private static <T extends FlowRenderable> int determineMinWidth(
Iterable<T> flowRenderables, TextRenderStyle defaultRenderStyle) {
int minWidth = 0;
for (FlowRenderable flowRenderable : flowRenderables) {
minWidth = Math.max(minWidth, flowRenderable.getMinWidth(defaultRenderStyle));
}
return minWidth;
}
public static <T extends FlowRenderable<T>> Iterable<LaidFlowLine<T>> getLines(
Collection<T> flowRenderables,
TextRenderStyle defaultRenderStyle,
int yStart,
ContainerRenderSpace containerRenderSpace) {
// Take into account a minimum width
int minWidth = determineMinWidth(flowRenderables, defaultRenderStyle);
int x = 0;
int y = yStart;
int availableWidth = Math.max(minWidth, containerRenderSpace.getWidthForVerticalPosition(y));
List<LaidFlowLine<T>> result = new LinkedList<>();
int maxHeightInLine = 0;
Deque<T> renderablesQueue = new LinkedList<>(flowRenderables);
List<T> renderablesInLine = new LinkedList<>();
while (!renderablesQueue.isEmpty()) {
FlowRenderable<T> flowRenderable = renderablesQueue.removeFirst();
FlowRenderable.SplitResult<T> splitResult =
flowRenderable.splitAt(defaultRenderStyle, availableWidth - x);
if (splitResult.before == null) {
// This is the end of the line, this renderable doesn't fit
result.add(new DefaultLaidFlowLine<>(x, maxHeightInLine, renderablesInLine));
renderablesInLine = new LinkedList<>();
x = 0;
y += maxHeightInLine;
availableWidth = Math.max(minWidth, containerRenderSpace.getWidthForVerticalPosition(y));
maxHeightInLine = 0;
renderablesQueue.addFirst(splitResult.rest);
} else {
// Append the "before" part and push the "rest" onto the Deque if not null
int renderableWidth = splitResult.before.getWidth(defaultRenderStyle);
int renderableHeight = splitResult.before.getHeight(defaultRenderStyle);
x += renderableWidth;
maxHeightInLine = Math.max(maxHeightInLine, renderableHeight);
renderablesInLine.add(splitResult.before);
if (splitResult.rest != null) {
result.add(new DefaultLaidFlowLine<>(x, maxHeightInLine, renderablesInLine));
renderablesInLine = new LinkedList<>();
x = 0;
y += maxHeightInLine;
availableWidth = Math.max(minWidth, containerRenderSpace.getWidthForVerticalPosition(y));
maxHeightInLine = 0;
renderablesQueue.addFirst(splitResult.rest);
}
}
}
result.add(new DefaultLaidFlowLine<>(x, maxHeightInLine, renderablesInLine));
return result;
}
