1482b250a7
Scroll bars should look and work identically to before on HaikuControlLook. Add DrawScrollBarButton() and DrawScrollBarThumb() and DrawScrollBarBorder() methods. These methods are used to draw scroll bars in a generic way so that they can be drawn differently by alternative control look's (e.g. BeControlLook). Also it gives us back drawing of scroll bar knobs. However the knob setting is not exposed in the interface in this commit. These methods are in addition to the 2 existing DrawScrollBarBackground() methods that draw the scroll bar background. One draws the area above and below the thumb and the other is called by the first to actually draw the area. The rest of the drawing besides the backgrounds was being done in BScrollBar before. To draw the scroll bar arrows and thumb we were recyling other ControlLook methods, while this worked well enough on HaikuControlLook it wasn't flexible enough for alternative control looks. DrawScrollBarButton() is used to draw the four scroll buttons and is typically (so far) used in combination with DrawArrowShape(). DrawScrollBarThumb() draws the scroll bar thumb. DrawScrollBarBorder() draws a 1px border around the entire scroll bar, potentially B_KEYBOARD_NAVIGATION_COLOR if focused (although this is feature not currently used.) Draw unscrollable scroll bars as if they were disabled including the buttons with their arrow shapes, background, and thumb. Add FBC backwords compatibility macros in ControlLook.cpp Change-Id: I9237c5ce45d17d674785111d51de951e5686306b Reviewed-on: https://review.haiku-os.org/c/haiku/+/351 Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
143 lines
3.9 KiB
C++
143 lines
3.9 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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// TODO: shouldn't these be moved into the implementation?
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#define SCROLL_BAR_MAXIMUM_KNOB_SIZE 50
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#define SCROLL_BAR_MINIMUM_KNOB_SIZE 9
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#define DISABLES_ON_WINDOW_DEACTIVATION 1
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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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#if DISABLES_ON_WINDOW_DEACTIVATION
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virtual void WindowActivated(bool active);
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#endif
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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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