/******************************************************************************* / / File: ChannelSlider.h / / Description: BChannelSlider implements a slider which can have a number / of (on-screen) related values. A typical use is for a stereo / volume control. / / Copyright 1998-99, Be Incorporated, All Rights Reserved / *******************************************************************************/ #if !defined(_CHANNEL_SLIDER_H) #define _CHANNEL_SLIDER_H #include class BChannelSlider : public BChannelControl { public: BChannelSlider( BRect area, const char * name, const char * label, BMessage * model, int32 channels = 1, uint32 resize = B_FOLLOW_LEFT | B_FOLLOW_TOP, uint32 flags = B_WILL_DRAW); BChannelSlider( BRect area, const char * name, const char * label, BMessage * model, orientation o, int32 channels = 1, uint32 resize = B_FOLLOW_LEFT | B_FOLLOW_TOP, uint32 flags = B_WILL_DRAW); BChannelSlider( BMessage * from); virtual ~BChannelSlider(); static BArchivable * Instantiate(BMessage * from); virtual status_t Archive(BMessage * into, bool deep = true) const; virtual orientation Orientation() const; void SetOrientation(orientation o); virtual int32 MaxChannelCount() const; virtual bool SupportsIndividualLimits() const; virtual void AttachedToWindow(); virtual void AllAttached(); virtual void DetachedFromWindow(); virtual void AllDetached(); virtual void MessageReceived(BMessage *msg); virtual void Draw(BRect area); virtual void MouseDown(BPoint where); virtual void MouseUp(BPoint pt); virtual void MouseMoved( BPoint pt, uint32 code, const BMessage * message); virtual void WindowActivated(bool state); virtual void KeyDown(const char *bytes, int32 numBytes); virtual void KeyUp(const char *bytes, int32 numBytes); virtual void FrameResized(float width, float height); virtual void SetFont(const BFont *font, uint32 mask = B_FONT_ALL); virtual void MakeFocus(bool focusState = true); virtual void SetEnabled(bool on); virtual void GetPreferredSize(float *width, float *height); virtual BHandler *ResolveSpecifier(BMessage *msg, int32 index, BMessage *specifier, int32 form, const char *property); virtual status_t GetSupportedSuites(BMessage *data); // Perform rendering for an entire slider channel. virtual void DrawChannel(BView* into, int32 channel, BRect area, bool pressed); // Draw the groove that appears behind a channel's thumb. virtual void DrawGroove( BView* into, int32 channel, BPoint tl, BPoint br); // Draw the thumb for a single channel. virtual void DrawThumb( BView* into, int32 channel, BPoint where, bool pressed ); virtual const BBitmap * ThumbFor(int32 channel, bool pressed); virtual BRect ThumbFrameFor(int32 channel); virtual float ThumbDeltaFor(int32 channel); virtual float ThumbRangeFor(int32 channel); private: typedef BChannelControl inherited; BChannelSlider( /* unimplemented */ const BChannelSlider &); BChannelSlider& operator=( /* unimplemented */ const BChannelSlider &); virtual void _Reserved_BChannelSlider_0(void *, ...); virtual void _Reserved_BChannelSlider_1(void *, ...); virtual void _Reserved_BChannelSlider_2(void *, ...); virtual void _Reserved_BChannelSlider_3(void *, ...); virtual void _Reserved_BChannelSlider_4(void *, ...); virtual void _Reserved_BChannelSlider_5(void *, ...); virtual void _Reserved_BChannelSlider_6(void *, ...); virtual void _Reserved_BChannelSlider_7(void *, ...); float fBaseLine; float fLineFeed; BBitmap * fLeftKnob; BBitmap * fMidKnob; BBitmap * fRightKnob; BBitmap * fBacking; BView * fBackingView; bool fVertical; bool fPadding[3]; BPoint fClickDelta; int32 fCurrentChannel; bool fAllChannels; int32* fInitialValues; float fMinpoint; int32 fFocusChannel; uint32 _reserved_[12]; void InitData(); void FinishChange(); void UpdateFontDimens(); void DrawThumbs(); void DrawThumbFrame( BView * where, const BRect & area); bool Vertical(); void Redraw(); void MouseMovedCommon(BPoint , BPoint ); }; #endif /* _CHANNEL_SLIDER_H */