X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2bda0e173844e8e0f8acf4e8ad8b5c26e5c6fe5d..b5435dccd098ae153c3b7b3b8fca8dd0d763986c:/src/msw/radiobut.cpp diff --git a/src/msw/radiobut.cpp b/src/msw/radiobut.cpp index f3a4b655d8..4cff6cf1e3 100644 --- a/src/msw/radiobut.cpp +++ b/src/msw/radiobut.cpp @@ -1,14 +1,22 @@ ///////////////////////////////////////////////////////////////////////////// -// 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 @@ -20,227 +28,257 @@ #pragma hdrstop #endif +#if wxUSE_RADIOBTN + #ifndef WX_PRECOMP -#include -#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 +// ============================================================================ +// wxRadioButton implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// wxRadioButton creation +// ---------------------------------------------------------------------------- + IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl) -// IMPLEMENT_DYNAMIC_CLASS(wxBitmapRadioButton, wxRadioButton) -#endif -bool wxRadioButton::Create(wxWindow *parent, const wxWindowID id, - const wxString& label, - const wxPoint& pos, - const wxSize& size, const long style, - const wxValidator& validator, - const wxString& name) +void wxRadioButton::Init() { - SetName(name); - SetValidator(validator); - - if (parent) parent->AddChild(this); - - SetBackgroundColour(parent->GetDefaultBackgroundColour()); - SetForegroundColour(parent->GetDefaultForegroundColour()); - - 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 ; - - bool want3D; - WXDWORD exStyle = Determine3DEffects(0, &want3D) ; - - // Even with extended styles, need to combine with WS_BORDER - // for them to look right. - if (want3D && ((m_windowStyle & wxSIMPLE_BORDER) || (m_windowStyle & wxRAISED_BORDER) || - (m_windowStyle & wxSUNKEN_BORDER) || (m_windowStyle & wxDOUBLE_BORDER))) - 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); -#if CTL3D - if (want3D) - { - Ctl3dSubclassCtl((HWND) m_hWnd); - m_useCtl3D = TRUE; - } -#endif + 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 != "") - { - float 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::compatibility_iterator 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::compatibility_iterator 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::compatibility_iterator 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(const 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(const WXHDC pDC, const WXHWND pWnd, const 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, const wxWindowID id, - const wxBitmap *bitmap, - const wxPoint& pos, - const wxSize& size, const long style, - const wxValidator& validator, - const wxString& name) -{ - SetName(name); - SetValidator(validator); - - if (parent) parent->AddChild(this); - SetBackgroundColour(parent->GetDefaultBackgroundColour()); - SetForegroundColour(parent->GetDefaultForegroundColour()); - - 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); -#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(const 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