/////////////////////////////////////////////////////////////////////////////
-// Name: radiobut.cpp
+// Name: msw/radiobut.cpp
// 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
/////////////////////////////////////////////////////////////////////////////
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
#ifdef __GNUG__
#pragma implementation "radiobut.h"
#endif
#pragma hdrstop
#endif
+#if wxUSE_RADIOBTN
+
#ifndef WX_PRECOMP
-#include <stdio.h>
-#include "wx/setup.h"
#include "wx/radiobut.h"
+#include "wx/settings.h"
+#include "wx/brush.h"
+#include "wx/dcscreen.h"
#endif
#include "wx/msw/private.h"
-#if !USE_SHARED_LIBRARY
-IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl)
-// IMPLEMENT_DYNAMIC_CLASS(wxBitmapRadioButton, wxRadioButton)
-#endif
-
-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 ( 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 ;
+// ============================================================================
+// wxRadioButton implementation
+// ============================================================================
- bool want3D;
- WXDWORD exStyle = Determine3DEffects(0, &want3D) ;
+// ----------------------------------------------------------------------------
+// wxRadioButton creation
+// ----------------------------------------------------------------------------
- // Even with extended styles, need to combine with WS_BORDER
- // for them to look right.
- if ( want3D || wxStyleHasBorder(m_windowStyle) )
- msStyle |= WS_BORDER;
-
- m_hWnd = (WXHWND) CreateWindowEx(exStyle, RADIO_CLASS, (const char *)label,
- msStyle,0,0,0,0,
- (HWND) parent->GetHWND(), (HMENU)m_windowId, wxGetInstance(), NULL);
-
- wxCHECK_MSG( m_hWnd, FALSE, "Failed to create radiobutton" );
+IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl)
-#if CTL3D
- if (want3D)
- {
- Ctl3dSubclassCtl((HWND) m_hWnd);
- m_useCtl3D = TRUE;
- }
-#endif
+void wxRadioButton::Init()
+{
+ m_focusJustSet = FALSE;
+}
- SetFont(* parent->GetFont());
+bool wxRadioButton::Create(wxWindow *parent,
+ wxWindowID id,
+ const wxString& label,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxValidator& validator,
+ const wxString& name)
+{
+ if ( !CreateControl(parent, id, pos, size, style, validator, name) )
+ return FALSE;
+
+ long msStyle = WS_TABSTOP;
+ if ( HasFlag(wxRB_GROUP) )
+ msStyle |= WS_GROUP;
+
+ /*
+ wxRB_SINGLE is a temporary workaround for the following problem: if you
+ have 2 radiobuttons in the same group but which are not consecutive in
+ the dialog, Windows can enter an infinite loop! The simplest way to
+ reproduce it is to create radio button, then a panel and then another
+ radio button: then checking the last button hangs the app.
+
+ Ideally, we'd detect (and avoid) such situation automatically but for
+ now, as I don't know how to do it, just allow the user to create
+ BS_RADIOBUTTON buttons for such situations.
+ */
+ msStyle |= HasFlag(wxRB_SINGLE) ? BS_RADIOBUTTON : BS_AUTORADIOBUTTON;
+
+ if ( HasFlag(wxCLIP_SIBLINGS) )
+ msStyle |= WS_CLIPSIBLINGS;
+
+ if ( !MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, 0) )
+ return FALSE;
+
+ // 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 simlpest way to
+ // do it)
+ if ( HasFlag(wxRB_GROUP) )
+ SetValue(TRUE);
+
+ return TRUE;
+}
- // Subclass again for purposes of dialog editing mode
- SubclassWin((WXHWND)m_hWnd);
+// ----------------------------------------------------------------------------
+// wxRadioButton functions
+// ----------------------------------------------------------------------------
-// SetValue(value);
+void wxRadioButton::SetValue(bool value)
+{
+ // BST_CHECKED is defined as 1, BST_UNCHECKED as 0, so we can just pass
+ // value as is (we don't use BST_XXX here as they're not defined for Win16)
+ (void)::SendMessage(GetHwnd(), BM_SETCHECK, (WPARAM)value, 0L);
- // start GRW fix
- if (label != "")
- {
- int label_width, label_height;
- GetTextExtent(label, &label_width, &label_height, NULL, NULL, GetFont());
- if (width < 0)
- width = (int)(label_width + RADIO_SIZE);
- if (height<0)
+ // 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
+ if ( value )
{
- height = (int)(label_height);
- if (height < RADIO_SIZE)
- height = RADIO_SIZE;
+ const wxWindowList& siblings = GetParent()->GetChildren();
+ wxWindowList::Node *nodeThis = siblings.Find(this);
+ wxCHECK_RET( nodeThis, _T("radio button not a child of its parent?") );
+
+ // if it's not the first item of the group ...
+ if ( !HasFlag(wxRB_GROUP) )
+ {
+ // ... turn off all radio buttons before it
+ for ( wxWindowList::Node *nodeBefore = nodeThis->GetPrevious();
+ nodeBefore;
+ nodeBefore = nodeBefore->GetPrevious() )
+ {
+ wxRadioButton *btn = wxDynamicCast(nodeBefore->GetData(),
+ wxRadioButton);
+ if ( !btn )
+ {
+ // the radio buttons in a group must be consecutive, so
+ // there are no more of them
+ break;
+ }
+
+ 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;
+ }
+ }
+ }
+
+ // ... and also turn off all buttons after this one
+ for ( wxWindowList::Node *nodeAfter = nodeThis->GetNext();
+ nodeAfter;
+ nodeAfter = nodeAfter->GetNext() )
+ {
+ wxRadioButton *btn = wxDynamicCast(nodeAfter->GetData(),
+ wxRadioButton);
+
+ if ( !btn || btn->HasFlag(wxRB_GROUP) )
+ {
+ // no more buttons or the first button of the next group
+ break;
+ }
+
+ btn->SetValue(FALSE);
+ }
}
- }
- else
- {
- if (width < 0)
- width = RADIO_SIZE;
- if (height < 0)
- height = RADIO_SIZE;
- }
- // end GRW fix
-
- SetSize(x, y, width, height);
-
- return TRUE;
}
-
-void wxRadioButton::SetLabel(const wxString& label)
+bool wxRadioButton::GetValue() const
{
- SetWindowText((HWND) GetHWND(), (const char *)label);
+ // NB: this will also return TRUE for BST_INDETERMINATE value if we ever
+ // have 3-state radio buttons
+ return ::SendMessage(GetHwnd(), BM_GETCHECK, 0, 0L) != 0;
}
-void wxRadioButton::SetValue(bool value)
+// ----------------------------------------------------------------------------
+// wxRadioButton event processing
+// ----------------------------------------------------------------------------
+
+void wxRadioButton::Command (wxCommandEvent& event)
{
-// Following necessary for Win32s, because Win32s translate BM_SETCHECK
- SendMessage((HWND) GetHWND(), BM_SETCHECK, (WPARAM)value, 0L);
+ SetValue(event.m_commandInt != 0);
+ ProcessCommand(event);
}
-// Get single selection, for single choice list items
-bool wxRadioButton::GetValue(void) const
+void wxRadioButton::SetFocus()
{
- return (SendMessage((HWND) GetHWND(), BM_SETCHECK, 0, 0L) != 0);
+ // when the radio button receives a WM_SETFOCUS message it generates a
+ // BN_CLICKED which is totally unexpected and leads to catastrophic results
+ // if you pop up a dialog from the radio button event handler as, when the
+ // dialog is dismissed, the focus is returned to the radio button which
+ // generates BN_CLICKED which leads to showing another dialog and so on
+ // without end!
+ //
+ // to avoid this, we drop the pseudo BN_CLICKED events generated when the
+ // button gains focus
+ m_focusJustSet = TRUE;
+
+ wxControl::SetFocus();
}
-WXHBRUSH wxRadioButton::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
- WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
+bool wxRadioButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
{
-#if CTL3D
- if ( m_useCtl3D )
- {
- HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
- return (WXHBRUSH) hbrush;
- }
-#endif
-
- if (GetParent()->GetTransparentBackground())
- SetBkMode((HDC) pDC, TRANSPARENT);
- else
- SetBkMode((HDC) pDC, OPAQUE);
+ if ( param != BN_CLICKED )
+ return FALSE;
- ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
- ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
-
- wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
+ if ( m_focusJustSet )
+ {
+ // see above: we want to ignore this event
+ m_focusJustSet = FALSE;
+ }
+ else // a real clicked event
+ {
+ bool isChecked = GetValue();
+
+ if ( HasFlag(wxRB_SINGLE) )
+ {
+ // when we use a "manual" radio button, we have to check the button
+ // ourselves -- but it's reset to unchecked state by the user code
+ // (presumably when another button is pressed)
+ if ( !isChecked )
+ SetValue(TRUE);
+ }
+
+ wxCommandEvent event(wxEVT_COMMAND_RADIOBUTTON_SELECTED, GetId());
+ event.SetEventObject( this );
+ event.SetInt(isChecked);
+
+ ProcessCommand(event);
+ }
- // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
- // has a zero usage count.
-// backgroundBrush->RealizeResource();
- return (WXHBRUSH) backgroundBrush->GetResourceHandle();
+ return TRUE;
}
-void wxRadioButton::Command (wxCommandEvent & event)
+// ----------------------------------------------------------------------------
+// wxRadioButton geometry
+// ----------------------------------------------------------------------------
+
+wxSize wxRadioButton::DoGetBestSize() const
{
- SetValue ( (event.m_commandInt != 0) );
- ProcessCommand (event);
-}
+ static int s_radioSize = 0;
+ if ( !s_radioSize )
+ {
+ wxScreenDC dc;
+ dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
-// 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)
-{
- 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 CTL3D
- if (!(GetParent()->GetWindowStyleFlag() & wxUSER_COLOURS))
- {
- Ctl3dSubclassCtl((HWND) GetHWND());
- m_useCtl3D = TRUE;
- }
-#endif
+ s_radioSize = dc.GetCharHeight();
+ }
- // Subclass again for purposes of dialog editing mode
- SubclassWin(GetHWND());
+ wxString str = GetLabel();
- SetSize(x, y, width, height);
+ int wRadio, hRadio;
+ if ( !str.empty() )
+ {
+ GetTextExtent(str, &wRadio, &hRadio);
+ wRadio += s_radioSize + GetCharWidth();
- return TRUE;
-}
+ if ( hRadio < s_radioSize )
+ hRadio = s_radioSize;
+ }
+ else
+ {
+ wRadio = s_radioSize;
+ hRadio = s_radioSize;
+ }
-void wxBitmapRadioButton::SetLabel(const wxBitmap *bitmap)
-{
+ return wxSize(wRadio, hRadio);
}
-void wxBitmapRadioButton::SetValue(bool value)
+long wxRadioButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
{
-// Following necessary for Win32s, because Win32s translate BM_SETCHECK
- SendMessage((HWND) GetHWND(), BM_SETCHECK, (WPARAM)value, 0L);
-}
+ if (nMsg == WM_SETFOCUS)
+ {
+ m_focusJustSet = TRUE;
-// Get single selection, for single choice list items
-bool wxBitmapRadioButton::GetValue(void) const
-{
- return (bool)SendMessage((HWND) GetHWND(), BM_GETCHECK, 0, 0L);
+ long ret = wxControl::MSWWindowProc(nMsg, wParam, lParam);
+
+ m_focusJustSet = FALSE;
+
+ return ret;
+ }
+ return wxControl::MSWWindowProc(nMsg, wParam, lParam);
}
-#endif
+#endif // wxUSE_RADIOBTN
projects / wxWidgets.git / blobdiff