wxwidgets/samples/widgets/searchctrl.cpp
Vadim Zeitlin 4f4c5fcfdf Use nullptr instead of NULL in the code and documentation
This is a combination of running clang-tidy with modernize-use-nullptr
check for some ports (GTK, X11, OSX) and manual changes to the ports for
which it couldn't be used easily (MSW, DFB) and also manually updating
the docs.

Also replace NULL with null or nullptr in the comments as this is more
consistent with the use of nullptr in the code and makes it simpler to
grep for the remaining occurrences of NULL itself.

And also use null in the assert messages.

Only a few occurrences of "NULL" are still left in non-C files, mostly
corresponding to unclear comments or string output which it might not be
safe to change.
2022-10-18 01:25:25 +02:00

262 lines
7.5 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Program: wxWidgets Widgets Sample
// Name: searchctrl.cpp
// Purpose: Shows wxSearchCtrl
// Author: Robin Dunn
// Created: 9-Dec-2006
// Copyright: (c) 2006
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// for compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#if wxUSE_SEARCHCTRL
// for all others, include the necessary headers
#ifndef WX_PRECOMP
#include "wx/app.h"
#include "wx/log.h"
#include "wx/radiobox.h"
#include "wx/statbox.h"
#endif
#include "wx/artprov.h"
#include "wx/sizer.h"
#include "wx/stattext.h"
#include "wx/checkbox.h"
#include "wx/menu.h"
#include "wx/srchctrl.h"
#include "widgets.h"
#include "icons/text.xpm"
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// control ids
enum
{
ID_SEARCH_CB = wxID_HIGHEST,
ID_CANCEL_CB,
ID_MENU_CB,
ID_SEARCHMENU,
ID_SEARCHMENU_LAST = ID_SEARCHMENU + 5
};
// ----------------------------------------------------------------------------
// ColourPickerWidgetsPage
// ----------------------------------------------------------------------------
class SearchCtrlWidgetsPage : public WidgetsPage
{
public:
SearchCtrlWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
virtual wxWindow *GetWidget() const override { return m_srchCtrl; }
virtual wxTextEntryBase *GetTextEntry() const override { return m_srchCtrl; }
virtual void RecreateWidget() override;
// lazy creation of the content
virtual void CreateContent() override;
protected:
void OnToggleSearchButton(wxCommandEvent&);
void OnToggleCancelButton(wxCommandEvent&);
void OnToggleSearchMenu(wxCommandEvent&);
void OnText(wxCommandEvent& event);
void OnTextEnter(wxCommandEvent& event);
void OnSearchMenu(wxCommandEvent& event);
void OnSearch(wxCommandEvent& event);
void OnSearchCancel(wxCommandEvent& event);
wxMenu* CreateTestMenu();
// (re)create the control
void CreateControl();
wxSearchCtrl* m_srchCtrl;
wxCheckBox* m_searchBtnCheck;
wxCheckBox* m_cancelBtnCheck;
wxCheckBox* m_menuBtnCheck;
private:
wxDECLARE_EVENT_TABLE();
DECLARE_WIDGETS_PAGE(SearchCtrlWidgetsPage)
};
// ----------------------------------------------------------------------------
// event tables
// ----------------------------------------------------------------------------
wxBEGIN_EVENT_TABLE(SearchCtrlWidgetsPage, WidgetsPage)
EVT_CHECKBOX(ID_SEARCH_CB, SearchCtrlWidgetsPage::OnToggleSearchButton)
EVT_CHECKBOX(ID_CANCEL_CB, SearchCtrlWidgetsPage::OnToggleCancelButton)
EVT_CHECKBOX(ID_MENU_CB, SearchCtrlWidgetsPage::OnToggleSearchMenu)
EVT_TEXT(wxID_ANY, SearchCtrlWidgetsPage::OnText)
EVT_TEXT_ENTER(wxID_ANY, SearchCtrlWidgetsPage::OnTextEnter)
EVT_MENU_RANGE(ID_SEARCHMENU, ID_SEARCHMENU_LAST,
SearchCtrlWidgetsPage::OnSearchMenu)
EVT_SEARCH(wxID_ANY, SearchCtrlWidgetsPage::OnSearch)
EVT_SEARCH_CANCEL(wxID_ANY, SearchCtrlWidgetsPage::OnSearchCancel)
wxEND_EVENT_TABLE()
// ============================================================================
// implementation
// ============================================================================
#if defined(__WXMAC__) || defined(__WXGTK__)
#define FAMILY_CTRLS NATIVE_CTRLS
#else
#define FAMILY_CTRLS GENERIC_CTRLS
#endif
IMPLEMENT_WIDGETS_PAGE(SearchCtrlWidgetsPage, "SearchCtrl",
FAMILY_CTRLS | EDITABLE_CTRLS | ALL_CTRLS);
SearchCtrlWidgetsPage::SearchCtrlWidgetsPage(WidgetsBookCtrl *book,
wxImageList *imaglist)
: WidgetsPage(book, imaglist, text_xpm)
{
}
void SearchCtrlWidgetsPage::CreateContent()
{
m_srchCtrl = nullptr;
CreateControl();
wxSizer* box = new wxStaticBoxSizer(
new wxStaticBox(this, -1, "Options"),
wxVERTICAL);
m_searchBtnCheck = new wxCheckBox(this, ID_SEARCH_CB, "Search button");
m_cancelBtnCheck = new wxCheckBox(this, ID_CANCEL_CB, "Cancel button");
m_menuBtnCheck = new wxCheckBox(this, ID_MENU_CB, "Search menu");
m_searchBtnCheck->SetValue(true);
box->Add(m_searchBtnCheck, wxSizerFlags().Border());
box->Add(m_cancelBtnCheck, wxSizerFlags().Border());
box->Add(m_menuBtnCheck, wxSizerFlags().Border());
wxSizer* sizer = new wxBoxSizer(wxHORIZONTAL);
sizer->Add(box, wxSizerFlags().Expand().TripleBorder());
sizer->Add(m_srchCtrl, wxSizerFlags().Centre().TripleBorder());
SetSizer(sizer);
}
void SearchCtrlWidgetsPage::CreateControl()
{
if (m_srchCtrl)
m_srchCtrl->Destroy();
long style = GetAttrs().m_defaultFlags;
m_srchCtrl = new wxSearchCtrl(this, -1, wxEmptyString, wxDefaultPosition,
FromDIP(wxSize(150, -1)), style);
}
void SearchCtrlWidgetsPage::RecreateWidget()
{
CreateControl();
GetSizer()->Add(m_srchCtrl, wxSizerFlags().Centre().TripleBorder());
Layout();
}
wxMenu* SearchCtrlWidgetsPage::CreateTestMenu()
{
wxMenu* menu = new wxMenu;
wxMenuItem* menuItem = menu->Append(wxID_ANY, "Recent Searches", "", wxITEM_NORMAL);
menuItem->Enable(false);
for ( int i = 0; i < ID_SEARCHMENU_LAST - ID_SEARCHMENU; i++ )
{
wxString itemText = wxString::Format("item %i",i);
wxString tipText = wxString::Format("tip %i",i);
menu->Append(ID_SEARCHMENU+i, itemText, tipText, wxITEM_CHECK);
}
return menu;
}
// ----------------------------------------------------------------------------
// event handlers
// ----------------------------------------------------------------------------
void SearchCtrlWidgetsPage::OnToggleSearchButton(wxCommandEvent&)
{
m_srchCtrl->ShowSearchButton( m_searchBtnCheck->GetValue() );
}
void SearchCtrlWidgetsPage::OnToggleCancelButton(wxCommandEvent&)
{
m_srchCtrl->ShowCancelButton( m_cancelBtnCheck->GetValue() );
}
void SearchCtrlWidgetsPage::OnToggleSearchMenu(wxCommandEvent&)
{
if ( m_menuBtnCheck->GetValue() )
m_srchCtrl->SetMenu( CreateTestMenu() );
else
m_srchCtrl->SetMenu(nullptr);
}
void SearchCtrlWidgetsPage::OnText(wxCommandEvent& event)
{
wxLogMessage("Search control: text changes, contents is \"%s\".",
event.GetString());
}
void SearchCtrlWidgetsPage::OnTextEnter(wxCommandEvent& event)
{
wxLogMessage("Search control: enter pressed, contents is \"%s\".",
event.GetString());
}
void SearchCtrlWidgetsPage::OnSearchMenu(wxCommandEvent& event)
{
int id = event.GetId() - ID_SEARCHMENU;
wxLogMessage("Search menu: \"item %i\" selected (%s).",
id, event.IsChecked() ? "checked" : "unchecked");
}
void SearchCtrlWidgetsPage::OnSearch(wxCommandEvent& event)
{
wxLogMessage("Search button: search for \"%s\".", event.GetString());
}
void SearchCtrlWidgetsPage::OnSearchCancel(wxCommandEvent& event)
{
wxLogMessage("Cancel button pressed.");
event.Skip();
}
#endif // wxUSE_SEARCHCTRL