下面列出了怎么用java.awt.peer.TextComponentPeer的API类实例代码及写法,或者点击链接到github查看源代码。
/**
* Sets the position of the text insertion caret.
* The caret position is constrained to be between 0
* and the last character of the text, inclusive.
* If the passed-in value is greater than this range,
* the value is set to the last character (or 0 if
* the <code>TextComponent</code> contains no text)
* and no error is returned. If the passed-in value is
* less than 0, an <code>IllegalArgumentException</code>
* is thrown.
*
* @param position the position of the text insertion caret
* @exception IllegalArgumentException if <code>position</code>
* is less than zero
* @since JDK1.1
*/
public synchronized void setCaretPosition(int position) {
if (position < 0) {
throw new IllegalArgumentException("position less than zero.");
}
int maxposition = getText().length();
if (position > maxposition) {
position = maxposition;
}
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
peer.setCaretPosition(position);
} else {
select(position, position);
}
}
/**
* Writes default serializable fields to stream. Writes
* a list of serializable TextListener(s) as optional data.
* The non-serializable TextListener(s) are detected and
* no attempt is made to serialize them.
*
* @serialData Null terminated sequence of zero or more pairs.
* A pair consists of a String and Object.
* The String indicates the type of object and
* is one of the following :
* textListenerK indicating and TextListener object.
*
* @see AWTEventMulticaster#save(ObjectOutputStream, String, EventListener)
* @see java.awt.Component#textListenerK
*/
private void writeObject(java.io.ObjectOutputStream s)
throws IOException
{
// Serialization support. Since the value of the fields
// selectionStart, selectionEnd, and text aren't necessarily
// up to date, we sync them up with the peer before serializing.
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
selectionStart = peer.getSelectionStart();
selectionEnd = peer.getSelectionEnd();
}
s.defaultWriteObject();
AWTEventMulticaster.save(s, textListenerK, textListener);
s.writeObject(null);
}
/**
* Writes default serializable fields to stream. Writes
* a list of serializable TextListener(s) as optional data.
* The non-serializable TextListener(s) are detected and
* no attempt is made to serialize them.
*
* @serialData Null terminated sequence of zero or more pairs.
* A pair consists of a String and Object.
* The String indicates the type of object and
* is one of the following :
* textListenerK indicating and TextListener object.
*
* @see AWTEventMulticaster#save(ObjectOutputStream, String, EventListener)
* @see java.awt.Component#textListenerK
*/
private void writeObject(java.io.ObjectOutputStream s)
throws IOException
{
// Serialization support. Since the value of the fields
// selectionStart, selectionEnd, and text aren't necessarily
// up to date, we sync them up with the peer before serializing.
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
selectionStart = peer.getSelectionStart();
selectionEnd = peer.getSelectionEnd();
}
s.defaultWriteObject();
AWTEventMulticaster.save(s, textListenerK, textListener);
s.writeObject(null);
}
/**
* Sets the position of the text insertion caret.
* The caret position is constrained to be between 0
* and the last character of the text, inclusive.
* If the passed-in value is greater than this range,
* the value is set to the last character (or 0 if
* the <code>TextComponent</code> contains no text)
* and no error is returned. If the passed-in value is
* less than 0, an <code>IllegalArgumentException</code>
* is thrown.
*
* @param position the position of the text insertion caret
* @exception IllegalArgumentException if <code>position</code>
* is less than zero
* @since JDK1.1
*/
public synchronized void setCaretPosition(int position) {
if (position < 0) {
throw new IllegalArgumentException("position less than zero.");
}
int maxposition = getText().length();
if (position > maxposition) {
position = maxposition;
}
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
peer.setCaretPosition(position);
} else {
select(position, position);
}
}
/**
* Sets the position of the text insertion caret.
* The caret position is constrained to be between 0
* and the last character of the text, inclusive.
* If the passed-in value is greater than this range,
* the value is set to the last character (or 0 if
* the <code>TextComponent</code> contains no text)
* and no error is returned. If the passed-in value is
* less than 0, an <code>IllegalArgumentException</code>
* is thrown.
*
* @param position the position of the text insertion caret
* @exception IllegalArgumentException if <code>position</code>
* is less than zero
* @since JDK1.1
*/
public synchronized void setCaretPosition(int position) {
if (position < 0) {
throw new IllegalArgumentException("position less than zero.");
}
int maxposition = getText().length();
if (position > maxposition) {
position = maxposition;
}
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
peer.setCaretPosition(position);
} else {
select(position, position);
}
}
/**
* Sets the position of the text insertion caret.
* The caret position is constrained to be between 0
* and the last character of the text, inclusive.
* If the passed-in value is greater than this range,
* the value is set to the last character (or 0 if
* the {@code TextComponent} contains no text)
* and no error is returned. If the passed-in value is
* less than 0, an {@code IllegalArgumentException}
* is thrown.
*
* @param position the position of the text insertion caret
* @exception IllegalArgumentException if {@code position}
* is less than zero
* @since 1.1
*/
public synchronized void setCaretPosition(int position) {
if (position < 0) {
throw new IllegalArgumentException("position less than zero.");
}
int maxposition = getText().length();
if (position > maxposition) {
position = maxposition;
}
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
peer.setCaretPosition(position);
} else {
select(position, position);
}
}
/**
* Sets the position of the text insertion caret.
* The caret position is constrained to be between 0
* and the last character of the text, inclusive.
* If the passed-in value is greater than this range,
* the value is set to the last character (or 0 if
* the <code>TextComponent</code> contains no text)
* and no error is returned. If the passed-in value is
* less than 0, an <code>IllegalArgumentException</code>
* is thrown.
*
* @param position the position of the text insertion caret
* @exception IllegalArgumentException if <code>position</code>
* is less than zero
* @since JDK1.1
*/
public synchronized void setCaretPosition(int position) {
if (position < 0) {
throw new IllegalArgumentException("position less than zero.");
}
int maxposition = getText().length();
if (position > maxposition) {
position = maxposition;
}
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
peer.setCaretPosition(position);
} else {
select(position, position);
}
}
/**
* Returns the position of the text insertion caret.
* The caret position is constrained to be between 0
* and the last character of the text, inclusive.
* If the text or caret have not been set, the default
* caret position is 0.
*
* @return the position of the text insertion caret
* @see #setCaretPosition(int)
* @since JDK1.1
*/
public synchronized int getCaretPosition() {
TextComponentPeer peer = (TextComponentPeer)this.peer;
int position = 0;
if (peer != null) {
position = peer.getCaretPosition();
} else {
position = selectionStart;
}
int maxposition = getText().length();
if (position > maxposition) {
position = maxposition;
}
return position;
}
/**
* Sets the position of the text insertion caret.
* The caret position is constrained to be between 0
* and the last character of the text, inclusive.
* If the passed-in value is greater than this range,
* the value is set to the last character (or 0 if
* the <code>TextComponent</code> contains no text)
* and no error is returned. If the passed-in value is
* less than 0, an <code>IllegalArgumentException</code>
* is thrown.
*
* @param position the position of the text insertion caret
* @exception IllegalArgumentException if <code>position</code>
* is less than zero
* @since JDK1.1
*/
public synchronized void setCaretPosition(int position) {
if (position < 0) {
throw new IllegalArgumentException("position less than zero.");
}
int maxposition = getText().length();
if (position > maxposition) {
position = maxposition;
}
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
peer.setCaretPosition(position);
} else {
select(position, position);
}
}
/**
* Writes default serializable fields to stream. Writes
* a list of serializable TextListener(s) as optional data.
* The non-serializable TextListener(s) are detected and
* no attempt is made to serialize them.
*
* @serialData Null terminated sequence of zero or more pairs.
* A pair consists of a String and Object.
* The String indicates the type of object and
* is one of the following :
* textListenerK indicating and TextListener object.
*
* @see AWTEventMulticaster#save(ObjectOutputStream, String, EventListener)
* @see java.awt.Component#textListenerK
*/
private void writeObject(java.io.ObjectOutputStream s)
throws IOException
{
// Serialization support. Since the value of the fields
// selectionStart, selectionEnd, and text aren't necessarily
// up to date, we sync them up with the peer before serializing.
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
selectionStart = peer.getSelectionStart();
selectionEnd = peer.getSelectionEnd();
}
s.defaultWriteObject();
AWTEventMulticaster.save(s, textListenerK, textListener);
s.writeObject(null);
}
/**
* Writes default serializable fields to stream. Writes
* a list of serializable TextListener(s) as optional data.
* The non-serializable TextListener(s) are detected and
* no attempt is made to serialize them.
*
* @serialData Null terminated sequence of zero or more pairs.
* A pair consists of a String and Object.
* The String indicates the type of object and
* is one of the following :
* textListenerK indicating and TextListener object.
*
* @see AWTEventMulticaster#save(ObjectOutputStream, String, EventListener)
* @see java.awt.Component#textListenerK
*/
private void writeObject(java.io.ObjectOutputStream s)
throws IOException
{
// Serialization support. Since the value of the fields
// selectionStart, selectionEnd, and text aren't necessarily
// up to date, we sync them up with the peer before serializing.
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
selectionStart = peer.getSelectionStart();
selectionEnd = peer.getSelectionEnd();
}
s.defaultWriteObject();
AWTEventMulticaster.save(s, textListenerK, textListener);
s.writeObject(null);
}
/**
* Sets the position of the text insertion caret.
* The caret position is constrained to be between 0
* and the last character of the text, inclusive.
* If the passed-in value is greater than this range,
* the value is set to the last character (or 0 if
* the <code>TextComponent</code> contains no text)
* and no error is returned. If the passed-in value is
* less than 0, an <code>IllegalArgumentException</code>
* is thrown.
*
* @param position the position of the text insertion caret
* @exception IllegalArgumentException if <code>position</code>
* is less than zero
* @since JDK1.1
*/
public synchronized void setCaretPosition(int position) {
if (position < 0) {
throw new IllegalArgumentException("position less than zero.");
}
int maxposition = getText().length();
if (position > maxposition) {
position = maxposition;
}
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
peer.setCaretPosition(position);
} else {
select(position, position);
}
}
/**
* Writes default serializable fields to stream. Writes
* a list of serializable TextListener(s) as optional data.
* The non-serializable TextListener(s) are detected and
* no attempt is made to serialize them.
*
* @serialData Null terminated sequence of zero or more pairs.
* A pair consists of a String and Object.
* The String indicates the type of object and
* is one of the following :
* textListenerK indicating and TextListener object.
*
* @see AWTEventMulticaster#save(ObjectOutputStream, String, EventListener)
* @see java.awt.Component#textListenerK
*/
private void writeObject(java.io.ObjectOutputStream s)
throws IOException
{
// Serialization support. Since the value of the fields
// selectionStart, selectionEnd, and text aren't necessarily
// up to date, we sync them up with the peer before serializing.
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
selectionStart = peer.getSelectionStart();
selectionEnd = peer.getSelectionEnd();
}
s.defaultWriteObject();
AWTEventMulticaster.save(s, textListenerK, textListener);
s.writeObject(null);
}
/**
* Returns the position of the text insertion caret.
* The caret position is constrained to be between 0
* and the last character of the text, inclusive.
* If the text or caret have not been set, the default
* caret position is 0.
*
* @return the position of the text insertion caret
* @see #setCaretPosition(int)
* @since JDK1.1
*/
public synchronized int getCaretPosition() {
TextComponentPeer peer = (TextComponentPeer)this.peer;
int position = 0;
if (peer != null) {
position = peer.getCaretPosition();
} else {
position = selectionStart;
}
int maxposition = getText().length();
if (position > maxposition) {
position = maxposition;
}
return position;
}
/**
* Writes default serializable fields to stream. Writes
* a list of serializable TextListener(s) as optional data.
* The non-serializable TextListener(s) are detected and
* no attempt is made to serialize them.
*
* @serialData Null terminated sequence of zero or more pairs.
* A pair consists of a String and Object.
* The String indicates the type of object and
* is one of the following :
* textListenerK indicating and TextListener object.
*
* @see AWTEventMulticaster#save(ObjectOutputStream, String, EventListener)
* @see java.awt.Component#textListenerK
*/
private void writeObject(java.io.ObjectOutputStream s)
throws IOException
{
// Serialization support. Since the value of the fields
// selectionStart, selectionEnd, and text aren't necessarily
// up to date, we sync them up with the peer before serializing.
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
selectionStart = peer.getSelectionStart();
selectionEnd = peer.getSelectionEnd();
}
s.defaultWriteObject();
AWTEventMulticaster.save(s, textListenerK, textListener);
s.writeObject(null);
}
/**
* Returns the position of the text insertion caret.
* The caret position is constrained to be between 0
* and the last character of the text, inclusive.
* If the text or caret have not been set, the default
* caret position is 0.
*
* @return the position of the text insertion caret
* @see #setCaretPosition(int)
* @since JDK1.1
*/
public synchronized int getCaretPosition() {
TextComponentPeer peer = (TextComponentPeer)this.peer;
int position = 0;
if (peer != null) {
position = peer.getCaretPosition();
} else {
position = selectionStart;
}
int maxposition = getText().length();
if (position > maxposition) {
position = maxposition;
}
return position;
}
/**
* Writes default serializable fields to stream. Writes
* a list of serializable TextListener(s) as optional data.
* The non-serializable TextListener(s) are detected and
* no attempt is made to serialize them.
*
* @serialData Null terminated sequence of zero or more pairs.
* A pair consists of a String and Object.
* The String indicates the type of object and
* is one of the following :
* textListenerK indicating and TextListener object.
*
* @see AWTEventMulticaster#save(ObjectOutputStream, String, EventListener)
* @see java.awt.Component#textListenerK
*/
private void writeObject(java.io.ObjectOutputStream s)
throws IOException
{
// Serialization support. Since the value of the fields
// selectionStart, selectionEnd, and text aren't necessarily
// up to date, we sync them up with the peer before serializing.
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
selectionStart = peer.getSelectionStart();
selectionEnd = peer.getSelectionEnd();
}
s.defaultWriteObject();
AWTEventMulticaster.save(s, textListenerK, textListener);
s.writeObject(null);
}
/**
* Sets the position of the text insertion caret.
* The caret position is constrained to be between 0
* and the last character of the text, inclusive.
* If the passed-in value is greater than this range,
* the value is set to the last character (or 0 if
* the <code>TextComponent</code> contains no text)
* and no error is returned. If the passed-in value is
* less than 0, an <code>IllegalArgumentException</code>
* is thrown.
*
* @param position the position of the text insertion caret
* @exception IllegalArgumentException if <code>position</code>
* is less than zero
* @since JDK1.1
*/
public synchronized void setCaretPosition(int position) {
if (position < 0) {
throw new IllegalArgumentException("position less than zero.");
}
int maxposition = getText().length();
if (position > maxposition) {
position = maxposition;
}
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
peer.setCaretPosition(position);
} else {
select(position, position);
}
}
/**
* Writes default serializable fields to stream. Writes
* a list of serializable TextListener(s) as optional data.
* The non-serializable TextListener(s) are detected and
* no attempt is made to serialize them.
*
* @serialData Null terminated sequence of zero or more pairs.
* A pair consists of a String and Object.
* The String indicates the type of object and
* is one of the following :
* textListenerK indicating and TextListener object.
*
* @see AWTEventMulticaster#save(ObjectOutputStream, String, EventListener)
* @see java.awt.Component#textListenerK
*/
private void writeObject(java.io.ObjectOutputStream s)
throws IOException
{
// Serialization support. Since the value of the fields
// selectionStart, selectionEnd, and text aren't necessarily
// up to date, we sync them up with the peer before serializing.
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
selectionStart = peer.getSelectionStart();
selectionEnd = peer.getSelectionEnd();
}
s.defaultWriteObject();
AWTEventMulticaster.save(s, textListenerK, textListener);
s.writeObject(null);
}
/**
* Returns the text that is presented by this text component.
* By default, this is an empty string.
*
* @return the value of this <code>TextComponent</code>
* @see java.awt.TextComponent#setText
*/
public synchronized String getText() {
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
}
return text;
}
/**
* Removes the <code>TextComponent</code>'s peer.
* The peer allows us to modify the appearance of the
* <code>TextComponent</code> without changing its
* functionality.
*/
public void removeNotify() {
synchronized (getTreeLock()) {
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
selectionStart = peer.getSelectionStart();
selectionEnd = peer.getSelectionEnd();
}
super.removeNotify();
}
}
/**
* Returns the text that is presented by this text component.
* By default, this is an empty string.
*
* @return the value of this <code>TextComponent</code>
* @see java.awt.TextComponent#setText
*/
public synchronized String getText() {
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
}
return text;
}
/**
* Removes the <code>TextComponent</code>'s peer.
* The peer allows us to modify the appearance of the
* <code>TextComponent</code> without changing its
* functionality.
*/
public void removeNotify() {
synchronized (getTreeLock()) {
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
selectionStart = peer.getSelectionStart();
selectionEnd = peer.getSelectionEnd();
}
super.removeNotify();
}
}
/**
* Sets the text that is presented by this
* text component to be the specified text.
* @param t the new text;
* if this parameter is <code>null</code> then
* the text is set to the empty string ""
* @see java.awt.TextComponent#getText
*/
public synchronized void setText(String t) {
boolean skipTextEvent = (text == null || text.isEmpty())
&& (t == null || t.isEmpty());
text = (t != null) ? t : "";
TextComponentPeer peer = (TextComponentPeer)this.peer;
// Please note that we do not want to post an event
// if TextArea.setText() or TextField.setText() replaces an empty text
// by an empty text, that is, if component's text remains unchanged.
if (peer != null && !skipTextEvent) {
peer.setText(text);
}
}
/**
* Gets the end position of the selected text in
* this text component.
* @return the end position of the selected text
* @see java.awt.TextComponent#setSelectionEnd
* @see java.awt.TextComponent#getSelectionStart
*/
public synchronized int getSelectionEnd() {
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
selectionEnd = peer.getSelectionEnd();
}
return selectionEnd;
}
/**
* Removes the {@code TextComponent}'s peer.
* The peer allows us to modify the appearance of the
* {@code TextComponent} without changing its
* functionality.
*/
public void removeNotify() {
synchronized (getTreeLock()) {
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
selectionStart = peer.getSelectionStart();
selectionEnd = peer.getSelectionEnd();
}
super.removeNotify();
}
}
/**
* Selects all the text in this text component.
* @see java.awt.TextComponent#select
*/
public synchronized void selectAll() {
this.selectionStart = 0;
this.selectionEnd = getText().length();
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
peer.select(selectionStart, selectionEnd);
}
}
/**
* Returns the text that is presented by this text component.
* By default, this is an empty string.
*
* @return the value of this {@code TextComponent}
* @see java.awt.TextComponent#setText
*/
public synchronized String getText() {
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
text = peer.getText();
}
return text;
}
/**
* Selects all the text in this text component.
* @see java.awt.TextComponent#select
*/
public synchronized void selectAll() {
this.selectionStart = 0;
this.selectionEnd = getText().length();
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
peer.select(selectionStart, selectionEnd);
}
}
/**
* Selects all the text in this text component.
* @see java.awt.TextComponent#select
*/
public synchronized void selectAll() {
this.selectionStart = 0;
this.selectionEnd = getText().length();
TextComponentPeer peer = (TextComponentPeer)this.peer;
if (peer != null) {
peer.select(selectionStart, selectionEnd);
}
}