9fe3529f3e
It was always enabled, and disabling it would break ABI. If we want to make it disable-able, it needs to be a setting, but I don't really see a reason for that.
135 lines
3.7 KiB
C++
135 lines
3.7 KiB
C++
/*
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* Copyright 2001-2020 Haiku, Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _SCROLL_BAR_H
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#define _SCROLL_BAR_H
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#include <View.h>
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#define B_V_SCROLL_BAR_WIDTH 14.0f
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#define B_H_SCROLL_BAR_HEIGHT 14.0f
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class BScrollBar : public BView {
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public:
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BScrollBar(BRect frame, const char* name,
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BView* target, float min, float max,
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orientation direction);
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BScrollBar(const char* name, BView* target,
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float min, float max,
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orientation orientation);
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BScrollBar(BMessage* archive);
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virtual ~BScrollBar();
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static BArchivable* Instantiate(BMessage* archive);
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virtual status_t Archive(BMessage* archive,
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bool deep = true) const;
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virtual void AllAttached();
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virtual void AllDetached();
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virtual void AttachedToWindow();
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virtual void DetachedFromWindow();
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virtual void Draw(BRect updateRect);
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virtual void FrameMoved(BPoint new_position);
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virtual void FrameResized(float newWidth, float newHeight);
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virtual void MessageReceived(BMessage* message);
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virtual void MouseDown(BPoint where);
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virtual void MouseUp(BPoint where);
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virtual void MouseMoved(BPoint where, uint32 code,
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const BMessage* dragMessage);
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virtual void WindowActivated(bool active);
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void SetValue(float value);
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float Value() const;
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void SetProportion(float);
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float Proportion() const;
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virtual void ValueChanged(float newValue);
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void SetRange(float min, float max);
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void GetRange(float* _min, float* _max) const;
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void SetSteps(float smallStep, float largeStep);
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void GetSteps(float* _smallStep,
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float* _largeStep) const;
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void SetTarget(BView *target);
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void SetTarget(const char* targetName);
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BView* Target() const;
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void SetOrientation(orientation direction);
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orientation Orientation() const;
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// TODO: Make this a virtual method, it should be one,
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// but it's not important right now. This is supposed
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// to be used in case the BScrollBar should draw part of
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// the focus indication of the target view for aesthetical
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// reasons. BScrollView will forward this method.
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status_t SetBorderHighlighted(bool highlight);
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virtual void GetPreferredSize(float* _width,
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float* _height);
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virtual void ResizeToPreferred();
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virtual void MakeFocus(bool focus = true);
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virtual BSize MinSize();
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virtual BSize MaxSize();
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virtual BSize PreferredSize();
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virtual status_t GetSupportedSuites(BMessage* message);
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virtual BHandler* ResolveSpecifier(BMessage* message,
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int32 index, BMessage* specifier,
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int32 what, const char* property);
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virtual status_t Perform(perform_code d, void* arg);
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private:
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class Private;
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friend class Private;
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friend status_t control_scrollbar(scroll_bar_info* info,
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BScrollBar *bar);
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// for use within the preflet
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virtual void _ReservedScrollBar1();
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virtual void _ReservedScrollBar2();
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virtual void _ReservedScrollBar3();
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virtual void _ReservedScrollBar4();
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// disabled
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BScrollBar& operator=(const BScrollBar& other);
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bool _DoubleArrows() const;
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void _UpdateThumbFrame();
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float _ValueFor(BPoint where) const;
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int32 _ButtonFor(BPoint where) const;
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BRect _ButtonRectFor(int32 button) const;
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void _UpdateTargetValue(BPoint where);
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void _UpdateArrowButtons();
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BSize _MinSize() const;
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private:
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float fMin;
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float fMax;
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float fSmallStep;
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float fLargeStep;
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float fValue;
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float fProportion;
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BView* fTarget;
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orientation fOrientation;
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Private* fPrivateData;
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uint32 _reserved[4];
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};
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#endif // _SCROLL_BAR_H
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