void ApplyStyle() { HorizontalAlignment horAlignment = BindingCell.ToHorizontalAlignment(); if (_tb.HorizontalAlignment != horAlignment) { _tb.HorizontalAlignment = horAlignment; } // uno绘制Right位置错误,慎用TextAlignment! //Windows.UI.Xaml.TextAlignment textAlignment; //switch (horAlignment) //{ // case HorizontalAlignment.Center: // textAlignment = Windows.UI.Xaml.TextAlignment.Center; // break; // case HorizontalAlignment.Right: // textAlignment = Windows.UI.Xaml.TextAlignment.Right; // break; // default: // textAlignment = Windows.UI.Xaml.TextAlignment.Left; // break; //} //if (_tb.TextAlignment != textAlignment) // _tb.TextAlignment = textAlignment; VerticalAlignment verAlignment; switch (BindingCell.ActualVerticalAlignment) { case CellVerticalAlignment.Top: verAlignment = VerticalAlignment.Top; break; case CellVerticalAlignment.Bottom: verAlignment = VerticalAlignment.Bottom; break; default: verAlignment = VerticalAlignment.Center; break; } if (_tb.VerticalAlignment != verAlignment) { _tb.VerticalAlignment = verAlignment; } var foreground = BindingCell.ActualForeground; if (foreground == null) { // 默认黑色 if (_tb.ReadLocalValue(TextBlock.ForegroundProperty) != DependencyProperty.UnsetValue) { _tb.ClearValue(TextBlock.ForegroundProperty); } } else if (foreground != _tb.Foreground) { _tb.Foreground = foreground; } var fontStyle = BindingCell.ActualFontStyle; if (_tb.FontStyle != fontStyle) { _tb.FontStyle = fontStyle; } var fontWeight = BindingCell.ActualFontWeight; if (_tb.FontWeight.Weight != fontWeight.Weight) { _tb.FontWeight = fontWeight; } var fontFamily = BindingCell.ActualFontFamily; if (fontFamily != null && _tb.FontFamily.Source != fontFamily.Source) { _tb.FontFamily = fontFamily; } bool wrap = BindingCell.ActualWordWrap; TextWrapping textWrap = wrap ? TextWrapping.Wrap : TextWrapping.NoWrap; if (_tb.TextWrapping != textWrap) { _tb.TextWrapping = textWrap; } double fontSize = BindingCell.ActualFontSize * ZoomFactor; double fitZoom = -1; if (!wrap && BindingCell.ActualShrinkToFit) { // 自动缩小字体适应单元格宽度 double textWidth = MeasureHelper.MeasureText( _tb.Text, _tb.FontFamily, fontSize, _tb.FontStretch, _tb.FontStyle, _tb.FontWeight, new Size(double.PositiveInfinity, double.PositiveInfinity), false, null, _tb.UseLayoutRounding, ZoomFactor).Width; double cellWidth = BindingCell.Worksheet.GetActualColumnWidth(BindingCell.Column.Index, BindingCell.ColumnSpan, BindingCell.SheetArea) * ZoomFactor; cellWidth = MeasureHelper.ConvertExcelCellSizeToTextSize(new Size(cellWidth, double.PositiveInfinity), ZoomFactor).Width; cellWidth = Math.Max((double)0.0, (double)(cellWidth - BindingCell.ActualTextIndent * ZoomFactor)); if (cellWidth < textWidth) { fitZoom = cellWidth / textWidth; } } if (fitZoom > 0) { fontSize *= fitZoom; } if (_tb.FontSize != fontSize) { _tb.FontSize = fontSize; } // TextBlock设置Padding时,若Padding左右之和大于Measure时给的Width,uno莫名报错,布局混乱,不易发现! Thickness margin = new Thickness(); var indent = BindingCell.ActualTextIndent * ZoomFactor; if (indent > 0 && _tb.HorizontalAlignment != HorizontalAlignment.Center) { if (_tb.HorizontalAlignment == HorizontalAlignment.Right) { margin.Right += indent; } else { margin.Left += indent; } } if (_tb.Margin != margin) { _tb.Margin = margin; } // 未用到 //var fontStretch = BindingCell.ActualFontStretch; //if (_tb.FontStretch != fontStretch) // _tb.FontStretch = fontStretch; if (BindingCell.ActualUnderline) { Underline underline = new Underline(); Run run = new Run(); run.Text = _tb.Text; underline.Inlines.Add(run); _tb.Inlines.Clear(); _tb.Inlines.Add(underline); _lastUnderline = true; } else if (_lastUnderline) { string str = _tb.Text; _tb.Inlines.Clear(); _tb.Text = str; } if (BindingCell.ActualStrikethrough) { foreach (UIElement element in (_tb.Parent as Panel).Children) { if (element is StrikethroughView) { StrikethroughView view = element as StrikethroughView; if (view.LineContainer != null) { foreach (var line in view.LineContainer.Children.OfType <Line>()) { line.Stroke = _tb.Foreground; } } break; } } } }
protected override Size ArrangeOverride(Size finalSize) { if (Column == -1 || finalSize.Width < _textPadding * 2) { foreach (UIElement elem in Children) { elem.Arrange(_rcEmpty); } return(_szEmpty); } Rect?nullable = null; if (_overflowLayout != null && _overflowLayout.ContentWidth > finalSize.Width) { double w; double left = 0; switch (BindingCell.ToHorizontalAlignment()) { case HorizontalAlignment.Left: case HorizontalAlignment.Stretch: left = _textPadding; w = _overflowLayout.RightBackgroundWidth; if (w >= 0.0) { nullable = new Rect(0.0, 0.0, w, finalSize.Height); } break; case HorizontalAlignment.Right: left = finalSize.Width - _overflowLayout.LeftBackgroundWidth; w = _overflowLayout.LeftBackgroundWidth; if (w >= 0.0) { nullable = new Rect(left, 0.0, w, finalSize.Height); } break; default: left -= (_overflowLayout.ContentWidth - finalSize.Width) / 2.0; double x = 0.0; if (_overflowLayout.LeftBackgroundWidth > 0.0) { x = (finalSize.Width / 2.0) - _overflowLayout.LeftBackgroundWidth; } w = _overflowLayout.BackgroundWidth; if (w >= 0.0) { nullable = new Rect(x, 0.0, w, finalSize.Height); } break; } _tb.Arrange(new Rect(left, 0, _overflowLayout.ContentWidth + _textPadding * 2, finalSize.Height)); } else { // 文字默认边距:4,0,4,0 _tb.Arrange(new Rect(_textPadding, 0, finalSize.Width - _textPadding * 2, finalSize.Height)); } if ((_cachedClip.HasValue != nullable.HasValue) || (_cachedClip.HasValue && (_cachedClip.Value != nullable.Value))) { _cachedClip = nullable; if (nullable.HasValue) { Clip = new RectangleGeometry { Rect = nullable.Value }; } else { ClearValue(ClipProperty); } } if (Children.Count > 1) { Rect rect = new Rect(new Point(), finalSize); for (int i = 1; i < Children.Count; i++) { ((UIElement)Children[i]).Arrange(rect); } } return(finalSize); }