/// <summary>
/// 创建一个动画字符。每个字符具有的字体，字体样式，以及动画都有可能不同。
/// </summary>
/// <param name="index"></param>
/// <param name="character"></param>
/// <param name="g"></param>
/// <returns></returns>
public static AnimationChar CreatAnimationChar(int index, string character, Graphics g)
{
AnimationChar animChar = new AnimationChar(character);
animChar.Font = GetFontByIndex(index);
animChar.Size = g.MeasureString(character, animChar.Font, new Point(0, 0), StringFormat.GenericTypographic);
return(animChar);
}
private void CreateAnimation(SlideInAnimation.SlieInDirection direction, AnimationChar animChar, float finalPosX)
{
//计算与字体相关的参数
int ascent = animChar.Font.FontFamily.GetCellAscent(animChar.Font.Style);
int descent = animChar.Font.FontFamily.GetCellDescent(animChar.Font.Style);
int emHeight = animChar.Font.FontFamily.GetEmHeight(animChar.Font.Style);
float ascentF = ascent * animChar.Font.Size / emHeight;
float descentF = descent * animChar.Font.Size / emHeight;
//计算绘制文字的开始位置
float height = ascentF + descentF;
float locY = (AnimationConfig.Height - height) / 2;
switch (direction)
{
case SlieInDirection.RIGHT:
animChar.SetLocation(AnimationConfig.Width, locY);
animChar.CalcPath(); //计算字体的路径
animChar.Animation = AnimationUtil.CreatePostionAnimation(AnimationConfig.Width, finalPosX, locY, locY);
break;
case SlieInDirection.LEFT:
int width = Convert.ToInt32(animChar.Size.Width);
animChar.SetLocation(-width, locY);
animChar.CalcPath();
animChar.Animation = AnimationUtil.CreatePostionAnimation(-width, finalPosX, locY, locY);
break;
case SlieInDirection.BOTTOM:
animChar.SetLocation(finalPosX, AnimationConfig.Height);
animChar.CalcPath();
animChar.Animation = AnimationUtil.CreatePostionAnimation(finalPosX, finalPosX, AnimationConfig.Height, locY);
break;
case SlieInDirection.TOP:
animChar.SetLocation(finalPosX, -height);
animChar.CalcPath();
animChar.Animation = AnimationUtil.CreatePostionAnimation(finalPosX, finalPosX, -height, locY);
break;
case SlieInDirection.VERBATIM:
animChar.SetLocation(finalPosX, AnimationConfig.Height);
animChar.CalcPath();
animChar.Animation = AnimationUtil.CreateTranslateAnimation(finalPosX, finalPosX, AnimationConfig.Height, locY);
break;
default: //SlieInDirection.RIGHT
animChar.SetLocation(AnimationConfig.Width, locY);
animChar.CalcPath(); //计算字体的路径
animChar.Animation = AnimationUtil.CreatePostionAnimation(AnimationConfig.Width, finalPosX, locY, locY);
break;
}
}
/// <summary>
/// 文字由向左进入动画
/// </summary>
/// <param name="animChar"></param>
public static void CreateRightInAnimation(AnimationChar animChar, float toX)
{
//计算与字体相关的参数
int ascent = animChar.Font.FontFamily.GetCellAscent(animChar.Font.Style);
int descent = animChar.Font.FontFamily.GetCellDescent(animChar.Font.Style);
int emHeight = animChar.Font.FontFamily.GetEmHeight(animChar.Font.Style);
float ascentF = ascent * animChar.Font.Size / emHeight;
float descentF = descent * animChar.Font.Size / emHeight;
//计算绘制文字的开始位置
float locY = (AnimationConfig.Height - (ascentF + descentF)) / 2;
animChar.SetLocation(AnimationConfig.Width, locY);
animChar.CalcPath();//计算字体的路径
animChar.Animation = CreatePostionAnimation(AnimationConfig.Width, toX, locY, locY);
}
public void CreateSlideInAnimation(List <LinkedList <AnimationChar> > screens, SlieInDirection direction)
{
screens.Clear();
LinkedList <AnimationChar> linkedChars = new LinkedList <AnimationChar>();//一屏中显示的字符
string text = AnimationConfig.Text;
int textSize = text.Length;
int length = 0; //字符显示的长度
int charWidth = 0; //单个字符的宽度
if (direction == SlieInDirection.LEFT)
{
length = AnimationConfig.Width;
for (int i = textSize - 1; i >= 0; i--)
{
string character = text.Substring(i, 1);
AnimationChar animChar = AnimationUtil.CreatAnimationChar(i, character, g);
charWidth = Convert.ToInt32(animChar.Size.Width);
if ((length - charWidth) < 0) //需要分屏
{
length = AnimationConfig.Width;
if (linkedChars.Count > 0)
{
screens.Add(linkedChars);
linkedChars = new LinkedList <AnimationChar>();//创建新的列表
}
}
CreateAnimation(direction, animChar, length - charWidth);
length -= (charWidth + AnimationConfig.Space);
LinkedListNode <AnimationChar> node = new LinkedListNode <AnimationChar>(animChar);
linkedChars.AddLast(node);
}
}
else
{
for (int i = 0; i < textSize; i++)
{
string character = text.Substring(i, 1);
AnimationChar animChar = AnimationUtil.CreatAnimationChar(i, character, g);
charWidth = Convert.ToInt32(animChar.Size.Width);
if (length + charWidth > AnimationConfig.Width) //需要分屏
{
length = 0;
if (linkedChars.Count > 0)
{
screens.Add(linkedChars);
linkedChars = new LinkedList <AnimationChar>();//创建新的列表
}
}
CreateAnimation(direction, animChar, length);
length += (charWidth + AnimationConfig.Space);
LinkedListNode <AnimationChar> node = new LinkedListNode <AnimationChar>(animChar);
linkedChars.AddLast(node);
}
}
if (linkedChars.Count > 0)
{
screens.Add(linkedChars);
}
}
