private boolean noProperContent() {
return model == null
|| model.getRowCount() <= 0
|| model.getColCount() <= 0
|| colWidth == null
|| colWidth.length <= 0;
}
@Override
public boolean onKeyboardEvent(KeyboardEvent event) {
if (event == null) throw new NullPointerException("event may not be null");
if (!event.isSpecial() || event.isModified()) return false;
switch (event.getSpecial()) {
case ARROW_DOWN:
return onArrowDown(event, false);
case ARROW_UP:
return onArrowUp(event, false);
case ARROW_RIGHT:
return onArrowRight(event);
case ARROW_LEFT:
return onArrowLeft(event);
case ALTERNATIVE_ARROW_DOWN:
return onArrowDown(event, true);
case ALTERNATIVE_ARROW_UP:
return onArrowUp(event, true);
// FIXME:case KeyboardEvent.ALTERNATIVE_ARROW_RIGHT:
// FIXME:case KeyboardEvent.ALTERNATIVE_ARROW_LEFT:
case HOME:
return onHome(event);
case END:
return onEnd(event);
case ALTERNATIVE_HOME:
return onLineHome(event);
case ALTERNATIVE_END:
return onLineEnd(event);
case PAGE_DOWN:
return onPageDown(event, false);
case PAGE_UP:
return onPageUp(event, false);
case ALTERNATIVE_PAGE_DOWN:
return onPageDown(event, true);
case ALTERNATIVE_PAGE_UP:
return onPageUp(event, true);
case ENTER:
if (noProperContent()
|| clickHandler == null
|| hotPointY < 0
|| hotPointY >= model.getRowCount()
|| getColUnderPos(hotPointX) < 0) return false;
return clickHandler.onClick(
model,
getColUnderPos(hotPointX),
hotPointY,
model.getCell(getColUnderPos(hotPointX), hotPointY));
default:
return false;
}
}
private boolean onEnd(KeyboardEvent event) {
if (noContentCheck()) return true;
final int count = model.getRowCount();
hotPointY = count;
onNewHotPointY(false);
return true;
}
private void onNewHotPointY(boolean briefIntroduction) {
final int count = model.getRowCount();
hotPointX = hotPointY < count ? initialHotPointX : 0;
cellShift = 0;
environment.onAreaNewHotPoint(this);
if (hotPointY < count)
appearance.introduceRow(model, hotPointY, briefIntroduction ? INTRODUCTION_BRIEF : 0);
else environment.hint(Hints.EMPTY_LINE);
}
private boolean onArrowDown(KeyboardEvent event, boolean briefIntroduction) {
if (noContentCheck()) return true;
final int count = model.getRowCount();
if (hotPointY >= count) {
environment.hint(Hints.TABLE_NO_ROWS_BELOW);
return true;
}
++hotPointY;
onNewHotPointY(briefIntroduction);
return true;
}
private boolean onPageDown(KeyboardEvent event, boolean briefIntroduction) {
if (noContentCheck()) return true;
final int count = model.getRowCount();
if (hotPointY >= count) {
environment.hint(Hints.TABLE_NO_ROWS_BELOW);
return true;
}
hotPointY += environment.getAreaVisibleHeight(this);
if (hotPointY >= count) hotPointY = count;
onNewHotPointY(briefIntroduction);
return true;
}
private boolean onArrowUp(KeyboardEvent event, boolean briefIntroduction) {
if (noContentCheck()) return true;
final int count = model.getRowCount();
if (hotPointY <= 0) {
environment.hint(Hints.TABLE_NO_ROWS_ABOVE);
return true;
}
--hotPointY;
if (hotPointY >= count) hotPointY = count - 1;
onNewHotPointY(briefIntroduction);
return true;
}
public void refresh(boolean refreshModel) {
if (model == null) {
colWidth = null;
cellShift = 0;
hotPointX = 0;
hotPointY = 0;
environment.onAreaNewContent(this);
environment.onAreaNewHotPoint(this);
return;
}
if (refreshModel) model.refresh();
final int colCount = model.getColCount();
final int rowCount = model.getRowCount();
if (colCount <= 0 || rowCount <= 0) {
colWidth = null;
cellShift = 0;
hotPointX = 0;
hotPointY = 0;
environment.onAreaNewContent(this);
environment.onAreaNewHotPoint(this);
return;
}
initialHotPointX = appearance.getInitialHotPointX(model);
colWidth = new int[colCount];
int totalWidth = initialHotPointX;
for (int i = 0; i < colCount; ++i) {
final int width = appearance.getColWidth(model, i);
colWidth[i] = width >= 1 ? width : 1;
totalWidth += (colWidth[i] + 1);
}
if (hotPointY > rowCount) hotPointY = rowCount;
if (hotPointY < rowCount && hotPointX >= totalWidth)
hotPointX =
totalWidth - 1; // totalWidth may not be zero as always we have at least one column here;
if (hotPointY == rowCount) hotPointX = 0;
environment.onAreaNewContent(this);
environment.onAreaNewHotPoint(this);
}
@Override
public String getLine(int index) {
if (noProperContent())
return index <= 0 ? environment.staticStr(LangStatic.TABLE_NO_CONTENT) : "";
if (index < 0 || index >= model.getRowCount()) return "";
final int currentCol = getColUnderPos(hotPointX);
String line = getStringOfLen(appearance.getRowPrefix(model, index), initialHotPointX, "", "");
if (index != hotPointY || currentCol < 0) {
for (int i = 0; i < model.getColCount(); ++i)
line += getStringOfLen(appearance.getCellText(model, i, index), colWidth[i], ">", " ");
return line;
}
if (currentCol > 0)
for (int i = 0; i < currentCol; ++i)
line += getStringOfLen(appearance.getCellText(model, i, index), colWidth[i], ">", " ");
String currentColText = appearance.getCellText(model, currentCol, index);
if (cellShift > 0 && cellShift < currentColText.length())
currentColText = currentColText.substring(cellShift);
line += getStringOfLen(currentColText, colWidth[currentCol], ">", " ");
if (currentCol + 1 < colWidth.length)
for (int i = currentCol + 1; i < colWidth.length; ++i)
line += getStringOfLen(appearance.getCellText(model, i, index), colWidth[i], ">", " ");
return line;
}
private boolean onArrowLeft(KeyboardEvent event) {
if (noContentCheck()) return true;
final int count = model.getRowCount();
if (hotPointY < 0 || hotPointY >= count) {
environment.hint(Hints.EMPTY_LINE);
return true;
}
if (hotPointX < initialHotPointX) hotPointX = initialHotPointX;
if (getColUnderPos(hotPointX) < 0) hotPointX = initialHotPointX;
final int currentCol = getColUnderPos(hotPointX);
final int currentColWidth = colWidth[currentCol];
final int colStartPos = getColStartPos(currentCol);
final TableCell c =
new TableCell(
hotPointX - colStartPos,
cellShift,
currentColWidth,
appearance.getCellText(model, currentCol, hotPointY));
if (!c.movePrev()) {
if (currentCol <= 0) {
environment.hint(Hints.TABLE_BEGIN_OF_ROW);
return true;
}
final String prevColText = appearance.getCellText(model, currentCol - 1, hotPointY);
final int prevColWidth = colWidth[currentCol - 1];
final int prevColStartPos = getColStartPos(currentCol - 1);
if (prevColText.length() > prevColWidth) {
hotPointX = prevColStartPos + prevColWidth;
cellShift = prevColText.length() - prevColWidth;
} else {
cellShift = 0;
hotPointX = prevColStartPos + prevColText.length();
}
environment.hint(Hints.TABLE_END_OF_COL);
environment.onAreaNewContent(this);
environment.onAreaNewHotPoint(this);
return true;
}
cellShift = c.shift;
hotPointX = c.pos + colStartPos;
if (c.pos == c.width) // Should never happen;
environment.hint(Hints.TABLE_END_OF_COL);
else environment.sayLetter(c.line.charAt(c.pos + c.shift));
environment.onAreaNewContent(this);
environment.onAreaNewHotPoint(this);
return true;
}
private boolean onArrowRight(KeyboardEvent event) {
if (noContentCheck()) return true;
final int count = model.getRowCount();
if (hotPointY < 0 || hotPointY >= count) {
environment.hint(Hints.EMPTY_LINE);
return true;
}
// Checking that hot point not before proper line begin;
if (hotPointX < initialHotPointX) hotPointX = initialHotPointX;
if (getColUnderPos(hotPointX) < 0) hotPointX = initialHotPointX;
final int currentCol = getColUnderPos(hotPointX);
final int currentColWidth = colWidth[currentCol];
final int colStartPos = getColStartPos(currentCol);
final int nextColStartPos = colStartPos + colWidth[currentCol] + 1;
final TableCell c =
new TableCell(
hotPointX - colStartPos,
cellShift,
currentColWidth,
appearance.getCellText(model, currentCol, hotPointY));
if (!c.moveNext()) {
if (currentCol + 1 >= colWidth.length) {
environment.hint(Hints.TABLE_END_OF_ROW);
return true;
}
cellShift = 0;
hotPointX = nextColStartPos;
final String nextColText = appearance.getCellText(model, currentCol + 1, hotPointY);
if (!nextColText.isEmpty()) environment.sayLetter(nextColText.charAt(0));
else
environment.hint(
currentCol + 2 < colWidth.length ? Hints.TABLE_END_OF_COL : Hints.TABLE_END_OF_ROW);
environment.onAreaNewContent(this);
environment.onAreaNewHotPoint(this);
return true;
}
cellShift = c.shift;
hotPointX = c.pos + colStartPos;
if (c.pos + c.shift >= c.line.length())
environment.hint(
currentCol + 1 < colWidth.length ? Hints.TABLE_END_OF_COL : Hints.TABLE_END_OF_ROW);
else environment.sayLetter(c.line.charAt(c.pos + c.shift));
environment.onAreaNewContent(this);
environment.onAreaNewHotPoint(this);
return true;
}
@Override
public int getLineCount() {
if (noProperContent()) return 2;
return model.getRowCount() + 1;
}
public int getSelectedRowIndex() {
return hotPointY < model.getRowCount() ? hotPointY : -1;
}
public Object getSelectedRow() {
final int index = getSelectedRowIndex();
if (index < 0) return null;
return model.getRow(index);
}