X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/77ffb5937e89927b621128789401db8921fe580f..b404a8f3b072129c107c6d9a5e0f6f53cd34807b:/src/msw/dcclient.cpp diff --git a/src/msw/dcclient.cpp b/src/msw/dcclient.cpp index 99ec584b4a..4564a189d1 100644 --- a/src/msw/dcclient.cpp +++ b/src/msw/dcclient.cpp @@ -1,12 +1,12 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: dcclient.cpp +// Name: src/msw/dcclient.cpp // Purpose: wxClientDC class // Author: Julian Smart // Modified by: // Created: 01/02/97 // RCS-ID: $Id$ // Copyright: (c) Julian Smart -// Licence: wxWidgets licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // =========================================================================== @@ -17,10 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma implementation "dcclient.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -28,13 +24,16 @@ #pragma hdrstop #endif -#include "wx/string.h" -#include "wx/log.h" -#include "wx/window.h" +#include "wx/dcclient.h" +#include "wx/msw/dcclient.h" -#include "wx/msw/private.h" +#ifndef WX_PRECOMP + #include "wx/string.h" + #include "wx/log.h" + #include "wx/window.h" +#endif -#include "wx/dcclient.h" +#include "wx/msw/private.h" // ---------------------------------------------------------------------------- // array/list types @@ -42,7 +41,7 @@ struct WXDLLEXPORT wxPaintDCInfo { - wxPaintDCInfo(wxWindow *win, wxDC *dc) + wxPaintDCInfo(wxWindow *win, wxPaintDCImpl *dc) { hwnd = win->GetHWND(); hdc = dc->GetHDC(); @@ -56,93 +55,91 @@ struct WXDLLEXPORT wxPaintDCInfo #include "wx/arrimpl.cpp" -WX_DEFINE_OBJARRAY(wxArrayDCInfo); +WX_DEFINE_OBJARRAY(wxArrayDCInfo) // ---------------------------------------------------------------------------- // macros // ---------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC) -IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxWindowDC) -IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxClientDC) -IMPLEMENT_CLASS(wxPaintDCEx, wxPaintDC) - // ---------------------------------------------------------------------------- // global variables // ---------------------------------------------------------------------------- static PAINTSTRUCT g_paintStruct; -#ifdef __WXDEBUG__ +#ifdef wxHAS_PAINT_DEBUG // a global variable which we check to verify that wxPaintDC are only - // created in resopnse to WM_PAINT message - doing this from elsewhere is a + // created in response to WM_PAINT message - doing this from elsewhere is a // common programming error among wxWidgets programmers and might lead to // very subtle and difficult to debug refresh/repaint bugs. int g_isPainting = 0; -#endif // __WXDEBUG__ +#endif // wxHAS_PAINT_DEBUG // =========================================================================== // implementation // =========================================================================== // ---------------------------------------------------------------------------- -// wxWindowDC +// wxMSWWindowDCImpl // ---------------------------------------------------------------------------- -wxWindowDC::wxWindowDC() +IMPLEMENT_ABSTRACT_CLASS(wxWindowDCImpl, wxMSWDCImpl) + +wxWindowDCImpl::wxWindowDCImpl( wxDC *owner ) : + wxMSWDCImpl( owner ) { - m_canvas = NULL; } -wxWindowDC::wxWindowDC(wxWindow *canvas) +wxWindowDCImpl::wxWindowDCImpl( wxDC *owner, wxWindow *window ) : + wxMSWDCImpl( owner ) { - wxCHECK_RET( canvas, _T("invalid window in wxWindowDC") ); + wxCHECK_RET( window, wxT("invalid window in wxWindowDCImpl") ); - m_canvas = canvas; - m_hDC = (WXHDC) ::GetWindowDC(GetHwndOf(m_canvas)); + m_window = window; + m_hDC = (WXHDC) ::GetWindowDC(GetHwndOf(m_window)); // m_bOwnsDC was already set to false in the base class ctor, so the DC // will be released (and not deleted) in ~wxDC InitDC(); } -void wxWindowDC::InitDC() +void wxWindowDCImpl::InitDC() { // the background mode is only used for text background and is set in // DrawText() to OPAQUE as required, otherwise always TRANSPARENT, ::SetBkMode(GetHdc(), TRANSPARENT); - // default bg colour is pne of the window - SetBackground(wxBrush(m_canvas->GetBackgroundColour(), wxSOLID)); - // since we are a window dc we need to grab the palette from the window #if wxUSE_PALETTE InitializePalette(); #endif } -void wxWindowDC::DoGetSize(int *width, int *height) const +void wxWindowDCImpl::DoGetSize(int *width, int *height) const { - wxCHECK_RET( m_canvas, _T("wxWindowDC without a window?") ); + wxCHECK_RET( m_window, wxT("wxWindowDCImpl without a window?") ); - m_canvas->GetSize(width, height); + m_window->GetSize(width, height); } // ---------------------------------------------------------------------------- -// wxClientDC +// wxClientDCImpl // ---------------------------------------------------------------------------- -wxClientDC::wxClientDC() +IMPLEMENT_ABSTRACT_CLASS(wxClientDCImpl, wxWindowDCImpl) + +wxClientDCImpl::wxClientDCImpl( wxDC *owner ) : + wxWindowDCImpl( owner ) { - m_canvas = NULL; } -wxClientDC::wxClientDC(wxWindow *canvas) +wxClientDCImpl::wxClientDCImpl( wxDC *owner, wxWindow *window ) : + wxWindowDCImpl( owner ) { - wxCHECK_RET( canvas, _T("invalid window in wxClientDC") ); + wxCHECK_RET( window, wxT("invalid window in wxClientDCImpl") ); - m_canvas = canvas; - m_hDC = (WXHDC)::GetDC(GetHwndOf(m_canvas)); + m_window = window; + m_hDC = (WXHDC)::GetDC(GetHwndOf(window)); // m_bOwnsDC was already set to false in the base class ctor, so the DC // will be released (and not deleted) in ~wxDC @@ -150,9 +147,9 @@ wxClientDC::wxClientDC(wxWindow *canvas) InitDC(); } -void wxClientDC::InitDC() +void wxClientDCImpl::InitDC() { - wxWindowDC::InitDC(); + wxWindowDCImpl::InitDC(); // in wxUniv build we must manually do some DC adjustments usually // performed by Windows for us @@ -161,7 +158,7 @@ void wxClientDC::InitDC() // Windows CE because they're just another control there, not anything // special as usually under Windows #if defined(__WXUNIVERSAL__) || defined(__WXWINCE__) - wxPoint ptOrigin = m_canvas->GetClientAreaOrigin(); + wxPoint ptOrigin = m_window->GetClientAreaOrigin(); if ( ptOrigin.x || ptOrigin.y ) { // no need to shift DC origin if shift is null @@ -169,23 +166,24 @@ void wxClientDC::InitDC() } // clip the DC to avoid overwriting the non client area - SetClippingRegion(wxPoint(0, 0), m_canvas->GetClientSize()); + wxSize size = m_window->GetClientSize(); + DoSetClippingRegion(0, 0, size.x, size.y); #endif // __WXUNIVERSAL__ || __WXWINCE__ } -wxClientDC::~wxClientDC() +wxClientDCImpl::~wxClientDCImpl() { } -void wxClientDC::DoGetSize(int *width, int *height) const +void wxClientDCImpl::DoGetSize(int *width, int *height) const { - wxCHECK_RET( m_canvas, _T("wxClientDC without a window?") ); + wxCHECK_RET( m_window, wxT("wxClientDCImpl without a window?") ); - m_canvas->GetClientSize(width, height); + m_window->GetClientSize(width, height); } // ---------------------------------------------------------------------------- -// wxPaintDC +// wxPaintDCImpl // ---------------------------------------------------------------------------- // VZ: initial implementation (by JACS) only remembered the last wxPaintDC @@ -204,27 +202,36 @@ void wxClientDC::DoGetSize(int *width, int *height) const // "wxPaintDC *" parameter to wxPaintEvent which should be used if it's // !NULL instead of creating a new DC. -wxArrayDCInfo wxPaintDC::ms_cache; +IMPLEMENT_ABSTRACT_CLASS(wxPaintDCImpl, wxClientDCImpl) -wxPaintDC::wxPaintDC() +wxArrayDCInfo wxPaintDCImpl::ms_cache; + +wxPaintDCImpl::wxPaintDCImpl( wxDC *owner ) : + wxClientDCImpl( owner ) { - m_canvas = NULL; } -wxPaintDC::wxPaintDC(wxWindow *canvas) +wxPaintDCImpl::wxPaintDCImpl( wxDC *owner, wxWindow *window ) : + wxClientDCImpl( owner ) { - wxCHECK_RET( canvas, wxT("NULL canvas in wxPaintDC ctor") ); + wxCHECK_RET( window, wxT("NULL canvas in wxPaintDCImpl ctor") ); -#ifdef __WXDEBUG__ +#ifdef wxHAS_PAINT_DEBUG if ( g_isPainting <= 0 ) { - wxFAIL_MSG( wxT("wxPaintDC may be created only in EVT_PAINT handler!") ); + wxFAIL_MSG( wxT("wxPaintDCImpl may be created only in EVT_PAINT handler!") ); return; } -#endif // __WXDEBUG__ +#endif // wxHAS_PAINT_DEBUG + + // see comments in src/msw/window.cpp where this is defined + extern bool wxDidCreatePaintDC; + + wxDidCreatePaintDC = true; - m_canvas = canvas; + + m_window = window; // do we have a DC for this window in the cache? wxPaintDCInfo *info = FindInCache(); @@ -235,18 +242,24 @@ wxPaintDC::wxPaintDC(wxWindow *canvas) } else // not in cache, create a new one { - m_hDC = (WXHDC)::BeginPaint(GetHwndOf(m_canvas), &g_paintStruct); + m_hDC = (WXHDC)::BeginPaint(GetHwndOf(m_window), &g_paintStruct); if (m_hDC) - ms_cache.Add(new wxPaintDCInfo(m_canvas, this)); + ms_cache.Add(new wxPaintDCInfo(m_window, this)); } - // (re)set the DC parameters. // Note: at this point m_hDC can be NULL under MicroWindows, when dragging. - if (GetHDC()) - InitDC(); + if (!GetHDC()) + return; + + // (re)set the DC parameters. + InitDC(); + + // the HDC can have a clipping box (which we didn't set), make sure our + // DoGetClippingBox() checks for it + m_clipping = true; } -wxPaintDC::~wxPaintDC() +wxPaintDCImpl::~wxPaintDCImpl() { if ( m_hDC ) { @@ -257,9 +270,9 @@ wxPaintDC::~wxPaintDC() wxCHECK_RET( info, wxT("existing DC should have a cache entry") ); - if ( !--info->count ) + if ( --info->count == 0 ) { - ::EndPaint(GetHwndOf(m_canvas), &g_paintStruct); + ::EndPaint(GetHwndOf(m_window), &g_paintStruct); ms_cache.RemoveAt(index); @@ -275,14 +288,14 @@ wxPaintDC::~wxPaintDC() } } -wxPaintDCInfo *wxPaintDC::FindInCache(size_t *index) const +wxPaintDCInfo *wxPaintDCImpl::FindInCache(size_t *index) const { wxPaintDCInfo *info = NULL; size_t nCache = ms_cache.GetCount(); for ( size_t n = 0; n < nCache; n++ ) { wxPaintDCInfo *info1 = &ms_cache[n]; - if ( info1->hwnd == m_canvas->GetHWND() ) + if ( info1->hwnd == m_window->GetHWND() ) { info = info1; if ( index ) @@ -295,7 +308,7 @@ wxPaintDCInfo *wxPaintDC::FindInCache(size_t *index) const } // find the entry for this DC in the cache (keyed by the window) -WXHDC wxPaintDC::FindDCInCache(wxWindow* win) +WXHDC wxPaintDCImpl::FindDCInCache(wxWindow* win) { size_t nCache = ms_cache.GetCount(); for ( size_t n = 0; n < nCache; n++ ) @@ -312,49 +325,70 @@ WXHDC wxPaintDC::FindDCInCache(wxWindow* win) /* * wxPaintDCEx */ - -// TODO: don't duplicate wxPaintDC code here!! -wxPaintDCEx::wxPaintDCEx(wxWindow *canvas, WXHDC dc) : saveState(0) +// TODO: don't duplicate wxPaintDCImpl code here!! + +class wxPaintDCExImpl: public wxPaintDCImpl { - wxCHECK_RET( dc, wxT("wxPaintDCEx requires an existing device context") ); +public: + wxPaintDCExImpl( wxDC *owner, wxWindow *window, WXHDC dc ); + ~wxPaintDCExImpl(); - m_canvas = canvas; + int m_saveState; +}; - wxPaintDCInfo *info = FindInCache(); - if ( info ) - { - m_hDC = info->hdc; - info->count++; - } - else // not in cache, create a new one - { - m_hDC = dc; - ms_cache.Add(new wxPaintDCInfo(m_canvas, this)); - saveState = SaveDC((HDC) dc); - } + +IMPLEMENT_ABSTRACT_CLASS(wxPaintDCEx,wxPaintDC) + +wxPaintDCEx::wxPaintDCEx(wxWindow *window, WXHDC dc) + : wxPaintDC(new wxPaintDCExImpl(this, window, dc)) +{ } -wxPaintDCEx::~wxPaintDCEx() +wxPaintDCExImpl::wxPaintDCExImpl(wxDC *owner, wxWindow *window, WXHDC dc) + : wxPaintDCImpl( owner ) { - size_t index; - wxPaintDCInfo *info = FindInCache(&index); + wxCHECK_RET( dc, wxT("wxPaintDCEx requires an existing device context") ); - wxCHECK_RET( info, wxT("existing DC should have a cache entry") ); + m_saveState = 0; - if ( !--info->count ) - { - RestoreDC((HDC) m_hDC, saveState); - ms_cache.RemoveAt(index); + m_window = window; - // Reduce the number of bogus reports of non-freed memory - // at app exit - if (ms_cache.IsEmpty()) - ms_cache.Clear(); - } - //else: cached DC entry is still in use + wxPaintDCInfo *info = FindInCache(); + if ( info ) + { + m_hDC = info->hdc; + info->count++; + } + else // not in cache, create a new one + { + m_hDC = dc; + ms_cache.Add(new wxPaintDCInfo(m_window, this)); + m_saveState = SaveDC((HDC) dc); + } +} - // prevent the base class dtor from ReleaseDC()ing it again - m_hDC = 0; +wxPaintDCExImpl::~wxPaintDCExImpl() +{ + size_t index; + wxPaintDCInfo *info = FindInCache(&index); + + wxCHECK_RET( info, wxT("existing DC should have a cache entry") ); + + if ( --info->count == 0 ) + { + RestoreDC((HDC) m_hDC, m_saveState); + ms_cache.RemoveAt(index); + + // Reduce the number of bogus reports of non-freed memory + // at app exit + if (ms_cache.IsEmpty()) + ms_cache.Clear(); + } + //else: cached DC entry is still in use + + // prevent the base class dtor from ReleaseDC()ing it again + m_hDC = 0; } +