diff options
Diffstat (limited to 'attic/muse2-oom/muse2/muse/midiedit/ecanvas.cpp')
| -rw-r--r-- | attic/muse2-oom/muse2/muse/midiedit/ecanvas.cpp | 541 |
1 files changed, 541 insertions, 0 deletions
diff --git a/attic/muse2-oom/muse2/muse/midiedit/ecanvas.cpp b/attic/muse2-oom/muse2/muse/midiedit/ecanvas.cpp new file mode 100644 index 00000000..3a10e135 --- /dev/null +++ b/attic/muse2-oom/muse2/muse/midiedit/ecanvas.cpp @@ -0,0 +1,541 @@ +//========================================================= +// MusE +// Linux Music Editor +// $Id: ecanvas.cpp,v 1.8.2.6 2009/05/03 04:14:00 terminator356 Exp $ +// (C) Copyright 2001 Werner Schweer (ws@seh.de) +//========================================================= + +#include <errno.h> +#include <values.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/mman.h> + +#include <QKeyEvent> +#include <QDropEvent> +#include <QEvent> +#include <QMimeData> +#include <QByteArray> +#include <QDrag> + +#include "xml.h" +#include "midieditor.h" +#include "ecanvas.h" +#include "song.h" +#include "event.h" +#include "shortcuts.h" +#include "audio.h" + +//--------------------------------------------------------- +// EventCanvas +//--------------------------------------------------------- + +EventCanvas::EventCanvas(MidiEditor* pr, QWidget* parent, int sx, + int sy, const char* name) + : Canvas(parent, sx, sy, name) + { + editor = pr; + _steprec = false; + _midiin = false; + _playEvents = false; + curVelo = 70; + + setBg(QColor(226,229,229)); + setAcceptDrops(true); + setFocusPolicy(Qt::StrongFocus); + setMouseTracking(true); + + curPart = (MidiPart*)(editor->parts()->begin()->second); + curPartId = curPart->sn(); + } + +//--------------------------------------------------------- +// getCaption +//--------------------------------------------------------- + +QString EventCanvas::getCaption() const + { + int bar1, bar2, xx; + unsigned x; + ///sigmap.tickValues(curPart->tick(), &bar1, &xx, &x); + AL::sigmap.tickValues(curPart->tick(), &bar1, &xx, &x); + ///sigmap.tickValues(curPart->tick() + curPart->lenTick(), &bar2, &xx, &x); + AL::sigmap.tickValues(curPart->tick() + curPart->lenTick(), &bar2, &xx, &x); + + return QString("MusE: Part <") + curPart->name() + + QString("> %1-%2").arg(bar1+1).arg(bar2+1); + } + +//--------------------------------------------------------- +// leaveEvent +//--------------------------------------------------------- + +void EventCanvas::leaveEvent(QEvent*) + { + emit pitchChanged(-1); + emit timeChanged(MAXINT); + } + +//--------------------------------------------------------- +// enterEvent +//--------------------------------------------------------- + +void EventCanvas::enterEvent(QEvent*) + { + emit enterCanvas(); + } + +//--------------------------------------------------------- +// raster +//--------------------------------------------------------- + +QPoint EventCanvas::raster(const QPoint& p) const + { + int x = p.x(); + if (x < 0) + x = 0; + x = editor->rasterVal(x); + int pitch = y2pitch(p.y()); + int y = pitch2y(pitch); + return QPoint(x, y); + } + +//--------------------------------------------------------- +// startUndo +//--------------------------------------------------------- + +void EventCanvas::startUndo(DragType) + { + song->startUndo(); + } + +//--------------------------------------------------------- +// endUndo +//--------------------------------------------------------- + +void EventCanvas::endUndo(DragType dtype, int flags) + { + song->endUndo(flags | ((dtype == MOVE_COPY || dtype == MOVE_CLONE) + ? SC_EVENT_INSERTED : SC_EVENT_MODIFIED)); + } + +//--------------------------------------------------------- +// mouseMove +//--------------------------------------------------------- + +void EventCanvas::mouseMove(const QPoint& pos) + { + emit pitchChanged(y2pitch(pos.y())); + int x = pos.x(); + emit timeChanged(editor->rasterVal(x)); + } + +//--------------------------------------------------------- +// updateSelection +//--------------------------------------------------------- + +void EventCanvas::updateSelection() + { + song->update(SC_SELECTION); + } + +//--------------------------------------------------------- +// songChanged(type) +//--------------------------------------------------------- + +void EventCanvas::songChanged(int flags) + { + // Is it simply a midi controller value adjustment? Forget it. + if(flags == SC_MIDI_CONTROLLER) + return; + + if (flags & ~SC_SELECTION) { + items.clear(); + start_tick = MAXINT; + end_tick = 0; + curPart = 0; + for (iPart p = editor->parts()->begin(); p != editor->parts()->end(); ++p) { + MidiPart* part = (MidiPart*)(p->second); + if (part->sn() == curPartId) + curPart = part; + unsigned stick = part->tick(); + unsigned len = part->lenTick(); + unsigned etick = stick + len; + if (stick < start_tick) + start_tick = stick; + if (etick > end_tick) + end_tick = etick; + + EventList* el = part->events(); + for (iEvent i = el->begin(); i != el->end(); ++i) { + Event e = i->second; + // Added by T356. Do not add events which are either past, or extend past the end of the part. + //if(e.tick() > len) + if(e.endTick() > len) + break; + + if (e.isNote()) { + addItem(part, e); + } + } + } + } + + Event event; + MidiPart* part = 0; + int x = 0; + CItem* nevent = 0; + + int n = 0; // count selections + for (iCItem k = items.begin(); k != items.end(); ++k) { + Event ev = k->second->event(); + bool selected = ev.selected(); + if (selected) { + k->second->setSelected(true); + ++n; + if (!nevent) { + nevent = k->second; + Event mi = nevent->event(); + curVelo = mi.velo(); + } + } + } + start_tick = song->roundDownBar(start_tick); + end_tick = song->roundUpBar(end_tick); + + if (n == 1) { + x = nevent->x(); + event = nevent->event(); + part = (MidiPart*)nevent->part(); + if (curPart != part) { + curPart = part; + curPartId = curPart->sn(); + curPartChanged(); + } + } + emit selectionChanged(x, event, part); + if (curPart == 0) + curPart = (MidiPart*)(editor->parts()->begin()->second); + redraw(); + } + +//--------------------------------------------------------- +// selectAtTick +//--------------------------------------------------------- +void EventCanvas::selectAtTick(unsigned int tick) + { + //Select note nearest tick, if none selected and there are any + if (!items.empty() && selectionSize() == 0) { + iCItem i = items.begin(); + CItem* nearest = i->second; + + while (i != items.end()) { + CItem* cur=i->second; + unsigned int curtk=abs(cur->x() + cur->part()->tick() - tick); + unsigned int neartk=abs(nearest->x() + nearest->part()->tick() - tick); + + if (curtk < neartk) { + nearest=cur; + } + + i++; + } + + if (!nearest->isSelected()) { + selectItem(nearest, true); + songChanged(SC_SELECTION); + } + } + } + +//--------------------------------------------------------- +// track +//--------------------------------------------------------- + +MidiTrack* EventCanvas::track() const + { + return ((MidiPart*)curPart)->track(); + } + + +//--------------------------------------------------------- +// keyPress +//--------------------------------------------------------- + +void EventCanvas::keyPress(QKeyEvent* event) + { + int key = event->key(); + ///if (event->state() & Qt::ShiftButton) + if (((QInputEvent*)event)->modifiers() & Qt::ShiftModifier) + key += Qt::SHIFT; + ///if (event->state() & Qt::AltButton) + if (((QInputEvent*)event)->modifiers() & Qt::AltModifier) + key += Qt::ALT; + ///if (event->state() & Qt::ControlButton) + if (((QInputEvent*)event)->modifiers() & Qt::ControlModifier) + key+= Qt::CTRL; + + // + // Shortcut for DrumEditor & PianoRoll + // Sets locators to selected events + // + if (key == shortcuts[SHRT_LOCATORS_TO_SELECTION].key) { + int tick_max = 0; + int tick_min = INT_MAX; + bool found = false; + + for (iCItem i= items.begin(); i != items.end(); i++) { + if (!i->second->isSelected()) + continue; + + int tick = i->second->x(); + int len = i->second->event().lenTick(); + found = true; + if (tick + len > tick_max) + tick_max = tick + len; + if (tick < tick_min) + tick_min = tick; + } + if (found) { + Pos p1(tick_min, true); + Pos p2(tick_max, true); + song->setPos(1, p1); + song->setPos(2, p2); + } + } + // Select items by key (PianoRoll & DrumEditor) + else if (key == shortcuts[SHRT_SEL_RIGHT].key || key == shortcuts[SHRT_SEL_RIGHT_ADD].key) { + iCItem i, iRightmost; + CItem* rightmost = NULL; + //Get the rightmost selected note (if any) + for (i = items.begin(); i != items.end(); ++i) { + if (i->second->isSelected()) { + iRightmost = i; rightmost = i->second; + } + } + if (rightmost) { + iCItem temp = iRightmost; temp++; + //If so, deselect current note and select the one to the right + if (temp != items.end()) { + if (key != shortcuts[SHRT_SEL_RIGHT_ADD].key) + deselectAll(); + + iRightmost++; + iRightmost->second->setSelected(true); + updateSelection(); + } + } + } + //Select items by key: (PianoRoll & DrumEditor) + else if (key == shortcuts[SHRT_SEL_LEFT].key || key == shortcuts[SHRT_SEL_LEFT_ADD].key) { + iCItem i, iLeftmost; + CItem* leftmost = NULL; + if (items.size() > 0 ) { + for (i = items.end(), i--; i != items.begin(); i--) { + if (i->second->isSelected()) { + iLeftmost = i; leftmost = i->second; + } + } + if (leftmost) { + if (iLeftmost != items.begin()) { + //Add item + if (key != shortcuts[SHRT_SEL_LEFT_ADD].key) + deselectAll(); + + iLeftmost--; + iLeftmost->second->setSelected(true); + updateSelection(); + } + } + } + } + else if (key == shortcuts[SHRT_INC_PITCH].key) { + modifySelected(NoteInfo::VAL_PITCH, 1); + } + else if (key == shortcuts[SHRT_DEC_PITCH].key) { + modifySelected(NoteInfo::VAL_PITCH, -1); + } + else if (key == shortcuts[SHRT_INC_POS].key) { + // TODO: Check boundaries + modifySelected(NoteInfo::VAL_TIME, editor->raster()); + } + else if (key == shortcuts[SHRT_DEC_POS].key) { + // TODO: Check boundaries + modifySelected(NoteInfo::VAL_TIME, 0 - editor->raster()); + } + + else if (key == shortcuts[SHRT_INCREASE_LEN].key) { + // TODO: Check boundaries + modifySelected(NoteInfo::VAL_LEN, editor->raster()); + } + else if (key == shortcuts[SHRT_DECREASE_LEN].key) { + // TODO: Check boundaries + modifySelected(NoteInfo::VAL_LEN, 0 - editor->raster()); + } + + else + event->ignore(); + } + +//--------------------------------------------------------- +// getTextDrag +//--------------------------------------------------------- + +//QDrag* EventCanvas::getTextDrag(QWidget* parent) +QMimeData* EventCanvas::getTextDrag() + { + //--------------------------------------------------- + // generate event list from selected events + //--------------------------------------------------- + + EventList el; + unsigned startTick = MAXINT; + for (iCItem i = items.begin(); i != items.end(); ++i) { + if (!i->second->isSelected()) + continue; + ///NEvent* ne = (NEvent*)(i->second); + CItem* ne = i->second; + Event e = ne->event(); + if (startTick == MAXINT) + startTick = e.tick(); + el.add(e); + } + + //--------------------------------------------------- + // write events as XML into tmp file + //--------------------------------------------------- + + FILE* tmp = tmpfile(); + if (tmp == 0) { + fprintf(stderr, "EventCanvas::getTextDrag() fopen failed: %s\n", + strerror(errno)); + return 0; + } + Xml xml(tmp); + + int level = 0; + xml.tag(level++, "eventlist"); + for (ciEvent e = el.begin(); e != el.end(); ++e) + e->second.write(level, xml, -startTick); + xml.etag(--level, "eventlist"); + + //--------------------------------------------------- + // read tmp file into drag Object + //--------------------------------------------------- + + fflush(tmp); + struct stat f_stat; + if (fstat(fileno(tmp), &f_stat) == -1) { + fprintf(stderr, "PianoCanvas::copy() fstat failes:<%s>\n", + strerror(errno)); + fclose(tmp); + return 0; + } + int n = f_stat.st_size; + char* fbuf = (char*)mmap(0, n+1, PROT_READ|PROT_WRITE, + MAP_PRIVATE, fileno(tmp), 0); + fbuf[n] = 0; + + QByteArray data(fbuf); + QMimeData* md = new QMimeData(); + //QDrag* drag = new QDrag(parent); + + md->setData("text/x-muse-eventlist", data); + //drag->setMimeData(md); + + munmap(fbuf, n); + fclose(tmp); + + //return drag; + return md; + } + +//--------------------------------------------------------- +// pasteAt +//--------------------------------------------------------- + +void EventCanvas::pasteAt(const QString& pt, int pos) + { + QByteArray ba = pt.toLatin1(); + const char* p = ba.constData(); + Xml xml(p); + for (;;) { + Xml::Token token = xml.parse(); + const QString& tag = xml.s1(); + switch (token) { + case Xml::Error: + case Xml::End: + return; + case Xml::TagStart: + if (tag == "eventlist") { + song->startUndo(); + EventList* el = new EventList(); + el->read(xml, "eventlist", true); + int modified = SC_EVENT_INSERTED; + for (iEvent i = el->begin(); i != el->end(); ++i) { + Event e = i->second; + int tick = e.tick() + pos - curPart->tick(); + if (tick<0) { + printf("ERROR: trying to add event before current part!\n"); + song->endUndo(SC_EVENT_INSERTED); + delete el; + return; + } + + e.setTick(tick); + int diff = e.endTick()-curPart->lenTick(); + if (diff > 0) {// too short part? extend it + Part* newPart = curPart->clone(); + newPart->setLenTick(newPart->lenTick()+diff); + // Indicate no undo, and do port controller values but not clone parts. + audio->msgChangePart(curPart, newPart, false, true, false); + modified=modified|SC_PART_MODIFIED; + curPart = newPart; // reassign + } + // Indicate no undo, and do not do port controller values and clone parts. + audio->msgAddEvent(e, curPart, false, false, false); + } + song->endUndo(modified); + delete el; + return; + } + else + xml.unknown("pasteAt"); + break; + case Xml::Attribut: + case Xml::TagEnd: + default: + break; + } + } + } + +//--------------------------------------------------------- +// dropEvent +//--------------------------------------------------------- + +void EventCanvas::viewDropEvent(QDropEvent* event) + { + QString text; + if (event->source() == this) { + printf("local DROP\n"); // REMOVE Tim + //event->acceptProposedAction(); + //event->ignore(); // TODO CHECK Tim. + return; + } + if (event->mimeData()->hasFormat("text/x-muse-eventlist")) { + text = QString(event->mimeData()->data("text/x-muse-eventlist")); + + int x = editor->rasterVal(event->pos().x()); + if (x < 0) + x = 0; + pasteAt(text, x); + //event->accept(); // TODO + } + else { + printf("cannot decode drop\n"); + //event->acceptProposedAction(); + //event->ignore(); // TODO CHECK Tim. + } + } + |