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Warning, file /include/root/TGListView.h was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

0001 // @(#)root/gui:$Id$
0002 // Author: Fons Rademakers   17/01/98
0003 
0004 /*************************************************************************
0005  * Copyright (C) 1995-2021, Rene Brun and Fons Rademakers.               *
0006  * All rights reserved.                                                  *
0007  *                                                                       *
0008  * For the licensing terms see $ROOTSYS/LICENSE.                         *
0009  * For the list of contributors see $ROOTSYS/README/CREDITS.             *
0010  *************************************************************************/
0011 
0012 #ifndef ROOT_TGListView
0013 #define ROOT_TGListView
0014 
0015 
0016 #include "TGCanvas.h"
0017 #include "TGWidget.h"
0018 #include "TGSplitter.h"
0019 
0020 
0021 enum EListViewMode {
0022    kLVLargeIcons,
0023    kLVSmallIcons,
0024    kLVList,
0025    kLVDetails
0026 };
0027 
0028 
0029 class TGSelectedPicture;
0030 class TGTextButton;
0031 class TGListView;
0032 class TGLVContainer;
0033 class TGHeaderFrame;
0034 
0035 
0036 class TGLVEntry : public TGFrame {
0037 
0038 private:
0039    TGLVEntry(const TGLVEntry&) = delete;
0040    TGLVEntry& operator=(const TGLVEntry&) = delete;
0041 
0042 protected:
0043    TGString           *fItemName;    ///< name of item
0044    TGString          **fSubnames;    ///< sub names of item (details)
0045    Int_t              *fCpos;        ///< position of sub names
0046    Int_t              *fJmode;       ///< alignment for sub names
0047    Int_t              *fCtw;         ///< width of sub names
0048    UInt_t              fTWidth;      ///< width of name
0049    UInt_t              fTHeight;     ///< height of name
0050    Bool_t              fActive;      ///< true if item is active
0051    Bool_t              fChecked;     ///< true if item is checked
0052    EListViewMode       fViewMode;    ///< list view viewing mode
0053    const TGPicture    *fBigPic;      ///< big icon
0054    const TGPicture    *fSmallPic;    ///< small icon
0055    const TGPicture    *fCurrent;     ///< current icon
0056    const TGPicture    *fCheckMark;   ///< checkmark
0057    TGSelectedPicture  *fSelPic;      ///< selected icon
0058    GContext_t          fNormGC;      ///< drawing graphics context
0059    FontStruct_t        fFontStruct;  ///< text font
0060    void               *fUserData;    ///< pointer to user data structure
0061 
0062    static const TGFont *fgDefaultFont;
0063    static TGGC         *fgDefaultGC;
0064 
0065    void DoRedraw() override;
0066 
0067    static FontStruct_t  GetDefaultFontStruct();
0068    static const TGGC   &GetDefaultGC();
0069 
0070 public:
0071    TGLVEntry(const TGWindow *p = nullptr,
0072              const TGPicture *bigpic = nullptr, const TGPicture *smallpic = nullptr,
0073              TGString *name = nullptr, TGString **subnames = nullptr,
0074              EListViewMode ViewMode = kLVDetails,
0075              UInt_t options = kChildFrame,
0076              Pixel_t back = GetWhitePixel());
0077 
0078    TGLVEntry(const TGLVContainer *p,
0079              const TString& name, const TString& cname, TGString **subnames = nullptr,
0080              UInt_t options = kChildFrame, Pixel_t back = GetWhitePixel());
0081 
0082    ~TGLVEntry() override;
0083 
0084    virtual void SetViewMode(EListViewMode viewMode);
0085 
0086    void                Activate(Bool_t a) override;
0087    Bool_t              IsActive() const override { return fActive; }
0088    TGString           *GetItemName() const { return fItemName; }
0089    const char         *GetTitle() const override { return fItemName->GetString(); }
0090    virtual void        SetTitle(const char *text) { *fItemName = text; }
0091    void                SetItemName(const char *name) { *fItemName = name; }
0092    const TGPicture    *GetPicture() const { return fCurrent; }
0093    EListViewMode       GetViewMode() const { return fViewMode; }
0094    void                SetUserData(void *userData) { fUserData = userData; }
0095    void               *GetUserData() const { return fUserData; }
0096    virtual TGString  **GetSubnames() const { return fSubnames; }
0097    virtual TGString   *GetSubname(Int_t idx) const { if (fSubnames) return fSubnames[idx]; else return nullptr; }
0098    virtual void        SetSubnames(const char* n1="",const char* n2="",const char* n3="",
0099                                    const char* n4="",const char* n5="",const char* n6="",
0100                                    const char* n7="",const char* n8="",const char* n9="",
0101                                    const char* n10="",const char* n11="",const char* n12="");
0102    virtual void        SetPictures(const TGPicture *bigpic = nullptr, const TGPicture *smallpic = nullptr);
0103    virtual void        SetColumns(Int_t *cpos, Int_t *jmode) { fCpos = cpos; fJmode = jmode; }
0104    virtual void        SetCheckedEntry(Bool_t check = kTRUE) { fChecked = check; }
0105 
0106    TGDimension         GetDefaultSize() const override;
0107    virtual Int_t       GetSubnameWidth(Int_t idx) const { return fCtw[idx]; }
0108 
0109    void                DrawCopy(Handle_t id, Int_t x, Int_t y) override;
0110 
0111    ClassDefOverride(TGLVEntry,0)  // Item that goes into a TGListView container
0112 };
0113 
0114 
0115 class TGListView : public TGCanvas {
0116 
0117 private:
0118    TGListView(const TGListView&) = delete;
0119    TGListView& operator=(const TGListView&) = delete;
0120 
0121 protected:
0122    Int_t                 fNColumns;      ///< number of columns
0123    Int_t                *fColumns;       ///< column width
0124    Int_t                *fJmode;         ///< column text alignment
0125    EListViewMode         fViewMode;      ///< view mode if list view widget
0126    TGDimension           fMaxSize;       ///< maximum item size
0127    TGTextButton        **fColHeader;     ///< column headers for in detailed mode
0128    TString              *fColNames;      ///< column titles for in detailed mode
0129    TGVFileSplitter     **fSplitHeader;   ///< column splitters
0130    GContext_t            fNormGC;        ///< drawing graphics context
0131    FontStruct_t          fFontStruct;    ///< text font
0132    TGHeaderFrame        *fHeader;        ///< frame used as container for column headers
0133    Bool_t                fJustChanged;   ///< Indicate whether the view mode was just changed to Detail
0134    UInt_t                fMinColumnSize; ///< Minimun column size
0135 
0136    static const TGFont  *fgDefaultFont;
0137    static TGGC          *fgDefaultGC;
0138 
0139    static FontStruct_t   GetDefaultFontStruct();
0140    static const TGGC    &GetDefaultGC();
0141 
0142 public:
0143    TGListView(const TGWindow *p, UInt_t w, UInt_t h,
0144               UInt_t options = kSunkenFrame | kDoubleBorder,
0145               Pixel_t back = GetDefaultFrameBackground());
0146    ~TGListView() override;
0147 
0148    virtual void   ResizeColumns();
0149    void           Layout() override;
0150    virtual void   LayoutHeader(TGFrame *head);
0151    Bool_t         ProcessMessage(Longptr_t msg, Longptr_t parm1, Longptr_t parm2) override;
0152    virtual void   ScrollHeader(Int_t pos);
0153    void           SetContainer(TGFrame *f) override;
0154    virtual void   AdjustHeaders() { fJustChanged = kTRUE; LayoutHeader(nullptr); }
0155    virtual void   SetHeaders(Int_t ncolumns);
0156    virtual void   SetHeader(const char *s, Int_t hmode, Int_t cmode, Int_t idx);
0157    virtual void   SetDefaultHeaders();
0158    virtual void   SetViewMode(EListViewMode viewMode);
0159    TGTextButton** GetHeaderButtons() { return fColHeader; }
0160    UInt_t         GetNumColumns() { return fNColumns; }
0161    EListViewMode  GetViewMode() const { return fViewMode; }
0162    virtual const char *GetHeader(Int_t idx) const;
0163    void           SavePrimitive(std::ostream &out, Option_t *option = "") override;
0164    virtual void   SetIncrements(Int_t hInc, Int_t vInc);
0165    virtual void   SetDefaultColumnWidth(TGVFileSplitter* splitter);
0166    TGDimension    GetMaxItemSize() const { return fMaxSize; }
0167 
0168    virtual void SelectionChanged() { Emit("SelectionChanged()"); }  //*SIGNAL*
0169    virtual void Clicked(TGLVEntry *entry, Int_t btn);  //*SIGNAL*
0170    virtual void Clicked(TGLVEntry *entry, Int_t btn, Int_t x, Int_t y);  //*SIGNAL*
0171    virtual void DoubleClicked(TGLVEntry *entry, Int_t btn);  //*SIGNAL*
0172    virtual void DoubleClicked(TGLVEntry *entry, Int_t btn, Int_t x, Int_t y);  //*SIGNAL*
0173 
0174    ClassDefOverride(TGListView,0)  // List view widget (iconbox, small icons or tabular view)
0175 };
0176 
0177 
0178 class TGLVContainer : public TGContainer {
0179 
0180 private:
0181    TGLVContainer(const TGLVContainer&) = delete;
0182    TGLVContainer& operator=(const TGLVContainer&) = delete;
0183 
0184 protected:
0185    TGLayoutHints     *fItemLayout;    ///< item layout hints
0186    EListViewMode      fViewMode;      ///< list view viewing mode
0187    Int_t             *fCpos;          ///< position of sub names
0188    Int_t             *fJmode;         ///< alignment of sub names
0189    Bool_t             fMultiSelect;   ///< true = multiple file selection
0190    TGListView        *fListView;      ///< listview which contains this container
0191    TGLVEntry         *fLastActive;    ///< last active item
0192 
0193    void ActivateItem(TGFrameElement* el) override;
0194    void DeActivateItem(TGFrameElement* el) override;
0195 
0196 public:
0197    TGLVContainer(const TGWindow *p, UInt_t w, UInt_t h,
0198                  UInt_t options = kSunkenFrame,
0199                  Pixel_t back = GetDefaultFrameBackground());
0200    TGLVContainer(TGCanvas *p, UInt_t options = kSunkenFrame,
0201                  Pixel_t back = GetDefaultFrameBackground());
0202 
0203    ~TGLVContainer() override;
0204 
0205    TGListView  *GetListView() const { return fListView; }
0206 
0207    virtual void AddItem(TGLVEntry *item)
0208                   { AddFrame(item, fItemLayout); item->SetColumns(fCpos, fJmode); fTotal++; }
0209    virtual void SelectEntry(TGLVEntry *item);
0210 
0211    virtual void  SetListView(TGListView *lv) { fListView = lv; }
0212    virtual void  RemoveItemWithData(void *userData);
0213    virtual void  SetViewMode(EListViewMode viewMode);
0214    EListViewMode GetViewMode() const { return fViewMode; }
0215    virtual void  SetColumns(Int_t *cpos, Int_t *jmode);
0216 
0217    TGDimension GetPageDimension() const override;
0218    virtual TGDimension GetMaxItemSize() const;
0219    virtual Int_t GetMaxSubnameWidth(Int_t idx) const;
0220    virtual void  SetColHeaders(const char* n1="",const char* n2="",const char* n3="",
0221                                const char* n4="",const char* n5="",const char* n6="",
0222                                const char* n7="",const char* n8="",const char* n9="",
0223                                const char* n10="",const char* n11="",const char* n12="");
0224    void LineUp(Bool_t select = kFALSE) override;
0225    void LineDown(Bool_t select = kFALSE) override;
0226    void LineLeft(Bool_t select = kFALSE) override;
0227    void LineRight(Bool_t select = kFALSE) override;
0228 
0229    Bool_t HandleButton(Event_t* event) override;
0230    TList *GetSelectedItems();
0231    TList *GetSelectedEntries();
0232    Bool_t GetMultipleSelection() const { return fMultiSelect; };
0233    void   SetMultipleSelection(Bool_t multi = kTRUE) { fMultiSelect = multi; };
0234    void   SetHeaders(Int_t ncolumns) { fListView->SetHeaders(ncolumns); }
0235    void   SetHeader(const char *s, Int_t hmode, Int_t cmode, Int_t idx)
0236                               { fListView->SetHeader(s,hmode,cmode,idx); }
0237    void   SetDefaultHeaders() { fListView->SetDefaultHeaders(); }
0238    const char *GetHeader(Int_t idx) const { return fListView->GetHeader(idx); }
0239    void   SavePrimitive(std::ostream &out, Option_t *option = "") override;
0240 
0241    ClassDefOverride(TGLVContainer,0)  // Listview container
0242 };
0243 
0244 #endif
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