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