public void TestBadLocation ()
{
TreeViewHitTestInfo t = new TreeViewHitTestInfo (null, (TreeViewHitTestLocations) (-1));
Assert.AreEqual (t.Node, null, "bad-loc-1");
Assert.AreEqual ((int) t.Location, -1, "bad-loc-2");
}
private void treeView1_MouseMove(object sender, MouseEventArgs e)
{
pt = e.Location;
treeNode1 = treeView1.GetNodeAt(e.Location);
if (treeNode1 == null || treeNode1.Text == "")
{
treeView1.Cursor = Cursors.Arrow;
return;
}
//改变光标成小手
TreeViewHitTestInfo info = treeView1.HitTest(e.Location);
if (info.Location == TreeViewHitTestLocations.Image || info.Location == TreeViewHitTestLocations.Label)
{
treeView1.Cursor = Win32API.Hand;
}
else
{
treeView1.Cursor = Cursors.Arrow;
}
}
protected override void OnMouseDoubleClick(MouseEventArgs e)
{
System.Windows.Forms.TreeViewHitTestInfo info = this.HitTest(e.X, e.Y);
if (info.Node != null && info.Location.ToString() == "StateImage")
{
return;
//OnCustomCheck(info.Node, System.Windows.Forms.TreeViewAction.ByMouse);
}
base.OnMouseDoubleClick(e);
}
private void OnDragOver(Object sender, DragEventArgs e)
{
Point point = this.PointToClient(new Point(e.X, e.Y));
TreeViewHitTestInfo hit = this.HitTest(point);
if (hit.Node != null)
{
this.SelectedNode = hit.Node;
}
}
private void tree_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
{
// is the click on the checkbox? If not, discard it
System.Windows.Forms.TreeViewHitTestInfo info = this.tree.HitTest(e.X, e.Y);
if (info == null || info.Location != System.Windows.Forms.TreeViewHitTestLocations.StateImage)
{
return;
}
((TreeNodeTri)e.Node).Click();
}
protected override void OnMouseDown(MouseEventArgs e)
{
System.Windows.Forms.TreeViewHitTestInfo info = this.HitTest(e.X, e.Y);
if (info.Node != null && info.Location.ToString() == "StateImage")
{
_isCheckBoxClicked = true;
}
//
//base.OnMouseDown(e);
}
// <summary>
// Called when node is clicked by the mouse. Does nothing unless the image was clicked
// Invokes OnAfterCheck to do the real work
// </summary>
protected override void OnNodeMouseClick(System.Windows.Forms.TreeNodeMouseClickEventArgs e)
{
base.OnNodeMouseClick(e);
// is the click on the checkbox? If not, discard it
System.Windows.Forms.TreeViewHitTestInfo info = HitTest(e.X, e.Y);
if (info == null || info.Location != System.Windows.Forms.TreeViewHitTestLocations.StateImage)
{
return;
}
// toggle the node's checked status. This will then fire OnAfterCheck
System.Windows.Forms.TreeNode tn = e.Node;
tn.Checked = !tn.Checked;
}
public void TestCtor ()
{
TreeViewHitTestInfo t = new TreeViewHitTestInfo (null, TreeViewHitTestLocations.None);
Assert.AreEqual (t.Node, null, "null-1");
Assert.AreEqual (t.Location, TreeViewHitTestLocations.None, "null-2");
t = new TreeViewHitTestInfo (null, TreeViewHitTestLocations.Image);
Assert.AreEqual (t.Node, null, "loc-1");
Assert.AreEqual (t.Location, TreeViewHitTestLocations.Image, "loc-2");
TreeNode tn = new TreeNode ("test");
t = new TreeViewHitTestInfo (tn, TreeViewHitTestLocations.PlusMinus);
Assert.AreEqual (t.Node, tn, "node-1");
Assert.AreEqual (t.Location, TreeViewHitTestLocations.PlusMinus);
}
//TreeViewAction m_action = TreeViewAction.Unknown;
protected void OnNodeMouseClick(object sender, System.Windows.Forms.TreeNodeMouseClickEventArgs e)
{
//base.OnNodeMouseClick(e);
// is the click on the checkbox? If not, discard it
System.Windows.Forms.TreeViewHitTestInfo info = m_tree.HitTest(e.X, e.Y);
if (info == null || info.Location != System.Windows.Forms.TreeViewHitTestLocations.StateImage)
{
return;
}
// toggle the node's checked status. This will then fire OnAfterCheck
System.Windows.Forms.TreeNode tn = e.Node;
//m_action = TreeViewAction.ByMouse;
var bChk = Check(tn);
Check(tn, !bChk);
Tree_AfterCheck(this, new TreeViewEventArgs(e.Node, TreeViewAction.ByMouse));
//m_action = TreeViewAction.Unknown;
}
protected override void OnMouseClick(MouseEventArgs e)
{
if (_isCheckBoxClicked)
{
System.Windows.Forms.TreeViewHitTestInfo info = this.HitTest(e.X, e.Y);
if (info.Node != null)
{
if (info.Node != null && info.Location.ToString() == "StateImage")
{
_isCheckBoxClicked = true;
CheckBoxClicked(info.Node as TriStateTreeNode);
}
else
{
_isCheckBoxClicked = false;
}
}
_isCheckBoxClicked = false;
}
//base.OnMouseClick(e);
}
// <summary>
// Called when node is clicked by the mouse. Does nothing unless the image was clicked
// Invokes OnAfterCheck to do the real work
// </summary>
protected override async void OnNodeMouseClick(System.Windows.Forms.TreeNodeMouseClickEventArgs e)
{
base.OnNodeMouseClick(e);
if (e.Button == MouseButtons.Right)
{
System.Windows.Forms.TreeViewHitTestInfo info = HitTest(e.X, e.Y);
if (info.Location == TreeViewHitTestLocations.Label || info.Location == TreeViewHitTestLocations.RightOfLabel)
{
this.SelectedNode = e.Node;
return;
}
}
// toggle the node's checked status. This will then fire OnAfterCheck
System.Windows.Forms.TreeNode tn = e.Node;
if (tn.Tag.ToString() != "Folder")
{
tn.Checked = !tn.Checked;
await UpdateCounters();
}
else
{
// is the click on the checkbox? If not, discard it
System.Windows.Forms.TreeViewHitTestInfo info = HitTest(e.X, e.Y);
if (info == null || info.Location != System.Windows.Forms.TreeViewHitTestLocations.StateImage)
{
return;
}
else
{
tn.Checked = !tn.Checked;
await UpdateCounters();
}
}
}
private void treeView1_DrawNode(object sender, DrawTreeNodeEventArgs e)
{
//treeView1.BeginUpdate();
#region 1 选中的节点背景=========================================
Rectangle nodeRect = new Rectangle(1,
e.Bounds.Top,
e.Bounds.Width - 3,
e.Bounds.Height - 1);
if (e.Node.IsSelected)
{
//TreeView有焦点的时候 画选中的节点
if (treeView1.Focused || textBox1.Visible)
{
e.Graphics.FillRectangle(brush1, nodeRect);
e.Graphics.DrawRectangle(pen1, nodeRect);
/*测试 画聚焦的边框*/
//ControlPaint.DrawFocusRectangle(e.Graphics, e.Bounds, Color.Black, SystemColors.Highlight);
}
/*TreeView失去焦点的时候 */
else
{
e.Graphics.FillRectangle(brush2, nodeRect);
e.Graphics.DrawRectangle(pen2, nodeRect);
}
}
else if ((e.State & TreeNodeStates.Hot) != 0 && e.Node.Text != "")//|| currentMouseMoveNode == e.Node)
{
e.Graphics.FillRectangle(brush3, nodeRect);
e.Graphics.DrawRectangle(pen3, nodeRect);
}
else
{
e.Graphics.FillRectangle(new SolidBrush(treeView1.BackColor), e.Bounds);
}
#endregion
#region 2 +-号绘制=========================================
Rectangle plusRect = new Rectangle(e.Node.Bounds.Left - 32, nodeRect.Top + 7, 9, 9); // +-号的大小 是9 * 9
if (e.Node.IsExpanded && e.Node.Nodes.Count > 0)
{
//treeView1.Refresh();
for (int i = 0; i < treeView1.Nodes.Count; i++)
{
e.Graphics.DrawImage(minusPictureBox1.Image, plusRect);
}
}
else if (e.Node.IsExpanded == false && e.Node.Nodes.Count > 0)
{
//treeView1.Refresh();
for (int i = 0; i < treeView1.Nodes.Count; i++)
{
e.Graphics.DrawImage(plusPictureBox1.Image, plusRect);
}
}
TreeViewHitTestInfo info = treeView1.HitTest(pt);
if (treeNode1 != null && info.Location == TreeViewHitTestLocations.PlusMinus && treeNode1 == e.Node)
{
if (treeNode1.IsExpanded && treeNode1.Nodes.Count > 0)
{
e.Graphics.DrawImage(minusPictureBox2.Image, plusRect);
}
else if (treeNode1.IsExpanded == false && treeNode1.Nodes.Count > 0)
{
e.Graphics.DrawImage(plusPictureBox2.Image, plusRect);
}
}
/*测试用 画出+-号出现的矩形*/
//if (e.Node.Nodes.Count > 0)
// e.Graphics.DrawRectangle(new Pen(Color.Red), plusRect);
#endregion
#region 3 画节点文本=========================================
Rectangle nodeTextRect = new Rectangle(
e.Node.Bounds.Left,
e.Node.Bounds.Top + 2,
e.Node.Bounds.Width + 2,
e.Node.Bounds.Height
);
nodeTextRect.Width += 4;
nodeTextRect.Height -= 4;
e.Graphics.DrawString(e.Node.Text,
e.Node.TreeView.Font,
new SolidBrush(treeView1.ForeColor),
nodeTextRect);
////画子节点上文件的个数 (111)
if (e.Node.Text != "" &&
Directory.Exists(rootpath + "\\" + e.Node.FullPath))
{
string[] filelist = Directory.GetFiles(rootpath + "\\" + e.Node.FullPath, "*.htm");
nodeTextRect.Width += 4;
nodeTextRect.Height -= 4;
//画子节点个数 (111)
if (e.Node.Text != "" && filelist.Length > 0)
{
e.Graphics.DrawString(string.Format("({0})", filelist.Length),
new Font("Arial", 8),
Brushes.Gray,
nodeTextRect.Right - 4,
nodeTextRect.Top + 2);
}
}
Rectangle r = e.Node.Bounds;
r.Height -= 2;
///*测试用，画文字出现的矩形*/
//if (e.Node.Text != "")
// e.Graphics.DrawRectangle(new Pen(Color.Blue), r);
#endregion
#region 4 画IImageList 中的图标===================================================================
int currt_X = e.Node.Bounds.X;
if (treeView1.ImageList != null && treeView1.ImageList.Images.Count > 0)
{
//图标大小16*16
Rectangle imagebox = new Rectangle(
e.Node.Bounds.X - 3 - 16,
e.Node.Bounds.Y + 3,
16, //IMAGELIST IMAGE WIDTH
16); //HEIGHT
int index = e.Node.ImageIndex;
string imagekey = e.Node.ImageKey;
if (imagekey != "" && treeView1.ImageList.Images.ContainsKey(imagekey))
{
e.Graphics.DrawImage(treeView1.ImageList.Images[imagekey], imagebox);
}
else
{
if (e.Node.ImageIndex < 0)
{
index = 0;
}
else if (index > treeView1.ImageList.Images.Count - 1)
{
index = 0;
}
e.Graphics.DrawImage(treeView1.ImageList.Images[index], imagebox);
}
currt_X -= 19;
/*测试 画IMAGELIST的矩形*/
//if (e.Node.ImageIndex > 0)
// e.Graphics.DrawRectangle(new Pen(Color.Black, 1), imagebox);
}
#endregion
#region 测试 画所有的边框
//nodeRect = new Rectangle(1,
// e.Bounds.Top + 1,
// e.Bounds.Width - 3,
// e.Bounds.Height - 2);
//e.Graphics.DrawRectangle(new Pen(Color.Gray), nodeRect);
#endregion
//treeView1.EndUpdate();
}
