TGListView+¶
A list view is a widget that can contain a number of itemsarranged in a grid or list. The items can be represented eitherby a string or by an icon.
The TGListView is user callable. The other classes are serviceclasses of the list view.
A list view can generate the following events:
kC_CONTAINER, kCT_SELCHANGED, total items, selected items.
kC_CONTAINER, kCT_ITEMCLICK, which button, location (y<<16|x).
kC_CONTAINER, kCT_ITEMDBLCLICK, which button, location (y<<16|x).
TGLVEntry 继承 TGFrameItem that goes into a TGListView container
TGListView 继承 TGCanvasList view widget (iconbox, small icons or tabular view)
TGLVContainer 继承 TGContainer
class¶
enum EListViewMode {
kLVLargeIcons,
kLVSmallIcons,
kLVList,
kLVDetails
};
TGLVEntry
TGLVEntry(const TGWindow *p = 0,
const TGPicture *bigpic = 0, const TGPicture *smallpic = 0,
TGString *name = 0, TGString **subnames = 0,
EListViewMode ViewMode = kLVDetails,
UInt_t options = kChildFrame,
Pixel_t back = GetWhitePixel());
TGLVEntry(const TGLVContainer *p,
const TString& name, const TString& cname, TGString **subnames = 0,
UInt_t options = kChildFrame, Pixel_t back = GetWhitePixel());
virtual ~TGLVEntry();
virtual void SetViewMode(EListViewMode viewMode);
virtual void Activate(Bool_t a);
Bool_t IsActive() const { return fActive; }
TGString *GetItemName() const { return fItemName; }
virtual const char *GetTitle() const { return fItemName->GetString(); }
virtual void SetTitle(const char *text) { *fItemName = text; }
void SetItemName(const char *name) { *fItemName = name; }
const TGPicture *GetPicture() const { return fCurrent; }
EListViewMode GetViewMode() const { return fViewMode; }
void SetUserData(void *userData) { fUserData = userData; }
void *GetUserData() const { return fUserData; }
virtual TGString **GetSubnames() const { return fSubnames; }
virtual TGString *GetSubname(Int_t idx) const { if (fSubnames) return fSubnames[idx]; else return 0; }
virtual void SetSubnames(const char* n1="",const char* n2="",const char* n3="",
const char* n4="",const char* n5="",const char* n6="",
const char* n7="",const char* n8="",const char* n9="",
const char* n10="",const char* n11="",const char* n12="");
virtual void SetPictures(const TGPicture *bigpic = 0, const TGPicture *smallpic = 0);
virtual void SetColumns(Int_t *cpos, Int_t *jmode) { fCpos = cpos; fJmode = jmode; }
virtual void SetCheckedEntry(Bool_t check = kTRUE) { fChecked = check; }
virtual TGDimension GetDefaultSize() const;
virtual Int_t GetSubnameWidth(Int_t idx) const { return fCtw[idx]; }
virtual void DrawCopy(Handle_t id, Int_t x, Int_t y);
TGListView
TGListView(const TGWindow *p, UInt_t w, UInt_t h,
UInt_t options = kSunkenFrame | kDoubleBorder,
Pixel_t back = GetDefaultFrameBackground());
virtual ~TGListView();
virtual void ResizeColumns();
virtual void Layout();
virtual void LayoutHeader(TGFrame *head);
virtual Bool_t ProcessMessage(Long_t msg, Long_t parm1, Long_t parm2);
virtual void ScrollHeader(Int_t pos);
virtual void SetContainer(TGFrame *f);
virtual void AdjustHeaders() { fJustChanged = kTRUE; LayoutHeader(0); }
virtual void SetHeaders(Int_t ncolumns);
virtual void SetHeader(const char *s, Int_t hmode, Int_t cmode, Int_t idx);
virtual void SetDefaultHeaders();
virtual void SetViewMode(EListViewMode viewMode);
TGTextButton** GetHeaderButtons() { return fColHeader; }
UInt_t GetNumColumns() { return fNColumns; }
EListViewMode GetViewMode() const { return fViewMode; }
virtual const char *GetHeader(Int_t idx) const;
virtual void SavePrimitive(std::ostream &out, Option_t *option = "");
virtual void SetIncrements(Int_t hInc, Int_t vInc);
virtual void SetDefaultColumnWidth(TGVFileSplitter* splitter);
TGDimension GetMaxItemSize() const { return fMaxSize; }
virtual void SelectionChanged() { Emit("SelectionChanged()"); } //*SIGNAL*
virtual void Clicked(TGLVEntry *entry, Int_t btn); //*SIGNAL*
virtual void Clicked(TGLVEntry *entry, Int_t btn, Int_t x, Int_t y); //*SIGNAL*
virtual void DoubleClicked(TGLVEntry *entry, Int_t btn); //*SIGNAL*
virtual void DoubleClicked(TGLVEntry *entry, Int_t btn, Int_t x, Int_t y); //*SIGNAL*
TGLVContainer
TGLVContainer(const TGWindow *p, UInt_t w, UInt_t h,
UInt_t options = kSunkenFrame,
Pixel_t back = GetDefaultFrameBackground());
TGLVContainer(TGCanvas *p, UInt_t options = kSunkenFrame,
Pixel_t back = GetDefaultFrameBackground());
virtual ~TGLVContainer();
TGListView *GetListView() const { return fListView; }
virtual void AddItem(TGLVEntry *item)
{ AddFrame(item, fItemLayout); item->SetColumns(fCpos, fJmode); fTotal++; }
virtual void SelectEntry(TGLVEntry *item)
{ ActivateItem(item->GetFrameElement()); }
virtual void SetListView(TGListView *lv) { fListView = lv; }
virtual void RemoveItemWithData(void *userData);
virtual void SetViewMode(EListViewMode viewMode);
EListViewMode GetViewMode() const { return fViewMode; }
virtual void SetColumns(Int_t *cpos, Int_t *jmode);
virtual TGDimension GetPageDimension() const;
virtual TGDimension GetMaxItemSize() const;
virtual Int_t GetMaxSubnameWidth(Int_t idx) const;
virtual void SetColHeaders(const char* n1="",const char* n2="",const char* n3="",
const char* n4="",const char* n5="",const char* n6="",
const char* n7="",const char* n8="",const char* n9="",
const char* n10="",const char* n11="",const char* n12="");
virtual void LineUp(Bool_t select = kFALSE);
virtual void LineDown(Bool_t select = kFALSE);
virtual void LineLeft(Bool_t select = kFALSE);
virtual void LineRight(Bool_t select = kFALSE);
virtual Bool_t HandleButton(Event_t* event);
TList *GetSelectedItems();
TList *GetSelectedEntries();
Bool_t GetMultipleSelection() const { return fMultiSelect; };
void SetMultipleSelection(Bool_t multi = kTRUE) { fMultiSelect = multi; };
void SetHeaders(Int_t ncolumns) { fListView->SetHeaders(ncolumns); }
void SetHeader(const char *s, Int_t hmode, Int_t cmode, Int_t idx)
{ fListView->SetHeader(s,hmode,cmode,idx); }
void SetDefaultHeaders() { fListView->SetDefaultHeaders(); }
const char *GetHeader(Int_t idx) const { return fListView->GetHeader(idx); }
virtual void SavePrimitive(std::ostream &out, Option_t *option = "");