DotNet 4.8.1 build of DotNetBar
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257
PROMS/DotNetBar Source Code/Controls/ScrollBarReplacement.cs
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257
PROMS/DotNetBar Source Code/Controls/ScrollBarReplacement.cs
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#if FRAMEWORK20
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using System;
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using System.Text;
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using DevComponents.DotNetBar.ScrollBar;
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using System.Drawing;
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using System.Windows.Forms;
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using DevComponents.DotNetBar.Rendering;
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namespace DevComponents.DotNetBar.Controls
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{
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internal class ScrollBarReplacement:IDisposable
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{
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#region Private Variables
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private ScrollBarCore m_ScrollBarCore = null;
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private System.Windows.Forms.ScrollBar m_ParentScrollBar = null;
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private IScrollBarExtender m_ParentScrollBarWndProc = null;
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private bool m_IsVScrollBar = false;
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#endregion
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#region Constructor
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public ScrollBarReplacement(System.Windows.Forms.ScrollBar sb)
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{
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m_ParentScrollBar = sb;
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m_ParentScrollBarWndProc = (IScrollBarExtender)m_ParentScrollBar;
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m_IsVScrollBar = m_ParentScrollBar is VScrollBar;
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m_ScrollBarCore = new ScrollBarCore(m_ParentScrollBar, false);
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m_ScrollBarCore.ValueChanged += new EventHandler(ScrollBarCore_ValueChanged);
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if (m_ParentScrollBar is HScrollBar)
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m_ScrollBarCore.Orientation = eOrientation.Horizontal;
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else
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m_ScrollBarCore.Orientation = eOrientation.Vertical;
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m_ScrollBarCore.Minimum = m_ParentScrollBar.Minimum;
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m_ScrollBarCore.Maximum = m_ParentScrollBar.Maximum;
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m_ScrollBarCore.Value = m_ParentScrollBar.Value;
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m_ScrollBarCore.Enabled = m_ParentScrollBar.Enabled;
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m_ParentScrollBar.EnabledChanged += new EventHandler(ParentScrollBar_EnabledChanged);
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}
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#endregion
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#region Internal Implementation
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private void ParentScrollBar_EnabledChanged(object sender, EventArgs e)
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{
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m_ScrollBarCore.Enabled = m_ParentScrollBar.Enabled;
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}
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internal void OnHandleCreated()
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{
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UpdateScrollValues();
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}
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internal void UpdateScrollValues()
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{
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Rectangle r = new Rectangle(0, 0, m_ParentScrollBar.Width, m_ParentScrollBar.Height);
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if (m_ScrollBarCore.Minimum != m_ParentScrollBar.Minimum)
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m_ScrollBarCore.Minimum = m_ParentScrollBar.Minimum;
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if (m_ScrollBarCore.Maximum != m_ParentScrollBar.Maximum)
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m_ScrollBarCore.Maximum = m_ParentScrollBar.Maximum;
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if (m_ScrollBarCore.SmallChange != m_ParentScrollBar.SmallChange)
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m_ScrollBarCore.SmallChange = m_ParentScrollBar.SmallChange;
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if (m_ScrollBarCore.LargeChange != m_ParentScrollBar.LargeChange)
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m_ScrollBarCore.LargeChange = m_ParentScrollBar.LargeChange;
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if (m_ScrollBarCore.Value != m_ParentScrollBar.Value)
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m_ScrollBarCore.Value = m_ParentScrollBar.Value;
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if (r != m_ScrollBarCore.DisplayRectangle)
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m_ScrollBarCore.DisplayRectangle = r;
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}
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private bool IsVScroll
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{
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get
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{
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return m_IsVScrollBar;
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}
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}
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internal void OnMouseEnter(EventArgs e)
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{
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if (m_ParentScrollBar.Capture)
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m_ParentScrollBar.Capture = false;
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}
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internal void OnMouseLeave(EventArgs e)
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{
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m_ScrollBarCore.MouseLeave();
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}
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internal void OnMouseMove(System.Windows.Forms.MouseEventArgs e)
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{
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m_ScrollBarCore.MouseMove(e);
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}
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internal void NotifyInvalidate(Rectangle invalidatedArea)
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{
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//UpdateScrollValues();
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m_ScrollBarCore.DisposeCashedView();
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}
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internal void OnMouseDown(MouseEventArgs e)
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{
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m_ScrollBarCore.MouseDown(e);
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}
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internal void OnMouseUp(MouseEventArgs e)
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{
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m_ScrollBarCore.MouseUp(e);
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}
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private void ScrollBarCore_ValueChanged(object sender, EventArgs e)
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{
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SetValue(m_ScrollBarCore.Value);
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}
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private void SetValue(int v)
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{
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//Console.WriteLine(v + " " + m_ParentScrollBar.LargeChange +" "+m_ParentScrollBar.Maximum);
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if (m_ParentScrollBar.Value == v && m_ParentScrollBar.Value != m_ScrollBarCore.GetMaximumValue()) return;
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ScrollEventType t = ScrollEventType.SmallIncrement;
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if (m_ScrollBarCore.MouseOverPart == ScrollBarCore.eScrollPart.ThumbDecrease)
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t = ScrollEventType.SmallDecrement;
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else if (m_ScrollBarCore.MouseOverPart == ScrollBarCore.eScrollPart.Track)
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t = ScrollEventType.ThumbTrack;
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else if (m_ScrollBarCore.MouseOverPart == ScrollBarCore.eScrollPart.Control)
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{
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if (v > m_ParentScrollBar.Value)
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t = ScrollEventType.LargeIncrement;
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else
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t = ScrollEventType.LargeDecrement;
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}
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if (t == ScrollEventType.SmallIncrement && m_ParentScrollBar.Value == v && m_ParentScrollBar.Value == m_ScrollBarCore.GetMaximumValue())
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{
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t = ScrollEventType.Last;
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}
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m_ParentScrollBarWndProc.SetValue(v, t);
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//if (t == ScrollEventType.ThumbTrack && m_ParentScrollBar.Parent is DataGridView)
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// m_ParentScrollBar.Parent.Refresh();
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}
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#endregion
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#region IDisposable Members
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public void Dispose()
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{
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m_ScrollBarCore.DisposeCashedView();
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}
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#endregion
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#region Rendering
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internal void OnPaint(System.Windows.Forms.PaintEventArgs e)
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{
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Graphics g = e.Graphics;
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UpdateScrollValues();
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//using (BufferedBitmap bmp = new BufferedBitmap(g, new Rectangle(0, 0, m_ParentScrollBar.Width, m_ParentScrollBar.Height)))
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//{
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m_ScrollBarCore.Paint(GetItemPaintArgs(g));
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//bmp.Render(g);
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//}
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}
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private ItemPaintArgs GetItemPaintArgs(Graphics g)
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{
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ItemPaintArgs pa = new ItemPaintArgs(m_ParentScrollBar as IOwner, m_ParentScrollBar, g, GetColorScheme());
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pa.Renderer = this.GetRenderer();
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pa.DesignerSelection = false;
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pa.GlassEnabled = false;
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return pa;
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}
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private ColorScheme m_ColorScheme = null;
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/// <summary>
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/// Returns the color scheme used by control. Color scheme for Office2007 style will be retrived from the current renderer instead of
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/// local color scheme referenced by ColorScheme property.
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/// </summary>
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/// <returns>An instance of ColorScheme object.</returns>
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protected virtual ColorScheme GetColorScheme()
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{
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BaseRenderer r = GetRenderer();
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if (r is Office2007Renderer)
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return ((Office2007Renderer)r).ColorTable.LegacyColors;
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if (m_ColorScheme == null)
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m_ColorScheme = new ColorScheme(eDotNetBarStyle.Office2007);
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return m_ColorScheme;
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}
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private Rendering.BaseRenderer m_DefaultRenderer = null;
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private Rendering.BaseRenderer m_Renderer = null;
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private eRenderMode m_RenderMode = eRenderMode.Global;
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/// <summary>
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/// Returns the renderer control will be rendered with.
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/// </summary>
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/// <returns>The current renderer.</returns>
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public virtual Rendering.BaseRenderer GetRenderer()
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{
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if (m_RenderMode == eRenderMode.Global && Rendering.GlobalManager.Renderer != null)
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return Rendering.GlobalManager.Renderer;
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else if (m_RenderMode == eRenderMode.Custom && m_Renderer != null)
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return m_Renderer;
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if (m_DefaultRenderer == null)
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m_DefaultRenderer = new Rendering.Office2007Renderer();
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return m_DefaultRenderer;
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}
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/// <summary>
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/// Gets or sets the redering mode used by control. Default value is eRenderMode.Global which means that static GlobalManager.Renderer is used. If set to Custom then Renderer property must
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/// also be set to the custom renderer that will be used.
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/// </summary>
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public eRenderMode RenderMode
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{
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get { return m_RenderMode; }
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set
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{
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if (m_RenderMode != value)
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{
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m_RenderMode = value;
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m_ParentScrollBar.Invalidate(true);
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}
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}
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}
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/// <summary>
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/// Gets or sets the custom renderer used by the items on this control. RenderMode property must also be set to eRenderMode.Custom in order renderer
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/// specified here to be used.
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/// </summary>
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public DevComponents.DotNetBar.Rendering.BaseRenderer Renderer
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{
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get
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{
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return m_Renderer;
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}
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set { m_Renderer = value; }
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}
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internal ScrollBarCore ScrollBarCore
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{
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get { return m_ScrollBarCore; }
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}
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public bool AppStyleScrollBar
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{
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get { return m_ScrollBarCore.IsAppScrollBarStyle; }
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set { m_ScrollBarCore.IsAppScrollBarStyle = value; }
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}
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#endregion
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#region IScrollBarExtender
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internal interface IScrollBarExtender
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{
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void SetValue(int newValue, ScrollEventType type);
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}
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#endregion
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}
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}
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#endif
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