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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/motif/dc.cpp | |
3 | // Purpose: wxDC 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 | // For compilers that support precompilation, includes "wx.h". | |
13 | #include "wx/wxprec.h" | |
14 | ||
15 | #include "wx/dc.h" | |
16 | ||
17 | #ifndef WX_PRECOMP | |
18 | #include "wx/dcmemory.h" | |
19 | #endif | |
20 | ||
21 | IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject) | |
22 | ||
23 | //----------------------------------------------------------------------------- | |
24 | // wxDC | |
25 | //----------------------------------------------------------------------------- | |
26 | ||
27 | wxDC::wxDC() | |
28 | { | |
29 | m_ok = false; | |
30 | ||
31 | m_backgroundMode = wxTRANSPARENT; | |
32 | ||
33 | m_isInteractive = false; | |
34 | } | |
35 | ||
36 | void wxDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y) | |
37 | { | |
38 | wxCHECK_RET( Ok(), "invalid dc" ); | |
39 | wxCHECK_RET( icon.Ok(), "invalid icon" ); | |
40 | ||
41 | DoDrawBitmap(icon, x, y, true); | |
42 | } | |
43 | ||
44 | void wxDC::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, bool useMask ) | |
45 | { | |
46 | wxCHECK_RET( bitmap.Ok(), "invalid bitmap" ); | |
47 | ||
48 | wxMemoryDC memDC; | |
49 | memDC.SelectObjectAsSource(bitmap); | |
50 | ||
51 | #if 0 | |
52 | // Not sure if we need this. The mask should leave the masked areas as per | |
53 | // the original background of this DC. | |
54 | if (useMask) | |
55 | { | |
56 | // There might be transparent areas, so make these the same colour as this | |
57 | // DC | |
58 | memDC.SetBackground(* GetBackground()); | |
59 | memDC.Clear(); | |
60 | } | |
61 | #endif // 0 | |
62 | ||
63 | Blit(x, y, bitmap.GetWidth(), bitmap.GetHeight(), &memDC, 0, 0, wxCOPY, useMask); | |
64 | ||
65 | memDC.SelectObject(wxNullBitmap); | |
66 | } | |
67 | ||
68 | void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) | |
69 | { | |
70 | m_clipping = true; | |
71 | m_clipX1 = x; | |
72 | m_clipY1 = y; | |
73 | m_clipX2 = x + width; | |
74 | m_clipY2 = y + height; | |
75 | } | |
76 | ||
77 | void wxDC::DoGetSize( int* width, int* height ) const | |
78 | { | |
79 | if ( width ) | |
80 | *width = m_maxX - m_minX; | |
81 | if ( height ) | |
82 | *height = m_maxY - m_minY; | |
83 | } | |
84 | ||
85 | void wxDC::DoGetSizeMM( int* width, int* height ) const | |
86 | { | |
87 | int w, h; | |
88 | GetSize( &w, &h ); | |
89 | ||
90 | if ( width ) | |
91 | *width = int( double(w) / (m_scaleX*m_mm_to_pix_x) ); | |
92 | if ( height ) | |
93 | *height = int( double(h) / (m_scaleY*m_mm_to_pix_y) ); | |
94 | } | |
95 | ||
96 | // Resolution in pixels per logical inch | |
97 | wxSize wxDC::GetPPI() const | |
98 | { | |
99 | // TODO (should probably be pure virtual) | |
100 | return wxSize(0, 0); | |
101 | } |