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