private void deleteButton_Click(object sender, EventArgs e)
{
int[,] daysInPanel = GetDaysInPanel();
if (daysInPanel[clickInRow, clickInColoum] != 0)
{
currentTextEditingDate = new DateTime(
currentSelectedDate.Year, currentSelectedDate.Month, daysInPanel[clickInRow, clickInColoum]);
// 删除哈希表中的数据
if (NotepadHashtable.Exists(currentTextEditingDate))
{
NotepadHashtable.RemoveText(currentTextEditingDate);
noteTextBox.Text = "";
updataButton.Visible = false;
deleteButton.Visible = false;
noteTextBox.Visible = false;
noteLabel.Visible = true;
MessageBox.Show("删除成功");
}
else
{
MessageBox.Show("删除失败");
}
}
}
private void updataButton_Click(object sender, EventArgs e)
{
int[,] daysInPanel = GetDaysInPanel();
if (daysInPanel[clickInRow, clickInColoum] != 0)
{
currentTextEditingDate = new DateTime(
currentSelectedDate.Year, currentSelectedDate.Month, daysInPanel[clickInRow, clickInColoum]);
// 更新数据
if (NotepadHashtable.Exists(currentTextEditingDate) && noteTextBox.Text.TrimEnd() != "")
{
NotepadHashtable.UpdateText(currentTextEditingDate, noteTextBox.Text);
MessageBox.Show("更新成功");
}
else
{
MessageBox.Show("更新失败");
}
}
}
public static void Initialize()
{
// 事件布线
NotepadHashtable.DataHashtableUpdated += new MyEventHandler(DataHashtableUpdatedHandler);
// 判断数据文件是否存在
if (System.IO.File.Exists(applicationDataPath))
{
// 读入数据
FileStream fs = new FileStream(applicationDataPath, FileMode.Open);
BinaryReader br = new BinaryReader(fs);
DateTime key = new DateTime();
string text;
while (true)
{
try
{
key = DateTime.Parse(br.ReadString());
text = br.ReadString();
NotepadHashtable.AddTextWithoutStoringToDisk(key, text);
}
catch (EndOfStreamException)
{
break;
}
}
br.Close();
}
else
{
// 创建磁盘文件
System.IO.File.Create(applicationDataPath);
}
isInitialized = true;
}
private void calendarContentPanel_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
Pen frameworkPen = new Pen(Color.FromArgb(176, 175, 175), 2);
// 列*7
float currentSeparateWidth;
for (int i = 0; i < 6; i++)
{
currentSeparateWidth = (float)calendarContentPanel.Width / 7 * (i + 1);
g.DrawLine(frameworkPen,
new PointF(currentSeparateWidth, 0),
new PointF(currentSeparateWidth, (float)calendarContentPanel.Height));
}
//行*6
float currentSeparateHeight;
for (int i = 0; i < 5; i++)
{
currentSeparateHeight = (float)calendarContentPanel.Height / 6 * (i + 1);
g.DrawLine(frameworkPen,
new PointF(0, currentSeparateHeight),
new PointF((float)calendarContentPanel.Width, currentSeparateHeight));
}
// 加深今天的背景颜色
// 仅当当前显示本月时绘制
DateTime today = DateTime.Today;
if (currentSelectedDate.Year == today.Year && currentSelectedDate.Month == today.Month)
{
int todayRow;
int todayColumn;
// 得到今天在日历中的位置
GetDayPositionInCalendarContentPanel(out todayRow, out todayColumn, DateTime.Today);
SolidBrush todayBackgroundBrush = new SolidBrush(Color.FromArgb(50, 50, 50));
RectangleF todayRect = new RectangleF(
todayColumn * ((float)calendarContentPanel.Width / 7) + 1,
todayRow * ((float)calendarContentPanel.Height / 6) + 1,
(float)calendarContentPanel.Width / 7 - 2,
(float)calendarContentPanel.Height / 6 - 2);
g.FillRectangle(todayBackgroundBrush, todayRect);
}
//加深被选择的日期
int selectedRow;
int selectedColumn;
GetDayPositionInCalendarContentPanel(out selectedRow, out selectedColumn);
SolidBrush selectedBackgroundBrush = new SolidBrush(Color.FromArgb(50, 100, 100));
RectangleF selectedRect = new RectangleF(
selectedColumn * ((float)calendarContentPanel.Width / 7) + 1,
selectedRow * ((float)calendarContentPanel.Height / 6) + 1,
(float)calendarContentPanel.Width / 7 - 2,
(float)calendarContentPanel.Height / 6 - 2);
g.FillRectangle(selectedBackgroundBrush, selectedRect);
// 绘制日期数字
// 该月的天数
int daysOfMonth = DateTime.DaysInMonth(currentSelectedDate.Year, currentSelectedDate.Month);
PointF[] numberPositions = new PointF[daysOfMonth];
// 绘制时，日历表格中的当前行数
int rowOfNumbers = 0;
// 表示当前行的数字数量
int numbersInCurrentRow = 0;
// 表示后5行的第一个索引数（day-1），仅需用到后五个元素，首元素恒为0
int[] firstIndexsInRows = new int[6];
// 为每个数字增加的横向宽度
const float fixedNumberDistanceX = 15;
// 为每个数字增加的竖向高度
const float fixedNumberDistanceY = 5;
// 为单个数字（0~9）增加的横向宽度
const float fixedNumberAdditionalCrosswiseDistanceForSingleFigure = 5;
//字体
Font numberFont = new Font("微软雅黑", 15);
//普通日期画笔
SolidBrush numberNormalBrush = new SolidBrush(Color.FromArgb(252, 252, 252));
//节假日画笔
SolidBrush numberHolidayBrush = new SolidBrush(Color.FromArgb(238, 119, 0));
// 该月第一天星期几（0~6）
int weekOfMonthFirstDay = (int)DateTime.Parse(
currentSelectedDate.Year.ToString() + "/" + currentSelectedDate.Month.ToString() + "/1"
).DayOfWeek;
// 根据本月的第一天是星期几来绘制第一个数字
firstIndexsInRows[0] = numbersInCurrentRow = weekOfMonthFirstDay;
for (int i = 0; i < daysOfMonth; i++)
{
if (numbersInCurrentRow >= 7) // 如果该行元素数量超过7个，则换行绘制
{
rowOfNumbers++;
numbersInCurrentRow = 0;
firstIndexsInRows[rowOfNumbers] = i;
}
numberPositions[i].X = numbersInCurrentRow * ((float)calendarContentPanel.Width / 7) + fixedNumberDistanceX;
numberPositions[i].Y = rowOfNumbers * ((float)calendarContentPanel.Height / 6) + fixedNumberDistanceY;
if (i < 9) // 为单个数字（0~9）增加横向宽度
{
numberPositions[i].X += fixedNumberAdditionalCrosswiseDistanceForSingleFigure;
}
// 判断是否为节假日并用不同画刷绘制
int weekOfCurrentDate = (int)DateTime.Parse(
currentSelectedDate.Year.ToString() + "/" + currentSelectedDate.Month.ToString() + "/" + (i + 1).ToString()
).DayOfWeek;
if (weekOfCurrentDate == 0 || weekOfCurrentDate == 6)
{
g.DrawString((i + 1).ToString(), numberFont, numberHolidayBrush, numberPositions[i]);
}
else
{
g.DrawString((i + 1).ToString(), numberFont, numberNormalBrush, numberPositions[i]);
}
// 增加本行的数字数量
numbersInCurrentRow++;
}
// 在已有记事本数据的日期右上角绘制提示标记
DateTime currentLoopDate = new DateTime(currentSelectedDate.Year, currentSelectedDate.Month, 1);
int[,] daysInPanel = GetDaysInPanel();
for (int i = 0; i < daysOfMonth; i++)
{
currentLoopDate = currentLoopDate.AddDays(1);
if (NotepadHashtable.Exists(currentLoopDate))
{
for (int j = 0; j < 6; j++)
{
for (int k = 0; k < 7; k++)
{
if (daysInPanel[j, k] == currentLoopDate.Day)
{
// 绘制三角形
PointF[] topRightTrianglePoints =
{
new Point(40, 0),
new Point(62, 0),
new Point(62, 20)
};
for (int m = 0; m < 3; m++)
{
topRightTrianglePoints[m].X += (float)calendarContentPanel.ClientRectangle.Width / 7 * k;
topRightTrianglePoints[m].Y += (float)calendarContentPanel.ClientRectangle.Height / 6 * j;
}
SolidBrush topRightMemoryTriangleBrush = new SolidBrush(Color.FromArgb(255, 189, 140)); // 255, 255, 140
g.FillPolygon(topRightMemoryTriangleBrush, topRightTrianglePoints);
}
}
}
}
}
// 如果鼠标在日历画板上停留，绘制加号和三角形背景
if (drawPlusInRow != -1 && drawPlusInColoum != -1)
{
// 绘制三角形
PointF[] topRightTrianglePoints =
{
new Point(40, 0),
new Point(62, 0),
new Point(62, 20)
};
for (int i = 0; i < 3; i++)
{
topRightTrianglePoints[i].X += (float)calendarContentPanel.ClientRectangle.Width / 7 * drawPlusInColoum;
topRightTrianglePoints[i].Y += (float)calendarContentPanel.ClientRectangle.Height / 6 * drawPlusInRow;
}
SolidBrush topRightMouseMovingBrush = new SolidBrush(Color.FromArgb(255, 189, 140));
g.FillPolygon(topRightMouseMovingBrush, topRightTrianglePoints);
// 绘制加号
const float fixedPlusCrosswiseDistance = 50;
const float fixedPlusLengthwaysDistance = 1;
const float fixedPlusWidth = 8;
const float fixedPlusHeight = 8;
PointF plusHorizontalStartPoint = new PointF(
(float)calendarContentPanel.ClientRectangle.Width / 7 * drawPlusInColoum + fixedPlusCrosswiseDistance,
(float)calendarContentPanel.ClientRectangle.Height / 6 * drawPlusInRow + fixedPlusLengthwaysDistance + fixedPlusHeight / 2
);
PointF plusHorizontalEndPoint = new PointF(
(float)plusHorizontalStartPoint.X + fixedPlusWidth,
(float)plusHorizontalStartPoint.Y
);
PointF plusVerticalStartPoint = new PointF(
(float)calendarContentPanel.ClientRectangle.Width / 7 * drawPlusInColoum + fixedPlusCrosswiseDistance + fixedPlusWidth / 2,
(float)calendarContentPanel.ClientRectangle.Height / 6 * drawPlusInRow + fixedPlusLengthwaysDistance
);
PointF plusVerticalEndPoint = new PointF(
(float)plusVerticalStartPoint.X,
(float)plusVerticalStartPoint.Y + fixedPlusHeight
);
g.DrawLine(Pens.White, plusHorizontalStartPoint, plusHorizontalEndPoint);
g.DrawLine(Pens.White, plusVerticalStartPoint, plusVerticalEndPoint);
}
}
private void calendarContentPanel_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left)
{
return;
}
// 判断鼠标点击了哪一天
clickInRow = (int)(e.Location.Y / ((float)calendarContentPanel.Height / 6));
clickInColoum = (int)(e.Location.X / ((float)calendarContentPanel.Width / 7));
int[,] daysInPanel = GetDaysInPanel();
// 点击的单元格有元素存在
if (daysInPanel[clickInRow, clickInColoum] != 0)
{
// 重置当前选中的日期
currentSelectedDate = new DateTime(currentSelectedDate.Year, currentSelectedDate.Month, daysInPanel[clickInRow, clickInColoum]);
OnCurrentSelectedDateChanged();
}
// 判断鼠标是否点击了日期框右上角的加号（三角形）
PointF[] topRightTrianglePoints =
{
new Point(40, 0),
new Point(62, 0),
new Point(62, 20)
};
for (int i = 0; i < 3; i++)
{
topRightTrianglePoints[i].X += (float)calendarContentPanel.ClientRectangle.Width / 7 * drawPlusInColoum;
topRightTrianglePoints[i].Y += (float)calendarContentPanel.ClientRectangle.Height / 6 * drawPlusInRow;
}
GraphicsPath topRightTrianglePath = new GraphicsPath();
topRightTrianglePath.AddPolygon(topRightTrianglePoints);
Region topRightTriangleRegion = new Region(topRightTrianglePath);
// 取得当前在编辑的文本所对应日历中的日期格子
currentTextEditingDate = new DateTime(
currentSelectedDate.Year, currentSelectedDate.Month, daysInPanel[drawPlusInRow, drawPlusInColoum]);
// 点击了加号,并且文本没有数据
if (topRightTriangleRegion.IsVisible(e.Location) && noteTextBox.Text.TrimEnd() == "")
{
updataButton.Visible = true;
deleteButton.Visible = true;
noteTextBox.Visible = true;
noteLabel.Visible = false;
// 文本框取得焦点
noteTextBox.Focus();
}
// 点击了加号,文本有数据,表示添加文本
else if (topRightTriangleRegion.IsVisible(e.Location) && noteTextBox.Text.TrimEnd() != "")
{
if (!NotepadHashtable.Exists(currentTextEditingDate))
{
NotepadHashtable.AddText(currentTextEditingDate, noteTextBox.Text);
MessageBox.Show("添加成功");
}
else
{
NotepadHashtable.UpdateText(currentTextEditingDate, noteTextBox.Text);
MessageBox.Show("已添加");
}
}
// 检查NotepadHashtable类中当前日期是否有数据，如有则显示
else if (NotepadHashtable.Exists(currentTextEditingDate))
{
noteTextBox.Text = NotepadHashtable.GetText(currentTextEditingDate);
updataButton.Visible = true;
deleteButton.Visible = true;
noteTextBox.Visible = true;
noteLabel.Visible = false;
// 文本框取得焦点
noteTextBox.Focus();
}
else
{
updataButton.Visible = false;
deleteButton.Visible = false;
noteTextBox.Visible = false;
noteLabel.Visible = true;
noteTextBox.Text = "";
this.Focus();
}
// 重绘
noteTextBox.Invalidate();
}