/**
* Creates the tool context denoting the range of samples that should be analysed by a tool.
*
* @return a tool context, never <code>null</code>.
*/
private ToolContext createToolContext() {
int startOfDecode = -1;
int endOfDecode = -1;
final int dataLength = this.dataContainer.getValues().length;
if (this.dataContainer.isCursorsEnabled()) {
if (this.dataContainer.isCursorPositionSet(0)) {
final Long cursor1 = this.dataContainer.getCursorPosition(0);
startOfDecode = this.dataContainer.getSampleIndex(cursor1.longValue()) - 1;
}
if (this.dataContainer.isCursorPositionSet(1)) {
final Long cursor2 = this.dataContainer.getCursorPosition(1);
endOfDecode = this.dataContainer.getSampleIndex(cursor2.longValue()) + 1;
}
} else {
startOfDecode = 0;
endOfDecode = dataLength;
}
startOfDecode = Math.max(0, startOfDecode);
if ((endOfDecode < 0) || (endOfDecode >= dataLength)) {
endOfDecode = dataLength - 1;
}
return new DefaultToolContext(startOfDecode, endOfDecode);
}
/**
* Goes to the current cursor position of the cursor with the given index.
*
* @param aCursorIdx the index of the cursor to go to, >= 0 && < 10.
*/
public void gotoCursorPosition(final int aCursorIdx) {
if ((this.mainFrame != null) && this.dataContainer.isCursorsEnabled()) {
final Long cursorPosition = this.dataContainer.getCursorPosition(aCursorIdx);
if (cursorPosition != null) {
this.mainFrame.gotoPosition(cursorPosition.longValue());
}
}
}
/** Goes to the current cursor position of the last available cursor. */
public void gotoLastAvailableCursor() {
if ((this.mainFrame != null) && this.dataContainer.isCursorsEnabled()) {
for (int c = CapturedData.MAX_CURSORS - 1; c >= 0; c--) {
if (this.dataContainer.isCursorPositionSet(c)) {
final Long cursorPosition = this.dataContainer.getCursorPosition(c);
if (cursorPosition != null) {
this.mainFrame.gotoPosition(cursorPosition.longValue());
}
break;
}
}
}
}
/**
* Sets the cursor position of the cursor with the given index.
*
* @param aCursorIdx the index of the cursor to set, >= 0 && < 10;
* @param aLocation the mouse location on screen where the cursor should become, cannot be <code>
* null</code>.
*/
public void setCursorPosition(final int aCursorIdx, final Point aLocation) {
// Implicitly enable cursor mode, the user already had made its
// intensions clear that he want to have this by opening up the
// context menu anyway...
setCursorMode(true);
if (this.mainFrame != null) {
// Convert the mouse-position to a sample index...
final long sampleIdx = this.mainFrame.convertMousePositionToSampleIndex(aLocation);
this.dataContainer.setCursorPosition(aCursorIdx, Long.valueOf(sampleIdx));
fireCursorChangedEvent(aCursorIdx, aLocation.x);
}
updateActions();
}