// Insert a bar item at a specified index protected void InsertItem(int nIndex, HBarData item) { arrItem.Insert(nIndex, item); if (dMaximumValue < item.Value) { dMaximumValue = item.Value; } }
// Get a bar item public bool GetAt(int nIndex, out HBarData bar) { bar = null; if (nIndex < 0 || arrItem.Count <= nIndex) { return(false); } bar = ((HBarData)arrItem[nIndex]); return(true); }
// Add a new bar item protected void AddItem(HBarData item) { arrItem.Add(item); // Set first value as the maximum. If control modified to support negeative numbers // This will help to calculate true maximum, the reason is that the default is 0 // which is always bigger than negative values, thus it's always bigger than all // values, while maximum value of array is something else(it's also negative) not 0 if (arrItem.Count == 1) { dMaximumValue = item.Value; } else if (dMaximumValue < item.Value) { dMaximumValue = item.Value; } }
// Insert a bar at a specified index protected void InsertItem(int nIndex, double dValue, string strLabel, Color colorBar) { HBarData item = new HBarData(dValue, strLabel, colorBar); InsertItem(nIndex, item); }
// Add a new bar protected void AddItem(double dValue, string strLabel, Color colorBar) { HBarData item = new HBarData(dValue, strLabel, colorBar); AddItem(item); }
// Draw a bar with label & valu using specified index bouned to the // specified rectangle of the selected bitmap of specified graphics object private void DrawBar(Graphics gr, RectangleF rectBar, HBarData bar) { // Some calculations if (rectBar.Height <= 0) { rectBar.Height = 1; } int nAlphaStart = (int)(185 + 5 * rectBar.Width / 24), nAlphaEnd = (int)(10 + 4 * rectBar.Width / 24); if (nAlphaStart > 255) { nAlphaStart = 255; } else if (nAlphaStart < 0) { nAlphaStart = 0; } if (nAlphaEnd > 255) { nAlphaEnd = 255; } else if (nAlphaEnd < 0) { nAlphaEnd = 0; } Color ColorBacklight = bar.Colour; Color ColorBacklightEnd = Color.FromArgb(50, 0, 0, 0); Color ColorGlowStart = Color.FromArgb(nAlphaEnd, 255, 255, 255); Color ColorGlowEnd = Color.FromArgb(nAlphaStart, 255, 255, 255); Color ColorFillBK = GetDarkerColour(bar.Colour, 85); Color ColorBorder = GetDarkerColour(bar.Colour, 100); // Draw a single bar. #region BarItself RectangleF er = new RectangleF(rectBar.Left, rectBar.Top - rectBar.Height / 2, rectBar.Width * 2, rectBar.Height * 2); GraphicsPath rctPath = new GraphicsPath(); rctPath.AddEllipse(er); PathGradientBrush pgr = new PathGradientBrush(rctPath); pgr.CenterPoint = new PointF(rectBar.Right, rectBar.Top + rectBar.Height / 2); pgr.CenterColor = ColorBacklight; pgr.SurroundColors = new Color[] { ColorBacklightEnd }; RectangleF rectGlow = new RectangleF(rectBar.Left, rectBar.Top, rectBar.Width / 2, rectBar.Height); LinearGradientBrush brGlow = new LinearGradientBrush( new PointF(rectGlow.Right + 1, rectGlow.Top), new PointF(rectGlow.Left - 1, rectGlow.Top), ColorGlowStart, ColorGlowEnd); gr.FillRectangle(new SolidBrush(ColorFillBK), rectBar); //gr.FillRectangle(new SolidBrush(Color.FromArgb(255, 0, 0, 0)), rectBar); gr.FillRectangle(pgr, rectBar); gr.FillRectangle(brGlow, rectGlow); gr.DrawRectangle(new Pen(ColorBorder, 1), rectBar.Left, rectBar.Top, rectBar.Width, rectBar.Height); #endregion // Draw label if (Label.Visible) { float nLabelHeight = Label.Font.GetHeight(gr); gr.DrawString( bar.Label, Label.Font, new SolidBrush(Label.Colour), new RectangleF( rectBar.X, rectBar.Bottom + nBarsGap, rectBar.Width, nLabelHeight)); } // Draw value or % if (Values.Visible) { string strValue = string.Empty; if (Values.Mode == CValueProperty.ValueMode.Digit) { strValue = bar.Value.ToString("F1"); } else if (Values.Mode == CValueProperty.ValueMode.Percent) { double dTotal = bars.TotalValue; if (dTotal > 0) { strValue = ((double)(bar.Value / dTotal)).ToString("P1", System.Globalization.CultureInfo.CurrentCulture); } } float fValueHeight = Values.Font.GetHeight(gr); gr.DrawString( strValue, Values.Font, new SolidBrush(Values.Colour), new RectangleF( rectBar.X, rectBar.Top - fValueHeight - 1, rectBar.Width + 2 * nBarsGap, fValueHeight)); } }
private void CreateLabelFont(Graphics gr, SizeF sizeBar) { float fFontSize = 100 + (sizeBar.Width / 24); if (fFontSize <= 0) { fFontSize = 1; } // Set font style string strFontName; FontStyle fntStyle; if (Label.Font == null) { strFontName = "Tahoma"; fntStyle = FontStyle.Regular; } else { strFontName = Label.Font.Name; fntStyle = Label.Font.Style; } Label.Font = new Font(strFontName, fFontSize, fntStyle); // Get lengthiest label HBarData bar = null; SizeF sizeMax = new SizeF(0, 0); SizeF sizeText; for (int i = 0; i < bars.Count; i++) { if (bars.GetAt(i, out bar)) { sizeText = gr.MeasureString(bar.Label, Label.Font); if (sizeText.Width > sizeMax.Width) { sizeMax = sizeText; } } } sizeText = sizeMax; // Fit text in client area if needed if (sizeText.Width > sizeBar.Width) { float fWidthRatio = sizeBar.Width / sizeText.Width; fFontSize = (Label.Font.Size * fWidthRatio); // Recreate font if needed if (fFontSize > 0) { Label.Font.Dispose(); Label.Font = null; Label.Font = new Font(strFontName, fFontSize, fntStyle); } } }
private void CreateValueFont(Graphics gr, SizeF sizeBar) { // Set font style string strFontName; FontStyle fntStyle; float fFontSize = 100 + (sizeBar.Width / 24); if (fFontSize <= 0) { fFontSize = 1; } if (Values.Font == null) { strFontName = "Tahoma"; fntStyle = FontStyle.Regular; } else { strFontName = Values.Font.Name; fntStyle = Values.Font.Style; } Values.Font = new Font(strFontName, fFontSize, fntStyle); // Get lengthiest label HBarData bar = null; string strValue = string.Empty; string strLargestValue = string.Empty; double dTotal = bars.TotalValue; for (int i = 0; i < bars.Count; i++) { if (bars.GetAt(i, out bar)) { if (Values.Mode == CValueProperty.ValueMode.Digit) { strValue = String.Format("{0:F1}", bar.Value); } else if (Values.Mode == CValueProperty.ValueMode.Percent) { if (dTotal > 0) { strValue = ((double)(bar.Value / dTotal)).ToString("P1", System.Globalization.CultureInfo.CurrentCulture); } } if (strValue.Length > strLargestValue.Length) { strLargestValue = strValue; } } } SizeF sizeText = gr.MeasureString(strValue, Values.Font); // Fit text in client area if needed if (sizeText.Width > sizeBar.Width) { float fWidthRatio = sizeBar.Width / sizeText.Width; fFontSize = (Values.Font.Size * fWidthRatio); // Recreate font if needed if (fFontSize > 0) { Values.Font.Dispose(); Values.Font = null; Values.Font = new Font(strFontName, fFontSize, fntStyle); } } }
public bool GetAt(int nIndex, out HBarData bar) { return(bars.GetAt(nIndex, out bar)); }