diff options
Diffstat (limited to 'muse_qt4_evolution/muse/master/master.cpp')
| -rw-r--r-- | muse_qt4_evolution/muse/master/master.cpp | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/muse_qt4_evolution/muse/master/master.cpp b/muse_qt4_evolution/muse/master/master.cpp new file mode 100644 index 00000000..d033753c --- /dev/null +++ b/muse_qt4_evolution/muse/master/master.cpp @@ -0,0 +1,233 @@ +//============================================================================= +// MusE +// Linux Music Editor +// $Id:$ +// +// Copyright (C) 2002-2006 by Werner Schweer and others +// +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License version 2. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +//============================================================================= + +#include "master.h" +#include "icons.h" +#include "audio.h" +#include "al/tempo.h" +#include "song.h" + +static const int minTempo = 50; +static const int maxTempo = 250; + +//--------------------------------------------------------- +// pix2tempo +//--------------------------------------------------------- + +int MasterCanvas::pix2tempo(int val) const + { + return maxTempo*1000 - mapyDev(val); + } + +//--------------------------------------------------------- +// tempo2pix +//--------------------------------------------------------- + +int MasterCanvas::tempo2pix(int val) const + { + return mapy(maxTempo*1000 - lrint(60000000000.0/val)); + } + +//--------------------------------------------------------- +// MasterCanvas +//--------------------------------------------------------- + +MasterCanvas::MasterCanvas() + : TimeCanvas(TIME_CANVAS) + { + setMarkerList(song->marker()); + setMag(xmag(), 400.0 / (maxTempo * 1000.0)); + setYMagRange(40.0 / (maxTempo*1000), 4000.0 / (maxTempo*1000)); + setVSize((maxTempo - minTempo) * 1000); + setYFit(true); + verticalScrollBar()->setSingleStep(1000); + verticalScrollBar()->setMinimum(minTempo * 1000); + verticalScrollBar()->setMaximum(maxTempo * 1000); + drag = DRAG_OFF; + } + +//--------------------------------------------------------- +// paint +//--------------------------------------------------------- + +void MasterCanvas::paint(QPainter& p, QRect rect) + { + int y = rect.y(); + + //--------------------------------------------------- + // draw Canvas Items + //--------------------------------------------------- + + int y2 = lrint(maxTempo * 1000 * _ymag); + const AL::TempoList* tl = &AL::tempomap; + for (AL::ciTEvent i = tl->begin(); i != tl->end(); ++i) { + AL::TEvent* e = i->second; + int x1 = pos2pix(AL::Pos(i->first)); + int x2 = pos2pix(AL::Pos(i->second->tick)); + int y1 = lrint(_ymag * (maxTempo*1000 - lrint(60000000000.0/e->tempo))); + if (y1 < y) + y1 = y; + p.fillRect(x1, y1, x2 - x1, y2 - y1, Qt::blue); + } + } + +//--------------------------------------------------------- +// viewMousePressEvent +//--------------------------------------------------------- + +void MasterCanvas::mousePress(QMouseEvent* event) + { + start = event->pos(); + int x = start.x() - rCanvasA.x(); + int y = start.y() - rCanvasA.y(); + + switch (tool()) { + case PointerTool: + drag = DRAG_LASSO_START; + break; + + case PencilTool: + drag = DRAG_NEW; + song->startUndo(); + newVal(x, x, y); + break; + + case RubberTool: + drag = DRAG_DELETE; + song->startUndo(); + deleteVal(x, x); + break; + + default: + break; + } + } + +//--------------------------------------------------------- +// viewMouseMoveEvent +//--------------------------------------------------------- + +void MasterCanvas::mouseMove(QPoint pos) + { + int y = pos.y() - rCanvasA.y(); + int x = pos.x() - rCanvasA.x(); + + QPoint dist = pos - start; + // bool moving = dist.y() >= 3 || dist.y() <= 3 || dist.x() >= 3 || dist.x() <= 3; + + int sx = start.x() - rCanvasA.x(); + switch (drag) { + case DRAG_NEW: + newVal(sx, x, y); + start = pos; + break; + + case DRAG_DELETE: + deleteVal(sx, x); + start = pos; + break; + + default: + break; + } + emit tempoChanged(pix2tempo(y)); +// emit timeChanged(editor->rasterVal(x)); + } + +//--------------------------------------------------------- +// mouseRelease +//--------------------------------------------------------- + +void MasterCanvas::mouseRelease(QMouseEvent*) + { + switch (drag) { + case DRAG_RESIZE: + case DRAG_NEW: + case DRAG_DELETE: + song->endUndo(SC_TEMPO); + break; + default: + break; + } + drag = DRAG_OFF; + } + +//--------------------------------------------------------- +// deleteVal +//--------------------------------------------------------- + +bool MasterCanvas::deleteVal1(const AL::Pos& p1, const AL::Pos& p2) + { + bool songChanged = false; + + AL::TempoList* tl = &AL::tempomap; + for (AL::iTEvent i = tl->begin(); i != tl->end(); ++i) { + if (i->first < p1.tick()) + continue; + if (i->first >= p2.tick()) + break; + AL::iTEvent ii = i; + ++ii; + if (ii != tl->end()) { + int tempo = ii->second->tempo; + audio->msgDeleteTempo(i->first, tempo, false); + songChanged = true; + } + } + return songChanged; + } + +//--------------------------------------------------------- +// deleteVal +//--------------------------------------------------------- + +void MasterCanvas::deleteVal(int x1, int x2) + { + AL::Pos p1(pix2pos(x1)); + AL::Pos p2(pix2pos(x2)); + p1.downSnap(raster()); + p2.upSnap(raster()); + if (deleteVal1(p1, p2)) + widget()->update(); + } + +//--------------------------------------------------------- +// newVal +//--------------------------------------------------------- + +void MasterCanvas::newVal(int x1, int x2, int y) + { + int tempo = lrint(60000000000.0 / pix2tempo(y)); + AL::Pos p1 = pix2pos(x1); + p1.downSnap(raster()); + AL::Pos p2 = pix2pos(x2); + p2.upSnap(raster()); + + if (p1 > p2) { + AL::Pos tmp = p2; + p2 = p1; + p1 = tmp; + } + deleteVal1(p1, p2); + audio->msgAddTempo(p1.tick(), tempo, false); + widget()->update(); + } + + |