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291 lines
9.5 KiB
Java
291 lines
9.5 KiB
Java
/*
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* Copyright (c) 2002, 2021, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package javax.swing.plaf.synth;
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import javax.swing.*;
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import javax.swing.text.*;
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import javax.swing.plaf.*;
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import javax.swing.plaf.basic.BasicTextFieldUI;
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import java.awt.*;
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import java.awt.event.FocusEvent;
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import java.awt.event.FocusListener;
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import java.beans.PropertyChangeEvent;
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/**
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* Provides the Synth L&F UI delegate for {@link javax.swing.JTextField}.
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* <p>
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* <strong>Warning:</strong>
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* Serialized objects of this class will not be compatible with
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* future Swing releases. The current serialization support is
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* appropriate for short term storage or RMI between applications running
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* the same version of Swing. As of 1.4, support for long term storage
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* of all JavaBeans
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* has been added to the <code>java.beans</code> package.
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* Please see {@link java.beans.XMLEncoder}.
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*
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* @author Shannon Hickey
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* @since 1.7
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*/
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@SuppressWarnings("serial") // Same-version serialization only
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public class SynthTextFieldUI extends BasicTextFieldUI implements SynthUI {
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private Handler handler = new Handler();
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private SynthStyle style;
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private boolean updateKBAction = true;
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/**
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*
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* Constructs a {@code SynthTextFieldUI}.
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*/
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public SynthTextFieldUI() {}
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/**
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* Creates a UI for a JTextField.
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*
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* @param c the text field
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* @return the UI object
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*/
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public static ComponentUI createUI(JComponent c) {
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return new SynthTextFieldUI();
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}
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private void updateStyle(JTextComponent comp, boolean updateKBAction) {
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SynthContext context = getContext(comp, ENABLED);
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SynthStyle oldStyle = style;
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style = SynthLookAndFeel.updateStyle(context, this);
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if (style != oldStyle) {
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SynthTextFieldUI.updateStyle(comp, context, getPropertyPrefix());
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if (oldStyle != null && updateKBAction) {
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uninstallKeyboardActions();
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installKeyboardActions();
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}
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}
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}
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static void updateStyle(JTextComponent comp, SynthContext context,
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String prefix) {
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SynthStyle style = context.getStyle();
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Color color = comp.getCaretColor();
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if (color == null || color instanceof UIResource) {
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comp.setCaretColor(
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(Color)style.get(context, prefix + ".caretForeground"));
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}
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Color fg = comp.getForeground();
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if (fg == null || fg instanceof UIResource) {
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fg = style.getColorForState(context, ColorType.TEXT_FOREGROUND);
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if (fg != null) {
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comp.setForeground(fg);
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}
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}
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Object ar = style.get(context, prefix + ".caretAspectRatio");
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if (ar instanceof Number) {
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comp.putClientProperty("caretAspectRatio", ar);
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}
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context.setComponentState(SELECTED | FOCUSED);
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Color s = comp.getSelectionColor();
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if (s == null || s instanceof UIResource) {
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comp.setSelectionColor(
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style.getColor(context, ColorType.TEXT_BACKGROUND));
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}
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Color sfg = comp.getSelectedTextColor();
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if (sfg == null || sfg instanceof UIResource) {
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comp.setSelectedTextColor(
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style.getColor(context, ColorType.TEXT_FOREGROUND));
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}
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context.setComponentState(DISABLED);
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Color dfg = comp.getDisabledTextColor();
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if (dfg == null || dfg instanceof UIResource) {
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comp.setDisabledTextColor(
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style.getColor(context, ColorType.TEXT_FOREGROUND));
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}
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Insets margin = comp.getMargin();
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if (margin == null || margin instanceof UIResource) {
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margin = (Insets)style.get(context, prefix + ".margin");
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if (margin == null) {
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// Some places assume margins are non-null.
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margin = SynthLookAndFeel.EMPTY_UIRESOURCE_INSETS;
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}
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comp.setMargin(margin);
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}
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Caret caret = comp.getCaret();
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if (caret instanceof UIResource) {
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Object o = style.get(context, prefix + ".caretBlinkRate");
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if (o instanceof Integer rate) {
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caret.setBlinkRate(rate.intValue());
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}
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public SynthContext getContext(JComponent c) {
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return getContext(c, SynthLookAndFeel.getComponentState(c));
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}
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private SynthContext getContext(JComponent c, int state) {
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return SynthContext.getContext(c, style, state);
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}
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/**
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* Notifies this UI delegate to repaint the specified component.
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* This method paints the component background, then calls
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* the {@link #paint(SynthContext,Graphics)} method.
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*
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* <p>In general, this method does not need to be overridden by subclasses.
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* All Look and Feel rendering code should reside in the {@code paint} method.
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*
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* @param g the {@code Graphics} object used for painting
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* @param c the component being painted
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* @see #paint(SynthContext,Graphics)
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*/
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@Override
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public void update(Graphics g, JComponent c) {
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SynthContext context = getContext(c);
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SynthLookAndFeel.update(context, g);
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paintBackground(context, g, c);
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paint(context, g);
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}
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/**
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* Paints the specified component.
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* <p>This is routed to the {@link #paintSafely} method under
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* the guarantee that the model does not change from the view of this
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* thread while it is rendering (if the associated model is
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* derived from {@code AbstractDocument}). This enables the
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* model to potentially be updated asynchronously.
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*
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* @param context context for the component being painted
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* @param g the {@code Graphics} object used for painting
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* @see #update(Graphics,JComponent)
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*/
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protected void paint(SynthContext context, Graphics g) {
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super.paint(g, getComponent());
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}
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void paintBackground(SynthContext context, Graphics g, JComponent c) {
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context.getPainter().paintTextFieldBackground(context, g, 0, 0,
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c.getWidth(), c.getHeight());
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void paintBorder(SynthContext context, Graphics g, int x,
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int y, int w, int h) {
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context.getPainter().paintTextFieldBorder(context, g, x, y, w, h);
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}
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/**
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* {@inheritDoc}
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* Overridden to do nothing.
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*/
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@Override
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protected void paintBackground(Graphics g) {
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// Overriden to do nothing, all our painting is done from update/paint.
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}
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/**
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* This method gets called when a bound property is changed
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* on the associated JTextComponent. This is a hook
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* which UI implementations may change to reflect how the
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* UI displays bound properties of JTextComponent subclasses.
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* This is implemented to do nothing (i.e. the response to
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* properties in JTextComponent itself are handled prior
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* to calling this method).
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*
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* @param evt the property change event
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*/
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@Override
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protected void propertyChange(PropertyChangeEvent evt) {
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if (evt.getPropertyName().equals("keymap")) {
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if (evt.getNewValue() != null)
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{
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updateKBAction = false;
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} else {
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updateKBAction = true;
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}
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}
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if (SynthLookAndFeel.shouldUpdateStyle(evt)) {
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updateStyle((JTextComponent)evt.getSource(), updateKBAction);
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}
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super.propertyChange(evt);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void installDefaults() {
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// Installs the text cursor on the component
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super.installDefaults();
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updateStyle(getComponent(), true);
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getComponent().addFocusListener(handler);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void uninstallDefaults() {
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SynthContext context = getContext(getComponent(), ENABLED);
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getComponent().putClientProperty("caretAspectRatio", null);
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getComponent().removeFocusListener(handler);
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style.uninstallDefaults(context);
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style = null;
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super.uninstallDefaults();
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}
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private final class Handler implements FocusListener {
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public void focusGained(FocusEvent e) {
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getComponent().repaint();
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}
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public void focusLost(FocusEvent e) {
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getComponent().repaint();
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}
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}
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}
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