| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: dcclient.cpp |
| 3 | // Purpose: |
| 4 | // Author: Vaclav Slavik |
| 5 | // RCS-ID: $Id$ |
| 6 | // Copyright: (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com) |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 11 | #pragma implementation "dcclient.h" |
| 12 | #endif |
| 13 | |
| 14 | // For compilers that support precompilation, includes "wx.h". |
| 15 | #include "wx/wxprec.h" |
| 16 | |
| 17 | #ifdef __BORLANDC__ |
| 18 | #pragma hdrstop |
| 19 | #endif |
| 20 | |
| 21 | #ifndef WX_PRECOMP |
| 22 | #include "wx/dcclient.h" |
| 23 | #include "wx/window.h" |
| 24 | #endif |
| 25 | |
| 26 | #include <mgraph.hpp> |
| 27 | |
| 28 | IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC) |
| 29 | IMPLEMENT_DYNAMIC_CLASS(wxClientDC,wxWindowDC) |
| 30 | IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxClientDC) |
| 31 | |
| 32 | wxWindowDC::wxWindowDC(wxWindow *win) : m_wnd(win) |
| 33 | { |
| 34 | MGLDevCtx *dc = win->GetPaintMGLDC(); |
| 35 | |
| 36 | if ( dc ) |
| 37 | { |
| 38 | m_inPaintHandler = TRUE; |
| 39 | |
| 40 | m_globalClippingRegion = win->GetUpdateRegion(); |
| 41 | SetMGLDC(dc, FALSE); |
| 42 | } |
| 43 | else |
| 44 | { |
| 45 | m_inPaintHandler = FALSE; |
| 46 | |
| 47 | dc = new MGLDevCtx(MGL_wmBeginPaint(win->GetHandle())); |
| 48 | |
| 49 | MGLRegion clip; |
| 50 | dc->getClipRegion(clip); |
| 51 | m_globalClippingRegion = wxRegion(clip); |
| 52 | SetMGLDC(dc, TRUE); |
| 53 | // TRUE means that dtor will delete MGLDevCtx object |
| 54 | // but it won't destroy MGLDC returned by MGL_wmBeginPaint because |
| 55 | // ~MGLDevCtx() doesn't call destroy() |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | wxWindowDC::~wxWindowDC() |
| 60 | { |
| 61 | if ( !m_inPaintHandler ) |
| 62 | { |
| 63 | GetMGLDC()->setDC(NULL); |
| 64 | MGL_wmEndPaint(m_wnd->GetHandle()); |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | wxClientDC::wxClientDC(wxWindow *win) : wxWindowDC(win) |
| 69 | { |
| 70 | wxRect r = m_wnd->GetClientRect(); |
| 71 | m_globalClippingRegion.Intersect(r); |
| 72 | SetClippingRegion(m_globalClippingRegion); |
| 73 | SetDeviceOrigin(r.x, r.y); |
| 74 | } |