1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: src/common/fontpickercmn.cpp
3 // Purpose: wxFontPickerCtrl class implementation
4 // Author: Francesco Montorsi
5 // Modified by:
6 // Created: 15/04/2006
7 // RCS-ID: $Id: fontpickercmn.cpp 42999 2006-11-03 21:54:13Z VZ $
8 // Copyright: (c) Francesco Montorsi
9 // Licence: wxWindows licence
10 ///////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #if wxUSE_FONTPICKERCTRL
28
29 #include "wx/fontpicker.h"
30
31 #ifndef WX_PRECOMP
32 #include "wx/textctrl.h"
33 #endif
34
35 #include "wx/fontenum.h"
36 #include "wx/tokenzr.h"
37
38 // ============================================================================
39 // implementation
40 // ============================================================================
41
42 const wxChar wxFontPickerCtrlNameStr[] = wxT("fontpicker");
43 const wxChar wxFontPickerWidgetNameStr[] = wxT("fontpickerwidget");
44
45 DEFINE_EVENT_TYPE(wxEVT_COMMAND_FONTPICKER_CHANGED)
IMPLEMENT_DYNAMIC_CLASS(wxFontPickerCtrl,wxPickerBase)46 IMPLEMENT_DYNAMIC_CLASS(wxFontPickerCtrl, wxPickerBase)
47 IMPLEMENT_DYNAMIC_CLASS(wxFontPickerEvent, wxCommandEvent)
48
49 // ----------------------------------------------------------------------------
50 // wxFontPickerCtrl
51 // ----------------------------------------------------------------------------
52
53 #define M_PICKER ((wxFontPickerWidget*)m_picker)
54
55 bool wxFontPickerCtrl::Create( wxWindow *parent, wxWindowID id,
56 const wxFont &initial,
57 const wxPoint &pos, const wxSize &size,
58 long style, const wxValidator& validator,
59 const wxString &name )
60 {
61 if (!wxPickerBase::CreateBase(parent, id,
62 Font2String(initial.IsOk() ? initial
63 : *wxNORMAL_FONT),
64 pos, size, style, validator, name))
65 return false;
66
67 // the picker of a wxFontPickerCtrl is a wxFontPickerWidget
68 m_picker = new wxFontPickerWidget(this, wxID_ANY, initial,
69 wxDefaultPosition, wxDefaultSize,
70 GetPickerStyle(style));
71 // complete sizer creation
72 wxPickerBase::PostCreation();
73
74 m_picker->Connect(wxEVT_COMMAND_FONTPICKER_CHANGED,
75 wxFontPickerEventHandler(wxFontPickerCtrl::OnFontChange),
76 NULL, this);
77
78 return true;
79 }
80
Font2String(const wxFont & f)81 wxString wxFontPickerCtrl::Font2String(const wxFont &f)
82 {
83 wxString ret = f.GetNativeFontInfoUserDesc();
84 #ifdef __WXMSW__
85 // on wxMSW the encoding of the font is appended at the end of the string;
86 // since encoding is not very user-friendly we remove it.
87 wxFontEncoding enc = f.GetEncoding();
88 if ( enc != wxFONTENCODING_DEFAULT && enc != wxFONTENCODING_SYSTEM )
89 ret = ret.BeforeLast(wxT(' '));
90 #endif
91 return ret;
92 }
93
String2Font(const wxString & s)94 wxFont wxFontPickerCtrl::String2Font(const wxString &s)
95 {
96 wxString str(s);
97 wxFont ret;
98 double n;
99
100 // put a limit on the maximum point size which the user can enter
101 // NOTE: we suppose the last word of given string is the pointsize
102 wxString size = str.AfterLast(wxT(' '));
103 if (size.ToDouble(&n))
104 {
105 if (n < 1)
106 str = str.Left(str.length() - size.length()) + wxT("1");
107 else if (n >= m_nMaxPointSize)
108 str = str.Left(str.length() - size.length()) +
109 wxString::Format(wxT("%d"), m_nMaxPointSize);
110 }
111
112 if (!ret.SetNativeFontInfoUserDesc(str))
113 return wxNullFont;
114
115 return ret;
116 }
117
SetSelectedFont(const wxFont & f)118 void wxFontPickerCtrl::SetSelectedFont(const wxFont &f)
119 {
120 M_PICKER->SetSelectedFont(f);
121 UpdateTextCtrlFromPicker();
122 }
123
UpdatePickerFromTextCtrl()124 void wxFontPickerCtrl::UpdatePickerFromTextCtrl()
125 {
126 wxASSERT(m_text);
127
128 if (m_bIgnoreNextTextCtrlUpdate)
129 {
130 // ignore this update
131 m_bIgnoreNextTextCtrlUpdate = false;
132 return;
133 }
134
135 // NB: we don't use the wxFont::wxFont(const wxString &) constructor
136 // since that constructor expects the native font description
137 // string returned by wxFont::GetNativeFontInfoDesc() and not
138 // the user-friendly one returned by wxFont::GetNativeFontInfoUserDesc()
139 wxFont f = String2Font(m_text->GetValue());
140 if (!f.Ok())
141 return; // invalid user input
142
143 if (M_PICKER->GetSelectedFont() != f)
144 {
145 M_PICKER->SetSelectedFont(f);
146
147 // fire an event
148 wxFontPickerEvent event(this, GetId(), f);
149 GetEventHandler()->ProcessEvent(event);
150 }
151 }
152
UpdateTextCtrlFromPicker()153 void wxFontPickerCtrl::UpdateTextCtrlFromPicker()
154 {
155 if (!m_text)
156 return; // no textctrl to update
157
158 // NOTE: this SetValue() will generate an unwanted wxEVT_COMMAND_TEXT_UPDATED
159 // which will trigger a unneeded UpdateFromTextCtrl(); thus before using
160 // SetValue() we set the m_bIgnoreNextTextCtrlUpdate flag...
161 m_bIgnoreNextTextCtrlUpdate = true;
162 m_text->SetValue(Font2String(M_PICKER->GetSelectedFont()));
163 }
164
165
166
167 // ----------------------------------------------------------------------------
168 // wxFontPickerCtrl - event handlers
169 // ----------------------------------------------------------------------------
170
OnFontChange(wxFontPickerEvent & ev)171 void wxFontPickerCtrl::OnFontChange(wxFontPickerEvent &ev)
172 {
173 UpdateTextCtrlFromPicker();
174
175 // the wxFontPickerWidget sent us a colour-change notification.
176 // forward this event to our parent
177 wxFontPickerEvent event(this, GetId(), ev.GetFont());
178 GetEventHandler()->ProcessEvent(event);
179 }
180
181 #endif // wxUSE_FONTPICKERCTRL
182