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class TGViewPort: public TGCompositeFrame


TGCanvas and TGViewPort and TGContainer

A TGCanvas is a frame containing two scrollbars (a horizontal and
a vertical) and a viewport. The viewport acts as the window through
which we look at the contents of the container frame.

A TGContainer frame manages a content area. It can display and
control a hierarchy of multi-column items, and provides the ability
to add new items at any time. By default it doesn't map subwindows
which are items of the container. In this case subwindow must
provide DrawCopy method, see for example TGLVEntry class.
It is also possible to use option which allow to map subwindows.
This option has much slower drawing speed in case of more than 1000
 items placed in container. To activate this option the fMapSubwindows
data member must be set to kTRUE (for example TTVLVContainer class)

The TGContainer class can handle the keys:

o  F7, Ctnrl-F - activate search dialog
o  F3, Ctnrl-G - continue search
o  End - go to the last item in container
o  Home - go to the first item in container
o  PageUp,PageDown,arrow keys - navigate inside container
o  Return/Enter - equivalent to double click of the mouse button
o  Contrl-A - select/activate all items.
o  Space - invert selection.


Function Members (Methods)

public:
TGViewPort(const TGWindow* p = 0, UInt_t w = 1, UInt_t h = 1, UInt_t options = kChildFrame, Pixel_t back = GetDefaultFrameBackground())
~TGViewPort()
voidTObject::AbstractMethod(const char* method) const
virtual voidTGFrame::Activate(Bool_t)
virtual voidTGCompositeFrame::AddFrame(TGFrame* f, TGLayoutHints* l = 0)
voidTGFrame::AddInput(UInt_t emask)
virtual voidTObject::AppendPad(Option_t* option = "")
static Bool_tTQObject::AreAllSignalsBlocked()
Bool_tTQObject::AreSignalsBlocked() const
static Bool_tTQObject::BlockAllSignals(Bool_t b)
Bool_tTQObject::BlockSignals(Bool_t b)
virtual voidTObject::Browse(TBrowser* b)
virtual voidTGFrame::ChangeBackground(Pixel_t back)
virtual voidTQObject::ChangedBy(const char* method)SIGNAL
virtual voidTGCompositeFrame::ChangeOptions(UInt_t options)
virtual voidTGCompositeFrame::ChangeSubframesBackground(Pixel_t back)
static TClass*Class()
virtual const char*TObject::ClassName() const
virtual voidTGCompositeFrame::Cleanup()
virtual voidTObject::Clear(Option_t* = "")
virtual TObject*TObject::Clone(const char* newname = "") const
voidTQObject::CollectClassSignalLists(TList& list, TClass* cls)
virtual Int_tTObject::Compare(const TObject* obj) const
Bool_tTQObject::Connect(const char* signal, const char* receiver_class, void* receiver, const char* slot)
static Bool_tTQObject::Connect(TQObject* sender, const char* signal, const char* receiver_class, void* receiver, const char* slot)
static Bool_tTQObject::Connect(const char* sender_class, const char* signal, const char* receiver_class, void* receiver, const char* slot)
virtual voidTQObject::Connected(const char*)
Bool_tTGFrame::Contains(Int_t x, Int_t y) const
virtual voidTObject::Copy(TObject& object) const
virtual voidTGFrame::Delete(Option_t* = "")
virtual voidTGFrame::DeleteWindow()
virtual voidTQObject::Destroyed()SIGNAL
virtual voidTGWindow::DestroySubwindows()
virtual voidTGWindow::DestroyWindow()
Bool_tTQObject::Disconnect(const char* signal = 0, void* receiver = 0, const char* slot = 0)
static Bool_tTQObject::Disconnect(TQObject* sender, const char* signal = 0, void* receiver = 0, const char* slot = 0)
static Bool_tTQObject::Disconnect(const char* class_name, const char* signal, void* receiver = 0, const char* slot = 0)
virtual voidTQObject::Disconnected(const char*)
virtual Int_tTObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual voidTObject::Draw(Option_t* option = "")
virtual voidDrawBorder()
virtual voidTGFrame::DrawClass() const
virtual TObject*TGFrame::DrawClone(Option_t* = "") const
virtual voidTGFrame::DrawCopy(Handle_t, Int_t, Int_t)
virtual voidTGFrame::Dump() const
voidTQObject::Emit(const char* signal)
voidTQObject::Emit(const char* signal, Long_t* paramArr)
voidTQObject::Emit(const char* signal, const char* params)
voidTQObject::Emit(const char* signal, Double_t param)
voidTQObject::Emit(const char* signal, Long_t param)
voidTQObject::Emit(const char* signal, Long64_t param)
voidTQObject::Emit(const char* signal, Bool_t param)
voidTQObject::Emit(const char* signal, Char_t param)
voidTQObject::Emit(const char* signal, UChar_t param)
voidTQObject::Emit(const char* signal, Short_t param)
voidTQObject::Emit(const char* signal, UShort_t param)
voidTQObject::Emit(const char* signal, Int_t param)
voidTQObject::Emit(const char* signal, UInt_t param)
voidTQObject::Emit(const char* signal, ULong_t param)
voidTQObject::Emit(const char* signal, ULong64_t param)
voidTQObject::Emit(const char* signal, Float_t param)
voidTQObject::EmitVA(const char* signal, Int_t nargs)
voidTQObject::EmitVA(const char* signal, Int_t nargs, va_list va)
virtual voidTObject::Error(const char* method, const char* msgfmt) const
virtual voidTObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual voidTObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual voidTObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual voidTObject::Fatal(const char* method, const char* msgfmt) const
virtual TGFrameElement*TGCompositeFrame::FindFrameElement(TGFrame* f) const
virtual TObject*TObject::FindObject(const char* name) const
virtual TObject*TObject::FindObject(const TObject* obj) const
virtual Pixel_tTGFrame::GetBackground() const
static const TGGC&TGFrame::GetBckgndGC()
static const TGGC&TGFrame::GetBlackGC()
static Pixel_tTGFrame::GetBlackPixel()
Int_tTGFrame::GetBorderWidth() const
TGClient*TGObject::GetClient() const
TGFrame*GetContainer() const
static Int_tTGWindow::GetCounter()
static Pixel_tTGFrame::GetDefaultFrameBackground()
virtual UInt_tTGCompositeFrame::GetDefaultHeight() const
static Pixel_tTGFrame::GetDefaultSelectedBackground()
virtual TGDimensionGetDefaultSize() const
virtual UInt_tTGCompositeFrame::GetDefaultWidth() const
virtual TDNDData*TGFrame::GetDNDData(Atom_t)
virtual Int_tTGFrame::GetDragType() const
virtual Option_t*TObject::GetDrawOption() const
virtual Int_tTGFrame::GetDropType() const
static Long_tTObject::GetDtorOnly()
virtual UInt_tTGWindow::GetEditDisabled() const
UInt_tTGFrame::GetEventMask() const
virtual Pixel_tTGFrame::GetForeground() const
TGFrameElement*TGFrame::GetFrameElement() const
virtual TGFrame*TGCompositeFrame::GetFrameFromPoint(Int_t x, Int_t y)
UInt_tTGFrame::GetHeight() const
static const TGGC&TGFrame::GetHilightGC()
Int_tGetHPos() const
virtual const char*TObject::GetIconName() const
Handle_tTGObject::GetId() const
virtual TGLayoutManager*TGCompositeFrame::GetLayoutManager() const
virtual TList*TGCompositeFrame::GetList() const
TList*TQObject::GetListOfClassSignals() const
TList*TQObject::GetListOfConnections() const
TList*TQObject::GetListOfSignals() const
virtual const TGWindow*TGWindow::GetMainFrame() const
UInt_tTGFrame::GetMaxHeight() const
UInt_tTGFrame::GetMaxWidth() const
UInt_tTGFrame::GetMinHeight() const
UInt_tTGFrame::GetMinWidth() const
virtual const char*TGWindow::GetName() const
virtual char*TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_tTObject::GetObjectStat()
virtual Option_t*TObject::GetOption() const
virtual UInt_tTGFrame::GetOptions() const
const TGWindow*TGWindow::GetParent() const
static const TGGC&TGFrame::GetShadowGC()
TGDimensionTGFrame::GetSize() const
Int_tTGCompositeFrame::GetState(TGFrame* f) const
virtual const char*TObject::GetTitle() const
virtual UInt_tTObject::GetUniqueID() const
Int_tGetVPos() const
static const TGGC&TGFrame::GetWhiteGC()
static Pixel_tTGFrame::GetWhitePixel()
UInt_tTGFrame::GetWidth() const
Int_tTGFrame::GetX() const
Int_tTGFrame::GetY() const
virtual Bool_tTGCompositeFrame::HandleButton(Event_t*)
virtual Bool_tTGFrame::HandleClientMessage(Event_t* event)
virtual Bool_tTGFrame::HandleColormapChange(Event_t*)
virtual Bool_tHandleConfigureNotify(Event_t* event)
virtual Bool_tTGCompositeFrame::HandleCrossing(Event_t*)
virtual Bool_tTGFrame::HandleDNDDrop(TDNDData*)
virtual Atom_tTGFrame::HandleDNDEnter(Atom_t*)
virtual Bool_tTGFrame::HandleDNDFinished()
virtual Bool_tTGFrame::HandleDNDLeave()
virtual Atom_tTGFrame::HandleDNDPosition(Int_t, Int_t, Atom_t, Int_t, Int_t)
virtual Bool_tTGCompositeFrame::HandleDoubleClick(Event_t*)
virtual Bool_tTGCompositeFrame::HandleDragDrop(TGFrame* frame, Int_t x, Int_t y, TGLayoutHints* lo)
virtual Bool_tTGCompositeFrame::HandleDragEnter(TGFrame*)
virtual Bool_tTGCompositeFrame::HandleDragLeave(TGFrame*)
virtual Bool_tTGCompositeFrame::HandleDragMotion(TGFrame*)
virtual Bool_tTGFrame::HandleEvent(Event_t* event)
virtual Bool_tTGWindow::HandleExpose(Event_t* event)
virtual Bool_tTGCompositeFrame::HandleFocusChange(Event_t*)
virtual Bool_tTGWindow::HandleIdleEvent(TGIdleHandler*)
virtual Bool_tTGCompositeFrame::HandleKey(Event_t*)
virtual Bool_tTGCompositeFrame::HandleMotion(Event_t*)
virtual Bool_tTGCompositeFrame::HandleSelection(Event_t*)
virtual Bool_tTGFrame::HandleSelectionClear(Event_t*)
virtual Bool_tTGFrame::HandleSelectionRequest(Event_t*)
virtual Bool_tTGWindow::HandleTimer(TTimer*)
virtual Bool_tTQObject::HasConnection(const char* signal_name) const
virtual ULong_tTGObject::Hash() const
virtual voidTGCompositeFrame::HideFrame(TGFrame* f)
virtual voidTQObject::HighPriority(const char* signal_name, const char* slot_name = 0)
virtual voidTGWindow::IconifyWindow()
virtual voidTObject::Info(const char* method, const char* msgfmt) const
virtual Bool_tTObject::InheritsFrom(const char* classname) const
virtual Bool_tTObject::InheritsFrom(const TClass* cl) const
virtual voidTGFrame::Inspect() const
voidTObject::InvertBit(UInt_t f)
virtual TClass*IsA() const
virtual Bool_tTGFrame::IsActive() const
Bool_tTGCompositeFrame::IsArranged(TGFrame* f) const
Bool_tTGCompositeFrame::IsArranged(TGFrameElement* ptr) const
virtual Bool_tTGCompositeFrame::IsComposite() const
Bool_tTGFrame::IsDNDSource() const
Bool_tTGFrame::IsDNDTarget() const
virtual Bool_tTGCompositeFrame::IsEditable() const
virtual Bool_tTGObject::IsEqual(const TObject* obj) const
virtual Bool_tTObject::IsFolder() const
virtual Bool_tTGCompositeFrame::IsLayoutBroken() const
virtual Bool_tTGWindow::IsMapped()
virtual Bool_tTGCompositeFrame::IsMapSubwindows() const
Bool_tTObject::IsOnHeap() const
virtual Bool_tTObject::IsSortable() const
Bool_tTGCompositeFrame::IsVisible(TGFrame* f) const
Bool_tTGCompositeFrame::IsVisible(TGFrameElement* ptr) const
Bool_tTObject::IsZombie() const
virtual voidLayout()
static voidTQObject::LoadRQ_OBJECT()
virtual voidTGWindow::LowerWindow()
virtual voidTQObject::LowPriority(const char* signal_name, const char* slot_name = 0)
virtual voidTObject::ls(Option_t* option = "") const
virtual voidTGFrame::MapRaised()
virtual voidTGCompositeFrame::MapSubwindows()
virtual voidTGFrame::MapWindow()
voidTObject::MayNotUse(const char* method) const
virtual voidTQObject::Message(const char* msg)SIGNAL
virtual voidTGFrame::Move(Int_t x, Int_t y)
virtual voidTGFrame::MoveResize(Int_t x, Int_t y, UInt_t w = 0, UInt_t h = 0)
virtual Int_tTGCompositeFrame::MustCleanup() const
virtual Bool_tTObject::Notify()
virtual Int_tTQObject::NumberOfConnections() const
virtual Int_tTQObject::NumberOfSignals() const
voidTObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
static voidTObject::operator delete(void* ptr)
static voidTObject::operator delete(void* ptr, void* vp)
static voidTObject::operator delete[](void* ptr)
static voidTObject::operator delete[](void* ptr, void* vp)
void*TObject::operator new(size_t sz)
void*TObject::operator new(size_t sz, void* vp)
void*TObject::operator new[](size_t sz)
void*TObject::operator new[](size_t sz, void* vp)
virtual voidTObject::Paint(Option_t* option = "")
virtual voidTObject::Pop()
virtual voidTGCompositeFrame::Print(Option_t* option = "") const
virtual voidTGFrame::ProcessedConfigure(Event_t* event)SIGNAL
virtual voidTGFrame::ProcessedEvent(Event_t* event)SIGNAL
virtual Bool_tTGCompositeFrame::ProcessMessage(Long_t, Long_t, Long_t)
virtual voidTGWindow::RaiseWindow()
virtual Int_tTObject::Read(const char* name)
virtual voidTGFrame::ReallyDelete()
virtual voidTObject::RecursiveRemove(TObject* obj)
virtual voidTGCompositeFrame::RemoveAll()
virtual voidTGCompositeFrame::RemoveFrame(TGFrame* f)
voidTGFrame::RemoveInput(UInt_t emask)
virtual voidTGFrame::ReparentWindow(const TGWindow* p, Int_t x = 0, Int_t y = 0)
virtual voidTGWindow::RequestFocus()
voidTObject::ResetBit(UInt_t f)
virtual voidTGFrame::Resize(TGDimension size)
virtual voidTGFrame::Resize(UInt_t w = 0, UInt_t h = 0)
virtual voidTGObject::SaveAs(const char* filename = "", Option_t* option = "") const
virtual voidTGCompositeFrame::SavePrimitive(ostream& out, Option_t* option = "")
virtual voidTGCompositeFrame::SavePrimitiveSubframes(ostream& out, Option_t* option = "")
voidTGFrame::SaveUserColor(ostream& out, Option_t*)
virtual voidTGFrame::SendMessage(const TGWindow* w, Long_t msg, Long_t parm1, Long_t parm2)
virtual voidTGFrame::SetBackgroundColor(Pixel_t back)
virtual voidTGWindow::SetBackgroundPixmap(Pixmap_t pixmap)
voidTObject::SetBit(UInt_t f)
voidTObject::SetBit(UInt_t f, Bool_t set)
virtual voidTGCompositeFrame::SetCleanup(Int_t mode = kLocalCleanup)
voidSetContainer(TGFrame* f)
voidTGFrame::SetDNDSource(Bool_t onoff)
voidTGFrame::SetDNDTarget(Bool_t onoff)
virtual voidTGFrame::SetDragType(Int_t type)
virtual voidTGFrame::SetDrawOption(Option_t* = "")
virtual voidTGFrame::SetDropType(Int_t type)
static voidTObject::SetDtorOnly(void* obj)
virtual voidTGCompositeFrame::SetEditable(Bool_t on = kTRUE)
virtual voidTGCompositeFrame::SetEditDisabled(UInt_t on = 1)
virtual voidTGFrame::SetForegroundColor(Pixel_t)
voidTGFrame::SetFrameElement(TGFrameElement* fe)
virtual voidTGFrame::SetHeight(UInt_t h)
virtual voidSetHPos(Int_t xpos)
virtual voidTGCompositeFrame::SetLayoutBroken(Bool_t on = kTRUE)
virtual voidTGCompositeFrame::SetLayoutManager(TGLayoutManager* l)
virtual voidTGCompositeFrame::SetMapSubwindows(Bool_t on)
virtual voidTGFrame::SetMaxHeight(UInt_t h)
virtual voidTGFrame::SetMaxWidth(UInt_t w)
virtual voidTGFrame::SetMinHeight(UInt_t h)
virtual voidTGFrame::SetMinWidth(UInt_t w)
virtual voidTGWindow::SetName(const char* name)
static voidTObject::SetObjectStat(Bool_t stat)
voidSetPos(Int_t xpos, Int_t ypos)
virtual voidTGFrame::SetSize(const TGDimension& s)
virtual voidTObject::SetUniqueID(UInt_t uid)
virtual voidSetVPos(Int_t ypos)
virtual voidTGFrame::SetWidth(UInt_t w)
virtual voidTGWindow::SetWindowName(const char* name = 0)
virtual voidTGFrame::SetX(Int_t x)
virtual voidTGFrame::SetY(Int_t y)
virtual voidTGCompositeFrame::ShowFrame(TGFrame* f)
virtual voidShowMembers(TMemberInspector& insp)
virtual voidStreamer(TBuffer& b)
voidStreamerNVirtual(TBuffer& b)
virtual voidTObject::SysError(const char* method, const char* msgfmt) const
Bool_tTObject::TestBit(UInt_t f) const
Int_tTObject::TestBits(UInt_t f) const
virtual Bool_tTGCompositeFrame::TranslateCoordinates(TGFrame* child, Int_t x, Int_t y, Int_t& fx, Int_t& fy)
virtual voidTGFrame::UnmapWindow()
virtual voidTObject::UseCurrentStyle()
virtual voidTObject::Warning(const char* method, const char* msgfmt) const
virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const
protected:
static Int_tTQObject::CheckConnectArgs(TQObject* sender, TClass* sender_class, const char* signal, TClass* receiver_class, const char* slot)
static Bool_tTQObject::ConnectToClass(TQObject* sender, const char* signal, TClass* receiver_class, void* receiver, const char* slot)
static Bool_tTQObject::ConnectToClass(const char* sender_class, const char* signal, TClass* receiver_class, void* receiver, const char* slot)
virtual voidTObject::DoError(int level, const char* location, const char* fmt, va_list va) const
virtual voidTGFrame::DoRedraw()
virtual voidTGFrame::Draw3dRectangle(UInt_t type, Int_t x, Int_t y, UInt_t w, UInt_t h)
static Time_tTGFrame::GetLastClick()
TStringTGFrame::GetOptionString() const
const TGResourcePool*TGFrame::GetResourcePool() const
virtual void*TGFrame::GetSender()
virtual const char*TQObject::GetSenderClassName() const
voidTObject::MakeZombie()
virtual voidTGFrame::StartGuiBuilding(Bool_t on = kTRUE)

Data Members

protected:
Pixel_tTGFrame::fBackgroundframe background color
Int_tTGFrame::fBorderWidthframe border width
TGClient*TGObject::fClientConnection to display server
TGFrame*fContainercontainer frame
Int_tTGFrame::fDNDStateEDNDFlags
UInt_tTGWindow::fEditDisabledflags used for "guibuilding"
UInt_tTGFrame::fEventMaskcurrenty active event mask
TGFrameElement*TGFrame::fFEpointer to frame element
UInt_tTGFrame::fHeightframe height
Handle_tTGObject::fIdX11/Win32 Window identifier
Bool_tTGCompositeFrame::fLayoutBrokenno layout manager is used
TGLayoutManager*TGCompositeFrame::fLayoutManagerlayout manager
TList*TGCompositeFrame::fListcontainer of frame elements
TList*TQObject::fListOfConnections! list of connections to this object
TList*TQObject::fListOfSignals! list of signals from this object
Bool_tTGCompositeFrame::fMapSubwindowskTRUE - map subwindows
UInt_tTGFrame::fMaxHeightmaximal frame height
UInt_tTGFrame::fMaxWidthmaximal frame width
UInt_tTGFrame::fMinHeightminimal frame height
UInt_tTGFrame::fMinWidthminimal frame width
Int_tTGCompositeFrame::fMustCleanupcleanup mode (see EFrameCleanup)
TStringTGWindow::fNamename of the window used in SavePrimitive()
Bool_tTGWindow::fNeedRedrawkTRUE if window needs to be redrawn
UInt_tTGFrame::fOptionsframe options
const TGWindow*TGWindow::fParentParent window
Bool_tTQObject::fSignalsBlocked! flag used for suppression of signals
UInt_tTGFrame::fWidthframe width
Int_tTGFrame::fXframe x position
Int_tfX0
Int_tTGFrame::fYframe y position
Int_tfY0position of container frame in viewport
static Bool_tTQObject::fgAllSignalsBlockedflag used for suppression of all signals
static const TGGC*TGFrame::fgBckgndGC
static const TGGC*TGFrame::fgBlackGC
static Pixel_tTGFrame::fgBlackPixel
static Int_tTGWindow::fgCountercounter of created windows in SavePrimitive
static Window_tTGFrame::fgDbw
static Int_tTGFrame::fgDbx
static Int_tTGFrame::fgDby
static Pixel_tTGFrame::fgDefaultFrameBackground
static TGLayoutHints*TGCompositeFrame::fgDefaultHintsdefault hints used by AddFrame()
static Pixel_tTGFrame::fgDefaultSelectedBackground
static const TGGC*TGFrame::fgHilightGC
static Bool_tTGFrame::fgInit
static UInt_tTGFrame::fgLastButton
static Time_tTGFrame::fgLastClick
static const TGGC*TGFrame::fgShadowGC
static UInt_tTGFrame::fgUserColor
static const TGGC*TGFrame::fgWhiteGC
static Pixel_tTGFrame::fgWhitePixel

Class Charts

Inheritance Inherited Members Includes Libraries
Class Charts

Function documentation

TGViewPort(const TGWindow* p = 0, UInt_t w = 1, UInt_t h = 1, UInt_t options = kChildFrame, Pixel_t back = GetDefaultFrameBackground())
 Create a viewport object.
void SetContainer(TGFrame* f)
 Add container frame to the viewport. We must make sure that the added
 container is at least a TGCompositeFrame (TGCanvas::AddFrame depends
 on it).
void SetHPos(Int_t xpos)
 Moves content of container frame in horizontal direction.
void SetVPos(Int_t ypos)
 Moves content of container frame in vertical direction.
void SetPos(Int_t xpos, Int_t ypos)
 Goto new position.
Bool_t HandleConfigureNotify(Event_t* event)
 Handle resize events.
TGContainer& operator=(const TGViewPort& )
void Layout()
TGViewPort(const TGViewPort& )
TGFrame * GetContainer() const
{ return fContainer; }
void DrawBorder()
{ }
TGDimension GetDefaultSize() const
{ return TGDimension(fWidth, fHeight); }
Int_t GetHPos() const
{ return fX0; }
Int_t GetVPos() const
{ return fY0; }