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- /*
- * Copyright (c) 2006-2017 DMDirc Developers
- *
- * 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.ui_swing.components;
-
- import com.dmdirc.config.GlobalConfig;
- import com.dmdirc.config.provider.AggregateConfigProvider;
- import com.dmdirc.config.provider.ConfigChangeListener;
- import com.dmdirc.util.URLBuilder;
- import java.awt.Image;
- import java.awt.Toolkit;
- import java.io.IOException;
- import java.net.URL;
- import java.util.Calendar;
- import java.util.Date;
- import java.util.GregorianCalendar;
- import java.util.HashMap;
- import java.util.Map;
- import javax.inject.Inject;
- import javax.inject.Singleton;
- import javax.swing.Icon;
- import javax.swing.ImageIcon;
-
- /**
- * The icon manager provides a standard way to access icons for use in DMDirc. It allows the user to
- * override the default actions using config settings under the icons domain.
- */
- @Singleton
- public class IconManager implements ConfigChangeListener {
-
- /** A map of existing icons. */
- private final Map<String, Icon> icons;
- /** A map of existing images. */
- private final Map<String, Image> images;
- /** Config manager to retrieve settings from. */
- private final AggregateConfigProvider configManager;
- /** URL builder to use for icons. */
- private final URLBuilder urlBuilder;
-
- /**
- * Creates a new instance of IconManager.
- *
- * @param configManager Config manager to retrieve settings from
- * @param urlBuilder URL builder to use for icons.
- */
- @Inject
- public IconManager(
- @GlobalConfig final AggregateConfigProvider configManager,
- final URLBuilder urlBuilder) {
- this.configManager = configManager;
- this.urlBuilder = urlBuilder;
-
- icons = new HashMap<>();
- images = new HashMap<>();
-
- configManager.addChangeListener("icon", this);
- }
-
- /**
- * Retrieves the icon with the specified type. Returns null if the icon wasn't found.
- *
- * @param type The name of the icon type to retrieve
- *
- * @return The icon that should be used for the specified type
- */
- public Icon getIcon(final String type) {
- if (icons.containsKey(type)) {
- return icons.get(type);
- }
- if (!icons.containsKey(type)) {
- final URL iconURL = getIconURL(type);
- final Image iconImage = Toolkit.getDefaultToolkit().getImage(iconURL);
- final Image scaledIconImage = getScaledImage(iconImage, 16, 16);
- icons.put(type, new ImageIcon(scaledIconImage));
- }
- return icons.get(type);
- }
-
- /**
- * Retrieves the icon with the specified type. Returns null if the icon wasn't found.
- *
- * @param type The name of the icon type to retrieve
- * @param width width of the image
- * @param height height of the image
- *
- * @return The icon that should be used for the specified type
- *
- * @since 0.6.3m1
- */
- public Icon getScaledIcon(final String type, final int width, final int height) {
- return new ImageIcon(getScaledImage(new ImageIcon(getIconURL(type)).
- getImage(), width, height));
- }
-
- /**
- * Retrieves the image with the specified type. Returns null if the icon wasn't found.
- *
- * @param type The name of the icon type to retrieve
- *
- * @return The image that should be used for the specified type
- */
- public Image getImage(final String type) {
- if (!images.containsKey(type)) {
- images.put(type, Toolkit.getDefaultToolkit().createImage(getIconURL(type)));
- }
- return images.get(type);
- }
-
- /**
- * Returns a scaled image.
- *
- * @param image Image to scale
- * @param width Width of resulting image
- * @param height Height of resulting image
- *
- * @return Scaled Image
- */
- private Image getScaledImage(final Image image,
- final int width, final int height) {
- return image.getScaledInstance(width, height, Image.SCALE_SMOOTH);
- }
-
- /**
- * Retrieves the URL of a specified icon type.
- *
- * @param type The name of the icon type to retrieve
- *
- * @return The URL that should be used to retrieve the specified icon
- */
- private URL getIconURL(final String type) {
- final String iconType = getSpecialIcons(type);
- final ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
- final ClassLoader classLoader = contextClassLoader == null
- ? getClass().getClassLoader() : contextClassLoader;
- final URL defaultURL = classLoader.getResource("com/dmdirc/res/" + iconType + ".png");
-
- //Get the path for the url
- final String path = configManager.hasOptionString("icon", iconType)
- ? configManager.getOption("icon", iconType)
- : "dmdirc://com/dmdirc/res/" + iconType + ".png";
-
- //Get the url for the specified path
- URL imageURL = urlBuilder.getUrl(path);
-
- if (imageURL == null && defaultURL != null) {
- imageURL = defaultURL;
- }
-
- if (imageURL == null) {
- imageURL = classLoader.getResource("com/dmdirc/res/icon.png");
- }
-
- //Check URL points to a valid location
- try {
- imageURL.openConnection().connect();
- } catch (IOException ex) {
- imageURL = classLoader.getResource("com/dmdirc/res/icon.png");
- }
-
- if (imageURL == null) {
- throw new IllegalArgumentException("Unable to load icon type '"
- + iconType + "', and unable to load default");
- }
-
- return imageURL;
- }
-
- private String getSpecialIcons(final String type) {
- final Calendar cal = new GregorianCalendar();
- cal.setTime(new Date());
- if (cal.get(Calendar.MONTH) == Calendar.DECEMBER
- && cal.get(Calendar.DAY_OF_MONTH) >= 12
- && cal.get(Calendar.DAY_OF_MONTH) <= 31
- && ("icon".equals(type) || "logo".equals(type))) {
- return "logo-special";
- }
- return type;
- }
-
- @Override
- public void configChanged(final String domain, final String key) {
- if ("icon".equals(domain)) {
- if (images.containsKey(key)) {
- images.remove(key);
- }
- if (icons.containsKey(key)) {
- icons.remove(key);
- }
- }
- }
-
- }
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