/// <summary> /// this function checks if the user hit the expand (+) or collapse (-) icon. /// if it was hit it will return true /// </summary> /// <param name="e">mouse click event arguments</param> /// <returns>returns true if the icon was hit, false otherwise</returns> internal bool IsIconHit(DataGridViewCellMouseEventArgs e) { if (e.ColumnIndex < 0) { return(false); } OfferBookGrid grid = (OfferBookGrid)this.DataGridView; Rectangle rowBounds = grid.GetRowDisplayRectangle(this.Index, false); int x = e.X; //DataGridViewColumn c = grid.Columns[e.ColumnIndex]; //if (this.isGroupRow && // (c.DisplayIndex == 0) && // (x > rowBounds.Left + 4) && // (x < rowBounds.Left + 16) && // (e.Y > rowBounds.Height - 18) && // (e.Y < rowBounds.Height - 7)) // return true; DataGridViewColumn c; switch (((OfferBookGrid)this.DataGridView).Type) { case GridType.Buy: c = grid.Columns[e.ColumnIndex]; if (this.isGroupRow && (c.DisplayIndex == 0) && (x > rowBounds.Left + 4) && (x < rowBounds.Left + 16) && (e.Y > rowBounds.Height - 18) && (e.Y < rowBounds.Height - 7)) { return(true); } break; case GridType.Sell: c = grid.Columns[e.ColumnIndex]; if (this.isGroupRow && (c.DisplayIndex == 2) && (x > c.Width - 15) && (x < c.Width - 5) && (e.Y < rowBounds.Height - 7) && (e.Y > rowBounds.Height - 18)) { return(true); } break; } return(false); }
/// <summary> /// the main difference with a Group row and a regular row is the way it is painted on the control. /// the Paint method is therefore overridden and specifies how the Group row is painted. /// Note: this method is not implemented optimally. It is merely used for demonstration purposes /// </summary> /// <param name="graphics"></param> /// <param name="clipBounds"></param> /// <param name="rowBounds"></param> /// <param name="rowIndex"></param> /// <param name="rowState"></param> /// <param name="isFirstDisplayedRow"></param> /// <param name="isLastVisibleRow"></param> protected override void Paint(System.Drawing.Graphics graphics, System.Drawing.Rectangle clipBounds, System.Drawing.Rectangle rowBounds, int rowIndex, DataGridViewElementStates rowState, bool isFirstDisplayedRow, bool isLastVisibleRow) { if (this.isGroupRow) { OfferBookGrid grid = (OfferBookGrid)this.DataGridView; int rowHeadersWidth = grid.RowHeadersVisible ? grid.RowHeadersWidth : 0; // this can be optimized Color color = base.DataGridView.AlternatingRowsDefaultCellStyle.BackColor; Brush brush = new SolidBrush(grid.GroupHeaderBackColor); Brush brush2 = new SolidBrush(grid.GroupHeaderUnderlineColor); Brush brush3 = new SolidBrush(grid.GroupHeaderFontColor); int gridwidth = grid.Columns.GetColumnsWidth(DataGridViewElementStates.Displayed); Rectangle rowBounds2 = grid.GetRowDisplayRectangle(this.Index, true); // draw the background graphics.FillRectangle(brush, rowBounds.Left + rowHeadersWidth - grid.HorizontalScrollingOffset, rowBounds.Top, gridwidth, rowBounds.Height - 1); // draw text, using the current grid font string[] s = group.Text.Split('|'); SizeF stringSize = new SizeF(); stringSize = graphics.MeasureString(s[1], grid.GroupHeaderFont); // Não mostrar a corretora //graphics.DrawString(s[0], grid.GroupHeaderFont, brush3, grid.Columns[0].Width - stringSize.Width - 5, rowBounds.Bottom - 18); if (stringSize.Width > (grid.Columns[1].Width - 10)) { string texto = s[1].ToInt64().ToNumeroAbreviado(); stringSize = graphics.MeasureString(texto, grid.GroupHeaderFont); graphics.DrawString(texto, grid.GroupHeaderFont, brush3, grid.Columns[0].Width + grid.Columns[1].Width - stringSize.Width - 5, rowBounds.Bottom - 18); } else { switch (((OfferBookGrid)this.DataGridView).Type) { case GridType.Buy: graphics.DrawString(s[1], grid.GroupHeaderFont, brush3, grid.Columns[0].Width + grid.Columns[1].Width - stringSize.Width - 5, rowBounds.Bottom - 18); break; case GridType.Sell: graphics.DrawString(s[1], grid.GroupHeaderFont, brush3, grid.Columns[0].Width + 5, rowBounds.Bottom - 18); break; } } stringSize = graphics.MeasureString(s[2], grid.GroupHeaderFont); switch (((OfferBookGrid)this.DataGridView).Type) { case GridType.Buy: graphics.DrawString(s[2], grid.GroupHeaderFont, brush3, grid.Columns[0].Width + grid.Columns[1].Width + grid.Columns[2].Width - stringSize.Width - 5, rowBounds.Bottom - 18); break; case GridType.Sell: graphics.DrawString(s[2], grid.GroupHeaderFont, brush3, rowBounds.Left + rowHeadersWidth - grid.HorizontalScrollingOffset + 4, rowBounds.Bottom - 18); break; } //draw bottom line graphics.FillRectangle(brush2, rowBounds.Left + rowHeadersWidth - grid.HorizontalScrollingOffset, rowBounds.Bottom - 2, gridwidth - 1, 1); // draw right vertical bar if (grid.CellBorderStyle == DataGridViewCellBorderStyle.SingleVertical || grid.CellBorderStyle == DataGridViewCellBorderStyle.Single) { graphics.FillRectangle(brush2, rowBounds.Left + rowHeadersWidth - grid.HorizontalScrollingOffset + gridwidth - 1, rowBounds.Top, 1, rowBounds.Height); } if (group.Collapsed) { switch (((OfferBookGrid)this.DataGridView).Type) { case GridType.Buy: if (grid.ExpandIcon != null) { graphics.DrawImage(grid.ExpandIcon, rowBounds.Left + rowHeadersWidth - grid.HorizontalScrollingOffset + 4, rowBounds.Bottom - 18, 11, 11); } break; case GridType.Sell: if (grid.ExpandIcon != null) { //graphics.DrawImage(grid.ExpandIcon, grid.Columns[0].Width + grid.Columns[1].Width + grid.Columns[2].Width - 15, rowBounds.Bottom - 18, 11, 11); graphics.DrawImage(grid.ExpandIcon, rowBounds.Right - 15, rowBounds.Bottom - 18, 11, 11); } break; } } else { //if (grid.CollapseIcon != null) // Graphics.DrawImage(grid.CollapseIcon, rowBounds.Left + rowHeadersWidth - grid.HorizontalScrollingOffset + 4, rowBounds.Bottom - 18, 11, 11); switch (((OfferBookGrid)this.DataGridView).Type) { case GridType.Buy: if (grid.ExpandIcon != null) { graphics.DrawImage(grid.CollapseIcon, rowBounds.Left + rowHeadersWidth - grid.HorizontalScrollingOffset + 4, rowBounds.Bottom - 18, 11, 11); } break; case GridType.Sell: if (grid.ExpandIcon != null) { graphics.DrawImage(grid.CollapseIcon, rowBounds.Right - 15, rowBounds.Bottom - 18, 11, 11); } break; } } brush.Dispose(); brush2.Dispose(); brush3.Dispose(); } base.Paint(graphics, clipBounds, rowBounds, rowIndex, rowState, isFirstDisplayedRow, isLastVisibleRow); }