152 lines
4.3 KiB
C++
152 lines
4.3 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/qt/radiobut.cpp
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// Author: Peter Most
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// Copyright: (c) Peter Most
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#include "wx/radiobut.h"
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#include "wx/qt/private/converter.h"
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#include "wx/qt/private/winevent.h"
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#include <QtWidgets/QRadioButton>
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#include <QtWidgets/QButtonGroup>
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namespace
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{
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// Tiny helper applying a safe cast to return the handle of wxRadioButton as
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// its actual type.
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inline
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QRadioButton* QtGetRadioButton(wxRadioButton* radioBtn)
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{
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return static_cast<QRadioButton*>(radioBtn->GetHandle());
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}
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void QtStartNewGroup(QRadioButton* qtRadioButton)
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{
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// Note that the QButtonGroup created here will be deallocated when its
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// parent // QRadioButton is destroyed.
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QButtonGroup* qtButtonGroup = new QButtonGroup(qtRadioButton);
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qtButtonGroup->addButton(qtRadioButton);
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}
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bool QtTryJoiningExistingGroup(wxRadioButton* radioBtnThis)
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{
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for ( wxWindow* previous = radioBtnThis->GetPrevSibling();
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previous;
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previous = previous->GetPrevSibling() )
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{
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if ( wxRadioButton* radioBtn = wxDynamicCast(previous, wxRadioButton) )
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{
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// We should never join the exclusive group of wxRB_SINGLE button.
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if ( !radioBtn->HasFlag(wxRB_SINGLE) )
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{
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if ( QButtonGroup *qtGroup = QtGetRadioButton(radioBtn)->group() )
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{
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qtGroup->addButton(QtGetRadioButton(radioBtnThis));
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return true;
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}
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}
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break;
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}
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}
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return false;
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}
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} // anonymous namespace
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class wxQtRadioButton : public wxQtEventSignalHandler< QRadioButton, wxRadioButton >
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{
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public:
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wxQtRadioButton( wxWindow *parent, wxRadioButton *handler ) :
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wxQtEventSignalHandler< QRadioButton, wxRadioButton >(parent, handler)
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{
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connect(this, &QRadioButton::clicked, this, &wxQtRadioButton::OnClicked);
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}
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void OnClicked(bool checked)
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{
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wxRadioButton* handler = GetHandler();
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if ( handler == NULL )
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return;
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wxCommandEvent event(wxEVT_RADIOBUTTON, handler->GetId());
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event.SetInt(checked ? 1 : 0);
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EmitEvent(event);
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}
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};
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wxRadioButton::wxRadioButton() :
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m_qtRadioButton(NULL)
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{
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}
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wxRadioButton::wxRadioButton( wxWindow *parent,
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wxWindowID id,
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const wxString& label,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxValidator& validator,
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const wxString& name)
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{
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Create( parent, id, label, pos, size, style, validator, name );
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}
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bool wxRadioButton::Create( wxWindow *parent,
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wxWindowID id,
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const wxString& label,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxValidator& validator,
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const wxString& name)
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{
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m_qtRadioButton = new wxQtRadioButton( parent, this );
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m_qtRadioButton->setText( wxQtConvertString( label ));
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if ( !QtCreateControl(parent, id, pos, size, style, validator, name) )
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return false;
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// Check if we need to create a new button group: this must be done when
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// explicitly requested to do so (wxRB_GROUP) but also for wxRB_SINGLE
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// buttons to prevent them implicitly becoming part of an existing group.
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if ( (style & wxRB_GROUP) || (style & wxRB_SINGLE) )
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{
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QtStartNewGroup(m_qtRadioButton);
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}
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else
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{
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// Otherwise try to join an already existing group. Currently we don't
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// do anything if joining it fails, i.e. if there is no current group
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// yet, because the radio buttons not explicitly associated with some
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// group still work as if they were part of one, so we just ignore the
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// return value of this function.
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QtTryJoiningExistingGroup(this);
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}
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return true;
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}
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void wxRadioButton::SetValue(bool value)
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{
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m_qtRadioButton->setChecked( value );
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}
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bool wxRadioButton::GetValue() const
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{
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return m_qtRadioButton->isChecked();
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}
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QWidget *wxRadioButton::GetHandle() const
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{
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return m_qtRadioButton;
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}
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