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-rw-r--r--muse2/muse/master/master.cpp341
1 files changed, 341 insertions, 0 deletions
diff --git a/muse2/muse/master/master.cpp b/muse2/muse/master/master.cpp
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+//=========================================================
+// MusE
+// Linux Music Editor
+// $Id: master.cpp,v 1.3 2004/04/11 13:03:32 wschweer Exp $
+// (C) Copyright 2000 Werner Schweer (ws@seh.de)
+//=========================================================
+
+#include <stdio.h>
+#include <values.h>
+
+#include <qlineedit.h>
+#include <q3popupmenu.h>
+#include <qpainter.h>
+#include <q3header.h>
+#include <qcursor.h>
+//Added by qt3to4:
+#include <QMouseEvent>
+#include <QEvent>
+
+#include "globals.h"
+#include "master.h"
+#include "song.h"
+#include "scrollscale.h"
+#include "midi.h"
+#include "midieditor.h"
+#include "icons.h"
+#include "audio.h"
+
+extern void drawTickRaster(QPainter& p, int x, int y,
+ int w, int h, int quant);
+
+//---------------------------------------------------------
+// Master
+//---------------------------------------------------------
+
+Master::Master(MidiEditor* e, QWidget* parent, int xmag, int ymag)
+ : View(parent, xmag, ymag)
+ {
+ editor = e;
+ setBg(Qt::white);
+ vscroll = 0;
+ pos[0] = 0;
+ pos[1] = 0;
+ pos[2] = 0;
+ setMouseTracking(true);
+ connect(song, SIGNAL(posChanged(int, unsigned, bool)), this, SLOT(setPos(int, unsigned, bool)));
+ connect(song, SIGNAL(songChanged(int)), this, SLOT(redraw()));
+ }
+
+//---------------------------------------------------------
+// setPos
+//---------------------------------------------------------
+
+void Master::setPos(int idx, unsigned val, bool adjustScrollbar)
+ {
+ if (pos[idx] == val)
+ return;
+
+ int opos = mapx(pos[idx]);
+ int npos = mapx(val);
+
+ if (adjustScrollbar && idx == 0) {
+ switch (song->follow()) {
+ case Song::NO:
+ break;
+ case Song::JUMP:
+ if (npos >= width()) {
+ int ppos = val - rmapxDev(width()/8);
+ if (ppos < 0)
+ ppos = 0;
+ emit followEvent(ppos);
+ opos = mapx(pos[idx]);
+ npos = mapx(val);
+ }
+ else if (npos < 0) {
+ int ppos = val - rmapxDev(width()*3/4);
+ if (ppos < 0)
+ ppos = 0;
+ emit followEvent(ppos);
+ opos = mapx(pos[idx]);
+ npos = mapx(val);
+ }
+ break;
+ case Song::CONTINUOUS:
+ if (npos > (width()/2)) {
+ int ppos = pos[idx] - rmapxDev(width()/2);
+ if (ppos < 0)
+ ppos = 0;
+ emit followEvent(ppos);
+ opos = mapx(pos[idx]);
+ npos = mapx(val);
+ }
+ else if (npos < (width()/2)) {
+ int ppos = pos[idx] - rmapxDev(width()/2);
+ if (ppos < 0)
+ ppos = 0;
+ emit followEvent(ppos);
+ opos = mapx(pos[idx]);
+ npos = mapx(val);
+ }
+ break;
+ }
+ }
+
+ int x;
+ int w = 1;
+ if (opos > npos) {
+ w += opos - npos;
+ x = npos;
+ }
+ else {
+ w += npos - opos;
+ x = opos;
+ }
+ pos[idx] = val;
+ redraw(QRect(x-1, 0, w+2, height()));
+ }
+
+//---------------------------------------------------------
+// leaveEvent
+//---------------------------------------------------------
+
+void Master::leaveEvent(QEvent*)
+ {
+ emit tempoChanged(-1);
+ emit timeChanged(MAXINT);
+ }
+
+//---------------------------------------------------------
+// pdraw
+//---------------------------------------------------------
+
+void Master::pdraw(QPainter& p, const QRect& rect)
+ {
+ View::pdraw(p, rect); // calls draw()
+ p.resetXForm();
+
+ int x = rect.x();
+ int y = rect.y();
+ int w = rect.width() + 2;
+ int h = rect.height();
+
+ int wh = height();
+ //---------------------------------------------------
+ // draw Canvas Items
+ //---------------------------------------------------
+
+ const TempoList* tl = &tempomap;
+ for (ciTEvent i = tl->begin(); i != tl->end(); ++i) {
+ TEvent* e = i->second;
+ int etick = mapx(i->first);
+ int stick = mapx(i->second->tick);
+ int tempo = mapy(280000 - int(60000000000.0/(e->tempo)));
+
+ if (tempo < 0)
+ tempo = 0;
+ if (tempo < wh) {
+ p.fillRect(stick, tempo, etick-stick, wh, Qt::blue);
+ }
+ }
+
+ //---------------------------------------------------
+ // draw marker
+ //---------------------------------------------------
+
+ int xp = mapx(pos[0]);
+ if (xp >= x && xp < x+w) {
+ p.setPen(Qt::red);
+ p.drawLine(xp, y, xp, y+h);
+ }
+ xp = mapx(pos[1]);
+ if (xp >= x && xp < x+w) {
+ p.setPen(Qt::blue);
+ p.drawLine(xp, y, xp, y+h);
+ }
+ xp = mapx(pos[2]);
+ if (xp >= x && xp < x+w) {
+ p.setPen(Qt::blue);
+ p.drawLine(xp, y, xp, y+h);
+ }
+ }
+
+//---------------------------------------------------------
+// draw
+//---------------------------------------------------------
+
+void Master::draw(QPainter& p, const QRect& rect)
+ {
+ drawTickRaster(p, rect.x(), rect.y(),
+ rect.width(), rect.height(), 0);
+ }
+
+//---------------------------------------------------------
+// viewMousePressEvent
+//---------------------------------------------------------
+
+void Master::viewMousePressEvent(QMouseEvent* event)
+ {
+ start = event->pos();
+ Tool activeTool = tool;
+// bool shift = event->state() & ShiftButton;
+
+ switch (activeTool) {
+ case PointerTool:
+ drag = DRAG_LASSO_START;
+ break;
+
+ case PencilTool:
+ drag = DRAG_NEW;
+ song->startUndo();
+ newVal(start.x(), start.x(), start.y());
+ break;
+
+ case RubberTool:
+ drag = DRAG_DELETE;
+ song->startUndo();
+ deleteVal(start.x(), start.x());
+ break;
+
+ default:
+ break;
+ }
+ }
+
+//---------------------------------------------------------
+// viewMouseMoveEvent
+//---------------------------------------------------------
+
+void Master::viewMouseMoveEvent(QMouseEvent* event)
+ {
+ QPoint pos = event->pos();
+// QPoint dist = pos - start;
+// bool moving = dist.y() >= 3 || dist.y() <= 3 || dist.x() >= 3 || dist.x() <= 3;
+
+ switch (drag) {
+ case DRAG_NEW:
+ newVal(start.x(), pos.x(), pos.y());
+ start = pos;
+ break;
+
+ case DRAG_DELETE:
+ deleteVal(start.x(), pos.x());
+ start = pos;
+ break;
+
+ default:
+ break;
+ }
+ emit tempoChanged(280000 - event->y());
+ int x = pos.x();
+ if (x < 0)
+ x = 0;
+ emit timeChanged(editor->rasterVal(x));
+ }
+
+//---------------------------------------------------------
+// viewMouseReleaseEvent
+//---------------------------------------------------------
+
+void Master::viewMouseReleaseEvent(QMouseEvent*)
+ {
+ switch (drag) {
+ case DRAG_RESIZE:
+ case DRAG_NEW:
+ case DRAG_DELETE:
+ song->endUndo(SC_TEMPO);
+ break;
+ default:
+ break;
+ }
+ drag = DRAG_OFF;
+ }
+
+//---------------------------------------------------------
+// deleteVal
+//---------------------------------------------------------
+
+bool Master::deleteVal1(unsigned int x1, unsigned int x2)
+ {
+ bool songChanged = false;
+
+ TempoList* tl = &tempomap;
+ for (iTEvent i = tl->begin(); i != tl->end(); ++i) {
+ if (i->first < x1)
+ continue;
+ if (i->first >= x2)
+ break;
+ iTEvent ii = i;
+ ++ii;
+ if (ii != tl->end()) {
+ int tempo = ii->second->tempo;
+ audio->msgDeleteTempo(i->first, tempo, false);
+ songChanged = true;
+ }
+ }
+ return songChanged;
+ }
+
+void Master::deleteVal(int x1, int x2)
+ {
+ if (deleteVal1(editor->rasterVal1(x1), x2))
+ redraw();
+ }
+
+//---------------------------------------------------------
+// setTool
+//---------------------------------------------------------
+
+void Master::setTool(int t)
+ {
+ if (tool == Tool(t))
+ return;
+ tool = Tool(t);
+ switch(tool) {
+ case PencilTool:
+ setCursor(QCursor(*pencilIcon, 4, 15));
+ break;
+ default:
+ setCursor(QCursor(Qt::arrowCursor));
+ break;
+ }
+ }
+
+//---------------------------------------------------------
+// newVal
+//---------------------------------------------------------
+
+void Master::newVal(int x1, int x2, int y)
+ {
+ int xx1 = editor->rasterVal1(x1);
+ int xx2 = editor->rasterVal2(x2);
+
+ if (xx1 > xx2) {
+ int tmp = xx2;
+ xx2 = xx1;
+ xx1 = tmp;
+ }
+ deleteVal1(xx1, xx2);
+ audio->msgAddTempo(xx1, int(60000000000.0/(280000 - y)), false);
+ redraw();
+ }
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