source/frontend/widgets/paramspinbox.hpp

   1 /*
   2  * Parameter SpinBox, a custom Qt4 widget
   3  * Copyright (C) 2011-2013 Filipe Coelho <falktx@falktx.com>
   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 2 of the License, or
   8  * 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  * For a full copy of the GNU General Public License see the doc/GPL.txt file.
  16  */
  17
  18 #ifndef PARAMSPINBOX_HPP_INCLUDED
  19 #define PARAMSPINBOX_HPP_INCLUDED
  20
  21 #include "CarlaJuceUtils.hpp"
  22
  23 #include <QtCore/Qt>
  24
  25 #if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
  26 # include <QtWidgets/QProgressBar>
  27 #else
  28 # include <QtGui/QProgressBar>
  29 #endif
  30
  31 class TextCallback
  32 {
  33 public:
  34     virtual ~TextCallback();
  35     virtual const char* textCallBack() = 0;
  36 };
  37
  38 class ParamProgressBar : public QProgressBar
  39 {
  40     Q_OBJECT
  41
  42 public:
  43     ParamProgressBar(QWidget* parent);
  44
  45     void set_minimum(float value);
  46     void set_maximum(float value);
  47     void set_value(float value);
  48     void set_label(QString label);
  49     void set_text_call(TextCallback* textCall);
  50
  51 signals:
  52     void valueChangedFromBar(float value);
  53
  54 protected:
  55     void handleMouseEventPos(const QPoint& pos);
  56     void mousePressEvent(QMouseEvent* event) override;
  57     void mouseMoveEvent(QMouseEvent* event) override;
  58     void mouseReleaseEvent(QMouseEvent* event) override;
  59     void paintEvent(QPaintEvent* event) override;
  60
  61 private:
  62     bool  m_leftClickDown;
  63     float m_minimum;
  64     float m_maximum;
  65     float m_rvalue;
  66     QString m_label;
  67     QString m_preLabel;
  68
  69     TextCallback* m_textCall;
  70
  71     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(ParamProgressBar)
  72 };
  73
  74 #endif // PARAMSPINBOX_HPP_INCLUDED