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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.pivot.wtk.skin.terra;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.Toolkit;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.awt.font.LineMetrics;
import java.awt.geom.Area;
import java.awt.geom.Rectangle2D;
import org.apache.pivot.collections.Dictionary;
import org.apache.pivot.text.CharSequenceCharacterIterator;
import org.apache.pivot.util.Vote;
import org.apache.pivot.wtk.ApplicationContext;
import org.apache.pivot.wtk.Bounds;
import org.apache.pivot.wtk.Component;
import org.apache.pivot.wtk.Cursor;
import org.apache.pivot.wtk.Dimensions;
import org.apache.pivot.wtk.FocusTraversalDirection;
import org.apache.pivot.wtk.GraphicsUtilities;
import org.apache.pivot.wtk.Insets;
import org.apache.pivot.wtk.Keyboard;
import org.apache.pivot.wtk.Mouse;
import org.apache.pivot.wtk.Orientation;
import org.apache.pivot.wtk.Platform;
import org.apache.pivot.wtk.TextInput;
import org.apache.pivot.wtk.TextInputContentListener;
import org.apache.pivot.wtk.TextInputListener;
import org.apache.pivot.wtk.TextInputSelectionListener;
import org.apache.pivot.wtk.Theme;
import org.apache.pivot.wtk.Window;
import org.apache.pivot.wtk.Keyboard.KeyCode;
import org.apache.pivot.wtk.Keyboard.Modifier;
import org.apache.pivot.wtk.skin.ComponentSkin;
import org.apache.pivot.wtk.validation.Validator;
/**
* Text input skin.
*/
public class TerraTextInputSkin extends ComponentSkin implements TextInput.Skin,
TextInputListener, TextInputContentListener, TextInputSelectionListener {
private class BlinkCaretCallback implements Runnable {
@Override
public void run() {
caretOn = !caretOn;
if (caret != null) {
TextInput textInput = (TextInput)getComponent();
textInput.repaint(caret.x, caret.y, caret.width, caret.height);
}
}
}
private class ScrollSelectionCallback implements Runnable {
@Override
public void run() {
TextInput textInput = (TextInput)getComponent();
int selectionStart = textInput.getSelectionStart();
int selectionLength = textInput.getSelectionLength();
int selectionEnd = selectionStart + selectionLength - 1;
switch (scrollDirection) {
case FORWARD: {
if (selectionEnd < textInput.getCharacterCount() - 1) {
selectionEnd++;
textInput.setSelection(selectionStart, selectionEnd - selectionStart + 1);
scrollCharacterToVisible(selectionEnd);
}
break;
}
case BACKWARD: {
if (selectionStart > 0) {
selectionStart--;
textInput.setSelection(selectionStart, selectionEnd - selectionStart + 1);
scrollCharacterToVisible(selectionStart);
}
break;
}
default: {
throw new RuntimeException();
}
}
}
}
private GlyphVector glyphVector = null;
private int anchor = -1;
private Rectangle caret = new Rectangle();
private Rectangle selection = null;
private int scrollLeft = 0;
private boolean caretOn = true;
private FocusTraversalDirection scrollDirection = null;
private BlinkCaretCallback blinkCaretCallback = new BlinkCaretCallback();
private ApplicationContext.ScheduledCallback scheduledBlinkCaretCallback = null;
private ScrollSelectionCallback scrollSelectionCallback = new ScrollSelectionCallback();
private ApplicationContext.ScheduledCallback scheduledScrollSelectionCallback = null;
private Font font;
private Color color;
private Color disabledColor;
private Color promptColor;
private Color backgroundColor;
private Color disabledBackgroundColor;
private Color invalidColor;
private Color invalidBackgroundColor;
private Color borderColor;
private Color disabledBorderColor;
private Color selectionColor;
private Color selectionBackgroundColor;
private Color inactiveSelectionColor;
private Color inactiveSelectionBackgroundColor;
private Color bevelColor;
private Color disabledBevelColor;
private Color invalidBevelColor;
private Insets padding;
private Dimensions averageCharacterSize;
private static final int SCROLL_RATE = 50;
private static final char BULLET = 0x2022;
public TerraTextInputSkin() {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setFont(theme.getFont());
color = theme.getColor(1);
promptColor = theme.getColor(7);
disabledColor = theme.getColor(7);
backgroundColor = theme.getColor(11);
disabledBackgroundColor = theme.getColor(10);
invalidColor = theme.getColor(4);
invalidBackgroundColor = theme.getColor(22);
borderColor = theme.getColor(7);
disabledBorderColor = theme.getColor(7);
padding = new Insets(2);
selectionColor = theme.getColor(4);
selectionBackgroundColor = theme.getColor(14);
inactiveSelectionColor = theme.getColor(1);
inactiveSelectionBackgroundColor = theme.getColor(9);
bevelColor = TerraTheme.darken(backgroundColor);
disabledBevelColor = disabledBackgroundColor;
invalidBevelColor = TerraTheme.darken(invalidBackgroundColor);
}
@Override
public void install(Component component) {
super.install(component);
TextInput textInput = (TextInput)component;
textInput.getTextInputListeners().add(this);
textInput.getTextInputContentListeners().add(this);
textInput.getTextInputSelectionListeners().add(this);
textInput.setCursor(Cursor.TEXT);
updateSelection();
}
@Override
public int getPreferredWidth(int height) {
TextInput textInput = (TextInput)getComponent();
int textSize = textInput.getTextSize();
return averageCharacterSize.width * textSize + (padding.left + padding.right) + 2;
}
@Override
public int getPreferredHeight(int width) {
return averageCharacterSize.height + (padding.top + padding.bottom) + 2;
}
@Override
public Dimensions getPreferredSize() {
return new Dimensions(getPreferredWidth(-1), getPreferredHeight(-1));
}
@Override
public int getBaseline(int width, int height) {
FontRenderContext fontRenderContext = Platform.getFontRenderContext();
LineMetrics lm = font.getLineMetrics("", fontRenderContext);
float ascent = lm.getAscent();
float textHeight = lm.getHeight();
int baseline = Math.round((height - textHeight) / 2 + ascent);
return baseline;
}
@Override
public void layout() {
TextInput textInput = (TextInput)getComponent();
glyphVector = null;
int n = textInput.getCharacterCount();
if (n > 0) {
CharSequence characters;
if (textInput.isPassword()) {
StringBuilder passwordBuilder = new StringBuilder(n);
for (int i = 0; i < n; i++) {
passwordBuilder.append(BULLET);
}
characters = passwordBuilder;
} else {
characters = textInput.getCharacters();
}
CharSequenceCharacterIterator ci = new CharSequenceCharacterIterator(characters);
FontRenderContext fontRenderContext = Platform.getFontRenderContext();
glyphVector = font.createGlyphVector(fontRenderContext, ci);
Rectangle2D textBounds = glyphVector.getLogicalBounds();
int textWidth = (int)textBounds.getWidth();
int width = getWidth();
if (textWidth - scrollLeft + padding.left + 1 < width - padding.right - 1) {
// The right edge of the text is less than the right inset; align
// the text's right edge with the inset
scrollLeft = Math.max(textWidth + (padding.left + padding.right + 2) - width, 0);
} else {
// Scroll lead selection to visible
int selectionStart = textInput.getSelectionStart();
if (selectionStart <= n
&& textInput.isFocused()) {
scrollCharacterToVisible(selectionStart);
}
}
}
updateSelection();
showCaret(textInput.isFocused()
&& textInput.getSelectionLength() == 0);
}
@Override
public void paint(Graphics2D graphics) {
TextInput textInput = (TextInput)getComponent();
int width = getWidth();
int height = getHeight();
Color backgroundColor;
Color borderColor;
Color bevelColor;
if (textInput.isEnabled()) {
if (textInput.isTextValid()) {
backgroundColor = this.backgroundColor;
bevelColor = this.bevelColor;
} else {
backgroundColor = invalidBackgroundColor;
bevelColor = invalidBevelColor;
}
borderColor = this.borderColor;
} else {
backgroundColor = disabledBackgroundColor;
borderColor = disabledBorderColor;
bevelColor = disabledBevelColor;
}
graphics.setStroke(new BasicStroke());
// Paint the background
graphics.setColor(backgroundColor);
graphics.fillRect(0, 0, width, height);
// Paint the bevel
graphics.setColor(bevelColor);
GraphicsUtilities.drawLine(graphics, 0, 0, width, Orientation.HORIZONTAL);
// Paint the content
FontRenderContext fontRenderContext = Platform.getFontRenderContext();
LineMetrics lm = font.getLineMetrics("", fontRenderContext);
float ascent = lm.getAscent();
float textHeight = lm.getHeight();
String prompt = textInput.getPrompt();
Color caretColor;
if (glyphVector == null
&& prompt != null) {
graphics.setFont(font);
graphics.setColor(promptColor);
graphics.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
fontRenderContext.getAntiAliasingHint());
graphics.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
fontRenderContext.getFractionalMetricsHint());
graphics.drawString(prompt, padding.left - scrollLeft + 1,
(height - textHeight) / 2 + ascent);
caretColor = color;
} else {
boolean textValid = textInput.isTextValid();
Color color;
if (textInput.isEnabled()) {
if (!textValid) {
color = invalidColor;
} else {
color = this.color;
}
} else {
color = disabledColor;
}
caretColor = color;
if (glyphVector != null) {
graphics.setFont(font);
if (selection == null) {
// Paint the text
graphics.setColor(color);
graphics.drawGlyphVector(glyphVector, padding.left - scrollLeft + 1,
(height - textHeight) / 2 + ascent);
} else {
// Paint the unselected text
Area unselectedArea = new Area();
unselectedArea.add(new Area(new Rectangle(0, 0, width, height)));
unselectedArea.subtract(new Area(selection));
Graphics2D textGraphics = (Graphics2D)graphics.create();
textGraphics.setColor(color);
textGraphics.clip(unselectedArea);
textGraphics.drawGlyphVector(glyphVector, padding.left - scrollLeft + 1,
(height - textHeight) / 2 + ascent);
textGraphics.dispose();
// Paint the selection
Color selectionColor;
Color selectionBackgroundColor;
if (textInput.isFocused()) {
selectionColor = this.selectionColor;
selectionBackgroundColor = this.selectionBackgroundColor;
} else {
selectionColor = inactiveSelectionColor;
selectionBackgroundColor = inactiveSelectionBackgroundColor;
}
graphics.setColor(selectionBackgroundColor);
graphics.fill(selection);
Graphics2D selectedTextGraphics = (Graphics2D)graphics.create();
selectedTextGraphics.setColor(selectionColor);
selectedTextGraphics.clip(selection.getBounds());
selectedTextGraphics.drawGlyphVector(glyphVector, padding.left - scrollLeft + 1,
(height - textHeight) / 2 + ascent);
selectedTextGraphics.dispose();
}
}
}
// Paint the caret
if (selection == null
&& caretOn
&& textInput.isFocused()) {
graphics.setColor(caretColor);
graphics.fill(caret);
}
// Paint the border
graphics.setColor(borderColor);
GraphicsUtilities.drawRect(graphics, 0, 0, width, height);
}
public int getInsertionPoint(int x) {
int offset = -1;
if (glyphVector == null) {
offset = 0;
} else {
// Translate to glyph coordinates
x -= (padding.left - scrollLeft + 1);
Rectangle2D textBounds = glyphVector.getLogicalBounds();
if (x < 0) {
offset = 0;
} else if (x > textBounds.getWidth()) {
offset = glyphVector.getNumGlyphs();
} else {
int n = glyphVector.getNumGlyphs();
int i = 0;
while (i < n) {
Shape glyphBounds = glyphVector.getGlyphLogicalBounds(i);
Rectangle2D glyphBounds2D = glyphBounds.getBounds2D();
float glyphX = (float)glyphBounds2D.getX();
float glyphWidth = (float)glyphBounds2D.getWidth();
if (x >= glyphX
&& x < glyphX + glyphWidth) {
if (x - glyphX > glyphWidth / 2) {
// The user clicked on the right half of the character; select
// the next character
i++;
}
offset = i;
break;
}
i++;
}
}
}
return offset;
}
public Bounds getCharacterBounds(int index) {
Bounds characterBounds = null;
if (glyphVector != null) {
int x, width;
if (index < glyphVector.getNumGlyphs()) {
Shape glyphBounds = glyphVector.getGlyphLogicalBounds(index);
Rectangle2D glyphBounds2D = glyphBounds.getBounds2D();
x = (int)Math.floor(glyphBounds2D.getX());
width = (int)Math.ceil(glyphBounds2D.getWidth());
} else {
// This is the terminator character
Rectangle2D glyphVectorBounds = glyphVector.getLogicalBounds();
x = (int)Math.floor(glyphVectorBounds.getWidth());
width = 0;
}
characterBounds = new Bounds(x + padding.left - scrollLeft + 1, padding.top + 1,
width, getHeight() - (padding.top + padding.bottom + 2));
}
return characterBounds;
}
private void setScrollLeft(int scrollLeft) {
this.scrollLeft = scrollLeft;
updateSelection();
repaintComponent();
}
private void scrollCharacterToVisible(int offset) {
int width = getWidth();
Bounds characterBounds = getCharacterBounds(offset);
if (characterBounds != null) {
int glyphX = characterBounds.x - (padding.left + 1) + scrollLeft;
if (characterBounds.x < padding.left + 1) {
setScrollLeft(glyphX);
} else if (characterBounds.x + characterBounds.width > width - (padding.right + 1)) {
setScrollLeft(glyphX + (padding.left + padding.right + 2) + characterBounds.width - width);
}
}
}
public Font getFont() {
return font;
}
public void setFont(Font font) {
if (font == null) {
throw new IllegalArgumentException("font is null.");
}
this.font = font;
int missingGlyphCode = font.getMissingGlyphCode();
FontRenderContext fontRenderContext = Platform.getFontRenderContext();
GlyphVector missingGlyphVector = font.createGlyphVector(fontRenderContext,
new int[] {missingGlyphCode});
Rectangle2D textBounds = missingGlyphVector.getLogicalBounds();
Rectangle2D maxCharBounds = font.getMaxCharBounds(fontRenderContext);
averageCharacterSize = new Dimensions((int)Math.ceil(textBounds.getWidth()),
(int)Math.ceil(maxCharBounds.getHeight()));
invalidateComponent();
}
public final void setFont(String font) {
if (font == null) {
throw new IllegalArgumentException("font is null.");
}
setFont(decodeFont(font));
}
public final void setFont(Dictionary font) {
if (font == null) {
throw new IllegalArgumentException("font is null.");
}
setFont(Theme.deriveFont(font));
}
public Color getColor() {
return color;
}
public void setColor(Color color) {
if (color == null) {
throw new IllegalArgumentException("color is null.");
}
this.color = color;
repaintComponent();
}
public final void setColor(String color) {
if (color == null) {
throw new IllegalArgumentException("color is null.");
}
setColor(GraphicsUtilities.decodeColor(color));
}
public final void setColor(int color) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setColor(theme.getColor(color));
}
public Color getPromptColor() {
return promptColor;
}
public void setPromptColor(Color promptColor) {
if (promptColor == null) {
throw new IllegalArgumentException("promptColor is null.");
}
this.promptColor = promptColor;
repaintComponent();
}
public final void setPromptColor(String promptColor) {
if (promptColor == null) {
throw new IllegalArgumentException("promptColor is null.");
}
setPromptColor(GraphicsUtilities.decodeColor(promptColor));
}
public final void setPromptColor(int promptColor) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setPromptColor(theme.getColor(promptColor));
}
public Color getDisabledColor() {
return disabledColor;
}
public void setDisabledColor(Color disabledColor) {
if (disabledColor == null) {
throw new IllegalArgumentException("disabledColor is null.");
}
this.disabledColor = disabledColor;
repaintComponent();
}
public final void setDisabledColor(String disabledColor) {
if (disabledColor == null) {
throw new IllegalArgumentException("disabledColor is null.");
}
setDisabledColor(GraphicsUtilities.decodeColor(disabledColor));
}
public final void setDisabledColor(int disabledColor) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setDisabledColor(theme.getColor(disabledColor));
}
public Color getBackgroundColor() {
return backgroundColor;
}
public void setBackgroundColor(Color backgroundColor) {
if (backgroundColor == null) {
throw new IllegalArgumentException("backgroundColor is null.");
}
this.backgroundColor = backgroundColor;
bevelColor = TerraTheme.darken(backgroundColor);
repaintComponent();
}
public final void setBackgroundColor(String backgroundColor) {
if (backgroundColor == null) {
throw new IllegalArgumentException("backgroundColor is null.");
}
setBackgroundColor(GraphicsUtilities.decodeColor(backgroundColor));
}
public final void setBackgroundColor(int color) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setBackgroundColor(theme.getColor(color));
}
public Color getInvalidColor() {
return invalidColor;
}
public void setInvalidColor(Color color) {
if (color == null) {
throw new IllegalArgumentException("color is null.");
}
this.invalidColor = color;
repaintComponent();
}
public final void setInvalidColor(String color) {
if (color == null) {
throw new IllegalArgumentException("color is null.");
}
setInvalidColor(GraphicsUtilities.decodeColor(color));
}
public final void setInvalidColor(int color) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setInvalidColor(theme.getColor(color));
}
public Color getInvalidBackgroundColor() {
return invalidBackgroundColor;
}
public void setInvalidBackgroundColor(Color color) {
if (color == null) {
throw new IllegalArgumentException("color is null.");
}
this.invalidBackgroundColor = color;
invalidBevelColor = TerraTheme.darken(color);
repaintComponent();
}
public final void setInvalidBackgroundColor(String color) {
if (color == null) {
throw new IllegalArgumentException("invalidBackgroundColor is null.");
}
setInvalidBackgroundColor(GraphicsUtilities.decodeColor(color));
}
public final void setInvalidBackgroundColor(int color) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setInvalidBackgroundColor(theme.getColor(color));
}
public Color getDisabledBackgroundColor() {
return disabledBackgroundColor;
}
public void setDisabledBackgroundColor(Color disabledBackgroundColor) {
if (disabledBackgroundColor == null) {
throw new IllegalArgumentException("disabledBackgroundColor is null.");
}
this.disabledBackgroundColor = disabledBackgroundColor;
disabledBevelColor = disabledBackgroundColor;
repaintComponent();
}
public final void setDisabledBackgroundColor(String disabledBackgroundColor) {
if (disabledBackgroundColor == null) {
throw new IllegalArgumentException("disabledBackgroundColor is null.");
}
setDisabledBackgroundColor(GraphicsUtilities.decodeColor(disabledBackgroundColor));
}
public final void setDisabledBackgroundColor(int color) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setDisabledBackgroundColor(theme.getColor(color));
}
public Color getBorderColor() {
return borderColor;
}
public void setBorderColor(Color borderColor) {
if (borderColor == null) {
throw new IllegalArgumentException("borderColor is null.");
}
this.borderColor = borderColor;
repaintComponent();
}
public final void setBorderColor(String borderColor) {
if (borderColor == null) {
throw new IllegalArgumentException("borderColor is null.");
}
setBorderColor(GraphicsUtilities.decodeColor(borderColor));
}
public final void setBorderColor(int color) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setBorderColor(theme.getColor(color));
}
public Color getDisabledBorderColor() {
return disabledBorderColor;
}
public void setDisabledBorderColor(Color disabledBorderColor) {
if (disabledBorderColor == null) {
throw new IllegalArgumentException("disabledBorderColor is null.");
}
this.disabledBorderColor = disabledBorderColor;
repaintComponent();
}
public final void setDisabledBorderColor(String disabledBorderColor) {
if (disabledBorderColor == null) {
throw new IllegalArgumentException("disabledBorderColor is null.");
}
setDisabledBorderColor(GraphicsUtilities.decodeColor(disabledBorderColor));
}
public final void setDisabledBorderColor(int color) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setDisabledBorderColor(theme.getColor(color));
}
public Color getSelectionColor() {
return selectionColor;
}
public void setSelectionColor(Color selectionColor) {
if (selectionColor == null) {
throw new IllegalArgumentException("selectionColor is null.");
}
this.selectionColor = selectionColor;
repaintComponent();
}
public final void setSelectionColor(String selectionColor) {
if (selectionColor == null) {
throw new IllegalArgumentException("selectionColor is null.");
}
setSelectionColor(GraphicsUtilities.decodeColor(selectionColor));
}
public final void setSelectionColor(int color) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setSelectionColor(theme.getColor(color));
}
public Color getSelectionBackgroundColor() {
return selectionBackgroundColor;
}
public void setSelectionBackgroundColor(Color selectionBackgroundColor) {
if (selectionBackgroundColor == null) {
throw new IllegalArgumentException("selectionBackgroundColor is null.");
}
this.selectionBackgroundColor = selectionBackgroundColor;
repaintComponent();
}
public final void setSelectionBackgroundColor(String selectionBackgroundColor) {
if (selectionBackgroundColor == null) {
throw new IllegalArgumentException("selectionBackgroundColor is null.");
}
setSelectionBackgroundColor(GraphicsUtilities.decodeColor(selectionBackgroundColor));
}
public final void setSelectionBackgroundColor(int color) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setSelectionBackgroundColor(theme.getColor(color));
}
public Color getInactiveSelectionColor() {
return inactiveSelectionColor;
}
public void setInactiveSelectionColor(Color inactiveSelectionColor) {
if (inactiveSelectionColor == null) {
throw new IllegalArgumentException("inactiveSelectionColor is null.");
}
this.inactiveSelectionColor = inactiveSelectionColor;
repaintComponent();
}
public final void setInactiveSelectionColor(String inactiveSelectionColor) {
if (inactiveSelectionColor == null) {
throw new IllegalArgumentException("inactiveSelectionColor is null.");
}
setInactiveSelectionColor(GraphicsUtilities.decodeColor(inactiveSelectionColor));
}
public final void setInactiveSelectionColor(int color) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setInactiveSelectionColor(theme.getColor(color));
}
public Color getInactiveSelectionBackgroundColor() {
return inactiveSelectionBackgroundColor;
}
public void setInactiveSelectionBackgroundColor(Color inactiveSelectionBackgroundColor) {
if (inactiveSelectionBackgroundColor == null) {
throw new IllegalArgumentException("inactiveSelectionBackgroundColor is null.");
}
this.inactiveSelectionBackgroundColor = inactiveSelectionBackgroundColor;
repaintComponent();
}
public final void setInactiveSelectionBackgroundColor(String inactiveSelectionBackgroundColor) {
if (inactiveSelectionBackgroundColor == null) {
throw new IllegalArgumentException("inactiveSelectionBackgroundColor is null.");
}
setInactiveSelectionBackgroundColor(GraphicsUtilities.decodeColor(inactiveSelectionBackgroundColor));
}
public final void setInactiveSelectionBackgroundColor(int color) {
TerraTheme theme = (TerraTheme)Theme.getTheme();
setInactiveSelectionBackgroundColor(theme.getColor(color));
}
public Insets getPadding() {
return padding;
}
public void setPadding(Insets padding) {
if (padding == null) {
throw new IllegalArgumentException("padding is null.");
}
this.padding = padding;
invalidateComponent();
}
public final void setPadding(Dictionary padding) {
if (padding == null) {
throw new IllegalArgumentException("padding is null.");
}
setPadding(new Insets(padding));
}
public final void setPadding(int padding) {
setPadding(new Insets(padding));
}
public final void setPadding(Number padding) {
if (padding == null) {
throw new IllegalArgumentException("padding is null.");
}
setPadding(padding.intValue());
}
public final void setPadding(String padding) {
if (padding == null) {
throw new IllegalArgumentException("padding is null.");
}
setPadding(Insets.decode(padding));
}
@Override
public boolean mouseMove(Component component, int x, int y) {
boolean consumed = super.mouseMove(component, x, y);
if (Mouse.getCapturer() == component) {
TextInput textInput = (TextInput)getComponent();
int width = getWidth();
if (x >= 0
&& x < width) {
// Stop the scroll selection timer
if (scheduledScrollSelectionCallback != null) {
scheduledScrollSelectionCallback.cancel();
scheduledScrollSelectionCallback = null;
}
scrollDirection = null;
int offset = getInsertionPoint(x);
if (offset != -1) {
// Select the range
if (offset > anchor) {
textInput.setSelection(anchor, offset - anchor);
} else {
textInput.setSelection(offset, anchor - offset);
}
}
} else {
if (scheduledScrollSelectionCallback == null) {
scrollDirection = (x < 0) ? FocusTraversalDirection.BACKWARD : FocusTraversalDirection.FORWARD;
scheduledScrollSelectionCallback =
ApplicationContext.scheduleRecurringCallback(scrollSelectionCallback,
SCROLL_RATE);
// Run the callback once now to scroll the selection immediately
scrollSelectionCallback.run();
}
}
} else {
if (Mouse.isPressed(Mouse.Button.LEFT)
&& Mouse.getCapturer() == null
&& anchor != -1) {
// Capture the mouse so we can select text
Mouse.capture(component);
}
}
return consumed;
}
@Override
public boolean mouseDown(Component component, Mouse.Button button, int x, int y) {
boolean consumed = super.mouseDown(component, button, x, y);
if (button == Mouse.Button.LEFT) {
TextInput textInput = (TextInput)getComponent();
anchor = getInsertionPoint(x);
if (anchor != -1) {
if (Keyboard.isPressed(Keyboard.Modifier.SHIFT)) {
// Select the range
int selectionStart = textInput.getSelectionStart();
if (anchor > selectionStart) {
textInput.setSelection(selectionStart, anchor - selectionStart);
} else {
textInput.setSelection(anchor, selectionStart - anchor);
}
} else {
// Move the caret to the insertion point
textInput.setSelection(anchor, 0);
consumed = true;
}
}
// Set focus to the text input
textInput.requestFocus();
}
return consumed;
}
@Override
public boolean mouseUp(Component component, Mouse.Button button, int x, int y) {
boolean consumed = super.mouseUp(component, button, x, y);
if (Mouse.getCapturer() == component) {
// Stop the scroll selection timer
if (scheduledScrollSelectionCallback != null) {
scheduledScrollSelectionCallback.cancel();
scheduledScrollSelectionCallback = null;
}
Mouse.release();
}
anchor = -1;
return consumed;
}
@Override
public boolean mouseClick(Component component, Mouse.Button button, int x, int y, int count) {
if (button == Mouse.Button.LEFT
&& count > 1) {
TextInput textInput = (TextInput)getComponent();
textInput.selectAll();
}
return super.mouseClick(component, button, x, y, count);
}
@Override
public boolean keyTyped(Component component, char character) {
boolean consumed = super.keyTyped(component, character);
// Ignore characters in the control range and the ASCII delete
// character as well as meta key presses
if (character > 0x1F
&& character != 0x7F
&& !Keyboard.isPressed(Keyboard.Modifier.META)) {
TextInput textInput = (TextInput)getComponent();
int selectionLength = textInput.getSelectionLength();
if (textInput.getCharacterCount() - selectionLength + 1 > textInput.getMaximumLength()) {
Toolkit.getDefaultToolkit().beep();
} else {
// NOTE We explicitly call getSelectionStart() twice here in case the remove
// event is vetoed
textInput.removeText(textInput.getSelectionStart(), selectionLength);
textInput.insertText(Character.toString(character), textInput.getSelectionStart());
}
}
return consumed;
}
/**
* {@link KeyCode#DELETE DELETE} Delete the character after the caret or
* the entire selection if there is one.
* {@link KeyCode#BACKSPACE BACKSPACE} Delete the character before the
* caret or the entire selection if there is one.
* {@link KeyCode#HOME HOME} Move the caret to the beginning of the text.
*
* {@link KeyCode#LEFT LEFT} + {@link Modifier#META META} Move the caret
* to the beginning of the text.
* {@link KeyCode#HOME HOME} + {@link Modifier#SHIFT SHIFT} Select from
* the caret to the beginning of the text.
* {@link KeyCode#LEFT LEFT} + {@link Modifier#META META} +
* {@link Modifier#SHIFT SHIFT} Select from the caret to the beginning of
* the text.
* {@link KeyCode#END END} Move the caret to the end of the text.
* {@link KeyCode#RIGHT RIGHT} + {@link Modifier#META META} Move the caret
* to the end of the text.
* {@link KeyCode#END END} + {@link Modifier#SHIFT SHIFT} Select from the
* caret to the end of the text.
* {@link KeyCode#RIGHT RIGHT} + {@link Modifier#META META} +
* {@link Modifier#SHIFT SHIFT} Select from the caret to the end of the
* text.
* {@link KeyCode#LEFT LEFT} Clear the selection and move the caret back
* by one character.
* {@link KeyCode#LEFT LEFT} + {@link Modifier#SHIFT SHIFT} Add the
* previous character to the selection.
* {@link KeyCode#LEFT LEFT} + {@link Modifier#CTRL CTRL} Clear the
* selection and move the caret to the beginning of the text.
* {@link KeyCode#LEFT LEFT} + {@link Modifier#CTRL CTRL} +
* {@link Modifier#SHIFT SHIFT} Add all preceding text to the selection.
*
* {@link KeyCode#RIGHT RIGHT} Clear the selection and move the caret
* forward by one character.
* {@link KeyCode#RIGHT RIGHT} + {@link Modifier#SHIFT SHIFT} Add the next
* character to the selection.
* {@link KeyCode#RIGHT RIGHT} + {@link Modifier#CTRL CTRL} Clear the
* selection and move the caret to the end of the text.
* {@link KeyCode#RIGHT RIGHT} + {@link Modifier#CTRL CTRL} +
* {@link Modifier#SHIFT SHIFT} Add all subsequent text to the selection.
*
* CommandModifier + {@link KeyCode#A A} Select all.
* CommandModifier + {@link KeyCode#X X} Cut selection to clipboard (if
* not a password TextInput).
* CommandModifier + {@link KeyCode#C C} Copy selection to clipboard (if
* not a password TextInput).
* CommandModifier + {@link KeyCode#V V} Paste from clipboard.
* CommandModifier + {@link KeyCode#Z Z} Undo.
*
* @see Platform#getCommandModifier()
*/
@Override
public boolean keyPressed(Component component, int keyCode, Keyboard.KeyLocation keyLocation) {
boolean consumed = super.keyPressed(component, keyCode, keyLocation);
TextInput textInput = (TextInput)getComponent();
Keyboard.Modifier commandModifier = Platform.getCommandModifier();
Keyboard.Modifier wordNavigationModifier = Platform.getWordNavigationModifier();
if (keyCode == Keyboard.KeyCode.DELETE) {
int index = textInput.getSelectionStart();
if (index < textInput.getCharacterCount()) {
int count = Math.max(textInput.getSelectionLength(), 1);
textInput.removeText(index, count);
consumed = true;
}
} else if (keyCode == Keyboard.KeyCode.BACKSPACE) {
int index = textInput.getSelectionStart();
int count = textInput.getSelectionLength();
if (count == 0
&& index > 0) {
textInput.removeText(index - 1, 1);
consumed = true;
} else {
textInput.removeText(index, count);
consumed = true;
}
} else if (keyCode == Keyboard.KeyCode.HOME
|| (keyCode == Keyboard.KeyCode.LEFT
&& Keyboard.isPressed(Keyboard.Modifier.META))) {
// Move the caret to the beginning of the text
if (Keyboard.isPressed(Keyboard.Modifier.SHIFT)) {
textInput.setSelection(0, textInput.getSelectionStart());
} else {
textInput.setSelection(0, 0);
}
scrollCharacterToVisible(0);
consumed = true;
} else if (keyCode == Keyboard.KeyCode.END
|| (keyCode == Keyboard.KeyCode.RIGHT
&& Keyboard.isPressed(Keyboard.Modifier.META))) {
// Move the caret to the end of the text
int n = textInput.getCharacterCount();
if (Keyboard.isPressed(Keyboard.Modifier.SHIFT)) {
int selectionStart = textInput.getSelectionStart();
textInput.setSelection(selectionStart, n - selectionStart);
} else {
textInput.setSelection(n, 0);
}
scrollCharacterToVisible(n);
consumed = true;
} else if (keyCode == Keyboard.KeyCode.LEFT) {
int selectionStart = textInput.getSelectionStart();
int selectionLength = textInput.getSelectionLength();
if (Keyboard.isPressed(wordNavigationModifier)) {
// Move the caret to the start of the next word to the left
if (selectionStart > 0) {
// Skip over any space immediately to the left
int index = selectionStart;
while (index > 0
&& Character.isWhitespace(textInput.getCharacterAt(index - 1))) {
index--;
}
// Skip over any word-letters to the left
while (index > 0
&& !Character.isWhitespace(textInput.getCharacterAt(index - 1))) {
index--;
}
if (Keyboard.isPressed(Keyboard.Modifier.SHIFT)) {
selectionLength += selectionStart - index;
} else {
selectionLength = 0;
}
selectionStart = index;
}
} else if (Keyboard.isPressed(Keyboard.Modifier.SHIFT)) {
// Add the previous character to the selection
if (selectionStart > 0) {
selectionStart--;
selectionLength++;
}
} else {
// Move the caret back by one character
if (selectionLength == 0
&& selectionStart > 0) {
selectionStart--;
}
// Clear the selection
selectionLength = 0;
}
if (selectionStart >= 0) {
textInput.setSelection(selectionStart, selectionLength);
scrollCharacterToVisible(selectionStart);
consumed = true;
}
} else if (keyCode == Keyboard.KeyCode.RIGHT) {
int selectionStart = textInput.getSelectionStart();
int selectionLength = textInput.getSelectionLength();
if (Keyboard.isPressed(wordNavigationModifier)) {
// Move the caret to the start of the next word to the right
if (selectionStart < textInput.getCharacterCount()) {
int index = selectionStart + selectionLength;
// Skip over any space immediately to the right
while (index < textInput.getCharacterCount()
&& Character.isWhitespace(textInput.getCharacterAt(index))) {
index++;
}
// Skip over any word-letters to the right
while (index < textInput.getCharacterCount()
&& !Character.isWhitespace(textInput.getCharacterAt(index))) {
index++;
}
if (Keyboard.isPressed(Keyboard.Modifier.SHIFT)) {
selectionLength = index - selectionStart;
} else {
selectionStart = index;
selectionLength = 0;
}
}
} else if (Keyboard.isPressed(Keyboard.Modifier.SHIFT)) {
// Add the next character to the selection
selectionLength++;
} else {
// Move the caret forward by one character
if (selectionLength == 0) {
selectionStart++;
} else {
selectionStart += selectionLength;
}
// Clear the selection
selectionLength = 0;
}
if (selectionStart + selectionLength <= textInput.getCharacterCount()) {
textInput.setSelection(selectionStart, selectionLength);
scrollCharacterToVisible(selectionStart + selectionLength);
consumed = true;
}
} else if (Keyboard.isPressed(commandModifier)) {
if (keyCode == Keyboard.KeyCode.A) {
textInput.setSelection(0, textInput.getCharacterCount());
consumed = true;
} else if (keyCode == Keyboard.KeyCode.X) {
if (textInput.isPassword()) {
Toolkit.getDefaultToolkit().beep();
} else {
textInput.cut();
}
consumed = true;
} else if (keyCode == Keyboard.KeyCode.C) {
if (textInput.isPassword()) {
Toolkit.getDefaultToolkit().beep();
} else {
textInput.copy();
}
consumed = true;
} else if (keyCode == Keyboard.KeyCode.V) {
textInput.paste();
consumed = true;
} else if (keyCode == Keyboard.KeyCode.Z) {
if (!Keyboard.isPressed(Keyboard.Modifier.SHIFT)) {
textInput.undo();
}
consumed = true;
}
} else {
consumed = super.keyPressed(component, keyCode, keyLocation);
}
return consumed;
}
// Component state events
@Override
public void enabledChanged(Component component) {
super.enabledChanged(component);
repaintComponent();
}
@Override
public void focusedChanged(Component component, Component obverseComponent) {
super.focusedChanged(component, obverseComponent);
TextInput textInput = (TextInput)component;
Window window = textInput.getWindow();
if (component.isFocused()) {
// If focus was permanently transferred within this window,
// select all
if (obverseComponent == null
|| obverseComponent.getWindow() == window) {
if (Mouse.getCapturer() != component) {
textInput.selectAll();
}
}
if (textInput.getSelectionLength() == 0) {
int selectionStart = textInput.getSelectionStart();
if (selectionStart < textInput.getCharacterCount()) {
scrollCharacterToVisible(selectionStart);
}
showCaret(true);
} else {
showCaret(false);
}
} else {
// If focus was permanently transferred within this window,
// clear the selection
if (obverseComponent == null
|| obverseComponent.getWindow() == window) {
textInput.clearSelection();
}
showCaret(false);
}
repaintComponent();
}
// Text input events
@Override
public void textSizeChanged(TextInput textInput, int previousTextSize) {
invalidateComponent();
}
@Override
public void maximumLengthChanged(TextInput textInput, int previousMaximumLength) {
// No-op
}
@Override
public void passwordChanged(TextInput textInput) {
layout();
repaintComponent();
}
@Override
public void promptChanged(TextInput textInput, String previousPrompt) {
repaintComponent();
}
@Override
public void textValidatorChanged(TextInput textInput, Validator previousValidator) {
repaintComponent();
}
@Override
public void strictValidationChanged(TextInput textInput) {
// No-op
}
@Override
public void textValidChanged(TextInput textInput) {
repaintComponent();
}
// Text input character events
@Override
public Vote previewInsertText(TextInput textInput, CharSequence text, int index) {
Vote vote = Vote.APPROVE;
if (textInput.isStrictValidation()) {
Validator validator = textInput.getValidator();
if (validator != null) {
StringBuilder textBuilder = new StringBuilder();
textBuilder.append(textInput.getText(0, index));
textBuilder.append(text);
textBuilder.append(textInput.getText(index, textInput.getCharacterCount()));
if (!validator.isValid(textBuilder.toString())) {
vote = Vote.DENY;
Toolkit.getDefaultToolkit().beep();
}
}
}
return vote;
}
@Override
public void insertTextVetoed(TextInput textInput, Vote reason) {
// No-op
}
@Override
public void textInserted(TextInput textInput, int index, int count) {
// No-op
}
@Override
public Vote previewRemoveText(TextInput textInput, int index, int count) {
Vote vote = Vote.APPROVE;
if (textInput.isStrictValidation()) {
Validator validator = textInput.getValidator();
if (validator != null) {
StringBuilder textBuilder = new StringBuilder();
textBuilder.append(textInput.getText(0, index));
textBuilder.append(textInput.getText(index + count, textInput.getCharacterCount()));
if (!validator.isValid(textBuilder.toString())) {
vote = Vote.DENY;
Toolkit.getDefaultToolkit().beep();
}
}
}
return vote;
}
@Override
public void removeTextVetoed(TextInput textInput, Vote reason) {
// No-op
}
@Override
public void textRemoved(TextInput textInput, int index, int count) {
// No-op
}
@Override
public void textChanged(TextInput textInput) {
layout();
repaintComponent();
}
// Text input selection events
@Override
public void selectionChanged(TextInput textInput, int previousSelectionStart,
int previousSelectionLength) {
// If the text input is valid, repaint the selection state; otherwise,
// the selection will be updated in layout()
if (textInput.isValid()) {
// Repaint any previous caret bounds
if (caret != null) {
textInput.repaint(caret.x, caret.y, caret.width, caret.height);
}
// Repaint any previous selection bounds
if (selection != null) {
Rectangle bounds = selection.getBounds();
textInput.repaint(bounds.x, bounds.y, bounds.width, bounds.height);
}
if (textInput.getSelectionLength() == 0) {
updateSelection();
showCaret(textInput.isFocused());
} else {
updateSelection();
showCaret(false);
Rectangle bounds = selection.getBounds();
textInput.repaint(bounds.x, bounds.y, bounds.width, bounds.height);
}
}
}
private void updateSelection() {
TextInput textInput = (TextInput)getComponent();
int height = getHeight();
int selectionStart = textInput.getSelectionStart();
int selectionLength = textInput.getSelectionLength();
int n = textInput.getCharacterCount();
Bounds leadingSelectionBounds;
if (selectionStart < n) {
leadingSelectionBounds = getCharacterBounds(selectionStart);
} else {
// The insertion point is after the last character
int x;
if (n == 0) {
x = padding.left - scrollLeft + 1;
} else {
Rectangle2D textBounds = glyphVector.getLogicalBounds();
x = (int)Math.ceil(textBounds.getWidth()) + (padding.left - scrollLeft + 1);
}
int y = padding.top + 1;
leadingSelectionBounds = new Bounds(x, y, 0, height - (padding.top + padding.bottom + 2));
}
caret = leadingSelectionBounds.toRectangle();
caret.width = 1;
if (selectionLength > 0) {
Bounds trailingSelectionBounds = getCharacterBounds(selectionStart
+ selectionLength - 1);
selection = new Rectangle(leadingSelectionBounds.x, leadingSelectionBounds.y,
trailingSelectionBounds.x + trailingSelectionBounds.width - leadingSelectionBounds.x,
trailingSelectionBounds.y + trailingSelectionBounds.height - leadingSelectionBounds.y);
} else {
selection = null;
}
}
public void showCaret(boolean show) {
if (scheduledBlinkCaretCallback != null) {
scheduledBlinkCaretCallback.cancel();
}
if (show) {
caretOn = true;
scheduledBlinkCaretCallback =
ApplicationContext.scheduleRecurringCallback(blinkCaretCallback,
Platform.getCursorBlinkRate());
// Run the callback once now to show the cursor immediately
blinkCaretCallback.run();
} else {
scheduledBlinkCaretCallback = null;
}
}
}