public static javax.microedition.lcdui.Image createImage(javax.microedition.lcdui.Image image,
int x, int y, int width, int height)
{
Image ret = Image.createImage(width, height);
ret.getGraphics().drawImageRegion(image, 0, 0, x, y, width, height, 0);
return(ret);
}
public Image subImage(int x, int y, int w, int h)
{
if (x >= 0 && (x + w) <= getWidth() && y >= 0 && (y + h) <= getHeight())
{
Image buff = createImage(w, h);
Graphics bg = buff.getGraphics();
bg.drawImage(this, -x, -y);
return(buff);
}
return(null);
}
public virtual void drawLine(Line line, int color)
{
Image bufImage = Image.createImage(image.getWidth(), image.getHeight());
Graphics g = bufImage.getGraphics();
g.drawImage(image, 0, 0, 0);
g.setColor(color);
g.drawLine(line.getP1().getX(), line.getP1().getY(), line.getP2().getX(), line.getP2().getY());
image = bufImage;
repaint();
}
public virtual void drawCross(Point point, int color)
{
Image bufImage = Image.createImage(image.getWidth(), image.getHeight());
Graphics g = bufImage.getGraphics();
g.drawImage(image, 0, 0, 0);
g.setColor(color);
g.drawLine(point.getX() - 5, point.getY(), point.getX() + 5, point.getY());
g.drawLine(point.getX(), point.getY() - 5, point.getX(), point.getY() + 5);
image = bufImage;
repaint();
}
public virtual void drawPoints(Point[] points, int color)
{
Image bufImage = Image.createImage(image.getWidth(), image.getHeight());
Graphics g = bufImage.getGraphics();
g.drawImage(image, 0, 0, 0);
g.setColor(color);
for (int i = 0; i < points.length - 1; i++)
{
g.drawLine(points[i].getX(), points[i].getY(), points[i].getX() + 1, points[i].getY());
}
image = bufImage;
repaint();
}
public virtual void drawLines(Line[] lines, int color)
{
Image bufImage = Image.createImage(image.getWidth(), image.getHeight());
Graphics g = bufImage.getGraphics();
g.drawImage(image, 0, 0, 0);
g.setColor(color);
for (int i = 0; i < lines.length - 1; i++)
{
g.drawLine(lines[i].getP1().getX(), lines[i].getP1().getY(), lines[i].getP2().getX(), lines[i].getP2().getY());
}
image = bufImage;
repaint();
}
public virtual void drawMatrix(bool[][] matrix)
{
Image bufImage = Image.createImage(image.getWidth(), image.getHeight());
Graphics g = bufImage.getGraphics();
g.setColor(0xCCCCCC);
for (int y = 0; y < matrix[0].Length; y++)
{
for (int x = 0; x < matrix.Length; x++)
{
if (matrix[x][y] == true)
{
g.drawLine(x, y, x + 1, y);
}
}
}
image = bufImage;
repaint();
}
public void flipSelf(int transform)
{
int width = getWidth();
int height = getHeight();
switch (Graphics.FlipTable[transform])
{
case System.Drawing.RotateFlipType.Rotate90FlipNone: //1
case System.Drawing.RotateFlipType.Rotate270FlipNone: //3
case System.Drawing.RotateFlipType.Rotate90FlipX: //5
case System.Drawing.RotateFlipType.Rotate270FlipX: //7
width = getHeight();
height = getWidth();
break;
}
Image dst = createImage(width, height);
Graphics g = dst.getGraphics();
g.drawImageTrans(this, 0, 0, transform);
_dimg = dst.dimg;
}
public System.Drawing.Rectangle cutTransparentImageSize(int broadPixel)
{
System.Drawing.Bitmap image = asBitmap();
System.Drawing.Rectangle ret = new System.Drawing.Rectangle();
int left = 0;
int right = image.Width - 1;
int top = 0;
int bottom = image.Height - 1;
int x = 0;
int y = 0;
System.Drawing.Color c;
#region findTBLR
bool finded = false;
// find left
for (x = 0; x < image.Width; x++)
{
for (y = image.Height - 1; y >= 0; --y)
{
c = image.GetPixel(x, y);
if (c.A != 0)
{
left = x;
finded = true;
break;
}
}
if (finded)
{
break;
}
}
finded = false;
// right
for (x = image.Width - 1; x >= 0; --x)
{
for (y = image.Height - 1; y >= 0; --y)
{
c = image.GetPixel(x, y);
if (c.A != 0)
{
right = x;
finded = true;
break;
}
}
if (finded)
{
break;
}
}
finded = false;
// top
for (y = 0; y < image.Height; y++)
{
for (x = image.Width - 1; x >= 0; --x)
{
c = image.GetPixel(x, y);
if (c.A != 0)
{
top = y;
finded = true;
break;
}
}
if (finded)
{
break;
}
}
finded = false;
// bottom
for (y = image.Height - 1; y >= 0; --y)
{
for (x = image.Width - 1; x >= 0; --x)
{
c = image.GetPixel(x, y);
if (c.A != 0)
{
bottom = y;
finded = true;
break;
}
}
if (finded)
{
break;
}
}
#endregion
left = Math.Max(0, left - broadPixel);
right = Math.Min(image.Width - 1, right + broadPixel);
top = Math.Max(0, top - broadPixel);
bottom = Math.Min(image.Height - 1, bottom + broadPixel);
ret.X = left;
ret.Y = top;
ret.Width = right - left + 1;
ret.Height = bottom - top + 1;
Image dst = createImage(ret.Width, ret.Height);
Graphics dstg = dst.getGraphics();
dstg.drawImage(this, -left, -top);
_dimg = dst.dimg;
dst = null;
return(ret);
}