132 lines
3.8 KiB
C++
132 lines
3.8 KiB
C++
/*
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* Copyright 2004-2009, Axel Dörfler, axeld@pinc-software.de.
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* Copyright 2014 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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* Authors:
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* Axel Dörfler, axeld@pinc-software.de
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* John Scipione, jscpione@gmail.com
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*/
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#ifndef _SCROLL_VIEW_H
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#define _SCROLL_VIEW_H
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#include <ScrollBar.h>
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/*! The BScrollView is a convenience class to add a scrolling
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mechanism to the target view.
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*/
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class BScrollView : public BView {
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public:
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BScrollView(const char* name, BView* target,
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uint32 resizingMode
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= B_FOLLOW_LEFT | B_FOLLOW_TOP,
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uint32 flags = 0, bool horizontal = false,
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bool vertical = false,
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border_style border = B_FANCY_BORDER);
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BScrollView(const char* name, BView* target,
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uint32 flags, bool horizontal,
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bool vertical, border_style border
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= B_FANCY_BORDER);
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BScrollView(BMessage* archive);
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virtual ~BScrollView();
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static BArchivable* Instantiate(BMessage* archive);
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virtual status_t Archive(BMessage* archive, bool deep = true) const;
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// Hook methods
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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 newPosition);
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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 MouseMoved(BPoint where, uint32 code,
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const BMessage* dragMessage);
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virtual void MouseUp(BPoint where);
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virtual void WindowActivated(bool active);
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// Size
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virtual void GetPreferredSize(float* _width, 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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// BScrollBar
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BScrollBar* ScrollBar(orientation posture) const;
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virtual void SetBorder(border_style border);
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border_style Border() const;
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virtual status_t SetBorderHighlighted(bool highlight);
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bool IsBorderHighlighted() const;
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void SetTarget(BView* target);
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BView* Target() const;
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// Scripting
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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 GetSupportedSuites(BMessage* message);
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virtual status_t Perform(perform_code d, void* arg);
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protected:
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virtual void LayoutInvalidated(bool descendants = false);
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virtual void DoLayout();
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private:
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// FBC padding and forbidden methods
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virtual void _ReservedScrollView1();
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virtual void _ReservedScrollView2();
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virtual void _ReservedScrollView3();
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virtual void _ReservedScrollView4();
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BScrollView& operator=(const BScrollView& other);
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private:
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friend class BView;
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void _Init(bool horizontal, bool vertical);
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float _BorderSize() const;
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BRect _InnerFrame() const;
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BSize _ComputeSize(BSize targetSize) const;
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BRect _ComputeFrame(BRect targetRect) const;
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void _AlignScrollBars(bool horizontal,
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bool vertical, BRect targetFrame);
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static BRect _ComputeFrame(BRect frame, bool horizontal,
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bool vertical, border_style border);
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static BRect _ComputeFrame(BView* target, bool horizontal,
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bool vertical, border_style border);
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static float _BorderSize(border_style border);
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static int32 _ModifyFlags(int32 flags, border_style border);
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private:
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BView* fTarget;
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BScrollBar* fHorizontalScrollBar;
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BScrollBar* fVerticalScrollBar;
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border_style fBorder;
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uint16 fPreviousWidth;
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uint16 fPreviousHeight;
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bool fHighlighted;
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uint32 _reserved[3];
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};
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#endif // _SCROLL_VIEW_H
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