex, true);
else
this.UpdateHotRow(this.HotRowIndex, this.HotColumnIndex, this.HotCellHitLocation, hti.Item);
}
if (this.UseHotItem && this.HotItemStyle != null && this.HotItemStyle.Overlay != null) {
this.RefreshOverlays();
}
} finally {
this.EndUpdate();
}
}
/// <summary>
/// Perform normal hit testing relative to the given bounds
/// </summary>
/// <param name="g"></param>
/// <param name="hti"></param>
/// <param name="bounds"></param>
/// <param name="x"></param>
/// <param name="y"></param>
protected void StandardHitTest(Graphics g, OlvListViewHitTestInfo hti, Rectangle bounds, int x, int y)
{
Rectangle r = bounds;
// Did they hit a check box?
int width = CalculateCheckBoxWidth(g);
Rectangle r2 = r;
r2.Width = width;
if (r2.Contains(x, y))
{
hti.HitTestLocation = HitTestLocation.CheckBox;
return;
}
// Did they hit the image? If they hit the image of a
// non-primary column that has a checkbox, it counts as a
// checkbox hit
r.X += width;
r.Width -= width;
width = CalculateImageWidth(g, GetImageSelector());
r2 = r;
r2.Width = width;
if (r2.Contains(x, y))
{
if (Column.Index > 0 && Column.CheckBoxes)
hti.HitTestLocation = HitTestLocation.CheckBox;
else
hti.HitTestLocation = HitTestLocation.Image;
return;
}
// Did they hit the text?
r.X += width;
r.Width -= width;
width = CalculateTextWidth(g, GetText());
r2 = r;
r2.Width = width;
if (r2.Contains(x, y))
{
hti.HitTestLocation = HitTestLocation.Text;
return;
}
hti.HitTestLocation = HitTestLocation.InCell;
}
