protected TWidget(final TWidget parent, final boolean enabled) {
this.enabled = enabled;
this.parent = parent;
- this.window = parent.window;
children = new ArrayList<TWidget>();
- // Do not add TStatusBars, they are drawn by TApplication.
- if (this instanceof TStatusBar) {
- // NOP
- } else {
+ if (parent != null) {
+ this.window = parent.window;
parent.addChild(this);
}
}
protected TWidget(final TWidget parent, final boolean enabled,
final int x, final int y, final int width, final int height) {
+ if (width < 0) {
+ throw new IllegalArgumentException("width cannot be negative");
+ }
+ if (height < 0) {
+ throw new IllegalArgumentException("height cannot be negative");
+ }
+
this.enabled = enabled;
this.parent = parent;
- this.window = parent.window;
children = new ArrayList<TWidget>();
- // Do not add TStatusBars, they are drawn by TApplication.
- if (this instanceof TStatusBar) {
- // NOP
- } else {
+ if (parent != null) {
+ this.window = parent.window;
parent.addChild(this);
}
protected final void setupForTWindow(final TWindow window,
final int x, final int y, final int width, final int height) {
+ if (width < 0) {
+ throw new IllegalArgumentException("width cannot be negative");
+ }
+ if (height < 0) {
+ throw new IllegalArgumentException("height cannot be negative");
+ }
+
this.parent = window;
this.window = window;
this.x = x;
* @param keypress keystroke event
*/
public void onKeypress(final TKeypressEvent keypress) {
+ assert (parent != null);
if ((children.size() == 0)
|| (this instanceof TTreeView)
return children;
}
+ /**
+ * Remove this widget from its parent container. close() will be called
+ * before it is removed.
+ */
+ public final void remove() {
+ remove(true);
+ }
+
+ /**
+ * Remove this widget from its parent container.
+ *
+ * @param doClose if true, call the close() method before removing the
+ * child
+ */
+ public final void remove(final boolean doClose) {
+ if (parent != null) {
+ parent.remove(this, doClose);
+ }
+ }
+
+ /**
+ * Remove a child widget from this container.
+ *
+ * @param child the child widget to remove
+ * @param doClose if true, call the close() method before removing the
+ * child
+ */
+ public final void remove(final TWidget child, final boolean doClose) {
+ if (!children.contains(child)) {
+ throw new IndexOutOfBoundsException("child widget is not in " +
+ "list of children of this parent");
+ }
+ if (doClose) {
+ child.close();
+ }
+ children.remove(child);
+ child.parent = null;
+ }
+
+ /**
+ * Set this widget's parent to a different widget.
+ *
+ * @param newParent new parent widget
+ * @param doClose if true, call the close() method before removing the
+ * child from its existing parent widget
+ */
+ public final void setParent(final TWidget newParent,
+ final boolean doClose) {
+
+ if (parent != null) {
+ parent.remove(this, doClose);
+ }
+ assert (parent == null);
+ window = newParent.window;
+ newParent.addChild(this);
+ }
+
+ /**
+ * Set this widget's window to a specific window. Parent must already be
+ * null. Having a null parent with a specified window is only used
+ * within Jexer by TStatusBar because TApplication routes events directly
+ * to it and calls its draw() method. Any other non-parented widgets
+ * will require similar special case functionality to receive events or
+ * be drawn to screen.
+ *
+ * @param window the window to use
+ */
+ public final void setWindow(final TWindow window) {
+
+ if (parent != null) {
+ throw new IllegalArgumentException("Cannot have different " +
+ "windows for parent and child");
+ }
+ this.window = window;
+ }
+
+ /**
+ * Remove a child widget from this container, and all of its children
+ * recursively from their parent containers.
+ *
+ * @param child the child widget to remove
+ * @param doClose if true, call the close() method before removing each
+ * child
+ */
+ public final void removeAll(final TWidget child, final boolean doClose) {
+ remove(child, doClose);
+ for (TWidget w: child.children) {
+ child.removeAll(w, doClose);
+ }
+ }
+
/**
* Get active flag.
*
return false;
}
+ assert (window != null);
+
// If cursor is out of my window's bounds, it is not visible.
if ((getCursorAbsoluteX() >= window.getAbsoluteX()
+ window.getWidth() - 1)
if (parent == this) {
return active;
}
- return (active && parent.isAbsoluteActive());
+ return (active && (parent == null ? true : parent.isAbsoluteActive()));
}
/**
}
}
+ /**
+ * Make this widget the active child of its parent. Note that this is
+ * not final since TWindow overrides activate().
+ */
+ public void activate() {
+ if (enabled) {
+ if (parent != null) {
+ parent.activate(this);
+ }
+ }
+ }
+
/**
* Switch the active widget with the next in the tab order.
*
return;
}
+ assert (parent != null);
+
// If there is only one child, make it active if it is enabled.
if (children.size() == 1) {
if (children.get(0).enabled == true) {
* @param ch character to draw
* @param attr attributes to use (bold, foreColor, backColor)
*/
- protected final void putAll(final char ch, final CellAttributes attr) {
+ protected final void putAll(final int ch, final CellAttributes attr) {
getScreen().putAll(ch, attr);
}
* @param ch character to draw
* @param attr attributes to use (bold, foreColor, backColor)
*/
- protected final void putCharXY(final int x, final int y, final char ch,
+ protected final void putCharXY(final int x, final int y, final int ch,
final CellAttributes attr) {
getScreen().putCharXY(x, y, ch, attr);
* @param y row coordinate. 0 is the top-most row.
* @param ch character to draw
*/
- protected final void putCharXY(final int x, final int y, final char ch) {
+ protected final void putCharXY(final int x, final int y, final int ch) {
getScreen().putCharXY(x, y, ch);
}
* @param attr attributes to use (bold, foreColor, backColor)
*/
protected final void vLineXY(final int x, final int y, final int n,
- final char ch, final CellAttributes attr) {
+ final int ch, final CellAttributes attr) {
getScreen().vLineXY(x, y, n, ch, attr);
}
* @param attr attributes to use (bold, foreColor, backColor)
*/
protected final void hLineXY(final int x, final int y, final int n,
- final char ch, final CellAttributes attr) {
+ final int ch, final CellAttributes attr) {
getScreen().hLineXY(x, y, n, ch, attr);
}
* @param values the possible values for the box, shown in the drop-down
* @param valuesIndex the initial index in values, or -1 for no default
* value
- * @param valuesHeight the height of the values drop-down when it is
- * visible
+ * @param maxValuesHeight the maximum height of the values drop-down when
+ * it is visible
* @param updateAction action to call when a new value is selected from
* the list or enter is pressed in the edit field
* @return the new combobox
*/
public final TComboBox addComboBox(final int x, final int y,
final int width, final List<String> values, final int valuesIndex,
- final int valuesHeight, final TAction updateAction) {
+ final int maxValuesHeight, final TAction updateAction) {
return new TComboBox(this, x, y, width, values, valuesIndex,
- valuesHeight, updateAction);
+ maxValuesHeight, updateAction);
}
/**
moveAction);
}
+ /**
+ * Convenience function to add a list to this container/window.
+ *
+ * @param strings list of strings to show. This is allowed to be null
+ * and set later with setList() or by subclasses.
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param width width of text area
+ * @param height height of text area
+ * @param enterAction action to perform when an item is selected
+ * @param moveAction action to perform when the user navigates to a new
+ * item with arrow/page keys
+ * @param singleClickAction action to perform when the user clicks on an
+ * item
+ */
+ public TList addList(final List<String> strings, final int x,
+ final int y, final int width, final int height,
+ final TAction enterAction, final TAction moveAction,
+ final TAction singleClickAction) {
+
+ return new TList(this, strings, x, y, width, height, enterAction,
+ moveAction, singleClickAction);
+ }
+
+
/**
* Convenience function to add an image to this container/window.
*