]> git.saurik.com Git - wxWidgets.git/blame - include/wx/osx/cocoa/private/markuptoattr.h
Don't use "Cancel" button in the about dialog of the listctrl sample.
[wxWidgets.git] / include / wx / osx / cocoa / private / markuptoattr.h
CommitLineData
f672c969
VZ
1///////////////////////////////////////////////////////////////////////////////
2// Name: wx/osx/cocoa/private/markuptoattr.h
3// Purpose: Class to convert markup to Cocoa attributed strings.
4// Author: Vadim Zeitlin
5// Created: 2011-02-22
6// RCS-ID: $Id: wxhead.h,v 1.12 2010-04-22 12:44:51 zeitlin Exp $
7// Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
8// Licence: wxWindows licence
9///////////////////////////////////////////////////////////////////////////////
10
11#ifndef _WX_OSX_COCOA_PRIVATE_MARKUPTOATTR_H_
12#define _WX_OSX_COCOA_PRIVATE_MARKUPTOATTR_H_
13
14#include "wx/private/markupparserattr.h"
15
16// ----------------------------------------------------------------------------
17// wxMarkupToAttrString: create NSAttributedString from markup.
18// ----------------------------------------------------------------------------
19
20class wxMarkupToAttrString : public wxMarkupParserAttrOutput
21{
22public:
23 // We don't care about the original colours because we never use them but
24 // we do need the correct initial font as we apply modifiers (e.g. create a
25 // font larger than it) to it and so it must be valid.
26 wxMarkupToAttrString(wxWindow *win, const wxString& markup)
27 : wxMarkupParserAttrOutput(win->GetFont(), wxColour(), wxColour())
28 {
29 const wxCFStringRef
30 label(wxControl::RemoveMnemonics(wxMarkupParser::Strip(markup)));
31 m_attrString = [[NSMutableAttributedString alloc]
32 initWithString: label.AsNSString()];
33
34 m_pos = 0;
35
36 [m_attrString beginEditing];
37
38 // First thing we do is change the default string font: as mentioned in
39 // Apple documentation, attributed strings use "Helvetica 12" font by
40 // default which is different from the system "Lucida Grande" font. So
41 // we need to explicitly change the font for the entire string.
42 [m_attrString addAttribute:NSFontAttributeName
43 value:win->GetFont().OSXGetNSFont()
44 range:NSMakeRange(0, [m_attrString length])];
45
46 // Now translate the markup tags to corresponding attributes.
47 wxMarkupParser parser(*this);
48 parser.Parse(markup);
49
50 [m_attrString endEditing];
51 }
52
53 ~wxMarkupToAttrString()
54 {
55 [m_attrString release];
56 }
57
58 // Accessor for the users of this class.
59 //
60 // We keep ownership of the returned string.
61 NSMutableAttributedString *GetNSAttributedString() const
62 {
63 return m_attrString;
64 }
65
66
67 // Implement base class pure virtual methods to process markup tags.
68 virtual void OnText(const wxString& text)
69 {
70 m_pos += wxControl::RemoveMnemonics(text).length();
71 }
72
73 virtual void OnAttrStart(const Attr& WXUNUSED(attr))
74 {
75 // Just remember the starting position of the range, we can't really
76 // set the attribute until we find the end of it.
77 m_rangeStarts.push(m_pos);
78 }
79
80 virtual void OnAttrEnd(const Attr& attr)
81 {
82 unsigned start = m_rangeStarts.top();
83 m_rangeStarts.pop();
84
85 const NSRange range = NSMakeRange(start, m_pos - start);
86
87 [m_attrString addAttribute:NSFontAttributeName
88 value:attr.font.OSXGetNSFont()
89 range:range];
90
91 if ( attr.foreground.IsOk() )
92 {
93 [m_attrString addAttribute:NSForegroundColorAttributeName
94 value:attr.foreground.OSXGetNSColor()
95 range:range];
96 }
97
98 if ( attr.background.IsOk() )
99 {
100 [m_attrString addAttribute:NSBackgroundColorAttributeName
101 value:attr.background.OSXGetNSColor()
102 range:range];
103 }
104 }
105
106private:
107 // The attributed string we're building.
108 NSMutableAttributedString *m_attrString;
109
110 // The current position in the output string.
111 unsigned m_pos;
112
113 // The positions of starting ranges.
114 wxStack<unsigned> m_rangeStarts;
115
116
117 wxDECLARE_NO_COPY_CLASS(wxMarkupToAttrString);
118};
119
120#endif // _WX_OSX_COCOA_PRIVATE_MARKUPTOATTR_H_