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