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 #include "wx/dcmemory.h"
  43
  44 #include "wx/msw/private.h"
  45
  46 // ----------------------------------------------------------------------------
  47 // wxWin macros
  48 // ----------------------------------------------------------------------------
  49
  50 #if wxUSE_EXTENDED_RTTI
  51 WX_DEFINE_FLAGS( wxStaticBoxStyle )
  52
  53 wxBEGIN_FLAGS( wxStaticBoxStyle )
  54     // new style border flags, we put them first to
  55     // use them for streaming out
  56     wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  57     wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  58     wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  59     wxFLAGS_MEMBER(wxBORDER_RAISED)
  60     wxFLAGS_MEMBER(wxBORDER_STATIC)
  61     wxFLAGS_MEMBER(wxBORDER_NONE)
  62
  63     // old style border flags
  64     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  65     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  66     wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  67     wxFLAGS_MEMBER(wxRAISED_BORDER)
  68     wxFLAGS_MEMBER(wxSTATIC_BORDER)
  69     wxFLAGS_MEMBER(wxBORDER)
  70
  71     // standard window styles
  72     wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  73     wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  74     wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  75     wxFLAGS_MEMBER(wxWANTS_CHARS)
  76     wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
  77     wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  78     wxFLAGS_MEMBER(wxVSCROLL)
  79     wxFLAGS_MEMBER(wxHSCROLL)
  80
  81 wxEND_FLAGS( wxStaticBoxStyle )
  82
  83 IMPLEMENT_DYNAMIC_CLASS_XTI(wxStaticBox, wxControl,"wx/statbox.h")
  84
  85 wxBEGIN_PROPERTIES_TABLE(wxStaticBox)
  86     wxPROPERTY( Label,wxString, SetLabel, GetLabel, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
  87     wxPROPERTY_FLAGS( WindowStyle , wxStaticBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
  88 /*
  89     TODO PROPERTIES :
  90         label
  91 */
  92 wxEND_PROPERTIES_TABLE()
  93
  94 wxBEGIN_HANDLERS_TABLE(wxStaticBox)
  95 wxEND_HANDLERS_TABLE()
  96
  97 wxCONSTRUCTOR_6( wxStaticBox , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle )
  98 #else
  99 IMPLEMENT_DYNAMIC_CLASS(wxStaticBox, wxControl)
 100 #endif
 101
 102 BEGIN_EVENT_TABLE(wxStaticBox, wxControl)
 103     EVT_PAINT(wxStaticBox::OnPaint)
 104 END_EVENT_TABLE()
 105
 106 // ============================================================================
 107 // implementation
 108 // ============================================================================
 109
 110 // ----------------------------------------------------------------------------
 111 // wxStaticBox
 112 // ----------------------------------------------------------------------------
 113
 114 bool wxStaticBox::Create(wxWindow *parent,
 115                          wxWindowID id,
 116                          const wxString& label,
 117                          const wxPoint& pos,
 118                          const wxSize& size,
 119                          long style,
 120                          const wxString& name)
 121 {
 122     if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
 123         return false;
 124
 125     if ( !MSWCreateControl(wxT("BUTTON"), label, pos, size) )
 126         return false;
 127
 128     return true;
 129 }
 130
 131 WXDWORD wxStaticBox::MSWGetStyle(long style, WXDWORD *exstyle) const
 132 {
 133     long styleWin = wxStaticBoxBase::MSWGetStyle(style, exstyle);
 134
 135     // no need for it anymore, must be removed for wxRadioBox child
 136     // buttons to be able to repaint themselves
 137     styleWin &= ~WS_CLIPCHILDREN;
 138
 139     if ( exstyle )
 140         *exstyle = 0;
 141
 142     return styleWin | BS_GROUPBOX;
 143 }
 144
 145 wxSize wxStaticBox::DoGetBestSize() const
 146 {
 147     int cx, cy;
 148     wxGetCharSize(GetHWND(), &cx, &cy, GetFont());
 149
 150     int wBox;
 151     GetTextExtent(wxGetWindowText(m_hWnd), &wBox, &cy);
 152
 153     wBox += 3*cx;
 154     int hBox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
 155
 156     return wxSize(wBox, hBox);
 157 }
 158
 159 WXLRESULT wxStaticBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 160 {
 161 #ifndef __WXWINCE__
 162     if ( nMsg == WM_NCHITTEST )
 163     {
 164         // This code breaks some other processing such as enter/leave tracking
 165         // so it's off by default.
 166
 167         static int s_useHTClient = -1;
 168         if (s_useHTClient == -1)
 169             s_useHTClient = wxSystemOptions::GetOptionInt(wxT("msw.staticbox.htclient"));
 170         if (s_useHTClient == 1)
 171         {
 172             int xPos = LOWORD(lParam);  // horizontal position of cursor
 173             int yPos = HIWORD(lParam);  // vertical position of cursor
 174
 175             ScreenToClient(&xPos, &yPos);
 176
 177             // Make sure you can drag by the top of the groupbox, but let
 178             // other (enclosed) controls get mouse events also
 179             if ( yPos < 10 )
 180                 return (long)HTCLIENT;
 181         }
 182     }
 183 #endif // !__WXWINCE__
 184
 185     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 186 }
 187
 188 void wxStaticBox::GetBordersForSizer(int *borderTop, int *borderOther) const
 189 {
 190     wxStaticBoxBase::GetBordersForSizer(borderTop, borderOther);
 191
 192     // if not using correct (but backwards cojmpatible) text metrics
 193     // calculations, we need to add some extra margin or otherwise static box
 194     // title is clipped
 195 #if !wxDIALOG_UNIT_COMPATIBILITY
 196     if ( !GetLabel().empty() )
 197         *borderTop += GetCharHeight()/3;
 198 #endif // !wxDIALOG_UNIT_COMPATIBILITY
 199 }
 200
 201 // rc must be in client coords!
 202 void wxStaticBox::MSWClipBoxRegion(WXHRGN hrgn, const WXRECTPTR rc)
 203 {
 204     HRGN hrgnchild;
 205
 206     // top
 207     hrgnchild = ::CreateRectRgn(0, 0, ((const RECT*) rc)->right, 14);
 208     ::CombineRgn((HRGN) hrgn, (HRGN) hrgn, hrgnchild, RGN_DIFF);
 209     ::DeleteObject(hrgnchild);
 210
 211     // bottom
 212     hrgnchild = ::CreateRectRgn(0, ((const RECT*) rc)->bottom - 7, ((const RECT*) rc)->right, ((const RECT*) rc)->bottom);
 213     ::CombineRgn((HRGN) hrgn, (HRGN) hrgn, hrgnchild, RGN_DIFF);
 214     ::DeleteObject(hrgnchild);
 215
 216     // left
 217     hrgnchild = ::CreateRectRgn(0, 0, 7, ((const RECT*) rc)->bottom);
 218     ::CombineRgn((HRGN) hrgn, (HRGN) hrgn, hrgnchild, RGN_DIFF);
 219     ::DeleteObject(hrgnchild);
 220
 221     // right
 222     hrgnchild = ::CreateRectRgn(((const RECT*) rc)->right - 7, 0, ((const RECT*) rc)->right, ((const RECT*) rc)->bottom);
 223     ::CombineRgn((HRGN) hrgn, (HRGN) hrgn, hrgnchild, RGN_DIFF);
 224     ::DeleteObject(hrgnchild);
 225 }
 226
 227 WXHRGN wxStaticBox::MSWCalculateClippingRegion()
 228 {
 229     RECT rc;
 230     ::GetWindowRect(GetHwnd(), &rc);
 231     HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
 232
 233     wxList hWnds;
 234     HWND child = ::GetWindow((HWND) GetParent()->GetHWND(), GW_CHILD);
 235     while (child != 0)
 236     {
 237         hWnds.Append((wxObject*) child);
 238         child = ::GetWindow(child, GW_HWNDNEXT);
 239     }
 240
 241     for (wxNode* node = hWnds.GetFirst(); node; node = node->GetNext())
 242     {
 243         HWND child = (HWND) node->GetData();
 244         wxWindow* childWindow = wxGetWindowFromHWND((WXHWND) child);
 245
 246         // can't just test for (this != child) here since if a wxStaticBox
 247         // overlaps another wxStaticBox then neither are drawn. The overlapping
 248         // region will flicker but we shouldn't have overlapping windows anyway.
 249         if (!childWindow || !childWindow->IsKindOf(CLASSINFO(wxStaticBox)))
 250         {
 251             ::GetWindowRect(child, &rc);
 252             if ( RectInRegion(hrgn, &rc) )
 253             {
 254                 // need to remove WS_CLIPSIBLINGS from all sibling windows
 255                 // that are within this staticbox if set
 256                 LONG style = ::GetWindowLong(child, GWL_STYLE);
 257                 if ( style & WS_CLIPSIBLINGS )
 258                 {
 259                     style &= ~WS_CLIPSIBLINGS;
 260                     ::SetWindowLong(child, GWL_STYLE, style);
 261
 262                     // MSDN: "If you have changed certain window data using
 263                     // SetWindowLong, you must call SetWindowPos to have the
 264                     // changes take effect."
 265                     ::SetWindowPos(child, NULL, 0, 0, 0, 0,
 266                                    SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
 267                                    SWP_FRAMECHANGED);
 268                 }
 269
 270                 HRGN hrgnchild = ::CreateRectRgnIndirect(&rc);
 271                 ::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
 272                 ::DeleteObject(hrgnchild);
 273             }
 274         }
 275     }
 276
 277     ::GetWindowRect(GetHwnd(), &rc);
 278     ::OffsetRgn(hrgn, -rc.left, -rc.top);
 279
 280     return hrgn;
 281 }
 282
 283 void wxStaticBox::OnPaint(wxPaintEvent& WXUNUSED(event))
 284 {
 285     wxPaintDC dc(this);
 286     RECT rc;
 287     ::GetClientRect(GetHwnd(), &rc);
 288
 289     // paint the actual box
 290     wxMemoryDC memdc;
 291     wxBitmap bitmap(rc.right, rc.bottom);
 292     memdc.SelectObject(bitmap);
 293
 294     // get bg brush
 295     WXHBRUSH hbr = DoMSWControlColor(GetHdcOf(memdc), wxNullColour);
 296     if ( !hbr )
 297     {
 298         wxBrush *brush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
 299         hbr = (WXHBRUSH)brush->GetResourceHandle();
 300     }
 301
 302     // draw solid box, but only blit the good bits
 303     ::FillRect(GetHdcOf(memdc), &rc, (HBRUSH)hbr);
 304     MSWDefWindowProc(WM_PAINT, (WPARAM)GetHdcOf(memdc), 0);
 305
 306     // top
 307     dc.Blit(7, 0, rc.right - 7, 14, &memdc, 7, 0);
 308     // bottom
 309     dc.Blit(7, rc.bottom - 7, rc.right - 7, rc.bottom, &memdc, 7, rc.bottom - 7);
 310     // left
 311     dc.Blit(0, 0, 7, rc.bottom, &memdc, 0, 0);
 312     // right
 313     dc.Blit(rc.right - 7, 0, rc.right, rc.bottom, &memdc, rc.right - 7, 0);
 314
 315     // paint the inner
 316     HRGN hrgn = (HRGN)MSWCalculateClippingRegion();
 317     // now remove the box itself
 318     MSWClipBoxRegion((WXHRGN) hrgn, (const WXRECTPTR) &rc);
 319
 320     hbr = DoMSWControlColor(GetHdcOf(dc), wxNullColour);
 321     if ( !hbr )
 322     {
 323         wxBrush *brush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
 324         hbr = (WXHBRUSH)brush->GetResourceHandle();
 325     }
 326
 327     ::SelectClipRgn(GetHdcOf(dc), hrgn);
 328     ::FillRect(GetHdcOf(dc), &rc, (HBRUSH)hbr);
 329     ::SelectClipRgn(GetHdcOf(dc), NULL);
 330     ::DeleteObject(hrgn);
 331 }
 332
 333 #endif // wxUSE_STATBOX
 334