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dolphin/Externals/wxWidgets3/src/msw/radiobox.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: src/msw/radiobox.cpp
// Purpose: wxRadioBox implementation
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ===========================================================================
// declarations
// ===========================================================================
// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_RADIOBOX
#include "wx/radiobox.h"
#ifndef WX_PRECOMP
#include "wx/hashmap.h"
#include "wx/bitmap.h"
#include "wx/brush.h"
#include "wx/settings.h"
#include "wx/log.h"
#endif
#include "wx/msw/subwin.h"
#if wxUSE_TOOLTIPS
#include "wx/tooltip.h"
#endif // wxUSE_TOOLTIPS
// TODO: wxCONSTRUCTOR
#if 0 // wxUSE_EXTENDED_RTTI
WX_DEFINE_FLAGS( wxRadioBoxStyle )
wxBEGIN_FLAGS( wxRadioBoxStyle )
// new style border flags, we put them first to
// use them for streaming out
wxFLAGS_MEMBER(wxBORDER_SIMPLE)
wxFLAGS_MEMBER(wxBORDER_SUNKEN)
wxFLAGS_MEMBER(wxBORDER_DOUBLE)
wxFLAGS_MEMBER(wxBORDER_RAISED)
wxFLAGS_MEMBER(wxBORDER_STATIC)
wxFLAGS_MEMBER(wxBORDER_NONE)
// old style border flags
wxFLAGS_MEMBER(wxSIMPLE_BORDER)
wxFLAGS_MEMBER(wxSUNKEN_BORDER)
wxFLAGS_MEMBER(wxDOUBLE_BORDER)
wxFLAGS_MEMBER(wxRAISED_BORDER)
wxFLAGS_MEMBER(wxSTATIC_BORDER)
wxFLAGS_MEMBER(wxBORDER)
// standard window styles
wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
wxFLAGS_MEMBER(wxCLIP_CHILDREN)
wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
wxFLAGS_MEMBER(wxWANTS_CHARS)
wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
wxFLAGS_MEMBER(wxVSCROLL)
wxFLAGS_MEMBER(wxHSCROLL)
wxFLAGS_MEMBER(wxRA_SPECIFY_COLS)
wxFLAGS_MEMBER(wxRA_SPECIFY_ROWS)
wxEND_FLAGS( wxRadioBoxStyle )
IMPLEMENT_DYNAMIC_CLASS_XTI(wxRadioBox, wxControl,"wx/radiobox.h")
wxBEGIN_PROPERTIES_TABLE(wxRadioBox)
wxEVENT_PROPERTY( Select , wxEVT_RADIOBOX , wxCommandEvent )
wxPROPERTY_FLAGS( WindowStyle , wxRadioBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
wxEND_PROPERTIES_TABLE()
#else
IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
#endif
/*
selection
content
label
dimension
item
*/
// ---------------------------------------------------------------------------
// private functions
// ---------------------------------------------------------------------------
// wnd proc for radio buttons
LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hWnd,
UINT message,
WPARAM wParam,
LPARAM lParam);
// ---------------------------------------------------------------------------
// global vars
// ---------------------------------------------------------------------------
namespace
{
// the pointer to standard radio button wnd proc
WXFARPROC s_wndprocRadioBtn = (WXFARPROC)NULL;
// Hash allowing to find wxRadioBox containing the given radio button by its
// HWND. This is used by (subclassed) radio button window proc to find the
// radio box it belongs to.
WX_DECLARE_HASH_MAP(HWND, wxRadioBox *,
wxPointerHash, wxPointerEqual,
RadioBoxFromButton);
RadioBoxFromButton gs_boxFromButton;
} // anonymous namespace
// ===========================================================================
// implementation
// ===========================================================================
/* static */
wxRadioBox* wxRadioBox::GetFromRadioButtonHWND(WXHWND hwnd)
{
const RadioBoxFromButton::const_iterator it = gs_boxFromButton.find(hwnd);
return it == gs_boxFromButton.end() ? NULL : it->second;
}
// ---------------------------------------------------------------------------
// wxRadioBox creation
// ---------------------------------------------------------------------------
// Radio box item
void wxRadioBox::Init()
{
m_selectedButton = wxNOT_FOUND;
m_radioButtons = NULL;
m_dummyHwnd = NULL;
m_radioWidth = NULL;
m_radioHeight = NULL;
}
bool wxRadioBox::Create(wxWindow *parent,
wxWindowID id,
const wxString& title,
const wxPoint& pos,
const wxSize& size,
int n,
const wxString choices[],
int majorDim,
long style,
const wxValidator& val,
const wxString& name)
{
// common initialization
if ( !wxStaticBox::Create(parent, id, title, pos, size, style, name) )
return false;
// the code elsewhere in this file supposes that either wxRA_SPECIFY_COLS
// or wxRA_SPECIFY_ROWS is set, ensure that this is indeed the case
if ( !(style & (wxRA_SPECIFY_ROWS | wxRA_SPECIFY_COLS)) )
style |= wxRA_SPECIFY_COLS;
#if wxUSE_VALIDATORS
SetValidator(val);
#else
wxUnusedVar(val);
#endif // wxUSE_VALIDATORS/!wxUSE_VALIDATORS
// We need an extra one to keep track of the 'dummy' item we
// create to end the radio group, so it will be destroyed and
// it's id will be released. But we want it separate from the
// other buttons since the wxSubwindows will operate on it as
// well and we just want to ignore it until destroying it.
// For instance, we don't want the bounding box of the radio
// buttons to include the dummy button
m_radioButtons = new wxSubwindows(n);
m_radioWidth = new int[n];
m_radioHeight = new int[n];
for ( int i = 0; i < n; i++ )
{
m_radioWidth[i] =
m_radioHeight[i] = wxDefaultCoord;
long styleBtn = BS_AUTORADIOBUTTON | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
if ( i == 0 )
styleBtn |= WS_GROUP;
wxWindowIDRef subid = NewControlId();
HWND hwndBtn = ::CreateWindow(wxT("BUTTON"),
choices[i].t_str(),
styleBtn,
0, 0, 0, 0, // will be set in SetSize()
GetHwndOf(parent),
(HMENU)wxUIntToPtr(subid.GetValue()),
wxGetInstance(),
NULL);
if ( !hwndBtn )
{
wxLogLastError(wxT("CreateWindow(radio btn)"));
return false;
}
// Keep track of the subwindow
m_radioButtons->Set(i, hwndBtn, subid);
SubclassRadioButton((WXHWND)hwndBtn);
// Also, make it a subcontrol of this control
m_subControls.Add(subid);
}
// Create a dummy radio control to end the group.
m_dummyId = NewControlId();
m_dummyHwnd = (WXHWND)::CreateWindow(wxT("BUTTON"),
wxEmptyString,
WS_GROUP | BS_AUTORADIOBUTTON | WS_CHILD,
0, 0, 0, 0, GetHwndOf(parent),
(HMENU)wxUIntToPtr(m_dummyId.GetValue()),
wxGetInstance(), NULL);
m_radioButtons->SetFont(GetFont());
#ifdef __WXWINCE__
// Set the z-order correctly
SetWindowPos(GetHwnd(), HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE);
#endif
SetMajorDim(majorDim == 0 ? n : majorDim, style);
SetSelection(0);
SetSize(pos.x, pos.y, size.x, size.y);
// Now that we have items determine what is the best size and set it.
SetInitialSize(size);
// And update all the buttons positions to match it.
const wxSize actualSize = GetSize();
PositionAllButtons(pos.x, pos.y, actualSize.x, actualSize.y);
// The base wxStaticBox class never accepts focus, but we do because giving
// focus to a wxRadioBox actually gives it to one of its buttons, which are
// not visible at wx level and hence are not taken into account by the
// logic in wxControlContainer code.
m_container.EnableSelfFocus();
return true;
}
bool wxRadioBox::Create(wxWindow *parent,
wxWindowID id,
const wxString& title,
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, title, pos, size, chs.GetCount(),
chs.GetStrings(), majorDim, style, val, name);
}
wxRadioBox::~wxRadioBox()
{
SendDestroyEvent();
// Unsubclass all the radio buttons and remove their soon-to-be-invalid
// HWNDs from the global map. Notice that we need to unsubclass because
// otherwise we'd need the entries in gs_boxFromButton for the buttons
// being deleted to handle the messages generated during their destruction.
for ( size_t item = 0; item < m_radioButtons->GetCount(); item++ )
{
HWND hwnd = m_radioButtons->Get(item);
wxSetWindowProc(hwnd, reinterpret_cast<WNDPROC>(s_wndprocRadioBtn));
gs_boxFromButton.erase(hwnd);
}
delete m_radioButtons;
if ( m_dummyHwnd )
DestroyWindow((HWND)m_dummyHwnd);
delete[] m_radioWidth;
delete[] m_radioHeight;
}
// NB: if this code is changed, wxGetWindowForHWND() which relies on having the
// radiobox pointer in GWL_USERDATA for radio buttons must be updated too!
void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
{
HWND hwndBtn = (HWND)hWndBtn;
if ( !s_wndprocRadioBtn )
s_wndprocRadioBtn = (WXFARPROC)wxGetWindowProc(hwndBtn);
wxSetWindowProc(hwndBtn, wxRadioBtnWndProc);
gs_boxFromButton[hwndBtn] = this;
}
// ----------------------------------------------------------------------------
// events generation
// ----------------------------------------------------------------------------
bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id_)
{
const int id = (signed short)id_;
if ( cmd == BN_CLICKED )
{
if (id == GetId())
return true;
int selectedButton = wxNOT_FOUND;
const unsigned int count = GetCount();
for ( unsigned int i = 0; i < count; i++ )
{
const HWND hwndBtn = (*m_radioButtons)[i];
if ( id == wxGetWindowId(hwndBtn) )
{
// we can get BN_CLICKED for a button which just became focused
// but it may not be checked, in which case we shouldn't
// generate a radiobox selection changed event for it
if ( ::SendMessage(hwndBtn, BM_GETCHECK, 0, 0) == BST_CHECKED )
selectedButton = i;
break;
}
}
if ( selectedButton == wxNOT_FOUND )
{
// just ignore it - due to a hack with WM_NCHITTEST handling in our
// wnd proc, we can receive dummy click messages when we click near
// the radiobox edge (this is ugly but Julian wouldn't let me get
// rid of this...)
return false;
}
if ( selectedButton != m_selectedButton )
{
m_selectedButton = selectedButton;
SendNotificationEvent();
}
//else: don't generate events when the selection doesn't change
return true;
}
else
return false;
}
void wxRadioBox::Command(wxCommandEvent & event)
{
SetSelection (event.GetInt());
SetFocus();
ProcessCommand(event);
}
void wxRadioBox::SendNotificationEvent()
{
wxCommandEvent event(wxEVT_RADIOBOX, m_windowId);
event.SetInt( m_selectedButton );
event.SetString(GetString(m_selectedButton));
event.SetEventObject( this );
ProcessCommand(event);
}
// ----------------------------------------------------------------------------
// simple accessors
// ----------------------------------------------------------------------------
unsigned int wxRadioBox::GetCount() const
{
return m_radioButtons ? m_radioButtons->GetCount() : 0u;
}
void wxRadioBox::SetString(unsigned int item, const wxString& label)
{
wxCHECK_RET( IsValid(item), wxT("invalid radiobox index") );
m_radioWidth[item] =
m_radioHeight[item] = wxDefaultCoord;
::SetWindowText((*m_radioButtons)[item], label.c_str());
InvalidateBestSize();
}
void wxRadioBox::SetSelection(int N)
{
wxCHECK_RET( IsValid(N), wxT("invalid radiobox index") );
// unselect the old button
if ( m_selectedButton != wxNOT_FOUND )
::SendMessage((*m_radioButtons)[m_selectedButton], BM_SETCHECK, 0, 0L);
// and select the new one
::SendMessage((*m_radioButtons)[N], BM_SETCHECK, 1, 0L);
m_selectedButton = N;
}
// Find string for position
wxString wxRadioBox::GetString(unsigned int item) const
{
wxCHECK_MSG( IsValid(item), wxEmptyString,
wxT("invalid radiobox index") );
return wxGetWindowText((*m_radioButtons)[item]);
}
void wxRadioBox::SetFocus()
{
if ( GetCount() > 0 )
{
::SetFocus((*m_radioButtons)[m_selectedButton == wxNOT_FOUND
? 0
: m_selectedButton]);
}
}
bool wxRadioBox::CanBeFocused() const
{
// If the control itself is hidden or disabled, no need to check anything
// else.
if ( !wxStaticBox::CanBeFocused() )
return false;
// Otherwise, check if we have any buttons that can be focused.
for ( size_t item = 0; item < m_radioButtons->GetCount(); item++ )
{
if ( IsItemEnabled(item) && IsItemShown(item) )
return true;
}
// We didn't find any items that can accept focus, so neither can we as a
// whole accept it.
return false;
}
// Enable a specific button
bool wxRadioBox::Enable(unsigned int item, bool enable)
{
wxCHECK_MSG( IsValid(item), false,
wxT("invalid item in wxRadioBox::Enable()") );
BOOL ret = MSWEnableHWND((*m_radioButtons)[item], enable);
return (ret == 0) != enable;
}
bool wxRadioBox::IsItemEnabled(unsigned int item) const
{
wxCHECK_MSG( IsValid(item), false,
wxT("invalid item in wxRadioBox::IsItemEnabled()") );
return ::IsWindowEnabled((*m_radioButtons)[item]) != 0;
}
// Show a specific button
bool wxRadioBox::Show(unsigned int item, bool show)
{
wxCHECK_MSG( IsValid(item), false,
wxT("invalid item in wxRadioBox::Show()") );
BOOL ret = ::ShowWindow((*m_radioButtons)[item], show ? SW_SHOW : SW_HIDE);
bool changed = (ret != 0) != show;
if ( changed )
{
InvalidateBestSize();
}
return changed;
}
bool wxRadioBox::IsItemShown(unsigned int item) const
{
wxCHECK_MSG( IsValid(item), false,
wxT("invalid item in wxRadioBox::IsItemShown()") );
// don't use IsWindowVisible() here because it would return false if the
// radiobox itself is hidden while we want to only return false if this
// button specifically is hidden
return (::GetWindowLong((*m_radioButtons)[item],
GWL_STYLE) & WS_VISIBLE) != 0;
}
#if wxUSE_TOOLTIPS
bool wxRadioBox::HasToolTips() const
{
return wxStaticBox::HasToolTips() || wxRadioBoxBase::HasItemToolTips();
}
void wxRadioBox::DoSetItemToolTip(unsigned int item, wxToolTip *tooltip)
{
// we have already checked for the item to be valid in wxRadioBoxBase
const HWND hwndRbtn = (*m_radioButtons)[item];
if ( tooltip != NULL )
tooltip->AddOtherWindow(hwndRbtn);
else // unset the tooltip
wxToolTip::Remove(hwndRbtn, 0, wxRect(0,0,0,0));
// the second parameter can be zero since it's ignored by Remove()
// as we pass a rect for which wxRect::IsEmpty()==true...
}
#endif // wxUSE_TOOLTIPS
bool wxRadioBox::Reparent(wxWindowBase *newParent)
{
if ( !wxStaticBox::Reparent(newParent) )
{
return false;
}
HWND hwndParent = GetHwndOf(GetParent());
for ( size_t item = 0; item < m_radioButtons->GetCount(); item++ )
{
::SetParent((*m_radioButtons)[item], hwndParent);
}
#ifdef __WXWINCE__
// put static box under the buttons in the Z-order
SetWindowPos(GetHwnd(), HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE);
#endif
return true;
}
WX_FORWARD_STD_METHODS_TO_SUBWINDOWS(wxRadioBox, wxStaticBox, m_radioButtons)
// ----------------------------------------------------------------------------
// size calculations
// ----------------------------------------------------------------------------
wxSize wxRadioBox::GetMaxButtonSize() const
{
// calculate the max button size
int widthMax = 0,
heightMax = 0;
const unsigned int count = GetCount();
for ( unsigned int i = 0 ; i < count; i++ )
{
int width, height;
if ( m_radioWidth[i] < 0 )
{
GetTextExtent(wxGetWindowText((*m_radioButtons)[i]), &width, &height);
// adjust the size to take into account the radio box itself
// FIXME this is totally bogus!
width += RADIO_SIZE;
height *= 3;
height /= 2;
}
else
{
width = m_radioWidth[i];
height = m_radioHeight[i];
}
if ( widthMax < width )
widthMax = width;
if ( heightMax < height )
heightMax = height;
}
return wxSize(widthMax, heightMax);
}
wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const
{
// the radiobox should be big enough for its buttons
int cx1, cy1;
wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());
int extraHeight = cy1;
int height = GetRowCount() * sizeBtn.y + cy1/2 + extraHeight;
int width = GetColumnCount() * (sizeBtn.x + cx1) + cx1;
// Add extra space under the label, if it exists.
if (!wxControl::GetLabel().empty())
height += cy1/2;
// and also wide enough for its label
int widthLabel;
GetTextExtent(GetLabelText(), &widthLabel, NULL);
widthLabel += RADIO_SIZE; // FIXME this is bogus too
if ( widthLabel > width )
width = widthLabel;
return wxSize(width, height);
}
wxSize wxRadioBox::DoGetBestSize() const
{
if ( !m_radioButtons )
{
// if we're not fully initialized yet, we can't meaningfully compute
// our best size, we'll do it later
return wxSize(1, 1);
}
wxSize best = GetTotalButtonSize(GetMaxButtonSize());
CacheBestSize(best);
return best;
}
void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
{
if ( (width == wxDefaultCoord && (sizeFlags & wxSIZE_AUTO_WIDTH)) ||
(height == wxDefaultCoord && (sizeFlags & wxSIZE_AUTO_HEIGHT)) )
{
// Attempt to have a look coherent with other platforms: We compute the
// biggest toggle dim, then we align all items according this value.
const wxSize totSize = GetTotalButtonSize(GetMaxButtonSize());
// only change our width/height if asked for
if ( width == wxDefaultCoord && (sizeFlags & wxSIZE_AUTO_WIDTH) )
width = totSize.x;
if ( height == wxDefaultCoord && (sizeFlags & wxSIZE_AUTO_HEIGHT) )
height = totSize.y;
}
wxStaticBox::DoSetSize(x, y, width, height);
}
void wxRadioBox::DoMoveWindow(int x, int y, int width, int height)
{
wxStaticBox::DoMoveWindow(x, y, width, height);
PositionAllButtons(x, y, width, height);
}
void
wxRadioBox::PositionAllButtons(int x, int y, int width, int WXUNUSED(height))
{
wxSize maxSize = GetMaxButtonSize();
int maxWidth = maxSize.x,
maxHeight = maxSize.y;
// Now position all the buttons: the current button will be put at
// wxPoint(x_offset, y_offset) and the new row/column will start at
// startX/startY. The size of all buttons will be the same wxSize(maxWidth,
// maxHeight) except for the buttons in the last column which should extend
// to the right border of radiobox and thus can be wider than this.
// Also, remember that wxRA_SPECIFY_COLS means that we arrange buttons in
// left to right order and GetMajorDim() is the number of columns while
// wxRA_SPECIFY_ROWS means that the buttons are arranged top to bottom and
// GetMajorDim() is the number of rows.
int cx1, cy1;
wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());
int x_offset = x + cx1;
int y_offset = y + cy1;
// Add extra space under the label, if it exists.
if (!wxControl::GetLabel().empty())
y_offset += cy1/2;
int startX = x_offset;
int startY = y_offset;
const unsigned int count = GetCount();
for (unsigned int i = 0; i < count; i++)
{
// the last button in the row may be wider than the other ones as the
// radiobox may be wider than the sum of the button widths (as it
// happens, for example, when the radiobox label is very long)
bool isLastInTheRow;
if ( m_windowStyle & wxRA_SPECIFY_COLS )
{
// item is the last in its row if it is a multiple of the number of
// columns or if it is just the last item
unsigned int n = i + 1;
isLastInTheRow = ((n % GetMajorDim()) == 0) || (n == count);
}
else // wxRA_SPECIFY_ROWS
{
// item is the last in the row if it is in the last columns
isLastInTheRow = i >= (count/GetMajorDim())*GetMajorDim();
}
// is this the start of new row/column?
if ( i && (i % GetMajorDim() == 0) )
{
if ( m_windowStyle & wxRA_SPECIFY_ROWS )
{
// start of new column
y_offset = startY;
x_offset += maxWidth + cx1;
}
else // start of new row
{
x_offset = startX;
y_offset += maxHeight;
if (m_radioWidth[0]>0)
y_offset += cy1/2;
}
}
int widthBtn;
if ( isLastInTheRow )
{
// make the button go to the end of radio box
widthBtn = startX + width - x_offset - 2*cx1;
if ( widthBtn < maxWidth )
widthBtn = maxWidth;
}
else
{
// normal button, always of the same size
widthBtn = maxWidth;
}
// make all buttons of the same, maximal size - like this they cover
// the radiobox entirely and the radiobox tooltips are always shown
// (otherwise they are not when the mouse pointer is in the radiobox
// part not belonging to any radiobutton)
DoMoveSibling((*m_radioButtons)[i], x_offset, y_offset, widthBtn, maxHeight);
// where do we put the next button?
if ( m_windowStyle & wxRA_SPECIFY_ROWS )
{
// below this one
y_offset += maxHeight;
if (m_radioWidth[0]>0)
y_offset += cy1/2;
}
else
{
// to the right of this one
x_offset += widthBtn + cx1;
}
}
}
int wxRadioBox::GetItemFromPoint(const wxPoint& pt) const
{
const unsigned int count = GetCount();
for ( unsigned int i = 0; i < count; i++ )
{
RECT rect = wxGetWindowRect((*m_radioButtons)[i]);
if ( rect.left <= pt.x && pt.x < rect.right &&
rect.top <= pt.y && pt.y < rect.bottom )
{
return i;
}
}
return wxNOT_FOUND;
}
// ----------------------------------------------------------------------------
// radio box drawing
// ----------------------------------------------------------------------------
#ifndef __WXWINCE__
WXHRGN wxRadioBox::MSWGetRegionWithoutChildren()
{
RECT rc;
::GetWindowRect(GetHwnd(), &rc);
HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
const unsigned int count = GetCount();
for ( unsigned int i = 0; i < count; ++i )
{
// don't clip out hidden children
if ( !IsItemShown(i) )
continue;
::GetWindowRect((*m_radioButtons)[i], &rc);
AutoHRGN hrgnchild(::CreateRectRgnIndirect(&rc));
::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
}
return (WXHRGN)hrgn;
}
#endif // __WXWINCE__
// ---------------------------------------------------------------------------
// window proc for radio buttons
// ---------------------------------------------------------------------------
LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
UINT message,
WPARAM wParam,
LPARAM lParam)
{
wxRadioBox * const radiobox = wxRadioBox::GetFromRadioButtonHWND(hwnd);
wxCHECK_MSG( radiobox, 0, wxT("Should have the associated radio box") );
switch ( message )
{
case WM_GETDLGCODE:
// we must tell IsDialogMessage()/our kbd processing code that we
// want to process arrows ourselves because neither of them is
// smart enough to handle arrows properly for us
{
long lDlgCode = ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd,
message, wParam, lParam);
return lDlgCode | DLGC_WANTARROWS;
}
case WM_KEYDOWN:
{
bool processed = true;
wxDirection dir;
switch ( wParam )
{
case VK_UP:
dir = wxUP;
break;
case VK_LEFT:
dir = wxLEFT;
break;
case VK_DOWN:
dir = wxDOWN;
break;
case VK_RIGHT:
dir = wxRIGHT;
break;
default:
processed = false;
// just to suppress the compiler warning
dir = wxALL;
}
if ( processed )
{
int selOld = radiobox->GetSelection();
int selNew = radiobox->GetNextItem
(
selOld,
dir,
radiobox->GetWindowStyle()
);
if ( selNew != selOld )
{
radiobox->SetSelection(selNew);
radiobox->SetFocus();
// emulate the button click
radiobox->SendNotificationEvent();
return 0;
}
}
}
break;
case WM_SETFOCUS:
case WM_KILLFOCUS:
{
// if we don't do this, no focus events are generated for the
// radiobox and, besides, we need to notify the parent about
// the focus change, otherwise the focus handling logic in
// wxControlContainer doesn't work
if ( message == WM_SETFOCUS )
radiobox->HandleSetFocus((WXHWND)wParam);
else
radiobox->HandleKillFocus((WXHWND)wParam);
}
break;
#ifndef __WXWINCE__
case WM_HELP:
{
bool processed = false;
wxEvtHandler * const handler = radiobox->GetEventHandler();
HELPINFO* info = (HELPINFO*) lParam;
if ( info->iContextType == HELPINFO_WINDOW )
{
for ( wxWindow* subjectOfHelp = radiobox;
subjectOfHelp;
subjectOfHelp = subjectOfHelp->GetParent() )
{
wxHelpEvent helpEvent(wxEVT_HELP,
subjectOfHelp->GetId(),
wxPoint(info->MousePos.x,
info->MousePos.y));
helpEvent.SetEventObject(radiobox);
if ( handler->ProcessEvent(helpEvent) )
{
processed = true;
break;
}
}
}
else if (info->iContextType == HELPINFO_MENUITEM)
{
wxHelpEvent helpEvent(wxEVT_HELP, info->iCtrlId);
helpEvent.SetEventObject(radiobox);
processed = handler->ProcessEvent(helpEvent);
}
if ( processed )
return 0;
}
break;
#endif // !__WXWINCE__
}
return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, message, wParam, lParam);
}
#endif // wxUSE_RADIOBOX
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