Dispose RTF in OwnerDraw
Added Properties and Methods for UnEven Selection
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2876ad911a
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c3cc1f3417
@ -311,39 +311,41 @@ namespace Volian.Controls.Library
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private void Grid_OwnerDrawCell(object sender, C1.Win.C1FlexGrid.OwnerDrawCellEventArgs e)
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{
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RTF _rtf = new RTF();
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// use nearest solid color
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// (the RTF control doesn't dither, and doesn't support transparent backgrounds)
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Color solid = e.Graphics.GetNearestColor(e.Style.BackColor);
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if (e.Style.BackColor != solid)
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e.Style.BackColor = solid;
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// check whether the cell contains RTF
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string rtfText = this.GetDataDisplay(e.Row, e.Col);
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if (rtfText.StartsWith(@"{\rtf"))
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using (RTF _rtf = new RTF())
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{
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// it does, so draw background
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e.DrawCell(DrawCellFlags.Background);
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// use nearest solid color
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// (the RTF control doesn't dither, and doesn't support transparent backgrounds)
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Color solid = e.Graphics.GetNearestColor(e.Style.BackColor);
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if (e.Style.BackColor != solid)
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e.Style.BackColor = solid;
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// draw the RTF text
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if (e.Bounds.Width > 0 && e.Bounds.Height > 0)
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// check whether the cell contains RTF
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string rtfText = this.GetDataDisplay(e.Row, e.Col);
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if (rtfText.StartsWith(@"{\rtf"))
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{
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_rtf.Width = Cols[e.Col].Width;
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_rtf.Rtf = rtfText;
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_rtf.ForeColor = e.Style.ForeColor;
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_rtf.BackColor = e.Style.BackColor;
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_rtf.Render(e.Graphics, e.Bounds);
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//CellRange cr = GetCellRange(e.Row, e.Col);
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//Console.WriteLine("ownerDraw UserData [{0},{1}] = {2}", cr.r1, cr.c1, _rtf.ContentsRectangle.Height);
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//cr.UserData = _rtf.ContentsRectangle.Height;
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}
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// it does, so draw background
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e.DrawCell(DrawCellFlags.Background);
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// and draw border last
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e.DrawCell(DrawCellFlags.Border);
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// This can be used to draw more specific borders
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// DrawCellBorder(e.Graphics, e.Bounds,e.Row,e.Col);
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// we're done with this cell
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e.Handled = true;
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// draw the RTF text
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if (e.Bounds.Width > 0 && e.Bounds.Height > 0)
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{
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_rtf.Width = Cols[e.Col].Width;
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_rtf.Rtf = rtfText;
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_rtf.ForeColor = e.Style.ForeColor;
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_rtf.BackColor = e.Style.BackColor;
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_rtf.Render(e.Graphics, e.Bounds);
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//CellRange cr = GetCellRange(e.Row, e.Col);
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//Console.WriteLine("ownerDraw UserData [{0},{1}] = {2}", cr.r1, cr.c1, _rtf.ContentsRectangle.Height);
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//cr.UserData = _rtf.ContentsRectangle.Height;
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}
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// and draw border last
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e.DrawCell(DrawCellFlags.Border);
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// This can be used to draw more specific borders
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// DrawCellBorder(e.Graphics, e.Bounds,e.Row,e.Col);
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// we're done with this cell
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e.Handled = true;
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}
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}
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}
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private void DrawCellBorder(Graphics graphics, Rectangle rectangle, int row, int col)
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@ -1897,7 +1899,149 @@ namespace Volian.Controls.Library
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// }
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//}
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}
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#region Uneven Selections
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/// <summary>
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/// True if the top and bottom row of the selection is the same for every column
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/// </summary>
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public bool EvenSelection
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{
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get
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{
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if (Selection.c1 < 0 || Selection.c2 < 0 || Selection.r1 < 0 || Selection.r2 < 0) return true; // Even if there is no selection
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if (Selection.IsSingleCell) return true; // One cell by definition is Even
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int cMin = MinimumColumn(Selection.r1, Selection.c1); // Get the left column of the top row
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int cMax = MaximumColumn(Selection.r1, Selection.c2); // Get the right column of the top row
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for (int r = Selection.r1 + 1; r <= Selection.r2; r++)
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{
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// Uneven if the top row in this column doesn't match the first column
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if (MinimumColumn(r, Selection.c1) != cMin)
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return false;
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// Uneven if the bottom row in this column doesn't match the first column
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if (MaximumColumn(r, Selection.c2) != cMax)
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return false;
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}
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int rMin = MinimumRow(Selection.r1, Selection.c1); // Get the top row of the left column
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int rMax = MaximumRow(Selection.r2, Selection.c1); // Get the bottom row of the left column
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for (int c = Selection.c1 + 1; c <= Selection.c2; c++)
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{
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// Uneven if the top row in this column doesn't match the first column
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if (MinimumRow(Selection.r1, c) != rMin)
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return false;
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// Uneven if the bottom row in this column doesn't match the first column
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if (MaximumRow(Selection.r2, c) != rMax)
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return false;
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}
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return true;
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}
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}
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public void MakeSelectionEven()
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{
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if (Selection.IsSingleCell) return; // One cell by definition is Even
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MakeSelectionEven(Selection.r1, Selection.c1, Selection.r2, Selection.c2);
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}
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public void SelectRow()
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{
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MakeSelectionEven(Selection.r1, 0, Selection.r2, Cols.Count - 1);
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}
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public void SelectCol()
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{
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MakeSelectionEven(0, Selection.c1, Rows.Count - 1, Selection.c2);
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}
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public void MakeSelectionEven(int r1,int c1, int r2, int c2)
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{
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if (c1 < 0 || c2 < 0 || r1 < 0 || r2 < 0) return; // if there is no selection don't bother
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int cMinNew = MinimumColumn(r1, c1); // Get the left column of the top row
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int cMaxNew = MaximumColumn(r1, c2); // Get the right column of the top row
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int rMinNew = MinimumRow(r1, c1); // Get the top row of the left column
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int rMaxNew = MaximumRow(r2, c1); // Get the bottom row of the left column
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int cMin = cMinNew;
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int cMax = cMaxNew;
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int rMin = rMinNew;
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int rMax = rMaxNew;
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do
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{
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cMin = cMinNew;
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cMax = cMaxNew;
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rMin = rMinNew;
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rMax = rMaxNew;
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for (int r = rMin; r <= rMax; r++)
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{
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// Uneven if the top row in this column doesn't match the first column
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int myMin = MinimumColumn(r, cMin);
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if (myMin < cMinNew)
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cMinNew = myMin;
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// Uneven if the bottom row in this column doesn't match the first column
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int myMax = MaximumColumn(r, cMax);
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if (myMax > cMaxNew)
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cMaxNew = myMax;
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}
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for (int c = cMinNew; c <= cMaxNew; c++)
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{
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// if the top row in this column is less than the minimum save it
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int myMin = MinimumRow(rMin, c);
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if (myMin < rMinNew)
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rMinNew = myMin;
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// Uneven if the bottom row in this column doesn't match the first column
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int myMax = MaximumRow(rMax, c);
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if (myMax > rMax)
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rMaxNew = myMax;
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}
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}
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while (cMinNew < cMin || cMaxNew > cMax || rMinNew < rMin || rMaxNew > rMax);
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Select(rMinNew, cMinNew, rMaxNew, cMaxNew);
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}
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private int MinimumColumn(int r, int c)
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{
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return GetMergedRange(r, c).c1;
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}
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private int MaximumColumn(int r, int c)
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{
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return GetMergedRange(r, c).c2;
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}
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private int MinimumRow(int r, int c)
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{
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return GetMergedRange(r, c).r1;
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}
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private int MaximumRow(int r, int c)
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{
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return GetMergedRange(r, c).r2;
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}
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/// <summary>
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/// Returns a list of cells or merged cells within the selection
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/// </summary>
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public List<CellRange> MySelection
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{
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get
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{
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List<CellRange> ranges = new List<CellRange>();
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for (int c = Selection.c1; c <= Selection.c2; c++)
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for (int r = Selection.r1; r <= Selection.r2; r++)
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{
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CellRange cr = GetMergedRange(r, c);
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if (!ranges.Contains(cr))
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ranges.Add(cr);
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}
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//}
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return ranges;
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}
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}
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/// <summary>
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/// This is a test to see if MySelection works.
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/// </summary>
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public void BoldMySelection()
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{
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foreach (CellRange cr in MySelection)
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{
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StepRTB rtb = new StepRTB();
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rtb.Rtf = GetCellRTFString(cr.r1, cr.c1);
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rtb.SelectAll();
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rtb.SelectionFont = new Font(rtb.SelectionFont, FontStyle.Bold);
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this[cr.r1, cr.c1] = rtb.Rtf;
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}
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}
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#endregion
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}
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#region RTF Class for Cell rendering
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class RTF : StepRTB //RichTextBox
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{
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