X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/066f1b7a9580fc6c487efa753d61e3683de61407..8a31648287be0ef976f133de2786b137f1e98340:/src/msw/checkbox.cpp diff --git a/src/msw/checkbox.cpp b/src/msw/checkbox.cpp index dfc0c6baad..9e0aeede7f 100644 --- a/src/msw/checkbox.cpp +++ b/src/msw/checkbox.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: msw/checkbox.cpp +// Name: src/msw/checkbox.cpp // Purpose: wxCheckBox // Author: Julian Smart // Modified by: @@ -17,10 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ - #pragma implementation "checkbox.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -30,42 +26,68 @@ #if wxUSE_CHECKBOX +#include "wx/checkbox.h" + #ifndef WX_PRECOMP - #include "wx/checkbox.h" #include "wx/brush.h" + #include "wx/dcclient.h" #include "wx/dcscreen.h" #include "wx/settings.h" #endif -#include "wx/msw/private.h" +#include "wx/msw/dc.h" // for wxDCTemp +#include "wx/renderer.h" +#include "wx/msw/uxtheme.h" +#include "wx/msw/private/button.h" +#include "wx/msw/missing.h" -#ifndef BST_CHECKED - #define BST_CHECKED 0x0001 +// ---------------------------------------------------------------------------- +// constants +// ---------------------------------------------------------------------------- + +#ifndef BP_CHECKBOX + #define BP_CHECKBOX 3 #endif +// these values are defined in tmschema.h (except the first one) +enum +{ + CBS_INVALID, + CBS_UNCHECKEDNORMAL, + CBS_UNCHECKEDHOT, + CBS_UNCHECKEDPRESSED, + CBS_UNCHECKEDDISABLED, + CBS_CHECKEDNORMAL, + CBS_CHECKEDHOT, + CBS_CHECKEDPRESSED, + CBS_CHECKEDDISABLED, + CBS_MIXEDNORMAL, + CBS_MIXEDHOT, + CBS_MIXEDPRESSED, + CBS_MIXEDDISABLED +}; + +// these are our own +enum +{ + CBS_HOT_OFFSET = 1, + CBS_PRESSED_OFFSET = 2, + CBS_DISABLED_OFFSET = 3 +}; + // ============================================================================ // implementation // ============================================================================ -IMPLEMENT_DYNAMIC_CLASS(wxCheckBox, wxControl) - -/* -TODO PROPERTIES : - -bool "checked" , 0 -*/ - // ---------------------------------------------------------------------------- -// wxCheckBox +// wxCheckBox creation // ---------------------------------------------------------------------------- -bool wxCheckBox::MSWCommand(WXUINT WXUNUSED(param), WXWORD WXUNUSED(id)) +void wxCheckBox::Init() { - wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, m_windowId); - event.SetInt(GetValue()); - event.SetEventObject(this); - ProcessCommand(event); - return TRUE; + m_state = wxCHK_UNCHECKED; + m_isPressed = + m_isHot = false; } bool wxCheckBox::Create(wxWindow *parent, @@ -76,20 +98,32 @@ bool wxCheckBox::Create(wxWindow *parent, const wxValidator& validator, const wxString& name) { + Init(); + + WXValidateStyle(&style); if ( !CreateControl(parent, id, pos, size, style, validator, name) ) - return FALSE; + return false; + + long msStyle = WS_TABSTOP; + + if ( style & wxCHK_3STATE ) + msStyle |= BS_3STATE; + else + msStyle |= BS_CHECKBOX; - long msStyle = BS_AUTOCHECKBOX | WS_TABSTOP; if ( style & wxALIGN_RIGHT ) - msStyle |= BS_LEFTTEXT; + { + msStyle |= BS_LEFTTEXT | BS_RIGHT; + } + + msStyle |= wxMSWButton::GetMultilineStyle(label); return MSWCreateControl(wxT("BUTTON"), msStyle, pos, size, label, 0); } -void wxCheckBox::SetLabel(const wxString& label) -{ - SetWindowText(GetHwnd(), label); -} +// ---------------------------------------------------------------------------- +// wxCheckBox geometry +// ---------------------------------------------------------------------------- wxSize wxCheckBox::DoGetBestSize() const { @@ -106,11 +140,26 @@ wxSize wxCheckBox::DoGetBestSize() const wxString str = wxGetWindowText(GetHWND()); int wCheckbox, hCheckbox; - if ( !str.IsEmpty() ) + if ( !str.empty() ) { - GetTextExtent(str, &wCheckbox, &hCheckbox); + wxClientDC dc(const_cast(this)); + dc.SetFont(GetFont()); + dc.GetMultiLineTextExtent(GetLabelText(str), &wCheckbox, &hCheckbox); wCheckbox += s_checkSize + GetCharWidth(); + if ( ::GetWindowLong(GetHwnd(), GWL_STYLE) & BS_MULTILINE ) + { + // We need to make the checkbox even wider in this case because + // otherwise it wraps lines automatically and not only on "\n"s as + // we need and this makes the size computed here wrong resulting in + // checkbox contents being truncated when it's actually displayed. + // Without this hack simple checkbox with "Some thing\n and more" + // label appears on 3 lines, not 2, under Windows 2003 using + // classic look and feel (although it works fine under Windows 7, + // with or without themes). + wCheckbox += s_checkSize; + } + if ( hCheckbox < s_checkSize ) hCheckbox = s_checkSize; } @@ -119,24 +168,314 @@ wxSize wxCheckBox::DoGetBestSize() const wCheckbox = s_checkSize; hCheckbox = s_checkSize; } +#ifdef __WXWINCE__ + hCheckbox += 1; +#endif + + wxSize best(wCheckbox, hCheckbox); + CacheBestSize(best); + return best; +} + +// ---------------------------------------------------------------------------- +// wxCheckBox operations +// ---------------------------------------------------------------------------- - return wxSize(wCheckbox, hCheckbox); +void wxCheckBox::SetLabel(const wxString& label) +{ + wxMSWButton::UpdateMultilineStyle(GetHwnd(), label); + + wxCheckBoxBase::SetLabel(label); } void wxCheckBox::SetValue(bool val) { - SendMessage(GetHwnd(), BM_SETCHECK, val, 0); + Set3StateValue(val ? wxCHK_CHECKED : wxCHK_UNCHECKED); } bool wxCheckBox::GetValue() const { - return (SendMessage(GetHwnd(), BM_GETCHECK, 0, 0) & BST_CHECKED) != 0; + return Get3StateValue() != wxCHK_UNCHECKED; } void wxCheckBox::Command(wxCommandEvent& event) { - SetValue(event.GetInt() != 0); + int state = event.GetInt(); + wxCHECK_RET( (state == wxCHK_UNCHECKED) || (state == wxCHK_CHECKED) + || (state == wxCHK_UNDETERMINED), + wxT("event.GetInt() returned an invalid checkbox state") ); + + Set3StateValue((wxCheckBoxState) state); ProcessCommand(event); } +wxCOMPILE_TIME_ASSERT(wxCHK_UNCHECKED == BST_UNCHECKED + && wxCHK_CHECKED == BST_CHECKED + && wxCHK_UNDETERMINED == BST_INDETERMINATE, EnumValuesIncorrect); + +void wxCheckBox::DoSet3StateValue(wxCheckBoxState state) +{ + m_state = state; + if ( !IsOwnerDrawn() ) + ::SendMessage(GetHwnd(), BM_SETCHECK, (WPARAM) state, 0); + else // owner drawn buttons don't react to this message + Refresh(); +} + +wxCheckBoxState wxCheckBox::DoGet3StateValue() const +{ + return m_state; +} + +bool wxCheckBox::MSWCommand(WXUINT cmd, WXWORD WXUNUSED(id)) +{ + if ( cmd != BN_CLICKED && cmd != BN_DBLCLK ) + return false; + + // first update the value so that user event handler gets the new checkbox + // value + + // ownerdrawn buttons don't manage their state themselves unlike usual + // auto checkboxes so do it ourselves in any case + wxCheckBoxState state; + if ( Is3rdStateAllowedForUser() ) + { + state = (wxCheckBoxState)((m_state + 1) % 3); + } + else // 2 state checkbox (at least from users point of view) + { + // note that wxCHK_UNDETERMINED also becomes unchecked when clicked + state = m_state == wxCHK_UNCHECKED ? wxCHK_CHECKED : wxCHK_UNCHECKED; + } + + DoSet3StateValue(state); + + + // generate the event + wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, m_windowId); + + event.SetInt(state); + event.SetEventObject(this); + ProcessCommand(event); + + return true; +} + +// ---------------------------------------------------------------------------- +// owner drawn checkboxes stuff +// ---------------------------------------------------------------------------- + +bool wxCheckBox::SetForegroundColour(const wxColour& colour) +{ + if ( !wxCheckBoxBase::SetForegroundColour(colour) ) + return false; + + // the only way to change the checkbox foreground colour under Windows XP + // is to owner draw it + if ( wxUxThemeEngine::GetIfActive() ) + MakeOwnerDrawn(colour.IsOk()); + + return true; +} + +bool wxCheckBox::IsOwnerDrawn() const +{ + return + (::GetWindowLong(GetHwnd(), GWL_STYLE) & BS_OWNERDRAW) == BS_OWNERDRAW; +} + +void wxCheckBox::MakeOwnerDrawn(bool ownerDrawn) +{ + long style = ::GetWindowLong(GetHwnd(), GWL_STYLE); + + // note that BS_CHECKBOX & BS_OWNERDRAW != 0 so we can't operate on + // them as on independent style bits + if ( ownerDrawn ) + { + style &= ~(BS_CHECKBOX | BS_3STATE); + style |= BS_OWNERDRAW; + + Connect(wxEVT_ENTER_WINDOW, + wxMouseEventHandler(wxCheckBox::OnMouseEnterOrLeave)); + Connect(wxEVT_LEAVE_WINDOW, + wxMouseEventHandler(wxCheckBox::OnMouseEnterOrLeave)); + Connect(wxEVT_LEFT_DOWN, wxMouseEventHandler(wxCheckBox::OnMouseLeft)); + Connect(wxEVT_LEFT_UP, wxMouseEventHandler(wxCheckBox::OnMouseLeft)); + Connect(wxEVT_SET_FOCUS, wxFocusEventHandler(wxCheckBox::OnFocus)); + Connect(wxEVT_KILL_FOCUS, wxFocusEventHandler(wxCheckBox::OnFocus)); + } + else // reset to default colour + { + style &= ~BS_OWNERDRAW; + style |= HasFlag(wxCHK_3STATE) ? BS_3STATE : BS_CHECKBOX; + + Disconnect(wxEVT_ENTER_WINDOW, + wxMouseEventHandler(wxCheckBox::OnMouseEnterOrLeave)); + Disconnect(wxEVT_LEAVE_WINDOW, + wxMouseEventHandler(wxCheckBox::OnMouseEnterOrLeave)); + Disconnect(wxEVT_LEFT_DOWN, wxMouseEventHandler(wxCheckBox::OnMouseLeft)); + Disconnect(wxEVT_LEFT_UP, wxMouseEventHandler(wxCheckBox::OnMouseLeft)); + Disconnect(wxEVT_SET_FOCUS, wxFocusEventHandler(wxCheckBox::OnFocus)); + Disconnect(wxEVT_KILL_FOCUS, wxFocusEventHandler(wxCheckBox::OnFocus)); + } + + ::SetWindowLong(GetHwnd(), GWL_STYLE, style); + + if ( !ownerDrawn ) + { + // ensure that controls state is consistent with internal state + DoSet3StateValue(m_state); + } +} + +void wxCheckBox::OnMouseEnterOrLeave(wxMouseEvent& event) +{ + m_isHot = event.GetEventType() == wxEVT_ENTER_WINDOW; + if ( !m_isHot ) + m_isPressed = false; + + Refresh(); + + event.Skip(); +} + +void wxCheckBox::OnMouseLeft(wxMouseEvent& event) +{ + // TODO: we should capture the mouse here to be notified about left up + // event but this interferes with BN_CLICKED generation so if we + // want to do this we'd need to generate them ourselves + m_isPressed = event.GetEventType() == wxEVT_LEFT_DOWN; + Refresh(); + + event.Skip(); +} + +void wxCheckBox::OnFocus(wxFocusEvent& event) +{ + Refresh(); + + event.Skip(); +} + +bool wxCheckBox::MSWOnDraw(WXDRAWITEMSTRUCT *item) +{ + DRAWITEMSTRUCT *dis = (DRAWITEMSTRUCT *)item; + + if ( !IsOwnerDrawn() || dis->CtlType != ODT_BUTTON ) + return wxCheckBoxBase::MSWOnDraw(item); + + // calculate the rectangles for the check mark itself and the label + HDC hdc = dis->hDC; + RECT& rect = dis->rcItem; + RECT rectCheck, + rectLabel; + rectCheck.top = + rectLabel.top = rect.top; + rectCheck.bottom = + rectLabel.bottom = rect.bottom; + const int checkSize = GetBestSize().y; + const int MARGIN = 3; + + const bool isRightAligned = HasFlag(wxALIGN_RIGHT); + if ( isRightAligned ) + { + rectCheck.right = rect.right; + rectCheck.left = rectCheck.right - checkSize; + + rectLabel.right = rectCheck.left - MARGIN; + rectLabel.left = rect.left; + } + else // normal, left-aligned checkbox + { + rectCheck.left = rect.left; + rectCheck.right = rectCheck.left + checkSize; + + rectLabel.left = rectCheck.right + MARGIN; + rectLabel.right = rect.right; + } + + // show we draw a focus rect? + const bool isFocused = m_isPressed || FindFocus() == this; + + + // draw the checkbox itself + wxDCTemp dc(hdc); + + int flags = 0; + if ( !IsEnabled() ) + flags |= wxCONTROL_DISABLED; + switch ( Get3StateValue() ) + { + case wxCHK_CHECKED: + flags |= wxCONTROL_CHECKED; + break; + + case wxCHK_UNDETERMINED: + flags |= wxCONTROL_PRESSED; + break; + + default: + wxFAIL_MSG( wxT("unexpected Get3StateValue() return value") ); + // fall through + + case wxCHK_UNCHECKED: + // no extra styles needed + break; + } + + if ( wxFindWindowAtPoint(wxGetMousePosition()) == this ) + flags |= wxCONTROL_CURRENT; + + wxRendererNative::Get(). + DrawCheckBox(this, dc, wxRectFromRECT(rectCheck), flags); + + // draw the text + const wxString& label = GetLabel(); + + // first we need to measure it + UINT fmt = DT_NOCLIP; + + // drawing underlying doesn't look well with focus rect (and the native + // control doesn't do it) + if ( isFocused ) + fmt |= DT_HIDEPREFIX; + if ( isRightAligned ) + fmt |= DT_RIGHT; + // TODO: also use DT_HIDEPREFIX if the system is configured so + + // we need to get the label real size first if we have to draw a focus rect + // around it + if ( isFocused ) + { + if ( !::DrawText(hdc, label.wx_str(), label.length(), &rectLabel, + fmt | DT_CALCRECT) ) + { + wxLogLastError(wxT("DrawText(DT_CALCRECT)")); + } + } + + if ( !IsEnabled() ) + { + ::SetTextColor(hdc, ::GetSysColor(COLOR_GRAYTEXT)); + } + + if ( !::DrawText(hdc, label.wx_str(), label.length(), &rectLabel, fmt) ) + { + wxLogLastError(wxT("DrawText()")); + } + + // finally draw the focus + if ( isFocused ) + { + rectLabel.left--; + rectLabel.right++; + if ( !::DrawFocusRect(hdc, &rectLabel) ) + { + wxLogLastError(wxT("DrawFocusRect()")); + } + } + + return true; +} + #endif // wxUSE_CHECKBOX