private void SetVMaxNum(Control control) { if (!m_lstVCache.ContainsKey(control)) { return; } var into = ControlHelper.GetVScrollBarInfo(control.Handle); var intoH = ControlHelper.GetHScrollBarInfo(control.Handle); UCVScrollbar barV = m_lstVCache[control]; if (control is ScrollableControl) { barV.Maximum = (control as ScrollableControl).VerticalScroll.Maximum; barV.Value = (control as ScrollableControl).VerticalScroll.Value; } else if (control is TreeView) { barV.Maximum = GetTreeNodeMaxY(control as TreeView); barV.Value = (control as TreeView).AutoScrollOffset.Y; } else if (control is TextBox) { TextBox txt = (TextBox)control; int intTxtMaxHeight = 0; int intTextHeight = 0; using (var g = txt.CreateGraphics()) { intTxtMaxHeight = (int)g.MeasureString(txt.Text, txt.Font).Height; intTextHeight = (int)g.MeasureString(txt.Text.Substring(0, txt.SelectionStart), txt.Font).Height; } barV.Maximum = intTxtMaxHeight; barV.Value = (control as TextBox).AutoScrollOffset.Y; } }
void barV_Scroll(object sender, EventArgs e) { UCVScrollbar bar = (UCVScrollbar)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) { ControlHelper.SetVScrollValue(c.Handle, bar.Value / ((c as TreeView).ItemHeight)); } else if (c is TextBox) { ControlHelper.SetVScrollValue(c.Handle, bar.Value / ((c as TextBox).PreferredHeight)); } else if (c is RichTextBox) { ControlHelper.SetVScrollValue(c.Handle, bar.Value); } else if (c is ListBox) { ControlHelper.SetVScrollValue(c.Handle, bar.Value / ((c as ListBox).ItemHeight)); } else if (c is ListView) { ControlHelper.SetVScrollValue(c.Handle, bar.Value); } else if (c is DataGridView) { var dgv = (DataGridView)c; if (bar.Value > 0) { dgv.FirstDisplayedScrollingRowIndex = bar.Value - 1; } } } }
void barV_Scroll(object sender, EventArgs e) { UCVScrollbar bar = (UCVScrollbar)sender; if (m_lstVCache.ContainsValue(bar)) { Control c = m_lstVCache.FirstOrDefault(p => p.Value == bar).Key; if (c is ScrollableControl) { (c as ScrollableControl).AutoScrollPosition = new Point((c as ScrollableControl).AutoScrollPosition.X, bar.Value); } else if (c is TreeView) { TreeView tv = (c as TreeView); SetTreeViewVScrollLocation(tv, tv.Nodes, bar.Value); } else if (c is TextBox) { TextBox txt = (c as TextBox); SetTextBoxVScrollLocation(txt, bar.Value); } } }
void control_SizeChanged(object sender, EventArgs e) { if (ControlHelper.IsDesignMode()) { return; } else { var control = sender as Control; bool blnHasVScrollbar = control.IsHandleCreated && (ControlHelper.GetWindowLong(control.Handle, STYLE) & VSCROLL) != 0; bool blnHasHScrollbar = control.IsHandleCreated && (ControlHelper.GetWindowLong(control.Handle, STYLE) & HSCROLL) != 0; if (blnHasVScrollbar) { if (!m_lstVCache.ContainsKey(control)) { if (control.Parent != null) { UCVScrollbar barV = new UCVScrollbar(); barV.Width = SystemInformation.VerticalScrollBarWidth; barV.Scroll += barV_Scroll; m_lstVCache[control] = barV; if (blnHasHScrollbar) { barV.Height = control.Height - barV.Width - 2; } else { barV.Height = control.Height - 2; } SetVMaxNum(control); barV.Location = new System.Drawing.Point(control.Right - barV.Width - 1, control.Top + 1); control.Parent.Controls.Add(barV); int intControlIndex = control.Parent.Controls.GetChildIndex(control); control.Parent.Controls.SetChildIndex(barV, intControlIndex); } } else { SetVMaxNum(control); } } else { if (m_lstVCache.ContainsKey(control) && m_lstVCache[control].Parent != null) { m_lstVCache[control].Parent.Controls.Remove(m_lstVCache[control]); m_lstVCache.Remove(control); } } if (blnHasHScrollbar) { if (!m_lstHCache.ContainsKey(control)) { if (control.Parent != null) { UCHScrollbar barH = new UCHScrollbar(); barH.Height = SystemInformation.HorizontalScrollBarHeight; barH.Scroll += barH_Scroll; m_lstHCache[control] = barH; if (blnHasHScrollbar) { barH.Width = control.Width - barH.Height - 2; } else { barH.Width = control.Width - 2; } SetHMaxNum(control); barH.Location = new System.Drawing.Point(control.Left + 1, control.Bottom - barH.Height - 1); control.Parent.Controls.Add(barH); int intControlIndex = control.Parent.Controls.GetChildIndex(control); control.Parent.Controls.SetChildIndex(barH, intControlIndex); } } else { SetHMaxNum(control); } } else { if (m_lstHCache.ContainsKey(control)) { if (m_lstHCache[control].Visible) { m_lstHCache[control].Parent.Controls.Remove(m_lstHCache[control]); } } } } ResetScrollLocation(sender); }
private void SetVMaxNum(Control control) { if (!m_lstVCache.ContainsKey(control)) { return; } var intoV = ControlHelper.GetVScrollBarInfo(control.Handle); UCVScrollbar 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 && (ControlHelper.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 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 (ControlHelper.IsDesignMode()) { return; } else { var control = sender as Control; bool blnHasVScrollbar = control.IsHandleCreated && (ControlHelper.GetWindowLong(control.Handle, STYLE) & VSCROLL) != 0; bool blnHasHScrollbar = control.IsHandleCreated && (ControlHelper.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) { UCVScrollbar barV = new UCVScrollbar(); 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) { UCHScrollbar barH = new UCHScrollbar(); 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); }