// @(#)root/gui:$Id$ // Author: Fons Rademakers 10/01/98 /************************************************************************* * Copyright (C) 1995-2021, Rene Brun and Fons Rademakers. * * All rights reserved. * * * * For the licensing terms see $ROOTSYS/LICENSE. * * For the list of contributors see $ROOTSYS/README/CREDITS. * *************************************************************************/ #ifndef ROOT_TGScrollBar #define ROOT_TGScrollBar #include "TGButton.h" //--- scrollbar types enum EScrollBarMode { kSBHorizontal, kSBVertical }; class TTimer; class TGScrollBarElement : public TGFrame { private: TGScrollBarElement(const TGScrollBarElement&) = delete; TGScrollBarElement& operator=(const TGScrollBarElement&) = delete; protected: Int_t fState; ///< state of scrollbar element (button up or down) const TGPicture *fPic; ///< picture in scrollbar element const TGPicture *fPicN; ///< picture for normal state of scrollbar element const TGPicture *fPicD; ///< picture for disabled state of scrollbar element Pixel_t fBgndColor; ///< background color Pixel_t fHighColor; ///< highlight color Int_t fStyle; ///< modern or classic style public: TGScrollBarElement(const TGWindow *p = nullptr, const TGPicture *pic = nullptr, UInt_t w = 1, UInt_t h = 1, UInt_t options = kRaisedFrame | kDoubleBorder, Pixel_t back = GetDefaultFrameBackground()); ~TGScrollBarElement() override; virtual void SetState(Int_t state); void DrawBorder() override; virtual void SetEnabled(Bool_t on = kTRUE); virtual Bool_t IsEnabled() const { return !(fState & kButtonDisabled); } Bool_t HandleCrossing(Event_t *event) override; ClassDefOverride(TGScrollBarElement,0) // Scrollbar element (head, tail, slider) }; class TGScrollBar : public TGFrame, public TGWidget { private: TGScrollBar(const TGScrollBar&) = delete; TGScrollBar& operator=(const TGScrollBar&) = delete; protected: Int_t fX0, fY0; ///< current slider position in pixels Int_t fXp, fYp; ///< previous slider position in pixels Bool_t fDragging; ///< in dragging mode? Bool_t fGrabPointer; ///< grab pointer when dragging Int_t fRange; ///< logical upper range of scrollbar Int_t fPsize; ///< logical page size of scrollbar Int_t fPos; ///< logical current position Int_t fSliderSize; ///< logical slider size Int_t fSliderRange; ///< logical slider range Int_t fSmallInc; ///< Small Increment in the sliding algorithm TGScrollBarElement *fHead; ///< head button of scrollbar TGScrollBarElement *fTail; ///< tail button of scrollbar TGScrollBarElement *fSlider; ///< slider const TGPicture *fHeadPic; ///< picture in head (up or left arrow) const TGPicture *fTailPic; ///< picture in tail (down or right arrow) TTimer *fRepeat; ///< repeat rate timer (when mouse stays pressed) Window_t fSubw; ///< sub window in which mouse is pressed Bool_t fAccelerated; ///< kFALSE - normal, kTRUE - accelerated Pixel_t fBgndColor; ///< background color Pixel_t fHighColor; ///< highlight color static Pixmap_t fgBckgndPixmap; static Int_t fgScrollBarWidth; public: static Pixmap_t GetBckgndPixmap(); static Int_t GetScrollBarWidth(); TGScrollBar(const TGWindow *p = nullptr, UInt_t w = 1, UInt_t h = 1, UInt_t options = kChildFrame, Pixel_t back = GetDefaultFrameBackground(), const char *headPicName = "", const char *tailPicName = ""); ~TGScrollBar() override; void GrabPointer(Bool_t grab) { fGrabPointer = grab; } void DrawBorder() override { } Bool_t HandleButton(Event_t *event) override = 0; Bool_t HandleCrossing(Event_t *event) override; Bool_t HandleMotion(Event_t *event) override = 0; Bool_t HandleTimer(TTimer *t) override; void Layout() override = 0; virtual void SetDragging(Bool_t drag) { fDragging = drag; } virtual void SetRange(Int_t range, Int_t page_size) = 0; virtual void SetPosition(Int_t pos) = 0; virtual Int_t GetPosition() const { return fPos; } virtual Int_t GetPageSize() const { return fPsize; } virtual Int_t GetRange() const { return fRange; } void Resize(UInt_t w = 0, UInt_t h = 0) override { TGFrame::Resize(w, h); SetRange(fRange, fPsize); } void MoveResize(Int_t x, Int_t y, UInt_t w = 0, UInt_t h = 0) override { TGFrame::MoveResize(x, y, w, h); SetRange(fRange, fPsize); } void Resize(TGDimension size) override { Resize(size.fWidth, size.fHeight); } void ChangeBackground(Pixel_t back) override; virtual void SetAccelerated(Bool_t m = kTRUE) { fAccelerated = m; } Bool_t IsAccelerated() const { return fAccelerated; } void MapSubwindows() override { TGWindow::MapSubwindows(); } TGScrollBarElement *GetHead() const { return fHead; } TGScrollBarElement *GetTail() const { return fTail; } TGScrollBarElement *GetSlider() const { return fSlider; } virtual void PositionChanged(Int_t pos) { Emit("PositionChanged(Int_t)", pos); } //*SIGNAL* virtual void RangeChanged(Int_t range) { Emit("RangeChanged(Int_t)", range); } //*SIGNAL* virtual void PageSizeChanged(Int_t range) { Emit("PageSizeChanged(Int_t)", range); } //*SIGNAL* virtual Int_t GetSmallIncrement() { return fSmallInc; } virtual void SetSmallIncrement(Int_t increment) { fSmallInc = increment; } ClassDefOverride(TGScrollBar,0) // Scrollbar widget }; class TGHScrollBar : public TGScrollBar { public: TGHScrollBar(const TGWindow *p = nullptr, UInt_t w = 4, UInt_t h = 2, UInt_t options = kHorizontalFrame, Pixel_t back = GetDefaultFrameBackground()); ~TGHScrollBar() override { } Bool_t HandleButton(Event_t *event) override; Bool_t HandleMotion(Event_t *event) override; TGDimension GetDefaultSize() const override { return TGDimension(fWidth, GetScrollBarWidth()); } void Layout() override; void SetRange(Int_t range, Int_t page_size) override; //*MENU* void SetPosition(Int_t pos) override; //*MENU* *GETTER=GetPosition void SavePrimitive(std::ostream &out, Option_t *option = "") override; ClassDefOverride(TGHScrollBar,0) // Horizontal scrollbar widget }; class TGVScrollBar : public TGScrollBar { public: TGVScrollBar(const TGWindow *p = nullptr, UInt_t w = 2, UInt_t h = 4, UInt_t options = kVerticalFrame, Pixel_t back = GetDefaultFrameBackground()); ~TGVScrollBar() override { } Bool_t HandleButton(Event_t *event) override; Bool_t HandleMotion(Event_t *event) override; TGDimension GetDefaultSize() const override { return TGDimension(GetScrollBarWidth(), fHeight); } void Layout() override; void SetRange(Int_t range, Int_t page_size) override; //*MENU* void SetPosition(Int_t pos) override; //*MENU* *GETTER=GetPosition void SavePrimitive(std::ostream &out, Option_t *option = "") override; ClassDefOverride(TGVScrollBar,0) // Vertical scrollbar widget }; #endif