src/apps/deskbar/InlineScrollView.h

   1 /*
   2  * Copyright 2012, Haiku, Inc.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Marc Flerackers (mflerackers@androme.be)
   7  *              Stefano Ceccherini (stefano.ceccherini@gmail.com)
   8  *              John Scipione (jscipione@gmail.com)
   9  */
  10 #ifndef INLINE_SCROLL_VIEW_H
  11 #define INLINE_SCROLL_VIEW_H
  12
  13
  14 #include <View.h>
  15
  16
  17 class BLayout;
  18 class BPoint;
  19 class ScrollArrow;
  20
  21 class TInlineScrollView : public BView {
  22 public:
  23                                                                 TInlineScrollView(BView* target,
  24                                                                         enum orientation orientation = B_VERTICAL);
  25         virtual                                         ~TInlineScrollView();
  26
  27         virtual void                            AttachedToWindow();
  28         virtual void                            DetachedFromWindow();
  29
  30         virtual void                            Draw(BRect updateRect);
  31
  32                                 void                    AttachScrollers();
  33                                 void                    DetachScrollers();
  34                                 bool                    HasScrollers() const;
  35
  36                                 void                    SetSmallStep(float step);
  37                                 void                    GetSteps(float* _smallStep,
  38                                                                                  float* _largeStep) const;
  39                                 void                    ScrollBy(const float& step);
  40
  41                                 bool                    Orientation() const { return fOrientation; };
  42                                 void                    SetOrientation(int32 orienation)
  43                                                                         { fOrientation = orienation; };
  44
  45 private:
  46                                 BView*                  fTarget;
  47                                 ScrollArrow*    fBeginScrollArrow;
  48                                 ScrollArrow*    fEndScrollArrow;
  49
  50                                 float                   fScrollStep;
  51                                 float                   fScrollValue;
  52                                 float                   fScrollLimit;
  53
  54                                 int32                   fOrientation;
  55 };
  56
  57
  58 #endif  // INLINE_SCROLL_VIEW_H