/*
* Copyright (c) 1997, 2008, 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
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package javax.swing.plaf.basic;
import javax.swing.*;
import java.awt.Component;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Insets;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.event.KeyEvent;
import java.awt.event.InputEvent;
import sun.swing.SwingUtilities2;
/*
* @author Hans Muller
*/
public class BasicGraphicsUtils
{
private static final Insets GROOVE_INSETS = new Insets(2, 2, 2, 2);
private static final Insets ETCHED_INSETS = new Insets(2, 2, 2, 2);
public static void drawEtchedRect(Graphics g, int x, int y, int w, int h,
Color shadow, Color darkShadow,
Color highlight, Color lightHighlight)
{
Color oldColor = g.getColor(); // Make no net change to g
g.translate(x, y);
g.setColor(shadow);
g.drawLine(0, 0, w-1, 0); // outer border, top
g.drawLine(0, 1, 0, h-2); // outer border, left
g.setColor(darkShadow);
g.drawLine(1, 1, w-3, 1); // inner border, top
g.drawLine(1, 2, 1, h-3); // inner border, left
g.setColor(lightHighlight);
g.drawLine(w-1, 0, w-1, h-1); // outer border, bottom
g.drawLine(0, h-1, w-1, h-1); // outer border, right
g.setColor(highlight);
g.drawLine(w-2, 1, w-2, h-3); // inner border, right
g.drawLine(1, h-2, w-2, h-2); // inner border, bottom
g.translate(-x, -y);
g.setColor(oldColor);
}
/**
* Returns the amount of space taken up by a border drawn by
* <code>drawEtchedRect()</code>
*
* @return the inset of an etched rect
*/
public static Insets getEtchedInsets() {
return ETCHED_INSETS;
}
public static void drawGroove(Graphics g, int x, int y, int w, int h,
Color shadow, Color highlight)
{
Color oldColor = g.getColor(); // Make no net change to g
g.translate(x, y);
g.setColor(shadow);
g.drawRect(0, 0, w-2, h-2);
g.setColor(highlight);
g.drawLine(1, h-3, 1, 1);
g.drawLine(1, 1, w-3, 1);
g.drawLine(0, h-1, w-1, h-1);
g.drawLine(w-1, h-1, w-1, 0);
g.translate(-x, -y);
g.setColor(oldColor);
}
/**
* Returns the amount of space taken up by a border drawn by
* <code>drawGroove()</code>
*
* @return the inset of a groove border
*/
public static Insets getGrooveInsets() {
return GROOVE_INSETS;
}
public static void drawBezel(Graphics g, int x, int y, int w, int h,
boolean isPressed, boolean isDefault,
Color shadow, Color darkShadow,
Color highlight, Color lightHighlight)
{
Color oldColor = g.getColor(); // Make no net change to g
g.translate(x, y);
if (isPressed && isDefault) {
g.setColor(darkShadow);
g.drawRect(0, 0, w - 1, h - 1);
g.setColor(shadow);
g.drawRect(1, 1, w - 3, h - 3);
} else if (isPressed) {
drawLoweredBezel(g, x, y, w, h,
shadow, darkShadow, highlight, lightHighlight);
} else if (isDefault) {
g.setColor(darkShadow);
g.drawRect(0, 0, w-1, h-1);
g.setColor(lightHighlight);
g.drawLine(1, 1, 1, h-3);
g.drawLine(2, 1, w-3, 1);
g.setColor(highlight);
g.drawLine(2, 2, 2, h-4);
g.drawLine(3, 2, w-4, 2);
g.setColor(shadow);
g.drawLine(2, h-3, w-3, h-3);
g.drawLine(w-3, 2, w-3, h-4);
g.setColor(darkShadow);
g.drawLine(1, h-2, w-2, h-2);
g.drawLine(w-2, h-2, w-2, 1);
} else {
g.setColor(lightHighlight);
g.drawLine(0, 0, 0, h-1);
g.drawLine(1, 0, w-2, 0);
g.setColor(highlight);
g.drawLine(1, 1, 1, h-3);
g.drawLine(2, 1, w-3, 1);
g.setColor(shadow);
g.drawLine(1, h-2, w-2, h-2);
g.drawLine(w-2, 1, w-2, h-3);
g.setColor(darkShadow);
g.drawLine(0, h-1, w-1, h-1);
g.drawLine(w-1, h-1, w-1, 0);
}
g.translate(-x, -y);
g.setColor(oldColor);
}
public static void drawLoweredBezel(Graphics g, int x, int y, int w, int h,
Color shadow, Color darkShadow,
Color highlight, Color lightHighlight) {
g.setColor(darkShadow);
g.drawLine(0, 0, 0, h-1);
g.drawLine(1, 0, w-2, 0);
g.setColor(shadow);
g.drawLine(1, 1, 1, h-2);
g.drawLine(1, 1, w-3, 1);
g.setColor(lightHighlight);
g.drawLine(0, h-1, w-1, h-1);
g.drawLine(w-1, h-1, w-1, 0);
g.setColor(highlight);
g.drawLine(1, h-2, w-2, h-2);
g.drawLine(w-2, h-2, w-2, 1);
}
/** Draw a string with the graphics <code>g</code> at location (x,y)
* just like <code>g.drawString</code> would.
* The first occurrence of <code>underlineChar</code>
* in text will be underlined. The matching algorithm is
* not case sensitive.
*/
public static void drawString(Graphics g,String text,int underlinedChar,int x,int y) {
int index=-1;
if (underlinedChar != '\0') {
char uc = Character.toUpperCase((char)underlinedChar);
char lc = Character.toLowerCase((char)underlinedChar);
int uci = text.indexOf(uc);
int lci = text.indexOf(lc);
if(uci == -1) {
index = lci;
}
else if(lci == -1) {
index = uci;
}
else {
index = (lci < uci) ? lci : uci;
}
}
drawStringUnderlineCharAt(g, text, index, x, y);
}
/**
* Draw a string with the graphics <code>g</code> at location
* (<code>x</code>, <code>y</code>)
* just like <code>g.drawString</code> would.
* The character at index <code>underlinedIndex</code>
* in text will be underlined. If <code>index</code> is beyond the
* bounds of <code>text</code> (including < 0), nothing will be
* underlined.
*
* @param g Graphics to draw with
* @param text String to draw
* @param underlinedIndex Index of character in text to underline
* @param x x coordinate to draw at
* @param y y coordinate to draw at
* @since 1.4
*/
public static void drawStringUnderlineCharAt(Graphics g, String text,
int underlinedIndex, int x,int y) {
SwingUtilities2.drawStringUnderlineCharAt(null, g, text,
underlinedIndex, x, y);
}
public static void drawDashedRect(Graphics g,int x,int y,int width,int height) {
int vx,vy;
// draw upper and lower horizontal dashes
for (vx = x; vx < (x + width); vx+=2) {
g.fillRect(vx, y, 1, 1);
g.fillRect(vx, y + height-1, 1, 1);
}
// draw left and right vertical dashes
for (vy = y; vy < (y + height); vy+=2) {
g.fillRect(x, vy, 1, 1);
g.fillRect(x+width-1, vy, 1, 1);
}
}
public static Dimension getPreferredButtonSize(AbstractButton b, int textIconGap)
{
if(b.getComponentCount() > 0) {
return null;
}
Icon icon = b.getIcon();
String text = b.getText();
Font font = b.getFont();
FontMetrics fm = b.getFontMetrics(font);
Rectangle iconR = new Rectangle();
Rectangle textR = new Rectangle();
Rectangle viewR = new Rectangle(Short.MAX_VALUE, Short.MAX_VALUE);
SwingUtilities.layoutCompoundLabel(
b, fm, text, icon,
b.getVerticalAlignment(), b.getHorizontalAlignment(),
b.getVerticalTextPosition(), b.getHorizontalTextPosition(),
viewR, iconR, textR, (text == null ? 0 : textIconGap)
);
/* The preferred size of the button is the size of
* the text and icon rectangles plus the buttons insets.
*/
Rectangle r = iconR.union(textR);
Insets insets = b.getInsets();
r.width += insets.left + insets.right;
r.height += insets.top + insets.bottom;
return r.getSize();
}
/*
* Convenience function for determining ComponentOrientation. Helps us
* avoid having Munge directives throughout the code.
*/
static boolean isLeftToRight( Component c ) {
return c.getComponentOrientation().isLeftToRight();
}
static boolean isMenuShortcutKeyDown(InputEvent event) {
return (event.getModifiers() &
Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()) != 0;
}
}