int SegmentMover::mouseMoveEvent(QMouseEvent *e)
{
// No need to propagate.
e->accept();
// If we aren't moving anything, bail.
if (!getChangingSegment())
return RosegardenScrollView::NoFollow;
QPoint pos = m_canvas->viewportToContents(e->pos());
setSnapTime(e, SnapGrid::SnapToBeat);
// If shift isn't being held down
if ((e->modifiers() & Qt::ShiftModifier) == 0) {
setContextHelp(tr("Hold Shift to avoid snapping to beat grid"));
} else {
clearContextHelp();
}
const SnapGrid &grid = m_canvas->grid();
// Compute how far we've moved vertically.
const int startTrackPos = grid.getYBin(m_clickPoint.y());
const int currentTrackPos = grid.getYBin(pos.y());
const int deltaTrack = currentTrackPos - startTrackPos;
const int dx = pos.x() - m_clickPoint.x();
Composition &comp = m_doc->getComposition();
CompositionModelImpl::ChangingSegmentSet &changingSegments =
m_canvas->getModel()->getChangingSegments();
// For each changing segment, move it
for (CompositionModelImpl::ChangingSegmentSet::iterator it =
changingSegments.begin();
it != changingSegments.end();
++it) {
ChangingSegmentPtr changingSegment = *it;
const timeT newStartTime = grid.snapX(changingSegment->savedRect().x() + dx);
const int newX = int(grid.getRulerScale()->getXForTime(newStartTime));
int trackPos = grid.getYBin(changingSegment->savedRect().y()) + deltaTrack;
if (trackPos < 0)
trackPos = 0;
if (trackPos >= (int)comp.getNbTracks())
trackPos = comp.getNbTracks() - 1;
const int newY = grid.getYBinCoordinate(trackPos);
changingSegment->moveTo(newX, newY);
m_changeMade = true;
}
if (m_changeMade) {
// Make sure the segments are redrawn.
m_canvas->slotUpdateAll();
}
// Draw the guides
int guideX = getChangingSegment()->rect().x();
int guideY = getChangingSegment()->rect().y();
m_canvas->drawGuides(guideX, guideY);
// Format and draw the text float
timeT guideTime = grid.snapX(guideX);
RealTime time = comp.getElapsedRealTime(guideTime);
int bar, beat, fraction, remainder;
comp.getMusicalTimeForAbsoluteTime(guideTime, bar, beat, fraction, remainder);
QString timeString = QString("%1.%2s (%3, %4, %5)")
.arg(time.sec).arg(time.msec(), 3, 10, QChar('0'))
.arg(bar + 1).arg(beat).arg(fraction);
m_canvas->drawTextFloat(guideX + 10, guideY - 30, timeString);
m_canvas->update();
return RosegardenScrollView::FollowHorizontal |
RosegardenScrollView::FollowVertical;
}
int
SegmentSelector::mouseMoveEvent(QMouseEvent *e)
{
// No need to propagate.
e->accept();
QPoint pos = m_canvas->viewportToContents(e->pos());
m_lastMousePos = pos;
// If no buttons are pressed, update the context help and bail.
// Note: Mouse tracking must be on for this to work. See
// QWidget::setMouseTracking().
if (e->buttons() == Qt::NoButton) {
setContextHelpFor(pos, e->modifiers());
return RosegardenScrollView::NoFollow;
}
// If another tool has taken over, delegate.
if (m_dispatchTool)
return m_dispatchTool->mouseMoveEvent(e);
// We only handle the left button. The middle button is handled by
// the dispatch tool (segment pencil) or ignored.
if (e->buttons() != Qt::LeftButton)
return RosegardenScrollView::NoFollow;
// If we aren't moving anything, rubber band.
if (!getChangingSegment()) {
m_canvas->drawSelectionRectPos2(pos);
m_canvas->getModel()->selectionHasChanged();
return RosegardenScrollView::FollowHorizontal |
RosegardenScrollView::FollowVertical;
}
// Moving
// If the segment that was clicked on isn't selected, bail.
if (!m_canvas->getModel()->isSelected(getChangingSegment()->getSegment()))
return RosegardenScrollView::NoFollow;
const int dx = pos.x() - m_clickPoint.x();
const int dy = pos.y() - m_clickPoint.y();
const int inertiaDistance = 8;
// If we've not already exceeded the inertia distance, and we
// still haven't, bail.
if (!m_passedInertiaEdge &&
abs(dx) < inertiaDistance &&
abs(dy) < inertiaDistance) {
return RosegardenScrollView::NoFollow;
}
m_passedInertiaEdge = true;
m_canvas->viewport()->setCursor(Qt::SizeAllCursor);
#if 0
// ??? Moving to mouseReleaseEvent().
if (m_segmentCopyMode && !m_segmentQuickCopyDone) {
// Make copies of the original Segment(s). These copies will
// take the place of the originals as the user drags the
// the originals to a new location.
MacroCommand *macroCommand = 0;
if (m_segmentCopyingAsLink) {
macroCommand = new MacroCommand(
SegmentQuickLinkCommand::getGlobalName());
} else {
macroCommand = new MacroCommand(
SegmentQuickCopyCommand::getGlobalName());
}
SegmentSelection selectedItems = m_canvas->getSelectedSegments();
// for each selected segment
for (SegmentSelection::iterator it = selectedItems.begin();
it != selectedItems.end();
++it) {
Segment *segment = *it;
Command *command = 0;
if (m_segmentCopyingAsLink) {
command = new SegmentQuickLinkCommand(segment);
} else {
// if it's a link, copy as link
if (segment->isTrulyLinked())
command = new SegmentQuickLinkCommand(segment);
else // copy as a non-link segment
command = new SegmentQuickCopyCommand(segment);
}
macroCommand->addCommand(command);
}
CommandHistory::getInstance()->addCommand(macroCommand);
m_canvas->update();
// Make sure we don't do it again.
m_segmentQuickCopyDone = true;
}
#endif
setSnapTime(e, SnapGrid::SnapToBeat);
// start move on selected items only once
if (!m_selectionMoveStarted) {
m_selectionMoveStarted = true;
m_canvas->getModel()->startChangeSelection(
m_segmentCopyMode ? CompositionModelImpl::ChangeCopy :
CompositionModelImpl::ChangeMove);
// The call to startChangeSelection() generates a new changing segment.
// Get it.
ChangingSegmentPtr newChangingSegment =
m_canvas->getModel()->findChangingSegment(
getChangingSegment()->getSegment());
if (newChangingSegment) {
// Toss the local "changing" segment since it isn't going to
// be moving at all. Swap it for the same changing segment in
// CompositionModelImpl. That one *will* be moving and can be
// used to drive the guides.
setChangingSegment(newChangingSegment);
}
}
// Display help for the Shift key.
setContextHelpFor(pos, e->modifiers());
Composition &comp = m_doc->getComposition();
const int startDragTrackPos = m_canvas->grid().getYBin(m_clickPoint.y());
const int currentTrackPos = m_canvas->grid().getYBin(pos.y());
const int trackDiff = currentTrackPos - startDragTrackPos;
CompositionModelImpl::ChangingSegmentSet &changingSegments =
m_canvas->getModel()->getChangingSegments();
// For each changing segment
for (CompositionModelImpl::ChangingSegmentSet::iterator it =
changingSegments.begin();
it != changingSegments.end();
++it) {
ChangingSegmentPtr changingSegment = *it;
const timeT newStartTime = m_canvas->grid().snapX(
changingSegment->savedRect().x() + dx);
const int newX = lround(
m_canvas->grid().getRulerScale()->getXForTime(newStartTime));
int newTrackPos = m_canvas->grid().getYBin(
changingSegment->savedRect().y()) + trackDiff;
// Limit to [0, comp.getNbTracks()-1].
if (newTrackPos < 0)
newTrackPos = 0;
if (newTrackPos > static_cast<int>(comp.getNbTracks()) - 1)
newTrackPos = comp.getNbTracks() - 1;
const int newY = m_canvas->grid().getYBinCoordinate(newTrackPos);
changingSegment->moveTo(newX, newY);
m_changeMade = true;
}
if (m_changeMade) {
// Make sure the segments are redrawn.
// Note: The update() call below doesn't cause the segments to be
// redrawn. It just updates from the cache.
m_canvas->slotUpdateAll();
}
// Guides
const int guideX = getChangingSegment()->rect().x();
const int guideY = getChangingSegment()->rect().y();
m_canvas->drawGuides(guideX, guideY);
// Text Float
const timeT guideTime = m_canvas->grid().snapX(guideX);
RealTime time = comp.getElapsedRealTime(guideTime);
QString msecs;
msecs.sprintf("%03d", time.msec());
int bar;
int beat;
int fraction;
int remainder;
comp.getMusicalTimeForAbsoluteTime(guideTime, bar, beat, fraction, remainder);
QString posString = QString("%1.%2s (%3, %4, %5)").
arg(time.sec).arg(msecs).arg(bar + 1).arg(beat).arg(fraction);
m_canvas->drawTextFloat(guideX + 10, guideY - 30, posString);
m_canvas->update();
return RosegardenScrollView::FollowHorizontal |
RosegardenScrollView::FollowVertical;
}