wxWidgets/samples/widgets/radiobox.cpp

491 lines
15 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Program: wxWidgets Widgets Sample
// Name: radiobox.cpp
// Purpose: Part of the widgets sample showing wxRadioBox
// Author: Vadim Zeitlin
// Created: 15.04.01
// Copyright: (c) 2001 Vadim Zeitlin
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// for compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#if wxUSE_RADIOBOX
// for all others, include the necessary headers
#ifndef WX_PRECOMP
#include "wx/log.h"
#include "wx/bitmap.h"
#include "wx/button.h"
#include "wx/checkbox.h"
#include "wx/radiobox.h"
#include "wx/statbox.h"
#include "wx/textctrl.h"
#endif
#include "wx/sizer.h"
#include "widgets.h"
#include "icons/radiobox.xpm"
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// control ids
enum
{
RadioPage_Reset = wxID_HIGHEST,
RadioPage_Update,
RadioPage_Selection,
RadioPage_Label,
RadioPage_LabelBtn,
RadioPage_EnableItem,
RadioPage_ShowItem,
RadioPage_Radio
};
// default values for the number of radiobox items
static const unsigned int DEFAULT_NUM_ENTRIES = 12;
static const unsigned int DEFAULT_MAJOR_DIM = 3;
// this item is enabled/disabled shown/hidden by the test checkboxes
static const int TEST_BUTTON = 1;
// ----------------------------------------------------------------------------
// RadioWidgetsPage
// ----------------------------------------------------------------------------
class RadioWidgetsPage : public WidgetsPage
{
public:
RadioWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
virtual wxWindow *GetWidget() const wxOVERRIDE { return m_radio; }
virtual void RecreateWidget() wxOVERRIDE { CreateRadio(); }
// lazy creation of the content
virtual void CreateContent() wxOVERRIDE;
protected:
// event handlers
void OnCheckOrRadioBox(wxCommandEvent& event);
void OnRadioBox(wxCommandEvent& event);
void OnButtonReset(wxCommandEvent& event);
void OnButtonRecreate(wxCommandEvent& event);
void OnButtonSelection(wxCommandEvent& event);
void OnButtonSetLabel(wxCommandEvent& event);
void OnEnableItem(wxCommandEvent& event);
void OnShowItem(wxCommandEvent& event);
void OnUpdateUIReset(wxUpdateUIEvent& event);
void OnUpdateUIUpdate(wxUpdateUIEvent& event);
void OnUpdateUISelection(wxUpdateUIEvent& event);
void OnUpdateUIEnableItem(wxUpdateUIEvent& event);
void OnUpdateUIShowItem(wxUpdateUIEvent& event);
// reset the wxRadioBox parameters
void Reset();
// (re)create the wxRadioBox
void CreateRadio();
// the controls
// ------------
// the check/radio boxes for styles
wxCheckBox *m_chkSpecifyRows;
wxCheckBox *m_chkEnableItem;
wxCheckBox *m_chkShowItem;
// the gauge itself and the sizer it is in
wxRadioBox *m_radio;
wxSizer *m_sizerRadio;
// the text entries for command parameters
wxTextCtrl *m_textNumBtns,
*m_textMajorDim,
*m_textCurSel,
*m_textSel,
*m_textLabel,
*m_textLabelBtns;
private:
wxDECLARE_EVENT_TABLE();
DECLARE_WIDGETS_PAGE(RadioWidgetsPage)
};
// ----------------------------------------------------------------------------
// event tables
// ----------------------------------------------------------------------------
wxBEGIN_EVENT_TABLE(RadioWidgetsPage, WidgetsPage)
EVT_BUTTON(RadioPage_Reset, RadioWidgetsPage::OnButtonReset)
EVT_BUTTON(RadioPage_Update, RadioWidgetsPage::OnButtonRecreate)
EVT_BUTTON(RadioPage_LabelBtn, RadioWidgetsPage::OnButtonRecreate)
EVT_BUTTON(RadioPage_Selection, RadioWidgetsPage::OnButtonSelection)
EVT_BUTTON(RadioPage_Label, RadioWidgetsPage::OnButtonSetLabel)
EVT_UPDATE_UI(RadioPage_Reset, RadioWidgetsPage::OnUpdateUIReset)
EVT_UPDATE_UI(RadioPage_Update, RadioWidgetsPage::OnUpdateUIUpdate)
EVT_UPDATE_UI(RadioPage_Selection, RadioWidgetsPage::OnUpdateUISelection)
EVT_RADIOBOX(RadioPage_Radio, RadioWidgetsPage::OnRadioBox)
EVT_CHECKBOX(RadioPage_EnableItem, RadioWidgetsPage::OnEnableItem)
EVT_CHECKBOX(RadioPage_ShowItem, RadioWidgetsPage::OnShowItem)
EVT_UPDATE_UI(RadioPage_EnableItem, RadioWidgetsPage::OnUpdateUIEnableItem)
EVT_UPDATE_UI(RadioPage_ShowItem, RadioWidgetsPage::OnUpdateUIShowItem)
EVT_CHECKBOX(wxID_ANY, RadioWidgetsPage::OnCheckOrRadioBox)
EVT_RADIOBOX(wxID_ANY, RadioWidgetsPage::OnCheckOrRadioBox)
wxEND_EVENT_TABLE()
// ============================================================================
// implementation
// ============================================================================
#if defined(__WXUNIVERSAL__)
#define FAMILY_CTRLS UNIVERSAL_CTRLS
#else
#define FAMILY_CTRLS NATIVE_CTRLS
#endif
IMPLEMENT_WIDGETS_PAGE(RadioWidgetsPage, "Radio",
FAMILY_CTRLS | WITH_ITEMS_CTRLS
);
RadioWidgetsPage::RadioWidgetsPage(WidgetsBookCtrl *book,
wxImageList *imaglist)
: WidgetsPage(book, imaglist, radio_xpm)
{
// init everything
m_chkSpecifyRows = (wxCheckBox *)NULL;
m_chkEnableItem = (wxCheckBox *)NULL;
m_chkShowItem = (wxCheckBox *)NULL;
m_textNumBtns =
m_textLabelBtns =
m_textLabel = (wxTextCtrl *)NULL;
m_radio = (wxRadioBox *)NULL;
m_sizerRadio = (wxSizer *)NULL;
}
void RadioWidgetsPage::CreateContent()
{
wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
// left pane
wxStaticBox *box = new wxStaticBox(this, wxID_ANY, "&Set style");
wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
m_chkSpecifyRows = CreateCheckBoxAndAddToSizer
(
sizerLeft,
"Major specifies &rows count"
);
wxSizer *sizerRow;
sizerRow = CreateSizerWithTextAndLabel("&Major dimension:",
wxID_ANY,
&m_textMajorDim);
sizerLeft->Add(sizerRow, wxSizerFlags().Expand().Border());
sizerRow = CreateSizerWithTextAndLabel("&Number of buttons:",
wxID_ANY,
&m_textNumBtns);
sizerLeft->Add(sizerRow, wxSizerFlags().Expand().Border());
wxButton *btn;
btn = new wxButton(this, RadioPage_Update, "&Update");
sizerLeft->Add(btn, wxSizerFlags().CentreHorizontal().Border());
sizerLeft->AddSpacer(5);
btn = new wxButton(this, RadioPage_Reset, "&Reset");
sizerLeft->Add(btn, wxSizerFlags().CentreHorizontal().Border(wxALL, 15));
// middle pane
wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, "&Change parameters");
wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
sizerRow = CreateSizerWithTextAndLabel("Current selection:",
wxID_ANY,
&m_textCurSel);
sizerMiddle->Add(sizerRow, wxSizerFlags().Expand().Border());
sizerRow = CreateSizerWithTextAndButton(RadioPage_Selection,
"&Change selection:",
wxID_ANY,
&m_textSel);
sizerMiddle->Add(sizerRow, wxSizerFlags().Expand().Border());
sizerRow = CreateSizerWithTextAndButton(RadioPage_Label,
"&Label for box:",
wxID_ANY,
&m_textLabel);
sizerMiddle->Add(sizerRow, wxSizerFlags().Expand().Border());
sizerRow = CreateSizerWithTextAndButton(RadioPage_LabelBtn,
"&Label for buttons:",
wxID_ANY,
&m_textLabelBtns);
sizerMiddle->Add(sizerRow, wxSizerFlags().Expand().Border());
m_chkEnableItem = CreateCheckBoxAndAddToSizer(sizerMiddle,
"Disable &2nd item",
RadioPage_EnableItem);
m_chkShowItem = CreateCheckBoxAndAddToSizer(sizerMiddle,
"Hide 2nd &item",
RadioPage_ShowItem);
// right pane
wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
m_sizerRadio = sizerRight; // save it to modify it later
Reset();
CreateRadio();
// the 3 panes panes compose the window
sizerTop->Add(sizerLeft,
wxSizerFlags(0).Expand().Border((wxALL & ~wxLEFT), 10));
sizerTop->Add(sizerMiddle,
wxSizerFlags(1).Expand().Border(wxALL, 10));
sizerTop->Add(sizerRight,
wxSizerFlags(0).Expand().Border((wxALL & ~wxRIGHT), 10));
// final initializations
SetSizer(sizerTop);
}
// ----------------------------------------------------------------------------
// operations
// ----------------------------------------------------------------------------
void RadioWidgetsPage::Reset()
{
m_textMajorDim->SetValue(wxString::Format("%u", DEFAULT_MAJOR_DIM));
m_textNumBtns->SetValue(wxString::Format("%u", DEFAULT_NUM_ENTRIES));
m_textLabel->SetValue("I'm a radiobox");
m_textLabelBtns->SetValue("item");
m_chkSpecifyRows->SetValue(false);
m_chkEnableItem->SetValue(true);
m_chkShowItem->SetValue(true);
}
void RadioWidgetsPage::CreateRadio()
{
int sel;
if ( m_radio )
{
sel = m_radio->GetSelection();
m_sizerRadio->Detach( m_radio );
delete m_radio;
}
else // first time creation, no old selection to preserve
{
sel = -1;
}
unsigned long count;
if ( !m_textNumBtns->GetValue().ToULong(&count) )
{
wxLogWarning("Should have a valid number for number of items.");
// fall back to default
count = DEFAULT_NUM_ENTRIES;
}
unsigned long majorDim;
if ( !m_textMajorDim->GetValue().ToULong(&majorDim) )
{
wxLogWarning("Should have a valid major dimension number.");
// fall back to default
majorDim = DEFAULT_MAJOR_DIM;
}
wxArrayString items;
wxString labelBtn = m_textLabelBtns->GetValue();
for ( size_t n = 0; n < count; n++ )
{
items.push_back(wxString::Format("%s %lu",
labelBtn, (unsigned long)n + 1));
}
int flags = m_chkSpecifyRows->GetValue() ? wxRA_SPECIFY_ROWS
: wxRA_SPECIFY_COLS;
flags |= GetAttrs().m_defaultFlags;
m_radio = new wxRadioBox(this, RadioPage_Radio,
m_textLabel->GetValue(),
wxDefaultPosition, wxDefaultSize,
items,
majorDim,
flags);
if ( sel >= 0 && (size_t)sel < count )
{
m_radio->SetSelection(sel);
}
if ( count > TEST_BUTTON )
{
m_radio->Enable(TEST_BUTTON, m_chkEnableItem->IsChecked());
m_radio->Show(TEST_BUTTON, m_chkShowItem->IsChecked());
}
m_sizerRadio->Add(m_radio, wxSizerFlags(1).Expand());
Layout();
m_chkEnableItem->Enable(count > TEST_BUTTON);
m_chkShowItem->Enable(count > TEST_BUTTON);
}
// ----------------------------------------------------------------------------
// event handlers
// ----------------------------------------------------------------------------
void RadioWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
{
Reset();
CreateRadio();
}
void RadioWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
{
CreateRadio();
}
void RadioWidgetsPage::OnRadioBox(wxCommandEvent& event)
{
int sel = m_radio->GetSelection();
int event_sel = event.GetSelection();
wxUnusedVar(event_sel);
wxLogMessage("Radiobox selection changed, now %d", sel);
wxASSERT_MSG( sel == event_sel,
"selection should be the same in event and radiobox" );
m_textCurSel->SetValue(wxString::Format("%d", sel));
}
void RadioWidgetsPage::OnButtonRecreate(wxCommandEvent& WXUNUSED(event))
{
CreateRadio();
}
void RadioWidgetsPage::OnButtonSetLabel(wxCommandEvent& WXUNUSED(event))
{
m_radio->wxControl::SetLabel(m_textLabel->GetValue());
}
void RadioWidgetsPage::OnButtonSelection(wxCommandEvent& WXUNUSED(event))
{
unsigned long sel;
if ( !m_textSel->GetValue().ToULong(&sel) ||
(sel >= (size_t)m_radio->GetCount()) )
{
wxLogWarning("Invalid number specified as new selection.");
}
else
{
m_radio->SetSelection(sel);
}
}
void RadioWidgetsPage::OnEnableItem(wxCommandEvent& event)
{
m_radio->Enable(TEST_BUTTON, event.IsChecked());
}
void RadioWidgetsPage::OnShowItem(wxCommandEvent& event)
{
m_radio->Show(TEST_BUTTON, event.IsChecked());
}
void RadioWidgetsPage::OnUpdateUIUpdate(wxUpdateUIEvent& event)
{
unsigned long n;
event.Enable( m_textNumBtns->GetValue().ToULong(&n) &&
m_textMajorDim->GetValue().ToULong(&n) );
}
void RadioWidgetsPage::OnUpdateUISelection(wxUpdateUIEvent& event)
{
unsigned long n;
event.Enable( m_textSel->GetValue().ToULong(&n) &&
(n < (size_t)m_radio->GetCount()) );
}
void RadioWidgetsPage::OnUpdateUIReset(wxUpdateUIEvent& event)
{
// only enable it if something is not set to default
bool enable = m_chkSpecifyRows->GetValue();
if ( !enable )
{
unsigned long numEntries;
enable = !m_textNumBtns->GetValue().ToULong(&numEntries) ||
numEntries != DEFAULT_NUM_ENTRIES;
if ( !enable )
{
unsigned long majorDim;
enable = !m_textMajorDim->GetValue().ToULong(&majorDim) ||
majorDim != DEFAULT_MAJOR_DIM;
}
}
event.Enable(enable);
}
void RadioWidgetsPage::OnUpdateUIEnableItem(wxUpdateUIEvent& event)
{
if ( m_radio->GetCount() <= TEST_BUTTON )
return;
event.SetText(m_radio->IsItemEnabled(TEST_BUTTON) ? "Disable &2nd item"
: "Enable &2nd item");
}
void RadioWidgetsPage::OnUpdateUIShowItem(wxUpdateUIEvent& event)
{
if ( m_radio->GetCount() <= TEST_BUTTON )
return;
event.SetText(m_radio->IsItemShown(TEST_BUTTON) ? "Hide 2nd &item"
: "Show 2nd &item");
}
#endif // wxUSE_RADIOBOX