private boolean onAltEnd(KeyboardEvent event) {
if (noContentCheck()) return true;
if (hotPointY <= 0 || hotPointY > items.length || items[hotPointY - 1] == null) {
luwrain.hint(Hints.EMPTY_LINE);
return true;
}
final Object item = items[hotPointY - 1];
final String line = appearance.getScreenAppearance(item, 0);
int leftBound = appearance.getObservableLeftBound(item);
if (leftBound < 0) leftBound = 0;
if (leftBound > line.length()) leftBound = line.length();
int rightBound = appearance.getObservableRightBound(item);
if (rightBound < 0) rightBound = 0;
if (rightBound >= line.length()) rightBound = line.length();
if (leftBound >= rightBound) {
luwrain.hint(Hints.EMPTY_LINE);
return true;
}
if (hotPointX <= leftBound) {
luwrain.hint(Hints.BEGIN_OF_LINE);
return true;
}
hotPointX = rightBound;
luwrain.hint(Hints.END_OF_LINE);
luwrain.onAreaNewHotPoint(this);
return true;
}
private boolean onAltLeft(KeyboardEvent event) {
if (noContentCheck()) return true;
if (hotPointY <= 0 || hotPointY > items.length || items[hotPointY - 1] == null) {
luwrain.hint(Hints.EMPTY_LINE);
return true;
}
final Object item = items[hotPointY - 1];
final String line = appearance.getScreenAppearance(item, 0);
int leftBound = appearance.getObservableLeftBound(item);
if (leftBound < 0) leftBound = 0;
if (leftBound > line.length()) leftBound = line.length();
int rightBound = appearance.getObservableRightBound(item);
if (rightBound < 0) rightBound = 0;
if (rightBound >= line.length()) rightBound = line.length();
if (leftBound >= rightBound) {
luwrain.hint(Hints.EMPTY_LINE);
return true;
}
if (hotPointX <= leftBound) {
luwrain.hint(Hints.BEGIN_OF_LINE);
return true;
}
final String subline = line.substring(leftBound, rightBound);
WordIterator it = new WordIterator(subline, hotPointX - leftBound);
if (!it.stepBackward()) {
luwrain.hint(Hints.BEGIN_OF_LINE);
return true;
}
hotPointX = it.pos() + leftBound;
luwrain.say(it.announce());
luwrain.onAreaNewHotPoint(this);
return true;
}
@Override
public RegionContent getWholeRegion() {
if (model == null || model.getItemCount() == 0) return null;
final LinkedList<String> res = new LinkedList<String>();
final int count = model.getItemCount();
for (int i = 0; i < count; ++i) {
final String line =
appearance.getScreenAppearance(model.getItem(i), ListItemAppearance.FOR_CLIPBOARD);
res.add(line != null ? line : "");
}
res.add("");
return new RegionContent(res.toArray(new String[res.size()]));
}
@Override
public RegionContent getRegion(int fromX, int fromY, int toX, int toY) {
if (model == null || model.getItemCount() == 0) return null;
if (fromY >= model.getItemCount() || toY >= model.getItemCount()) return null;
if (fromY == toY) {
final String line =
appearance.getScreenAppearance(
model.getItem(fromY - 1), ListItemAppearance.FOR_CLIPBOARD);
if (line.isEmpty()) return null;
final int fromPos = fromX < line.length() ? fromX : line.length();
final int toPos = toX < line.length() ? toX : line.length();
if (fromPos >= toPos) return null;
return new RegionContent(new String[] {line.substring(fromPos, toPos)});
}
final LinkedList<String> res = new LinkedList<String>();
for (int i = fromY; i <= toY; ++i) {
if (i == 0) continue;
final String line =
appearance.getScreenAppearance(model.getItem(i - 1), ListItemAppearance.FOR_CLIPBOARD);
res.add(line != null ? line : "");
}
res.add("");
return new RegionContent(res.toArray(new String[res.size()]));
}
private void onNewHotPointY(boolean briefIntroduction) {
if (hotPointY <= 0) {
hotPointX = 0;
luwrain.hint(Hints.EMPTY_LINE);
luwrain.onAreaNewHotPoint(this);
return;
}
final Object item = items[hotPointY - 1];
luwrain.playSound(Sounds.NEW_LIST_ITEM);
if (item == null) {
hotPointX = 0;
luwrain.hint(Hints.EMPTY_LINE);
} else {
hotPointX = getInitialHotPointX(item);
appearance.introduceItem(item, briefIntroduction ? ListItemAppearance.BRIEF : 0);
}
luwrain.onAreaNewHotPoint(this);
}
@Override
public String getLine(int index) {
if (items == null || index <= 0 || index > items.length) return "";
final Object item = items[index - 1];
return item != null ? appearance.getScreenAppearance(item, 0) : "";
}
private int getInitialHotPointX(Object item) {
if (item == null) return 0;
final String line = appearance.getScreenAppearance(item, 0);
final int leftBound = appearance.getObservableLeftBound(item);
return leftBound < line.length() ? leftBound : line.length();
}