@Override
public void onAdded(WindowBasedTextGUI textGUI, Window window, List<Window> allWindows) {
WindowDecorationRenderer decorationRenderer = getWindowDecorationRenderer(window);
TerminalSize expectedDecoratedSize =
decorationRenderer.getDecoratedSize(window, window.getPreferredSize());
window.setDecoratedSize(expectedDecoratedSize);
if (window.getHints().contains(Window.Hint.FIXED_POSITION)) {
// Don't place the window, assume the position is already set
} else if (allWindows.isEmpty()) {
window.setPosition(TerminalPosition.OFFSET_1x1);
} else if (window.getHints().contains(Window.Hint.CENTERED)) {
int left = (lastKnownScreenSize.getColumns() - expectedDecoratedSize.getColumns()) / 2;
int top = (lastKnownScreenSize.getRows() - expectedDecoratedSize.getRows()) / 2;
window.setPosition(new TerminalPosition(left, top));
} else {
TerminalPosition nextPosition =
allWindows.get(allWindows.size() - 1).getPosition().withRelative(2, 1);
if (nextPosition.getColumn() + expectedDecoratedSize.getColumns()
> lastKnownScreenSize.getColumns()
|| nextPosition.getRow() + expectedDecoratedSize.getRows()
> lastKnownScreenSize.getRows()) {
nextPosition = TerminalPosition.OFFSET_1x1;
}
window.setPosition(nextPosition);
}
// Finally, run through the usual calculations so the window manager's usual prepare method can
// have it's say
prepareWindow(lastKnownScreenSize, window);
}
@Override
public WindowDecorationRenderer getWindowDecorationRenderer(Window window) {
if (window.getHints().contains(Window.Hint.NO_DECORATIONS)) {
return new EmptyWindowDecorationRenderer();
}
return windowDecorationRenderer;
}
/**
* Called by {@link DefaultWindowManager} when iterating through all windows to decide their size
* and position. If you override {@link DefaultWindowManager} to add your own logic to how windows
* are placed on the screen, you can override this method and selectively choose which window to
* interfere with. Note that the two key properties that are read by the GUI system after
* preparing all windows are the position and decorated size. Your custom implementation should
* set these two fields directly on the window. You can infer the decorated size from the content
* size by using the window decoration renderer that is attached to the window manager.
*
* @param screenSize Size of the terminal that is available to draw on
* @param window Window to prepare decorated size and position for
*/
protected void prepareWindow(TerminalSize screenSize, Window window) {
WindowDecorationRenderer decorationRenderer = getWindowDecorationRenderer(window);
TerminalSize contentAreaSize;
if (window.getHints().contains(Window.Hint.FIXED_SIZE)) {
contentAreaSize = window.getSize();
} else {
contentAreaSize = window.getPreferredSize();
}
TerminalSize size = decorationRenderer.getDecoratedSize(window, contentAreaSize);
TerminalPosition position = window.getPosition();
if (window.getHints().contains(Window.Hint.FULL_SCREEN)) {
position = TerminalPosition.TOP_LEFT_CORNER;
size = screenSize;
} else if (window.getHints().contains(Window.Hint.EXPANDED)) {
position = TerminalPosition.OFFSET_1x1;
size =
screenSize.withRelative(
-Math.min(4, screenSize.getColumns()), -Math.min(3, screenSize.getRows()));
if (!size.equals(window.getDecoratedSize())) {
window.invalidate();
}
} else if (window.getHints().contains(Window.Hint.FIT_TERMINAL_WINDOW)
|| window.getHints().contains(Window.Hint.CENTERED)) {
// If the window is too big for the terminal, move it up towards 0x0 and if that's not enough
// then shrink
// it instead
while (position.getRow() > 0 && position.getRow() + size.getRows() > screenSize.getRows()) {
position = position.withRelativeRow(-1);
}
while (position.getColumn() > 0
&& position.getColumn() + size.getColumns() > screenSize.getColumns()) {
position = position.withRelativeColumn(-1);
}
if (position.getRow() + size.getRows() > screenSize.getRows()) {
size = size.withRows(screenSize.getRows() - position.getRow());
}
if (position.getColumn() + size.getColumns() > screenSize.getColumns()) {
size = size.withColumns(screenSize.getColumns() - position.getColumn());
}
if (window.getHints().contains(Window.Hint.CENTERED)) {
int left = (lastKnownScreenSize.getColumns() - size.getColumns()) / 2;
int top = (lastKnownScreenSize.getRows() - size.getRows()) / 2;
position = new TerminalPosition(left, top);
}
}
window.setPosition(position);
window.setDecoratedSize(size);
}