private Insets getCalculatedInsets(
PanePainter pane, int index, boolean selected, Direction direction) {
Rectangle b = pane.getBoundsAt(index);
final int sizer = b.height + b.width;
Icon icon = pane.getIconAt(index);
pane.setIconAt(index, new SizeIcon(sizer, sizer));
if (selected) pane.setSelectedIndex(index);
Rectangle bounds = pane.getBoundsAt(index);
pane.setIconAt(index, icon);
pane.setSelectedIndex(DEFAULT_SELECTED_INDEX);
int height = bounds.height - sizer - getHeightCompensate(direction);
int width = bounds.width - sizer - getWidthCompensate(direction);
int top = height / 2;
int left = width / 2 + width % 2;
int bottom = height / 2 + height % 2;
int right = width / 2;
return new Insets(top, left, bottom, right);
}
private void estimateSwappedTabDirection(PanePainter pane, int index) {
reset(pane);
SizeIcon icon = new SizeIcon(80, 80);
SizeIcon icon2 = new SizeIcon(160, 80);
pane.addTab(EMPTY_STRING, icon, getComponent());
pane.doValidation();
Rectangle bounds = pane.getBoundsAt(0);
pane.setIconAt(0, icon2);
pane.doValidation();
Rectangle bounds2 = pane.getBoundsAt(0);
swapWidthHeights[index] = bounds2.height > 1.5 * bounds.height;
}
private void calculateAreaInsets(PanePainter pane, int index, Direction direction) {
// Area insets
pane.setSelectedIndex(0);
Rectangle selectedBounds = pane.getBoundsAt(0);
pane.setSelectedIndex(DEFAULT_SELECTED_INDEX);
Rectangle normalBounds = pane.getBoundsAt(0);
int left = 0;
int top = 0;
int bottom = 0;
int right = 0;
if (direction == Direction.UP) {
left = Math.min(selectedBounds.x, normalBounds.x);
top = Math.min(selectedBounds.y, normalBounds.y);
bottom = 0;
} else if (direction == Direction.DOWN) {
left = Math.min(selectedBounds.x, normalBounds.x);
top = 0;
bottom =
pane.getHeight()
- Math.max(
selectedBounds.y + selectedBounds.height, normalBounds.y + normalBounds.height);
} else if (direction == Direction.LEFT) {
top = Math.min(selectedBounds.y, normalBounds.y);
left = Math.min(selectedBounds.x, normalBounds.x);
right = 0;
} else {
top = Math.min(selectedBounds.y, normalBounds.y);
left = 0;
right =
pane.getWidth()
- Math.max(
selectedBounds.x + selectedBounds.width, normalBounds.x + normalBounds.width);
}
Dimension sizeTemp = pane.getSize();
reset(pane);
for (int i = 0; i < 4; i++) pane.addTab(EMPTY_STRING, SizeIcon.EMPTY, getComponent());
pane.setSelectedIndex(-1);
pane.setSize(pane.getMinimumSize());
pane.doValidation();
if (!direction.isHorizontal()) {
int width = pane.getWidth() - 1;
boolean found = false;
while (!found) {
width++;
pane.setSize(width, pane.getHeight());
pane.doValidation();
found = pane.getBoundsAt(0).y == pane.getBoundsAt(3).y;
}
Rectangle endBounds = pane.getBoundsAt(3);
right = pane.getWidth() - endBounds.x - endBounds.width - spacings[index];
} else {
int height = pane.getHeight() - 1;
boolean found = false;
while (!found) {
height++;
pane.setSize(pane.getWidth(), height);
pane.doValidation();
found = pane.getBoundsAt(0).x == pane.getBoundsAt(3).x;
}
Rectangle endBounds = pane.getBoundsAt(3);
bottom = pane.getHeight() - endBounds.y - endBounds.height - spacings[index];
}
areaInsets[index] = new Insets(top, left, bottom, right);
pane.setSize(sizeTemp);
pane.doValidation();
}
private void estimateContentTabAreaBorderColor(
PanePainter pane, int index, final Direction direction) {
Dimension preSize = pane.getSize();
reset(pane);
pane.addTab(EMPTY_STRING, SizeIcon.EMPTY, getComponent());
pane.setSelectedIndex(-1);
Dimension paneSize = pane.getMinimumSize();
if (direction.isHorizontal()) pane.setSize(paneSize.width, paneSize.height * 2);
else pane.setSize(paneSize.width * 2, paneSize.height);
pane.doValidation();
Rectangle tabBounds = pane.getBoundsAt(0);
BufferedImage img =
new BufferedImage(pane.getWidth(), pane.getHeight(), BufferedImage.TYPE_INT_ARGB);
int x = 0;
int y = 0;
if (direction == Direction.UP) {
x = tabBounds.x + (tabBounds.width / 2);
y = pane.getHeight() - contentInsets[index].top - contentInsets[index].bottom - 1;
} else if (direction == Direction.DOWN) {
x = tabBounds.x + (tabBounds.width / 2);
y = contentInsets[index].top + contentInsets[index].bottom;
} else if (direction == Direction.LEFT) {
x = pane.getWidth() - contentInsets[index].left - contentInsets[index].right - 1;
y = tabBounds.y + (tabBounds.height / 2);
} else {
x += contentInsets[index].left + contentInsets[index].right;
y = tabBounds.y + (tabBounds.height / 2);
}
final int px = x;
final int py = y;
RGBImageFilter colorFilter =
new RGBImageFilter() {
@Override
public int filterRGB(int x, int y, int rgb) {
if (px == x && py == y) {
int r = (rgb >> 16) & 0xff;
int g = (rgb >> 8) & 0xff;
int b = (rgb) & 0xff;
int a = (rgb >> 24) & 0xff;
contentTabAreaBorderColors[getDirectionIndex(direction.getOpposite())] =
new Color(r, g, b, a);
}
return rgb;
}
};
FilteredImageSource source = new FilteredImageSource(img.getSource(), colorFilter);
pane.paint(img.getGraphics());
BufferedImage img2 =
new BufferedImage(pane.getWidth(), pane.getHeight(), BufferedImage.TYPE_INT_ARGB);
img2.getGraphics().drawImage(Toolkit.getDefaultToolkit().createImage(source), 0, 0, null);
pane.setSize(preSize);
pane.doValidation();
}
private void initValues(PanePainter pane, int index, Direction direction) {
estimateSwappedTabDirection(pane, index);
reset(pane);
pane.setSize(1000, 1000);
boolean upDown = !direction.isHorizontal();
for (int i = 0; i < DEFAULT_TAB_COUNT; i++) {
pane.addTab(EMPTY_STRING, getComponent());
}
pane.setSelectedIndex(DEFAULT_SELECTED_INDEX);
pane.doValidation();
// Tab insets if any from UImanager
Insets insets = UIManager.getInsets("TabbedPane.tabInsets");
if (insets == null) insets = new Insets(0, 0, 0, 0);
if (!upDown) tabInsets[index] = new Insets(0, insets.left, 0, insets.right);
else tabInsets[index] = InsetsUtil.EMPTY_INSETS;
// Raised
Rectangle bounds = pane.getBoundsAt(0);
Rectangle bounds2 = pane.getBoundsAt(pane.getSelectedIndex());
if (direction == Direction.UP) raiseds[index] = Math.max(0, bounds.y - bounds2.y);
else if (direction == Direction.LEFT) raiseds[index] = Math.max(0, bounds.x - bounds2.x);
else if (direction == Direction.DOWN) raiseds[index] = raiseds[getDirectionIndex(Direction.UP)];
else raiseds[index] = raiseds[getDirectionIndex(Direction.LEFT)];
// Spacing
Insets normal = getCalculatedInsets(pane, 0, false, direction);
Insets selected = getCalculatedInsets(pane, 0, true, direction);
if (upDown) spacings[index] = normal.left + normal.right - selected.left - selected.right;
else spacings[index] = normal.top + normal.bottom - selected.top - selected.bottom;
// Normal insets
normalInsets[index] = getCalculatedInsets(pane, 0, false, direction);
// Selected insets
Insets insetsTemp = getCalculatedInsets(pane, 0, true, direction);
int spacing = spacings[index];
int spaceFirst = spacing / 2;
int spaceAfter = spacing / 2 + spacing % 2;
if (direction == Direction.UP) {
insetsTemp.bottom = normalInsets[index].bottom;
insetsTemp.top = normalInsets[index].top;
insetsTemp.left += spaceFirst;
insetsTemp.right += spaceAfter;
} else if (direction == Direction.LEFT) {
insetsTemp.right = normalInsets[index].right;
insetsTemp.left = normalInsets[index].left;
insetsTemp.top += spaceFirst;
insetsTemp.bottom += spaceAfter;
} else if (direction == Direction.RIGHT) {
insetsTemp.right = normalInsets[index].right;
insetsTemp.left = normalInsets[index].left;
insetsTemp.top += spaceFirst;
insetsTemp.bottom += spaceAfter;
} else {
insetsTemp.bottom = normalInsets[index].bottom;
insetsTemp.top = normalInsets[index].top;
insetsTemp.left += spaceFirst;
insetsTemp.right += spaceAfter;
}
selectedInsets[index] = insetsTemp;
// Content insets
JPanel c = new JPanel();
pane.addTab(EMPTY_STRING, c);
pane.setSelectedIndex(pane.getTabCount() - 1);
pane.doValidation();
Point l = SwingUtilities.convertPoint(c.getParent(), c.getLocation(), pane);
Rectangle boundsTemp = pane.getBoundsAt(0);
int top = 0;
int left = 0;
int bottom = 0;
int right = 0;
if (direction == Direction.UP) {
top = l.y - boundsTemp.height - boundsTemp.y;
left = l.x;
bottom = pane.getHeight() - l.y - c.getHeight();
right = pane.getWidth() - l.x - c.getWidth();
} else if (direction == Direction.DOWN) {
top = l.y;
left = l.x;
bottom = pane.getHeight() - c.getHeight() - l.y - (pane.getHeight() - boundsTemp.y);
right = pane.getWidth() - l.x - c.getWidth();
} else if (direction == Direction.LEFT) {
top = l.y;
left = l.x - boundsTemp.width - boundsTemp.x;
bottom = pane.getHeight() - l.y - c.getHeight();
right = pane.getWidth() - l.x - c.getWidth();
} else {
top = l.y;
left = l.x;
bottom = pane.getHeight() - l.y - c.getHeight();
right = pane.getWidth() - c.getWidth() - l.x - (pane.getWidth() - boundsTemp.x);
}
contentInsets[index] = new Insets(top, left, bottom, right);
Insets i = contentInsets[0];
Insets i2 = InsetsUtil.rotate(direction.getNextCW(), i);
Insets adjustedInsets = InsetsUtil.max(i, i2);
adjustedContentInsets[index] = adjustedInsets;
adjustedContentInsetsTabAreaHidden[index] =
new Insets(
direction == Direction.UP ? adjustedInsets.left : adjustedInsets.top,
direction == Direction.LEFT ? adjustedInsets.top : adjustedInsets.left,
direction == Direction.DOWN ? adjustedInsets.right : adjustedInsets.bottom,
direction == Direction.RIGHT ? adjustedInsets.bottom : adjustedInsets.right);
pane.removeTabAt(pane.getTabCount() - 1);
pane.setSelectedIndex(DEFAULT_SELECTED_INDEX);
pane.doValidation();
// Minimum sizes
Rectangle rectangleBounds = pane.getBoundsAt(DEFAULT_SELECTED_INDEX);
tabMinimumSizes[index] = new Dimension(rectangleBounds.width, rectangleBounds.height);
minimumSizes[index] =
new Dimension(
rectangleBounds.width - tabInsets[index].left - tabInsets[index].right,
rectangleBounds.height - tabInsets[index].top - tabInsets[index].bottom);
calculateAreaInsets(pane, index, direction);
estimateContentTabAreaBorderColor(pane, index, direction);
}