private void Control_MouseWheel(object sender, MouseEventArgs e)
{
Control c = (Control)sender;
if (m_lstVCache.ContainsKey(c))
{
if (e.Delta > 5)
{
ScrollBarHelper.ScrollUp(c.Handle);
}
else if (e.Delta < -5)
{
ScrollBarHelper.ScrollDown(c.Handle);
}
SetVMaxNum(c);
}
else if (m_lstHCache.ContainsKey(c))
{
if (e.Delta > 5)
{
ScrollBarHelper.ScrollLeft(c.Handle);
}
else if (e.Delta < -5)
{
ScrollBarHelper.ScrollRight(c.Handle);
}
SetHMaxNum(c);
}
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
e.Graphics.SetGDIHigh();
if (this.Maximum > 0)
{
//draw thumb
int nTrackWidth = (this.Width - btnWidth * 2);
//float fThumbWidth = ((float)LargeChange / (float)Maximum) * nTrackWidth;
float fThumbWidth = nTrackWidth - this.Maximum;
int nThumbWidth = (int)fThumbWidth;
if (nThumbWidth > nTrackWidth)
{
nThumbWidth = nTrackWidth;
fThumbWidth = nTrackWidth;
}
if (nThumbWidth < m_intThumbMinWidth)
{
nThumbWidth = m_intThumbMinWidth;
fThumbWidth = m_intThumbMinWidth;
}
int nLeft = moThumbLeft;
nLeft += btnWidth;
if (nLeft + nThumbWidth > this.Width - btnWidth)
{
nLeft = this.Width - btnWidth - nThumbWidth;
}
e.Graphics.FillPath(new SolidBrush(thumbColor), new Rectangle(nLeft, 1, nThumbWidth, this.Height - 3).CreateRoundedRectanglePath(this.ConerRadius));
}
ScrollBarHelper.PaintTriangle(e.Graphics, new SolidBrush(thumbColor), new Point(btnWidth - Math.Min(5, this.Height / 2), this.Height / 2), Math.Min(5, this.Height / 2), EGraphDirection.Leftward);
ScrollBarHelper.PaintTriangle(e.Graphics, new SolidBrush(thumbColor), new Point(this.Width - (btnWidth - Math.Min(5, this.Height / 2)), this.Height / 2), Math.Min(5, this.Height / 2), EGraphDirection.Rightward);
}
/// <summary>
/// 引发 <see cref="E:System.Windows.Forms.Control.Paint" /> 事件。
/// </summary>
/// <param name="e">包含事件数据的 <see cref="T:System.Windows.Forms.PaintEventArgs" />。</param>
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
e.Graphics.SetGDIHigh();
if (Maximum > 0)
{
//draw thumb
int nTrackHeight = (this.Height - btnHeight * 2);
//float fThumbHeight = ((float)LargeChange / (float)Maximum) * nTrackHeight;
float fThumbHeight = nTrackHeight - Maximum;
int nThumbHeight = (int)fThumbHeight;
if (nThumbHeight > nTrackHeight)
{
nThumbHeight = nTrackHeight;
fThumbHeight = nTrackHeight;
}
if (nThumbHeight < m_intThumbMinHeight)
{
nThumbHeight = m_intThumbMinHeight;
fThumbHeight = m_intThumbMinHeight;
}
int nTop = moThumbTop;
nTop += btnHeight;
if (nTop + nThumbHeight > this.Height - btnHeight)
{
nTop = this.Height - btnHeight - nThumbHeight;
}
e.Graphics.FillPath(new SolidBrush(thumbColor), new Rectangle(1, nTop, this.Width - 3, nThumbHeight).CreateRoundedRectanglePath(this.ConerRadius));
}
ScrollBarHelper.PaintTriangle(e.Graphics, new SolidBrush(thumbColor), new Point(this.Width / 2, btnHeight - Math.Min(5, this.Width / 2)), Math.Min(5, this.Width / 2), EGraphDirection.Upward);
ScrollBarHelper.PaintTriangle(e.Graphics, new SolidBrush(thumbColor), new Point(this.Width / 2, this.Height - (btnHeight - Math.Min(5, this.Width / 2))), Math.Min(5, this.Width / 2), EGraphDirection.Downward);
}
protected override void OnCreateControl()
{
ScrollBarHelper _ScrollBarHelper = new ScrollBarHelper(
Handle,
Properties.Resources.vista_ScrollHorzShaft,
Properties.Resources.vista_ScrollHorzArrow,
Properties.Resources.vista_ScrollHorzThumb,
Properties.Resources.vista_ScrollVertShaft,
Properties.Resources.vista_ScrollVertArrow,
Properties.Resources.vista_ScrollVertThumb,
Properties.Resources.vista_ScrollHorzArrow
);
base.OnCreateControl();
}
void barV_Scroll(object sender, EventArgs e)
{
ScrollbarVEx bar = (ScrollbarVEx)sender;
if (m_lstVCache.ContainsValue(bar))
{
Control c = m_lstVCache.FirstOrDefault(p => p.Value == bar).Key;
//ControlHelper.SetVScrollValue(c.Handle, bar.Value);
if (c is ScrollableControl)
{
(c as ScrollableControl).AutoScrollPosition = new Point((c as ScrollableControl).AutoScrollPosition.X, bar.Value);
}
else if (c is TreeView)
{
ScrollBarHelper.SetVScrollValue(c.Handle, bar.Value / ((c as TreeView).ItemHeight));
}
else if (c is TextBox)
{
ScrollBarHelper.SetVScrollValue(c.Handle, bar.Value / ((c as TextBox).PreferredHeight));
}
else if (c is RichTextBox)
{
ScrollBarHelper.SetVScrollValue(c.Handle, bar.Value);
}
else if (c is ListBox)
{
ScrollBarHelper.SetVScrollValue(c.Handle, bar.Value / ((c as ListBox).ItemHeight));
}
else if (c is ComboBox)
{
ScrollBarHelper.SetVScrollValue(c.Handle, bar.Value / ((c as ComboBox).ItemHeight));
}
else if (c is ListView)
{
ScrollBarHelper.SetVScrollValue(c.Handle, bar.Value);
}
else if (c is DataGridView)
{
var dgv = (DataGridView)c;
if (bar.Value > 0)
{
dgv.FirstDisplayedScrollingRowIndex = bar.Value - 1;
}
}
}
}
void barH_Scroll(object sender, EventArgs e)
{
ScrollbarHEx bar = (ScrollbarHEx)sender;
if (m_lstHCache.ContainsValue(bar))
{
Control c = m_lstHCache.FirstOrDefault(p => p.Value == bar).Key;
if (c is ScrollableControl)
{
(c as ScrollableControl).AutoScrollPosition = new Point(bar.Value, (c as ScrollableControl).AutoScrollPosition.Y);
}
else if (c is TreeView)
{
ScrollBarHelper.SetHScrollValue(c.Handle, bar.Value);
//TreeView tv = (c as TreeView);
//SetTreeViewVScrollLocation(tv, tv.Nodes, bar.Value);
}
else if (c is TextBox)
{
ScrollBarHelper.SetHScrollValue(c.Handle, bar.Value);
//TextBox txt = (c as TextBox);
//SetTextBoxVScrollLocation(txt, bar.Value);
}
else if (c is RichTextBox)
{
ScrollBarHelper.SetHScrollValue(c.Handle, bar.Value);
}
else if (c is ListBox)
{
ScrollBarHelper.SetHScrollValue(c.Handle, bar.Value);
}
else if (c is ComboBox)
{
ScrollBarHelper.SetHScrollValue(c.Handle, bar.Value);
}
else if (c is ListView)
{
ScrollBarHelper.SetHScrollValue(c.Handle, bar.Value);
}
else if (c is DataGridView)
{
var dgv = (DataGridView)c;
dgv.HorizontalScrollingOffset = bar.Value;
}
}
}
private void propertyListView_Resize(object sender, EventArgs e)
{
try
{
propertyListView.SuspendDrawing();
propertyListView.SuspendLayout();
var width = propertyListView.Width - propertyListView.Columns[0].Width - 4;
var scrollbars = ScrollBarHelper.GetVisibleScrollbars(propertyListView);
if (scrollbars == ScrollBars.Vertical || scrollbars == ScrollBars.Both)
{
width -= 17;
}
propertyListView.Columns[1].Width = width;
}
finally
{
propertyListView.ResumeLayout();
propertyListView.ResumeDrawing();
}
}
private void ResetColumnWidth()
{
if (objectsListView.Width > 0)
{
ScrollBars scrollBars = ScrollBarHelper.GetVisibleScrollBars(objectsListView);
if (scrollBars.ToString() == "Vertical" || scrollBars.ToString() == "Both")
{
if (objectsListView.Columns[0].Width != objectsListView.Width - 21)
{
objectsListView.Columns[0].Width = objectsListView.Width - 21;
}
}
else
{
if (objectsListView.Columns[0].Width != objectsListView.Width - 4)
{
objectsListView.Columns[0].Width = objectsListView.Width - 4;
}
}
}
}
private void FieldNameListView_ColumnWidthChanged(object sender, ColumnWidthChangedEventArgs e)
{
if (fieldNameListView.Width > 0)
{
ScrollBars scrollBars = ScrollBarHelper.GetVisibleScrollBars(fieldNameListView);
if (scrollBars.ToString() == "Vertical" || scrollBars.ToString() == "Both")
{
if (fieldNameListView.Columns[0].Width != fieldNameListView.Width - 21)
{
fieldNameListView.Columns[0].Width = fieldNameListView.Width - 21;
}
}
else
{
if (fieldNameListView.Columns[0].Width != fieldNameListView.Width - 4)
{
fieldNameListView.Columns[0].Width = fieldNameListView.Width - 4;
}
}
}
}
/// <summary>
/// Resets the v scroll location.
/// </summary>
/// <param name="sender">The sender.</param>
private void ResetScrollLocation(object sender)
{
Control control = (Control)sender;
bool blnHasVScrollbar = control.IsHandleCreated && (ScrollBarHelper.GetWindowLong(control.Handle, STYLE) & VSCROLL) != 0;
bool blnHasHScrollbar = control.IsHandleCreated && (ScrollBarHelper.GetWindowLong(control.Handle, STYLE) & HSCROLL) != 0;
if (control is TextBox)
{
var txt = (TextBox)control;
if (txt.ScrollBars == ScrollBars.Both)
{
blnHasVScrollbar = true;
blnHasHScrollbar = true;
}
else if (txt.ScrollBars == ScrollBars.Vertical)
{
blnHasVScrollbar = true;
blnHasHScrollbar = false;
}
else if (txt.ScrollBars == ScrollBars.Horizontal)
{
blnHasVScrollbar = false;
blnHasHScrollbar = true;
}
else
{
blnHasVScrollbar = false;
blnHasHScrollbar = false;
}
}
else if (control is DataGridView)
{
var dgv = (DataGridView)control;
if (dgv.ScrollBars == ScrollBars.Both || dgv.ScrollBars == ScrollBars.Vertical)
{
int _height = dgv.RowTemplate.Height * dgv.Rows.Count;
if (dgv.ColumnHeadersVisible)
{
_height += dgv.ColumnHeadersHeight;
}
blnHasVScrollbar = _height > dgv.Height;
}
if (dgv.ScrollBars == ScrollBars.Both || dgv.ScrollBars == ScrollBars.Horizontal)
{
int _width = 0;
foreach (DataGridViewColumn com in dgv.Columns)
{
_width += com.Width;
}
if (dgv.RowHeadersVisible)
{
_width += dgv.RowHeadersWidth;
}
blnHasHScrollbar = _width > dgv.Width;
}
}
else if (control is ListView)
{
if (!((ListView)control).Scrollable)
{
blnHasVScrollbar = false;
blnHasHScrollbar = false;
}
}
if (control.Visible)
{
if (m_lstVCache.ContainsKey(control))
{
m_lstVCache[control].Location = new System.Drawing.Point(control.Right - m_lstVCache[control].Width, control.Top);
if (blnHasHScrollbar)
{
m_lstVCache[control].Height = control.Height - m_lstHCache[control].Height;
}
else
{
m_lstVCache[control].Height = control.Height;
}
SetVMaxNum(control);
}
if (m_lstHCache.ContainsKey(control))
{
m_lstHCache[control].Location = new System.Drawing.Point(control.Left, control.Bottom - m_lstHCache[control].Height);
//if (blnHasVScrollbar)
//{
// m_lstHCache[control].Width = control.Width - m_lstVCache[control].Width;
//}
//else
//{
m_lstHCache[control].Width = control.Width;
//}
SetHMaxNum(control);
}
}
}
private void SetHMaxNum(Control control)
{
if (!m_lstHCache.ContainsKey(control))
{
return;
}
var intoH = ScrollBarHelper.GetHScrollBarInfo(control.Handle);
ScrollbarHEx barH = m_lstHCache[control];
if (control is ScrollableControl)
{
barH.Maximum = intoH.ScrollMax;
barH.Visible = intoH.ScrollMax > 0 && intoH.nMax > 0 && intoH.nPage > 0;
barH.Value = intoH.nPos;
barH.BringToFront();
//barH.Maximum = (control as ScrollableControl).HorizontalScroll.Maximum;
//barH.Value = (control as ScrollableControl).HorizontalScroll.Value;
}
else if (control is TreeView)
{
var tv = control as TreeView;
barH.Maximum = intoH.ScrollMax;
barH.Visible = intoH.ScrollMax > 0 && intoH.nMax > 0 && intoH.nPage > 0;
barH.Value = intoH.nPos;
barH.BringToFront();
//barH.Maximum = GetTreeNodeMaxX(control as TreeView);
//barH.Value = (control as TreeView).AutoScrollOffset.X;
}
else if (control is TextBox)
{
TextBox txt = (TextBox)control;
barH.Maximum = intoH.ScrollMax;
if (txt.ScrollBars == ScrollBars.Both || txt.ScrollBars == ScrollBars.Horizontal)
{
barH.Visible = true;
}
else
{
barH.Visible = false;
}
barH.Value = intoH.nPos;
barH.BringToFront();
}
else if (control is RichTextBox)
{
bool blnHasHScrollbar = control.IsHandleCreated && (ScrollBarHelper.GetWindowLong(control.Handle, STYLE) & HSCROLL) != 0;
barH.Maximum = intoH.ScrollMax;
barH.Visible = blnHasHScrollbar;
barH.Value = intoH.nPos;
barH.BringToFront();
}
else if (control is ListBox)
{
var lb = control as ListBox;
barH.Maximum = intoH.ScrollMax * lb.ItemHeight;
barH.Visible = intoH.ScrollMax > 0 && intoH.nMax > 0 && intoH.nPage > 0;
barH.Value = intoH.nPos * lb.ItemHeight;
barH.BringToFront();
}
else if (control is ComboBox)
{
var lb = control as ComboBox;
barH.Maximum = intoH.ScrollMax * lb.ItemHeight;
barH.Visible = intoH.ScrollMax > 0 && intoH.nMax > 0 && intoH.nPage > 0;
barH.Value = intoH.nPos * lb.ItemHeight;
barH.BringToFront();
}
else if (control is ListView)
{
barH.Maximum = intoH.ScrollMax;
barH.Visible = intoH.ScrollMax > 0 && intoH.nMax > 0 && intoH.nPage > 0;
barH.Value = intoH.nPos;
barH.BringToFront();
}
else if (control is DataGridView)
{
bool blnHasHScrollbar = false;
var dgv = (DataGridView)control;
int _width = 0;
if (dgv.ScrollBars == ScrollBars.Both || dgv.ScrollBars == ScrollBars.Horizontal)
{
foreach (DataGridViewColumn com in dgv.Columns)
{
_width += com.Width;
}
if (dgv.RowHeadersVisible)
{
_width += dgv.RowHeadersWidth;
}
blnHasHScrollbar = _width > dgv.Width;
}
if (blnHasHScrollbar)
{
barH.Maximum = _width - dgv.Width;
}
barH.Visible = blnHasHScrollbar;
barH.Value = dgv.FirstDisplayedScrollingColumnHiddenWidth;
barH.BringToFront();
}
}
private void SetVMaxNum(Control control)
{
if (!m_lstVCache.ContainsKey(control))
{
return;
}
var intoV = ScrollBarHelper.GetVScrollBarInfo(control.Handle);
ScrollbarVEx barV = m_lstVCache[control];
if (control is ScrollableControl)
{
barV.Maximum = intoV.ScrollMax;
barV.Visible = intoV.ScrollMax > 0 && intoV.nMax > 0 && intoV.nPage > 0;
barV.Value = intoV.nPos;
barV.BringToFront();
// barV.Maximum = (control as ScrollableControl).VerticalScroll.Maximum;
// barV.Value = (control as ScrollableControl).VerticalScroll.Value;
}
else if (control is TreeView)
{
var tv = control as TreeView;
barV.Maximum = intoV.ScrollMax * tv.ItemHeight;
barV.Visible = intoV.ScrollMax > 0 && intoV.nMax > 0 && intoV.nPage > 0;
barV.Value = intoV.nPos * tv.ItemHeight;
barV.BringToFront();
//barV.Maximum = GetTreeNodeMaxY(control as TreeView) - control.Height;
//barV.Value = (control as TreeView).AutoScrollOffset.Y;
}
else if (control is TextBox)
{
TextBox txt = (TextBox)control;
barV.Maximum = intoV.ScrollMax * txt.PreferredHeight;
if (txt.ScrollBars == ScrollBars.Both || txt.ScrollBars == ScrollBars.Vertical)
{
barV.Visible = true;
}
else
{
barV.Visible = false;
}
barV.Value = intoV.nPos * txt.PreferredHeight;
barV.BringToFront();
}
else if (control is RichTextBox)
{
bool blnHasVScrollbar = control.IsHandleCreated && (ScrollBarHelper.GetWindowLong(control.Handle, STYLE) & VSCROLL) != 0;
barV.Maximum = intoV.ScrollMax;
barV.Visible = blnHasVScrollbar;
barV.Value = intoV.nPos;
barV.BringToFront();
}
else if (control is ListBox)
{
var lb = control as ListBox;
if (intoV.ScrollMax <= 1)
{
var v = lb.ItemHeight * lb.Items.Count - lb.Height;
if (v > 0)
{
barV.Maximum = v;
}
else
{
barV.Maximum = intoV.ScrollMax * lb.ItemHeight;
}
}
else
{
barV.Maximum = intoV.ScrollMax * lb.ItemHeight;
}
barV.Visible = intoV.ScrollMax > 0 && intoV.nMax > 0 && intoV.nPage > 0;
barV.Value = intoV.nPos * lb.ItemHeight;
barV.BringToFront();
}
else if (control is ComboBox)
{
var lb = control as ComboBox;
if (intoV.ScrollMax <= 1)
{
var v = lb.ItemHeight * lb.Items.Count - lb.Height;
if (v > 0)
{
barV.Maximum = v;
}
else
{
barV.Maximum = intoV.ScrollMax * lb.ItemHeight;
}
}
else
{
barV.Maximum = intoV.ScrollMax * lb.ItemHeight;
}
barV.Visible = intoV.ScrollMax > 0 && intoV.nMax > 0 && intoV.nPage > 0;
barV.Value = intoV.nPos * lb.ItemHeight;
barV.BringToFront();
}
else if (control is ListView)
{
barV.Maximum = intoV.ScrollMax;
barV.Visible = intoV.ScrollMax > 0 && intoV.nMax > 0 && intoV.nPage > 0;
barV.Value = intoV.nPos;
barV.BringToFront();
}
else if (control is DataGridView)
{
bool blnHasVScrollbar = false;
var dgv = (DataGridView)control;
if (dgv.ScrollBars == ScrollBars.Both || dgv.ScrollBars == ScrollBars.Vertical)
{
int _height = dgv.RowTemplate.Height * dgv.Rows.Count;
if (dgv.ColumnHeadersVisible)
{
_height += dgv.ColumnHeadersHeight;
}
blnHasVScrollbar = _height > dgv.Height;
}
barV.Maximum = dgv.Rows.Count;
barV.Visible = blnHasVScrollbar;
barV.Value = dgv.FirstDisplayedScrollingRowIndex;;
barV.BringToFront();
}
}
void control_SizeChanged(object sender, EventArgs e)
{
if (this.DesignMode)
{
return;
}
else
{
var control = sender as Control;
bool blnHasVScrollbar = control.IsHandleCreated && (ScrollBarHelper.GetWindowLong(control.Handle, STYLE) & VSCROLL) != 0;
bool blnHasHScrollbar = control.IsHandleCreated && (ScrollBarHelper.GetWindowLong(control.Handle, STYLE) & HSCROLL) != 0;
if (control is TextBox)
{
var txt = (TextBox)control;
if (txt.ScrollBars == ScrollBars.Both)
{
blnHasVScrollbar = true;
blnHasHScrollbar = true;
}
else if (txt.ScrollBars == ScrollBars.Vertical)
{
blnHasVScrollbar = true;
blnHasHScrollbar = false;
}
else if (txt.ScrollBars == ScrollBars.Horizontal)
{
blnHasVScrollbar = false;
blnHasHScrollbar = true;
}
else
{
blnHasVScrollbar = false;
blnHasHScrollbar = false;
}
}
else if (control is DataGridView)
{
var dgv = (DataGridView)control;
if (dgv.ScrollBars == ScrollBars.Both || dgv.ScrollBars == ScrollBars.Vertical)
{
int _height = dgv.RowTemplate.Height * dgv.Rows.Count;
if (dgv.ColumnHeadersVisible)
{
_height += dgv.ColumnHeadersHeight;
}
blnHasVScrollbar = _height > dgv.Height;
}
if (dgv.ScrollBars == ScrollBars.Both || dgv.ScrollBars == ScrollBars.Horizontal)
{
int _width = 0;
foreach (DataGridViewColumn com in dgv.Columns)
{
_width += com.Width;
}
if (dgv.RowHeadersVisible)
{
_width += dgv.RowHeadersWidth;
}
blnHasHScrollbar = _width > dgv.Width;
}
}
else if (control is ListView)
{
if (!((ListView)control).Scrollable)
{
blnHasVScrollbar = false;
blnHasHScrollbar = false;
}
}
if (blnHasVScrollbar)
{
if (!m_lstVCache.ContainsKey(control))
{
if (control.Parent != null)
{
ScrollbarVEx barV = new ScrollbarVEx();
barV.SmallChange = 5;
barV.Width = SystemInformation.VerticalScrollBarWidth + 1;
barV.Scroll += barV_Scroll;
m_lstVCache[control] = barV;
if (blnHasHScrollbar)
{
barV.Height = control.Height - barV.Width;
}
else
{
barV.Height = control.Height;
}
SetVMaxNum(control);
barV.Location = new System.Drawing.Point(control.Right - barV.Width, control.Top);
control.Parent.Controls.Add(barV);
int intControlIndex = control.Parent.Controls.GetChildIndex(control);
control.Parent.Controls.SetChildIndex(barV, intControlIndex);
}
}
else
{
if (blnHasHScrollbar)
{
m_lstVCache[control].Height = control.Height - m_lstVCache[control].Width;
}
else
{
m_lstVCache[control].Height = control.Height;
}
SetVMaxNum(control);
}
}
else
{
if (m_lstVCache.ContainsKey(control) && m_lstVCache[control].Parent != null)
{
m_lstVCache[control].Visible = false;
}
}
if (blnHasHScrollbar)
{
if (!m_lstHCache.ContainsKey(control))
{
if (control.Parent != null)
{
ScrollbarHEx barH = new ScrollbarHEx();
barH.Height = SystemInformation.HorizontalScrollBarHeight + 1;
barH.SmallChange = 5;
barH.Scroll += barH_Scroll;
m_lstHCache[control] = barH;
if (blnHasHScrollbar)
{
barH.Width = control.Width - barH.Height;
}
else
{
barH.Width = control.Width;
}
SetHMaxNum(control);
barH.Location = new System.Drawing.Point(control.Left, control.Bottom - barH.Height);
control.Parent.Controls.Add(barH);
int intControlIndex = control.Parent.Controls.GetChildIndex(control);
control.Parent.Controls.SetChildIndex(barH, intControlIndex);
}
}
else
{
if (blnHasHScrollbar)
{
m_lstHCache[control].Width = control.Width - m_lstHCache[control].Height;
}
else
{
m_lstHCache[control].Width = control.Width;
}
SetHMaxNum(control);
}
}
else
{
if (m_lstHCache.ContainsKey(control))
{
if (m_lstHCache[control].Visible && m_lstHCache[control].Parent != null)
{
m_lstHCache[control].Visible = false;
}
}
}
}
ResetScrollLocation(sender);
}
