| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: dcmemory.cpp |
| 3 | // Purpose: |
| 4 | // Author: Robert Roebling |
| 5 | // RCS-ID: $Id$ |
| 6 | // Copyright: (c) 1998 Robert Roebling |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 11 | #pragma implementation "dcmemory.h" |
| 12 | #endif |
| 13 | |
| 14 | // For compilers that support precompilation, includes "wx.h". |
| 15 | #include "wx/wxprec.h" |
| 16 | |
| 17 | #include "wx/dcmemory.h" |
| 18 | |
| 19 | #include <gdk/gdk.h> |
| 20 | #include <gtk/gtk.h> |
| 21 | |
| 22 | //----------------------------------------------------------------------------- |
| 23 | // wxMemoryDC |
| 24 | //----------------------------------------------------------------------------- |
| 25 | |
| 26 | IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC,wxWindowDC) |
| 27 | |
| 28 | wxMemoryDC::wxMemoryDC() : wxWindowDC() |
| 29 | { |
| 30 | m_ok = FALSE; |
| 31 | |
| 32 | m_cmap = gtk_widget_get_default_colormap(); |
| 33 | |
| 34 | #ifdef __WXGTK20__ |
| 35 | m_context = gdk_pango_context_get(); |
| 36 | m_layout = pango_layout_new( m_context ); |
| 37 | m_fontdesc = pango_font_description_copy( pango_context_get_font_description( m_context ) ); |
| 38 | #endif |
| 39 | } |
| 40 | |
| 41 | wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) ) |
| 42 | : wxWindowDC() |
| 43 | { |
| 44 | m_ok = FALSE; |
| 45 | |
| 46 | m_cmap = gtk_widget_get_default_colormap(); |
| 47 | |
| 48 | #ifdef __WXGTK20__ |
| 49 | m_context = gdk_pango_context_get(); |
| 50 | m_layout = pango_layout_new( m_context ); |
| 51 | m_fontdesc = pango_font_description_copy( pango_context_get_font_description( m_context ) ); |
| 52 | #endif |
| 53 | } |
| 54 | |
| 55 | wxMemoryDC::~wxMemoryDC() |
| 56 | { |
| 57 | } |
| 58 | |
| 59 | void wxMemoryDC::SelectObject( const wxBitmap& bitmap ) |
| 60 | { |
| 61 | Destroy(); |
| 62 | m_selected = bitmap; |
| 63 | if (m_selected.Ok()) |
| 64 | { |
| 65 | if (m_selected.GetPixmap()) |
| 66 | { |
| 67 | m_window = m_selected.GetPixmap(); |
| 68 | } |
| 69 | else |
| 70 | { |
| 71 | m_window = m_selected.GetBitmap(); |
| 72 | } |
| 73 | |
| 74 | m_isMemDC = TRUE; |
| 75 | |
| 76 | SetUpDC(); |
| 77 | } |
| 78 | else |
| 79 | { |
| 80 | m_ok = FALSE; |
| 81 | m_window = (GdkWindow *) NULL; |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | void wxMemoryDC::SetPen( const wxPen& penOrig ) |
| 86 | { |
| 87 | wxPen pen( penOrig ); |
| 88 | if ( m_selected.Ok() && |
| 89 | m_selected.GetBitmap() && |
| 90 | (pen != *wxTRANSPARENT_PEN) ) |
| 91 | { |
| 92 | pen.SetColour( pen.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE ); |
| 93 | } |
| 94 | |
| 95 | wxWindowDC::SetPen( pen ); |
| 96 | } |
| 97 | |
| 98 | void wxMemoryDC::SetBrush( const wxBrush& brushOrig ) |
| 99 | { |
| 100 | wxBrush brush( brushOrig ); |
| 101 | if ( m_selected.Ok() && |
| 102 | m_selected.GetBitmap() && |
| 103 | (brush != *wxTRANSPARENT_BRUSH) ) |
| 104 | { |
| 105 | brush.SetColour( brush.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE); |
| 106 | } |
| 107 | |
| 108 | wxWindowDC::SetBrush( brush ); |
| 109 | } |
| 110 | |
| 111 | void wxMemoryDC::SetBackground( const wxBrush& brushOrig ) |
| 112 | { |
| 113 | wxBrush brush(brushOrig); |
| 114 | |
| 115 | if ( m_selected.Ok() && |
| 116 | m_selected.GetBitmap() && |
| 117 | (brush != *wxTRANSPARENT_BRUSH) ) |
| 118 | { |
| 119 | brush.SetColour( brush.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE ); |
| 120 | } |
| 121 | |
| 122 | wxWindowDC::SetBackground( brush ); |
| 123 | } |
| 124 | |
| 125 | void wxMemoryDC::SetTextForeground( const wxColour& col ) |
| 126 | { |
| 127 | if ( m_selected.Ok() && m_selected.GetBitmap() ) |
| 128 | { |
| 129 | wxWindowDC::SetTextForeground( col == *wxWHITE ? *wxBLACK : *wxWHITE); |
| 130 | } |
| 131 | else |
| 132 | { |
| 133 | wxWindowDC::SetTextForeground( col ); |
| 134 | } |
| 135 | } |
| 136 | |
| 137 | void wxMemoryDC::SetTextBackground( const wxColour &col ) |
| 138 | { |
| 139 | if (m_selected.Ok() && m_selected.GetBitmap()) |
| 140 | { |
| 141 | wxWindowDC::SetTextBackground( col == *wxWHITE ? *wxBLACK : *wxWHITE ); |
| 142 | } |
| 143 | else |
| 144 | { |
| 145 | wxWindowDC::SetTextBackground( col ); |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | void wxMemoryDC::DoGetSize( int *width, int *height ) const |
| 150 | { |
| 151 | if (m_selected.Ok()) |
| 152 | { |
| 153 | if (width) (*width) = m_selected.GetWidth(); |
| 154 | if (height) (*height) = m_selected.GetHeight(); |
| 155 | } |
| 156 | else |
| 157 | { |
| 158 | if (width) (*width) = 0; |
| 159 | if (height) (*height) = 0; |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | |