///////////////////////////////////////////////////////////////////////////// // Name: msw/statbox.cpp // Purpose: wxStaticBox // Author: Julian Smart // Modified by: // Created: 04/01/98 // RCS-ID: $Id$ // Copyright: (c) Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ // declarations // ============================================================================ // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "statbox.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ #pragma hdrstop #endif #if wxUSE_STATBOX #ifndef WX_PRECOMP #include "wx/app.h" #include "wx/dcclient.h" #endif #include "wx/statbox.h" #include "wx/notebook.h" #include "wx/sysopt.h" #include "wx/image.h" #include "wx/dcmemory.h" #include "wx/sysopt.h" #include "wx/msw/private.h" #include "wx/msw/missing.h" // ---------------------------------------------------------------------------- // wxWin macros // ---------------------------------------------------------------------------- #if wxUSE_EXTENDED_RTTI WX_DEFINE_FLAGS( wxStaticBoxStyle ) wxBEGIN_FLAGS( wxStaticBoxStyle ) // 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) wxEND_FLAGS( wxStaticBoxStyle ) IMPLEMENT_DYNAMIC_CLASS_XTI(wxStaticBox, wxControl,"wx/statbox.h") wxBEGIN_PROPERTIES_TABLE(wxStaticBox) wxPROPERTY( Label,wxString, SetLabel, GetLabel, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) wxPROPERTY_FLAGS( WindowStyle , wxStaticBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style /* TODO PROPERTIES : label */ wxEND_PROPERTIES_TABLE() wxBEGIN_HANDLERS_TABLE(wxStaticBox) wxEND_HANDLERS_TABLE() wxCONSTRUCTOR_6( wxStaticBox , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle ) #else IMPLEMENT_DYNAMIC_CLASS(wxStaticBox, wxControl) #endif // ============================================================================ // implementation // ============================================================================ // ---------------------------------------------------------------------------- // wxStaticBox // ---------------------------------------------------------------------------- bool wxStaticBox::Create(wxWindow *parent, wxWindowID id, const wxString& label, const wxPoint& pos, const wxSize& size, long style, const wxString& name) { if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) ) return false; if ( !MSWCreateControl(wxT("BUTTON"), label, pos, size) ) return false; #ifndef __WXWINCE__ if (!wxSystemOptions::IsFalse(wxT("msw.staticbox.optimized-paint"))) Connect(wxEVT_PAINT, wxPaintEventHandler(wxStaticBox::OnPaint)); #endif // !__WXWINCE__ return true; } wxBorder wxStaticBox::GetDefaultBorder() const { return wxBORDER_NONE; } WXDWORD wxStaticBox::MSWGetStyle(long style, WXDWORD *exstyle) const { long styleWin = wxStaticBoxBase::MSWGetStyle(style, exstyle); // no need for it anymore, must be removed for wxRadioBox child // buttons to be able to repaint themselves styleWin &= ~WS_CLIPCHILDREN; if ( exstyle ) { #ifndef __WXWINCE__ if (wxSystemOptions::IsFalse(wxT("msw.staticbox.optimized-paint"))) *exstyle = WS_EX_TRANSPARENT; else #endif *exstyle = 0; } return styleWin | BS_GROUPBOX; } wxSize wxStaticBox::DoGetBestSize() const { int cx, cy; wxGetCharSize(GetHWND(), &cx, &cy, GetFont()); int wBox; GetTextExtent(wxGetWindowText(m_hWnd), &wBox, &cy); wBox += 3*cx; int hBox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); return wxSize(wBox, hBox); } void wxStaticBox::GetBordersForSizer(int *borderTop, int *borderOther) const { wxStaticBoxBase::GetBordersForSizer(borderTop, borderOther); // need extra space, don't know how much but this seems to be enough *borderTop += GetCharHeight()/3; } // all the hacks below are not necessary for WinCE #ifndef __WXWINCE__ WXLRESULT wxStaticBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) { if ( nMsg == WM_NCHITTEST ) { // This code breaks some other processing such as enter/leave tracking // so it's off by default. static int s_useHTClient = -1; if (s_useHTClient == -1) s_useHTClient = wxSystemOptions::GetOptionInt(wxT("msw.staticbox.htclient")); if (s_useHTClient == 1) { int xPos = GET_X_LPARAM(lParam); int yPos = GET_Y_LPARAM(lParam); ScreenToClient(&xPos, &yPos); // Make sure you can drag by the top of the groupbox, but let // other (enclosed) controls get mouse events also if ( yPos < 10 ) return (long)HTCLIENT; } } return wxControl::MSWWindowProc(nMsg, wParam, lParam); } // ---------------------------------------------------------------------------- // static box drawing // ---------------------------------------------------------------------------- /* We draw the static box ourselves because it's the only way to prevent it from flickering horribly on resize (because everything inside the box is erased twice: once when the box itself is repainted and second time when the control inside it is repainted) without using WS_EX_TRANSPARENT style as we used to do and which resulted in other problems. */ // MSWGetRegionWithoutSelf helper: removes the given rectangle from region static inline void SubtractRectFromRgn(HRGN hrgn, int left, int top, int right, int bottom) { AutoHRGN hrgnRect(::CreateRectRgn(left, top, right, bottom)); if ( !hrgnRect ) { wxLogLastError(_T("CreateRectRgn()")); return; } ::CombineRgn(hrgn, hrgn, hrgnRect, RGN_DIFF); } void wxStaticBox::MSWGetRegionWithoutSelf(WXHRGN hRgn, int w, int h) { HRGN hrgn = (HRGN)hRgn; // remove the area occupied by the static box borders from the region int borderTop, border; GetBordersForSizer(&borderTop, &border); // top SubtractRectFromRgn(hrgn, 0, 0, w, borderTop); // bottom SubtractRectFromRgn(hrgn, 0, h - border, w, h); // left SubtractRectFromRgn(hrgn, 0, 0, border, h); // right SubtractRectFromRgn(hrgn, w - border, 0, w, h); } WXHRGN wxStaticBox::MSWGetRegionWithoutChildren() { RECT rc; ::GetWindowRect(GetHwnd(), &rc); HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1); // iterate over all child windows (not just wxWindows but all windows) for ( HWND child = ::GetWindow(GetHwndOf(GetParent()), GW_CHILD); child; child = ::GetWindow(child, GW_HWNDNEXT) ) { if ( ! ::IsWindowVisible(child) ) { // if the window isn't visible then it doesn't need clipped continue; } LONG style = ::GetWindowLong(child, GWL_STYLE); wxString str(wxGetWindowClass(child)); str.UpperCase(); if ( str == wxT("BUTTON") && (style & BS_GROUPBOX) == BS_GROUPBOX ) { // Don't clip any static boxes, not just this one. This will // result in flicker in overlapping static boxes, but at least // they will all be drawn correctly and we shouldn't have // overlapping windows anyway. continue; } ::GetWindowRect(child, &rc); if ( ::RectInRegion(hrgn, &rc) ) { // need to remove WS_CLIPSIBLINGS from all sibling windows // that are within this staticbox if set if ( style & WS_CLIPSIBLINGS ) { style &= ~WS_CLIPSIBLINGS; ::SetWindowLong(child, GWL_STYLE, style); // MSDN: "If you have changed certain window data using // SetWindowLong, you must call SetWindowPos to have the // changes take effect." ::SetWindowPos(child, NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED); } AutoHRGN hrgnChild(::CreateRectRgnIndirect(&rc)); ::CombineRgn(hrgn, hrgn, hrgnChild, RGN_DIFF); } } return (WXHRGN)hrgn; } // helper for OnPaint(): really erase the background, i.e. do it even if we // don't have any non default brush for doing it (DoEraseBackground() doesn't // do anything in such case) void wxStaticBox::PaintBackground(wxDC& dc, const RECT& rc) { // note that we do not use the box background colour here, it shouldn't // apply to its interior for several reasons: // 1. wxGTK doesn't do it // 2. controls inside the box don't get correct bg colour because they // are not our children so we'd have some really ugly colour mix if // we did it // 3. this is backwards compatible behaviour and some people rely on it, // see http://groups.google.com/groups?selm=4252E932.3080801%40able.es wxWindow *parent = GetParent(); HBRUSH hbr = (HBRUSH)parent->MSWGetBgBrush(dc.GetHDC(), GetHWND()); // if there is no special brush for painting this control, just use the // solid background colour wxBrush brush; if ( !hbr ) { brush = wxBrush(parent->GetBackgroundColour()); hbr = GetHbrushOf(brush); } ::FillRect(GetHdcOf(dc), &rc, hbr); } void wxStaticBox::PaintForeground(wxDC& dc, const RECT& WXUNUSED(rc)) { // NB: neither setting the text colour nor transparent background mode // doesn't change anything: the static box def window proc still // draws the label in its own colours, so if we want to have control // over this we really have to draw everything ourselves MSWDefWindowProc(WM_PAINT, (WPARAM)GetHdcOf(dc), 0); } void wxStaticBox::OnPaint(wxPaintEvent& WXUNUSED(event)) { RECT rc; ::GetClientRect(GetHwnd(), &rc); // draw the entire box in a memory DC wxMemoryDC memdc; wxBitmap bitmap(rc.right, rc.bottom); memdc.SelectObject(bitmap); PaintBackground(memdc, rc); PaintForeground(memdc, rc); // now only blit the static box border itself, not the interior, to avoid // flicker when background is drawn below // // note that it seems to be faster to do 4 small blits here and then paint // directly into wxPaintDC than painting background in wxMemoryDC and then // blitting everything at once to wxPaintDC, this is why we do it like this wxPaintDC dc(this); int borderTop, border; GetBordersForSizer(&borderTop, &border); // top dc.Blit(border, 0, rc.right - border, borderTop, &memdc, border, 0); // bottom dc.Blit(border, rc.bottom - border, rc.right - border, rc.bottom, &memdc, border, rc.bottom - border); // left dc.Blit(0, 0, border, rc.bottom, &memdc, 0, 0); // right dc.Blit(rc.right - border, 0, rc.right, rc.bottom, &memdc, rc.right - border, 0); // create the region excluding box children AutoHRGN hrgn((HRGN)MSWGetRegionWithoutChildren()); RECT rcWin; ::GetWindowRect(GetHwnd(), &rcWin); ::OffsetRgn(hrgn, -rcWin.left, -rcWin.top); // and also the box itself MSWGetRegionWithoutSelf((WXHRGN) hrgn, rc.right, rc.bottom); HDCClipper clipToBg(GetHdcOf(dc), hrgn); // paint the inside of the box (excluding box itself and child controls) PaintBackground(dc, rc); } #endif // !__WXWINCE__ #endif // wxUSE_STATBOX