TGMenu+¶
TGMenuEntry 继承 TObject , friend TGPopupMenu , TGMenuBarThis class contains all information about a menu entry.It is a fully protected class used internally by TGPopupMenu.
TGPopupMenu 继承 TGFrame ,friend TGMenuTitle , TGMenuBar , TGSplitButton This class creates a popup menu object. Popup menu’s are attached to TGMenuBar objects.
TGMenuTitle 继承 TGFrameThis class creates a menu title. A menu title is a frame to which a popup menu can be attached. Menu titles are automatically created when adding a popup menu to a menubar.
TGMenuBar 继承 TGHorizontalFrame , friend TGPopupMenu This class creates a menu bar.
class¶
TGMenuEntry
TGMenuEntry(): fEntryId(0), fUserData(0), fType(), fStatus(0),
fEx(0), fEy(0), fEw(0), fEh(0), fLabel(0), fShortcut(0), fPic(0), fPopup(0) { }
virtual ~TGMenuEntry() { if (fLabel) delete fLabel; if (fShortcut) delete fShortcut; }
Int_t GetEntryId() const { return fEntryId; }
const char *GetName() const { return fLabel ? fLabel->GetString() : 0; }
const char *GetShortcutText() const { return fShortcut ? fShortcut->GetString() : 0; }
virtual Int_t GetStatus() const { return fStatus; }
EMenuEntryType GetType() const { return fType; }
TGPopupMenu *GetPopup() const { return fPopup; }
TGHotString *GetLabel() const { return fLabel; }
TGString *GetShortcut() const { return fShortcut; }
Int_t GetEx() const { return fEx; }
Int_t GetEy() const { return fEy; }
UInt_t GetEw() const { return fEw; }
UInt_t GetEh() const { return fEh; }
const TGPicture *GetPic() const { return fPic; }
void *GetUserData() const { return fUserData; }
TGPopupMenu
TGPopupMenu(const TGWindow *p = 0, UInt_t w = 10, UInt_t h = 10,
UInt_t options = 0);
virtual ~TGPopupMenu();
virtual void AddEntry(TGHotString *s, Int_t id, void *ud = 0,
const TGPicture *p = 0, TGMenuEntry *before = 0);
virtual void AddEntry(const char *s, Int_t id, void *ud = 0,
const TGPicture *p = 0, TGMenuEntry *before = 0);
virtual void AddSeparator(TGMenuEntry *before = 0);
virtual void AddLabel(TGHotString *s, const TGPicture *p = 0,
TGMenuEntry *before = 0);
virtual void AddLabel(const char *s, const TGPicture *p = 0,
TGMenuEntry *before = 0);
virtual void AddPopup(TGHotString *s, TGPopupMenu *popup,
TGMenuEntry *before = 0, const TGPicture *p = 0);
virtual void AddPopup(const char *s, TGPopupMenu *popup,
TGMenuEntry *before = 0, const TGPicture *p = 0);
virtual void EnableEntry(Int_t id);
virtual void DisableEntry(Int_t id);
virtual Bool_t IsEntryEnabled(Int_t id);
virtual void HideEntry(Int_t id);
virtual Bool_t IsEntryHidden(Int_t id);
virtual void DefaultEntry(Int_t id);
virtual void CheckEntry(Int_t id);
virtual void CheckEntryByData(void *user_data);
virtual void UnCheckEntry(Int_t id);
virtual void UnCheckEntryByData(void *user_data);
virtual void UnCheckEntries();
virtual Bool_t IsEntryChecked(Int_t id);
virtual void RCheckEntry(Int_t id, Int_t IDfirst, Int_t IDlast);
virtual Bool_t IsEntryRChecked(Int_t id);
virtual void PlaceMenu(Int_t x, Int_t y, Bool_t stick_mode,
Bool_t grab_pointer);
virtual Int_t EndMenu(void *&userData);
virtual void DeleteEntry(Int_t id);
virtual void DeleteEntry(TGMenuEntry *entry);
virtual TGMenuEntry *GetEntry(Int_t id);
virtual TGMenuEntry *GetCurrent() const { return fCurrent; }
virtual TGMenuEntry *GetEntry(const char *s);
const TList *GetListOfEntries() const { return fEntryList; }
virtual void DrawBorder();
virtual Bool_t HandleButton(Event_t *event);
virtual Bool_t HandleMotion(Event_t *event);
virtual Bool_t HandleCrossing(Event_t *event);
virtual Bool_t HandleTimer(TTimer *t);
virtual void Associate(const TGWindow *w) { fMsgWindow = w; }
virtual void SetMenuBar(TGMenuBar *bar) { fMenuBar = bar; }
TGMenuBar *GetMenuBar() const { return fMenuBar; }
virtual void Activate(Bool_t) { }
virtual void Activate(TGMenuEntry *entry);
virtual void SavePrimitive(std::ostream &out, Option_t *option = "");
UInt_t GetEntrySep() const { return fEntrySep; }
virtual void SetEntrySep(UInt_t sep) { fEntrySep = sep; }
virtual void PoppedUp() { Emit("PoppedUp()"); } // *SIGNAL*
virtual void PoppedDown() { Emit("PoppedDown()"); } // *SIGNAL*
virtual void Highlighted(Int_t id) { Emit("Highlighted(Int_t)", id); } // *SIGNAL*
virtual void Activated(Int_t id) { Emit("Activated(Int_t)", id); } // *SIGNAL*
TGMenuTitle
static FontStruct_t GetDefaultFontStruct();
static const TGGC &GetDefaultSelectedGC();
static const TGGC &GetDefaultGC();
TGMenuTitle(const TGWindow *p = 0, TGHotString *s = 0, TGPopupMenu *menu = 0,
GContext_t norm = GetDefaultGC()(),
FontStruct_t font = GetDefaultFontStruct(),
UInt_t options = 0);
virtual ~TGMenuTitle() { if (fLabel) delete fLabel; }
Pixel_t GetTextColor() const { return fTextColor; }
void SetTextColor(Pixel_t col) { fTextColor = col; }
virtual void SetState(Bool_t state);
Bool_t GetState() const { return fState; }
Int_t GetHotKeyCode() const { return fHkeycode; }
TGPopupMenu *GetMenu() const { return fMenu; }
const char *GetName() const { return fLabel ? fLabel->GetString() : 0; }
virtual void DoSendMessage();
virtual void SavePrimitive(std::ostream &out, Option_t *option = "");
TGMenuBar
TGMenuBar(const TGWindow *p = 0, UInt_t w = 60, UInt_t h = 20,
UInt_t options = kHorizontalFrame | kRaisedFrame);
virtual ~TGMenuBar();
virtual void AddPopup(TGHotString *s, TGPopupMenu *menu, TGLayoutHints *l,
TGPopupMenu *before = 0);
virtual void AddPopup(const char *s, TGPopupMenu *menu, TGLayoutHints *l,
TGPopupMenu *before = 0);
virtual TGPopupMenu *AddPopup(const TString &s, Int_t padleft = 4, Int_t padright = 0,
Int_t padtop = 0, Int_t padbottom = 0);
virtual void AddTitle(TGMenuTitle *title, TGLayoutHints *l, TGPopupMenu *before = 0);
virtual TGPopupMenu *GetPopup(const char *s);
virtual TGPopupMenu *RemovePopup(const char *s);
virtual TGMenuTitle *GetCurrent() const { return fCurrent; }
virtual TList *GetTitles() const { return fTitles; }
virtual Bool_t HandleButton(Event_t *event);
virtual Bool_t HandleMotion(Event_t *event);
virtual Bool_t HandleKey(Event_t *event);
virtual void SavePrimitive(std::ostream &out, Option_t *option = "");
virtual void Layout();
void PopupConnection();
TGFrameElement* GetLastOnLeft();
code¶
#include "TGMenu.h"
// TGMenuBar
// 最上面那行弹出菜单的标签
TGMenuBar *fMenuBar;// main menu bar
fMenuBar = new TGMenuBar(this, 35, 50, kHorizontalFrame);
fMenuBar->AddPopup("&File", fMenuFile/*子菜单TGPopupMenu*/, new TGLayoutHints(kLHintsTop|kLHintsLeft, 0, 4, 0, 0));
fMenuBar->AddPopup("&Help", fMenuHelp, new TGLayoutHints(kLHintsTop|kLHintsRight));
AddFrame(fMenuBar, new TGLayoutHints(kLHintsTop | kLHintsExpandX, 2, 2, 2, 5));
// TGPopupMenu
// 最上面那行弹出菜单的子菜单
TGPopupMenu *fMenuFile; // "File" popup menu entry
TGPopupMenu *fMenuHelp; // "Help" popup menu entry
fMenuFile = new TGPopupMenu(gClient->GetRoot());
fMenuFile->AddEntry(" &Open...\tCtrl+O", IDs, 0,gClient->GetPicture("bld_open.png"));
fMenuFile->AddEntry(" &Browse...\tCtrl+B", IDs);
fMenuFile->AddEntry(" &New Canvas\tCtrl+N", IDs);
fMenuFile->AddEntry(" &Close Window\tCtrl+W", IDs);
fMenuFile->AddSeparator();//分割线
fMenuFile->AddEntry(" E&xit\tCtrl+Q", M_FILE_EXIT, 0,gClient->GetPicture("bld_exit.png"));
fMenuFile->Connect("Activated(Int_t)", "DNDMainFrame", this,"HandleMenu(Int_t)"/*deal IDs*/);
fMenuFile->DisableEntry(IDs);//显示灰色，无法按
fMenuFile->HideEntry(IDs);//隐藏，不显示
fMenuHelp = new TGPopupMenu(gClient->GetRoot());
fMenuHelp->AddEntry(" &About...", M_HELP_ABOUT, 0,gClient->GetPicture("about.xpm"));
fMenuHelp->Connect("Activated(Int_t)", "DNDMainFrame", this,"HandleMenu(Int_t)");
fMenuView = new TGPopupMenu(gClient->GetRoot());
fMenuView->AddEntry("&Dock", M_VIEW_DOCK);
fMenuView->DisableEntry(M_VIEW_DOCK);
fMenuView->AddEntry("&Undock", M_VIEW_UNDOCK);
fMenuView->AddSeparator();
fMenuView->AddEntry("Enable U&ndock", M_VIEW_ENBL_DOCK);
fMenuView->AddEntry("Enable &Hide", M_VIEW_ENBL_HIDE);
fMenuView->CheckEntry(M_VIEW_ENBL_DOCK);
fMenuView->CheckEntry(M_VIEW_ENBL_HIDE);
fMenuDock->Connect("Undocked()", "TestMainFrame", this, "HandleMenu(=M_VIEW_UNDOCK)");