public void clearSelected() {
if (pageLines != null) {
for (LineText lineText : pageLines) {
lineText.clearSelected();
}
}
if (sortedPageLines != null) {
for (LineText lineText : sortedPageLines) {
lineText.clearSelected();
}
}
// check optional content.
if (optionalPageLines != null) {
// iterate over optional content keys and extract text from visible groups
Set<OptionalContents> keys = optionalPageLines.keySet();
ArrayList<LineText> optionalLines;
for (OptionalContents key : keys) {
if (key != null) {
optionalLines = optionalPageLines.get(key).getAllPageLines();
if (optionalLines != null) {
for (LineText lineText : optionalLines) {
lineText.clearSelected();
}
}
}
}
}
}
/**
* Finds the key (time) of the currently hovered entry, or -1 if none is hovered.
*
* @param p The current position of the mouse.
* @return
*/
private long findHoverEntry(Point p) {
double smallestDistance = HOVER_RADIUS;
long foundHoverEntry = -1;
for (Point point : locations.keySet()) {
double distance = p.distance(point);
if (distance < HOVER_RADIUS) {
if (distance < smallestDistance) {
foundHoverEntry = locations.get(point);
smallestDistance = distance;
}
}
}
return foundHoverEntry;
}
private void doAssert(Map<String, String> expected, PlaybackRunner.StatusCallback cb)
throws AssertionError {
final Component owner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
if (owner == null) {
throw new AssertionError("No component focused");
}
Component eachParent = owner;
final LinkedHashMap<String, String> actual = new LinkedHashMap<String, String>();
while (eachParent != null) {
if (eachParent instanceof TestableUi) {
((TestableUi) eachParent).putInfo(actual);
}
eachParent = eachParent.getParent();
}
Set testedKeys = new LinkedHashSet<String>();
for (String eachKey : expected.keySet()) {
testedKeys.add(eachKey);
final String actualValue = actual.get(eachKey);
final String expectedValue = expected.get(eachKey);
if (!expectedValue.equals(actualValue)) {
throw new AssertionError(
eachKey + " expected: " + expectedValue + " but was: " + actualValue);
}
}
Map<String, String> untested = new HashMap<String, String>();
for (String eachKey : actual.keySet()) {
if (testedKeys.contains(eachKey)) continue;
untested.put(eachKey, actual.get(eachKey));
}
StringBuffer untestedText = new StringBuffer();
for (String each : untested.keySet()) {
if (untestedText.length() > 0) {
untestedText.append(",");
}
untestedText.append(each).append("=").append(untested.get(each));
}
cb.message("Untested info: " + untestedText.toString(), getLine());
}
/**
* Gets the starting time for the displayed range. If there is a fixed starting time, use that,
* otherwise check if there is a range and calculate the starting time from that. Otherwise return
* 0, meaning the data is displayed from the start.
*
* @param range The time in milliseconds that the data should be displayed, going backwards,
* starting from the very end.
* @return The start of the data displaying range in milliseconds.
*/
private long getStartAt(long range) {
if (fixedStartTime > 0) {
return fixedStartTime;
}
if (range <= 0) {
return 0;
}
long end = -1;
for (long time : history.keySet()) {
end = time;
}
long startAt = end - range;
if (startAt < 0) {
startAt = 0;
}
return startAt;
}
/**
* Update the start/end/duration/min/max variables which can be changed when the data changes as
* well when the displayed range changes.
*/
private void updateVars() {
long startAt = getStartAt(currentRange);
long endAt = getEndAt();
int max = 0;
int min = -1;
long start = -1;
long end = -1;
for (Long time : history.keySet()) {
if (time < startAt) {
continue;
}
if (endAt > startAt && time > endAt) {
continue;
}
// Start/End time
if (start == -1) {
start = time;
}
end = time;
// Max/min value
StreamInfoHistoryItem historyObj = history.get(time);
int viewerCount = historyObj.getViewers();
if (viewerCount < min || min == -1) {
min = viewerCount;
}
if (viewerCount == -1) {
min = 0;
}
if (viewerCount > max) {
max = viewerCount;
}
}
maxValue = max;
minValue = min;
startTime = start;
endTime = end;
duration = end - start;
}
private ArrayList<LineText> getAllPageLines() {
ArrayList<LineText> visiblePageLines = new ArrayList<LineText>(pageLines);
// add optional content text that is visible.
// check optional content.
if (optionalPageLines != null) {
// iterate over optional content keys and extract text from visible groups
Set<OptionalContents> keys = optionalPageLines.keySet();
LineText currentLine = new LineText();
visiblePageLines.add(currentLine);
for (OptionalContents key : keys) {
if (key != null) {
ArrayList<LineText> pageLines = optionalPageLines.get(key).getVisiblePageLines(true);
for (LineText lineText : pageLines) {
currentLine.addAll(lineText.getWords());
}
}
}
// recalculate the bounds.
currentLine.getBounds();
}
return visiblePageLines;
}
/**
* Draw the text and graph.
*
* @param g
*/
@Override
public void paintComponent(Graphics g) {
locations.clear();
// Background
g.setColor(background_color);
g.fillRect(0, 0, getWidth(), getHeight());
// This color is used for everything until drawing the points
g.setColor(foreground_color);
// Anti-Aliasing
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
// Font
FontMetrics fontMetrics = g.getFontMetrics(FONT);
int fontHeight = fontMetrics.getHeight();
g.setFont(FONT);
int topTextY = fontMetrics.getAscent();
// Margins
int vMargin = fontHeight + MARGIN;
int hMargin = MARGIN;
// Calculate actual usable size
double width = getWidth() - hMargin * 2;
double height = getHeight() - vMargin * 2;
boolean drawLowerLine = height > -vMargin;
// If there is any data and no hovered entry is shown, draw current
// viewercount
int nowTextX = 0;
if (history != null && hoverEntry == -1) {
Integer viewers = history.get(endTime).getViewers();
long ago = System.currentTimeMillis() - endTime;
String text;
if (ago > CONSIDERED_AS_NOW) {
text = "latest: " + Helper.formatViewerCount(viewers);
} else {
text = "now: " + Helper.formatViewerCount(viewers);
}
if (viewers == -1) {
text = "Stream offline";
}
nowTextX = getWidth() - fontMetrics.stringWidth(text);
g.drawString(text, nowTextX, topTextY);
}
// Default text when no data is present
if (history == null || history.size() < 2) {
String text = "No viewer history yet";
int textWidth = fontMetrics.stringWidth(text);
int y = getHeight() / 2 + fontMetrics.getDescent();
int x = (getWidth() - textWidth) / 2;
boolean drawInfoText = false;
if (history != null && y < topTextY + fontHeight + 4 && x + textWidth + 7 > nowTextX) {
if (drawLowerLine || nowTextX > textWidth + 5) {
if (drawLowerLine) {
y = getHeight() - 2;
} else {
y = topTextY;
}
x = 0;
drawInfoText = true;
}
} else {
drawInfoText = true;
}
if (drawInfoText) {
g.drawString(text, x, y);
}
return;
}
// ----------
// From here only when actual data is to be rendered
// Show info on hovered entry
String maxValueText = "max: " + Helper.formatViewerCount(maxValue);
int maxValueEnd = fontMetrics.stringWidth(maxValueText);
boolean displayMaxValue = true;
if (hoverEntry != -1) {
Integer viewers = history.get(hoverEntry).getViewers();
Date d = new Date(hoverEntry);
String text = "Viewers: " + Helper.formatViewerCount(viewers) + " (" + sdf.format(d) + ")";
if (viewers == -1) {
text = "Stream offline (" + sdf.format(d) + ")";
}
int x = getWidth() - fontMetrics.stringWidth(text);
if (maxValueEnd > x) {
displayMaxValue = false;
}
g.drawString(text, x, topTextY);
}
String minText = "min: " + Helper.formatViewerCount(minValue);
int minTextWidth = fontMetrics.stringWidth(minText);
// Draw Times
if (drawLowerLine) {
String timeText = makeTimesText(startTime, endTime);
int timeTextWidth = fontMetrics.stringWidth(timeText);
int textX = getWidth() - timeTextWidth;
g.drawString(timeText, textX, getHeight() - 1);
if (minValue >= 1000 && timeTextWidth + minTextWidth > width) {
minText = "min: " + minValue / 1000 + "k";
}
}
// Draw min/max if necessary
if (isShowingInfo()) {
if (displayMaxValue) {
g.drawString(maxValueText, 0, topTextY);
}
if (drawLowerLine) {
g.drawString(minText, 0, getHeight() - 1);
} else if (maxValueEnd + minTextWidth + 29 < nowTextX) {
g.drawString(minText, maxValueEnd + 10, topTextY);
}
}
// If height available for the graph is too small, don't draw graph
if (height < 5) {
return;
}
// Calculation factors for calculating the points location
int range = maxValue - minValue;
if (showFullRange) {
range = maxValue;
}
if (range == 0) {
// Prevent division by zero
range = 1;
}
double pixelPerViewer = height / range;
double pixelPerTime = width / duration;
// Go through all entries and calculate positions
int prevX = -1;
int prevY = -1;
Iterator<Entry<Long, StreamInfoHistoryItem>> it = history.entrySet().iterator();
while (it.hasNext()) {
Entry<Long, StreamInfoHistoryItem> entry = it.next();
// Get time and value to draw next
long time = entry.getKey();
if (time < startTime || time > endTime) {
continue;
}
long offsetTime = time - startTime;
int viewers = entry.getValue().getViewers();
if (viewers == -1) {
viewers = 0;
}
// Calculate point location
int x = (int) (hMargin + offsetTime * pixelPerTime);
int y;
if (showFullRange) {
y = (int) (-vMargin + getHeight() - (viewers) * pixelPerViewer);
} else {
y = (int) (-vMargin + getHeight() - (viewers - minValue) * pixelPerViewer);
}
// Draw connecting line
if (prevX != -1) {
g.drawLine(x, y, prevX, prevY);
}
// Save point coordinates to be able to draw the line next loop
prevX = x;
prevY = y;
// Save point locations to draw points and to find entries on hover
locations.put(new Point(x, y), time);
}
// Draw points (after lines, so they are in front)
for (Point point : locations.keySet()) {
int x = point.x;
int y = point.y;
long seconds = locations.get(point);
StreamInfoHistoryItem historyObject = history.get(seconds);
// Highlight hovered entry
if (seconds == hoverEntry) {
g.setColor(HOVER_COLOR);
} else {
// Draw offline points differently
if (!historyObject.isOnline()) {
g.setColor(OFFLINE_COLOR);
} else {
g.setColor(colors.get(seconds));
}
}
g.fillOval(x - POINT_SIZE / 2, y - POINT_SIZE / 2, POINT_SIZE, POINT_SIZE);
}
}