/**
* Right mouse: highlight base. Left mouse: figure dragType, dragFeature, dragStartPos,
* startDragTier
*/
public void mousePressed(MouseEvent e) {
setPos(e.getX(), e.getY());
// show base at right mouse click highlighted (on release - popup menu)
if (MouseButtonEvent.isRightMouseClickNoShift(e)) {
BaseRenderer rend = baseEditorPanel.getRendererAt(tier);
if (rend instanceof SelectableDNARenderer) {
((SelectableDNARenderer) rend).setTargetPos(pos, tier);
baseEditorPanel.repaint();
return;
}
}
if (!MouseButtonEvent.isLeftMouseClick(e)) return;
if (dragStartPos == -1) {
if (e.isControlDown()) dragType = baseEditorPanel.SEQ_SELECT_DRAG;
else dragType = baseEditorPanel.getBoundaryType(pos, tier);
dragFeature = baseEditorPanel.getFeatureAtPosition(pos, tier);
dragStartPos = pos;
startPos = pos;
startDragTier = tier;
if (dragFeature == null
&& ((dragType != baseEditorPanel.SEQ_SELECT_DRAG)
|| startDragTier > baseEditorPanel.getTierCount()
|| startDragTier < 3)) {
resetDragState();
return;
}
if (dragType == baseEditorPanel.START_BOUNDARY) {
/* the 5 prime edge of the feature (exon) can
be moved within limits. These are no farther
in the 3prime direction than the end of the
feature and no farther in the 5prime direction
than the beginning (5prime) of the preceding
intron */
limit_3prime = (int) dragFeature.getEnd();
int lowBound = baseEditorPanel.basePairToPos(dragFeature.getStart());
// subtract one to move into the preceding intron
double[] lowRange = baseEditorPanel.getRangeAtPosition(tier, lowBound - 1);
if (lowRange[0] < 0) limit_5prime = baseEditorPanel.posToBasePair(0);
else limit_5prime = baseEditorPanel.posToBasePair((int) lowRange[0]);
baseEditorPanel.setCursor(Cursor.getPredefinedCursor(Cursor.W_RESIZE_CURSOR));
} else if (dragType == baseEditorPanel.END_BOUNDARY) {
limit_5prime = (int) dragFeature.getStart();
int highBound = baseEditorPanel.basePairToPos((int) dragFeature.getEnd());
double[] highRange = baseEditorPanel.getRangeAtPosition(tier, highBound + 1);
SequenceI seq = baseEditorPanel.getSequenceForTier(tier);
if (highRange[1] > seq.getLength())
limit_3prime = baseEditorPanel.posToBasePair(seq.getLength());
else limit_3prime = baseEditorPanel.posToBasePair((int) highRange[1]);
baseEditorPanel.setCursor(Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR));
} else if (dragType == baseEditorPanel.SEQ_SELECT_DRAG) {
baseEditorPanel.setCursor(Cursor.getPredefinedCursor(Cursor.TEXT_CURSOR));
baseEditorPanel.setSelectBeginPos(pos);
baseEditorPanel.setSelectCurrentPos(pos);
}
}
}
