/// <summary>
/// Performs drawing of the item and its children.
/// </summary>
/// <param name="renderInfo">Holds contextual rendering information.</param>
protected override void RenderOverride(GridRenderInfo renderInfo)
{
GridPanel panel = Parent as GridPanel;
if (panel != null)
{
Graphics g = renderInfo.Graphics;
Rectangle bounds = Bounds;
ColumnHeaderRowVisualStyle style = GetEffectiveRowHeaderStyle();
GridPanelVisualStyle pstyle = panel.GetEffectiveStyle();
if (SuperGrid.DoPreRenderColumnHeaderEvent(g,
this, null, RenderParts.Background, bounds) == false)
{
RenderRowBackground(g, style, bounds);
SuperGrid.DoPostRenderColumnHeaderEvent(g,
this, null, RenderParts.Background, bounds);
}
RenderColumnBorder(g, panel, bounds);
if (panel.IsSubPanel == true ||
panel.FrozenColumnCount <= 0)
{
RenderAllColumns(renderInfo, panel, pstyle, bounds);
}
else
{
RenderScrollableColumns(renderInfo, panel);
RenderFrozenColumns(renderInfo, panel, pstyle, bounds);
}
RenderRowHeader(g, panel, style, pstyle);
}
}
/// <summary>
/// Performs drawing of the item and its children
/// </summary>
/// <param name="renderInfo">Holds contextual rendering information.</param>
protected override void RenderOverride(GridRenderInfo renderInfo)
{
GridPanel panel = GridPanel;
if (panel != null)
{
Rectangle bounds = Bounds;
GridPanelVisualStyle pstyle = panel.GetEffectiveStyle();
if (bounds.IntersectsWith(renderInfo.ClipRectangle))
RenderRow(renderInfo, panel, pstyle, bounds);
if (Rows != null && Expanded == true)
RenderSubItems(renderInfo, panel, pstyle, panel.IsSubPanel, IsVFrozen);
RenderDesignerElement(renderInfo, bounds);
}
}
/// <summary> /// Performs drawing of the item and its children. /// </summary> /// <param name="renderInfo">Holds contextual rendering information.</param> protected abstract void RenderOverride(GridRenderInfo renderInfo);
/// <summary>
/// Performs drawing of the item and its children.
/// </summary>
/// <param name="renderInfo">Holds contextual rendering information.</param>
protected override void RenderOverride(GridRenderInfo renderInfo)
{
RenderDesignerElement(renderInfo, Bounds);
}
/// <summary>
/// Performs drawing of the item and its children.
/// </summary>
/// <param name="renderInfo">Holds contextual rendering information.</param>
protected override void RenderOverride(GridRenderInfo renderInfo)
{
GridPanel panel = GridPanel;
if (panel != null)
{
Rectangle bounds = Bounds;
if (bounds.Height > 0)
{
Rectangle r = bounds;
r.Inflate(2, 2);
if (r.IntersectsWith(renderInfo.ClipRectangle))
RenderRow(renderInfo, panel, bounds);
}
}
}
private void PaintControl(GridRenderInfo renderInfo)
{
Rectangle r = ClientRectangle;
r.Intersect(renderInfo.ClipRectangle);
if (r.Width > 0 && r.Height > 0)
_PrimaryGrid.Render(renderInfo);
RenderScrollBoxArea(renderInfo);
}
private void RenderWaterMark(GridRenderInfo renderInfo)
{
Rectangle r = ViewRect;
r.X = r.Right - 30;
r.Width = 30;
if (r.IntersectsWith(renderInfo.ClipRectangle) == true)
{
Graphics g = renderInfo.Graphics;
using (StringFormat sf = new StringFormat())
{
sf.Alignment = StringAlignment.Center;
sf.LineAlignment = StringAlignment.Center;
sf.FormatFlags = StringFormatFlags.NoWrap | StringFormatFlags.DirectionVertical;
using (Font font = new Font("Times New Roman", 9))
{
Rectangle t = r;
t.X++;
t.Y++;
using (SolidBrush brush = new SolidBrush(Color.FromArgb(128, Color.Gray)))
{
g.DrawString("DevComponents SuperGrid Trial",
font, brush, t, sf);
}
using (SolidBrush brush = new SolidBrush(Color.FromArgb(128, Color.Gainsboro)))
{
g.DrawString("DevComponents SuperGrid Trial",
font, brush, r, sf);
}
}
}
}
}
private void RenderEmptyCell(GridRenderInfo renderInfo,
GridColumn column, bool isHFrozen, bool isVFrozen)
{
if (column.Visible == true)
{
Rectangle r = column.BoundsRelative;
r.Y = BoundsRelative.Y;
r.Height = FixedRowHeight;
Rectangle bounds = r;
if (isHFrozen == false)
bounds.X -= HScrollOffset;
if (isVFrozen == false)
{
bounds.Y -= VScrollOffset;
bounds.Intersect(SViewRect);
}
if (bounds.IntersectsWith(renderInfo.ClipRectangle))
{
GridCell cell = GetEmptyRenderCell(column);
cell.IsMouseOver =
bounds.Contains(SuperGrid.PointToClient(Control.MousePosition));
cell.Render(renderInfo);
}
}
}
protected void RenderRowHeader(GridRenderInfo renderInfo,
GridPanel panel, GridContainer item, GridPanelVisualStyle pstyle, Rectangle r)
{
Graphics g = renderInfo.Graphics;
r.Width = panel.RowHeaderWidth;
if (r.IntersectsWith(renderInfo.ClipRectangle))
{
if (r.Height > 100)
r = GetCenterBounds(r);
RenderRowHeader(g, panel, item, pstyle, r, true);
}
}
private void RenderFrozenColumns(
GridRenderInfo renderInfo, GridPanel panel)
{
GridCellCollection cells = _Cells;
GridColumnCollection columns = panel.Columns;
bool isVFrozen = IsVFrozen;
int[] map = columns.DisplayIndexMap;
int n = Math.Min(map.Length, panel.FrozenColumnCount);
for (int i = 0; i < n; i++)
{
int index = map[i];
if (index < cells.Count)
{
RenderCell(renderInfo,
columns[index], cells[index], true, isVFrozen);
}
else
{
RenderEmptyCell(renderInfo,
columns[index], true, isVFrozen);
}
}
}
private bool RenderCell(GridRenderInfo renderInfo,
GridColumn column, GridCell cell, bool isHFrozen, bool isVFrozen)
{
if (column.Visible == true)
{
Rectangle bounds = cell.BoundsRelative;
if (isHFrozen == false)
bounds.X -= HScrollOffset;
if (isVFrozen == false)
bounds.Y -= VScrollOffset;
if (bounds.X > renderInfo.ClipRectangle.Right)
return (false);
cell.Render(renderInfo);
}
return (true);
}
private void RenderScrollableColumns(
GridRenderInfo renderInfo, GridPanel panel)
{
GridCellCollection cells = _Cells;
GridColumnCollection columns = panel.Columns;
bool isVFrozen = IsVFrozen;
int[] map = columns.DisplayIndexMap;
for (int i = panel.FrozenColumnCount; i < map.Length; i++)
{
int index = map[i];
if (index < cells.Count)
{
RenderCell(renderInfo,
columns[index], cells[index], false, isVFrozen);
}
else
{
RenderEmptyCell(renderInfo,
columns[index], false, isVFrozen);
}
}
}
private void RenderAllColumns(
GridRenderInfo renderInfo, GridPanel panel)
{
GridCellCollection cells = _Cells;
GridColumnCollection columns = panel.Columns;
bool isVFrozen = IsVFrozen;
int[] map = columns.DisplayIndexMap;
for (int i = 0; i < map.Length; i++)
{
int index = map[i];
GridColumn column = columns[index];
if (column.Bounds.IntersectsWith(renderInfo.ClipRectangle))
{
if (index < cells.Count)
{
if (RenderCell(renderInfo, column, cells[index], false, isVFrozen) == false)
break;
}
else
{
RenderEmptyCell(renderInfo, column, false, isVFrozen);
}
}
}
}
private void RenderRow(GridRenderInfo renderInfo,
GridPanel panel, GridPanelVisualStyle pstyle, Rectangle r)
{
Graphics g = renderInfo.Graphics;
RenderParts parts = RenderParts.Background;
SuperGrid.DoPreRenderRowEvent(g, this, parts, r);
if (HScrollOffset == 0 ||
panel.Parent != null || panel.FrozenColumnCount <= 0)
{
RenderAllColumns(renderInfo, panel);
}
else
{
RenderScrollableColumns(renderInfo, panel);
RenderFrozenColumns(renderInfo, panel);
}
SuperGrid.DoPostRenderRowEvent(g, this, parts, r);
parts = RenderParts.Border;
if (panel.ShowRowHeaders == true)
parts |= RenderParts.RowHeader;
Rectangle w = WhiteSpaceBounds;
if (w.Width > 0 && w.Height > 0)
parts |= RenderParts.Whitespace;
if (SuperGrid.DoPreRenderRowEvent(g, this, parts, r) == false)
{
if (panel.ShowRowHeaders == true)
RenderRowHeader(renderInfo, panel, this, pstyle, r);
if (w.Width > 0 && w.Height > 0)
RenderRowWhitespace(renderInfo, panel, pstyle, w);
SuperGrid.DoPostRenderRowEvent(g, this, parts, r);
}
if (panel.FocusCuesEnabled == true &&
SuperGrid.ActiveElement == this)
{
RenderFocusRect(g, r);
}
}
private void RenderScrollableColumns(
GridRenderInfo renderInfo, GridPanel panel)
{
Graphics g = renderInfo.Graphics;
GridColumnCollection columns = _Columns;
int[] map = columns.DisplayIndexMap;
for (int i = 0; i < map.Length; i++)
{
int index = map[i];
GridColumn column = columns[index];
if (column.Visible == true && column.IsHFrozen == false)
{
Rectangle r = GetBounds(panel, column);
if (r.IntersectsWith(renderInfo.ClipRectangle) == true)
RenderColumnHeader(g, panel, column, r, true);
}
}
}
private void RenderRowWhitespace(GridRenderInfo renderInfo,
GridPanel panel, GridPanelVisualStyle pstyle, Rectangle r)
{
Graphics g = renderInfo.Graphics;
StyleState state = GetWhiteSpaceState(panel);
RowVisualStyle style = GetEffectiveRowStyle(this, state);
using (Brush br = style.Background.GetBrush(r))
g.FillRectangle(br, r);
if (panel.ShowWhitespaceRowLines == true)
{
switch (panel.GridLines)
{
case GridLines.Both:
case GridLines.Horizontal:
if (pstyle.HorizontalLinePattern != LinePattern.None &&
pstyle.HorizontalLinePattern != LinePattern.NotSet)
{
using (Pen pen = new Pen(pstyle.HorizontalLineColor))
{
pen.DashStyle = (DashStyle) pstyle.HorizontalLinePattern;
g.DrawLine(pen, r.Left, r.Bottom - 1, r.Right - 1, r.Bottom - 1);
g.DrawLine(pen, r.Left, r.Top - 1, r.Right - 1, r.Top - 1);
}
}
break;
}
}
}
private void RenderFrozenColumns(GridRenderInfo renderInfo,
GridPanel panel, GridPanelVisualStyle pstyle, Rectangle bounds)
{
Graphics g = renderInfo.Graphics;
GridColumnCollection columns = _Columns;
GridColumn lastCol = null;
int[] map = columns.DisplayIndexMap;
for (int i = 0; i < map.Length; i++)
{
int index = map[i];
GridColumn column = columns[index];
if (column.Visible == true && column.IsHFrozen == true)
{
Rectangle r = GetBounds(panel, column);
if (r.IntersectsWith(renderInfo.ClipRectangle) == true)
RenderColumnHeader(g, panel, column, r, true);
lastCol = column;
}
}
RenderFrozenColumnMarker(g, panel, pstyle, lastCol, bounds);
}
protected void RenderSubItems(GridRenderInfo renderInfo,
GridPanel panel, GridPanelVisualStyle pstyle, bool isSubPanel, bool isFrozen)
{
Rectangle t = SViewRect;
GridItemsCollection items = Rows;
for (int i = FirstOnScreenRowIndex; i < items.Count; i++)
{
GridElement item = items[i];
if (item.Visible == true)
{
GridPanel ipanel = item as GridPanel;
if (ipanel != null)
{
Graphics g = renderInfo.Graphics;
Rectangle r = ipanel.ContainerBounds;
if (isFrozen == false)
r.Y -= VScrollOffset;
if (isSubPanel == true)
r.X -= HScrollOffset;
if (r.Y > t.Bottom)
break;
if (r.IntersectsWith(renderInfo.ClipRectangle))
{
Rectangle r2 = r;
if (panel.ShowRowHeaders == true)
{
r2.X += panel.RowHeaderWidth;
r2.Width -= panel.RowHeaderWidth;
}
if (SuperGrid.DoPreRenderPanelRowEvent(g,
ipanel, RenderParts.Background | RenderParts.Border, r2) == false)
{
RenderRowBackground(g, ipanel, r2);
RenderRowBorder(g, panel, r2);
SuperGrid.DoPostRenderPanelRowEvent(g,
ipanel, RenderParts.Background | RenderParts.Border, r2);
}
RenderTreeLines(g, panel, ipanel, r, isSubPanel);
RenderRowCheckBox(g, panel, ipanel);
item.Render(renderInfo);
if (panel.ShowRowHeaders == true)
{
r2 = r;
r2.Width = panel.RowHeaderWidth;
if (SuperGrid.DoPreRenderPanelRowEvent(g,
ipanel, RenderParts.RowHeader, r2) == false)
{
RenderRowHeader(renderInfo, panel, ipanel, pstyle, r2);
SuperGrid.DoPostRenderPanelRowEvent(g,
ipanel, RenderParts.RowHeader, r2);
}
}
}
}
else
{
Rectangle r = item.BoundsRelative;
if (isFrozen == false)
r.Y -= VScrollOffset;
if (isSubPanel == true)
r.X -= HScrollOffset;
if (r.Y > t.Bottom)
break;
if (r.IntersectsWith(renderInfo.ClipRectangle))
item.Render(renderInfo);
}
}
}
}
private void RenderScrollBoxArea(GridRenderInfo renderInfo)
{
if (_HScrollBar.Visible && _VScrollBar.Visible)
{
Rectangle r = _HScrollBar.Bounds;
r.X = _VScrollBar.Bounds.X;
r.Width = _VScrollBar.Bounds.Width;
if (r.IntersectsWith(renderInfo.ClipRectangle))
renderInfo.Graphics.FillRectangle(SystemBrushes.Control, r);
}
}
private void RenderDesignerElement(
GridRenderInfo renderInfo, Rectangle r)
{
if (SuperGrid.DesignerElement == this)
{
r.X -= 2;
r.Y++;
r.Height -= 4;
r.Width += 5;
if (r.Width > 0 && r.Height > 0)
{
using (Pen pen = new Pen(Color.Purple))
{
pen.DashStyle = DashStyle.Dash;
renderInfo.Graphics.DrawRectangle(pen, r);
}
}
}
}
private GridRenderInfo GetGridRenderInfo(PaintEventArgs e)
{
GridRenderInfo renderInfo =
new GridRenderInfo(e.Graphics, Rectangle.Ceiling(e.ClipRectangle));
renderInfo.RightToLeft = (RightToLeft == RightToLeft.Yes);
return (renderInfo);
}
protected override void RenderOverride(GridRenderInfo renderInfo)
{
GridPanel panel = GridPanel;
if (panel != null)
{
Rectangle r = Bounds;
if (r.IntersectsWith(renderInfo.ClipRectangle))
{
Graphics g = renderInfo.Graphics;
GroupHeaderVisualStyle style = GetEffectiveStyle();
if (SuperGrid.DoPreRenderGroupHeaderEvent(g,
this, RenderParts.Background | RenderParts.RowHeader, r) == false)
{
RenderGroupBackground(g, style, r);
RenderRowHeader(g, panel, style, r);
SuperGrid.DoPostRenderGroupHeaderEvent(g,
this, RenderParts.Background | RenderParts.RowHeader, r);
}
if (CanShowRowHeader(panel) == true)
{
r.X += panel.RowHeaderWidth;
r.Width -= panel.RowHeaderWidth;
}
RenderHeaderExpand(g, panel, ref r);
r = GetAdjustedBounds(style, r);
if (r.Height < panel.GroupHeaderHeight)
r.Height = panel.GroupHeaderHeight;
if (SuperGrid.DoPreRenderGroupHeaderEvent(g,
this, RenderParts.Content, r) == false)
{
RenderHeaderText(g, style, r);
RenderHeaderUnderline(g, panel, style, r);
SuperGrid.DoPostRenderGroupHeaderEvent(g,
this, RenderParts.Content, r);
}
}
if (Rows != null && Expanded == true)
{
foreach (GridElement item in Rows)
{
if (item.Visible == true)
item.Render(renderInfo);
}
}
}
}
private void RenderDesignerElement(
GridRenderInfo renderInfo, Rectangle r)
{
if (SuperGrid.DesignerElement == this)
{
int n = r.Y - (GridPanel.ColumnHeader.Bounds.Y + 4);
r.X += 2;
r.Y = GridPanel.ColumnHeader.Bounds.Y - 4;
r.Width -= 6;
r.Height += n + 4;
if (r.Width > 0 && r.Height > 0)
{
using (Pen pen = new Pen(Color.Purple))
{
pen.DashStyle = DashStyle.Dash;
renderInfo.Graphics.DrawRectangle(pen, r);
}
}
}
}
/// <summary>
/// This method is used by the items internally to invoke the rendering
/// for the item. Override RenderOverride method to perform actual rendering.
/// </summary>
/// <param name="renderInfo">Holds contextual rendering information.</param>
internal void Render(GridRenderInfo renderInfo)
{
RenderOverride(renderInfo);
}
protected virtual void RenderRow(
GridRenderInfo renderInfo, GridPanel panel, Rectangle r)
{
Graphics g = renderInfo.Graphics;
TextRowVisualStyle style = GetEffectiveStyle();
GridPanelVisualStyle pstyle = panel.GetEffectiveStyle();
Image image = style.GetImage(panel);
Rectangle tb, ib;
r = GetItemBounds(panel, image, style, r, out tb, out ib);
if (SuperGrid.DoPreRenderTextRowEvent(g, this, RenderParts.Background, r) == false)
{
RenderRowBackground(g, style, r);
SuperGrid.DoPostRenderTextRowEvent(g, this, RenderParts.Background, r);
}
RenderBorder(g, panel, pstyle, r);
if (SuperGrid.DoPreRenderTextRowEvent(g, this, RenderParts.Border, r) == false)
{
RenderRowBorder(g, style, r);
SuperGrid.DoPostRenderTextRowEvent(g, this, RenderParts.Border, r);
}
if (style.ImageOverlay != ImageOverlay.Top)
RenderRowImage(g, panel, style, ib);
if (SuperGrid.DoPreRenderTextRowEvent(g, this, RenderParts.Content, r) == false)
{
RenderRowText(g, style, tb);
SuperGrid.DoPostRenderTextRowEvent(g, this, RenderParts.Content, tb);
}
if (style.ImageOverlay == ImageOverlay.Top)
RenderRowImage(g, panel, style, ib);
if (SuperGrid.DoPreRenderTextRowEvent(g, this, RenderParts.RowHeader, r) == false)
{
RenderRowHeader(g, panel, pstyle, r);
SuperGrid.DoPostRenderTextRowEvent(g, this, RenderParts.RowHeader, r);
}
}
protected override void RenderRow(
GridRenderInfo renderInfo, GridPanel panel, Rectangle r)
{
base.RenderRow(renderInfo, panel, r);
Graphics g = renderInfo.Graphics;
if (CanShowRowHeader(panel) == true)
{
r.X += panel.RowHeaderWidth;
r.Width -= panel.RowHeaderWidth;
}
Region oldClip = g.Clip;
try
{
g.SetClip(r, CombineMode.Intersect);
if (_GroupBoxes.Count > 1)
{
GridPanelVisualStyle pstyle = panel.GetEffectiveStyle();
GridGroupBox lastBox = null;
foreach (GridGroupBox box in _GroupBoxes)
{
if (box.Column != null)
{
RenderGroupBox(panel, box, lastBox, g, pstyle);
lastBox = box;
}
}
}
else
{
RenderWaterMarkText(panel, g);
}
}
finally
{
g.Clip = oldClip;
}
if (_InsertRect.IsEmpty == false)
g.DrawImageUnscaled(InsertMarker, _InsertRect);
}
