7190821305
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10823 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
461 lines
12 KiB
C++
461 lines
12 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: univ/radiobox.cpp
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// Purpose: wxRadioBox implementation
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 11.09.00
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// RCS-ID: $Id$
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// Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
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// Licence: wxWindows license
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#ifdef __GNUG__
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#pragma implementation "radiobox.h"
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#endif
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if wxUSE_RADIOBOX
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#ifndef WX_PRECOMP
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#include "wx/dcclient.h"
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#include "wx/radiobox.h"
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#include "wx/radiobut.h"
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#include "wx/validate.h"
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#endif
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#include "wx/univ/theme.h"
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#include "wx/univ/renderer.h"
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#include "wx/univ/inphand.h"
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#include "wx/univ/colschem.h"
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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static const int BUTTON_BORDER_X = 2;
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static const int BUTTON_BORDER_Y = 4;
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static const int BOX_BORDER_X = 2;
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static const int BOX_BORDER_Y = 2;
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// ----------------------------------------------------------------------------
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// wxRadioBox event handler
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// ----------------------------------------------------------------------------
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class wxRadioHookHandler : public wxEvtHandler
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{
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public:
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wxRadioHookHandler(wxRadioBox *radio) { m_radio = radio; }
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virtual bool ProcessEvent(wxEvent& event)
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{
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// we intercept the command events from radio buttons
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if ( event.GetEventType() == wxEVT_COMMAND_RADIOBUTTON_SELECTED )
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{
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m_radio->OnRadioButton(event);
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}
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else if ( event.GetEventType() == wxEVT_KEY_DOWN )
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{
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if ( m_radio->OnKeyDown((wxKeyEvent &)event) )
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{
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return TRUE;
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}
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}
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// just pass it on
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return GetNextHandler()->ProcessEvent(event);
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}
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private:
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wxRadioBox *m_radio;
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};
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// ============================================================================
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// implementation
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// ============================================================================
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IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
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// ----------------------------------------------------------------------------
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// wxRadioBox creation
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// ----------------------------------------------------------------------------
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void wxRadioBox::Init()
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{
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m_selection = -1;
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m_majorDim = 0;
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}
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bool wxRadioBox::Create(wxWindow *parent,
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wxWindowID id,
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const wxString& title,
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const wxPoint& pos,
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const wxSize& size,
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int n,
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const wxString *choices,
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int majorDim,
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long style,
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const wxValidator& val,
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const wxString& name)
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{
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// for compatibility with the other ports which don't handle (yet?)
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// wxRA_LEFTTORIGHT and wxRA_TOPTOBOTTOM flags, we add them ourselves if
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// not specified
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if ( !(style & (wxRA_LEFTTORIGHT | wxRA_TOPTOBOTTOM)) )
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{
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// horizontal radiobox use left to right layout
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if ( style & wxRA_HORIZONTAL )
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{
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style |= wxRA_LEFTTORIGHT;
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}
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else if ( style & wxRA_VERTICAL )
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{
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style |= wxRA_TOPTOBOTTOM;
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}
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else
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{
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wxFAIL_MSG( _T("you must specify wxRA_XXX style!") );
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// use default
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style = wxRA_HORIZONTAL | wxRA_LEFTTORIGHT;
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}
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}
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if ( !wxStaticBox::Create(parent, id, title, pos, size, style, name) )
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return FALSE;
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#if wxUSE_VALIDATORS
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SetValidator(val);
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#endif // wxUSE_VALIDATORS
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Append(n, choices);
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// majorDim default value is 0 which means make one row/column
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SetMajorDim(majorDim == 0 ? n : majorDim);
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if ( size == wxDefaultSize )
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{
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SetClientSize(DoGetBestClientSize());
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}
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// radiobox should already have selection so select at least one item
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SetSelection(0);
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return TRUE;
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}
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wxRadioBox::~wxRadioBox()
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{
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// remove the event handlers we pushed on them from all buttons and delete
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// the buttons themselves: this must be done as the user code expects them
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// to disappear now and not some time later when they will be deleted by
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// our (common) parent
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size_t count = m_buttons.GetCount();
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for ( size_t n = 0; n < count; n++ )
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{
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m_buttons[n]->PopEventHandler(TRUE /* delete it */);
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delete m_buttons[n];
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}
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}
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// ----------------------------------------------------------------------------
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// wxRadioBox init
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// ----------------------------------------------------------------------------
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void wxRadioBox::SetMajorDim(int majorDim)
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{
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wxCHECK_RET( majorDim != 0, _T("major radiobox dimension can't be 0") );
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m_majorDim = majorDim;
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int minorDim = (GetCount() + m_majorDim - 1) / m_majorDim;
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if ( GetWindowStyle() & wxRA_SPECIFY_COLS )
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{
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m_numCols = majorDim;
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m_numRows = minorDim;
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}
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else // wxRA_SPECIFY_ROWS
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{
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m_numCols = minorDim;
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m_numRows = majorDim;
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}
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}
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void wxRadioBox::Append(int count, const wxString *choices)
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{
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if ( !count )
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return;
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wxWindow *parent = GetParent();
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m_buttons.Alloc(count);
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for ( int n = 0; n < count; n++ )
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{
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// make the first button in the box the start of new group by giving it
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// wxRB_GROUP style
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wxRadioButton *btn = new wxRadioButton(parent, -1, choices[n],
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wxDefaultPosition,
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wxDefaultSize,
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n == 0 ? wxRB_GROUP : 0);
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// we want to get the events from the buttons to translate it into
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btn->PushEventHandler(new wxRadioHookHandler(this));
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m_buttons.Add(btn);
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}
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}
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// ----------------------------------------------------------------------------
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// selection
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// ----------------------------------------------------------------------------
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void wxRadioBox::SetSelection(int n)
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{
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wxCHECK_RET( IsValid(n), _T("invalid index in wxRadioBox::SetSelection") );
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m_selection = n;
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wxRadioButton *btn = m_buttons[n];
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// the selected button is always focused in the radiobox
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btn->SetFocus();
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// this will also unselect the previously selected button in our group
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btn->SetValue(TRUE);
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}
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int wxRadioBox::GetSelection() const
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{
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return m_selection;
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}
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void wxRadioBox::SendRadioEvent()
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{
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wxCHECK_RET( m_selection != -1, _T("no active radio button") );
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wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, GetId());
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InitCommandEvent(event);
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event.SetInt(m_selection);
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event.SetString(GetString(m_selection));
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Command(event);
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}
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void wxRadioBox::OnRadioButton(wxEvent& event)
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{
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int n = m_buttons.Index((wxRadioButton *)event.GetEventObject());
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wxCHECK_RET( n != wxNOT_FOUND, _T("click from alien radio button") );
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m_selection = n;
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SendRadioEvent();
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}
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// ----------------------------------------------------------------------------
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// methods forwarded to the buttons
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// ----------------------------------------------------------------------------
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wxString wxRadioBox::GetString(int n) const
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{
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wxCHECK_MSG( IsValid(n), _T(""),
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_T("invalid index in wxRadioBox::GetString") );
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return m_buttons[n]->GetLabel();
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}
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void wxRadioBox::SetString(int n, const wxString& label)
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{
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wxCHECK_RET( IsValid(n), _T("invalid index in wxRadioBox::SetString") );
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m_buttons[n]->SetLabel(label);
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}
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void wxRadioBox::Enable(int n, bool enable)
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{
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wxCHECK_RET( IsValid(n), _T("invalid index in wxRadioBox::Enable") );
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m_buttons[n]->Enable(enable);
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}
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void wxRadioBox::Show(int n, bool show)
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{
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wxCHECK_RET( IsValid(n), _T("invalid index in wxRadioBox::Show") );
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m_buttons[n]->Show(show);
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}
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// ----------------------------------------------------------------------------
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// methods forwarded to the static box
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// ----------------------------------------------------------------------------
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bool wxRadioBox::Enable(bool enable)
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{
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return wxStaticBox::Enable(enable);
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}
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bool wxRadioBox::Show(bool show)
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{
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return wxStaticBox::Show(show);
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}
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wxString wxRadioBox::GetLabel() const
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{
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return wxStaticBox::GetLabel();
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}
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void wxRadioBox::SetLabel(const wxString& label)
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{
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wxStaticBox::SetLabel(label);
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}
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// ----------------------------------------------------------------------------
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// buttons positioning
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// ----------------------------------------------------------------------------
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wxSize wxRadioBox::GetMaxButtonSize() const
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{
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int widthMax, heightMax, width, height;
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widthMax = heightMax = 0;
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int count = GetCount();
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for ( int n = 0; n < count; n++ )
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{
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m_buttons[n]->GetBestSize(&width, &height);
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if ( width > widthMax )
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widthMax = width;
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if ( height > heightMax )
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heightMax = height;
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}
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return wxSize(widthMax + BUTTON_BORDER_X, heightMax + BUTTON_BORDER_Y);
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}
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wxSize wxRadioBox::DoGetBestClientSize() const
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{
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wxSize sizeBtn = GetMaxButtonSize();
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sizeBtn.x *= m_numCols;
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sizeBtn.y *= m_numRows;
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// add a border around all buttons
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sizeBtn.x += 2*BOX_BORDER_X;
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sizeBtn.y += 2*BOX_BORDER_Y;
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// account for the area taken by static box
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wxRect rect = GetBorderGeometry();
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sizeBtn.x += rect.x + rect.width;
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sizeBtn.y += rect.y + rect.height;
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return sizeBtn;
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}
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void wxRadioBox::DoMoveWindow(int x0, int y0, int width, int height)
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{
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wxStaticBox::DoMoveWindow(x0, y0, width, height);
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wxSize sizeBtn = GetMaxButtonSize();
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wxPoint ptOrigin = GetBoxAreaOrigin();
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x0 += ptOrigin.x + BOX_BORDER_X;
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y0 += ptOrigin.y + BOX_BORDER_Y;
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int x = x0,
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y = y0;
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int count = GetCount();
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for ( int n = 0; n < count; n++ )
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{
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m_buttons[n]->SetSize(x, y, sizeBtn.x, sizeBtn.y);
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if ( GetWindowStyle() & wxRA_TOPTOBOTTOM )
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{
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// from top to bottom
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if ( (n + 1) % m_numRows )
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{
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// continue in this column
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y += sizeBtn.y;
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}
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else
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{
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// start a new column
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x += sizeBtn.x;
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y = y0;
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}
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}
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else // wxRA_LEFTTORIGHT: mirror the code above
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{
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// from left to right
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if ( (n + 1) % m_numCols )
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{
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// continue in this row
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x += sizeBtn.x;
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}
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else
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{
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// start a new row
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y += sizeBtn.y;
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x = x0;
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}
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}
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}
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}
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// ----------------------------------------------------------------------------
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// keyboard navigation
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// ----------------------------------------------------------------------------
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bool wxRadioBox::OnKeyDown(wxKeyEvent& event)
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{
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wxDirection dir;
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switch ( event.GetKeyCode() )
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{
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case WXK_UP:
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dir = wxUP;
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break;
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case WXK_LEFT:
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dir = wxLEFT;
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break;
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case WXK_DOWN:
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dir = wxDOWN;
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break;
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case WXK_RIGHT:
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dir = wxRIGHT;
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break;
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default:
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return FALSE;
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}
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int selOld = GetSelection();
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int selNew = GetNextItem(selOld, dir, GetWindowStyle());
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if ( selNew != selOld )
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{
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SetSelection(selNew);
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// emulate the button click
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SendRadioEvent();
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}
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return TRUE;
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}
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#endif // wxUSE_RADIOBOX
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