{"id":3920,"date":"2021-12-21T10:55:41","date_gmt":"2021-12-21T10:55:41","guid":{"rendered":"http:\/\/truelogic.org\/wordpress\/?p=3920"},"modified":"2021-12-21T10:55:43","modified_gmt":"2021-12-21T10:55:43","slug":"5b-5-wxwidgets-gridbagsizer","status":"publish","type":"post","link":"https:\/\/truelogic.org\/wordpress\/2021\/12\/21\/5b-5-wxwidgets-gridbagsizer\/","title":{"rendered":"5b-5. wxWidgets – GridBagSizer"},"content":{"rendered":"\n

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

wxGridBagSizer adds more complexity to the wxFlexGridSizer by allowing controls to span multiple rows or columns. We can even specify which row or column to place a control in. This manipulation of placements can be done at runtime as well.<\/p>\n\n\n\n

The constructor of wxGridBagSizer does not specify the number of rows or columns. It only specifies the horizontal and vertical gap between the cells.<\/p>\n\n\n\n

The sample code below replicates the same window as in wxFlexGridSizer but using wxGridBagSizer<\/p>\n\n\n\n

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

gridbagsizer.h<\/pre>\n\n\n
\n#include <wx\/wxprec.h>\n#ifndef WX_PRECOMP\n\t#include <wx\/wx.h>\n#endif\n#include <wx\/gbsizer.h>\n\nclass GridBagSizer: public wxFrame {\n\tpublic:\n\t\tGridBagSizer(const wxString &title);\t\n};\n<\/pre><\/div>\n\n\n
gridbagsizer.cpp<\/pre>\n\n\n
\n#include "gridbagsizer.h"\n\nGridBagSizer::GridBagSizer(const wxString &title):\n\twxFrame(NULL, -1, title, wxDefaultPosition, wxSize(500,250)) {\n\n\twxPanel *basePanel = new wxPanel(this,-1);\n\twxGridBagSizer *gbs = new wxGridBagSizer(3,4);\n\tgbs->SetEmptyCellSize(wxSize(20,10));\n\tbasePanel->SetSizer(gbs);\n\n\twxStaticText *lblA1=  new wxStaticText(basePanel, -1, wxT("Answer 1"));\n\twxStaticText *lblA2=  new wxStaticText(basePanel, -1, wxT("Answer 2"));\n\twxStaticText *lblA3=  new wxStaticText(basePanel, -1, wxT("Answer 3"));\n\twxStaticText *lblA4=  new wxStaticText(basePanel, -1, wxT("Answer 4"));\n\n\n\twxTextCtrl *txtA1=  new wxTextCtrl(basePanel, -1, wxT(""));\n\twxTextCtrl *txtA2=  new wxTextCtrl(basePanel, -1, wxT(""));\n\twxTextCtrl *txtA3=  new wxTextCtrl(basePanel, -1, wxT(""));\n\twxTextCtrl *txtA4=  new wxTextCtrl(basePanel, -1, wxT(""), wxPoint(-1,-1), wxSize(-1,-1), wxTE_MULTILINE);\n\n\tgbs->Add(lblA1, wxGBPosition(0,0), wxGBSpan(1,1), wxEXPAND);\n\tgbs->Add(lblA2, wxGBPosition(1,0), wxGBSpan(1,1), wxEXPAND);\n\tgbs->Add(lblA3, wxGBPosition(2,0), wxGBSpan(1,1), wxEXPAND);\n\tgbs->Add(lblA4, wxGBPosition(3,0), wxGBSpan(1,1), wxEXPAND);\n\n\tgbs->Add(txtA1, wxGBPosition(0,1), wxGBSpan(1,4), wxEXPAND);\n\tgbs->Add(txtA2, wxGBPosition(1,1), wxGBSpan(1,4), wxEXPAND);\n\tgbs->Add(txtA3, wxGBPosition(2,1), wxGBSpan(1,4), wxEXPAND);\n\tgbs->Add(txtA4, wxGBPosition(3,1), wxGBSpan(4,4), wxEXPAND);\n\n\tgbs->AddGrowableRow(3);\n\tgbs->AddGrowableCol(1);\n\tCenter();\n}\n<\/pre><\/div>\n\n\n
The output is shown below<\/p>\n\n\n\n
\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"
OVERVIEW wxGridBagSizer adds more complexity to the wxFlexGridSizer by allowing controls to span multiple rows or columns. We can even specify which row or column […]<\/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":[302,365],"tags":[],"class_list":["post-3920","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cc","category-wxwidgets"],"_links":{"self":[{"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/posts\/3920","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=3920"}],"version-history":[{"count":3,"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/posts\/3920\/revisions"}],"predecessor-version":[{"id":3924,"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/posts\/3920\/revisions\/3924"}],"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=3920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/categories?post=3920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/truelogic.org\/wordpress\/wp-json\/wp\/v2\/tags?post=3920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}