Don't use DDEExec registry key in wxMSW wxExecute() if it's empty.

[wxWidgets.git] / src / msw / radiobut.cpp

diff --git a/src/msw/radiobut.cpp b/src/msw/radiobut.cpp
index 67653ecc5d253ad574774a244eb077adf15e79c0..17323a9c1f28ee3d5b9afaa5c0477ec1d84cebb7 100644 (file)
--- a/src/msw/radiobut.cpp
+++ b/src/msw/radiobut.cpp
@@ -1,237 +1,299 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        radiobut.cpp
+// Name:        src/msw/radiobut.cpp

 // Purpose:     wxRadioButton
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
 // Purpose:     wxRadioButton
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98

-// RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:     wxWindows license
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "radiobut.h"
-#endif
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------

 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #endif
 

-#ifndef WX_PRECOMP
-#include <stdio.h>
-#include "wx/setup.h"
+#if wxUSE_RADIOBTN
+

 #include "wx/radiobut.h"
 #include "wx/radiobut.h"

-#include "wx/brush.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/settings.h"
+    #include "wx/dcscreen.h"
+    #include "wx/toplevel.h"

 #endif
 
 #include "wx/msw/private.h"
 
 #endif
 
 #include "wx/msw/private.h"
 

-IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl)
-// IMPLEMENT_DYNAMIC_CLASS(wxBitmapRadioButton, wxRadioButton)
+// ============================================================================
+// wxRadioButton implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxRadioButton creation
+// ----------------------------------------------------------------------------

 
 

-bool wxRadioButton::MSWCommand(WXUINT param, WXWORD id)
+void wxRadioButton::Init()

 {
 {

-  if (param == BN_CLICKED)
-  {
-    wxCommandEvent event(wxEVT_COMMAND_RADIOBUTTON_SELECTED, m_windowId);
-    event.SetEventObject( this );
-    ProcessCommand(event);
-    return TRUE;
-  }
-  else return FALSE;
+    m_isChecked = false;

 }
 
 }
 

-bool wxRadioButton::Create(wxWindow *parent, wxWindowID id,
-       const wxString& label,
-           const wxPoint& pos,
-           const wxSize& size, long style,
-           const wxValidator& validator,
-           const wxString& name)
+bool wxRadioButton::Create(wxWindow *parent,
+                           wxWindowID id,
+                           const wxString& label,
+                           const wxPoint& pos,
+                           const wxSize& size,
+                           long style,
+                           const wxValidator& validator,
+                           const wxString& name)

 {
 {

-  SetName(name);
-  SetValidator(validator);
-
-  if (parent) parent->AddChild(this);
-
-  SetBackgroundColour(parent->GetBackgroundColour());
-  SetForegroundColour(parent->GetForegroundColour());
+    if ( !CreateControl(parent, id, pos, size, style, validator, name) )
+        return false;

 
 

-  if ( id == -1 )
-    m_windowId = (int)NewControlId();
-  else
-  m_windowId = id;
+    WXDWORD exstyle = 0;
+    WXDWORD msStyle = MSWGetStyle(style, &exstyle);

 
 

-  int x = pos.x;
-  int y = pos.y;
-  int width = size.x;
-  int height = size.y;
+    if ( !MSWCreateControl(wxT("BUTTON"), msStyle, pos, size, label, exstyle) )
+        return false;

 
 

-  m_windowStyle = style ;
+    // for compatibility with wxGTK, the first radio button in a group is
+    // always checked (this makes sense anyhow as you need to ensure that at
+    // least one button in the group is checked and this is the simplest way to
+    // do it)
+    if ( HasFlag(wxRB_GROUP) )
+        SetValue(true);

 
 

-  long groupStyle = 0;
-  if (m_windowStyle & wxRB_GROUP)
-    groupStyle = WS_GROUP;
+    return true;
+}

 
 

-//  long msStyle = groupStyle | RADIO_FLAGS;
-  long msStyle = groupStyle | BS_AUTORADIOBUTTON | WS_CHILD | WS_VISIBLE ;
+// ----------------------------------------------------------------------------
+// wxRadioButton functions
+// ----------------------------------------------------------------------------

 
 

-  bool want3D;
-  WXDWORD exStyle = Determine3DEffects(0, &want3D) ;
+void wxRadioButton::SetValue(bool value)
+{
+    ::SendMessage(GetHwnd(), BM_SETCHECK,
+                  value ? BST_CHECKED : BST_UNCHECKED, 0);
+
+    m_isChecked = value;
+
+    if ( !value )
+        return;
+
+    // if we set the value of one radio button we also must clear all the other
+    // buttons in the same group: Windows doesn't do it automatically
+    //
+    // moreover, if another radiobutton in the group currently has the focus,
+    // we have to set it to this radiobutton, else the old radiobutton will be
+    // reselected automatically, if a parent window loses the focus and regains
+    // it.
+    wxWindow * const focus = FindFocus();
+    wxTopLevelWindow * const
+        tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
+    wxCHECK_RET( tlw, wxT("radio button outside of TLW?") );
+    wxWindow * const focusInTLW = tlw->GetLastFocus();
+
+    const wxWindowList& siblings = GetParent()->GetChildren();
+    wxWindowList::compatibility_iterator nodeThis = siblings.Find(this);
+    wxCHECK_RET( nodeThis, wxT("radio button not a child of its parent?") );
+
+    // this will be set to true in the code below if the focus is in our TLW
+    // and belongs to one of the other buttons in the same group
+    bool shouldSetFocus = false;
+
+    // this will be set to true if the focus is outside of our TLW currently
+    // but the remembered focus of this TLW is one of the other buttons in the
+    // same group
+    bool shouldSetTLWFocus = false;
+
+    // if it's not the first item of the group ...
+    if ( !HasFlag(wxRB_GROUP) )
+    {
+        // ... turn off all radio buttons before it
+        for ( wxWindowList::compatibility_iterator nodeBefore = nodeThis->GetPrevious();
+              nodeBefore;
+              nodeBefore = nodeBefore->GetPrevious() )
+        {
+            wxRadioButton *btn = wxDynamicCast(nodeBefore->GetData(),
+                                               wxRadioButton);
+            if ( !btn )
+            {
+                // don't stop on non radio buttons, we could have intermixed
+                // buttons and e.g. static labels
+                continue;
+            }
+
+            if ( btn->HasFlag(wxRB_SINGLE) )
+                {
+                    // A wxRB_SINGLE button isn't part of this group
+                    break;
+                }
+
+            if ( btn == focus )
+                shouldSetFocus = true;
+            else if ( btn == focusInTLW )
+                shouldSetTLWFocus = true;
+
+            btn->SetValue(false);
+
+            if ( btn->HasFlag(wxRB_GROUP) )
+            {
+                // even if there are other radio buttons before this one,
+                // they're not in the same group with us
+                break;
+            }
+        }
+    }

 
 

-  // Even with extended styles, need to combine with WS_BORDER
-  // for them to look right.
-/*
-  if ( want3D || wxStyleHasBorder(m_windowStyle) )
-    msStyle |= WS_BORDER;
-*/
+    // ... and also turn off all buttons after this one
+    for ( wxWindowList::compatibility_iterator nodeAfter = nodeThis->GetNext();
+          nodeAfter;
+          nodeAfter = nodeAfter->GetNext() )
+    {
+        wxRadioButton *btn = wxDynamicCast(nodeAfter->GetData(),
+                                           wxRadioButton);

 
 

-  m_hWnd = (WXHWND) CreateWindowEx(exStyle, RADIO_CLASS, (const wxChar *)label,
-                          msStyle,0,0,0,0,
-                          (HWND) parent->GetHWND(), (HMENU)m_windowId, wxGetInstance(), NULL);
+        if ( !btn )
+            continue;

 
 

-  wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create radiobutton") );
+        if ( btn->HasFlag(wxRB_GROUP | wxRB_SINGLE) )
+        {
+            // no more buttons or the first button of the next group
+            break;
+        }

 
 

-#if wxUSE_CTL3D
-  if (want3D)
-  {
-    Ctl3dSubclassCtl((HWND) m_hWnd);
-   m_useCtl3D = TRUE;
-  }
-#endif
+        if ( btn == focus )
+            shouldSetFocus = true;
+        else if ( btn == focusInTLW )
+            shouldSetTLWFocus = true;

 
 

-  SetFont(parent->GetFont());
+        btn->SetValue(false);
+    }

 
 

-  // Subclass again for purposes of dialog editing mode
-  SubclassWin((WXHWND)m_hWnd);
+    if ( shouldSetFocus )
+        SetFocus();
+    else if ( shouldSetTLWFocus )
+        tlw->SetLastFocus(this);
+}

 
 

-//  SetValue(value);
+bool wxRadioButton::GetValue() const
+{
+    wxASSERT_MSG( m_isChecked ==
+                    (::SendMessage(GetHwnd(), BM_GETCHECK, 0, 0L) != 0),
+                  wxT("wxRadioButton::m_isChecked is out of sync?") );

 
 

-  // start GRW fix
-  if (label != wxT(""))
-  {
-    int label_width, label_height;
-    GetTextExtent(label, &label_width, &label_height, NULL, NULL, & this->GetFont());
-    if (width < 0)
-      width = (int)(label_width + RADIO_SIZE);
-    if (height<0)
-    {
-      height = (int)(label_height);
-      if (height < RADIO_SIZE)
-        height = RADIO_SIZE;
-    }
-  }
-  else
-  {
-    if (width < 0)
-      width = RADIO_SIZE;
-    if (height < 0)
-      height = RADIO_SIZE;
-  }
-  // end GRW fix
-
-  SetSize(x, y, width, height);
-
-  return TRUE;
+    return m_isChecked;

 }
 
 }
 

+// ----------------------------------------------------------------------------
+// wxRadioButton event processing
+// ----------------------------------------------------------------------------

 
 

-void wxRadioButton::SetLabel(const wxString& label)
+void wxRadioButton::Command (wxCommandEvent& event)

 {
 {

-  SetWindowText((HWND) GetHWND(), (const wxChar *)label);
+    SetValue(event.GetInt() != 0);
+    ProcessCommand(event);

 }
 
 }
 

-void wxRadioButton::SetValue(bool value)
+bool wxRadioButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))

 {
 {

-// Following necessary for Win32s, because Win32s translate BM_SETCHECK
-  SendMessage((HWND) GetHWND(), BM_SETCHECK, (WPARAM)value, 0L);
-}
+    if ( param != BN_CLICKED )
+        return false;

 
 

-// Get single selection
-bool wxRadioButton::GetValue(void) const
-{
-  return (SendMessage((HWND) GetHWND(), BM_GETCHECK, 0, 0L) != 0);
-}
+    if ( !m_isChecked )
+    {
+        // we need to manually update the button state as we use BS_RADIOBUTTON
+        // and not BS_AUTORADIOBUTTON
+        SetValue(true);

 
 

-void wxRadioButton::Command (wxCommandEvent & event)
-{
-  SetValue ( (event.m_commandInt != 0) );
-  ProcessCommand (event);
+        wxCommandEvent event(wxEVT_RADIOBUTTON, GetId());
+        event.SetEventObject( this );
+        event.SetInt(true); // always checked
+
+        ProcessCommand(event);
+    }
+
+    return true;

 }
 
 }
 

+// ----------------------------------------------------------------------------
+// wxRadioButton geometry
+// ----------------------------------------------------------------------------

 
 

-// Not implemented
-#if 0
-bool wxBitmapRadioButton::Create(wxWindow *parent, wxWindowID id,
-       const wxBitmap *bitmap,
-           const wxPoint& pos,
-           const wxSize& size, long style,
-           const wxValidator& validator,
-           const wxString& name)
+wxSize wxRadioButton::DoGetBestSize() const

 {
 {

-  SetName(name);
-  SetValidator(validator);
-
-  if (parent) parent->AddChild(this);
-  SetBackgroundColour(parent->GetBackgroundColour());
-  SetForegroundColour(parent->GetForegroundColour());
-
-  if ( id == -1 )
-    m_windowId = (int)NewControlId();
-  else
-  m_windowId = id;
-
-  int x = pos.x;
-  int y = pos.y;
-  int width = size.x;
-  int height = size.y;
-  m_windowStyle = style ;
-
-  long groupStyle = 0;
-  if (m_windowStyle & wxRB_GROUP)
-    groupStyle = WS_GROUP;
-
-//  long msStyle = groupStyle | RADIO_FLAGS;
-  long msStyle = groupStyle | BS_RADIOBUTTON | WS_CHILD | WS_VISIBLE ;
-
-  m_hWnd = (WXHWND) CreateWindowEx(MakeExtendedStyle(m_windowStyle), RADIO_CLASS, "toggle",
-                          msStyle,0,0,0,0,
-                          (HWND) parent->GetHWND(), (HMENU)m_windowId, wxGetInstance(), NULL);
-
-  wxCHECK_MSG( m_hWnd, "Failed to create radio button", FALSE );
-
-#if wxUSE_CTL3D
-  if (!(GetParent()->GetWindowStyleFlag() & wxUSER_COLOURS))
-  {
-    Ctl3dSubclassCtl((HWND) GetHWND());
-    m_useCtl3D = TRUE;
-  }
-#endif
+    static int s_radioSize = 0;

 
 

-  // Subclass again for purposes of dialog editing mode
-  SubclassWin(GetHWND());
+    if ( !s_radioSize )
+    {
+        wxScreenDC dc;
+        dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));

 
 

-  SetSize(x, y, width, height);
+        s_radioSize = dc.GetCharHeight();

 
 

-  return TRUE;
-}
+        // radio button bitmap size under CE is bigger than the font height,
+        // adding just one pixel seems to work fine for the default font but it
+        // would be nice to find some better way to find the correct height
+#ifdef __WXWINCE__
+        s_radioSize++;
+#endif // __WXWINCE__
+    }

 
 

-void wxBitmapRadioButton::SetLabel(const wxBitmap *bitmap)
-{
-}
+    wxString str = GetLabel();

 
 

-void wxBitmapRadioButton::SetValue(bool value)
-{
-// Following necessary for Win32s, because Win32s translate BM_SETCHECK
-  SendMessage((HWND) GetHWND(), BM_SETCHECK, (WPARAM)value, 0L);
+    int wRadio, hRadio;
+    if ( !str.empty() )
+    {
+        GetTextExtent(GetLabelText(str), &wRadio, &hRadio);
+        wRadio += s_radioSize + GetCharWidth();
+
+        if ( hRadio < s_radioSize )
+            hRadio = s_radioSize;
+    }
+    else
+    {
+        wRadio = s_radioSize;
+        hRadio = s_radioSize;
+    }
+
+    wxSize best(wRadio, hRadio);
+    CacheBestSize(best);
+    return best;

 }
 
 }
 

-// Get single selection, for single choice list items
-bool wxBitmapRadioButton::GetValue(void) const
+WXDWORD wxRadioButton::MSWGetStyle(long style, WXDWORD *exstyle) const

 {
 {

-  return (bool)SendMessage((HWND) GetHWND(), BM_GETCHECK, 0, 0L);
+    WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
+
+    if ( HasFlag(wxRB_GROUP) )
+        msStyle |= WS_GROUP;
+
+    // we use BS_RADIOBUTTON and not BS_AUTORADIOBUTTON because the use of the
+    // latter can easily result in the application entering an infinite loop
+    // inside IsDialogMessage()
+    //
+    // we used to use BS_RADIOBUTTON only for wxRB_SINGLE buttons but there
+    // doesn't seem to be any harm to always use it and it prevents some hangs,
+    // see #9786
+    msStyle |= BS_RADIOBUTTON;
+
+    if ( style & wxCLIP_SIBLINGS )
+        msStyle |= WS_CLIPSIBLINGS;
+    if ( style & wxALIGN_RIGHT )
+        msStyle |= BS_LEFTTEXT | BS_RIGHT;
+
+
+    return msStyle;

 }
 
 }
 

-#endif
+#endif // wxUSE_RADIOBTN