-/**
+/*
* Jexer - Java Text User Interface
*
- * License: LGPLv3 or later
- *
- * This module is licensed under the GNU Lesser General Public License
- * Version 3. Please see the file "COPYING" in this directory for more
- * information about the GNU Lesser General Public License Version 3.
+ * The MIT License (MIT)
*
- * Copyright (C) 2015 Kevin Lamonte
+ * Copyright (C) 2017 Kevin Lamonte
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 3 of
- * the License, or (at your option) any later version.
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
*
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see
- * http://www.gnu.org/licenses/, or write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*
* @author Kevin Lamonte [kevin.lamonte@gmail.com]
* @version 1
*/
package jexer;
+import java.io.IOException;
import java.util.List;
-import java.util.LinkedList;
+import java.util.ArrayList;
import jexer.bits.ColorTheme;
import jexer.event.TCommandEvent;
*/
public abstract class TWidget implements Comparable<TWidget> {
+ // ------------------------------------------------------------------------
+ // Common widget attributes -----------------------------------------------
+ // ------------------------------------------------------------------------
+
/**
* Every widget has a parent widget that it may be "contained" in. For
* example, a TWindow might contain several TTextFields, or a TComboBox
return parent;
}
- /**
- * Backdoor access for TWindow's constructor. ONLY TWindow USES THIS.
- *
- * @param window the top-level window
- * @param x column relative to parent
- * @param y row relative to parent
- * @param width width of window
- * @param height height of window
- */
- protected final void setupForTWindow(final TWindow window,
- final int x, final int y, final int width, final int height) {
-
- this.parent = window;
- this.window = window;
- this.x = x;
- this.y = y;
- this.width = width;
- this.height = height;
- }
-
- /**
- * Get this TWidget's parent TApplication.
- *
- * @return the parent TApplication
- */
- public TApplication getApplication() {
- return window.getApplication();
- }
-
- /**
- * Get the Screen.
- *
- * @return the Screen
- */
- public Screen getScreen() {
- return window.getScreen();
- }
-
/**
* Child widgets that this widget contains.
*/
*
* @return if true, this widget will receive events
*/
- public final boolean getActive() {
+ public final boolean isActive() {
return active;
}
*
* @return if true, this widget can be tabbed to or receive events
*/
- public final boolean getEnabled() {
+ public final boolean isEnabled() {
return enabled;
}
/**
* If true, this widget has a cursor.
*/
- private boolean hasCursor = false;
+ private boolean cursorVisible = false;
/**
* Set visible cursor flag.
*
- * @param hasCursor if true, this widget has a cursor
+ * @param cursorVisible if true, this widget has a cursor
*/
- public final void setHasCursor(final boolean hasCursor) {
- this.hasCursor = hasCursor;
+ public final void setCursorVisible(final boolean cursorVisible) {
+ this.cursorVisible = cursorVisible;
}
/**
*
* @return if true, this widget has a visible cursor
*/
- public final boolean visibleCursor() {
- return hasCursor;
+ public final boolean isCursorVisible() {
+ return cursorVisible;
}
/**
this.cursorY = cursorY;
}
+ // ------------------------------------------------------------------------
+ // TApplication integration -----------------------------------------------
+ // ------------------------------------------------------------------------
+
/**
- * Comparison operator sorts on tabOrder for TWidgets and z for TWindows.
+ * Get this TWidget's parent TApplication.
*
- * @param that another TWidget or TWindow instance
+ * @return the parent TApplication
+ */
+ public TApplication getApplication() {
+ return window.getApplication();
+ }
+
+ /**
+ * Get the Screen.
+ *
+ * @return the Screen
+ */
+ public Screen getScreen() {
+ return window.getScreen();
+ }
+
+ /**
+ * Comparison operator. For various subclasses it sorts on:
+ * <ul>
+ * <li>tabOrder for TWidgets</li>
+ * <li>z for TWindows</li>
+ * <li>text for TTreeItems</li>
+ * </ul>
+ *
+ * @param that another TWidget, TWindow, or TTreeItem instance
* @return difference between this.tabOrder and that.tabOrder, or
- * difference between this.z and that.z
+ * difference between this.z and that.z, or String.compareTo(text)
*/
- @Override
public final int compareTo(final TWidget that) {
if ((this instanceof TWindow)
&& (that instanceof TWindow)
) {
return (((TWindow) this).getZ() - ((TWindow) that).getZ());
}
+ if ((this instanceof TTreeItem)
+ && (that instanceof TTreeItem)
+ ) {
+ return (((TTreeItem) this).getText().compareTo(
+ ((TTreeItem) that).getText()));
+ }
return (this.tabOrder - that.tabOrder);
}
* @return true if this widget is active and all of its parents are
* active.
*/
- public final boolean getAbsoluteActive() {
+ public final boolean isAbsoluteActive() {
if (parent == this) {
return active;
}
- return (active && parent.getAbsoluteActive());
+ return (active && parent.isAbsoluteActive());
}
/**
* @return absolute screen column number for the cursor's X position
*/
public final int getCursorAbsoluteX() {
- assert (hasCursor);
+ assert (cursorVisible);
return getAbsoluteX() + cursorX;
}
* @return absolute screen row number for the cursor's Y position
*/
public final int getCursorAbsoluteY() {
- assert (hasCursor);
+ assert (cursorVisible);
return getAbsoluteY() + cursorY;
}
assert (getScreen() != null);
Screen screen = getScreen();
+ // Special case: TStatusBar is drawn by TApplication, not anything
+ // else.
+ if (this instanceof TStatusBar) {
+ return;
+ }
+
screen.setClipRight(width);
screen.setClipBottom(height);
}
}
+ // ------------------------------------------------------------------------
+ // Constructors -----------------------------------------------------------
+ // ------------------------------------------------------------------------
+
/**
* Default constructor for subclasses.
*/
protected TWidget() {
- children = new LinkedList<TWidget>();
+ children = new ArrayList<TWidget>();
}
/**
this.enabled = enabled;
this.parent = parent;
this.window = parent.window;
- children = new LinkedList<TWidget>();
+ children = new ArrayList<TWidget>();
parent.addChild(this);
}
this.enabled = enabled;
this.parent = parent;
this.window = parent.window;
- children = new LinkedList<TWidget>();
+ children = new ArrayList<TWidget>();
parent.addChild(this);
this.x = x;
this.height = height;
}
+ /**
+ * Backdoor access for TWindow's constructor. ONLY TWindow USES THIS.
+ *
+ * @param window the top-level window
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param width width of window
+ * @param height height of window
+ */
+ protected final void setupForTWindow(final TWindow window,
+ final int x, final int y, final int width, final int height) {
+
+ this.parent = window;
+ this.window = window;
+ this.x = x;
+ this.y = y;
+ this.width = width;
+ this.height = height;
+ }
+
+ // ------------------------------------------------------------------------
+ // General behavior -------------------------------------------------------
+ // ------------------------------------------------------------------------
+
/**
* Add a child widget to my list of children. We set its tabOrder to 0
* and increment the tabOrder of all other children.
return this;
}
+ // ------------------------------------------------------------------------
+ // Event handlers ---------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Check if a mouse press/release event coordinate is contained in this
+ * widget.
+ *
+ * @param mouse a mouse-based event
+ * @return whether or not a mouse click would be sent to this widget
+ */
+ public final boolean mouseWouldHit(final TMouseEvent mouse) {
+
+ if (!enabled) {
+ return false;
+ }
+
+ if ((mouse.getAbsoluteX() >= getAbsoluteX())
+ && (mouse.getAbsoluteX() < getAbsoluteX() + width)
+ && (mouse.getAbsoluteY() >= getAbsoluteY())
+ && (mouse.getAbsoluteY() < getAbsoluteY() + height)
+ ) {
+ return true;
+ }
+ return false;
+ }
+
/**
* Method that subclasses can override to handle keystrokes.
*
public void onKeypress(final TKeypressEvent keypress) {
if ((children.size() == 0)
- // TODO
- // || (cast(TTreeView)this)
+ || (this instanceof TTreeView)
|| (this instanceof TText)
) {
for (TWidget widget: children) {
if (widget instanceof TButton) {
TButton button = (TButton) widget;
- if (button.getEnabled()
- && !keypress.getKey().getIsKey()
- && keypress.getKey().getAlt()
- && !keypress.getKey().getCtrl()
+ if (button.isEnabled()
+ && !keypress.getKey().isFnKey()
+ && keypress.getKey().isAlt()
+ && !keypress.getKey().isCtrl()
&& (Character.toLowerCase(button.getMnemonic().getShortcut())
- == Character.toLowerCase(keypress.getKey().getCh()))
+ == Character.toLowerCase(keypress.getKey().getChar()))
) {
widget.handleEvent(new TKeypressEvent(kbEnter));
return;
}
- /**
- * Check if a mouse press/release event coordinate is contained in this
- * widget.
- *
- * @param mouse a mouse-based event
- * @return whether or not a mouse click would be sent to this widget
- */
- public final boolean mouseWouldHit(final TMouseEvent mouse) {
-
- if (!enabled) {
- return false;
- }
-
- if ((mouse.getAbsoluteX() >= getAbsoluteX())
- && (mouse.getAbsoluteX() < getAbsoluteX() + width)
- && (mouse.getAbsoluteY() >= getAbsoluteY())
- && (mouse.getAbsoluteY() < getAbsoluteY() + height)
- ) {
- return true;
- }
- return false;
- }
+ // ------------------------------------------------------------------------
+ // Other TWidget constructors ---------------------------------------------
+ // ------------------------------------------------------------------------
/**
* Convenience function to add a label to this container/window.
updateAction);
}
+ /**
+ * Convenience function to add a tree view to this container/window.
+ *
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param width width of tree view
+ * @param height height of tree view
+ * @return the new tree view
+ */
+ public final TTreeView addTreeView(final int x, final int y,
+ final int width, final int height) {
+
+ return new TTreeView(this, x, y, width, height);
+ }
+
+ /**
+ * Convenience function to add a tree view to this container/window.
+ *
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param width width of tree view
+ * @param height height of tree view
+ * @param action action to perform when an item is selected
+ * @return the new tree view
+ */
+ public final TTreeView addTreeView(final int x, final int y,
+ final int width, final int height, final TAction action) {
+
+ return new TTreeView(this, x, y, width, height, action);
+ }
+
+ /**
+ * Convenience function to spawn a file open box.
+ *
+ * @param path path of selected file
+ * @return the result of the new file open box
+ * @throws IOException if a java.io operation throws
+ */
+ public final String fileOpenBox(final String path) throws IOException {
+ return getApplication().fileOpenBox(path);
+ }
+
+ /**
+ * Convenience function to spawn a file open box.
+ *
+ * @param path path of selected file
+ * @param type one of the Type constants
+ * @return the result of the new file open box
+ * @throws IOException if a java.io operation throws
+ */
+ public final String fileOpenBox(final String path,
+ final TFileOpenBox.Type type) throws IOException {
+
+ return getApplication().fileOpenBox(path, type);
+ }
+ /**
+ * Convenience function to add a directory list to this container/window.
+ *
+ * @param path directory path, must be a directory
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param width width of text area
+ * @param height height of text area
+ * @return the new directory list
+ */
+ public final TDirectoryList addDirectoryList(final String path, final int x,
+ final int y, final int width, final int height) {
+
+ return new TDirectoryList(this, path, x, y, width, height, null);
+ }
+
+ /**
+ * Convenience function to add a directory list to this container/window.
+ *
+ * @param path directory path, must be a directory
+ * @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 action action to perform when an item is selected
+ * @return the new directory list
+ */
+ public final TDirectoryList addDirectoryList(final String path, final int x,
+ final int y, final int width, final int height, final TAction action) {
+
+ return new TDirectoryList(this, path, x, y, width, height, action);
+ }
+
+ /**
+ * Convenience function to add a directory list to this container/window.
+ *
+ * @param strings list of strings to show
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param width width of text area
+ * @param height height of text area
+ * @return the new directory list
+ */
+ public final TList addList(final List<String> strings, final int x,
+ final int y, final int width, final int height) {
+
+ return new TList(this, strings, x, y, width, height, null);
+ }
+
+ /**
+ * Convenience function to add a directory list to this container/window.
+ *
+ * @param strings list of strings to show
+ * @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
+ * @return the new directory list
+ */
+ public final TList addList(final List<String> strings, final int x,
+ final int y, final int width, final int height,
+ final TAction enterAction) {
+
+ return new TList(this, strings, x, y, width, height, enterAction);
+ }
+
+ /**
+ * Convenience function to add a directory list to this container/window.
+ *
+ * @param strings list of strings to show
+ * @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
+ * @return the new directory list
+ */
+ public final TList addList(final List<String> strings, final int x,
+ final int y, final int width, final int height,
+ final TAction enterAction, final TAction moveAction) {
+
+ return new TList(this, strings, x, y, width, height, enterAction,
+ moveAction);
+ }
+
}