include/automation_editor.h

   1 /*
   2  * automation_editor.h - declaration of class automationEditor which is a window
   3  *                       where you can edit dynamic values in an easy way
   4  *
   5  * Copyright (c) 2006-2008 Javier Serrano Polo <jasp00/at/users.sourceforge.net>
   6  *
   7  * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2 of the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public
  20  * License along with this program (see COPYING); if not, write to the
  21  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  22  * Boston, MA 02110-1301 USA.
  23  *
  24  */
  25
  26 #ifndef _AUTOMATION_EDITOR_H
  27 #define _AUTOMATION_EDITOR_H
  28
  29 #include <QtCore/QMutex>
  30 #include <QtGui/QWidget>
  31
  32 #include "lmms_basics.h"
  33 #include "JournallingObject.h"
  34 #include "midi_time.h"
  35 #include "automation_pattern.h"
  36 #include "ComboBoxModel.h"
  37
  38
  39 class QPainter;
  40 class QPixmap;
  41 class QScrollBar;
  42
  43 class comboBox;
  44 class notePlayHandle;
  45 class timeLine;
  46 class toolButton;
  47
  48
  49 class automationEditor : public QWidget, public JournallingObject
  50 {
  51         Q_OBJECT
  52 public:
  53         void setCurrentPattern( automationPattern * _new_pattern );
  54
  55         inline const automationPattern * currentPattern() const
  56         {
  57                 return( m_pattern );
  58         }
  59
  60         inline bool validPattern() const
  61         {
  62                 return( m_pattern != NULL );
  63         }
  64
  65         int quantization() const;
  66
  67
  68         virtual void saveSettings( QDomDocument & _doc, QDomElement & _parent );
  69         virtual void loadSettings( const QDomElement & _this );
  70         inline virtual QString nodeName() const
  71         {
  72                 return( "automationeditor" );
  73         }
  74
  75
  76 public slots:
  77         void update();
  78         void updateAfterPatternChange();
  79
  80
  81 protected:
  82         typedef automationPattern::timeMap timeMap;
  83
  84         virtual void closeEvent( QCloseEvent * _ce );
  85         virtual void keyPressEvent( QKeyEvent * _ke );
  86         virtual void leaveEvent( QEvent * _e );
  87         virtual void mousePressEvent( QMouseEvent * _me );
  88         virtual void mouseReleaseEvent( QMouseEvent * _me );
  89         virtual void mouseMoveEvent( QMouseEvent * _me );
  90         virtual void paintEvent( QPaintEvent * _pe );
  91         virtual void resizeEvent( QResizeEvent * _re );
  92         virtual void wheelEvent( QWheelEvent * _we );
  93
  94         float getLevel( int _y );
  95         static inline void drawValueRect( QPainter & _p, int _x, int _y,
  96                                                 int _width, int _height,
  97                                                 const bool _is_selected );
  98         void removeSelection();
  99         void selectAll();
 100         void getSelectedValues( timeMap & _selected_values );
 101
 102         void drawLine( int x0, float y0, int x1, float y1 );
 103
 104 protected slots:
 105         void play();
 106         void stop();
 107
 108         void horScrolled( int _new_pos );
 109         void verScrolled( int _new_pos );
 110
 111         void drawButtonToggled();
 112         void eraseButtonToggled();
 113         void selectButtonToggled();
 114         void moveButtonToggled();
 115
 116         void copySelectedValues();
 117         void cutSelectedValues();
 118         void pasteValues();
 119         void deleteSelectedValues();
 120
 121         void updatePosition( const midiTime & _t );
 122
 123         void zoomingXChanged();
 124         void zoomingYChanged();
 125
 126
 127 private:
 128
 129         enum editModes
 130         {
 131                 DRAW,
 132                 ERASE,
 133                 SELECT,
 134                 MOVE
 135         } ;
 136
 137         enum actions
 138         {
 139                 NONE,
 140                 MOVE_VALUE,
 141                 SELECT_VALUES,
 142                 MOVE_SELECTION
 143         } ;
 144
 145         // some constants...
 146         static const int INITIAL_WIDTH = 740;
 147         static const int INITIAL_HEIGHT = 480;
 148
 149         static const int SCROLLBAR_SIZE = 16;
 150         static const int TOP_MARGIN = 48;
 151
 152         static const int DEFAULT_Y_DELTA = 6;
 153         static const int DEFAULT_STEPS_PER_TACT = 16;
 154         static const int DEFAULT_PPT = 12 * DEFAULT_STEPS_PER_TACT;
 155
 156         static const int VALUES_WIDTH = 64;
 157
 158         automationEditor();
 159         automationEditor( const automationEditor & );
 160         virtual ~automationEditor();
 161
 162
 163         static QPixmap * s_toolDraw;
 164         static QPixmap * s_toolErase;
 165         static QPixmap * s_toolSelect;
 166         static QPixmap * s_toolMove;
 167
 168
 169         QWidget * m_toolBar;
 170
 171         toolButton * m_playButton;
 172         toolButton * m_stopButton;
 173
 174         toolButton * m_drawButton;
 175         toolButton * m_eraseButton;
 176         toolButton * m_selectButton;
 177         toolButton * m_moveButton;
 178
 179         toolButton * m_cutButton;
 180         toolButton * m_copyButton;
 181         toolButton * m_pasteButton;
 182
 183         comboBox * m_zoomingXComboBox;
 184         comboBox * m_zoomingYComboBox;
 185         comboBox * m_quantizeComboBox;
 186
 187         ComboBoxModel m_zoomingXModel;
 188         ComboBoxModel m_zoomingYModel;
 189         ComboBoxModel m_quantizeModel;
 190
 191         QMutex m_patternMutex;
 192         automationPattern * m_pattern;
 193         float m_minLevel;
 194         float m_maxLevel;
 195         float m_step;
 196         float m_scrollLevel;
 197         float m_bottomLevel;
 198         float m_topLevel;
 199
 200         void updateTopBottomLevels();
 201
 202         QScrollBar * m_leftRightScroll;
 203         QScrollBar * m_topBottomScroll;
 204
 205         midiTime m_currentPosition;
 206
 207         actions m_action;
 208
 209         tick_t m_selectStartTick;
 210         tick_t m_selectedTick;
 211         float m_selectStartLevel;
 212         float m_selectedLevels;
 213
 214         float m_moveStartLevel;
 215         tick_t m_moveStartTick;
 216         int m_moveXOffset;
 217
 218         float m_drawLastLevel;
 219         tick_t m_drawLastTick;
 220
 221         int m_ppt;
 222         int m_y_delta;
 223         bool m_y_auto;
 224
 225         timeMap m_valuesToCopy;
 226         timeMap m_selValuesForMove;
 227
 228
 229         editModes m_editMode;
 230
 231
 232         timeLine * m_timeLine;
 233         bool m_scrollBack;
 234
 235         void drawCross( QPainter & _p );
 236         bool inBBEditor();
 237
 238
 239
 240         friend class engine;
 241
 242
 243 signals:
 244         void currentPatternChanged();
 245         void positionChanged( const midiTime & );
 246
 247 } ;
 248
 249
 250 #endif
 251