// @(#)root/gui:$Id$ // Author: Fons Rademakers 13/01/98 /************************************************************************* * Copyright (C) 1995-2000, 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_TGComboBox #define ROOT_TGComboBox ////////////////////////////////////////////////////////////////////////// // // // TGComboBox, TGComboBoxPopup // // // // A combobox (also known as a drop down listbox) allows the selection // // of one item out of a list of items. The selected item is visible in // // a little window. To view the list of possible items one has to click // // on a button on the right of the little window. This will drop down // // a listbox. After selecting an item from the listbox the box will // // disappear and the newly selected item will be shown in the little // // window. // // // // The TGComboBox is user callable. The TGComboBoxPopup is a service // // class of the combobox. // // // // Selecting an item in the combobox will generate the event: // // kC_COMMAND, kCM_COMBOBOX, combobox id, item id. // // // ////////////////////////////////////////////////////////////////////////// #include "TGListBox.h" class TGScrollBarElement; class TGTextEntry; class TGComboBoxPopup : public TGCompositeFrame { protected: TGListBox *fListBox; TGLBEntry *fSelected; private: TGComboBoxPopup(const TGComboBoxPopup&); // Not implemented TGComboBoxPopup& operator=(const TGComboBoxPopup&); // Not implemented public: TGComboBoxPopup(const TGWindow *p = 0, UInt_t w = 1, UInt_t h = 1, UInt_t options = kVerticalFrame, Pixel_t back = GetWhitePixel()); virtual Bool_t HandleButton(Event_t *); void KeyPressed(TGFrame*, UInt_t, UInt_t); void SetListBox(TGListBox *lb) { fListBox = lb; } void PlacePopup(Int_t x, Int_t y, UInt_t w, UInt_t h); void EndPopup(); ClassDef(TGComboBoxPopup,0) // Combobox popup window }; class TGComboBox : public TGCompositeFrame, public TGWidget { private: TGComboBox(const TGComboBox&); // Not implemented TGComboBox& operator=(const TGComboBox&); // Not implemented protected: TGLBEntry *fSelEntry; // selected item frame TGTextEntry *fTextEntry; // text entry TGScrollBarElement *fDDButton; // button controlling drop down of popup TGComboBoxPopup *fComboFrame; // popup containing a listbox TGListBox *fListBox; // the listbox with text items const TGPicture *fBpic; // down arrow picture used in fDDButton TGLayoutHints *fLhs; // layout hints for selected item frame TGLayoutHints *fLhb; // layout hints for fDDButton TGLayoutHints *fLhdd; // layout hints for fListBox virtual void Init(); public: TGComboBox(const TGWindow *p = 0, Int_t id = -1, UInt_t options = kHorizontalFrame | kSunkenFrame | kDoubleBorder, Pixel_t back = GetWhitePixel()); TGComboBox(const TGWindow *p, const char *text, Int_t id = -1, UInt_t options = kHorizontalFrame | kSunkenFrame | kDoubleBorder, Pixel_t back = GetWhitePixel()); virtual ~TGComboBox(); virtual void DrawBorder(); virtual TGDimension GetDefaultSize() const { return TGDimension(fWidth, fHeight); } virtual Bool_t HandleButton(Event_t *event); virtual Bool_t HandleDoubleClick(Event_t *event); virtual Bool_t HandleMotion(Event_t *event); virtual Bool_t HandleSelection(Event_t *event); virtual Bool_t HandleSelectionRequest(Event_t *event); virtual Bool_t ProcessMessage(Long_t msg, Long_t parm1, Long_t parm2); virtual void AddEntry(TGString *s, Int_t id) { fListBox->AddEntry(s, id); Resize(); } virtual void AddEntry(const char *s, Int_t id) { fListBox->AddEntry(s, id); Resize(); } virtual void AddEntry(TGLBEntry *lbe, TGLayoutHints *lhints) { fListBox->AddEntry(lbe, lhints); Resize(); } virtual void InsertEntry(TGString *s, Int_t id, Int_t afterID) { fListBox->InsertEntry(s, id, afterID); Resize(); } virtual void InsertEntry(const char *s, Int_t id, Int_t afterID) { fListBox->InsertEntry(s, id, afterID); Resize(); } virtual void InsertEntry(TGLBEntry *lbe, TGLayoutHints *lhints, Int_t afterID) { fListBox->InsertEntry(lbe, lhints, afterID); Resize(); } virtual void NewEntry(const char *s = "Entry") { fListBox->NewEntry(s); Resize(); } //*MENU* virtual void RemoveEntry(Int_t id = -1); //*MENU* virtual void RemoveAll(); //*MENU* virtual void Layout(); virtual Bool_t IsTextInputEnabled() const { return (fTextEntry != 0); } virtual void EnableTextInput(Bool_t on); //*TOGGLE* *GETTER=IsTextInputEnabled virtual void RemoveEntries(Int_t from_ID, Int_t to_ID) { fListBox->RemoveEntries(from_ID, to_ID); } virtual Int_t GetNumberOfEntries() const { return fListBox->GetNumberOfEntries(); } virtual TGListBox *GetListBox() const { return fListBox; } virtual TGTextEntry *GetTextEntry() const { return fTextEntry; } virtual TGLBEntry *FindEntry(const char *s) const; virtual void Select(Int_t id, Bool_t emit = kTRUE); virtual Int_t GetSelected() const { return fListBox->GetSelected(); } virtual TGLBEntry *GetSelectedEntry() const { return fListBox->GetSelectedEntry(); } virtual void SetTopEntry(TGLBEntry *e, TGLayoutHints *lh); virtual void SetEnabled(Bool_t on = kTRUE); //*TOGGLE* *GETTER=IsEnabled virtual Bool_t IsEnabled() const { return fDDButton->IsEnabled(); } virtual void SortByName(Bool_t ascend = kTRUE) { fListBox->SortByName(ascend); } //*MENU*icon=bld_sortup.png* virtual void Selected(Int_t widgetId, Int_t id); // *SIGNAL* virtual void Selected(Int_t id) { Emit("Selected(Int_t)", id); } // *SIGNAL* virtual void Selected(const char *txt) { Emit("Selected(char*)", txt); } // *SIGNAL* virtual void ReturnPressed(); // *SIGNAL* virtual void SavePrimitive(std::ostream &out, Option_t *option = ""); ClassDef(TGComboBox,0) // Combo box widget }; ////////////////////////////////////////////////////////////////////////// // // // The TGLineStyleComboBox user callable and it creates // // a combobox for selecting the line style. // // // ////////////////////////////////////////////////////////////////////////// class TGLineStyleComboBox : public TGComboBox { public: TGLineStyleComboBox(const TGWindow *p = 0, Int_t id = -1, UInt_t options = kHorizontalFrame | kSunkenFrame | kDoubleBorder, Pixel_t back = GetWhitePixel()); virtual void SavePrimitive(std::ostream &out, Option_t *option = ""); ClassDef(TGLineStyleComboBox, 0) // Line style combobox widget }; ////////////////////////////////////////////////////////////////////////// // // // The TGLineWidthComboBox user callable and it creates // // a combobox for selecting the line width. // // // ////////////////////////////////////////////////////////////////////////// class TGLineWidthComboBox : public TGComboBox { public: TGLineWidthComboBox(const TGWindow *p = 0, Int_t id = -1, UInt_t options = kHorizontalFrame | kSunkenFrame | kDoubleBorder, Pixel_t back = GetWhitePixel(), Bool_t none=kFALSE); virtual void SavePrimitive(std::ostream &out, Option_t *option = ""); ClassDef(TGLineWidthComboBox, 0) // Line width combobox widget }; ////////////////////////////////////////////////////////////////////////// // // // The TGFontTypeComboBox is user callable and it creates // // a combobox for selecting the font. // // // ////////////////////////////////////////////////////////////////////////// const Int_t kMaxFonts = 20; class TGFontTypeComboBox : public TGComboBox { protected: FontStruct_t fFonts[kMaxFonts]; public: TGFontTypeComboBox(const TGWindow *p = 0, Int_t id = -1, UInt_t options = kHorizontalFrame | kSunkenFrame | kDoubleBorder, Pixel_t bask = GetWhitePixel()); virtual ~TGFontTypeComboBox(); ClassDef(TGFontTypeComboBox, 0) // Font type combobox widget }; #endif