1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
Virtual Piano Widget for Qt
Copyright (C) 2008-2024, Pedro Lopez-Cabanillas <plcl@users.sf.net>
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 3 of the License, or
(at your option) any later version.
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, see <http://www.gnu.org/licenses/>.
*/
#include <QApplication>
#include <QPainter>
#include <QPalette>
#include <drumstick/pianopalette.h>
#include "pianokey.h"
/**
* @file pianokey.cpp
* Implementation of the PianoKey class
*/
namespace drumstick { namespace widgets {
const PianoPalette PianoKey::keyPalette(PAL_KEYS);
PianoKey::PianoKey(const QRectF &rect, const bool black, const int note)
: QGraphicsRectItem(rect),
m_pressed(false),
m_note(note),
m_black(black),
m_usePixmap(true)
{
m_brush = keyPalette.getColor(black ? 1 : 0);
setAcceptedMouseButtons(Qt::NoButton);
setFlag(QGraphicsItem::ItemClipsChildrenToShape);
}
void PianoKey::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
{
static const QPen blackPen(Qt::black, 1);
painter->setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
if (m_pressed) {
if (m_selectedBrush.style() != Qt::NoBrush) {
painter->setBrush(m_selectedBrush);
} else {
painter->setBrush(QApplication::palette().highlight());
}
} else {
painter->setBrush(m_brush);
}
painter->setPen(blackPen);
painter->drawRoundedRect(rect(), 20, 15, Qt::RelativeSize);
if (m_usePixmap) {
QPixmap p = getPixmap();
painter->drawPixmap(rect(), p, p.rect());
}
}
void PianoKey::setPressed(bool p)
{
if (p != m_pressed) {
m_pressed = p;
update();
}
}
const QPixmap& PianoKey::getPixmap() const
{
static QPixmap blpixmap(QStringLiteral(":/vpiano/blkey.png"));
static QPixmap whpixmap(QStringLiteral(":/vpiano/whkey.png"));
static QColor bgColor;
if (!m_black && (bgColor != m_brush.color())) {
bgColor = m_brush.color();
paintPixmap(whpixmap, QColor::fromRgba(bgColor.rgba()^0xffffff));
}
if (m_pixmap.isNull()) {
return m_black ? blpixmap : whpixmap;
} else {
return m_pixmap;
}
}
QRectF PianoKey::pixmapRect() const
{
return getPixmap().rect();
}
void PianoKey::resetBrush()
{
m_brush = keyPalette.getColor(m_black ? 1 : 0);
}
void PianoKey::setPixmap(const QPixmap &p)
{
m_pixmap = p;
}
bool PianoKey::getUsePixmap() const
{
return m_usePixmap;
}
void PianoKey::setUsePixmap(bool usePixmap)
{
m_usePixmap = usePixmap;
}
void PianoKey::paintPixmap(QPixmap &pixmap, const QColor& color) const
{
if (!pixmap.isNull()) {
QPainter painter(&pixmap);
painter.setRenderHints(QPainter::SmoothPixmapTransform | QPainter::Antialiasing);
painter.setCompositionMode(QPainter::CompositionMode_SourceIn);
painter.fillRect(pixmap.rect(), color);
}
}
} // namespace widgets
} // namespace drumstick
|
