{
private ViewportRanges ranges;
+ private int xdiff; // when dragging, difference in alignment units between
+ // start residue and original mouse click position
+
+ private int ydiff; // when dragging, difference in alignment units between
+ // start sequence and original mouse click position
+
/**
* Create an OverviewDimensions object
*
public void updateViewportFromMouse(int mousex, int mousey,
HiddenSequences hiddenSeqs, HiddenColumns hiddenCols)
{
- int x = mousex;
- int y = mousey;
+ resetAlignmentDims();
+
+ // convert mousex and mousey to alignment units as well as
+ // translating to top left corner of viewport - this is an absolute position
+ int xAsRes = getLeftXFromCentreX(mousex, hiddenCols);
+ int yAsSeq = getTopYFromCentreY(mousey, hiddenSeqs);
+
+ // convert to visible positions
+ int visXAsRes = hiddenCols.absoluteToVisibleColumn(xAsRes);
+ yAsSeq = hiddenSeqs.adjustForHiddenSeqs(
+ hiddenSeqs.findIndexWithoutHiddenSeqs(yAsSeq));
+ yAsSeq = Math.max(yAsSeq, 0); // -1 if before first visible sequence
+ int visYAsSeq = hiddenSeqs.findIndexWithoutHiddenSeqs(yAsSeq);
+ visYAsSeq = Math.max(visYAsSeq, 0); // -1 if before first visible sequence
+
+ // update viewport accordingly
+ updateViewportFromTopLeft(visXAsRes, visYAsSeq, hiddenSeqs, hiddenCols);
+ }
+ @Override
+ public void adjustViewportFromMouse(int mousex, int mousey,
+ HiddenSequences hiddenSeqs, HiddenColumns hiddenCols)
+ {
resetAlignmentDims();
- if (x < 0)
+ // calculate translation in pixel terms:
+ // get mouse location in viewport coords, add translation in viewport
+ // coords,
+ // convert back to pixel coords
+ int vpx = Math.round((float) mousex * alwidth / width);
+ int visXAsRes = hiddenCols.absoluteToVisibleColumn(vpx) + xdiff;
+
+ int vpy = Math.round(mousey * heightRatio);
+ int visYAsRes = hiddenSeqs.findIndexWithoutHiddenSeqs(vpy) + ydiff;
+
+ // update viewport accordingly
+ updateViewportFromTopLeft(visXAsRes, visYAsRes, hiddenSeqs, hiddenCols);
+ }
+
+ /**
+ * {@inheritDoc} Callers should have already called resetAlignmentDims to
+ * refresh alwidth, alheight and width/height ratios
+ */
+ @Override
+ protected void updateViewportFromTopLeft(int leftx, int topy,
+ HiddenSequences hiddenSeqs, HiddenColumns hiddenCols)
+ {
+ int visXAsRes = leftx;
+ int visYAsSeq = topy;
+
+ if (visXAsRes < 0)
{
- x = 0;
+ visXAsRes = 0;
}
- if (y < 0)
+ if (visYAsSeq < 0)
{
- y = 0;
+ visYAsSeq = 0;
}
- //
- // Convert x value to residue position
- //
-
- // need to determine where scrollCol should be, given x
- // to do this also need to know width of viewport, and some hidden column
- // correction
+ if (ranges.isWrappedMode())
+ {
+ visYAsSeq = 0; // sorry, no vertical scroll when wrapped
+ }
- // convert x to residues - this is an absolute position
- int xAsRes = Math.round((float) x * alwidth / width);
+ // Determine where scrollCol should be, given visXAsRes
// get viewport width in residues
int vpwidth = ranges.getViewportWidth();
- // get where x should be when accounting for hidden cols
- // if x is in a hidden col region, shift to left - but we still need
- // absolute position
- // so convert back after getting visible region position
- int visXAsRes = hiddenCols.findColumnPosition(xAsRes);
-
// check in case we went off the edge of the alignment
- int visAlignWidth = hiddenCols.findColumnPosition(alwidth - 1);
+ int visAlignWidth = hiddenCols.absoluteToVisibleColumn(alwidth - 1);
if (visXAsRes + vpwidth - 1 > visAlignWidth)
{
// went past the end of the alignment, adjust backwards
// if last position was before the end of the alignment, need to update
- if ((ranges.getEndRes() + vpwidth - 1) < visAlignWidth)
+ if (ranges.getEndRes() < visAlignWidth)
{
- visXAsRes = hiddenCols.findColumnPosition(hiddenCols
- .subtractVisibleColumns(vpwidth - 1, alwidth - 1));
+ visXAsRes = hiddenCols.absoluteToVisibleColumn(hiddenCols
+ .offsetByVisibleColumns(-(vpwidth - 1), alwidth - 1));
}
else
{
}
}
- //
- // Convert y value to sequence position
- //
-
- // convert y to residues
- int yAsSeq = Math.round((float) y * alheight / sequencesHeight);
+ // Determine where scrollRow should be, given visYAsSeq
// get viewport height in sequences
int vpheight = ranges.getViewportHeight();
- // get where y should be when accounting for hidden rows
- // if y is in a hidden row region, shift up - but we still need absolute
- // position,
- // so convert back after getting visible region position
- yAsSeq = hiddenSeqs.adjustForHiddenSeqs(hiddenSeqs
- .findIndexWithoutHiddenSeqs(yAsSeq));
-
// check in case we went off the edge of the alignment
int visAlignHeight = hiddenSeqs.findIndexWithoutHiddenSeqs(alheight);
- int visYAsSeq = hiddenSeqs.findIndexWithoutHiddenSeqs(yAsSeq);
+
if (visYAsSeq + vpheight - 1 > visAlignHeight)
{
// went past the end of the alignment, adjust backwards
- if ((ranges.getEndSeq() + vpheight - 1) < visAlignHeight)
+ if (ranges.getEndSeq() < visAlignHeight)
{
- visYAsSeq = hiddenSeqs.findIndexWithoutHiddenSeqs(hiddenSeqs
- .subtractVisibleRows(vpheight - 1, alheight - 1));
+ visYAsSeq = hiddenSeqs.findIndexWithoutHiddenSeqs(
+ hiddenSeqs.subtractVisibleRows(vpheight - 1, alheight - 1));
}
else
{
}
// update viewport
- ranges.setStartRes(visXAsRes);
- ranges.setStartSeq(visYAsSeq);
-
+ ranges.setStartResAndSeq(visXAsRes, visYAsSeq);
}
/**
HiddenColumns hiddenCols)
{
// work with absolute values of startRes and endRes
- int startRes = hiddenCols.adjustForHiddenColumns(ranges.getStartRes());
- int endRes = hiddenCols.adjustForHiddenColumns(ranges.getEndRes());
+ int startRes = hiddenCols.visibleToAbsoluteColumn(ranges.getStartRes());
+ int endRes = hiddenCols.visibleToAbsoluteColumn(ranges.getEndRes());
// work with absolute values of startSeq and endSeq
int startSeq = hiddenSeqs.adjustForHiddenSeqs(ranges.getStartSeq());
int endSeq = hiddenSeqs.adjustForHiddenSeqs(ranges.getEndSeq());
- setBoxPosition(startRes, startSeq, endRes - startRes + 1, endSeq
- - startSeq + 1);
+ setBoxPosition(startRes, startSeq, endRes - startRes + 1,
+ endSeq - startSeq + 1);
}
@Override
public AlignmentColsCollectionI getColumns(AlignmentI al)
{
- return new AllColsCollection(0,
- ranges.getAbsoluteAlignmentWidth() - 1, al);
+ return new AllColsCollection(0, ranges.getAbsoluteAlignmentWidth() - 1,
+ al);
}
@Override
public AlignmentRowsCollectionI getRows(AlignmentI al)
{
- return new AllRowsCollection(0,
- ranges.getAbsoluteAlignmentHeight() - 1,
+ return new AllRowsCollection(0, ranges.getAbsoluteAlignmentHeight() - 1,
al);
}
{
alwidth = ranges.getAbsoluteAlignmentWidth();
alheight = ranges.getAbsoluteAlignmentHeight();
+
+ widthRatio = (float) alwidth / width;
+ heightRatio = (float) alheight / sequencesHeight;
+ }
+
+ /**
+ * {@inheritDoc} Callers should have already called resetAlignmentDims to
+ * refresh widthRatio
+ */
+ @Override
+ protected int getLeftXFromCentreX(int mousex, HiddenColumns hidden)
+ {
+ int vpx = Math.round((float) mousex * alwidth / width);
+ return hidden.offsetByVisibleColumns(-ranges.getViewportWidth() / 2,
+ vpx);
+ }
+
+ /**
+ * {@inheritDoc} Callers should have already called resetAlignmentDims to
+ * refresh heightRatio
+ */
+ @Override
+ protected int getTopYFromCentreY(int mousey, HiddenSequences hidden)
+ {
+ int vpy = Math.round(mousey * heightRatio);
+ return hidden.subtractVisibleRows(ranges.getViewportHeight() / 2, vpy);
}
+
+ @Override
+ public void setDragPoint(int x, int y, HiddenSequences hiddenSeqs,
+ HiddenColumns hiddenCols)
+ {
+ resetAlignmentDims();
+
+ // get alignment position of x and box (can get directly from vpranges) and
+ // calculate difference between the positions
+ int vpx = Math.round(x * widthRatio);
+ int vpy = Math.round(y * heightRatio);
+
+ xdiff = ranges.getStartRes() - hiddenCols.absoluteToVisibleColumn(vpx);
+ ydiff = ranges.getStartSeq()
+ - hiddenSeqs.findIndexWithoutHiddenSeqs(vpy);
+ }
+
}
git://source.jalview.org / jalview.git / blobdiff