void SeqSongIndexMatrixView::MouseDown(BPoint where)
{
mMouseDown = DOWN_ON_NOTHING;
mMouseDownIndex = -1;
mMouseDownOnMode = 0;
/* There should never NOT be a props -- that's my window
* object, so it would be quite odd.
*/
SeqSongWinPropertiesI* props = SongWinProperties();
if (!props) return;
_SeqIndexMetric* metric = MetricAt(where, &mMouseDownIndex);
if (!metric) {
props->SetSelections(NULL);
return;
}
mMouseDownOnMode = metric->ModeForPoint(where);
if (mMouseDownOnMode != 0) {
mMouseDown = DOWN_ON_MODE;
return;
}
/* If there is a current selections object and it isn't
* empty, then I maintain it's time range, regardless of
* whether I'm adding to it or replacing it.
*/
SeqSongSelections* selections = props->Selections();
AmRange curRange;
bool selectionsEmpty = true;
if (selections && !selections->IsEmpty() ) {
curRange = selections->TimeRange();
selectionsEmpty = false;
}
selections = NULL;
if (modifiers() & B_SHIFT_KEY) selections = props->Selections();
if (selections) selections = selections->Copy();
if (!selections) selections = SeqSongSelections::New();
if (!selections) return;
selections->SetTimeRange(curRange);
if (selections->IncludesTrack(metric->mTrackId) ) {
mMouseDown = DOWN_ON_SELECTED_TRACK;
selections->RemoveTrack(metric->mTrackId);
} else {
mMouseDown = DOWN_ON_DESELECTED_TRACK;
selections->AddTrack(metric->mTrackId);
}
props->SetSelections(selections);
}
void SeqSongIndexMatrixView::MouseMoved(BPoint where,
uint32 code,
const BMessage* dragMessage)
{
int32 buttons = 0;
Window()->CurrentMessage()->FindInt32("buttons", &buttons);
if (buttons == 0) {
if (mMouseDown != DOWN_ON_MODE) mMouseDown = DOWN_ON_NOTHING;
return;
}
if (mMouseDown != DOWN_ON_SELECTED_TRACK && mMouseDown != DOWN_ON_DESELECTED_TRACK)
return;
if (mMouseDownIndex < 0) return;
int32 metricIndex;
_SeqIndexMetric* metric = MetricAt(where, &metricIndex);
if (!metric) return;
/* There should never NOT be a props -- that's my window
* object, so it would be quite odd.
*/
SeqSongWinPropertiesI* props = SongWinProperties();
if (!props) return;
/* The mouse down that initiated this drag should have guaranteed
* there's a selection object. If there isn't, there's probably
* a memory problem, so I just fail. I copy so that I'm not modifying
* the original selections object, which could cause confusion for
* the view updating routines.
*/
SeqSongSelections* selections = props->Selections();
if (!selections) return;
selections = selections->Copy();
if (!selections) return;
/* If I'm selecting tracks, make sure every track between myself
* and the origin is selected. If I'm deselecting, make sure they're
* deselected.
*/
bool changes;
if (mMouseDown == DOWN_ON_DESELECTED_TRACK)
changes = SelectBetween(selections, mMouseDownIndex, metricIndex);
else changes = DeselectBetween(selections, mMouseDownIndex, metricIndex);
if (changes) props->SetSelections(selections);
else delete selections;
}