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C# ITextPointer.ValidateLayout方法代码示例

本文整理汇总了C#中ITextPointer.ValidateLayout方法的典型用法代码示例。如果您正苦于以下问题:C# ITextPointer.ValidateLayout方法的具体用法?C# ITextPointer.ValidateLayout怎么用?C# ITextPointer.ValidateLayout使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在ITextPointer的用法示例。


在下文中一共展示了ITextPointer.ValidateLayout方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: GetSuggestedX

        /// <summary>
        /// Returns a moving position and the suggestedX value for it.
        /// </summary>
        /// <param name="This">TextEditor</param>
        /// <param name="innerMovingPosition">Inner moving position if it has valid layout, otherwise null.</param>
        /// <returns>Returns suggestedX when moving position has valid layout, Double.NaN otherwise.</returns>
        private static Double GetSuggestedX(TextEditor This, out ITextPointer innerMovingPosition)
        {
            // When getting moving position, we need to take care of end-of-line case
            // and adjust moving position according to its orientation.
            innerMovingPosition = TextEditorSelection.GetMovingPositionInner(This);

            // We need a non-dirty layout to walk pages.
            if (!innerMovingPosition.ValidateLayout())
            {
                innerMovingPosition = null;
                return Double.NaN; // This value is not supposed to be used by a caller.
            }

            if (Double.IsNaN(This._suggestedX))
            {
                This._suggestedX = GetAbsoluteXOffset(This.TextView, innerMovingPosition);

                // If the original moving position is on the other side of a line break,
                // add in the pixel width of the line break visualization.
                // Note this logic implicitly only modifies suggested x when the
                // selection is non-empty.
                if (This.Selection.MovingPosition.CompareTo(innerMovingPosition) > 0)
                {
                    double breakWidth = (double)innerMovingPosition.GetValue(TextElement.FontSizeProperty) * CaretElement.c_endOfParaMagicMultiplier;

                    FlowDirection paragraphFlowDirection = GetScopingParagraphFlowDirection(innerMovingPosition);
                    FlowDirection controlFlowDirection = This.UiScope.FlowDirection;

                    if (paragraphFlowDirection != controlFlowDirection)
                    {
                        // Adjust for X-axis flip on Paragraphs with non-default flow direction.
                        breakWidth = -breakWidth;
                    }

                    This._suggestedX += breakWidth; 
                }
            }

            return This._suggestedX;
        }
开发者ID:nlh774,项目名称:DotNetReferenceSource,代码行数:46,代码来源:TextEditorSelection.cs


注:本文中的ITextPointer.ValidateLayout方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。