///////////////////////////////////////////////////////////////////////////// // Name: src/gtk/dcmemory.cpp // Purpose: // Author: Robert Roebling // RCS-ID: $Id: dcmemory.cpp 42755 2006-10-30 19:41:46Z VZ $ // Copyright: (c) 1998 Robert Roebling // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #include "wx/dcmemory.h" #include #include //----------------------------------------------------------------------------- // wxMemoryDC //----------------------------------------------------------------------------- IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC,wxWindowDC) void wxMemoryDC::Init() { m_ok = false; m_cmap = gtk_widget_get_default_colormap(); m_context = gdk_pango_context_get(); // Note: The Sun customised version of Pango shipping with Solaris 10 // crashes if the language is left NULL (see bug 1374114) pango_context_set_language( m_context, gtk_get_default_language() ); m_layout = pango_layout_new( m_context ); m_fontdesc = pango_font_description_copy( pango_context_get_font_description( m_context ) ); } wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) ) : wxWindowDC() { Init(); } wxMemoryDC::~wxMemoryDC() { g_object_unref(m_context); } void wxMemoryDC::DoSelect( const wxBitmap& bitmap ) { Destroy(); m_selected = bitmap; if (m_selected.Ok()) { m_window = m_selected.GetPixmap(); m_selected.PurgeOtherRepresentations(wxBitmap::Pixmap); m_isMemDC = true; SetUpDC(); } else { m_ok = false; m_window = (GdkWindow *) NULL; } } void wxMemoryDC::SetPen( const wxPen& penOrig ) { wxPen pen( penOrig ); if ( m_selected.Ok() && m_selected.GetDepth() == 1 && (pen != *wxTRANSPARENT_PEN) ) { pen.SetColour( pen.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE ); } wxWindowDC::SetPen( pen ); } void wxMemoryDC::SetBrush( const wxBrush& brushOrig ) { wxBrush brush( brushOrig ); if ( m_selected.Ok() && m_selected.GetDepth() == 1 && (brush != *wxTRANSPARENT_BRUSH) ) { brush.SetColour( brush.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE); } wxWindowDC::SetBrush( brush ); } void wxMemoryDC::SetBackground( const wxBrush& brushOrig ) { wxBrush brush(brushOrig); if ( m_selected.Ok() && m_selected.GetDepth() == 1 && (brush != *wxTRANSPARENT_BRUSH) ) { brush.SetColour( brush.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE ); } wxWindowDC::SetBackground( brush ); } void wxMemoryDC::SetTextForeground( const wxColour& col ) { if ( m_selected.Ok() && m_selected.GetDepth() == 1 ) { wxWindowDC::SetTextForeground( col == *wxWHITE ? *wxBLACK : *wxWHITE); } else { wxWindowDC::SetTextForeground( col ); } } void wxMemoryDC::SetTextBackground( const wxColour &col ) { if (m_selected.Ok() && m_selected.GetDepth() == 1) { wxWindowDC::SetTextBackground( col == *wxWHITE ? *wxBLACK : *wxWHITE ); } else { wxWindowDC::SetTextBackground( col ); } } void wxMemoryDC::DoGetSize( int *width, int *height ) const { if (m_selected.Ok()) { if (width) (*width) = m_selected.GetWidth(); if (height) (*height) = m_selected.GetHeight(); } else { if (width) (*width) = 0; if (height) (*height) = 0; } }