{"id":3946,"date":"2021-12-24T08:17:11","date_gmt":"2021-12-24T08:17:11","guid":{"rendered":"http:\/\/truelogic.org\/wordpress\/?p=3946"},"modified":"2021-12-24T08:17:12","modified_gmt":"2021-12-24T08:17:12","slug":"6b-wxwidgets-using-connect","status":"publish","type":"post","link":"https:\/\/truelogic.org\/wordpress\/2021\/12\/24\/6b-wxwidgets-using-connect\/","title":{"rendered":"6b. wxWidgets – Using Connect"},"content":{"rendered":"\n

OVERVIEW<\/strong><\/p>\n\n\n\n

We now take the sample from the previous section and implement the event handling using Connect instead of an Event table<\/p>\n\n\n\n

SAMPLE CODE<\/strong><\/p>\n\n\n\n

events-connect.h<\/pre>\n\n\n
\n#include <wx\/wxprec.h>\n#ifndef WX_PRECOMP\n\t#include <wx\/wx.h>\n#endif\n\n\nclass EventsConnect: public wxFrame {\n\tpublic:\n\t\tEventsConnect(const wxString& title);\n\t\tvoid OnClick(wxCommandEvent &event);\n\t\tvoid OnText(wxCommandEvent &event);\n\n\tprivate:\n\t\twxStaticText *m_lbl;\t\n\t\twxTextCtrl *m_edit;\n};\n\nconst int ID_BTN_1 = 101;\nconst int ID_BTN_2 = 102;\nconst int ID_BTN_3 = 103;\nconst int ID_TXT_1 = 104;\n\n<\/pre><\/div>\n\n\n
events-connect.cpp<\/pre>\n\n\n
\n#include "events-connect.h"\n\nEventsConnect::EventsConnect(const wxString& title):\n\twxFrame(NULL, -1, title, wxDefaultPosition, wxSize(500,200)) {\n\n\twxPanel *panelMain = new wxPanel(this, -1);\n\twxBoxSizer *vbox = new wxBoxSizer(wxVERTICAL);\n\tpanelMain->SetSizer(vbox);\n\t\n\twxPanel *panelBase = new wxPanel(panelMain, -1);\n\twxBoxSizer *hbox = new wxBoxSizer(wxHORIZONTAL);\n\n\tpanelBase->SetSizer(hbox);\n\n\twxButton *btn1 = new wxButton(panelBase, ID_BTN_1, wxT("Button 1"));\n\twxButton *btn2 = new wxButton(panelBase, ID_BTN_2, wxT("Button 2"));\n\twxButton *btn3 = new wxButton(panelBase, ID_BTN_3, wxT("Button 3"));\n\n\tm_edit = new wxTextCtrl(panelBase, ID_TXT_1, wxT(""));\n\n\thbox->Add(btn1, 1, wxALL,5);\n\thbox->Add(btn2, 1, wxALL,5);\n\thbox->Add(btn3, 1, wxALL,5);\n\thbox->Add(m_edit, 2, wxALL,5);\n\n\tvbox->Add(panelBase,1, wxALL,2);\n\n\tm_lbl = new wxStaticText(panelMain, -1, wxT("show event handling here"));\n\tvbox->Add(m_lbl, 1, wxALL | wxALIGN_CENTER);\n\t\n\tConnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(EventsConnect::OnClick));\n\tConnect(wxEVT_TEXT, wxCommandEventHandler(EventsConnect::OnText));\n\tCenter();\n}\n\n\t\nvoid EventsConnect::OnClick(wxCommandEvent &event) {\n\t\n\twxString strId = wxString::Format(wxT("%d"), event.GetId());\n\tstrId.Append(wxString(" clicked"));\n\tm_lbl->SetLabel(strId);\n}\n\nvoid EventsConnect::OnText(wxCommandEvent &event) {\n\t  m_lbl->SetLabel(m_edit->GetValue());\n\n}\n\n<\/pre><\/div>\n\n\n
main.h<\/pre>\n\n\n
\n#include <wx\/wxprec.h>\n#ifndef WX_PRECOMP\n\t#include <wx\/wx.h>\n#endif\n\nclass Main: public wxApp {\n\n\tpublic:\n\t\tvirtual bool OnInit();\n};\n<\/pre><\/div>\n\n\n
main.cpp<\/pre>\n\n\n
\n#include "main.h"\n#include "events-connect.h"\n\nIMPLEMENT_APP(Main)\n\nbool Main::OnInit() {\n\tEventsConnect *app = new EventsConnect(wxT("Events Connect"));\n\tapp->Show(true);\n\n}\n\n<\/pre><\/div>\n\n\n
The output is shown below<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"
OVERVIEW We now take the sample from the previous section and implement the event handling using Connect instead of an Event table SAMPLE CODE events-connect.h […]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":3595,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[302],"tags":[],"class_list":["post-3946","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cc"],"_links":{"self":[{"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/posts\/3946","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/comments?post=3946"}],"version-history":[{"count":3,"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/posts\/3946\/revisions"}],"predecessor-version":[{"id":3951,"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/posts\/3946\/revisions\/3951"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/media\/3595"}],"wp:attachment":[{"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/media?parent=3946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/categories?post=3946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/tags?post=3946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}