c++ - Qt 4: How to insert QAction in menu of mainwindow -


my problem qaction of custom widget outside , insert in menu of mainwindow. there qactionwidget inserts custom widget in menu.

 class qdesigner_widget_export photo_list: public qwidget {   q_object  public:   photo_list(qwidget* parent = 0);   ~photo_list();   int count();   qstring returnimagepath(const int i);   void sendsignalimageloaded();  public slots:   void addimagepath();   void deleteimagepath();  signals:   void imageloaded(int count);    //private: public:   ui::photo_list *m_photo_list_ui;   qstringlist m_image_path_list; };     class ui_photo_list { public:     qaction *addimageaction;     qaction *deleteimageaction;     qgridlayout *gridlayout;     qlistwidget *listwidget;      void setupui(qwidget *photo_list)     {         if (photo_list->objectname().isempty())             photo_list->setobjectname(qstring::fromutf8("photo_list"));         photo_list->resize(274, 210);         addimageaction = new qaction(photo_list);         addimageaction->setobjectname(qstring::fromutf8("addimageaction"));         deleteimageaction = new qaction(photo_list);         deleteimageaction->setobjectname(qstring::fromutf8("deleteimageaction"));         gridlayout = new qgridlayout(photo_list);         gridlayout->setcontentsmargins(0, 0, 0, 0);         gridlayout->setobjectname(qstring::fromutf8("gridlayout"));         gridlayout->sethorizontalspacing(0);         listwidget = new qlistwidget(photo_list);         listwidget->setobjectname(qstring::fromutf8("listwidget"));         listwidget->settextelidemode(qt::elidemiddle);         listwidget->setmovement(qlistview::static);         listwidget->setresizemode(qlistview::adjust);         listwidget->setviewmode(qlistview::iconmode);          gridlayout->addwidget(listwidget, 0, 0, 1, 1);           retranslateui(photo_list);          qmetaobject::connectslotsbyname(photo_list);     } ...

how add qaction *addimageaction in ( * )? (see comment below)

 class ui_cpdfa { public:     qaction *createpdfaction;     qwidget *centralwidget;     qgridlayout *gridlayout_2;     qgridlayout *gridlayout;     qlineedit *pdfpathlineedit;     qpushbutton *findpdfpathbutton;     photo_list *photo_list;     qtoolbar *toolbar;     qmenubar *menubar;     qmenu *menu;     qmenu *menu_2;      void setupui(qmainwindow *cpdfa)     {         if (cpdfa->objectname().isempty())             cpdfa->setobjectname(qstring::fromutf8("cpdfa"));         cpdfa->resize(386, 303);         createpdfaction = new qaction(cpdfa);         createpdfaction->setobjectname(qstring::fromutf8("createpdfaction"));         centralwidget = new qwidget(cpdfa);         centralwidget->setobjectname(qstring::fromutf8("centralwidget"));         gridlayout_2 = new qgridlayout(centralwidget);         gridlayout_2->setobjectname(qstring::fromutf8("gridlayout_2"));         gridlayout = new qgridlayout();         gridlayout->setobjectname(qstring::fromutf8("gridlayout"));         pdfpathlineedit = new qlineedit(centralwidget);         pdfpathlineedit->setobjectname(qstring::fromutf8("pdfpathlineedit"));          gridlayout->addwidget(pdfpathlineedit, 0, 0, 1, 1);          findpdfpathbutton = new qpushbutton(centralwidget);         findpdfpathbutton->setobjectname(qstring::fromutf8("findpdfpathbutton"));          gridlayout->addwidget(findpdfpathbutton, 0, 1, 1, 1);          photo_list = new photo_list(centralwidget);         photo_list->setobjectname(qstring::fromutf8("photo_list"));           gridlayout->addwidget(photo_list, 1, 0, 1, 2);           gridlayout_2->addlayout(gridlayout, 0, 0, 1, 1);          cpdfa->setcentralwidget(centralwidget);         toolbar = new qtoolbar(cpdfa);         toolbar->setobjectname(qstring::fromutf8("toolbar"));         cpdfa->addtoolbar(qt::toptoolbararea, toolbar);         menubar = new qmenubar(cpdfa);         menubar->setobjectname(qstring::fromutf8("menubar"));         menubar->setgeometry(qrect(0, 0, 386, 21));         menu = new qmenu(menubar);         menu->setobjectname(qstring::fromutf8("menu"));         menu_2 = new qmenu(menubar);         menu_2->setobjectname(qstring::fromutf8("menu_2"));         cpdfa->setmenubar(menubar);          toolbar->addaction(createpdfaction); //!!(*)         toolbar->addseparator();         menubar->addaction(menu->menuaction());         menubar->addaction(menu_2->menuaction());         menu->addseparator();         menu_2->addaction(createpdfaction); //!!(*)          retranslateui(cpdfa);          qmetaobject::connectslotsbyname(cpdfa);     } // setupui

i guess using qt creator , designing forms separately form editor.

your problem acutally want class a(a "larger" widget comprises subobjects) access members in namespace of subobject b(your photo_list widget).

to this,

  1. move inclusion "ui_b.h" b.cpp b.h

  2. inside b.h make private memeber ui::b *ui; public (or can have a , b become friends)

  3. after including "b.h" , having subobject pointer *b, can call b->ui->actionxxx in a access memebers of b, since b->ui points namespace includes memebers created b.ui file (which turn out inside "ui_b.h")


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