2014-07-03 56 views
1

我在Java中有一定的code,我試圖找到C#。 '我的問題到目前爲止是'方法油漆(圖形g)'。相當新的編程和仍然學習,我有點不知道如何正確地「轉換」此方法到C#。我的代碼現在看起來像thisC#的特定Java代碼

而且,這裏的Java方法不休息之類的:

public void paint(Graphics g) { 
     if (g == null) 
      throw new NullPointerException(); 

     if (offscreenBuffer == null){ 
      offscreenBuffer = createImage(this.getWidth(), this.getHeight()); 
      offscreenGraphics = offscreenBuffer.getGraphics(); 
     } 

     for (int x = 0; x < widthInCharacters; x++) { 
      for (int y = 0; y < heightInCharacters; y++) { 
       if (oldBackgroundColors[x][y] == backgroundColors[x][y] 
       && oldForegroundColors[x][y] == foregroundColors[x][y] 
       && oldChars[x][y] == chars[x][y]) 
        continue; 

       Color bg = backgroundColors[x][y]; 
       Color fg = foregroundColors[x][y]; 

       LookupOp op = setColors(bg, fg); 
       BufferedImage img = op.filter(glyphs[chars[x][y]], null); 
       offscreenGraphics.drawImage(img, x * charWidth, y * charHeight, null); 

       oldBackgroundColors[x][y] = backgroundColors[x][y]; 
       oldForegroundColors[x][y] = foregroundColors[x][y]; 
       oldChars[x][y] = chars[x][y]; 
      } 
     } 

     g.drawImage(offscreenBuffer,0,0,this); 
    } 

回答

1

鉤到畫圖-event在構造函數:

public AsciiPanel() 
{ 
    this(80, 24); // <-- Change also this to signature "public AsciiPanel() : base(80, 24) { ... }" 
    Paint += new PaintEventHandler(MyPaintProcedure); 
} 

然後實現 「MyPaintProcedure」 是這樣的:

private void MyPaintProcedure(object sender, PaintEventArgs e) 
{ 
    System.Drawing.Graphics g = e.Graphics; 
} 

其餘的應該是非常微不足道的。

+0

謝謝,這已經幫了我很多。然而,如果你能幫我弄清楚C#中這段代碼的正確語法是什麼,我想我可以通過自己來判斷其餘部分: 'private Image offscreenBuffer; private graphics offscreenGraphics; ... 如果(offscreenBuffer == NULL){ offscreenBuffer =的createImage(this.getWidth(),this.getHeight()); offscreenGraphics = offscreenBuffer.getGraphics(); }' – Skyswimsky

+0

而且,雖然它與我的問題無關,但評論中是否沒有可用的換行符? – Skyswimsky

+0

'offScreenBuffer = createImage(this.Width,this.Height);''offscreenGraphics = Graphics.FromImage(offScreenBuffer);'不,在這裏評論中沒有允許線路剎車。而且,如果您的問題得到解答,請相應標記。 –