/// <summary>
/// 筛选出没有在当前 RectanglesCanvas 面板中显示的、日期更久远的记录，
/// 然后根据这些记录在 StackCanvas 面板中生成新的方块面板，接着在这些
/// 新生成的面板中着色日期更久远的记录。
/// </summary>
private void ExtendStackCanvasByFilterOldRecorders(List <StatistTotalByDateTime> oldRecorders, Rectangle earliestRectangle, int canvasOrdinal = 1)
{
if (oldRecorders != null && oldRecorders.Count > 0)
{
Canvas oldRectanglesCanvas = new Canvas()
{
Name = $"OldRectanglesCanvas_{canvasOrdinal}"
};
Rectangle oldRect = this.RectanglesLayout(oldRectanglesCanvas, DatetimeParser.ParseExpressToDateTime(earliestRectangle.Name, DateMode.DateWithSlash).AddDays(-1));
oldRectanglesCanvas.Loaded += (object sender, RoutedEventArgs e) => {
Canvas canvas = sender as Canvas;
foreach (var item in canvas.Children)
{
if (item is TextBlock tag)
{
Debug.WriteLine($"tag.ActualWidth: {tag.ActualWidth}");
}
}
};
this.StackCanvas.Children.Insert(0, oldRectanglesCanvas);
List <StatistTotalByDateTime> newOldRecorders = EarlierThanEarliestRectangle(oldRecorders, oldRect);
ExtendStackCanvasByFilterOldRecorders(newOldRecorders, oldRect, canvasOrdinal + 1);
}
// 扩展结束后，给每个 RectanglesCanvas 附加进度条
else
{
foreach (Canvas canvas in this.StackCanvas.Children)
{
ProgressBoard.SlideOn(canvas, new ProgressBoard());
}
}
}
/// <summary>
/// 该构造器接收一个字符串序列，把它转换成StatistTotalByDateTime链表，同时接收一个 DateMode 指示日期字符串的分割方式
/// </summary>
/// <param name="lines">文本序列</param>
/// <param name="dateMode">指示日期字符串的分割方式</param>
public StatistTotalByDateTimeModel(IEnumerable <string> lines, DateMode dateMode)
{
foreach (var line in lines)
{
if (line != "" && line != "\r") // 忽略空行
{
StatistTotalByDateTime statist = DatetimeParser.ParseExpressToStatistTotalByDateTime(line, dateMode);
this.Add(statist);
}
}
}
/// <summary>
/// 返回所有的事件记录中含有比 rect 的日期还要早的记录。
/// </summary>
/// <param name="entries">存储事件链的模型类</param>
/// <param name="rect">用于日期比较的目标方块</param>
/// <returns></returns>
private static List <StatistTotalByDateTime> EarlierThanEarliestRectangle(List <StatistTotalByDateTime> entries, Rectangle rect)
{
List <StatistTotalByDateTime> earlierThanEarliestRectangleLik = new List <StatistTotalByDateTime>();
foreach (var item in entries)
{
if (item.DateTime < DatetimeParser.ParseExpressToDateTime(rect.Name, DateMode.DateWithSlash))
{
earlierThanEarliestRectangleLik.Add(item);
}
}
return(earlierThanEarliestRectangleLik);
}
private static async Task <StatistTotalByDateTimeModel> EncodingToStatistTotalByDateTimeModelAsync(StorageFile file)
{
string text = await FileIO.ReadTextAsync(file);
if (file.FileType == ".txt")
{
IEnumerable <string> lines = DatetimeParser.SplitByLine(text);
return(new StatistTotalByDateTimeModel(lines));
}
else if (file.FileType == ".mast")
{
JymlAST.Cons ast = JymlParser.Parser.GenerateAst(text);
Interpreter.SuckerMLInterpreter.Sucker sucker = Interpreter.SuckerMLInterpreter.Eval(ast);
List <StatistTotalByDateTime> statistTotalByDateTimes = new List <StatistTotalByDateTime>();
foreach (var year in sucker.Years)
{
foreach (var month in year.Value.Months)
{
foreach (var day in month.Value.Days)
{
statistTotalByDateTimes.Add(new StatistTotalByDateTime()
{
DateTime = new DateTime(
year: year.Value.Year.BigIntegerToInt32(),
month: month.Value.Month,
day: day.Value.Day
),
Total = day.Value.Total
});
}
}
}
return(new StatistTotalByDateTimeModel(statistTotalByDateTimes));
}
else
{
throw new FilePickFaildException($"错误的文件类型：{_file.FileType}");
}
}
/// <summary>
/// 给相应的 Rectangle 标记上日期和星期数
/// </summary>
/// <param name="canvas"></param>
private static void DateTag(Canvas canvas)
{
/*
* 下面的查询语句用来提取画布中最左侧的一列方块(res1)和最上侧的一行方块(res2)，
* 然后将这些方块标记上星期数和月份
*/
IEnumerable <IGrouping <double, UIElement> > leftGroup = from rect in canvas.Children
group rect by Canvas.GetLeft(rect);
IEnumerable <IGrouping <double, UIElement> > topGroup = from rect in canvas.Children
group rect by Canvas.GetTop(rect);
double minLeftGroupKey = leftGroup.Min(group => group.Key);
double minTopGroupKey = topGroup.Min(group => group.Key);
IGrouping <double, UIElement> res1 = (from g in leftGroup
where g.Key == minLeftGroupKey
select g).First();
IGrouping <double, UIElement> res2 = (from g in topGroup
where g.Key == minTopGroupKey
select g).First();
/*
* 给周一、周三、周五的方块打上标记 Mon、Wed、Fri
*/
foreach (Rectangle rect in res1)
{
if (DatetimeParser.ParseExpressToDateTime((rect as Rectangle).Name, DateMode.DateWithSlash).DayOfWeek == DayOfWeek.Monday ||
DatetimeParser.ParseExpressToDateTime((rect as Rectangle).Name, DateMode.DateWithSlash).DayOfWeek == DayOfWeek.Wednesday ||
DatetimeParser.ParseExpressToDateTime((rect as Rectangle).Name, DateMode.DateWithSlash).DayOfWeek == DayOfWeek.Friday)
{
var tbx = new TextBlock()
{
Text = DatetimeParser.ParseExpressToDateTime((rect as Rectangle).Name, DateMode.DateWithSlash).DayOfWeek.ToString().Substring(0, 3),
FontSize = 10,
Foreground = new SolidColorBrush(Windows.UI.Colors.Gray)
};
Canvas.SetLeft(tbx, Canvas.GetLeft(rect) - 30);
Canvas.SetTop(tbx, Canvas.GetTop(rect));
canvas.Children.Add(tbx);
}
}
/*
* 给每个月份开头的方块打上标记，从 Jan 到 Dec
*/
Rectangle previousRect = null;
// 每个标记创建完成后会同对应的方块一起写入该列表
List <(TextBlock Tag, Rectangle TagedRect)> tagList = new List <(TextBlock Tag, Rectangle TagedRect)>();
foreach (Rectangle rect in res2.Reverse())
{
void setTopTag(string text)
{
var tag = new TextBlock()
{
Text = text,
FontSize = 10,
Foreground = new SolidColorBrush(Windows.UI.Colors.Gray)
};
Canvas.SetLeft(tag, Canvas.GetLeft(rect));
Canvas.SetTop(tag, Canvas.GetTop(rect) - 15);
tagList.Add((tag, rect));
/*
* 采用下面的设计是因为 TextBlock.ActualWidth 只有在控件加载完成后（Loaded）才会产生有效值，
* TextBlock.ActualWidth 是检测两个 tag 是否重叠的关键参数，检测公式为：
* Canvas.GetLeft(tagList[i].Tag) - Canvas.GetLeft(tagList[i - 1].Tag) - tagList[i - 1].Tag.ActualWidth <= 0
* 当该表达式为 true，表明 tagList 中某两个相邻的 tag 发生重叠，需要将右边的 tag 往右移动一个方块的距离避免重叠。
* 当 today 为一年中的某些天时，RectanglesCanvas 的第一列和第二列会是两个相邻的月份，如此紧凑的距离会导致他们顶部
* 的标记重叠，一个例子是 today 为 10/12/2019，当输入的纪录中含有 2017 年的记录时，那么渲染 2017 年对应的 RectanglesCanvas
* 会导致该 Canvas 的第一列和第二列的顶部标记重叠。
*
* tag.Loaded 事件函数的作用是对 tagList 中的 tag 进行距离检测，当所有的 tag 在 setTopTag 函数中
* 创建完毕后，UI 开始加载 Canvas 中的 UIElement，这个过程会触发每个 tag 的 Loaded 事件，通过 Loaded
* 事件对每个 tag 的距离进行轮询。
*/
tag.Loaded += (object sender, RoutedEventArgs e) => {
for (int i = 1; i < tagList.Count - 1; i++)
{
if (Canvas.GetLeft(tagList[i].Tag) - Canvas.GetLeft(tagList[i - 1].Tag) - tagList[i - 1].Tag.ActualWidth <= 0)
{
Debug.WriteLine($"Canvas.GetLeft(list[{i}].Tag) - Canvas.GetLeft(list[{i - 1}].Tag) - list[{i - 1}].Tag.ActualWidth = {Canvas.GetLeft(tagList[i].Tag)} - {Canvas.GetLeft(tagList[i - 1].Tag)} - {tagList[i - 1].Tag.ActualWidth} = {Canvas.GetLeft(tagList[i].Tag) - Canvas.GetLeft(tagList[i - 1].Tag) - tagList[i - 1].Tag.ActualWidth}");
Canvas.SetLeft(tagList[i].Tag, Canvas.GetLeft(tagList[i].Tag) + tagList[i].TagedRect.Width);
}
}
};
canvas.Children.Add(tag);
}
if (previousRect == null)
{
setTopTag(DatetimeParser.NumberToMonth(DatetimeParser.ParseExpressToDateTime(rect.Name, DateMode.DateWithSlash).Month));
}
else
{
int monthOfPreviousRectangle = DatetimeParser.ParseExpressToDateTime(previousRect.Name, DateMode.DateWithSlash).Month;
int monthOfCurrentRectangle = DatetimeParser.ParseExpressToDateTime(rect.Name, DateMode.DateWithSlash).Month;
if (monthOfCurrentRectangle != monthOfPreviousRectangle)
{
setTopTag(DatetimeParser.NumberToMonth(DatetimeParser.ParseExpressToDateTime(rect.Name, DateMode.DateWithSlash).Month));
}
}
previousRect = rect;
}
}
/// <summary>
/// 添加一个条目
/// </summary>
/// <param name="rectName">接收一个字符串表达式，格式为“mm dd yyyy x{Total}”或“mm/dd/yyyy”</param>
public void AddEntry(string rectName)
{
this.AddEntry(DatetimeParser.ParseExpressToStatistTotalByDateTime(rectName, DateMode.DateWithSlash));
}
