/////////////////////////////////////////////////////////////////////////////
// Name:        radiobox.cpp
// Purpose:     wxRadioBox
// Author:      Stefan Csomor
// Modified by: JS Lair (99/11/15) first implementation
// Created:     1998-01-01
// RCS-ID:      $Id: radiobox.cpp,v 1.4 2004/08/18 15:37:00 DS Exp $
// Copyright:   (c) Stefan Csomor
// Licence:       wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "radioboxbase.h"
#pragma implementation "radiobox.h"
#endif

//-------------------------------------------------------------------------------------
//         headers
//-------------------------------------------------------------------------------------

#include "wx/defs.h"
#include "wx/arrstr.h"

#include "wx/radiobox.h"
#include "wx/radiobut.h"
#include "wx/mac/uma.h"

#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
#endif

//-------------------------------------------------------------------------------------
//         ¥ wxRadioBox()
//-------------------------------------------------------------------------------------
// Default constructor
BEGIN_EVENT_TABLE(wxRadioBox, wxControl)
EVT_RADIOBUTTON( -1 , wxRadioBox::OnRadioButton )
END_EVENT_TABLE()

void wxRadioBox::OnRadioButton( wxCommandEvent &outer )
{
    if ( outer.IsChecked() )
    {
        wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId);
        int i = GetSelection() ;
        event.SetInt( i );
        event.SetString( GetString( i ) );
        event.SetEventObject( this );
        ProcessCommand(event);
    }
}

wxRadioBox::wxRadioBox()
{
    m_noItems = 0;
    m_noRowsOrCols = 0;
    m_majorDim = 0 ;
    m_radioButtonCycle = NULL;
}

//-------------------------------------------------------------------------------------
//         ¥ wxRadioBox(wxWindow*, wxWindowID, const wxString&, const wxPoint&, 
//                        const wxSize&, int, const wxString[], int, long, 
//                        const wxValidator&, const wxString&)
//-------------------------------------------------------------------------------------
// Contructor, creating and showing a radiobox
//
// inline defined
//

//-------------------------------------------------------------------------------------
//         ¥ ~wxRadioBox
//-------------------------------------------------------------------------------------
// Destructor, destroying the radiobox item

wxRadioBox::~wxRadioBox()
{
    m_isBeingDeleted = TRUE;

    wxRadioButton *next,*current;
    
    current=m_radioButtonCycle->NextInCycle();
    next=current->NextInCycle();
    while (current!=m_radioButtonCycle) {
        delete current;
        current=next;
        next=current->NextInCycle();
    }
    delete current;    
}

//-------------------------------------------------------------------------------------
//         ¥ Create
//-------------------------------------------------------------------------------------
// Create the radiobox for two-step construction

bool wxRadioBox::Create(wxWindow *parent, wxWindowID id, const wxString& label,
                        const wxPoint& pos, const wxSize& size,
                        const wxArrayString& choices,
                        int majorDim, long style,
                        const wxValidator& val, const wxString& name)
{
    wxCArrayString chs(choices);

    return Create(parent, id, label, pos, size, chs.GetCount(),
                  chs.GetStrings(), majorDim, style, val, name);
}

bool wxRadioBox::Create(wxWindow *parent, wxWindowID id, const wxString& label,
                        const wxPoint& pos, const wxSize& size,
                        int n, const wxString choices[],
                        int majorDim, long style,
                        const wxValidator& val, const wxString& name)
{
    if ( !wxControl::Create(parent, id, pos, size, style, val, name) )
        return false;

    int i;
    
    m_noItems = n;
    m_noRowsOrCols = majorDim;
    m_radioButtonCycle = NULL;
    
    if (majorDim==0)
        m_majorDim = n ;
    else
        m_majorDim = majorDim ;
    
    
    Rect bounds ;
    Str255 title ;
    
    MacPreControlCreate( parent , id ,  wxStripMenuCodes(label) , pos , size ,style, val , name , &bounds , title ) ;
    
    m_macControl = (WXWidget) ::NewControl( MAC_WXHWND(parent->MacGetRootWindow()) , &bounds , title , false , 0 , 0 , 1, 
        kControlGroupBoxTextTitleProc , (long) this ) ;
    
    for (i = 0; i < n; i++)
    {
        wxRadioButton *radBtn = new wxRadioButton
                                    (
                                        this,
                                        wxID_ANY,
                                        wxStripMenuCodes(choices[i]),
                                        wxPoint(5,20*i+10),
                                        wxDefaultSize,
                                        i == 0 ? wxRB_GROUP : 0
                                    );
        if ( i == 0 )
            m_radioButtonCycle = radBtn ;
        //        m_radioButtonCycle=radBtn->AddInCycle(m_radioButtonCycle);
    }
    
    SetSelection(0);
    MacPostControlCreate() ;
    
    return TRUE;
}


//-------------------------------------------------------------------------------------
//         ¥ Enable(bool)
//-------------------------------------------------------------------------------------
// Enables or disables the entire radiobox

bool wxRadioBox::Enable(bool enable)
{
    int i;
    wxRadioButton *current;
    
    if (!wxControl::Enable(enable))
        return false;
    
    current = m_radioButtonCycle;
    for (i = 0; i < m_noItems; i++) {
        current->Enable(enable);
        current = current->NextInCycle();
    }
    return true;
}

//-------------------------------------------------------------------------------------
//         ¥ Enable(int, bool)
//-------------------------------------------------------------------------------------
// Enables or disables an given button

void wxRadioBox::Enable(int item, bool enable)
{
    int i;
    wxRadioButton *current;
    
    if ((item < 0) || (item >= m_noItems))
        return;
    
    i = 0;
    current = m_radioButtonCycle;
    while (i != item) {
        i++;
        current = current->NextInCycle();
    }
    current->Enable(enable);
}

//-------------------------------------------------------------------------------------
//         ¥ GetLabel()
//-------------------------------------------------------------------------------------
// Returns the radiobox label

wxString wxRadioBox::GetLabel() const
{
    return wxControl::GetLabel();
}

//-------------------------------------------------------------------------------------
//         ¥ GetLabel(int)
//-------------------------------------------------------------------------------------
// Returns the label for the given button

wxString wxRadioBox::GetString(int item) const
{
    int i;
    wxRadioButton *current;
    
    if ((item < 0) || (item >= m_noItems))
        return wxEmptyString;
    
    i = 0;
    current = m_radioButtonCycle;
    while (i != item) {
        i++;
        current = current->NextInCycle();
    }
    return current->GetLabel();
}

//-------------------------------------------------------------------------------------
//         ¥ GetSelection
//-------------------------------------------------------------------------------------
// Returns the zero-based position of the selected button

int wxRadioBox::GetSelection() const
{
    int i;
    wxRadioButton *current;
    
    i=0;
    current=m_radioButtonCycle;
    while (!current->GetValue()) {
        i++;
        current=current->NextInCycle();
    }
    
    return i;
}

//-------------------------------------------------------------------------------------
//         ¥ Number
//-------------------------------------------------------------------------------------
// Returns the number of buttons in the radiobox
//
// inline defined
//

//-------------------------------------------------------------------------------------
//         ¥ SetLabel(const wxString&)
//-------------------------------------------------------------------------------------
// Sets the radiobox label

void wxRadioBox::SetLabel(const wxString& label)
{
    return wxControl::SetLabel(label);
}

//-------------------------------------------------------------------------------------
//         ¥ SetLabel(int, const wxString&)
//-------------------------------------------------------------------------------------
// Sets the label of a given button

void wxRadioBox::SetString(int item,const wxString& label)
{
       int i;
    wxRadioButton *current;
    
    if ((item < 0) || (item >= m_noItems))
        return;
    i=0;
    current=m_radioButtonCycle;
    while (i!=item) {
        i++;
        current=current->NextInCycle();
    }
    return current->SetLabel(label);
}

//-------------------------------------------------------------------------------------
//         ¥ SetSelection
//-------------------------------------------------------------------------------------
// Sets a button by passing the desired position. This does not cause 
// wxEVT_COMMAND_RADIOBOX_SELECTED event to get emitted

void wxRadioBox::SetSelection(int item)
{
    int i;
    wxRadioButton *current;
    
    if ((item < 0) || (item >= m_noItems))
        return;
    i=0;
    current=m_radioButtonCycle;
    while (i!=item) {
        i++;
        current=current->NextInCycle();
    }
    current->SetValue(true);
    
}

//-------------------------------------------------------------------------------------
//         ¥ Show(bool)
//-------------------------------------------------------------------------------------
// Shows or hides the entire radiobox 

bool wxRadioBox::Show(bool show)
{
    int i;
    wxRadioButton *current;
    
    wxControl::Show(show);
    
    current=m_radioButtonCycle;
       for (i=0;i<m_noItems;i++) {
        current->Show(show);
        current=current->NextInCycle();
    }
    return true;
}

//-------------------------------------------------------------------------------------
//         ¥ Show(int, bool)
//-------------------------------------------------------------------------------------
// Shows or hides the given button 

void wxRadioBox::Show(int item, bool show)
{
       int i;
    wxRadioButton *current;
    
    if ((item < 0) || (item >= m_noItems))
        return;
    i=0;
    current=m_radioButtonCycle;
    while (i!=item) {
        i++;
        current=current->NextInCycle();
    }
    current->Show(show);
}

//-------------------------------------------------------------------------------------
//         ¥ Command
//-------------------------------------------------------------------------------------
// Simulates the effect of the user issuing a command to the item

void wxRadioBox::Command (wxCommandEvent & event)
{
    SetSelection (event.GetInt());
    ProcessCommand (event);
}

//-------------------------------------------------------------------------------------
//         ¥ SetFocus
//-------------------------------------------------------------------------------------
// Sets the selected button to receive keyboard input

void wxRadioBox::SetFocus()
{
    int i;
    wxRadioButton *current;
    
    i=0;
    current=m_radioButtonCycle;
    while (!current->GetValue()) {
        i++;
        current=current->NextInCycle();
    }
    current->SetFocus();
}


//-------------------------------------------------------------------------------------
//         ¥ DoSetSize
//-------------------------------------------------------------------------------------
// Simulates the effect of the user issuing a command to the item

#define RADIO_SIZE 20

void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
{
    int i;
    wxRadioButton *current;
    
    // define the position
    
    int x_current, y_current;
    int x_offset,y_offset;
    int widthOld, heightOld;
    GetSize(&widthOld, &heightOld);
    
    x_offset = x;
    y_offset = y;
    GetPosition(&x_current, &y_current);
    if ((x == -1) && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
        x_offset = x_current;
    if ((y == -1)&& !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
        y_offset = y_current;
    
    // define size
    
    int charWidth,charHeight;
    int maxWidth,maxHeight;
    int eachWidth[128],eachHeight[128];
    int totWidth,totHeight;
    
    SetFont(GetParent()->GetFont());
    GetTextExtent(wxT("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"), &charWidth, &charHeight);
    charWidth/=52;
    
    maxWidth=-1;
    maxHeight=-1;
    for (i = 0 ; i < m_noItems; i++)
    {
        GetTextExtent(GetString(i), &eachWidth[i], &eachHeight[i]);
        eachWidth[i] = (int)(eachWidth[i] + RADIO_SIZE);
        eachHeight[i] = (int)((3*eachHeight[i])/2);
        if (maxWidth<eachWidth[i]) maxWidth = eachWidth[i];
        if (maxHeight<eachHeight[i]) maxHeight = eachHeight[i];
          }
    
    totHeight = GetRowCount() * (maxHeight + charHeight/2) + charHeight ;
    totWidth  = GetColumnCount() * (maxWidth + charWidth) + charWidth;
    
    // only change our width/height if asked for
    if ( width == -1 )
    {
        if ( sizeFlags & wxSIZE_AUTO_WIDTH )
            width = totWidth ;
        else
            width = widthOld;
    }
    
    if ( height == -1 )
    {
        if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
            height = totHeight ;
        else
            height = heightOld;
    }
    
    wxControl::DoSetSize(x_offset,y_offset,width,height,wxSIZE_AUTO);
    
    // arrange radiobuttons
    
    int x_start,y_start;
    
    
    x_start = charWidth;
    y_start = 15 ;
    if ( UMAGetSystemVersion() >= 0x1030 )
    {
		//need to add a few more pixels for the top border on panther
		y_start = y_start + 5; //how many exactly should this be to meet the HIG?
    }
    x_offset = x_start;
    y_offset = y_start;
    
    current=m_radioButtonCycle;  
    for ( i = 0 ; i < m_noItems; i++)
    {
        if (i&&((i%m_majorDim)==0)) // not to do for the zero button!
        {
            if (m_windowStyle & wxRA_VERTICAL)
            {
                x_offset += maxWidth + charWidth;
                y_offset = y_start;
            }
            else
            {
                x_offset = x_start;
                y_offset += maxHeight ; /*+ charHeight/2;*/
            }
        }
        
        current->SetSize(x_offset,y_offset,eachWidth[i],eachHeight[i]);
        current=current->NextInCycle();
        
        if (m_windowStyle & wxRA_SPECIFY_ROWS)
            y_offset += maxHeight ; /*+ charHeight/2;*/
        else
            x_offset += maxWidth + charWidth;
    }
}

wxSize wxRadioBox::DoGetBestSize() const
{
    int charWidth, charHeight;
    int maxWidth, maxHeight;
    int eachWidth, eachHeight;
    int totWidth, totHeight;
    
    wxFont font = GetParent()->GetFont();
    GetTextExtent(wxT("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"),
        &charWidth, &charHeight, NULL, NULL, &font);
    charWidth /= 52;
    
    maxWidth = -1;
    maxHeight = -1;
    
    for (int i = 0 ; i < m_noItems; i++)
    {
        GetTextExtent(GetString(i), &eachWidth, &eachHeight);
        eachWidth  = (int)(eachWidth + RADIO_SIZE) ;
        eachHeight = (int)((3 * eachHeight) / 2);
        if (maxWidth < eachWidth)     maxWidth = eachWidth;
        if (maxHeight < eachHeight)   maxHeight = eachHeight;
    }
    
    totHeight = GetRowCount() * (maxHeight + charHeight/2) + charHeight ;
    totWidth  = GetColumnCount() * (maxWidth + charWidth) + charWidth;
    
    if ( UMAGetSystemVersion() >= 0x1030 )
    {
        //need to add a few more pixels for the static boxborder on panther
        totHeight = totHeight + 10; //how many exactly should this be to meet the HIG?
    }
    // handle radio box title as well
    GetTextExtent(GetTitle(), &eachWidth, NULL);
    eachWidth  = (int)(eachWidth + RADIO_SIZE) + 3 * charWidth ;
    if (totWidth < eachWidth)     
        totWidth = eachWidth;
    
    return wxSize(totWidth, totHeight);
}
//-------------------------------------------------------------------------------------
//         ¥ GetNumVer
//-------------------------------------------------------------------------------------
// return the number of buttons in the vertical direction

int wxRadioBox::GetRowCount() const
{
    if ( m_windowStyle & wxRA_SPECIFY_ROWS )
    {
        return m_majorDim;
    }
    else
    {
        return (m_noItems + m_majorDim - 1)/m_majorDim;
    }
}

//-------------------------------------------------------------------------------------
//         ¥ GetNumHor
//-------------------------------------------------------------------------------------
// return the number of buttons in the horizontal direction

int wxRadioBox::GetColumnCount() const
{
    if ( m_windowStyle & wxRA_SPECIFY_ROWS )
    {
        return (m_noItems + m_majorDim - 1)/m_majorDim;
    }
    else
    {
        return m_majorDim;
    }
}





