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- /*
- * Copyright (c) 2006-2010 Chris Smith, Shane Mc Cormack, Gregory Holmes
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
- package com.dmdirc.addons.lagdisplay;
-
- import com.dmdirc.ui.WindowManager;
- import com.dmdirc.util.RollingList;
-
- import java.awt.Color;
- import java.awt.Dimension;
- import java.awt.Graphics;
- import java.awt.Graphics2D;
- import java.awt.Rectangle;
- import java.awt.geom.Rectangle2D;
- import java.util.ArrayList;
- import java.util.List;
- import javax.swing.JPanel;
-
- /**
- * Shows a ping history graph for the current server.
- *
- * @author chris
- */
- public class PingHistoryPanel extends JPanel {
-
- /**
- * A version number for this class. It should be changed whenever the class
- * structure is changed (or anything else that would prevent serialized
- * objects being unserialized with the new class).
- */
- private static final long serialVersionUID = 1;
-
- /** The plugin that this panel is for. */
- protected final LagDisplayPlugin plugin;
-
- /** The history that we're graphing. */
- protected final RollingList<Long> history;
-
- /** The maximum ping value. */
- protected long maximum = 0l;
-
- /**
- * Creates a new history panel for the specified plugin.
- *
- * @param plugin The plugin that owns this panel
- */
- public PingHistoryPanel(final LagDisplayPlugin plugin) {
- super();
-
- setMinimumSize(new Dimension(50, 100));
- setMaximumSize(new Dimension(Integer.MAX_VALUE, 100));
- setOpaque(false);
-
- this.plugin = plugin;
- this.history = plugin.getHistory(WindowManager.getActiveServer());
-
- for (Long value : history.getList()) {
- maximum = Math.max(value, maximum);
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public void paint(final Graphics g) {
- super.paint(g);
-
- g.setColor(Color.DARK_GRAY);
- g.drawLine(2, 1, 2, getHeight() - 1);
- g.drawLine(1, getHeight() - 2, getWidth() - 1, getHeight() - 2);
- g.setFont(g.getFont().deriveFont(10f));
-
- float lastX = -1, lastY = -1;
- float pixelsperpointX = (getWidth() - 3) / (float) (history.getList().size() == 1 ? 1
- : history.getList().size() - 1);
- float pixelsperpointY = (getHeight() - 10) / (float) maximum;
-
- if (history.isEmpty()) {
- g.drawString("No data", getWidth() / 2 - 25, getHeight() / 2 + 5);
- }
-
- long last1 = -1, last2 = -1;
- final List<Long> list = history.getList();
- final List<Rectangle> rects = new ArrayList<Rectangle>();
-
- for (int i = 0; i < list.size(); i++) {
- final Long value = list.get(i);
-
- float x = lastX == -1 ? 2 : lastX + pixelsperpointX;
- float y = getHeight() - 5 - value * pixelsperpointY;
-
- if (lastX > -1) {
- g.drawLine((int) lastX, (int) lastY, (int) x, (int) y);
- }
-
- g.drawRect((int) x - 1, (int) y - 1, 2, 2);
-
- if (plugin.shouldShowLabels() && last1 > -1 && (last2 <= last1 || last1 >= value)) {
- final String text = plugin.formatTime(last1);
- final Rectangle2D rect = g.getFont().getStringBounds(text,
- ((Graphics2D) g).getFontRenderContext());
- final int width = 10 + (int) rect.getWidth();
- final int points = (int) Math.ceil(width / pixelsperpointX);
- final int diffy = (int) (last1 - (10 + rect.getHeight()) / pixelsperpointY);
-
- float posX = lastX - width + 7;
- float posY = (float) (lastY + rect.getHeight() / 2) - 1;
- boolean failed = posX < 0;
-
- // Check left
- for (int j = Math.max(0, i - points); j < i - 1; j++) {
- if (list.get(j) > diffy) {
- failed = true;
- break;
- }
- }
-
- if (failed) {
- posX = lastX + 3;
- failed = posX + width > getWidth();
-
- // Check right
- for (int j = i; j < Math.min(list.size(), i + points); j++) {
- if (list.get(j) > diffy) {
- failed = true;
- break;
- }
- }
- }
-
- if (!failed) {
- final Rectangle myrect = new Rectangle((int) posX - 2,
- (int) lastY - 7, 5 + (int) rect.getWidth(),
- 3 + (int) rect.getHeight());
-
- for (Rectangle test : rects) {
- if (test.intersects(myrect)) {
- failed = true;
- }
- }
-
- if (!failed) {
- g.drawString(text, (int) posX, (int) posY);
- rects.add(myrect);
- }
- }
- }
-
- lastX = x;
- lastY = y;
-
- last2 = last1;
- last1 = value;
- }
- }
-
- }
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