C# , GDI+ 能不能画出，一个段落内，含有多种字体呢?
如题 --------------------编程问答-------------------- 要是自己画，应该是随心所欲啊！ --------------------编程问答-------------------- 不太好办，画了第一段文字，很难计算出，第二段文字的开始位置。并且，英文单词还要换行问题，复杂啊 --------------------编程问答-------------------- --------------------编程问答--------------------
--------------------编程问答--------------------
//投影文字
Graphics g = this.CreateGraphics();
//设置文本输出质量
g.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
g.SmoothingMode = SmoothingMode.AntiAlias;
Font newFont = new Font("Times New Roman", 48);
Matrix matrix = new Matrix();
//投射
matrix.Shear(-1.5f, 0.0f);
//缩放
matrix.Scale(1, 0.5f);
//平移
matrix.Translate(130, 88);
//对绘图平面实施坐标变换、、
g.Transform = matrix;
SolidBrush grayBrush = new SolidBrush(Color.Gray);
SolidBrush colorBrush = new SolidBrush(Color.BlueViolet);
//绘制阴影
g.DrawString(text, newFont, grayBrush, new PointF(0, 30));
g.ResetTransform();
//绘制前景
g.DrawString(text, newFont, colorBrush, new PointF(0, 30)); ;
//浮雕文字
Brush backBrush = Brushes.Black;
Brush foreBrush = Brushes.White;
Font font = new Font("宋体", Convert.ToInt16(40), FontStyle.Regular);
g = this.CreateGraphics();
SizeF size = g.MeasureString(text, font);
Single posX = (this.Width - Convert.ToInt16(size.Width)) / 2;
Single posY = (this.Height - Convert.ToInt16(size.Height)) / 2;
g.DrawString(text, font, backBrush, posX + 1, posY + 1);
g.DrawString(text, font, foreBrush, posX, posY);
int i = 0;
backBrush = Brushes.Black;
foreBrush = Brushes.Violet;
font = new Font("Times New Roman", System.Convert.ToInt16(40), FontStyle.Regular);
g = this.CreateGraphics();
g.Clear(Color.White);
size = g.MeasureString(text, font);
posX = (this.Width - Convert.ToInt16(size.Width)) / 2;
posY = (this.Height - Convert.ToInt16(size.Height)) / 3;
while (i < Convert.ToInt16(20))
{
g.DrawString(text, font, backBrush, posX - i, posY + i);
i = i + 1;
}
g.DrawString(text, font, foreBrush, posX, posY);
//倒影文字
backBrush = Brushes.Gray;
foreBrush = Brushes.Black;
font = new Font("幼圆", Convert.ToInt16(40), FontStyle.Regular);
g = this.CreateGraphics();
size = g.MeasureString(text, font);
posX = (this.Width - Convert.ToInt16(size.Width)) / 2;
posY = (this.Height - Convert.ToInt16(size.Height)) / 2;
g.TranslateTransform(posX, posY);
int ascent = font.FontFamily.GetCellAscent(font.Style);
int spacing = font.FontFamily.GetLineSpacing(font.Style);
int lineHeight = System.Convert.ToInt16(font.GetHeight(g));
int height = lineHeight * ascent / spacing;
GraphicsState state = g.Save();
g.ScaleTransform(1, -1.0F);
g.DrawString(text, font, backBrush, 0, -height);
g.Restore(state);
g.DrawString(text, font, foreBrush, 0, -height);
都不是我需要的，我要的是这种效果。
一个段落内，含有多种字体 --------------------编程问答-------------------- 可以,不过速度会很慢,因为需要不断地计算测量不同文字样式时的尺寸,还要不断地计算折行....建议直接使用RichTextBox或者Webbrowser --------------------编程问答-------------------- 可是，我这个是画图用的。
画图过程中需要画文字，段落。 --------------------编程问答-------------------- 编辑文字时在Richtextbox内编辑,失去焦点时直接RichTextBox1.DrawToBitmap,当然最好是先maketransparent.相当于把RICHTEXTBOX挖空再画到底图上. --------------------编程问答-------------------- C#里，找不到RichTextBox1.DrawToBitmap --------------------编程问答-------------------- 找不到可以手工写 --------------------编程问答-------------------- 字体被定义成了一个个的像素点，字体的确切大小取决于显示器的大小
MeasureString 和MeasureCharacterRanges
字体样式
改变字体
Font f=new Font("Verdana", 8F, FontStyle.Italic, GraphicsUnit.Point);
string str="";
if (richTextBox1.Find(str)>0)
{
int pos=richTextBox1.Find(str);
richTextBox1.SelectionStart=pos;
richTextBox1.SelectionLength=str.Length;
richTextBox1.SelectionFont=f;
richTextBox1.SelectionColor=Color.Red;
}
http://www.codeproject.com/KB/static/BorderLabel.aspx --------------------编程问答-------------------- public int PrintToImage(int charFrom, int charTo, Rectangle border, Rectangle pageSize, Graphics g)
这个方法，总是从Graphics的左上方x,y 都为0开始画。
找不到控制X，Y坐标的参数。
public int PrintToImage(int charFrom, int charTo, Rectangle border, Rectangle pageSize, Graphics g, int x,int y)
{
//Calculate the area to render and print
RECT rectToPrint;
rectToPrint.Top = (int)(pageSize.Top * anInch);
rectToPrint.Bottom = (int)(pageSize.Bottom * anInch);
rectToPrint.Left = (int)(pageSize.Left * anInch);
rectToPrint.Right = (int)(pageSize.Right * anInch);
//Calculate the size of the page
RECT rectPage;
rectPage.Top = (int)(pageSize.Top * anInch);
rectPage.Bottom = (int)(pageSize.Bottom * anInch);
rectPage.Left = (int)(pageSize.Left * anInch);
rectPage.Right = (int)(pageSize.Right * anInch);
IntPtr hdc = g.GetHdc();
FORMATRANGE fmtRange;
fmtRange.chrg.cpMax = charTo; //Indicate character from to character to
fmtRange.chrg.cpMin = charFrom;
fmtRange.hdc = hdc; //Use the same DC for measuring and rendering
fmtRange.hdcTarget = hdc; //Point at printer hDC
fmtRange.rc = rectToPrint; //Indicate the area on page to print
fmtRange.rcPage = rectPage; //Indicate size of page
IntPtr res = IntPtr.Zero;
IntPtr wparam = IntPtr.Zero;
wparam = new IntPtr(1);
//Get the pointer to the FORMATRANGE structure in memory
IntPtr lparam = IntPtr.Zero;
lparam = Marshal.AllocCoTaskMem(Marshal.SizeOf(fmtRange));
Marshal.StructureToPtr(fmtRange, lparam, false);
//Send the rendered data for printing
res = SendMessage(Handle, EM_FORMATRANGE, wparam, lparam);
//Free the block of memory allocated
Marshal.FreeCoTaskMem(lparam);
//Release the device context handle obtained by a previous call
g.ReleaseHdc(hdc);
//Return last + 1 character printer
return res.ToInt32();
}
--------------------编程问答-------------------- 当然了。。。 --------------------编程问答-------------------- 那怎样控制RichTextBox的内容，出现在Graphics上的位置呢
它总是x,y为0
补充：.NET技术 , C#
