1 | /* This file is part of the KDE project |
2 | Copyright (C) 2006-2008 Ricardo Villalba <rvm@escomposlinux.org> |
3 | |
4 | This library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) version 3, or any |
8 | later version accepted by the membership of KDE e.V. (or its |
9 | successor approved by the membership of KDE e.V.), Nokia Corporation |
10 | (or its successors, if any) and the KDE Free Qt Foundation, which shall |
11 | act as a proxy defined in Section 6 of version 3 of the license. |
12 | |
13 | This library is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | Lesser General Public License for more details. |
17 | |
18 | You should have received a copy of the GNU Lesser General Public |
19 | License along with this library. If not, see <http://www.gnu.org/licenses/>. |
20 | |
21 | */ |
22 | |
23 | #include "swiftslider_p.h" |
24 | |
25 | #include <QMouseEvent> |
26 | #include <QStyle> |
27 | #include <QStyleOption> |
28 | |
29 | #if !defined(QT_NO_PHONON_SEEKSLIDER) && !defined(QT_NO_PHONON_VOLUMESLIDER) |
30 | |
31 | namespace Phonon |
32 | { |
33 | |
34 | SwiftSlider::SwiftSlider(Qt::Orientation orientation, QWidget * parent) |
35 | : QSlider(orientation, parent) |
36 | , m_wheelTimer(this) |
37 | { |
38 | m_wheelTimer.setInterval(100); |
39 | m_wheelTimer.setSingleShot(true); |
40 | connect(sender: &m_wheelTimer, SIGNAL(timeout()), receiver: this, SIGNAL(scrollEnd())); |
41 | } |
42 | |
43 | SwiftSlider::~SwiftSlider() |
44 | { |
45 | } |
46 | |
47 | // Function copied from qslider.cpp |
48 | inline int SwiftSlider::pick(const QPoint &pt) const |
49 | { |
50 | return orientation() == Qt::Horizontal ? pt.x() : pt.y(); |
51 | } |
52 | |
53 | // Function copied from qslider.cpp and modified to make it compile |
54 | int SwiftSlider::pixelPosToRangeValue(int pos) const |
55 | { |
56 | QStyleOptionSlider opt; |
57 | initStyleOption(option: &opt); |
58 | QRect gr = style()->subControlRect(cc: QStyle::CC_Slider, opt: &opt, sc: QStyle::SC_SliderGroove, widget: this); |
59 | QRect sr = style()->subControlRect(cc: QStyle::CC_Slider, opt: &opt, sc: QStyle::SC_SliderHandle, widget: this); |
60 | int sliderMin, sliderMax, sliderLength; |
61 | |
62 | if (orientation() == Qt::Horizontal) { |
63 | sliderLength = sr.width(); |
64 | sliderMin = gr.x(); |
65 | sliderMax = gr.right() - sliderLength + 1; |
66 | } else { |
67 | sliderLength = sr.height(); |
68 | sliderMin = gr.y(); |
69 | sliderMax = gr.bottom() - sliderLength + 1; |
70 | } |
71 | return QStyle::sliderValueFromPosition(min: minimum(), max: maximum(), pos: pos - sliderMin, |
72 | space: sliderMax - sliderMin, upsideDown: opt.upsideDown); |
73 | } |
74 | |
75 | // Based on code from qslider.cpp |
76 | void SwiftSlider::mousePressEvent(QMouseEvent *event) |
77 | { |
78 | if (event->button() == Qt::LeftButton) { |
79 | QStyleOptionSlider opt; |
80 | initStyleOption(option: &opt); |
81 | const QRect sliderRect = style()->subControlRect(cc: QStyle::CC_Slider, opt: &opt, sc: QStyle::SC_SliderHandle, widget: this); |
82 | const QPoint center = sliderRect.center() - sliderRect.topLeft(); |
83 | // to take half of the slider off for the setSliderPosition call we use the center - topLeft |
84 | |
85 | if (!sliderRect.contains(p: event->pos())) { |
86 | event->accept(); |
87 | |
88 | setSliderPosition(pixelPosToRangeValue(pos: pick(pt: event->pos() - center))); |
89 | triggerAction(action: SliderMove); |
90 | setRepeatAction(action: SliderNoAction); |
91 | } else { |
92 | QSlider::mousePressEvent(ev: event); |
93 | } |
94 | } else { |
95 | QSlider::mousePressEvent(ev: event); |
96 | } |
97 | } |
98 | |
99 | void SwiftSlider::wheelEvent(QWheelEvent *event) |
100 | { |
101 | m_wheelTimer.start(); |
102 | QSlider::wheelEvent(e: event); |
103 | } |
104 | |
105 | } // namespace Phonon |
106 | |
107 | #endif //QT_NO_PHONON_VOLUMESLIDER && QT_NO_PHONON_VOLUMESLIDER |
108 | |
109 | #include "moc_swiftslider_p.cpp" |
110 | |