public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
JInternalFrame jif = null;
if (c instanceof JInternalFrame) {
jif = (JInternalFrame) c;
} else if (c instanceof JInternalFrame.JDesktopIcon) {
jif = ((JInternalFrame.JDesktopIcon) c).getInternalFrame();
} else {
return;
}
if (jif.isSelected()) {
// Set the line color so the line border gets the correct
// color.
lineColor = activeColor;
super.paintBorder(c, g, x, y, width, height);
} else {
lineColor = inactiveColor;
super.paintBorder(c, g, x, y, width, height);
}
}
/** Draws the InternalFrameBorder's top border. */
protected boolean drawTopBorder(Component c, Graphics g, int x, int y, int width, int height) {
if (super.drawTopBorder(c, g, x, y, width, height) && frame.isResizable()) {
g.setColor(getFrameShadow());
g.drawLine(CORNER_SIZE - 1, y + 1, CORNER_SIZE - 1, y + 4);
g.drawLine(width - CORNER_SIZE - 1, y + 1, width - CORNER_SIZE - 1, y + 4);
g.setColor(getFrameHighlight());
g.drawLine(CORNER_SIZE, y, CORNER_SIZE, y + 4);
g.drawLine(width - CORNER_SIZE, y, width - CORNER_SIZE, y + 4);
return true;
}
return false;
}
/** Draws the InternalFrameBorder's left border. */
protected boolean drawLeftBorder(Component c, Graphics g, int x, int y, int width, int height) {
if (super.drawLeftBorder(c, g, x, y, width, height) && frame.isResizable()) {
g.setColor(getFrameHighlight());
int topY = y + CORNER_SIZE;
g.drawLine(x, topY, x + 4, topY);
int bottomY = height - CORNER_SIZE;
g.drawLine(x + 1, bottomY, x + 5, bottomY);
g.setColor(getFrameShadow());
g.drawLine(x + 1, topY - 1, x + 5, topY - 1);
g.drawLine(x + 1, bottomY - 1, x + 5, bottomY - 1);
return true;
}
return false;
}
/** Draws the InternalFrameBorder's bottom border. */
protected boolean drawBottomBorder(
Component c, Graphics g, int x, int y, int width, int height) {
if (super.drawBottomBorder(c, g, x, y, width, height) && frame.isResizable()) {
int startY = height - getBorderInsets(c).bottom;
g.setColor(getFrameShadow());
g.drawLine(CORNER_SIZE - 1, startY + 1, CORNER_SIZE - 1, height - 1);
g.drawLine(width - CORNER_SIZE, startY + 1, width - CORNER_SIZE, height - 1);
g.setColor(getFrameHighlight());
g.drawLine(CORNER_SIZE, startY, CORNER_SIZE, height - 2);
g.drawLine(width - CORNER_SIZE + 1, startY, width - CORNER_SIZE + 1, height - 2);
return true;
}
return false;
}
/** Draws the InternalFrameBorder's right border. */
protected boolean drawRightBorder(
Component c, Graphics g, int x, int y, int width, int height) {
if (super.drawRightBorder(c, g, x, y, width, height) && frame.isResizable()) {
int startX = width - getBorderInsets(c).right;
g.setColor(getFrameHighlight());
int topY = y + CORNER_SIZE;
g.drawLine(startX, topY, width - 2, topY);
int bottomY = height - CORNER_SIZE;
g.drawLine(startX + 1, bottomY, startX + 3, bottomY);
g.setColor(getFrameShadow());
g.drawLine(startX + 1, topY - 1, width - 2, topY - 1);
g.drawLine(startX + 1, bottomY - 1, startX + 3, bottomY - 1);
return true;
}
return false;
}
// Returns true if the associated internal frame has focus.
protected boolean isActiveFrame() {
return frame.isSelected();
}
/**
* Returns the width of the InternalFrameBorder's resize controls, appearing along the
* InternalFrameBorder's bottom border. Clicking and dragging within these controls lets the
* user change both the InternalFrame's width and height, while dragging between the controls
* constrains resizing to just the vertical dimension. Override this method if you implement
* your own bottom border painting and use a resize control with a different size.
*/
public int resizePartWidth() {
if (!frame.isResizable()) {
return 0;
}
return FrameBorder.BORDER_SIZE;
}