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1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: src/generic/mask.cpp
3 // Purpose: generic wxMask implementation
4 // Author: Vadim Zeitlin
5 // Created: 2006-09-28
6 // Copyright: (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
7 // Licence: wxWindows licence
8 ///////////////////////////////////////////////////////////////////////////////
9
10 // ============================================================================
11 // declarations
12 // ============================================================================
13
14 // ----------------------------------------------------------------------------
15 // headers
16 // ----------------------------------------------------------------------------
17
18 // for compilers that support precompilation, includes "wx.h".
19 #include "wx/wxprec.h"
20
21 #ifdef __BORLANDC__
22 #pragma hdrstop
23 #endif
24
25 #ifndef WX_PRECOMP
26 #include "wx/bitmap.h"
27 #include "wx/image.h"
28 #endif // WX_PRECOMP
29
30 #if wxUSE_GENERIC_MASK
31
32 // ============================================================================
33 // wxMask implementation
34 // ============================================================================
35
36 IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
37
38 void wxMask::FreeData()
39 {
40 m_bitmap = wxNullBitmap;
41 }
42
43 bool wxMask::InitFromColour(const wxBitmap& bitmap, const wxColour& colour)
44 {
45 #if wxUSE_IMAGE
46 const wxColour clr(bitmap.QuantizeColour(colour));
47
48 wxImage imgSrc(bitmap.ConvertToImage());
49 imgSrc.SetMask(false);
50 wxImage image(imgSrc.ConvertToMono(clr.Red(), clr.Green(), clr.Blue()));
51 if ( !image.IsOk() )
52 return false;
53
54 m_bitmap = wxBitmap(image, 1);
55
56 return m_bitmap.IsOk();
57 #else // !wxUSE_IMAGE
58 wxUnusedVar(bitmap);
59 wxUnusedVar(colour);
60
61 return false;
62 #endif // wxUSE_IMAGE/!wxUSE_IMAGE
63 }
64
65 bool wxMask::InitFromMonoBitmap(const wxBitmap& bitmap)
66 {
67 wxCHECK_MSG( bitmap.IsOk(), false, wxT("Invalid bitmap") );
68 wxCHECK_MSG( bitmap.GetDepth() == 1, false, wxT("Cannot create mask from colour bitmap") );
69
70 m_bitmap = bitmap;
71
72 return true;
73 }
74
75 #endif // wxUSE_GENERIC_MASK