| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: dcmemory.cpp |
| 3 | // Purpose: wxMemoryDC class |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 01/02/97 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #ifdef __GNUG__ |
| 13 | #pragma implementation "dcmemory.h" |
| 14 | #endif |
| 15 | |
| 16 | #include "wx/dcmemory.h" |
| 17 | #include "wx/settings.h" |
| 18 | #include "wx/utils.h" |
| 19 | |
| 20 | #include <Xm/Xm.h> |
| 21 | |
| 22 | #include "wx/motif/private.h" |
| 23 | |
| 24 | //----------------------------------------------------------------------------- |
| 25 | // wxMemoryDC |
| 26 | //----------------------------------------------------------------------------- |
| 27 | |
| 28 | IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC, wxWindowDC) |
| 29 | |
| 30 | wxMemoryDC::wxMemoryDC(void) |
| 31 | { |
| 32 | m_ok = TRUE; |
| 33 | m_display = wxGetDisplay(); |
| 34 | |
| 35 | Display* display = (Display*) m_display; |
| 36 | |
| 37 | XGCValues gcvalues; |
| 38 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); |
| 39 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); |
| 40 | gcvalues.graphics_exposures = False; |
| 41 | gcvalues.line_width = 1; |
| 42 | m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)), |
| 43 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth, |
| 44 | &gcvalues); |
| 45 | |
| 46 | m_backgroundPixel = (int) gcvalues.background; |
| 47 | |
| 48 | // Get the current Font so we can set it back later |
| 49 | XGCValues valReturn; |
| 50 | XGetGCValues((Display*) m_display, (GC) m_gc, GCFont, &valReturn); |
| 51 | m_oldFont = (WXFont) valReturn.font; |
| 52 | SetBrush (* wxWHITE_BRUSH); |
| 53 | SetPen (* wxBLACK_PEN); |
| 54 | SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT)); |
| 55 | }; |
| 56 | |
| 57 | wxMemoryDC::wxMemoryDC( wxDC* dc ) |
| 58 | { |
| 59 | m_ok = TRUE; |
| 60 | if (dc && dc->IsKindOf(CLASSINFO(wxWindowDC))) |
| 61 | m_display = ((wxWindowDC*)dc)->GetDisplay(); |
| 62 | else |
| 63 | m_display = wxGetDisplay(); |
| 64 | |
| 65 | Display* display = (Display*) m_display; |
| 66 | |
| 67 | XGCValues gcvalues; |
| 68 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); |
| 69 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); |
| 70 | gcvalues.graphics_exposures = False; |
| 71 | gcvalues.line_width = 1; |
| 72 | m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)), |
| 73 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth, |
| 74 | &gcvalues); |
| 75 | |
| 76 | m_backgroundPixel = (int) gcvalues.background; |
| 77 | |
| 78 | // Get the current Font so we can set it back later |
| 79 | XGCValues valReturn; |
| 80 | XGetGCValues((Display*) m_display, (GC) m_gc, GCFont, &valReturn); |
| 81 | m_oldFont = (WXFont) valReturn.font; |
| 82 | SetBrush (* wxWHITE_BRUSH); |
| 83 | SetPen (* wxBLACK_PEN); |
| 84 | }; |
| 85 | |
| 86 | wxMemoryDC::~wxMemoryDC(void) |
| 87 | { |
| 88 | }; |
| 89 | |
| 90 | void wxMemoryDC::SelectObject( const wxBitmap& bitmap ) |
| 91 | { |
| 92 | m_bitmap = bitmap; |
| 93 | |
| 94 | if (m_gc) |
| 95 | XFreeGC((Display*) m_display, (GC) m_gc); |
| 96 | m_gc = (WXGC) NULL; |
| 97 | |
| 98 | if (m_bitmap.Ok() && (bitmap.GetDisplay() == m_display)) |
| 99 | { |
| 100 | m_pixmap = m_bitmap.GetPixmap(); |
| 101 | Display* display = (Display*) m_display; |
| 102 | |
| 103 | XGCValues gcvalues; |
| 104 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); |
| 105 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); |
| 106 | gcvalues.graphics_exposures = False; |
| 107 | gcvalues.line_width = 1; |
| 108 | m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)), |
| 109 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth, |
| 110 | &gcvalues); |
| 111 | |
| 112 | m_backgroundPixel = (int) gcvalues.background; |
| 113 | |
| 114 | // Get the current Font so we can set it back later |
| 115 | XGCValues valReturn; |
| 116 | XGetGCValues((Display*) m_display, (GC) m_gc, GCFont, &valReturn); |
| 117 | m_oldFont = (WXFont) valReturn.font; |
| 118 | |
| 119 | bool oldOpt = GetOptimization(); |
| 120 | SetOptimization(FALSE); |
| 121 | |
| 122 | SetBrush (* wxWHITE_BRUSH); |
| 123 | SetPen (* wxBLACK_PEN); |
| 124 | |
| 125 | SetOptimization(oldOpt); |
| 126 | |
| 127 | m_ok = TRUE; |
| 128 | } |
| 129 | else |
| 130 | { |
| 131 | m_ok = FALSE; |
| 132 | m_pixmap = (WXPixmap) 0; |
| 133 | }; |
| 134 | }; |
| 135 | |
| 136 | void wxMemoryDC::DoGetSize( int *width, int *height ) const |
| 137 | { |
| 138 | if (m_bitmap.Ok()) |
| 139 | { |
| 140 | if (width) (*width) = m_bitmap.GetWidth(); |
| 141 | if (height) (*height) = m_bitmap.GetHeight(); |
| 142 | } |
| 143 | else |
| 144 | { |
| 145 | if (width) (*width) = 0; |
| 146 | if (height) (*height) = 0; |
| 147 | }; |
| 148 | }; |
| 149 | |
| 150 | |