| 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: $Id$ |
| 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 char wxFontPickerCtrlNameStr[] = "fontpicker"; |
| 43 | const char wxFontPickerWidgetNameStr[] = "fontpickerwidget"; |
| 44 | |
| 45 | wxDEFINE_EVENT(wxEVT_FONTPICKER_CHANGED, wxFontPickerEvent); |
| 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_FONTPICKER_CHANGED, |
| 75 | wxFontPickerEventHandler(wxFontPickerCtrl::OnFontChange), |
| 76 | NULL, this); |
| 77 | |
| 78 | return true; |
| 79 | } |
| 80 | |
| 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 | |
| 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 | |
| 118 | void wxFontPickerCtrl::SetSelectedFont(const wxFont &f) |
| 119 | { |
| 120 | M_PICKER->SetSelectedFont(f); |
| 121 | UpdateTextCtrlFromPicker(); |
| 122 | } |
| 123 | |
| 124 | void wxFontPickerCtrl::UpdatePickerFromTextCtrl() |
| 125 | { |
| 126 | wxASSERT(m_text); |
| 127 | |
| 128 | // NB: we don't use the wxFont::wxFont(const wxString &) constructor |
| 129 | // since that constructor expects the native font description |
| 130 | // string returned by wxFont::GetNativeFontInfoDesc() and not |
| 131 | // the user-friendly one returned by wxFont::GetNativeFontInfoUserDesc() |
| 132 | wxFont f = String2Font(m_text->GetValue()); |
| 133 | if (!f.IsOk()) |
| 134 | return; // invalid user input |
| 135 | |
| 136 | if (M_PICKER->GetSelectedFont() != f) |
| 137 | { |
| 138 | M_PICKER->SetSelectedFont(f); |
| 139 | |
| 140 | // fire an event |
| 141 | wxFontPickerEvent event(this, GetId(), f); |
| 142 | GetEventHandler()->ProcessEvent(event); |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | void wxFontPickerCtrl::UpdateTextCtrlFromPicker() |
| 147 | { |
| 148 | if (!m_text) |
| 149 | return; // no textctrl to update |
| 150 | |
| 151 | // Take care to use ChangeValue() here and not SetValue() to avoid |
| 152 | // infinite recursion. |
| 153 | m_text->ChangeValue(Font2String(M_PICKER->GetSelectedFont())); |
| 154 | } |
| 155 | |
| 156 | |
| 157 | |
| 158 | // ---------------------------------------------------------------------------- |
| 159 | // wxFontPickerCtrl - event handlers |
| 160 | // ---------------------------------------------------------------------------- |
| 161 | |
| 162 | void wxFontPickerCtrl::OnFontChange(wxFontPickerEvent &ev) |
| 163 | { |
| 164 | UpdateTextCtrlFromPicker(); |
| 165 | |
| 166 | // the wxFontPickerWidget sent us a colour-change notification. |
| 167 | // forward this event to our parent |
| 168 | wxFontPickerEvent event(this, GetId(), ev.GetFont()); |
| 169 | GetEventHandler()->ProcessEvent(event); |
| 170 | } |
| 171 | |
| 172 | #endif // wxUSE_FONTPICKERCTRL |