src/os2/statbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        statbox.cpp
   3 // Purpose:     wxStaticBox
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/window.h"
  16 #include "wx/os2/private.h"
  17
  18 #ifndef WX_PRECOMP
  19 #include "wx/app.h"
  20 #include "wx/dcclient.h"
  21 #endif
  22
  23 #include "wx/statbox.h"
  24
  25 IMPLEMENT_DYNAMIC_CLASS(wxStaticBox, wxControl)
  26
  27 BEGIN_EVENT_TABLE(wxStaticBox, wxControl)
  28     EVT_ERASE_BACKGROUND(wxStaticBox::OnEraseBackground)
  29 END_EVENT_TABLE()
  30
  31
  32 /*
  33  * Group box
  34  */
  35
  36 bool wxStaticBox::Create(wxWindow *parent, wxWindowID id,
  37            const wxString& label,
  38            const wxPoint& pos,
  39            const wxSize& size,
  40            long style,
  41            const wxString& name)
  42 {
  43   SetName(name);
  44
  45   if (parent) parent->AddChild(this);
  46
  47   SetBackgroundColour(parent->GetBackgroundColour()) ;
  48   SetForegroundColour(parent->GetForegroundColour()) ;
  49
  50   if ( id == -1 )
  51       m_windowId = (int)NewControlId();
  52   else
  53     m_windowId = id;
  54
  55   int x = pos.x;
  56   int y = pos.y;
  57   int width = size.x;
  58   int height = size.y;
  59
  60   m_windowStyle = style;
  61
  62 // TODO:
  63 /*
  64   long msStyle = BS_GROUPBOX | WS_CHILD | WS_VISIBLE ; // GROUP_FLAGS;
  65
  66   bool want3D;
  67   WXDWORD exStyle = Determine3DEffects(0, &want3D) ;
  68
  69   HWND wx_button =
  70     CreateWindowEx(exStyle, wxT("BUTTON"), (const wxChar *)label, msStyle,
  71                     0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
  72                     wxGetInstance(), NULL);
  73 #if wxUSE_CTL3D
  74   if (want3D)
  75   {
  76     Ctl3dSubclassCtl(wx_button);
  77       m_useCtl3D = TRUE;
  78   }
  79 #endif
  80
  81   m_hWnd = (WXHWND)wx_button;
  82
  83   // Subclass again for purposes of dialog editing mode
  84   SubclassWin(GetHWND());
  85
  86   SetFont(parent->GetFont());
  87
  88   SetSize(x, y, width, height);
  89   ShowWindow(wx_button, SW_SHOW);
  90 */
  91   return FALSE;
  92 }
  93
  94 wxSize wxStaticBox::DoGetBestSize() const
  95 {
  96     int cx, cy;
  97     wxGetCharSize(GetHWND(), &cx, &cy, (wxFont*)&GetFont());
  98
  99     int wBox;
 100     GetTextExtent(wxGetWindowText(m_hWnd), &wBox, &cy);
 101
 102     wBox += 3*cx;
 103     int hBox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
 104
 105     return wxSize(wBox, hBox);
 106 }
 107
 108 WXHBRUSH wxStaticBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
 109                                  WXUINT message,
 110                                  WXWPARAM wParam,
 111                                  WXLPARAM lParam)
 112 {
 113     // TODO:
 114 /*
 115   if (GetParent()->GetTransparentBackground())
 116     SetBkMode((HDC) pDC, TRANSPARENT);
 117   else
 118     SetBkMode((HDC) pDC, OPAQUE);
 119
 120   ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
 121   ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
 122
 123   wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
 124
 125   // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
 126   // has a zero usage count.
 127 //  backgroundBrush->RealizeResource();
 128   return (WXHBRUSH) backgroundBrush->GetResourceHandle();
 129 */
 130     return (WXHBRUSH)0;
 131 }
 132
 133 // Shouldn't erase the whole window, since the static box must only paint its
 134 // outline.
 135 void wxStaticBox::OnEraseBackground(wxEraseEvent& event)
 136 {
 137     // If we don't have this (call Default()), we don't paint the background properly.
 138     // If we do have this, we seem to overwrite enclosed controls.
 139     // Is it the WS_CLIPCHILDREN style that's causing the problems?
 140     // Probably - without this style, the background of the window will show through,
 141     // so the control doesn't have to paint it. The window background will always be
 142     // painted before all other controls, therefore there are no problems with
 143     // controls being hidden by the static box.
 144     // So, if we could specify wxCLIP_CHILDREN in window, or not, we could optimise painting better.
 145     // We would assume wxCLIP_CHILDREN in a frame and a scrolled window, but not in a panel.
 146     // Is this too platform-specific?? What else can we do? Not a lot, since we have to pass
 147     // this information from arbitrary wxWindow derivatives, and it depends on what you wish to
 148     // do with the windows.
 149     // Alternatively, just make sure that wxStaticBox is always at the back! There are probably
 150     // few other circumstances where it matters about child clipping. But what about painting onto
 151     // to panel, inside a groupbox? Doesn't appear, because the box wipes it out.
 152     wxWindow *parent = GetParent();
 153 // TODO:
 154 /*
 155     if ( parent && parent->GetHWND() && (::GetWindowLong((HWND) parent->GetHWND(), GWL_STYLE) & WS_CLIPCHILDREN) )
 156     {
 157         // TODO: May in fact need to generate a paint event for inside this
 158         // control's rectangle, otherwise all controls are going to be clipped -
 159         // ugh.
 160         HBRUSH hBrush = ::CreateSolidBrush(PALETTERGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
 161         int mode = ::SetMapMode((HDC) event.GetDC()->GetHDC(), MM_TEXT);
 162
 163         RECT rect;
 164
 165         ::GetClientRect(GetHwnd(), &rect);
 166         ::FillRect ((HDC) event.GetDC()->GetHDC(), &rect, hBrush);
 167         ::DeleteObject(hBrush);
 168         ::SetMapMode((HDC) event.GetDC()->GetHDC(), mode);
 169     }
 170     else
 171     {
 172         event.Skip();
 173     }
 174 */
 175 }
 176
 177 MRESULT wxStaticBox::OS2WindowProc(HWND hwnd, WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 178 {
 179     // TODO:
 180 /*
 181     if ( nMsg == WM_NCHITTEST)
 182     {
 183         int xPos = LOWORD(lParam);  // horizontal position of cursor
 184         int yPos = HIWORD(lParam);  // vertical position of cursor
 185
 186 //        ScreenToClient(&xPos, &yPos);
 187
 188         // Make sure you can drag by the top of the groupbox, but let
 189         // other (enclosed) controls get mouse events also
 190         if (yPos < 10)
 191             return (long)HTCLIENT;
 192     }
 193 */
 194
 195     return wxControl::OS2WindowProc(hwnd, nMsg, wParam, lParam);
 196 }
 197
 198