/** paints the Spinner */
public void paint(Graphics g) {
int start_angle = 90;
int done_angle = (int) (percentDone * 360);
g.setColor(getBackground());
g.fillArc(3, 3, getSize().width - 8, getSize().height - 8, 0, 360);
g.setColor(getForeground());
g.fillArc(3, 3, getSize().width - 8, getSize().height - 8, start_angle, done_angle);
g.setColor(Color.black);
g.drawArc(3, 3, getSize().width - 8, getSize().height - 8, 0, 360);
}
/**
* Draws and arc which looks like a curve.<br>
* An ARC is a "piece" of an OVAL.<br>
* The first 5 parameters (g and 4 ints) are the same as drawOval.<br>
* There are 2 additional parameters for the starting degree value and finishing degree of the
* arc. <br>
* 0 degrees is at the 12:00 position and the degrees progress in a CLOCKWISE fashion. <br>
* (90 degrees is at 3:00, 180 degrees is at 6:00, 270 degrees is at 9:00, 360 degrees is back at
* 12:00).
*/
public static void drawArc(
Graphics g, int centerX, int centerY, int hRadius, int vRadius, int start, int finish) {
int hDiameter = 2 * hRadius;
int vDiameter = 2 * vRadius;
if (finish < start) finish += 360;
int newStart = 90 - start; // shifts starting position from 3:00 to 12:00
int newFinish =
start
- finish; // as opposed to finish-start. Subtracting backwards changes from
// counter-clockwise to clockwise.
g.drawArc(centerX - hRadius, centerY - vRadius, hDiameter, vDiameter, newStart, newFinish);
}
/**
* @param g
* @param col
* @param row
* @param iDir
*/
void DrawBoundary(Graphics g, int col, int row, int iDir) {
int x, y;
x = col * 16;
y = row * 16;
switch (iDir) {
case ctables.LEFT:
// draw lower half segment
if (iMaze[row + 1][col] != WALL)
// down empty
if (iMaze[row + 1][col - 1] != WALL)
// left-down empty
{
// arc(x-8,y+8,270,0,6);
g.drawArc(x - 8 - 6, y + 8 - 6, 12, 12, 270, 100);
} else {
g.drawLine(x - 2, y + 8, x - 2, y + 16);
}
else {
g.drawLine(x - 2, y + 8, x - 2, y + 17);
g.drawLine(x - 2, y + 17, x + 7, y + 17);
}
// Draw upper half segment
if (iMaze[row - 1][col] != WALL)
// upper empty
if (iMaze[row - 1][col - 1] != WALL)
// upper-left empty
{
// arc(x-8,y+7,0,90,6);
g.drawArc(x - 8 - 6, y + 7 - 6, 12, 12, 0, 100);
} else {
g.drawLine(x - 2, y, x - 2, y + 7);
}
else {
g.drawLine(x - 2, y - 2, x - 2, y + 7);
g.drawLine(x - 2, y - 2, x + 7, y - 2);
}
break;
case ctables.RIGHT:
// draw lower half segment
if (iMaze[row + 1][col] != WALL)
// down empty
if (iMaze[row + 1][col + 1] != WALL)
// down-right empty
{
// arc(x+16+7,y+8,180,270,6);
g.drawArc(x + 16 + 7 - 6, y + 8 - 6, 12, 12, 180, 100);
} else {
g.drawLine(x + 17, y + 8, x + 17, y + 15);
}
else {
g.drawLine(x + 8, y + 17, x + 17, y + 17);
g.drawLine(x + 17, y + 8, x + 17, y + 17);
}
// Draw upper half segment
if (iMaze[row - 1][col] != WALL)
// upper empty
if (iMaze[row - 1][col + 1] != WALL)
// upper-right empty
{
// arc(x+16+7,y+7,90,180,6);
g.drawArc(x + 16 + 7 - 6, y + 7 - 6, 12, 12, 90, 100);
} else {
g.drawLine(x + 17, y, x + 17, y + 7);
}
else {
g.drawLine(x + 8, y - 2, x + 17, y - 2);
g.drawLine(x + 17, y - 2, x + 17, y + 7);
}
break;
case ctables.UP:
// draw left half segment
if (iMaze[row][col - 1] != WALL)
// left empty
if (iMaze[row - 1][col - 1] != WALL)
// left-upper empty
{
// arc(x+7,y-8,180,270,6);
g.drawArc(x + 7 - 6, y - 8 - 6, 12, 12, 180, 100);
} else {
g.drawLine(x, y - 2, x + 7, y - 2);
}
// Draw right half segment
if (iMaze[row][col + 1] != WALL)
// right empty
if (iMaze[row - 1][col + 1] != WALL)
// right-upper empty
{
// arc(x+8,y-8,270,0,6);
g.drawArc(x + 8 - 6, y - 8 - 6, 12, 12, 270, 100);
} else {
g.drawLine(x + 8, y - 2, x + 16, y - 2);
}
break;
case ctables.DOWN:
// draw left half segment
if (iMaze[row][col - 1] != WALL)
// left empty
if (iMaze[row + 1][col - 1] != WALL)
// left-down empty
{
// arc(x+7,y+16+7,90,180,6);
g.drawArc(x + 7 - 6, y + 16 + 7 - 6, 12, 12, 90, 100);
} else {
g.drawLine(x, y + 17, x + 7, y + 17);
}
// Draw right half segment
if (iMaze[row][col + 1] != WALL)
// right empty
if (iMaze[row + 1][col + 1] != WALL)
// right-down empty
{
// arc(x+8,y+16+7,0,90,6);
g.drawArc(x + 8 - 6, y + 16 + 7 - 6, 12, 12, 0, 100);
} else {
g.drawLine(x + 8, y + 17, x + 15, y + 17);
}
break;
}
}
