*/
package jexer;
+import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.List;
import java.util.ArrayList;
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)
}
// If I have any buttons on me AND this is an Alt-key that matches
- // its mnemonic, send it an Enter keystroke
+ // its mnemonic, send it an Enter keystroke.
for (TWidget widget: children) {
if (widget instanceof TButton) {
TButton button = (TButton) widget;
}
}
+ // If I have any labels on me AND this is an Alt-key that matches
+ // its mnemonic, call its action.
+ for (TWidget widget: children) {
+ if (widget instanceof TLabel) {
+ TLabel label = (TLabel) widget;
+ if (!keypress.getKey().isFnKey()
+ && keypress.getKey().isAlt()
+ && !keypress.getKey().isCtrl()
+ && (Character.toLowerCase(label.getMnemonic().getShortcut())
+ == Character.toLowerCase(keypress.getKey().getChar()))
+ ) {
+
+ label.dispatch();
+ return;
+ }
+ }
+ }
+
+ // If I have any radiobuttons on me AND this is an Alt-key that
+ // matches its mnemonic, select it and send a Space to it.
+ for (TWidget widget: children) {
+ if (widget instanceof TRadioButton) {
+ TRadioButton button = (TRadioButton) widget;
+ if (button.isEnabled()
+ && !keypress.getKey().isFnKey()
+ && keypress.getKey().isAlt()
+ && !keypress.getKey().isCtrl()
+ && (Character.toLowerCase(button.getMnemonic().getShortcut())
+ == Character.toLowerCase(keypress.getKey().getChar()))
+ ) {
+ activate(widget);
+ widget.onKeypress(new TKeypressEvent(kbSpace));
+ return;
+ }
+ }
+ if (widget instanceof TRadioGroup) {
+ for (TWidget child: widget.getChildren()) {
+ if (child instanceof TRadioButton) {
+ TRadioButton button = (TRadioButton) child;
+ if (button.isEnabled()
+ && !keypress.getKey().isFnKey()
+ && keypress.getKey().isAlt()
+ && !keypress.getKey().isCtrl()
+ && (Character.toLowerCase(button.getMnemonic().getShortcut())
+ == Character.toLowerCase(keypress.getKey().getChar()))
+ ) {
+ activate(widget);
+ widget.activate(child);
+ child.onKeypress(new TKeypressEvent(kbSpace));
+ return;
+ }
+ }
+ }
+ }
+ }
+
+ // If I have any checkboxes on me AND this is an Alt-key that matches
+ // its mnemonic, select it and set it to checked.
+ for (TWidget widget: children) {
+ if (widget instanceof TCheckBox) {
+ TCheckBox checkBox = (TCheckBox) widget;
+ if (checkBox.isEnabled()
+ && !keypress.getKey().isFnKey()
+ && keypress.getKey().isAlt()
+ && !keypress.getKey().isCtrl()
+ && (Character.toLowerCase(checkBox.getMnemonic().getShortcut())
+ == Character.toLowerCase(keypress.getKey().getChar()))
+ ) {
+ activate(checkBox);
+ checkBox.setChecked(true);
+ return;
+ }
+ }
+ }
+
// Dispatch the keypress to an active widget
for (TWidget widget: children) {
if (widget.active) {
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()));
}
/**
// Draw me
draw();
+ assert (visible == true);
// Continue down the chain. Draw the active child last so that it
// is on top.
}
}
+ /**
+ * Reset the tab order of children to match their position in the list.
+ * Available so that subclasses can re-order their widgets if needed.
+ */
+ protected void resetTabOrder() {
+ for (int i = 0; i < children.size(); i++) {
+ children.get(i).tabOrder = i;
+ }
+ }
+
/**
* Switch the active child.
*
return;
}
- if (child != activeChild) {
- if (activeChild != null) {
- activeChild.active = false;
+ if (children.size() == 1) {
+ if (children.get(0).enabled == true) {
+ child.active = true;
+ activeChild = child;
+ }
+ } else {
+ if (child != activeChild) {
+ if (activeChild != null) {
+ activeChild.active = false;
+ }
+ child.active = true;
+ activeChild = child;
}
- child.active = true;
- activeChild = child;
}
}
* isn't enabled, then the next enabled child will be activated.
*/
public final void activate(final int tabOrder) {
- if (activeChild == null) {
+ if (children.size() == 1) {
+ if (children.get(0).enabled == true) {
+ children.get(0).active = true;
+ activeChild = children.get(0);
+ }
return;
}
+
TWidget child = null;
for (TWidget widget: children) {
if ((widget.enabled)
}
}
if ((child != null) && (child != activeChild)) {
- activeChild.active = false;
+ if (activeChild != null) {
+ activeChild.active = false;
+ }
assert (child.enabled);
child.active = true;
activeChild = child;
}
}
+ /**
+ * 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.
*
*/
public final void switchWidget(final boolean forward) {
- // Only switch if there are multiple enabled widgets
- if ((children.size() < 2) || (activeChild == null)) {
+ // No children: do nothing.
+ if (children.size() == 0) {
return;
}
- int tabOrder = activeChild.tabOrder;
+ 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) {
+ activeChild = children.get(0);
+ activeChild.active = true;
+ } else {
+ children.get(0).active = false;
+ activeChild = null;
+ }
+ return;
+ }
+
+ // Two or more children: go forward or backward to the next enabled
+ // child.
+ int tabOrder = 0;
+ if (activeChild != null) {
+ tabOrder = activeChild.tabOrder;
+ }
do {
if (forward) {
tabOrder++;
tabOrder = 0;
}
- if (activeChild.tabOrder == tabOrder) {
+ if (activeChild == null) {
+ if (tabOrder == 0) {
+ // We wrapped around
+ break;
+ }
+ } else if (activeChild.tabOrder == tabOrder) {
// We wrapped around
break;
}
&& !(children.get(tabOrder) instanceof THScroller)
&& !(children.get(tabOrder) instanceof TVScroller));
- assert (children.get(tabOrder).enabled);
+ if (activeChild != null) {
+ assert (children.get(tabOrder).enabled);
- activeChild.active = false;
- children.get(tabOrder).active = true;
- activeChild = children.get(tabOrder);
+ activeChild.active = false;
+ }
+ if (children.get(tabOrder).enabled == true) {
+ children.get(tabOrder).active = true;
+ activeChild = children.get(tabOrder);
+ }
}
/**
* @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);
}
return addLabel(text, x, y, "tlabel");
}
+ /**
+ * Convenience function to add a label to this container/window.
+ *
+ * @param text label
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param action to call when shortcut is pressed
+ * @return the new label
+ */
+ public final TLabel addLabel(final String text, final int x, final int y,
+ final TAction action) {
+
+ return addLabel(text, x, y, "tlabel", action);
+ }
+
/**
* Convenience function to add a label to this container/window.
*
return new TLabel(this, text, x, y, colorKey);
}
+ /**
+ * Convenience function to add a label to this container/window.
+ *
+ * @param text label
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param colorKey ColorTheme key color to use for foreground text.
+ * Default is "tlabel"
+ * @param action to call when shortcut is pressed
+ * @return the new label
+ */
+ public final TLabel addLabel(final String text, final int x, final int y,
+ final String colorKey, final TAction action) {
+
+ return new TLabel(this, text, x, y, colorKey, action);
+ }
+
/**
* Convenience function to add a label to this container/window.
*
return new TLabel(this, text, x, y, colorKey, useWindowBackground);
}
+ /**
+ * Convenience function to add a label to this container/window.
+ *
+ * @param text label
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param colorKey ColorTheme key color to use for foreground text.
+ * Default is "tlabel"
+ * @param useWindowBackground if true, use the window's background color
+ * @param action to call when shortcut is pressed
+ * @return the new label
+ */
+ public final TLabel addLabel(final String text, final int x, final int y,
+ final String colorKey, final boolean useWindowBackground,
+ final TAction action) {
+
+ return new TLabel(this, text, x, y, colorKey, useWindowBackground,
+ action);
+ }
+
/**
* Convenience function to add a button to this container/window.
*
return getApplication().inputBox(title, caption, text);
}
+ /**
+ * Convenience function to spawn an input box.
+ *
+ * @param title window title, will be centered along the top border
+ * @param caption message to display. Use embedded newlines to get a
+ * multi-line box.
+ * @param text initial text to seed the field with
+ * @param type one of the Type constants. Default is Type.OK.
+ * @return the new input box
+ */
+ public final TInputBox inputBox(final String title, final String caption,
+ final String text, final TInputBox.Type type) {
+
+ return getApplication().inputBox(title, caption, text, type);
+ }
+
/**
* Convenience function to add a password text field to this
* container/window.
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.
+ *
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param width number of text cells for width of the image
+ * @param height number of text cells for height of the image
+ * @param image the image to display
+ * @param left left column of the image. 0 is the left-most column.
+ * @param top top row of the image. 0 is the top-most row.
+ */
+ public final TImage addImage(final int x, final int y,
+ final int width, final int height,
+ final BufferedImage image, final int left, final int top) {
+
+ return new TImage(this, x, y, width, height, image, left, top);
+ }
+
+ /**
+ * Convenience function to add an image to this container/window.
+ *
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param width number of text cells for width of the image
+ * @param height number of text cells for height of the image
+ * @param image the image to display
+ * @param left left column of the image. 0 is the left-most column.
+ * @param top top row of the image. 0 is the top-most row.
+ * @param clickAction function to call when mouse is pressed
+ */
+ public final TImage addImage(final int x, final int y,
+ final int width, final int height,
+ final BufferedImage image, final int left, final int top,
+ final TAction clickAction) {
+
+ return new TImage(this, x, y, width, height, image, left, top,
+ clickAction);
+ }
+
+ /**
+ * Convenience function to add an editable 2D data table to this
+ * container/window.
+ *
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param width width of widget
+ * @param height height of widget
+ */
+ public TTableWidget addTable(final int x, final int y, final int width,
+ final int height) {
+
+ return new TTableWidget(this, x, y, width, height);
+ }
+
+ /**
+ * Convenience function to add an editable 2D data table to this
+ * container/window.
+ *
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param width width of widget
+ * @param height height of widget
+ * @param gridColumns number of columns in grid
+ * @param gridRows number of rows in grid
+ */
+ public TTableWidget addTable(final int x, final int y, final int width,
+ final int height, final int gridColumns, final int gridRows) {
+
+ return new TTableWidget(this, x, y, width, height, gridColumns,
+ gridRows);
+ }
+
}
git://git.nikiroo.be / fanfix.git / blobdiff