X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a63f2bec290ddf058718c8465a56c3ef421685eb..c12822fec7f87e7734cabbfcf23b99685fc371ce:/src/msw/button.cpp?ds=sidebyside diff --git a/src/msw/button.cpp b/src/msw/button.cpp index 86f833762c..ef43802277 100644 --- a/src/msw/button.cpp +++ b/src/msw/button.cpp @@ -1,12 +1,12 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: msw/button.cpp +// Name: src/msw/button.cpp // Purpose: wxButton // 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 ///////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -17,10 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ - #pragma implementation "button.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -28,124 +24,299 @@ #pragma hdrstop #endif +#if wxUSE_BUTTON + +#include "wx/button.h" + #ifndef WX_PRECOMP - #include "wx/button.h" + #include "wx/app.h" #include "wx/brush.h" #include "wx/panel.h" #include "wx/bmpbuttn.h" #include "wx/settings.h" #include "wx/dcscreen.h" + #include "wx/dcclient.h" + #include "wx/toplevel.h" #endif +#include "wx/stockitem.h" #include "wx/msw/private.h" +#include "wx/msw/private/button.h" + +#if wxUSE_UXTHEME + #include "wx/msw/uxtheme.h" + + // no need to include tmschema.h + #ifndef BP_PUSHBUTTON + #define BP_PUSHBUTTON 1 + + #define PBS_NORMAL 1 + #define PBS_HOT 2 + #define PBS_PRESSED 3 + #define PBS_DISABLED 4 + #define PBS_DEFAULTED 5 + + #define TMT_CONTENTMARGINS 3602 + #endif +#endif // wxUSE_UXTHEME + +#ifndef WM_THEMECHANGED + #define WM_THEMECHANGED 0x031A +#endif + +#ifndef ODS_NOACCEL + #define ODS_NOACCEL 0x0100 +#endif + +#ifndef ODS_NOFOCUSRECT + #define ODS_NOFOCUSRECT 0x0200 +#endif + +#ifndef DT_HIDEPREFIX + #define DT_HIDEPREFIX 0x00100000 +#endif // ---------------------------------------------------------------------------- // macros // ---------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl) +#if wxUSE_EXTENDED_RTTI + +WX_DEFINE_FLAGS( wxButtonStyle ) + +wxBEGIN_FLAGS( wxButtonStyle ) + // new style border flags, we put them first to + // use them for streaming out + wxFLAGS_MEMBER(wxBORDER_SIMPLE) + wxFLAGS_MEMBER(wxBORDER_SUNKEN) + wxFLAGS_MEMBER(wxBORDER_DOUBLE) + wxFLAGS_MEMBER(wxBORDER_RAISED) + wxFLAGS_MEMBER(wxBORDER_STATIC) + wxFLAGS_MEMBER(wxBORDER_NONE) + + // old style border flags + wxFLAGS_MEMBER(wxSIMPLE_BORDER) + wxFLAGS_MEMBER(wxSUNKEN_BORDER) + wxFLAGS_MEMBER(wxDOUBLE_BORDER) + wxFLAGS_MEMBER(wxRAISED_BORDER) + wxFLAGS_MEMBER(wxSTATIC_BORDER) + wxFLAGS_MEMBER(wxBORDER) + + // standard window styles + wxFLAGS_MEMBER(wxTAB_TRAVERSAL) + wxFLAGS_MEMBER(wxCLIP_CHILDREN) + wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW) + wxFLAGS_MEMBER(wxWANTS_CHARS) + wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE) + wxFLAGS_MEMBER(wxALWAYS_SHOW_SB ) + wxFLAGS_MEMBER(wxVSCROLL) + wxFLAGS_MEMBER(wxHSCROLL) + + wxFLAGS_MEMBER(wxBU_LEFT) + wxFLAGS_MEMBER(wxBU_RIGHT) + wxFLAGS_MEMBER(wxBU_TOP) + wxFLAGS_MEMBER(wxBU_BOTTOM) + wxFLAGS_MEMBER(wxBU_EXACTFIT) +wxEND_FLAGS( wxButtonStyle ) -// 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) +IMPLEMENT_DYNAMIC_CLASS_XTI(wxButton, wxControl,"wx/button.h") + +wxBEGIN_PROPERTIES_TABLE(wxButton) + wxEVENT_PROPERTY( Click , wxEVT_COMMAND_BUTTON_CLICKED , wxCommandEvent) + + wxPROPERTY( Font , wxFont , SetFont , GetFont , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group")) + wxPROPERTY( Label, wxString , SetLabel, GetLabel, wxString(), 0 /*flags*/ , wxT("Helpstring") , wxT("group") ) + + wxPROPERTY_FLAGS( WindowStyle , wxButtonStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style + +wxEND_PROPERTIES_TABLE() + +wxBEGIN_HANDLERS_TABLE(wxButton) +wxEND_HANDLERS_TABLE() + +wxCONSTRUCTOR_6( wxButton , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle ) + + +#else +IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl) +#endif // ============================================================================ // 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::GetFittingSize(wxWindow *win, const wxSize& sizeLabel) +{ + // FIXME: this is pure guesswork, need to retrieve the real button margins + wxSize sizeBtn = sizeLabel; + + sizeBtn.x += 3*win->GetCharWidth(); + sizeBtn.y = 11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(sizeLabel.y)/10; + + return sizeBtn; +} + +wxSize wxMSWButton::ComputeBestSize(wxControl *btn) +{ + wxClientDC dc(btn); + + wxSize sizeBtn; + dc.GetMultiLineTextExtent(btn->GetLabelText(), &sizeBtn.x, &sizeBtn.y); + + sizeBtn = GetFittingSize(btn, sizeBtn); + + // 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 sizeDef = wxButton::GetDefaultSize(); + if ( sizeBtn.x < sizeDef.x ) + sizeBtn.x = sizeDef.x; + if ( sizeBtn.y < sizeDef.y ) + sizeBtn.y = sizeDef.y; + } + + btn->CacheBestSize(sizeBtn); + + return sizeBtn; +} + // ---------------------------------------------------------------------------- // creation/destruction // ---------------------------------------------------------------------------- bool wxButton::Create(wxWindow *parent, wxWindowID id, - const wxString& label, + const wxString& lbl, const wxPoint& pos, const wxSize& size, long style, const wxValidator& validator, const wxString& name) { - if ( !CreateBase(parent, id, pos, size, style, validator, name) ) - return FALSE; - - parent->AddChild((wxButton *)this); - - m_backgroundColour = parent->GetBackgroundColour(); - m_foregroundColour = parent->GetForegroundColour(); - - - m_hWnd = (WXHWND)CreateWindowEx - ( - MakeExtendedStyle(m_windowStyle), - wxT("BUTTON"), - label, - WS_VISIBLE | WS_TABSTOP | WS_CHILD, - 0, 0, 0, 0, - GetWinHwnd(parent), - (HMENU)m_windowId, - wxGetInstance(), - NULL - ); + wxString label(lbl); + if (label.empty() && wxIsStockID(id)) + { + // 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 + ); + } - // Subclass again for purposes of dialog editing mode - SubclassWin(m_hWnd); + if ( !CreateControl(parent, id, pos, size, style, validator, name) ) + return false; - SetFont(parent->GetFont()); + WXDWORD exstyle; + WXDWORD msStyle = MSWGetStyle(style, &exstyle); - SetSize(pos.x, pos.y, size.x, size.y); + // 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 the label is not set yet when MSWGetStyle() is called + msStyle |= wxMSWButton::GetMultilineStyle(label); - return TRUE; + return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle); } wxButton::~wxButton() { - wxPanel *panel = wxDynamicCast(GetParent(), wxPanel); - if ( panel ) + wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); + if ( tlw && tlw->GetTmpDefaultItem() == this ) { - if ( panel->GetDefaultItem() == this ) - { - // don't leave the panel with invalid default item - panel->SetDefaultItem(NULL); - } + UnsetTmpDefault(); } } // ---------------------------------------------------------------------------- -// size management including autosizing +// flags // ---------------------------------------------------------------------------- -wxSize wxButton::DoGetBestSize() const +WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const { - wxString label = wxGetWindowText(GetHWND()); - int wBtn; - GetTextExtent(label, &wBtn, NULL); - - int wChar, hChar; - wxGetCharSize(GetHWND(), &wChar, &hChar, &GetFont()); + // buttons never have an external border, they draw their own one + WXDWORD msStyle = wxControl::MSWGetStyle + ( + (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle + ); + + // we must use WS_CLIPSIBLINGS with the buttons or they would draw over + // each other in any resizeable dialog which has more than one button in + // the bottom + msStyle |= WS_CLIPSIBLINGS; + + // 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 ) + msStyle |= BS_LEFT; + if ( style & wxBU_RIGHT ) + msStyle |= BS_RIGHT; + if ( style & wxBU_TOP ) + msStyle |= BS_TOP; + if ( style & wxBU_BOTTOM ) + msStyle |= BS_BOTTOM; +#ifndef __WXWINCE__ + // flat 2d buttons + if ( style & wxNO_BORDER ) + msStyle |= BS_FLAT; +#endif // __WXWINCE__ + + return msStyle; +} - // add a margin - the button is wider than just its label - wBtn += 3*wChar; +void wxButton::SetLabel(const wxString& label) +{ + wxMSWButton::UpdateMultilineStyle(GetHwnd(), label); - // the button height is proportional to the height of the font used - int hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar); + wxButtonBase::SetLabel(label); +} - wxSize sz = GetDefaultSize(); - if (wBtn > sz.x) sz.x = wBtn; - if (hBtn > sz.y) sz.y = hBtn; +// ---------------------------------------------------------------------------- +// size management including autosizing +// ---------------------------------------------------------------------------- - return sz; +wxSize wxButton::DoGetBestSize() const +{ + return wxMSWButton::ComputeBestSize(const_cast(this)); } /* static */ -wxSize wxButton::GetDefaultSize() +wxSize wxButtonBase::GetDefaultSize() { static wxSize s_sizeBtn; if ( s_sizeBtn.x == 0 ) { wxScreenDC dc; - dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT)); + dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); // the size of a standard button in the dialog units is 50x14, // translate this to pixels @@ -163,52 +334,161 @@ wxSize wxButton::GetDefaultSize() } // ---------------------------------------------------------------------------- -// set this button as the default one in its panel +// default button handling // ---------------------------------------------------------------------------- -void wxButton::SetDefault() +/* + "Everything you ever wanted to know about the default buttons" or "Why do we + have to do all this?" + + In MSW the default button should be activated when the user presses Enter + and the current control doesn't process Enter itself somehow. This is + handled by ::DefWindowProc() (or maybe ::DefDialogProc()) using DM_SETDEFID + Another aspect of "defaultness" is that the default button has different + appearance: this is due to BS_DEFPUSHBUTTON style which is completely + separate from DM_SETDEFID stuff (!). Also note that BS_DEFPUSHBUTTON should + be unset if our parent window is not active so it should be unset whenever + we lose activation and set back when we regain it. + + Final complication is that when a button is active, it should be the default + one, i.e. pressing Enter on a button always activates it and not another + one. + + We handle this by maintaining a permanent and a temporary default items in + wxControlContainer (both may be NULL). When a button becomes the current + control (i.e. gets focus) it sets itself as the temporary default which + ensures that it has the right appearance and that Enter will be redirected + to it. When the button loses focus, it unsets the temporary default and so + the default item will be the permanent default -- that is the default button + if any had been set or none otherwise, which is just what we want. + + NB: all this is quite complicated by now and the worst is that normally + it shouldn't be necessary at all as for the normal Windows programs + DefWindowProc() and IsDialogMessage() take care of all this + automatically -- however in wxWidgets programs this doesn't work for + nested hierarchies (i.e. a notebook inside a notebook) for unknown + reason and so we have to reproduce all this code ourselves. It would be + very nice if we could avoid doing it. + */ + +// set this button as the (permanently) default one in its panel +wxWindow *wxButton::SetDefault() +{ + // set this one as the default button both for wxWidgets ... + 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) { - wxWindow *parent = GetParent(); - wxButton *btnOldDefault = NULL; - wxPanel *panel = wxDynamicCast(parent, wxPanel); - if ( panel ) + for ( ;; ) { - btnOldDefault = panel->GetDefaultItem(); - panel->SetDefaultItem(this); + // 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; } - if ( 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 * const tlw = GetTLWParentIfNotBeingDeleted(GetParent()); + if ( !tlw ) + return; + + wxWindow *winOldDefault = tlw->GetDefaultItem(); + tlw->SetTmpDefaultItem(this); + + SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), false); + SetDefaultStyle(this, true); +} + +// unset this button as currently default, it may still stay permanent default +void wxButton::UnsetTmpDefault() +{ + wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent()); + if ( !tlw ) + return; + + tlw->SetTmpDefaultItem(NULL); + + wxWindow *winOldDefault = tlw->GetDefaultItem(); + + SetDefaultStyle(this, false); + SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), true); +} + +/* static */ +void +wxButton::SetDefaultStyle(wxButton *btn, bool on) +{ + // we may be called with NULL pointer -- simpler to do the check here than + // in the caller which does wxDynamicCast() + if ( !btn ) + return; + + // first, let DefDlgProc() know about the new default button + if ( on ) { - SendMessage(GetWinHwnd(parent), DM_SETDEFID, m_windowId, 0L); + // we shouldn't set BS_DEFPUSHBUTTON for any button if we don't have + // focus at all any more + if ( !wxTheApp->IsActive() ) + return; + + wxWindow * const tlw = wxGetTopLevelParent(btn); + wxCHECK_RET( tlw, _T("button without top level window?") ); + + ::SendMessage(GetHwndOf(tlw), DM_SETDEFID, btn->GetId(), 0L); + + // sending DM_SETDEFID also changes the button style to + // BS_DEFPUSHBUTTON so there is nothing more to do } - if ( btnOldDefault ) + // then also change the style as needed + long style = ::GetWindowLong(GetHwndOf(btn), GWL_STYLE); + if ( !(style & BS_DEFPUSHBUTTON) == on ) { - // remove the BS_DEFPUSHBUTTON style from the other button - long style = GetWindowLong(GetHwndOf(btnOldDefault), GWL_STYLE); - - // don't do it with the owner drawn buttons because it will reset - // BS_OWNERDRAW style bit too (BS_OWNERDRAW & BS_DEFPUSHBUTTON != 0)! + // don't do it with the owner drawn buttons because it will + // reset BS_OWNERDRAW style bit too (as BS_OWNERDRAW & + // BS_DEFPUSHBUTTON != 0)! if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW ) { - style &= ~BS_DEFPUSHBUTTON; - SendMessage(GetHwndOf(btnOldDefault), BM_SETSTYLE, style, 1L); + ::SendMessage(GetHwndOf(btn), BM_SETSTYLE, + on ? style | BS_DEFPUSHBUTTON + : style & ~BS_DEFPUSHBUTTON, + 1L /* redraw */); } - else + else // owner drawn { - // redraw the button - it will notice itself that it's not the - // default one any longer - btnOldDefault->Refresh(); + // redraw the button - it will notice itself that it's + // [not] the default one [any longer] + btn->Refresh(); } } - - // set this button as the default - long style = GetWindowLong(GetHwnd(), GWL_STYLE); - if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW ) - { - style |= BS_DEFPUSHBUTTON; - SendMessage(GetHwnd(), BM_SETSTYLE, style, 1L); - } + //else: already has correct style } // ---------------------------------------------------------------------------- @@ -232,13 +512,23 @@ void wxButton::Command(wxCommandEvent & event) // event/message handlers // ---------------------------------------------------------------------------- -bool wxButton::MSWCommand(WXUINT param, WXWORD id) +bool wxButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) { - bool processed = FALSE; + bool processed = false; switch ( param ) { - case 1: // means that the message came from an accelerator - case BN_CLICKED: + // NOTE: Apparently older versions (NT 4?) of the common controls send + // BN_DOUBLECLICKED but not a second BN_CLICKED for owner-drawn + // buttons, so in order to send two EVT_BUTTON events we should + // catch both types. Currently (Feb 2003) up-to-date versions of + // win98, win2k and winXP all send two BN_CLICKED messages for + // all button types, so we don't catch BN_DOUBLECLICKED anymore + // in order to not get 3 EVT_BUTTON events. If this is a problem + // then we need to figure out which version of the comctl32 changed + // this behaviour and test for it. + + case 1: // message came from an accelerator + case BN_CLICKED: // normal buttons send this processed = SendClickEvent(); break; } @@ -246,16 +536,50 @@ bool wxButton::MSWCommand(WXUINT param, WXWORD id) return processed; } -long wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) +WXLRESULT wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) { - // when we receive focus, we want to become the default button in our - // parent panel + // when we receive focus, we want to temporarily become the default button in + // our parent panel so that pressing "Enter" would activate us -- and when + // losing it we should restore the previous default button as well if ( nMsg == WM_SETFOCUS ) { - SetDefault(); + SetTmpDefault(); - // let the default processign take place too + // let the default processing take place too } + else if ( nMsg == WM_KILLFOCUS ) + { + UnsetTmpDefault(); + } + else if ( nMsg == WM_LBUTTONDBLCLK ) + { + // emulate a click event to force an owner-drawn button to change its + // appearance - without this, it won't do it + (void)wxControl::MSWWindowProc(WM_LBUTTONDOWN, wParam, lParam); + + // and continue with processing the message normally as well + } +#if wxUSE_UXTHEME + else if ( nMsg == WM_THEMECHANGED ) + { + // need to recalculate the best size here + // as the theme size might have changed + InvalidateBestSize(); + } + else if ( wxUxThemeEngine::GetIfActive() ) + { + // we need to Refresh() if mouse has entered or left window + // so we can update the hot tracking state + // must use m_mouseInWindow here instead of IsMouseInWindow() + // since we need to know the first time the mouse enters the window + // and IsMouseInWindow() would return true in this case + if ( ( nMsg == WM_MOUSEMOVE && !m_mouseInWindow ) || + nMsg == WM_MOUSELEAVE ) + { + Refresh(); + } + } +#endif // wxUSE_UXTHEME // let the base class do all real processing return wxControl::MSWWindowProc(nMsg, wParam, lParam); @@ -265,20 +589,47 @@ long wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) // owner-drawn buttons support // ---------------------------------------------------------------------------- -#ifdef __WIN32__ - // drawing helpers static void DrawButtonText(HDC hdc, RECT *pRect, const wxString& text, - COLORREF col) + COLORREF col, + int flags) { COLORREF colOld = SetTextColor(hdc, col); int modeOld = SetBkMode(hdc, TRANSPARENT); - DrawText(hdc, text, text.length(), pRect, - DT_CENTER | DT_VCENTER | DT_SINGLELINE); + // center text horizontally in any case + flags |= DT_CENTER; + + if ( text.find(_T('\n')) != wxString::npos ) + { + // draw multiline label + + // first we need to compute its bounding rect + RECT rc; + ::CopyRect(&rc, pRect); + ::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; + const LONG h = rc.bottom - rc.top; + rc.left = (pRect->right - pRect->left)/2 - w/2; + rc.right = rc.left+w; + rc.top = (pRect->bottom - pRect->top)/2 - h/2; + rc.bottom = rc.top+h; + + ::DrawText(hdc, text.wx_str(), text.length(), &rc, flags); + } + else // single line label + { + // centre text vertically too (notice that we must have DT_SINGLELINE + // for DT_VCENTER to work) + ::DrawText(hdc, text.wx_str(), text.length(), pRect, + flags | DT_SINGLELINE | DT_VCENTER); + } SetBkMode(hdc, modeOld); SetTextColor(hdc, colOld); @@ -286,11 +637,10 @@ static void DrawButtonText(HDC hdc, static void DrawRect(HDC hdc, const RECT& r) { - MoveToEx(hdc, r.left, r.top, NULL); - LineTo(hdc, r.right, r.top); - LineTo(hdc, r.right, r.bottom); - LineTo(hdc, r.left, r.bottom); - LineTo(hdc, r.left, r.top); + wxDrawLine(hdc, r.left, r.top, r.right, r.top); + wxDrawLine(hdc, r.right, r.top, r.right, r.bottom); + wxDrawLine(hdc, r.right, r.bottom, r.left, r.bottom); + wxDrawLine(hdc, r.left, r.bottom, r.left, r.top); } void wxButton::MakeOwnerDrawn() @@ -309,14 +659,14 @@ bool wxButton::SetBackgroundColour(const wxColour &colour) if ( !wxControl::SetBackgroundColour(colour) ) { // nothing to do - return FALSE; + return false; } MakeOwnerDrawn(); Refresh(); - return TRUE; + return true; } bool wxButton::SetForegroundColour(const wxColour &colour) @@ -324,24 +674,25 @@ bool wxButton::SetForegroundColour(const wxColour &colour) if ( !wxControl::SetForegroundColour(colour) ) { // nothing to do - return FALSE; + return false; } MakeOwnerDrawn(); Refresh(); - return TRUE; + return true; } /* The button frame looks like this normally: WWWWWWWWWWWWWWWWWWB - W GB - W GB - W GB where W, G, B are white, grey and black pixels - W GB + WHHHHHHHHHHHHHHHHGB W = white (HILIGHT) + WH GB H = light grey (LIGHT) + WH GB G = dark grey (SHADOW) + WH GB B = black (DKSHADOW) + WH GB WGGGGGGGGGGGGGGGGGB BBBBBBBBBBBBBBBBBBB @@ -350,8 +701,9 @@ bool wxButton::SetForegroundColour(const wxColour &colour) BBBBBBBBBBBBBBBBBBB BWWWWWWWWWWWWWWWWBB - BW GBB - BW GBB + BWHHHHHHHHHHHHHHGBB + BWH GBB + BWH GBB BWGGGGGGGGGGGGGGGBB BBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBB @@ -363,6 +715,7 @@ bool wxButton::SetForegroundColour(const wxColour &colour) BG GB BG GB BG GB + BG GB BGGGGGGGGGGGGGGGGGB BBBBBBBBBBBBBBBBBBB */ @@ -373,9 +726,10 @@ static void DrawButtonFrame(HDC hdc, const RECT& rectBtn, RECT r; CopyRect(&r, &rectBtn); - HPEN hpenBlack = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DDKSHADOW)), - hpenGrey = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DSHADOW)), - hpenWhite = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DHILIGHT)); + HPEN hpenBlack = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DDKSHADOW)), + hpenGrey = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DSHADOW)), + hpenLightGr = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DLIGHT)), + hpenWhite = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DHILIGHT)); HPEN hpenOld = (HPEN)SelectObject(hdc, hpenBlack); @@ -387,7 +741,7 @@ static void DrawButtonFrame(HDC hdc, const RECT& rectBtn, DrawRect(hdc, r); (void)SelectObject(hdc, hpenGrey); - InflateRect(&r, -1, -1); + ::InflateRect(&r, -1, -1); DrawRect(hdc, r); } @@ -397,88 +751,174 @@ static void DrawButtonFrame(HDC hdc, const RECT& rectBtn, { DrawRect(hdc, r); - InflateRect(&r, -1, -1); + ::InflateRect(&r, -1, -1); } - MoveToEx(hdc, r.left, r.bottom, NULL); - LineTo(hdc, r.right, r.bottom); - LineTo(hdc, r.right, r.top - 1); + wxDrawLine(hdc, r.left, r.bottom, r.right, r.bottom); + wxDrawLine(hdc, r.right, r.bottom, r.right, r.top - 1); (void)SelectObject(hdc, hpenWhite); - MoveToEx(hdc, r.left, r.bottom - 1, NULL); - LineTo(hdc, r.left, r.top); - LineTo(hdc, r.right, r.top); + wxDrawLine(hdc, r.left, r.bottom - 1, r.left, r.top); + wxDrawLine(hdc, r.left, r.top, r.right, r.top); + + (void)SelectObject(hdc, hpenLightGr); + wxDrawLine(hdc, r.left + 1, r.bottom - 2, r.left + 1, r.top + 1); + wxDrawLine(hdc, r.left + 1, r.top + 1, r.right - 1, r.top + 1); (void)SelectObject(hdc, hpenGrey); - MoveToEx(hdc, r.left + 1, r.bottom - 1, NULL); - LineTo(hdc, r.right - 1, r.bottom - 1); - LineTo(hdc, r.right - 1, r.top); + wxDrawLine(hdc, r.left + 1, r.bottom - 1, r.right - 1, r.bottom - 1); + wxDrawLine(hdc, r.right - 1, r.bottom - 1, r.right - 1, r.top); } (void)SelectObject(hdc, hpenOld); DeleteObject(hpenWhite); + DeleteObject(hpenLightGr); DeleteObject(hpenGrey); DeleteObject(hpenBlack); } -bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis) +#if wxUSE_UXTHEME +static +void MSWDrawXPBackground(wxButton *button, WXDRAWITEMSTRUCT *wxdis) { LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis; - + HDC hdc = lpDIS->hDC; + UINT state = lpDIS->itemState; RECT rectBtn; CopyRect(&rectBtn, &lpDIS->rcItem); - COLORREF colBg = wxColourToRGB(GetBackgroundColour()), - colFg = wxColourToRGB(GetForegroundColour()); + wxUxThemeHandle theme(button, L"BUTTON"); + int iState; + + if ( state & ODS_SELECTED ) + { + iState = PBS_PRESSED; + } + else if ( button->HasCapture() || button->IsMouseInWindow() ) + { + iState = PBS_HOT; + } + else if ( state & ODS_FOCUS ) + { + iState = PBS_DEFAULTED; + } + else if ( state & ODS_DISABLED ) + { + iState = PBS_DISABLED; + } + else + { + iState = PBS_NORMAL; + } + + // draw parent background if needed + if ( wxUxThemeEngine::Get()->IsThemeBackgroundPartiallyTransparent(theme, + BP_PUSHBUTTON, + iState) ) + { + wxUxThemeEngine::Get()->DrawThemeParentBackground(GetHwndOf(button), hdc, &rectBtn); + } + + // draw background + wxUxThemeEngine::Get()->DrawThemeBackground(theme, hdc, BP_PUSHBUTTON, iState, + &rectBtn, NULL); + + // calculate content area margins + MARGINS margins; + wxUxThemeEngine::Get()->GetThemeMargins(theme, hdc, BP_PUSHBUTTON, iState, + TMT_CONTENTMARGINS, &rectBtn, &margins); + RECT rectClient; + ::CopyRect(&rectClient, &rectBtn); + ::InflateRect(&rectClient, -margins.cxLeftWidth, -margins.cyTopHeight); + + // if focused and !nofocus rect + if ( (state & ODS_FOCUS) && !(state & ODS_NOFOCUSRECT) ) + { + DrawFocusRect(hdc, &rectClient); + } + + if ( button->UseBgCol() ) + { + COLORREF colBg = wxColourToRGB(button->GetBackgroundColour()); + HBRUSH hbrushBackground = ::CreateSolidBrush(colBg); + + // don't overwrite the focus rect + ::InflateRect(&rectClient, -1, -1); + FillRect(hdc, &rectClient, hbrushBackground); + ::DeleteObject(hbrushBackground); + } +} +#endif // wxUSE_UXTHEME +bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis) +{ + LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis; HDC hdc = lpDIS->hDC; UINT state = lpDIS->itemState; + RECT rectBtn; + CopyRect(&rectBtn, &lpDIS->rcItem); - // first, draw the background - HBRUSH hbrushBackground = ::CreateSolidBrush(colBg); +#if wxUSE_UXTHEME + if ( wxUxThemeEngine::GetIfActive() ) + { + MSWDrawXPBackground(this, wxdis); + } + else +#endif // wxUSE_UXTHEME + { + COLORREF colBg = wxColourToRGB(GetBackgroundColour()); - FillRect(hdc, &rectBtn, hbrushBackground); + // first, draw the background + HBRUSH hbrushBackground = ::CreateSolidBrush(colBg); + FillRect(hdc, &rectBtn, hbrushBackground); + ::DeleteObject(hbrushBackground); - // draw the border for the current state - bool selected = (state & ODS_SELECTED) != 0; - if ( !selected ) - { - wxPanel *panel = wxDynamicCast(GetParent(), wxPanel); - if ( panel ) + // draw the border for the current state + bool selected = (state & ODS_SELECTED) != 0; + if ( !selected ) { - selected = panel->GetDefaultItem() == this; + wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); + if ( tlw ) + { + selected = tlw->GetDefaultItem() == this; + } } - } - bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0; + bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0; - DrawButtonFrame(hdc, rectBtn, selected, pushed); + DrawButtonFrame(hdc, rectBtn, selected, pushed); - // draw the focus rect if needed - if ( state & ODS_FOCUS ) - { - RECT rectFocus; - CopyRect(&rectFocus, &rectBtn); + // if focused and !nofocus rect + if ( (state & ODS_FOCUS) && !(state & ODS_NOFOCUSRECT) ) + { + RECT rectFocus; + CopyRect(&rectFocus, &rectBtn); - // I don't know where does this constant come from, but this is how - // Windows draws them - InflateRect(&rectFocus, -4, -4); + // I don't know where does this constant come from, but this is how + // Windows draws them + InflateRect(&rectFocus, -4, -4); - DrawFocusRect(hdc, &rectFocus); - } + DrawFocusRect(hdc, &rectFocus); + } - if ( pushed ) - { - // the label is shifted by 1 pixel to create "pushed" effect - OffsetRect(&rectBtn, 1, 1); + if ( pushed ) + { + // the label is shifted by 1 pixel to create "pushed" effect + OffsetRect(&rectBtn, 1, 1); + } } - DrawButtonText(hdc, &rectBtn, GetLabel(), - state & ODS_DISABLED ? GetSysColor(COLOR_GRAYTEXT) - : colFg); + COLORREF colFg = state & ODS_DISABLED + ? ::GetSysColor(COLOR_GRAYTEXT) + : wxColourToRGB(GetForegroundColour()); - ::DeleteObject(hbrushBackground); + // notice that DT_HIDEPREFIX doesn't work on old (pre-Windows 2000) systems + // but by happy coincidence ODS_NOACCEL is not used under them neither so + // DT_HIDEPREFIX should never be used there + DrawButtonText(hdc, &rectBtn, GetLabel(), colFg, + state & ODS_NOACCEL ? DT_HIDEPREFIX : 0); - return TRUE; + return true; } -#endif // __WIN32__ +#endif // wxUSE_BUTTON +