private static void OnMinorScaleCountChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { IndicatorMeter owner = d as IndicatorMeter; /* 属性更改后需要立刻重绘刻度 */ owner.DrawScale(owner.PrimaryScaleRaduisInner, owner.PrimaryScaleRadiusOuter, owner.PrimaryScaleCount, owner.MinorScaleRadiusInner, owner.MinorScaleRadiusOuter, owner.MinorScaleCount, owner.PrimaryScaleStartAngle, owner.PrimaryScaleEndAngle, owner.PrimaryScaleWitdh, owner.PrimaryScaleBackground); }
private static void OnMaxChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { IndicatorMeter owner = d as IndicatorMeter; if (owner.Max <= owner.Min) { owner.Max = owner.Min; return; } if (owner.Max < owner.IndicatorValue) { owner.IndicatorValue = owner.Max; } if (owner.Max < owner.RangeBarMax) { owner.RangeBarMax = owner.Max; } /* 属性更改后需要立刻重绘刻度 */ owner.DrawScale(owner.PrimaryScaleRaduisInner, owner.PrimaryScaleRadiusOuter, owner.PrimaryScaleCount, owner.MinorScaleRadiusInner, owner.MinorScaleRadiusOuter, owner.MinorScaleCount, owner.PrimaryScaleStartAngle, owner.PrimaryScaleEndAngle, owner.PrimaryScaleWitdh, owner.PrimaryScaleBackground); // 更改Indicator Bar颜色 owner.ChangeIndicatorBarBackground(); }
private static void OnIndicatorBarPatternChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { IndicatorMeter owner = d as IndicatorMeter; owner.IndicatorBarPattern.Sort(SortCompare); owner.ChangeIndicatorBarBackground(); }
private static void OnPrimaryScaleRaduisInnerChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { IndicatorMeter owner = d as IndicatorMeter; double val = (double)e.NewValue; /* 如果内圈半径大于外圈半径,则令内圈半径等于外圈半径 */ if (val >= owner.PrimaryScaleRadiusOuter) { owner.PrimaryScaleRaduisInner = owner.PrimaryScaleRadiusOuter; return; } else { /* 属性更改后需要立刻重绘刻度 */ owner.DrawScale(owner.PrimaryScaleRaduisInner, owner.PrimaryScaleRadiusOuter, owner.PrimaryScaleCount, owner.MinorScaleRadiusInner, owner.MinorScaleRadiusOuter, owner.MinorScaleCount, owner.PrimaryScaleStartAngle, owner.PrimaryScaleEndAngle, owner.PrimaryScaleWitdh, owner.PrimaryScaleBackground); } }
private static void OnIndicatorValueChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { double indicator_bar_angle; IndicatorMeter owner = d as IndicatorMeter; double value = (double)e.NewValue; // 显示指示值文本 if (double.IsNaN(value)) { owner.txt_Value.Text = "N/A"; indicator_bar_angle = 0; // 如果输入的值是double.NaN,则指示条指向最小值 } else { if (value > owner.Max) { owner.IndicatorValue = owner.Max; return; } if (value < owner.Min) { owner.IndicatorValue = owner.Min; return; } owner.txt_Value.Text = value.ToString(); indicator_bar_angle = 280 * (owner.IndicatorValue - owner.Min) / (owner.Max - owner.Min); // 根据指示值计算指示条的角度 /* 如果 Min == Max,则会出现 Max - Min = 0 的情况,此时indicator_bar_angle == double.NaN */ if (double.IsNaN(indicator_bar_angle)) { indicator_bar_angle = 0; } } // 绘制Indicator Bar owner.BeginIndicatorValueChangedAnimation(indicator_bar_angle); // 更改Indicator Bar颜色 owner.ChangeIndicatorBarBackground(); }
private static void OnRangeBarMaxChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { IndicatorMeter owner = d as IndicatorMeter; double max = (double)e.NewValue; if (max > owner.Max) { owner.RangeBarMax = owner.Max; return; } if (max < owner.Min) { owner.RangeBarMax = owner.RangeBarMin; return; } double div = (max - owner.Min) / (owner.Max - owner.Min); double angle = 280 * div; owner.RangeBar.EndAngle = angle; owner.ChangeIndicatorBarBackground(); }
private static void OnTitleVisibilityChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { IndicatorMeter owner = d as IndicatorMeter; owner.txt_Title.Visibility = (Visibility)e.NewValue; }
private static void OnTitleChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { IndicatorMeter owner = d as IndicatorMeter; owner.txt_Title.Text = e.NewValue.ToString(); }
private static void OnIndicatorBarBackgroundChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { IndicatorMeter owner = d as IndicatorMeter; owner.ChangeIndicatorBarBackground(); }
private static void OnRangeBarBackgroundChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { IndicatorMeter owner = d as IndicatorMeter; owner.RangeBar.Stroke = e.NewValue as SolidColorBrush; }
private static void OnRangeBarVisibleChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { IndicatorMeter owner = d as IndicatorMeter; owner.RangeBar.Visibility = (Visibility)e.NewValue; }