/// <summary>
/// 计算所需高（暂不考虑英文的word wrapper）
/// </summary>
/// <param name="width">目标宽度</param>
/// <param name="pagePadding">页边距</param>
/// <param name="lineDistance">行距</param>
/// <param name="font">字体</param>
/// <returns>分行完毕的文本</returns>
private List<string> CalculateHeight(int width, int pagePadding, int lineDistance, PixelFont font, string text)
{
List<string> result = new List<string>();
int availableWidth = width - pagePadding * 2;//除去页边距之后的可用宽度
List<char> line = new List<char>();
string[] lines = text.Split(new string[] {"\r\n" }, StringSplitOptions.None);
int length = 0;
foreach (var l in lines)
{
line.Clear();
length = 0;
foreach (var c in l)
{
int len = font.MeasureCharDrawingLength(c);
if (len + length > availableWidth)
{
result.Add(new string(line.ToArray()));
line.Clear();
line.Add(c);
length = len;
}
else
{
length += len;
line.Add(c);
}
}
result.Add(new string(line.ToArray()));
}
return result;
}
private Bitmap DrawImage(int width, int height, int pagePadding, int lineDistance, int fontSize)
{
int halfFontSize = fontSize / 2;
string unicodeFontFileName = "songti-" + fontSize + "x" + fontSize + ".bin";
string asciiFontFileName = "terminus-ascii-" + halfFontSize + "x" + fontSize + "-95chars.bmp";
PixelFont font = new PixelFont(Application.StartupPath + "\\Resource\\" + unicodeFontFileName, Application.StartupPath + "\\Resource\\" + asciiFontFileName, Color.Black);
List <string> lines = CalculateHeight(width, pagePadding, lineDistance, font, textBoxInputText.Text);
Bitmap target = new Bitmap(width, lines.Count * lineDistance + 2 * pagePadding);
Graphics g = Graphics.FromImage(target);
g.Clear(Color.White);
SolidBrush b = new SolidBrush(Color.Black);
for (int i = 0; i < lines.Count; i++)
{
font.DrawString(g, b, lines[i], pagePadding, pagePadding + i * lineDistance);
}
g.Dispose();
return(target);
}
/// <summary>
/// 计算所需高（暂不考虑英文的word wrapper）
/// </summary>
/// <param name="width">目标宽度</param>
/// <param name="pagePadding">页边距</param>
/// <param name="lineDistance">行距</param>
/// <param name="font">字体</param>
/// <returns>分行完毕的文本</returns>
private List <string> CalculateHeight(int width, int pagePadding, int lineDistance, PixelFont font, string text)
{
List <string> result = new List <string>();
int availableWidth = width - pagePadding * 2;//除去页边距之后的可用宽度
List <char> line = new List <char>();
string[] lines = text.Split(new string[] { "\r\n" }, StringSplitOptions.None);
int length = 0;
foreach (var l in lines)
{
line.Clear();
length = 0;
foreach (var c in l)
{
int len = font.MeasureCharDrawingLength(c);
if (len + length > availableWidth)
{
result.Add(new string(line.ToArray()));
line.Clear();
line.Add(c);
length = len;
}
else
{
length += len;
line.Add(c);
}
}
result.Add(new string(line.ToArray()));
}
return(result);
}
private Bitmap DrawImage(int width, int height, int pagePadding, int lineDistance, int fontSize)
{
int halfFontSize = fontSize / 2;
string unicodeFontFileName = "songti-" + fontSize + "x" + fontSize + ".bin";
string asciiFontFileName = "terminus-ascii-" + halfFontSize + "x" + fontSize + "-95chars.bmp";
PixelFont font = new PixelFont(Application.StartupPath + "\\Resource\\" + unicodeFontFileName, Application.StartupPath + "\\Resource\\" + asciiFontFileName, Color.Black);
List<string> lines = CalculateHeight(width, pagePadding, lineDistance, font, textBoxInputText.Text);
Bitmap target = new Bitmap(width, lines.Count * lineDistance + 2 * pagePadding);
Graphics g = Graphics.FromImage(target);
g.Clear(Color.White);
SolidBrush b = new SolidBrush(Color.Black);
for(int i = 0; i < lines.Count;i ++)
{
font.DrawString(g, b, lines[i], pagePadding, pagePadding + i * lineDistance);
}
g.Dispose();
return target;
}
