src/java.desktop/share/classes/com/sun/java/swing/plaf/windows/WindowsGraphicsUtils.java
changeset 47216 71c04702a3d5
parent 31896 89a49ef6dda6
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.desktop/share/classes/com/sun/java/swing/plaf/windows/WindowsGraphicsUtils.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,236 @@
+/*
+ * Copyright (c) 2000, 2015, 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 com.sun.java.swing.plaf.windows;
+
+import sun.swing.SwingUtilities2;
+
+import java.awt.*;
+
+import javax.swing.*;
+import javax.swing.plaf.UIResource;
+
+import static com.sun.java.swing.plaf.windows.TMSchema.*;
+
+/**
+ * A collection of static utility methods used for rendering the Windows look
+ * and feel.
+ *
+ * @author Mark Davidson
+ * @since 1.4
+ */
+public class WindowsGraphicsUtils {
+
+    /**
+     * Renders a text String in Windows without the mnemonic.
+     * This is here because the WindowsUI hierarchy doesn't match the Component hierarchy. All
+     * the overriden paintText methods of the ButtonUI delegates will call this static method.
+     *
+     * @param g Graphics context
+     * @param b Current button to render
+     * @param textRect Bounding rectangle to render the text.
+     * @param text String to render
+     */
+    public static void paintText(Graphics g, AbstractButton b,
+                                        Rectangle textRect, String text,
+                                        int textShiftOffset) {
+        FontMetrics fm = SwingUtilities2.getFontMetrics(b, g);
+
+        int mnemIndex = b.getDisplayedMnemonicIndex();
+        // W2K Feature: Check to see if the Underscore should be rendered.
+        if (WindowsLookAndFeel.isMnemonicHidden() == true) {
+            mnemIndex = -1;
+        }
+
+        XPStyle xp = XPStyle.getXP();
+        if (xp != null && !(b instanceof JMenuItem)) {
+            paintXPText(b, g, textRect.x + textShiftOffset,
+                    textRect.y + fm.getAscent() + textShiftOffset,
+                    text, mnemIndex);
+        } else {
+            paintClassicText(b, g, textRect.x + textShiftOffset,
+                    textRect.y + fm.getAscent() + textShiftOffset,
+                    text, mnemIndex);
+        }
+    }
+
+    static void paintClassicText(AbstractButton b, Graphics g, int x, int y,
+                                 String text, int mnemIndex) {
+        ButtonModel model = b.getModel();
+
+        /* Draw the Text */
+        Color color = b.getForeground();
+        if(model.isEnabled()) {
+            /*** paint the text normally */
+            if(!(b instanceof JMenuItem && model.isArmed())
+                && !(b instanceof JMenu && (model.isSelected() || model.isRollover()))) {
+                /* We shall not set foreground color for selected menu or
+                 * armed menuitem. Foreground must be set in appropriate
+                 * Windows* class because these colors passes from
+                 * BasicMenuItemUI as protected fields and we can't
+                 * reach them from this class */
+                g.setColor(b.getForeground());
+            }
+            SwingUtilities2.drawStringUnderlineCharAt(b, g,text, mnemIndex, x, y);
+        } else {        /*** paint the text disabled ***/
+            color = getDisabledTextColor(b);
+            if (color == null) {
+                color = UIManager.getColor("Button.shadow");
+            }
+            Color shadow = UIManager.getColor("Button.disabledShadow");
+            if(model.isArmed()) {
+                color = UIManager.getColor("Button.disabledForeground");
+            } else {
+                if (shadow == null) {
+                    shadow = b.getBackground().darker();
+                }
+                g.setColor(shadow);
+                SwingUtilities2.drawStringUnderlineCharAt(b, g, text, mnemIndex,
+                                                          x + 1, y + 1);
+            }
+            if (color == null) {
+                color = b.getBackground().brighter();
+            }
+            g.setColor(color);
+            SwingUtilities2.drawStringUnderlineCharAt(b, g, text, mnemIndex, x, y);
+        }
+    }
+
+    private static Color getDisabledTextColor(AbstractButton b) {
+        if (b instanceof JCheckBox) {
+            return UIManager.getColor("CheckBox.disabledText");
+        } else if (b instanceof JRadioButton) {
+            return UIManager.getColor("RadioButton.disabledText");
+        } else if (b instanceof JToggleButton) {
+            return  UIManager.getColor("ToggleButton.disabledText");
+        } else if (b instanceof JButton) {
+            return UIManager.getColor("Button.disabledText");
+        }
+        return null;
+    }
+
+    static void paintXPText(AbstractButton b, Graphics g, int x, int y,
+                            String text, int mnemIndex) {
+        Part part = WindowsButtonUI.getXPButtonType(b);
+        State state = WindowsButtonUI.getXPButtonState(b);
+        paintXPText(b, part, state, g, x, y, text, mnemIndex);
+    }
+
+    static void paintXPText(AbstractButton b, Part part, State state,
+            Graphics g, int x, int y, String text, int mnemIndex) {
+        XPStyle xp = XPStyle.getXP();
+        if (xp == null) {
+            return;
+        }
+        Color textColor;
+        if (b.isEnabled()) {
+            textColor = b.getForeground();
+        }
+        else {
+            textColor = getDisabledTextColor(b);
+        }
+
+        if (textColor == null || textColor instanceof UIResource) {
+            textColor = xp.getColor(b, part, state, Prop.TEXTCOLOR, b.getForeground());
+            // to work around an apparent bug in Windows, use the pushbutton
+            // color for disabled toolbar buttons if the disabled color is the
+            // same as the enabled color
+            if (part == Part.TP_BUTTON && state == State.DISABLED) {
+                Color enabledColor = xp.getColor(b, part, State.NORMAL,
+                                     Prop.TEXTCOLOR, b.getForeground());
+                if(textColor.equals(enabledColor)) {
+                    textColor = xp.getColor(b, Part.BP_PUSHBUTTON, state,
+                                Prop.TEXTCOLOR, textColor);
+                }
+            }
+            // only draw shadow if developer hasn't changed the foreground color
+            // and if the current style has text shadows.
+            TypeEnum shadowType = xp.getTypeEnum(b, part,
+                                                 state, Prop.TEXTSHADOWTYPE);
+            if (shadowType == TypeEnum.TST_SINGLE ||
+                        shadowType == TypeEnum.TST_CONTINUOUS) {
+                Color shadowColor = xp.getColor(b, part, state,
+                                                Prop.TEXTSHADOWCOLOR, Color.black);
+                Point offset = xp.getPoint(b, part, state, Prop.TEXTSHADOWOFFSET);
+                if (offset != null) {
+                    g.setColor(shadowColor);
+                    SwingUtilities2.drawStringUnderlineCharAt(b, g, text, mnemIndex,
+                                                              x + offset.x,
+                                                              y + offset.y);
+                }
+            }
+        }
+
+        g.setColor(textColor);
+        SwingUtilities2.drawStringUnderlineCharAt(b, g, text, mnemIndex, x, y);
+    }
+
+    static boolean isLeftToRight(Component c) {
+        return c.getComponentOrientation().isLeftToRight();
+    }
+
+    /*
+     * Repaints all the components with the mnemonics in the given window and
+     * all its owned windows.
+     */
+    static void repaintMnemonicsInWindow(Window w) {
+        if(w == null || !w.isShowing()) {
+            return;
+        }
+
+        Window[] ownedWindows = w.getOwnedWindows();
+        for(int i=0;i<ownedWindows.length;i++) {
+            repaintMnemonicsInWindow(ownedWindows[i]);
+        }
+
+        repaintMnemonicsInContainer(w);
+    }
+
+    /*
+     * Repaints all the components with the mnemonics in container.
+     * Recursively searches for all the subcomponents.
+     */
+    static void repaintMnemonicsInContainer(Container cont) {
+        Component c;
+        for(int i=0; i<cont.getComponentCount(); i++) {
+            c = cont.getComponent(i);
+            if(c == null || !c.isVisible()) {
+                continue;
+            }
+            if(c instanceof AbstractButton
+               && ((AbstractButton)c).getMnemonic() != '\0') {
+                c.repaint();
+                continue;
+            } else if(c instanceof JLabel
+                      && ((JLabel)c).getDisplayedMnemonic() != '\0') {
+                c.repaint();
+                continue;
+            }
+            if(c instanceof Container) {
+                repaintMnemonicsInContainer((Container)c);
+            }
+        }
+    }
+}