src/msw/statbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/statbox.cpp
   3 // Purpose:     wxStaticBox
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "statbox.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #if wxUSE_STATBOX
  32
  33 #ifndef WX_PRECOMP
  34     #include "wx/app.h"
  35     #include "wx/dcclient.h"
  36 #endif
  37
  38 #include "wx/statbox.h"
  39 #include "wx/notebook.h"
  40 #include "wx/sysopt.h"
  41 #include "wx/image.h"
  42
  43 #include "wx/msw/private.h"
  44
  45 // ----------------------------------------------------------------------------
  46 // wxWin macros
  47 // ----------------------------------------------------------------------------
  48
  49 #if wxUSE_EXTENDED_RTTI
  50 WX_DEFINE_FLAGS( wxStaticBoxStyle )
  51
  52 wxBEGIN_FLAGS( wxStaticBoxStyle )
  53     // new style border flags, we put them first to
  54     // use them for streaming out
  55     wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  56     wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  57     wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  58     wxFLAGS_MEMBER(wxBORDER_RAISED)
  59     wxFLAGS_MEMBER(wxBORDER_STATIC)
  60     wxFLAGS_MEMBER(wxBORDER_NONE)
  61
  62     // old style border flags
  63     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  64     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  65     wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  66     wxFLAGS_MEMBER(wxRAISED_BORDER)
  67     wxFLAGS_MEMBER(wxSTATIC_BORDER)
  68     wxFLAGS_MEMBER(wxBORDER)
  69
  70     // standard window styles
  71     wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  72     wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  73     wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  74     wxFLAGS_MEMBER(wxWANTS_CHARS)
  75     wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
  76     wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  77     wxFLAGS_MEMBER(wxVSCROLL)
  78     wxFLAGS_MEMBER(wxHSCROLL)
  79
  80 wxEND_FLAGS( wxStaticBoxStyle )
  81
  82 IMPLEMENT_DYNAMIC_CLASS_XTI(wxStaticBox, wxControl,"wx/statbox.h")
  83
  84 wxBEGIN_PROPERTIES_TABLE(wxStaticBox)
  85     wxPROPERTY( Label,wxString, SetLabel, GetLabel, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
  86     wxPROPERTY_FLAGS( WindowStyle , wxStaticBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
  87 /*
  88     TODO PROPERTIES :
  89         label
  90 */
  91 wxEND_PROPERTIES_TABLE()
  92
  93 wxBEGIN_HANDLERS_TABLE(wxStaticBox)
  94 wxEND_HANDLERS_TABLE()
  95
  96 wxCONSTRUCTOR_6( wxStaticBox , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle )
  97 #else
  98 IMPLEMENT_DYNAMIC_CLASS(wxStaticBox, wxControl)
  99 #endif
 100
 101 BEGIN_EVENT_TABLE(wxStaticBox, wxControl)
 102     EVT_PAINT(wxStaticBox::OnPaint)
 103 END_EVENT_TABLE()
 104
 105 // ============================================================================
 106 // implementation
 107 // ============================================================================
 108
 109 // ----------------------------------------------------------------------------
 110 // wxStaticBox
 111 // ----------------------------------------------------------------------------
 112
 113 bool wxStaticBox::Create(wxWindow *parent,
 114                          wxWindowID id,
 115                          const wxString& label,
 116                          const wxPoint& pos,
 117                          const wxSize& size,
 118                          long style,
 119                          const wxString& name)
 120 {
 121     if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
 122         return false;
 123
 124     if ( !MSWCreateControl(wxT("BUTTON"), label, pos, size) )
 125         return false;
 126
 127     return true;
 128 }
 129
 130 WXDWORD wxStaticBox::MSWGetStyle(long style, WXDWORD *exstyle) const
 131 {
 132     long styleWin = wxStaticBoxBase::MSWGetStyle(style, exstyle);
 133
 134     // no need for it anymore, must be removed for wxRadioBox child
 135     // buttons to be able to repaint themselves
 136     styleWin &= ~WS_CLIPCHILDREN;
 137
 138     if ( exstyle )
 139         *exstyle = 0;
 140
 141     return styleWin | BS_GROUPBOX;
 142 }
 143
 144 wxSize wxStaticBox::DoGetBestSize() const
 145 {
 146     int cx, cy;
 147     wxGetCharSize(GetHWND(), &cx, &cy, GetFont());
 148
 149     int wBox;
 150     GetTextExtent(wxGetWindowText(m_hWnd), &wBox, &cy);
 151
 152     wBox += 3*cx;
 153     int hBox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
 154
 155     return wxSize(wBox, hBox);
 156 }
 157
 158 WXLRESULT wxStaticBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 159 {
 160 #ifndef __WXWINCE__
 161     if ( nMsg == WM_NCHITTEST )
 162     {
 163         // This code breaks some other processing such as enter/leave tracking
 164         // so it's off by default.
 165
 166         static int s_useHTClient = -1;
 167         if (s_useHTClient == -1)
 168             s_useHTClient = wxSystemOptions::GetOptionInt(wxT("msw.staticbox.htclient"));
 169         if (s_useHTClient == 1)
 170         {
 171             int xPos = LOWORD(lParam);  // horizontal position of cursor
 172             int yPos = HIWORD(lParam);  // vertical position of cursor
 173
 174             ScreenToClient(&xPos, &yPos);
 175
 176             // Make sure you can drag by the top of the groupbox, but let
 177             // other (enclosed) controls get mouse events also
 178             if ( yPos < 10 )
 179                 return (long)HTCLIENT;
 180         }
 181     }
 182 #endif // !__WXWINCE__
 183
 184     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 185 }
 186
 187 void wxStaticBox::GetBordersForSizer(int *borderTop, int *borderOther) const
 188 {
 189     wxStaticBoxBase::GetBordersForSizer(borderTop, borderOther);
 190
 191     // if not using correct (but backwards cojmpatible) text metrics
 192     // calculations, we need to add some extra margin or otherwise static box
 193     // title is clipped
 194 #if !wxDIALOG_UNIT_COMPATIBILITY
 195     if ( !GetLabel().empty() )
 196         *borderTop += GetCharHeight()/3;
 197 #endif // !wxDIALOG_UNIT_COMPATIBILITY
 198 }
 199
 200 // rc must be in client coords!
 201 void wxStaticBox::MSWClipBoxRegion(HRGN hrgn, const RECT *rc)
 202 {
 203     HRGN hrgnchild;
 204
 205     // top
 206     hrgnchild = ::CreateRectRgn(0, 0, rc->right, 14);
 207     ::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
 208     ::DeleteObject(hrgnchild);
 209
 210     // bottom
 211     hrgnchild = ::CreateRectRgn(0, rc->bottom - 7, rc->right, rc->bottom);
 212     ::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
 213     ::DeleteObject(hrgnchild);
 214
 215     // left
 216     hrgnchild = ::CreateRectRgn(0, 0, 7, rc->bottom);
 217     ::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
 218     ::DeleteObject(hrgnchild);
 219
 220     // right
 221     hrgnchild = ::CreateRectRgn(rc->right - 7, 0, rc->right, rc->bottom);
 222     ::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
 223     ::DeleteObject(hrgnchild);
 224 }
 225
 226 WXHRGN wxStaticBox::MSWCalculateClippingRegion()
 227 {
 228     RECT rc;
 229     ::GetWindowRect(GetHwnd(), &rc);
 230     HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
 231
 232     wxWindowList::compatibility_iterator node = GetParent()->GetChildren().GetFirst();
 233     while ( node )
 234     {
 235         wxWindow *child = node->GetData();
 236
 237         // can't just test for (this != child) here since if a wxStaticBox
 238         // overlaps another wxStaticBox then neither are drawn. The overlapping
 239         // region will flicker but we shouldn't have overlapping windows anyway.
 240         if ( !child->IsKindOf(CLASSINFO(wxStaticBox)) )
 241         {
 242             ::GetWindowRect(GetHwndOf(child), &rc);
 243             if ( RectInRegion(hrgn, &rc) )
 244             {
 245                 // need to remove WS_CLIPSIBLINGS from all sibling windows
 246                 // that are within this staticbox if set
 247                 LONG style = ::GetWindowLong(GetHwndOf(child), GWL_STYLE);
 248                 if ( style & WS_CLIPSIBLINGS )
 249                 {
 250                     style &= ~WS_CLIPSIBLINGS;
 251                     ::SetWindowLong(GetHwndOf(child), GWL_STYLE, style);
 252
 253                     // MSDN: "If you have changed certain window data using
 254                     // SetWindowLong, you must call SetWindowPos to have the
 255                     // changes take effect."
 256                     ::SetWindowPos(GetHwndOf(child), NULL, 0, 0, 0, 0,
 257                                    SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
 258                                    SWP_FRAMECHANGED);
 259                 }
 260
 261                 HRGN hrgnchild = ::CreateRectRgnIndirect(&rc);
 262                 ::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
 263                 ::DeleteObject(hrgnchild);
 264             }
 265         }
 266
 267         node = node->GetNext();
 268     }
 269     ::GetWindowRect(GetHwnd(), &rc);
 270     ::OffsetRgn(hrgn, -rc.left, -rc.top);
 271
 272     return hrgn;
 273 }
 274
 275 void wxStaticBox::OnPaint(wxPaintEvent& WXUNUSED(event))
 276 {
 277     wxPaintDC dc(this);
 278     RECT rc;
 279     ::GetClientRect(GetHwnd(), &rc);
 280
 281     // paint the actual box
 282     wxMemoryDC memdc;
 283     wxBitmap bitmap(rc.right, rc.bottom);
 284     memdc.SelectObject(bitmap);
 285
 286     // get bg brush
 287     WXHBRUSH hbr = DoMSWControlColor(GetHdcOf(memdc), wxNullColour);
 288     if ( !hbr )
 289     {
 290         wxBrush *brush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
 291         hbr = (WXHBRUSH)brush->GetResourceHandle();
 292     }
 293
 294     // draw solid box, but only blit the good bits
 295     ::FillRect(GetHdcOf(memdc), &rc, (HBRUSH)hbr);
 296     MSWDefWindowProc(WM_PAINT, (WPARAM)GetHdcOf(memdc), 0);
 297
 298     // top
 299     dc.Blit(7, 0, rc.right - 7, 14, &memdc, 7, 0);
 300     // bottom
 301     dc.Blit(7, rc.bottom - 7, rc.right - 7, rc.bottom, &memdc, 7, rc.bottom - 7);
 302     // left
 303     dc.Blit(0, 0, 7, rc.bottom, &memdc, 0, 0);
 304     // right
 305     dc.Blit(rc.right - 7, 0, rc.right, rc.bottom, &memdc, rc.right - 7, 0);
 306
 307     // paint the inner
 308     HRGN hrgn = (HRGN)MSWCalculateClippingRegion();
 309     // now remove the box itself
 310     MSWClipBoxRegion(hrgn, &rc);
 311
 312     hbr = DoMSWControlColor(GetHdcOf(dc), wxNullColour);
 313     if ( !hbr )
 314     {
 315         wxBrush *brush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
 316         hbr = (WXHBRUSH)brush->GetResourceHandle();
 317     }
 318
 319     ::SelectClipRgn(GetHdcOf(dc), hrgn);
 320     ::FillRect(GetHdcOf(dc), &rc, (HBRUSH)hbr);
 321     ::SelectClipRgn(GetHdcOf(dc), NULL);
 322     ::DeleteObject(hrgn);
 323 }
 324
 325 #endif // wxUSE_STATBOX
 326