/////////////////////////////////////////////////////////////////////////////
// Name: dcclient.cpp
// Purpose: wxClientDC class
-// Author: Julian Smart
+// Author: David Webster
// Modified by:
-// Created: 01/02/97
+// Created: 09/21/99
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
+// Copyright: (c) David Webster
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "dcclient.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
-#ifdef __BORLANDC__
- #pragma hdrstop
-#endif
-
#include "wx/string.h"
#include "wx/log.h"
#include "wx/window.h"
+#include "wx/app.h"
-#include "wx/msw/private.h"
+#include "wx/os2/private.h"
#include "wx/dcclient.h"
struct WXDLLEXPORT wxPaintDCInfo
{
- wxPaintDCInfo(wxWindow *win, wxDC *dc)
+ wxPaintDCInfo( wxWindow* pWin
+ ,wxDC* pDC
+ )
{
- hwnd = win->GetHWND();
- hdc = dc->GetHDC();
- count = 1;
+ m_hWnd = pWin->GetHWND();
+ m_hDC = pDC->GetHDC();
+ m_nCount = 1;
}
- WXHWND hwnd; // window for this DC
- WXHDC hdc; // the DC handle
- size_t count; // usage count
-};
+ WXHWND m_hWnd; // window for this DC
+ WXHDC m_hDC; // the DC handle
+ size_t m_nCount; // usage count
+}; // end of wxPaintDCInfot
#include "wx/arrimpl.cpp"
// macros
// ----------------------------------------------------------------------------
-#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC)
IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxWindowDC)
IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxWindowDC)
-#endif
// ----------------------------------------------------------------------------
// global variables
// ----------------------------------------------------------------------------
-static PAINTSTRUCT g_paintStruct;
+static RECT g_paintStruct;
#ifdef __WXDEBUG__
// a global variable which we check to verify that wxPaintDC are only
wxWindowDC::wxWindowDC()
{
- m_canvas = NULL;
+ m_pCanvas = NULL;
}
-wxWindowDC::wxWindowDC(wxWindow *the_canvas)
+wxWindowDC::wxWindowDC(
+ wxWindow* pTheCanvas
+)
{
- m_canvas = the_canvas;
- m_hDC = (WXHDC) ::WinOpenWindowDC(GetWinHwnd(the_canvas) );
- m_hDCCount++;
+ ERRORID vError;
+ wxString sError;
- SetBackground(wxBrush(m_canvas->GetBackgroundColour(), wxSOLID));
-}
+ m_pCanvas = pTheCanvas;
+ m_hDC = (WXHDC) ::WinOpenWindowDC(GetWinHwnd(pTheCanvas) );
-wxWindowDC::~wxWindowDC()
+ //
+ // default under PM is that Window and Client DC's are the same
+ // so we offer a separate Presentation Space to use for the
+ // entire window. Otherwise, calling BeginPaint will just create
+ // chached-micro client presentation space
+ //
+ m_hPS = ::GpiCreatePS( vHabmain
+ ,m_hDC
+ ,&m_PageSize
+ ,PU_PELS | GPIF_LONG | GPIA_ASSOC
+ );
+ ::GpiAssociate(m_hPS, NULLHANDLE);
+ ::GpiAssociate(m_hPS, m_hDC);
+
+ //
+ // Set the wxWindows color table
+ //
+ if (!::GpiCreateLogColorTable( m_hPS
+ ,0L
+ ,LCOLF_CONSECRGB
+ ,0L
+ ,(LONG)wxTheColourDatabase->m_nSize
+ ,(PLONG)wxTheColourDatabase->m_palTable
+ ))
+ {
+ vError = ::WinGetLastError(vHabmain);
+ sError = wxPMErrorToStr(vError);
+ wxLogError("Unable to set current color table. Error: %s\n", sError);
+ }
+ ::GpiCreateLogColorTable( m_hPS
+ ,0L
+ ,LCOLF_RGB
+ ,0L
+ ,0L
+ ,NULL
+ );
+ ::WinQueryWindowRect( GetWinHwnd(m_pCanvas)
+ ,&m_vRclPaint
+ );
+ InitDC();
+} // end of wxWindowDC::wxWindowDC
+
+void wxWindowDC::InitDC()
{
- if (m_canvas && m_hDC)
- {
- SelectOldObjects(m_hDC);
+ wxColour vColor;
+ vColor.InitFromName("BLACK");
+ m_pen.SetColour(vColor);
+ vColor.Set("WHITE");
+ m_brush.SetColour(vColor);
//
- // In PM one does not explicitly close or release an open WindowDC
- // They automatically close with the window, unless explicitly detached
+ // The background mode is only used for text background and is set in
+ // DrawText() to OPAQUE as required, otherwise always TRANSPARENT,
//
- m_hDC = 0;
- }
+ ::GpiSetBackMix(GetHPS(), BM_LEAVEALONE);
- m_hDCCount--;
-}
+ //
+ // Default bg colour is pne of the window
+ //
+ SetBackground(wxBrush(m_pCanvas->GetBackgroundColour(), wxSOLID));
+} // end of wxWindowDC::InitDC
+
+void wxWindowDC::DoGetSize(
+ int* pnWidth
+, int* pnHeight
+) const
+{
+ wxCHECK_RET( m_pCanvas, _T("wxWindowDC without a window?") );
+ m_pCanvas->GetSize( pnWidth
+ ,pnHeight
+ );
+} // end of wxWindowDC::DoGetSize
// ----------------------------------------------------------------------------
// wxClientDC
wxClientDC::wxClientDC()
{
- m_canvas = NULL;
+ m_pCanvas = NULL;
}
-wxClientDC::wxClientDC(wxWindow *the_canvas)
+wxClientDC::wxClientDC(
+ wxWindow* pTheCanvas
+)
{
- m_canvas = the_canvas;
- m_hDC = (WXHDC) ::GetDC(GetWinHwnd(the_canvas));
+ SIZEL vSizl = { 0,0};
+ ERRORID vError;
+ wxString sError;
- // the background mode is only used for text background
- // and is set in DrawText() to OPAQUE as required, other-
- // wise always TRANSPARENT, RR
- ::SetBkMode( GetHdc(), TRANSPARENT );
+ m_pCanvas = pTheCanvas;
- SetBackground(wxBrush(m_canvas->GetBackgroundColour(), wxSOLID));
-}
+ //
+ // default under PM is that Window and Client DC's are the same
+ //
+ m_hDC = (WXHDC) ::WinOpenWindowDC(GetWinHwnd(pTheCanvas));
+ m_hPS = ::GpiCreatePS( wxGetInstance()
+ ,m_hDC
+ ,&vSizl
+ ,PU_PELS | GPIF_LONG | GPIA_ASSOC
+ );
+
+ // Set the wxWindows color table
+ if (!::GpiCreateLogColorTable( m_hPS
+ ,0L
+ ,LCOLF_CONSECRGB
+ ,0L
+ ,(LONG)wxTheColourDatabase->m_nSize
+ ,(PLONG)wxTheColourDatabase->m_palTable
+ ))
+ {
+ vError = ::WinGetLastError(vHabmain);
+ sError = wxPMErrorToStr(vError);
+ wxLogError("Unable to set current color table. Error: %s\n", sError);
+ }
+ ::GpiCreateLogColorTable( m_hPS
+ ,0L
+ ,LCOLF_RGB
+ ,0L
+ ,0L
+ ,NULL
+ );
+ //
+ // Set the DC/PS rectangle
+ //
+ ::WinQueryWindowRect( GetWinHwnd(m_pCanvas)
+ ,&m_vRclPaint
+ );
+ InitDC();
+} // end of wxClientDC::wxClientDC
+
+void wxClientDC::InitDC()
+{
+ wxWindowDC::InitDC();
+
+ // in wxUniv build we must manually do some DC adjustments usually
+ // performed by Windows for us
+#ifdef __WXUNIVERSAL__
+ wxPoint ptOrigin = m_pCanvas->GetClientAreaOrigin();
+ if ( ptOrigin.x || ptOrigin.y )
+ {
+ // no need to shift DC origin if shift is null
+ SetDeviceOrigin(ptOrigin.x, ptOrigin.y);
+ }
+
+ // clip the DC to avoid overwriting the non client area
+ SetClippingRegion(wxPoint(0, 0), m_pCanvas->GetClientSize());
+#endif // __WXUNIVERSAL__
+} // end of wxClientDC::InitDC
wxClientDC::~wxClientDC()
{
- if ( m_canvas && GetHdc() )
- {
- SelectOldObjects(m_hDC);
+} // end of wxClientDC::~wxClientDC
- ::ReleaseDC(GetWinHwnd(m_canvas), GetHdc());
- m_hDC = 0;
- }
-}
+void wxClientDC::DoGetSize(
+ int* pnWidth
+, int* pnHeight
+) const
+{
+ wxCHECK_RET( m_pCanvas, _T("wxWindowDC without a window?") );
+ m_pCanvas->GetClientSize( pnWidth
+ ,pnHeight
+ );
+} // end of wxClientDC::DoGetSize
// ----------------------------------------------------------------------------
// wxPaintDC
// ----------------------------------------------------------------------------
-// VZ: initial implementation (by JACS) only remembered the last wxPaintDC
-// created and tried to reuse - this was supposed to take care of a
-// situation when a derived class OnPaint() calls base class OnPaint()
-// because in this case ::BeginPaint() shouldn't be called second time.
-//
-// I'm not sure how useful this is, however we must remember the HWND
-// associated with the last HDC as well - otherwise we may (and will!) try
-// to reuse the HDC for another HWND which is a nice recipe for disaster.
-//
-// So we store a list of windows for which we already have the DC and not
-// just one single hDC. This seems to work, but I'm really not sure about
-// the usefullness of the whole idea - IMHO it's much better to not call
-// base class OnPaint() at all, or, if we really want to allow it, add a
-// "wxPaintDC *" parameter to wxPaintEvent which should be used if it's
-// !NULL instead of creating a new DC.
-
wxArrayDCInfo wxPaintDC::ms_cache;
wxPaintDC::wxPaintDC()
{
- m_canvas = NULL;
+ m_pCanvas = NULL;
m_hDC = 0;
}
-wxPaintDC::wxPaintDC(wxWindow *canvas)
+wxPaintDC::wxPaintDC(
+ wxWindow* pCanvas
+)
{
- wxCHECK_RET( canvas, _T("NULL canvas in wxPaintDC ctor") );
+ wxCHECK_RET(pCanvas, wxT("NULL canvas in wxPaintDC ctor"));
#ifdef __WXDEBUG__
- if ( g_isPainting <= 0 )
+ if (g_isPainting <= 0)
{
- wxFAIL_MSG( _T("wxPaintDC may be created only in EVT_PAINT handler!") );
-
+ wxFAIL_MSG( wxT("wxPaintDC may be created only in EVT_PAINT handler!") );
return;
}
#endif // __WXDEBUG__
- m_canvas = canvas;
+ m_pCanvas = pCanvas;
+
+ //
+ // Do we have a DC for this window in the cache?
+ //
+ wxPaintDCInfo* pInfo = FindInCache();
- // do we have a DC for this window in the cache?
- wxPaintDCInfo *info = FindInCache();
- if ( info )
+ if (pInfo)
{
- m_hDC = info->hdc;
- info->count++;
+ m_hDC = pInfo->m_hDC;
+ pInfo->m_nCount++;
}
else // not in cache, create a new one
{
- m_hDC = (WXHDC)::BeginPaint(GetWinHwnd(m_canvas), &g_paintStruct);
- ms_cache.Add(new wxPaintDCInfo(m_canvas, this));
- }
+ HPS hPS;
- // the background mode is only used for text background
- // and is set in DrawText() to OPAQUE as required, other-
- // wise always TRANSPARENT, RR
- ::SetBkMode( GetHdc(), TRANSPARENT );
+ hPS = ::WinBeginPaint( GetWinHwnd(m_pCanvas)
+ ,NULLHANDLE
+ ,&g_paintStruct
+ );
+ if(hPS)
+ {
+ m_hOldPS = m_hPS;
+ m_hPS = hPS;
+ ::GpiCreateLogColorTable( m_hPS
+ ,0L
+ ,LCOLF_CONSECRGB
+ ,0L
+ ,(LONG)wxTheColourDatabase->m_nSize
+ ,(PLONG)wxTheColourDatabase->m_palTable
+ );
+ ::GpiCreateLogColorTable( m_hPS
+ ,0L
+ ,LCOLF_RGB
+ ,0L
+ ,0L
+ ,NULL
+ );
+
+ ::WinFillRect(hPS, &g_paintStruct, m_pCanvas->GetBackgroundColour().GetPixel());
+ ::WinQueryWindowRect( GetWinHwnd(m_pCanvas)
+ ,&m_vRclPaint
+ );
+ }
- SetBackground(wxBrush(m_canvas->GetBackgroundColour(), wxSOLID));
-}
+ m_bIsPaintTime = TRUE;
+ m_hDC = (WXHDC) -1; // to satisfy those anonizmous efforts
+ ms_cache.Add(new wxPaintDCInfo(m_pCanvas, this));
+ }
+ InitDC();
+} // end of wxPaintDC::wxPaintDC
wxPaintDC::~wxPaintDC()
{
{
SelectOldObjects(m_hDC);
- size_t index;
- wxPaintDCInfo *info = FindInCache(&index);
+ size_t nIndex;
+ wxPaintDCInfo* pInfo = FindInCache(&nIndex);
- wxCHECK_RET( info, _T("existing DC should have a cache entry") );
+ wxCHECK_RET( pInfo, wxT("existing DC should have a cache entry") );
- if ( !--info->count )
+ if ( !--pInfo->m_nCount )
{
- ::EndPaint(GetWinHwnd(m_canvas), &g_paintStruct);
-
- ms_cache.Remove(index);
+ ::WinEndPaint(m_hPS);
+ m_hPS = m_hOldPS;
+ m_bIsPaintTime = FALSE;
+ ms_cache.RemoveAt(nIndex);
}
//else: cached DC entry is still in use
}
}
-wxPaintDCInfo *wxPaintDC::FindInCache(size_t *index) const
+wxPaintDCInfo* wxPaintDC::FindInCache(
+ size_t* pIndex
+) const
{
- wxPaintDCInfo *info = NULL;
- size_t nCache = ms_cache.GetCount();
- for ( size_t n = 0; n < nCache; n++ )
+ wxPaintDCInfo* pInfo = NULL;
+ size_t nCache = ms_cache.GetCount();
+
+ for (size_t n = 0; n < nCache; n++)
{
- info = &ms_cache[n];
- if ( info->hwnd == m_canvas->GetHWND() )
+ pInfo = &ms_cache[n];
+ if (pInfo->m_hWnd == m_pCanvas->GetHWND())
{
- if ( index )
- *index = n;
+ if (pIndex)
+ *pIndex = n;
break;
}
}
+ return pInfo;
+} // end of wxPaintDC::FindInCache
+
+// find the entry for this DC in the cache (keyed by the window)
+WXHDC wxPaintDC::FindDCInCache(
+ wxWindow* pWin
+)
+{
+ wxPaintDCInfo* pInfo = NULL;
+ size_t nCache = ms_cache.GetCount();
+
+ for (size_t n = 0; n < nCache; n++)
+ {
+ pInfo = &ms_cache[n];
+ if (pInfo->m_hWnd == pWin->GetHWND())
+ {
+ return pInfo->m_hDC;
+ }
+ }
+ return 0;
+} // end of wxPaintDC::FindInCache
- return info;
-}
projects / wxWidgets.git / blobdiff