Bug fixes and tweaks.

- Check if other Desktop actions are supported (follow-up to #114).
- The cursor-middle image is no longer scaled (when clicking).
- Changed the options menu background image (created with Trianglify at http://qrohlf.com/trianglify/), and made it fit the entire page.
- Slightly increased minimum splash screen time.
- Switched more animations to use AnimatedValue.

Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>

src/itdelatrisu/opsu/ErrorHandler.java

@@ -20,8 +20,10 @@ package itdelatrisu.opsu;
 
 import java.awt.Cursor;
 import java.awt.Desktop;
+import java.io.IOException;
 import java.io.PrintWriter;
 import java.io.StringWriter;
+import java.io.UnsupportedEncodingException;
 import java.net.URI;
 import java.net.URLEncoder;
 import java.util.Properties;
@@ -44,12 +46,13 @@ public class ErrorHandler {
 	/** Error popup description text. */
 	private static final String
 		desc  = "opsu! has encountered an error.",
-		descR = "opsu! has encountered an error. Please report this!";
+		descReport = "opsu! has encountered an error. Please report this!";
 
 	/** Error popup button options. */
 	private static final String[]
-		options  = {"View Error Log", "Close"},
-		optionsR = {"Send Report", "View Error Log", "Close"};
+		optionsLog  = {"View Error Log", "Close"},
+		optionsReport = {"Send Report", "Close"},
+		optionsLogReport = {"Send Report", "View Error Log", "Close"};
 
 	/** Text area for Exception. */
 	private static final JTextArea textArea = new JTextArea(7, 30);
@@ -67,7 +70,7 @@ public class ErrorHandler {
 	/** Error popup objects. */
 	private static final Object[]
 		message  = { desc, scroll },
-		messageR = { descR, scroll };
+		messageReport = { descReport, scroll };
 
 	// This class should not be instantiated.
 	private ErrorHandler() {}
@@ -107,72 +110,106 @@ public class ErrorHandler {
 		// display popup
 		try {
 			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
+			Desktop desktop = null;
+			boolean isBrowseSupported = false, isOpenSupported = false;
 			if (Desktop.isDesktopSupported()) {
-				// try to open the log file and/or issues webpage
-				if (report) {
-					// ask to report the error
-					int n = JOptionPane.showOptionDialog(null, messageR, title,
-							JOptionPane.DEFAULT_OPTION, JOptionPane.ERROR_MESSAGE,
-							null, optionsR, optionsR[2]);
-					if (n == 0) {
-						// auto-fill debug information
-						String issueTitle = (error != null) ? error : e.getMessage();
-						StringBuilder sb = new StringBuilder();
-						Properties props = new Properties();
-						props.load(ResourceLoader.getResourceAsStream(Options.VERSION_FILE));
-						String version = props.getProperty("version");
-						if (version != null && !version.equals("${pom.version}")) {
-							sb.append("**Version:** ");
-							sb.append(version);
-							sb.append('\n');
-						}
-						String timestamp = props.getProperty("build.date");
-						if (timestamp != null &&
-						    !timestamp.equals("${maven.build.timestamp}") && !timestamp.equals("${timestamp}")) {
-							sb.append("**Build date:** ");
-							sb.append(timestamp);
-							sb.append('\n');
-						}
-						sb.append("**OS:** ");
-						sb.append(System.getProperty("os.name"));
-						sb.append(" (");
-						sb.append(System.getProperty("os.arch"));
-						sb.append(")\n");
-						sb.append("**JRE:** ");
-						sb.append(System.getProperty("java.version"));
-						sb.append('\n');
-						if (error != null) {
-							sb.append("**Error:** `");
-							sb.append(error);
-							sb.append("`\n");
-						}
-						if (trace != null) {
-							sb.append("**Stack trace:**");
-							sb.append("\n```\n");
-							sb.append(trace);
-							sb.append("```");
-						}
-						URI uri = URI.create(String.format(Options.ISSUES_URL,
-								URLEncoder.encode(issueTitle, "UTF-8"),
-								URLEncoder.encode(sb.toString(), "UTF-8")));
-						Desktop.getDesktop().browse(uri);
-					} else if (n == 1)
-						Desktop.getDesktop().open(Options.LOG_FILE);
-				} else {
-					// don't report the error
+				desktop = Desktop.getDesktop();
+				isBrowseSupported = desktop.isSupported(Desktop.Action.BROWSE);
+				isOpenSupported = desktop.isSupported(Desktop.Action.OPEN);
+			}
+			if (desktop != null && (isOpenSupported || (report && isBrowseSupported))) {  // try to open the log file and/or issues webpage
+				if (report && isBrowseSupported) {  // ask to report the error
+					if (isOpenSupported) {  // also ask to open the log
+						int n = JOptionPane.showOptionDialog(null, messageReport, title,
+								JOptionPane.DEFAULT_OPTION, JOptionPane.ERROR_MESSAGE,
+								null, optionsLogReport, optionsLogReport[2]);
+						if (n == 0)
+							desktop.browse(getIssueURI(error, e, trace));
+						else if (n == 1)
+							desktop.open(Options.LOG_FILE);
+					} else {  // only ask to report the error
+						int n = JOptionPane.showOptionDialog(null, message, title,
+								JOptionPane.DEFAULT_OPTION, JOptionPane.ERROR_MESSAGE,
+								null, optionsReport, optionsReport[1]);
+						if (n == 0)
+							desktop.browse(getIssueURI(error, e, trace));
+					}
+				} else {  // don't report the error
 					int n = JOptionPane.showOptionDialog(null, message, title,
 							JOptionPane.DEFAULT_OPTION, JOptionPane.ERROR_MESSAGE,
-							null, options, options[1]);
+							null, optionsLog, optionsLog[1]);
 					if (n == 0)
-						Desktop.getDesktop().open(Options.LOG_FILE);
+						desktop.open(Options.LOG_FILE);
 				}
-			} else {
-				// display error only
-				JOptionPane.showMessageDialog(null, report ? messageR : message,
+			} else {  // display error only
+				JOptionPane.showMessageDialog(null, report ? messageReport : message,
 						title, JOptionPane.ERROR_MESSAGE);
 			}
 		} catch (Exception e1) {
-			Log.error("Error opening crash popup.", e1);
+			Log.error("An error occurred in the crash popup.", e1);
+		}
+	}
+
+	/**
+	 * Returns the issue reporting URI.
+	 * This will auto-fill the report with the relevant information if possible.
+	 * @param error a description of the error
+	 * @param e the exception causing the error
+	 * @param trace the stack trace
+	 * @return the created URI
+	 */
+	private static URI getIssueURI(String error, Throwable e, String trace) {
+		// generate report information
+		String issueTitle = (error != null) ? error : e.getMessage();
+		StringBuilder sb = new StringBuilder();
+		try {
+			// read version and build date from version file, if possible
+			Properties props = new Properties();
+			props.load(ResourceLoader.getResourceAsStream(Options.VERSION_FILE));
+			String version = props.getProperty("version");
+			if (version != null && !version.equals("${pom.version}")) {
+				sb.append("**Version:** ");
+				sb.append(version);
+				sb.append('\n');
+			}
+			String timestamp = props.getProperty("build.date");
+			if (timestamp != null &&
+			    !timestamp.equals("${maven.build.timestamp}") && !timestamp.equals("${timestamp}")) {
+				sb.append("**Build date:** ");
+				sb.append(timestamp);
+				sb.append('\n');
+			}
+		} catch (IOException e1) {
+			Log.warn("Could not read version file.", e1);
+		}
+		sb.append("**OS:** ");
+		sb.append(System.getProperty("os.name"));
+		sb.append(" (");
+		sb.append(System.getProperty("os.arch"));
+		sb.append(")\n");
+		sb.append("**JRE:** ");
+		sb.append(System.getProperty("java.version"));
+		sb.append('\n');
+		if (error != null) {
+			sb.append("**Error:** `");
+			sb.append(error);
+			sb.append("`\n");
+		}
+		if (trace != null) {
+			sb.append("**Stack trace:**");
+			sb.append("\n```\n");
+			sb.append(trace);
+			sb.append("```");
+		}
+
+		// return auto-filled URI
+		try {
+			return URI.create(String.format(Options.ISSUES_URL,
+					URLEncoder.encode(issueTitle, "UTF-8"),
+					URLEncoder.encode(sb.toString(), "UTF-8")));
+		} catch (UnsupportedEncodingException e1) {
+			Log.warn("URLEncoder failed to encode the auto-filled issue report URL.");
+			return URI.create(String.format(Options.ISSUES_URL, "", ""));
 		}
 	}
 }

src/itdelatrisu/opsu/states/MainMenu.java

@@ -196,7 +196,7 @@ public class MainMenu extends BasicGameState {
 
 		// initialize repository button
 		float startX = width * 0.997f, startY = height * 0.997f;
-		if (Desktop.isDesktopSupported()) {  // only if a webpage can be opened
+		if (Desktop.isDesktopSupported() && Desktop.getDesktop().isSupported(Desktop.Action.BROWSE)) {  // only if a webpage can be opened
 			Image repoImg = GameImage.REPOSITORY.getImage();
 			repoButton = new MenuButton(repoImg,
 					startX - repoImg.getWidth(), startY - repoImg.getHeight()
@@ -501,7 +501,9 @@ public class MainMenu extends BasicGameState {
 		else if (repoButton != null && repoButton.contains(x, y)) {
 			try {
 				Desktop.getDesktop().browse(Options.REPOSITORY_URI);
-			} catch (IOException | UnsupportedOperationException e) {
+			} catch (UnsupportedOperationException e) {
+				UI.sendBarNotification("The repository web page could not be opened.");
+			} catch (IOException e) {
 				ErrorHandler.error("Could not browse to repository URI.", e, false);
 			}
 		}

src/itdelatrisu/opsu/states/OptionsMenu.java

@@ -200,12 +200,12 @@ public class OptionsMenu extends BasicGameState {
 	@Override
 	public void render(GameContainer container, StateBasedGame game, Graphics g)
 			throws SlickException {
-		g.setBackground(Utils.COLOR_BLACK_ALPHA);
-
 		int width = container.getWidth();
 		int height = container.getHeight();
 		int mouseX = input.getMouseX(), mouseY = input.getMouseY();
-		float lineY = OptionTab.DISPLAY.button.getY() + (GameImage.MENU_TAB.getImage().getHeight() / 2f);
+
+		// background
+		GameImage.OPTIONS_BG.getImage().draw();
 
 		// title
 		float marginX = width * 0.015f, marginY = height * 0.01f;
@@ -213,9 +213,6 @@ public class OptionsMenu extends BasicGameState {
 		Utils.FONT_DEFAULT.drawString(marginX, marginY + Utils.FONT_XLARGE.getLineHeight() * 0.92f,
 				"Change the way opsu! behaves", Color.white);
 
-		// background
-		GameImage.OPTIONS_BG.getImage().draw(0, lineY);
-
 		// game options
 		g.setLineWidth(1f);
 		GameOption hoverOption = (keyEntryLeft)  ? GameOption.KEY_LEFT :
@@ -243,6 +240,7 @@ public class OptionsMenu extends BasicGameState {
 				currentTab.getName(), true, false);
 		g.setColor(Color.white);
 		g.setLineWidth(2f);
+		float lineY = OptionTab.DISPLAY.button.getY() + (GameImage.MENU_TAB.getImage().getHeight() / 2f);
 		g.drawLine(0, lineY, width, lineY);
 		g.resetLineWidth();
 

src/itdelatrisu/opsu/states/Splash.java

@@ -49,7 +49,7 @@ import org.newdawn.slick.state.StateBasedGame;
  */
 public class Splash extends BasicGameState {
 	/** Minimum time, in milliseconds, to display the splash screen (and fade in the logo). */
-	private static final int MIN_SPLASH_TIME = 300;
+	private static final int MIN_SPLASH_TIME = 400;
 
 	/** Whether or not loading has completed. */
 	private boolean finished = false;

src/itdelatrisu/opsu/ui/Cursor.java

@@ -135,8 +135,6 @@ public class Cursor {
 		if (cursorScale != 1f) {
 			cursor = cursor.getScaledCopy(cursorScale);
 			cursorTrail = cursorTrail.getScaledCopy(cursorScale);
-			if (hasMiddle)
-				cursorMiddle = cursorMiddle.getScaledCopy(cursorScale);
 		}
 
 		// TODO: use an image buffer

src/itdelatrisu/opsu/ui/UI.java

@@ -26,6 +26,7 @@ import itdelatrisu.opsu.Utils;
 import itdelatrisu.opsu.audio.SoundController;
 import itdelatrisu.opsu.beatmap.BeatmapParser;
 import itdelatrisu.opsu.replay.ReplayImporter;
+import itdelatrisu.opsu.ui.animations.AnimatedValue;
 import itdelatrisu.opsu.ui.animations.AnimationEquation;
 
 import javax.swing.JOptionPane;
@@ -71,11 +72,8 @@ public class UI {
 	/** Whether or not to check the current tooltip for line breaks. */
 	private static boolean tooltipNewlines;
 
-	/** The current tooltip timer. */
-	private static int tooltipTimer = -1;
-
-	/** Duration, in milliseconds, to fade tooltips. */
-	private static final int TOOLTIP_FADE_TIME = 200;
+	/** The alpha level of the current tooltip (if any). */
+	private static AnimatedValue tooltipAlpha = new AnimatedValue(200, 0f, 1f, AnimationEquation.LINEAR);
 
 	// game-related variables
 	private static GameContainer container;
@@ -120,8 +118,7 @@ public class UI {
 		cursor.update(delta);
 		updateVolumeDisplay(delta);
 		updateBarNotification(delta);
-		if (tooltipTimer > 0)
-			tooltipTimer -= delta;
+		tooltipAlpha.update(-delta);
 	}
 
 	/**
@@ -363,12 +360,7 @@ public class UI {
 		if (s != null) {
 			tooltip = s;
 			tooltipNewlines = newlines;
-			if (tooltipTimer <= 0)
-				tooltipTimer = delta;
-			else
-				tooltipTimer += delta * 2;
-			if (tooltipTimer > TOOLTIP_FADE_TIME)
-				tooltipTimer = TOOLTIP_FADE_TIME;
+			tooltipAlpha.update(delta * 2);
 		}
 	}
 
@@ -378,7 +370,7 @@ public class UI {
 	 * @param g the graphics context
 	 */
 	public static void drawTooltip(Graphics g) {
-		if (tooltipTimer <= 0 || tooltip == null)
+		if (tooltipAlpha.getTime() == 0 || tooltip == null)
 			return;
 
 		int containerWidth = container.getWidth(), containerHeight = container.getHeight();
@@ -411,7 +403,7 @@ public class UI {
 			y = margin;
 
 		// draw tooltip text inside a filled rectangle
-		float alpha = (float) tooltipTimer / TOOLTIP_FADE_TIME;
+		float alpha = tooltipAlpha.getValue();
 		float oldAlpha = Utils.COLOR_BLACK_ALPHA.a;
 		Utils.COLOR_BLACK_ALPHA.a = alpha;
 		g.setColor(Utils.COLOR_BLACK_ALPHA);
@@ -433,7 +425,7 @@ public class UI {
 	 * Resets the tooltip.
 	 */
 	public static void resetTooltip() {
-		tooltipTimer = -1;
+		tooltipAlpha.setTime(0);
 		tooltip = null;
 	}