/* * Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.awt.X11; import java.awt.*; import java.awt.peer.*; import java.awt.event.MouseEvent; import java.awt.event.FocusEvent; import java.awt.event.KeyEvent; import java.awt.event.ActionEvent; import javax.swing.plaf.basic.*; import javax.swing.SwingUtilities; import javax.swing.SwingConstants; public class XButtonPeer extends XComponentPeer implements ButtonPeer { private boolean pressed; private boolean armed; private Insets focusInsets; private Insets borderInsets; private Insets contentAreaInsets; private static final String propertyPrefix = "Button" + "."; protected Color focusColor = SystemColor.windowText; private boolean disposed = false; String label; protected String getPropertyPrefix() { return propertyPrefix; } void preInit(XCreateWindowParams params) { super.preInit(params); borderInsets = new Insets(2,2,2,2); focusInsets = new Insets(0,0,0,0); contentAreaInsets = new Insets(3,3,3,3); } public XButtonPeer(Button target) { super(target); pressed = false; armed = false; label = target.getLabel(); updateMotifColors(getPeerBackground()); } public void dispose() { synchronized (target) { disposed = true; } super.dispose(); } public boolean isFocusable() { return true; } @Override public void setLabel(String label) { if (label == null) { label = ""; } if (!label.equals(this.label)) { this.label = label; repaint(); } } public void setBackground(Color c) { updateMotifColors(c); super.setBackground(c); } void handleJavaMouseEvent(MouseEvent e) { super.handleJavaMouseEvent(e); int id = e.getID(); switch (id) { case MouseEvent.MOUSE_PRESSED: if (XToolkit.isLeftMouseButton(e) ) { Button b = (Button) e.getSource(); if(b.contains(e.getX(), e.getY())) { if (!isEnabled()) { // Disabled buttons ignore all input... return; } pressed = true; armed = true; repaint(); } } break; case MouseEvent.MOUSE_RELEASED: if (XToolkit.isLeftMouseButton(e)) { if (armed) { @SuppressWarnings("deprecation") final int modifiers = e.getModifiers(); action(e.getWhen(), modifiers); } pressed = false; armed = false; repaint(); } break; case MouseEvent.MOUSE_ENTERED: if (pressed) armed = true; break; case MouseEvent.MOUSE_EXITED: armed = false; break; } } // NOTE: This method is called by privileged threads. // DO NOT INVOKE CLIENT CODE ON THIS THREAD! public void action(final long when, final int modifiers) { postEvent(new ActionEvent(target, ActionEvent.ACTION_PERFORMED, ((Button)target).getActionCommand(), when, modifiers)); } public void focusGained(FocusEvent e) { super.focusGained(e); repaint(); } public void focusLost(FocusEvent e) { super.focusLost(e); repaint(); } void handleJavaKeyEvent(KeyEvent e) { int id = e.getID(); switch (id) { case KeyEvent.KEY_PRESSED: if (e.getKeyCode() == KeyEvent.VK_SPACE) { pressed=true; armed=true; repaint(); @SuppressWarnings("deprecation") final int modifiers = e.getModifiers(); action(e.getWhen(), modifiers); } break; case KeyEvent.KEY_RELEASED: if (e.getKeyCode() == KeyEvent.VK_SPACE) { pressed = false; armed = false; repaint(); } break; } } public Dimension getMinimumSize() { FontMetrics fm = getFontMetrics(getPeerFont()); if ( label == null ) { label = ""; } return new Dimension(fm.stringWidth(label) + 14, fm.getHeight() + 8); } /** * This method is called from Toolkit Thread and so it should not call any * client code. */ @Override void paintPeer(final Graphics g) { if (!disposed) { Dimension size = getPeerSize(); g.setColor( getPeerBackground() ); /* erase the existing button remains */ g.fillRect(0,0, size.width , size.height); paintBorder(g,borderInsets.left, borderInsets.top, size.width-(borderInsets.left+borderInsets.right), size.height-(borderInsets.top+borderInsets.bottom)); FontMetrics fm = g.getFontMetrics(); Rectangle textRect,iconRect,viewRect; textRect = new Rectangle(); viewRect = new Rectangle(); iconRect = new Rectangle(); viewRect.width = size.width - (contentAreaInsets.left+contentAreaInsets.right); viewRect.height = size.height - (contentAreaInsets.top+contentAreaInsets.bottom); viewRect.x = contentAreaInsets.left; viewRect.y = contentAreaInsets.top; String llabel = (label != null) ? label : ""; // layout the text and icon String text = SwingUtilities.layoutCompoundLabel( fm, llabel, null, SwingConstants.CENTER, SwingConstants.CENTER, SwingConstants.CENTER, SwingConstants.CENTER, viewRect, iconRect, textRect, 0); Font f = getPeerFont(); g.setFont(f); // perform UI specific press action, e.g. Windows L&F shifts text if (pressed && armed) { paintButtonPressed(g,target); } paintText(g, target, textRect, text); if (hasFocus()) { // paint UI specific focus paintFocus(g,focusInsets.left, focusInsets.top, size.width-(focusInsets.left+focusInsets.right)-1, size.height-(focusInsets.top+focusInsets.bottom)-1); } } flush(); } public void paintBorder(Graphics g, int x, int y, int w, int h) { drawMotif3DRect(g, x, y, w-1, h-1, pressed); } protected void paintFocus(Graphics g, int x, int y, int w, int h){ g.setColor(focusColor); g.drawRect(x,y,w,h); } protected void paintButtonPressed(Graphics g, Component b) { Dimension size = getPeerSize(); g.setColor(selectColor); g.fillRect(contentAreaInsets.left, contentAreaInsets.top, size.width-(contentAreaInsets.left+contentAreaInsets.right), size.height-(contentAreaInsets.top+contentAreaInsets.bottom)); } protected void paintText(Graphics g, Component c, Rectangle textRect, String text) { FontMetrics fm = g.getFontMetrics(); int mnemonicIndex = -1; /* Draw the Text */ if(isEnabled()) { /*** paint the text normally */ g.setColor(getPeerForeground()); BasicGraphicsUtils.drawStringUnderlineCharAt(g,text,mnemonicIndex , textRect.x , textRect.y + fm.getAscent() ); } else { /*** paint the text disabled ***/ g.setColor(getPeerBackground().brighter()); BasicGraphicsUtils.drawStringUnderlineCharAt(g,text, mnemonicIndex, textRect.x, textRect.y + fm.getAscent()); g.setColor(getPeerBackground().darker()); BasicGraphicsUtils.drawStringUnderlineCharAt(g,text, mnemonicIndex, textRect.x - 1, textRect.y + fm.getAscent() - 1); } } }