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
|
#ifndef ViewBase_h
#define ViewBase_h
// QT
#include "tqwidget.h"
// KDE
class TDEActionCollection;
class TDEPopupMenu;
class MixSet;
class Mixer;
class MixDevice;
/**
* The ViewBase is a virtual base class, to be used for subclassing the real Mixer Views.
*/
class ViewBase : public TQWidget
{
TQ_OBJECT
public:
typedef uint ViewFlags;
enum ViewFlagsEnum {
// Regular flags
HasMenuBar = 0x0001,
MenuBarVisible = 0x0002,
Horizontal = 0x0004,
Vertical = 0x0008,
// Experimental flags
Experimental_SurroundView = 0x1000,
Experimental_GridView = 0x2000
};
ViewBase(TQWidget* parent, const char* name, const TQString & caption, Mixer* mixer, WFlags=0, ViewFlags vflags=0);
virtual ~ViewBase();
// Subclasses must define this method. It is called by the ViewBase() constuctor.
// The view class must initialize here the _mixSet. This will normally be a subset
// of the passed mixset.
// After that the subclass must be prepared for
// being fed MixDevice's via the add() method.
virtual void setMixSet(MixSet *mixset);
// Returns the number of accepted MixDevice's from setMixerSet(). This is
// normally smaller that mixset->count(), except when the class creates virtual
// devices
virtual int count() = 0;
// returns an advice about whether this view should be used at all. The returned
// value is a percentage (0-100). A view without accepted devices would return 0,
// a "3D sound View" would return 75, if all vital but some optional devices are
// not available.
virtual int advice() = 0;
// This method is called by ViewBase at the end of createDeviceWidgets(). The default
// implementation does nothing. Subclasses can override this method for doing final
// touches. This is very much like polish(), but called at an exactly well-known time.
// Also I do not want Views to interfere with polish()
virtual void constructionFinished() = 0;
// This method is called after a configuration update (in other words: after the user
// has clicked "OK" on the "show/hide" configuration dialog. The default implementation
// does nothing.
virtual void configurationUpdate();
/**
* Creates the widgets for all supported devices. The default implementation loops
* over the supported MixDevice's and calls add() for each of it.
*/
virtual void createDeviceWidgets();
/**
* Creates a suitable representation for the given MixDevice.
* The default implementation creates a label
*/
virtual TQWidget* add(MixDevice *);
/**
* Popup stuff
*/
virtual TDEPopupMenu* getPopup();
virtual void popupReset();
virtual void showContextMenu();
Mixer* getMixer();
/**
* Contains the widgets for the _mixSet. There is a 1:1 relationship, which means:
* _mdws[i] is the Widget for the MixDevice _mixSet[i].
* Hint: The new ViewSurround class shows that a 1:1 relationship does not work in a general scenario.
* I actually DID expect this. The solution is unclear yet, probably there will be a virtual mapper method.
*/
TQPtrList<TQWidget> _mdws; // this obsoletes the former Channel class
TQString caption() const { return _caption; }
protected:
void init();
Mixer *_mixer;
MixSet *_mixSet;
TDEPopupMenu *_popMenu;
TDEActionCollection* _actions;
ViewFlags _vflags;
public slots:
virtual void refreshVolumeLevels();
virtual void configureView();
void toggleMenuBarSlot();
void selectMixerSlot();
protected slots:
void mousePressEvent( TQMouseEvent *e );
signals:
void toggleMenuBar();
void selectMixer();
private:
TQString _caption;
};
#endif
|
