diff agent/src/share/classes/sun/jvm/hotspot/ui/GraphicsUtilities.java @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children c18cbe5936b8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/ui/GraphicsUtilities.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2000-2004 Sun Microsystems, Inc.  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.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.ui;
+
+import java.awt.*;
+import java.awt.font.*;
+import java.awt.geom.*;
+import java.util.Random;
+import javax.swing.*;
+import javax.swing.border.*;
+
+/** Useful utilities for drawing graphics */
+
+public class GraphicsUtilities {
+  /** Returns a plain-styled 12-point version of the given font, or
+      null if the font could not be found */
+  public static Font lookupFont(String fontName) {
+    Font[] allFonts = GraphicsEnvironment.getLocalGraphicsEnvironment().getAllFonts();
+    Font font = null;
+    for (int i = 0; i < allFonts.length; i++) {
+      if (allFonts[i].getFontName().indexOf(fontName) != -1) {
+        font = allFonts[i];
+        break;
+      }
+    }
+    if (font == null) {
+      return null;
+    }
+    return font.deriveFont(Font.PLAIN, 12);
+  }
+
+  /** Compute the width and height of given string given the current
+      font context in the Graphics object */
+  public static Rectangle2D getStringBounds(String s, Graphics g) {
+    FontMetrics fm = g.getFontMetrics();
+    return fm.getStringBounds(s, 0, s.length(), g);
+  }
+
+  /** Compute just the width of the given string with the given
+      FontMetrics. This is less accurate then getStringBounds(),
+      above, since the graphics context is not taken into account. */
+  public static int getStringWidth(String s, FontMetrics fm) {
+    return fm.stringWidth(s);
+  }
+
+  public static void reshapeToAspectRatio(Component component,
+                                          float aspectRatio,
+                                          float fillRatio,
+                                          Dimension containerDimension) {
+    int x = containerDimension.width;
+    int y = containerDimension.height;
+
+    int desiredX;
+    int desiredY;
+
+    if (((float) x / (float) y) > aspectRatio) {
+      desiredY = (int) (fillRatio * y);
+      desiredX = (int) (desiredY * aspectRatio);
+    } else {
+      desiredX = (int) (fillRatio * x);
+      desiredY = (int) (desiredX / aspectRatio);
+    }
+    component.setSize(desiredX, desiredY);
+  }
+
+  public static void constrainToSize(Component component, Dimension containerDimension) {
+    Dimension d = component.getSize();
+    int x = d.width;
+    int y = d.height;
+    boolean changed = false;
+
+    if (x > containerDimension.width) {
+      x = containerDimension.width;
+      changed = true;
+    }
+    if (y > containerDimension.height) {
+      y = containerDimension.height;
+      changed = true;
+    }
+
+    if (changed) {
+      component.setSize(x, y);
+    }
+  }
+
+  public static void centerInContainer(Component c) {
+    centerInContainer(c, c.getParent().getSize());
+  }
+
+  public static void centerInContainer(Component component,
+                                       Dimension containerDimension) {
+    Dimension sz = component.getSize();
+    int x = ((containerDimension.width - sz.width) / 2);
+    int y = ((containerDimension.height - sz.height) / 2);
+    component.setLocation(x, y);
+  }
+
+  public static void moveToInContainer(Component component,
+                                       float relativeX,
+                                       float relativeY,
+                                       int minX,
+                                       int minY) {
+    Dimension d = component.getParent().getSize();
+    // Move the center of this component to the relative position in
+    // the parent. Don't clip this component, however.
+    Dimension sz = component.getSize();
+    int xPos = Math.min(d.width - sz.width,
+                        (int) ((d.width * relativeX) - (sz.width / 2)));
+    int yPos = Math.min(d.height - sz.height,
+                        (int) ((d.height * relativeY) - (sz.height / 2)));
+    xPos = Math.max(xPos, minX);
+    yPos = Math.max(yPos, minY);
+    component.setLocation(xPos, yPos);
+  }
+
+  static Random random = new Random();
+
+  public static void randomLocation(Component c) {
+    randomLocation(c, c.getParent().getSize());
+  }
+
+  public static void randomLocation(Component component,
+                                    Dimension containerDimension) {
+    Dimension sz = component.getSize();
+    int x = (int)((containerDimension.width - sz.width) * random.nextFloat());
+    int y = (int)((containerDimension.height - sz.height) * random.nextFloat());
+    component.setLocation(x, y);
+  }
+
+
+  public static Border newBorder(int size) {
+    return BorderFactory.createEmptyBorder(size, size, size, size);
+  }
+}