haiku/headers/os/interface/ChannelSlider.h

135 lines
4.2 KiB
C
Raw Normal View History

/*******************************************************************************
/
/ 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
/
*******************************************************************************/
#ifndef _CHANNEL_SLIDER_H
#define _CHANNEL_SLIDER_H
#include <ChannelControl.h>
class BChannelSlider : public BChannelControl
{
public:
BChannelSlider(BRect area, const char* name,
const char* label, BMessage* message,
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* message,
orientation o, int32 channels = 1,
uint32 resize = B_FOLLOW_LEFT | B_FOLLOW_TOP,
uint32 flags = B_WILL_DRAW);
BChannelSlider(BMessage* archive);
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* p);
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 groove that appears behind a channel's thumb.
virtual void DrawGroove(BView* into, int32 channel, BPoint lt,
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:
BChannelSlider(const BChannelSlider &);
BChannelSlider& operator=(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(bool update = false);
void _UpdateFontDimens();
void _DrawThumbs();
void _DrawGrooveFrame(BView* where, const BRect& area);
bool _Vertical() const;
void _Redraw();
void _MouseMovedCommon(BPoint point, BPoint point2);
};
#endif /* _CHANNEL_SLIDER_H */