view layer/PianoScale.cpp @ 1447:8afea53332f3 single-point

Add option to make pane sizes auto-resize-only (i.e. remove user control via a splitter); also place alignment views above panes instead of below, meaning the extra bit of space that we currently have for the pane without one at least goes to the primary pane

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006-2013 Chris Cannam and QMUL.
    
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

#include "PianoScale.h"

#include <QPainter>

#include <cmath>

#include "base/Pitch.h"

#include "LayerGeometryProvider.h"
#include "HorizontalScaleProvider.h"

#include <iostream>
using namespace std;

void
PianoScale::paintPianoVertical(LayerGeometryProvider *v,
                               QPainter &paint,
                               QRect r,
                               double minf,
                               double maxf)
{
    int x0 = r.x(), y0 = r.y(), x1 = r.x() + r.width(), y1 = r.y() + r.height();

    paint.drawLine(x0, y0, x0, y1);

    int py = y1, ppy = y1;
    paint.setBrush(paint.pen().color());

    for (int i = 0; i < 128; ++i) {

        double f = Pitch::getFrequencyForPitch(i);
        int y = int(lrint(v->getYForFrequency(f, minf, maxf, true)));

        if (y < y0 - 2) break;
        if (y > y1 + 2) {
            continue;
        }
        
        int n = (i % 12);
        
        if (n == 1) {
            // C# -- fill the C from here
            QColor col = Qt::gray;
            if (i == 61) { // filling middle C
                col = Qt::blue;
                col = col.light(150);
            }
            if (ppy - y > 2) {
                paint.fillRect(x0 + 1,
                               y,
                               x1 - x0,
                               (py + ppy) / 2 - y,
                               col);
            }
        }
        
        if (n == 1 || n == 3 || n == 6 || n == 8 || n == 10) {
            // black notes
            paint.drawLine(x0 + 1, y, x1, y);
            int rh = ((py - y) / 4) * 2;
            if (rh < 2) rh = 2;
            paint.drawRect(x0 + 1, y - (py-y)/4, (x1 - x0) / 2, rh);
        } else if (n == 0 || n == 5) {
            // C, F
            if (py < y1) {
                paint.drawLine(x0 + 1, (y + py) / 2, x1, (y + py) / 2);
            }
        }
        
        ppy = py;
        py = y;
    }
}

void
PianoScale::paintPianoHorizontal(LayerGeometryProvider *v,
                                 const HorizontalScaleProvider *p,
                                 QPainter &paint,
                                 QRect r)
{
    int x0 = r.x(), y0 = r.y(), x1 = r.x() + r.width(), y1 = r.y() + r.height();

    paint.drawLine(x0, y0, x1, y0);

    int px = x0, ppx = x0;
    paint.setBrush(paint.pen().color());

    for (int i = 0; i < 128; ++i) {

        double f = Pitch::getFrequencyForPitch(i);
        int x = int(lrint(p->getXForFrequency(v, f)));

        if (i == 0) {
            px = ppx = x;
        }
        if (i == 1) {
            ppx = px - (x - px);
        }
        
        if (x < x0) {
            ppx = px;
            px = x;
            continue;
        }
        
        if (x > x1) {
            break;
        }

        int n = (i % 12);

        if (n == 1) {
            // C# -- fill the C from here
            QColor col = Qt::gray;
            if (i == 61) { // filling middle C
                col = Qt::blue;
                col = col.light(150);
            }
            if (x - ppx > 2) {
                paint.fillRect((px + ppx) / 2 + 1,
                               y0 + 1,
                               x - (px + ppx) / 2 - 1,
                               y1 - y0,
                               col);
            }
        }

        if (n == 1 || n == 3 || n == 6 || n == 8 || n == 10) {
            // black notes
            paint.drawLine(x, y0, x, y1);
            int rw = int(lrint(double(x - px) / 4) * 2);
            if (rw < 2) rw = 2;
            paint.drawRect(x - rw/2, (y0 + y1) / 2, rw, (y1 - y0) / 2);
        } else if (n == 0 || n == 5) {
            // C, F
            if (px < x1) {
                paint.drawLine((x + px) / 2, y0, (x + px) / 2, y1);
            }
        }
        
        ppx = px;
        px = x;
    }
}