public static void SetTxtPreviewSingleColor(MyRichTextBox txtPreview, Color color)
{
txtPreview.lockTextChange = true;
int cursorLocation = txtPreview.SelectionStart; // 保存编辑位置
int selectLength = txtPreview.SelectionLength; // 保存处理字符串的长度
txtPreview.SelectionColor = color; // 设置颜色
txtPreview.SelectionStart = cursorLocation + selectLength; // 移动光标
txtPreview.SelectionLength = 0; // 清空选择
txtPreview.lockTextChange = false;
txtPreview.Select(); // 激活控件
}
public static void SetTxtPreviewGradual(MyRichTextBox txtPreview, Color startColor, Color endColor)
{
int selectLength = txtPreview.SelectionLength;// 需要处理的长度
if (selectLength > 1)
{
txtPreview.lockTextChange = true;
for (int i = 0; i < selectLength; i++)
{
txtPreview.SelectionLength = 1;
Color tempColor = Color.FromArgb(startColor.R + (endColor.R - startColor.R) * i / (selectLength - 1), startColor.G + (endColor.G - startColor.G) * i / (selectLength - 1), startColor.B + (endColor.B - startColor.B) * i / (selectLength - 1));// 计算当前字的颜色
txtPreview.SelectionColor = tempColor;
txtPreview.SelectionLength = 0;
txtPreview.SelectionStart++;
}
txtPreview.lockTextChange = false;
txtPreview.Select();// 激活控件
}
else
{
SetTxtPreviewSingleColor(txtPreview, startColor);
}
}
public static void SetTxtPreviewSingleColor(MyRichTextBox txtPreview, Color color)
{
txtPreview.lockTextChange = true;
int cursorLocation = txtPreview.SelectionStart;// 保存编辑位置
int selectLength = txtPreview.SelectionLength;// 保存处理字符串的长度
txtPreview.SelectionColor = color;// 设置颜色
txtPreview.SelectionStart = cursorLocation + selectLength;// 移动光标
txtPreview.SelectionLength = 0;// 清空选择
txtPreview.lockTextChange = false;
txtPreview.Select();// 激活控件
}
public static void SetTxtPreviewGradual(MyRichTextBox txtPreview, Color startColor, Color endColor)
{
int selectLength = txtPreview.SelectionLength;// 需要处理的长度
if (selectLength > 1)
{
txtPreview.lockTextChange = true;
for (int i = 0; i < selectLength; i++)
{
txtPreview.SelectionLength = 1;
Color tempColor = Color.FromArgb(startColor.R + (endColor.R - startColor.R) * i / (selectLength - 1), startColor.G + (endColor.G - startColor.G) * i / (selectLength - 1), startColor.B + (endColor.B - startColor.B) * i / (selectLength - 1));// 计算当前字的颜色
txtPreview.SelectionColor = tempColor;
txtPreview.SelectionLength = 0;
txtPreview.SelectionStart++;
}
txtPreview.lockTextChange = false;
txtPreview.Select();// 激活控件
}
else
{
SetTxtPreviewSingleColor(txtPreview, startColor);
}
}