public void paintComponent(Graphics g) {
super.paintComponent(g);
((Graphics2D) g)
.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
Dimension theSize = getSize();
if (mColorListMode == VisualizationColor.cColorListModeCategories) {
int categories = mCategoryColorList.length;
if (categories <= cMaxEditableColors) {
int fieldWidth = (theSize.width - 2 * cBorder + cSpacing) / categories - cSpacing;
mRect = new Rectangle[categories];
for (int i = 0; i < categories; i++) {
mRect[i] =
new Rectangle(
cBorder + i * (fieldWidth + cSpacing),
cBorder,
fieldWidth,
theSize.height - 2 * cBorder);
drawColorButton(g, i);
}
} else {
final String message = "<too many colors to edit>";
g.setColor(Color.GRAY);
g.setFont(new Font("Arial", Font.BOLD, 13));
FontMetrics m = g.getFontMetrics();
g.drawString(
message,
(theSize.width - m.stringWidth(message)) / 2,
(theSize.height + m.getHeight()) / 2 - m.getDescent());
}
} else {
int size = theSize.height - 2 * cBorder;
int x1 = 2 * cBorder + size;
int x2 = theSize.width - 2 * cBorder - size;
mRect = new Rectangle[3];
mRect[0] = new Rectangle(cBorder, cBorder, size, size);
mRect[1] =
new Rectangle(
theSize.width - size - cBorder, theSize.height - size - cBorder, size, size);
mRect[cColorWedgeButton] = new Rectangle(x1, cBorder, x2 - x1, size);
drawColorButton(g, 0);
drawColorButton(g, 1);
drawColorButton(g, cColorWedgeButton);
}
}
private void drawColorButton(Graphics g, int no) {
g.setColor(cDarkShadowColor);
g.drawLine(mRect[no].x, mRect[no].y, mRect[no].x + mRect[no].width - 2, mRect[no].y);
g.drawLine(mRect[no].x, mRect[no].y, mRect[no].x, mRect[no].y + mRect[no].height - 2);
g.drawLine(
mRect[no].x + mRect[no].width - 2,
mRect[no].y + 2,
mRect[no].x + mRect[no].width - 2,
mRect[no].y + mRect[no].height - 2);
g.drawLine(
mRect[no].x + 2,
mRect[no].y + mRect[no].height - 2,
mRect[no].x + mRect[no].width - 2,
mRect[no].y + mRect[no].height - 2);
if (mPressedButton != no || !mMouseOverButton) g.setColor(Color.white);
g.drawLine(
mRect[no].x + 1, mRect[no].y + 1, mRect[no].x + mRect[no].width - 3, mRect[no].y + 1);
g.drawLine(
mRect[no].x + 1, mRect[no].y + 1, mRect[no].x + 1, mRect[no].y + mRect[no].height - 3);
if (mPressedButton == no && mMouseOverButton) g.setColor(Color.white);
g.drawLine(
mRect[no].x + mRect[no].width - 1,
mRect[no].y + 1,
mRect[no].x + mRect[no].width - 1,
mRect[no].y + mRect[no].height - 1);
g.drawLine(
mRect[no].x + 1,
mRect[no].y + mRect[no].height - 1,
mRect[no].x + mRect[no].width - 1,
mRect[no].y + mRect[no].height - 1);
if (mColorListMode != VisualizationColor.cColorListModeCategories && no == cColorWedgeButton) {
int x1 = mRect[no].x + 2;
int x2 = x1 + mRect[no].width - 4;
if (x1 < x2) {
for (int x = x1; x < x2; x++) {
int c = mWedgeColorList.length * (x - x1) / (x2 - x1);
g.setColor(
(mPressedButton == no && mMouseOverButton)
? mWedgeColorList[c].darker()
: mWedgeColorList[c]);
g.drawLine(x, mRect[no].y + 2, x, mRect[no].y + mRect[no].height - 3);
}
}
} else {
Color color =
(mColorListMode == VisualizationColor.cColorListModeCategories)
? mCategoryColorList[no]
: mWedgeColorList[no * (mWedgeColorList.length - 1)];
if (mPressedButton == no && mMouseOverButton) color = color.darker();
g.setColor(color);
g.fillRect(mRect[no].x + 2, mRect[no].y + 2, mRect[no].width - 4, mRect[no].height - 4);
}
}