X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6c20e8f816b21b911e3a8ed8197c21df6ce726d6..1c3e52af4b9f940848edd92caf2ddffc3d6aff64:/src/msw/button.cpp diff --git a/src/msw/button.cpp b/src/msw/button.cpp index 0729c9eea0..893dd88301 100644 --- a/src/msw/button.cpp +++ b/src/msw/button.cpp @@ -36,11 +36,12 @@ #include "wx/settings.h" #include "wx/dcscreen.h" #include "wx/dcclient.h" + #include "wx/toplevel.h" #endif #include "wx/stockitem.h" -#include "wx/tokenzr.h" #include "wx/msw/private.h" +#include "wx/msw/private/button.h" #if wxUSE_UXTHEME #include "wx/msw/uxtheme.h" @@ -136,14 +137,61 @@ wxCONSTRUCTOR_6( wxButton , wxWindow* , Parent , wxWindowID , Id , wxString , La IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl) #endif -// this macro tries to adjust the default button height to a reasonable value -// using the char height as the base -#define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10) - // ============================================================================ // implementation // ============================================================================ +// ---------------------------------------------------------------------------- +// helper functions from wx/msw/private/button.h +// ---------------------------------------------------------------------------- + +void wxMSWButton::UpdateMultilineStyle(HWND hwnd, const wxString& label) +{ + // update BS_MULTILINE style depending on the new label (resetting it + // doesn't seem to do anything very useful but it shouldn't hurt and we do + // have to set it whenever the label becomes multi line as otherwise it + // wouldn't be shown correctly as we don't use BS_MULTILINE when creating + // the control unless it already has new lines in its label) + long styleOld = ::GetWindowLong(hwnd, GWL_STYLE), + styleNew; + if ( label.find(_T('\n')) != wxString::npos ) + styleNew = styleOld | BS_MULTILINE; + else + styleNew = styleOld & ~BS_MULTILINE; + + if ( styleNew != styleOld ) + ::SetWindowLong(hwnd, GWL_STYLE, styleNew); +} + +wxSize wxMSWButton::ComputeBestSize(wxControl *btn) +{ + wxClientDC dc(btn); + + wxCoord wBtn, + hBtn; + dc.GetMultiLineTextExtent(btn->GetLabelText(), &wBtn, &hBtn); + + // FIXME: this is pure guesswork, need to retrieve the real button margins + wBtn += 3*btn->GetCharWidth(); + hBtn = 11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(hBtn)/10; + + // all buttons have at least the standard size unless the user explicitly + // wants them to be of smaller size and used wxBU_EXACTFIT style when + // creating the button + if ( !btn->HasFlag(wxBU_EXACTFIT) ) + { + wxSize sz = wxButton::GetDefaultSize(); + if ( wBtn < sz.x ) + wBtn = sz.x; + if ( hBtn < sz.y ) + hBtn = sz.y; + } + + wxSize best(wBtn, hBtn); + btn->CacheBestSize(best); + return best; +} + // ---------------------------------------------------------------------------- // creation/destruction // ---------------------------------------------------------------------------- @@ -160,16 +208,14 @@ bool wxButton::Create(wxWindow *parent, wxString label(lbl); if (label.empty() && wxIsStockID(id)) { - // On Windows, some buttons aren't supposed to have - // mnemonics, so strip them out. - - label = wxGetStockLabel(id -#if defined(__WXMSW__) || defined(__WXWINCE__) - , ( id != wxID_OK && - id != wxID_CANCEL && - id != wxID_CLOSE ) -#endif - ); + // On Windows, some buttons aren't supposed to have mnemonics + label = wxGetStockLabel + ( + id, + id == wxID_OK || id == wxID_CANCEL || id == wxID_CLOSE + ? wxSTOCK_NOFLAGS + : wxSTOCK_WITH_MNEMONIC + ); } if ( !CreateControl(parent, id, pos, size, style, validator, name) ) @@ -178,19 +224,13 @@ bool wxButton::Create(wxWindow *parent, WXDWORD exstyle; WXDWORD msStyle = MSWGetStyle(style, &exstyle); -#ifdef __WIN32__ // if the label contains several lines we must explicitly tell the button // about it or it wouldn't draw it correctly ("\n"s would just appear as // black boxes) // // NB: we do it here and not in MSWGetStyle() because we need the label - // value and m_label is not set yet when MSWGetStyle() is called; - // besides changing BS_MULTILINE during run-time is pointless anyhow - if ( label.find(_T('\n')) != wxString::npos ) - { - msStyle |= BS_MULTILINE; - } -#endif // __WIN32__ + // value and the label is not set yet when MSWGetStyle() is called + msStyle |= wxMSWButton::GetMultilineStyle(label); return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle); } @@ -221,7 +261,6 @@ WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const // the bottom msStyle |= WS_CLIPSIBLINGS; -#ifdef __WIN32__ // don't use "else if" here: weird as it is, but you may combine wxBU_LEFT // and wxBU_RIGHT to get BS_CENTER! if ( style & wxBU_LEFT ) @@ -237,45 +276,24 @@ WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const if ( style & wxNO_BORDER ) msStyle |= BS_FLAT; #endif // __WXWINCE__ -#endif // __WIN32__ return msStyle; } +void wxButton::SetLabel(const wxString& label) +{ + wxMSWButton::UpdateMultilineStyle(GetHwnd(), label); + + wxButtonBase::SetLabel(label); +} + // ---------------------------------------------------------------------------- // size management including autosizing // ---------------------------------------------------------------------------- wxSize wxButton::DoGetBestSize() const { - wxClientDC dc(wx_const_cast(wxButton *, this)); - dc.SetFont(GetFont()); - - wxCoord wBtn, - hBtn; - dc.GetMultiLineTextExtent(wxStripMenuCodes(GetLabel()), &wBtn, &hBtn); - - // add a margin -- the button is wider than just its label - wBtn += 3*GetCharWidth(); - hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hBtn); - - // all buttons have at least the standard size unless the user explicitly - // wants them to be of smaller size and used wxBU_EXACTFIT style when - // creating the button - if ( !HasFlag(wxBU_EXACTFIT) ) - { - wxSize sz = GetDefaultSize(); - if (wBtn > sz.x) - sz.x = wBtn; - if (hBtn > sz.y) - sz.y = hBtn; - - return sz; - } - - wxSize best(wBtn, hBtn); - CacheBestSize(best); - return best; + return wxMSWButton::ComputeBestSize(wx_const_cast(wxButton *, this)); } /* static */ @@ -342,26 +360,52 @@ wxSize wxButtonBase::GetDefaultSize() */ // set this button as the (permanently) default one in its panel -void wxButton::SetDefault() +wxWindow *wxButton::SetDefault() { - wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); - - wxCHECK_RET( tlw, _T("button without top level window?") ); - // set this one as the default button both for wxWidgets ... - wxWindow *winOldDefault = tlw->SetDefaultItem(this); + wxWindow *winOldDefault = wxButtonBase::SetDefault(); // ... and Windows SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), false); SetDefaultStyle(this, true); + + return winOldDefault; +} + +// return the top level parent window if it's not being deleted yet, otherwise +// return NULL +static wxTopLevelWindow *GetTLWParentIfNotBeingDeleted(wxWindow *win) +{ + for ( ;; ) + { + // IsTopLevel() will return false for a wxTLW being deleted, so we also + // need the parent test for this case + wxWindow * const parent = win->GetParent(); + if ( !parent || win->IsTopLevel() ) + { + if ( win->IsBeingDeleted() ) + return NULL; + + break; + } + + win = parent; + } + + wxASSERT_MSG( win, _T("button without top level parent?") ); + + wxTopLevelWindow * const tlw = wxDynamicCast(win, wxTopLevelWindow); + wxASSERT_MSG( tlw, _T("logic error in GetTLWParentIfNotBeingDeleted()") ); + + return tlw; } // set this button as being currently default void wxButton::SetTmpDefault() { - wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); - - wxCHECK_RET( tlw, _T("button without top level window?") ); + wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent()); + if ( !tlw ) + return; wxWindow *winOldDefault = tlw->GetDefaultItem(); tlw->SetTmpDefaultItem(this); @@ -373,9 +417,9 @@ void wxButton::SetTmpDefault() // unset this button as currently default, it may still stay permanent default void wxButton::UnsetTmpDefault() { - wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); - - wxCHECK_RET( tlw, _T("button without top level window?") ); + wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent()); + if ( !tlw ) + return; tlw->SetTmpDefaultItem(NULL); @@ -533,8 +577,6 @@ WXLRESULT wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) // owner-drawn buttons support // ---------------------------------------------------------------------------- -#ifdef __WIN32__ - // drawing helpers static void DrawButtonText(HDC hdc, @@ -552,7 +594,8 @@ static void DrawButtonText(HDC hdc, // first we need to compute its bounding rect RECT rc; ::CopyRect(&rc, pRect); - ::DrawText(hdc, text, text.length(), &rc, DT_CENTER | DT_CALCRECT); + ::DrawText(hdc, text.wx_str(), text.length(), &rc, + DT_CENTER | DT_CALCRECT); // now center this rect inside the entire button area const LONG w = rc.right - rc.left; @@ -562,12 +605,12 @@ static void DrawButtonText(HDC hdc, rc.top = (pRect->bottom - pRect->top)/2 - h/2; rc.bottom = rc.top+h; - ::DrawText(hdc, text, text.length(), &rc, DT_CENTER); + ::DrawText(hdc, text.wx_str(), text.length(), &rc, DT_CENTER); } else // single line label { // Note: we must have DT_SINGLELINE for DT_VCENTER to work. - ::DrawText(hdc, text, text.length(), pRect, + ::DrawText(hdc, text.wx_str(), text.length(), pRect, DT_SINGLELINE | DT_CENTER | DT_VCENTER); } @@ -848,15 +891,13 @@ bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis) } COLORREF colFg = wxColourToRGB(GetForegroundColour()); - DrawButtonText(hdc, &rectBtn, - (state & ODS_NOACCEL ? wxStripMenuCodes(GetLabel()) - : GetLabel()), - state & ODS_DISABLED ? GetSysColor(COLOR_GRAYTEXT) - : colFg); + if ( state & ODS_DISABLED ) colFg = GetSysColor(COLOR_GRAYTEXT) ; + wxString label = GetLabel(); + if ( state & ODS_NOACCEL ) label = GetLabelText() ; + DrawButtonText(hdc, &rectBtn, label, colFg); return true; } -#endif // __WIN32__ - #endif // wxUSE_BUTTON +