/**
* Render cells, starting at specified item.
*
* @param graphics
* @param treemap
* @param item
* @param active
*/
public void renderTree(TreemapGraphics graphics, Treemap treemap, Object item, boolean active) {
TreemapCell cell = treemap.getCell(item);
if (cell == null) {
return;
}
boolean visible = cell.isLeaf() || cell.getFramed() != null;
Object value = cell.getValue();
if (active) {
if (visible) {
graphics.fill(cell, colorProvider.getHighlightColor(item, value));
}
} else {
Rectangle borders = cell.getBorders();
if (borders != null) {
graphics.fill(borders, colorProvider.getBorderColor(item, value));
}
if (visible) {
Color color1 = colorProvider.getBackgroundColor(item, value);
Color color2 = colorProvider.getBackgroundGradientColor(item, value);
graphics.fill(cell, color1, color2);
}
}
if (!cell.isLeaf()) {
Rectangle framed = cell.getFramed();
if (framed != null) {
graphics.fill(framed, colorProvider.getBorderColor(item, value));
}
for (Object node : cell.getChildren()) {
renderTree(graphics, treemap, node, false);
}
}
}
private void renderLabels(
TreemapGraphics graphics, Treemap treemap, Object item, boolean forked, int levels) {
if (levels == 0) {
return;
}
TreemapCell cell = treemap.getCell(item);
if (cell == null) {
return;
}
boolean attachLabel;
switch (attachLabelMode) {
case AnyVisible:
attachLabel = cell.isLeaf() || cell.getFramed() != null;
break;
case VisibleForked:
attachLabel = cell.isLeaf() || cell.getFramed() != null || forked;
break;
default:
attachLabel = true;
}
if (attachLabel) {
if (renderLabel(graphics, cell, item) && cell.getFramed() != null) {
renderChildrenLabels(graphics, treemap, cell.getChildren(), levels - 1);
}
} else if (attachLabelMode != AttachLabelMode.TopLevelsOnly) {
renderChildrenLabels(graphics, treemap, cell.getChildren(), levels - 1);
}
}
/**
* Render all cells.
*
* @param graphics
* @param treemap
*/
public void renderTree(TreemapGraphics graphics, Treemap treemap) {
for (Object item : treemap.getElements()) {
renderTree(graphics, treemap, item, false);
}
}
/**
* Render all labels.
*
* @param graphics
* @param treemap
* @param input
*/
public void renderLabels(TreemapGraphics graphics, Treemap treemap) {
Object[] elements = treemap.getElements();
for (Object element : elements) {
renderLabels(graphics, treemap, element, elements.length > 1, labelLevels);
}
}
