drumstick  2.1.1
pianokey.cpp
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1 /*
2  Virtual Piano Widget for Qt5
3  Copyright (C) 2008-2021, Pedro Lopez-Cabanillas <plcl@users.sf.net>
4 
5  This program is free software; you can redistribute it and/or modify
6  it under the terms of the GNU General Public License as published by
7  the Free Software Foundation; either version 3 of the License, or
8  (at your option) any later version.
9 
10  This program is distributed in the hope that it will be useful,
11  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  GNU General Public License for more details.
14 
15  You should have received a copy of the GNU General Public License along
16  with this program; If not, see <http://www.gnu.org/licenses/>.
17 */
18 
19 #include "pianokey.h"
20 #include <QApplication>
21 #include <QPainter>
22 #include <QPalette>
23 #include <drumstick/pianopalette.h>
24 
30 namespace drumstick { namespace widgets {
31 
32 const PianoPalette PianoKey::keyPalette(PAL_KEYS);
33 
34 PianoKey::PianoKey(const QRectF &rect, const bool black, const int note)
35  : QGraphicsRectItem(rect),
36  m_pressed(false),
37  m_note(note),
38  m_black(black),
39  m_usePixmap(true)
40 {
41  m_brush = keyPalette.getColor(black ? 1 : 0);
42  setAcceptedMouseButtons(Qt::NoButton);
43 }
44 
45 void PianoKey::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
46 {
47  static const QPen blackPen(Qt::black, 1);
48  painter->setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
49  if (m_pressed) {
50  if (m_selectedBrush.style() != Qt::NoBrush) {
51  painter->setBrush(m_selectedBrush);
52  } else {
53  painter->setBrush(QApplication::palette().highlight());
54  }
55  } else {
56  painter->setBrush(m_brush);
57  }
58  painter->setPen(blackPen);
59  painter->drawRoundedRect(rect(), 20, 15, Qt::RelativeSize);
60  if (m_usePixmap) {
61  painter->drawPixmap(rect(), getPixmap(), pixmapRect());
62  }
63 }
64 
65 void PianoKey::setPressed(bool p)
66 {
67  if (p != m_pressed) {
68  m_pressed = p;
69  update();
70  }
71 }
72 
73 const QPixmap& PianoKey::getPixmap() const
74 {
75  static QPixmap blpixmap(QStringLiteral(":/vpiano/blkey.png"));
76  static QPixmap whpixmap(QStringLiteral(":/vpiano/whkey.png"));
77  if (m_pixmap.isNull()) {
78  return m_black ? blpixmap : whpixmap;
79  } else {
80  return m_pixmap;
81  }
82 }
83 
84 QRectF PianoKey::pixmapRect() const
85 {
86  return getPixmap().rect();
87 }
88 
89 void PianoKey::resetBrush()
90 {
91  m_brush = keyPalette.getColor(m_black ? 1 : 0);
92 }
93 
94 void PianoKey::setPixmap(const QPixmap &p)
95 {
96  m_pixmap = p;
97 }
98 
99 bool PianoKey::getUsePixmap() const
100 {
101  return m_usePixmap;
102 }
103 
104 void PianoKey::setUsePixmap(bool usePixmap)
105 {
106  m_usePixmap = usePixmap;
107 }
108 
109 } // namespace widgets
110 } // namespace drumstick
@ PAL_KEYS
Two background colors (naturals/alterations)
Definition: pianopalette.h:50
Drumstick common.
Definition: alsaclient.cpp:68
Declaration of the PianoKey class.
Piano Palette declarations.