BiblioteQ
biblioteq_animated_push_button.h
1 /*
2 ** Copyright (c) 2006 - present, Alexis Megas.
3 ** All rights reserved.
4 **
5 ** Redistribution and use in source and binary forms, with or without
6 ** modification, are permitted provided that the following conditions
7 ** are met:
8 ** 1. Redistributions of source code must retain the above copyright
9 ** notice, this list of conditions and the following disclaimer.
10 ** 2. Redistributions in binary form must reproduce the above copyright
11 ** notice, this list of conditions and the following disclaimer in the
12 ** documentation and/or other materials provided with the distribution.
13 ** 3. The name of the author may not be used to endorse or promote products
14 ** derived from BiblioteQ without specific prior written permission.
15 **
16 ** BIBLIOTEQ IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 ** BIBLIOTEQ, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27 
28 #ifndef _BIBLIOTEQ_ANIMATED_PUSH_BUTTON_H_
29 #define _BIBLIOTEQ_ANIMATED_PUSH_BUTTON_H_
30 
31 #include <QPropertyAnimation>
32 #include <QPushButton>
33 
34 class biblioteq_animated_push_button: public QPushButton
35 {
36  Q_OBJECT
37  Q_PROPERTY(QColor color READ color WRITE setColor)
38 
39  public:
40  biblioteq_animated_push_button(QWidget *parent):QPushButton(parent)
41  {
42  connect(&m_animator,
43  SIGNAL(finished(void)),
44  this,
45  SLOT(slotAnimationFinished(void)));
46  m_animator.setPropertyName("color");
47  m_animator.setTargetObject(this);
48  m_negativeColor = QColor(255, 36, 0); // A sprite of green.
49  m_originalColor = palette().color(QPalette::Window);
50  m_positiveColor = QColor(0, 177, 64); // A sprite of red.
51  }
52 
54  {
55  }
56 
57  QColor color(void) const
58  {
59  return QColor(Qt::blue); // A guess.
60  }
61 
62  void animate(const int milliseconds)
63  {
64  animatePositively(milliseconds);
65  }
66 
67  void animateNegatively(const int milliseconds)
68  {
69  animation(m_negativeColor, milliseconds);
70  }
71 
72  void animatePositively(const int milliseconds)
73  {
74  animation(m_positiveColor, milliseconds);
75  }
76 
77  private:
78  QColor m_negativeColor;
79  QColor m_originalColor;
80  QColor m_positiveColor;
81  QPropertyAnimation m_animator;
82 
83  void animation(const QColor &color, const int milliseconds)
84  {
85  if(milliseconds <= 0)
86  {
87  m_animator.stop();
88  return;
89  }
90 
91  m_animator.stop();
92  m_animator.setDuration(milliseconds);
93  m_animator.setEasingCurve(QEasingCurve::OutCubic);
94  m_animator.setEndValue(m_originalColor);
95  m_animator.setLoopCount(1);
96  m_animator.setStartValue(color);
97  m_animator.start();
98  }
99 
100  void setColor(const QColor &color)
101  {
102  setStyleSheet
103  (QString("background-color: rgb(%1, %2, %3);").
104  arg(color.red()).arg(color.green()).arg(color.blue()));
105  }
106 
107  private slots:
108  void slotAnimationFinished(void)
109  {
110  setStyleSheet("");
111  }
112 };
113 
114 #endif
Definition: biblioteq_animated_push_button.h:35