thdltools/Jskad
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Improved handling of backspace based on my understanding

Browse source 
of various known Java bugs. Those who mess around with
backspace take note of the following:

The Java bug database has several related bugs concerning the treatment
of backspace. Here I adopt solution based on fix of bug 4402080:
Evaluation  The text components now key off of KEY_TYPED with a keyChar == 8 to do the
deletion. The motivation for this can be found in bug 4256901.
xxxxx@xxxxx 2001-01-05
This commit is contained in:
eg3p 2003-04-07 16:41:49 +00:00
parent e7684dedcd
commit 275cf9d79d
1 changed files with 9 additions and 42 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

47
source/org/thdl/tib/input/DuffPane.java
View file

@ -43,7 +43,7 @@ import org.thdl.util.StatusBar;
* @author Edward Garrett, Tibetan and Himalayan Digital Library * @author Edward Garrett, Tibetan and Himalayan Digital Library
* @version 1.0 * @version 1.0
*/ */
public class DuffPane extends TibetanPane implements FocusListener, KeyListener { public class DuffPane extends TibetanPane implements FocusListener {
/** /**
* The status bar to update with messages about the current input mode. * The status bar to update with messages about the current input mode.
* Are we expecting a vowel? a subscript? et cetera. * Are we expecting a vowel? a subscript? et cetera.
@ -294,8 +294,13 @@ public class DuffPane extends TibetanPane implements FocusListener, KeyListener
caret = getCaret(); caret = getCaret();
addKeyListener(this);
addFocusListener(this); addFocusListener(this);
addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent kev) {
if (kev.isActionKey() || kev.getKeyCode() == KeyEvent.VK_BACK_SPACE)
initKeyboard();
}
});
setupKeymap(); setupKeymap();
} }
@ -1137,44 +1142,6 @@ public void paste(int offset) {
isCutAndPasteEnabled = false; isCutAndPasteEnabled = false;
} }
/**
* Required by contract with the KeyListener interface,
* this method initializes the keyboard
* when an action key is pressed. It leaves the
* behavior up to the Keymap of this DuffPane.
*/
public void keyPressed(KeyEvent e) {
// FIXME: exceptions thrown here do not cause the program to fail, even in development mode.
if (e.isActionKey())
initKeyboard();
}
/**
* Required by contract with the KeyListener interface,
* this method does nothing.
*
* @param e a KeyEvent
*/
public void keyTyped(KeyEvent e) { }
/**
* Required by contract with the Key Listener interface,
* this method initializes the keyboard if the user presses
* backspace.
*
* @param e the KeyEvent
*/
public void keyReleased(KeyEvent e) {
// FIXME: exceptions thrown here do not cause the program to fail, even in development mode.
if (e.getKeyCode() == KeyEvent.VK_BACK_SPACE)
initKeyboard();
}
private void processRomanChar(String key, MutableAttributeSet attSet) { private void processRomanChar(String key, MutableAttributeSet attSet) {
switch (key.charAt(0)) { switch (key.charAt(0)) {
case KeyEvent.VK_BACK_SPACE: case KeyEvent.VK_BACK_SPACE: