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/////////////////////////////////////////////////////////////////////////////// |
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// Name: src/common/fontpickercmn.cpp |
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// Purpose: wxFontPickerCtrl class implementation |
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// Author: Francesco Montorsi |
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// Modified by: |
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// Created: 15/04/2006 |
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// RCS-ID: $Id: fontpickercmn.cpp 42999 2006-11-03 21:54:13Z VZ $ |
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// Copyright: (c) Francesco Montorsi |
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// Licence: wxWindows licence |
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/////////////////////////////////////////////////////////////////////////////// |
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|
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// ============================================================================ |
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// declarations |
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// ============================================================================ |
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|
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// ---------------------------------------------------------------------------- |
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// headers |
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// ---------------------------------------------------------------------------- |
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|
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// For compilers that support precompilation, includes "wx.h". |
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#include "wx/wxprec.h" |
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|
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#ifdef __BORLANDC__ |
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#pragma hdrstop |
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#endif |
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|
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#if wxUSE_FONTPICKERCTRL |
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|
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#include "wx/fontpicker.h" |
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|
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#ifndef WX_PRECOMP |
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#include "wx/textctrl.h" |
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#endif |
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#include "wx/fontenum.h" |
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#include "wx/tokenzr.h" |
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// ============================================================================ |
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// implementation |
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// ============================================================================ |
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|
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const wxChar wxFontPickerCtrlNameStr[] = wxT("fontpicker"); |
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const wxChar wxFontPickerWidgetNameStr[] = wxT("fontpickerwidget"); |
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|
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_FONTPICKER_CHANGED) |
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IMPLEMENT_DYNAMIC_CLASS(wxFontPickerCtrl, wxPickerBase) |
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IMPLEMENT_DYNAMIC_CLASS(wxFontPickerEvent, wxCommandEvent) |
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|
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// ---------------------------------------------------------------------------- |
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// wxFontPickerCtrl |
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// ---------------------------------------------------------------------------- |
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|
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#define M_PICKER ((wxFontPickerWidget*)m_picker) |
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|
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bool wxFontPickerCtrl::Create( wxWindow *parent, wxWindowID id, |
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const wxFont &initial, |
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const wxPoint &pos, const wxSize &size, |
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long style, const wxValidator& validator, |
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const wxString &name ) |
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{ |
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if (!wxPickerBase::CreateBase(parent, id, |
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Font2String(initial.IsOk() ? initial |
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: *wxNORMAL_FONT), |
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pos, size, style, validator, name)) |
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return false; |
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|
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// the picker of a wxFontPickerCtrl is a wxFontPickerWidget |
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m_picker = new wxFontPickerWidget(this, wxID_ANY, initial, |
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wxDefaultPosition, wxDefaultSize, |
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GetPickerStyle(style)); |
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// complete sizer creation |
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wxPickerBase::PostCreation(); |
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|
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m_picker->Connect(wxEVT_COMMAND_FONTPICKER_CHANGED, |
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wxFontPickerEventHandler(wxFontPickerCtrl::OnFontChange), |
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NULL, this); |
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|
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return true; |
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} |
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|
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wxString wxFontPickerCtrl::Font2String(const wxFont &f) |
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{ |
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wxString ret = f.GetNativeFontInfoUserDesc(); |
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#ifdef __WXMSW__ |
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// on wxMSW the encoding of the font is appended at the end of the string; |
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// since encoding is not very user-friendly we remove it. |
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wxFontEncoding enc = f.GetEncoding(); |
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if ( enc != wxFONTENCODING_DEFAULT && enc != wxFONTENCODING_SYSTEM ) |
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ret = ret.BeforeLast(wxT(' ')); |
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#endif |
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return ret; |
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} |
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|
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wxFont wxFontPickerCtrl::String2Font(const wxString &s) |
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{ |
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wxString str(s); |
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wxFont ret; |
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double n; |
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|
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// put a limit on the maximum point size which the user can enter |
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// NOTE: we suppose the last word of given string is the pointsize |
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wxString size = str.AfterLast(wxT(' ')); |
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if (size.ToDouble(&n)) |
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{ |
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if (n < 1) |
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str = str.Left(str.length() - size.length()) + wxT("1"); |
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else if (n >= m_nMaxPointSize) |
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str = str.Left(str.length() - size.length()) + |
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wxString::Format(wxT("%d"), m_nMaxPointSize); |
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} |
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|
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if (!ret.SetNativeFontInfoUserDesc(str)) |
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return wxNullFont; |
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|
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return ret; |
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} |
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|
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void wxFontPickerCtrl::SetSelectedFont(const wxFont &f) |
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{ |
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M_PICKER->SetSelectedFont(f); |
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UpdateTextCtrlFromPicker(); |
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} |
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|
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void wxFontPickerCtrl::UpdatePickerFromTextCtrl() |
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{ |
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wxASSERT(m_text); |
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if (m_bIgnoreNextTextCtrlUpdate) |
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{ |
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// ignore this update |
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m_bIgnoreNextTextCtrlUpdate = false; |
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return; |
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} |
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|
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// NB: we don't use the wxFont::wxFont(const wxString &) constructor |
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// since that constructor expects the native font description |
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// string returned by wxFont::GetNativeFontInfoDesc() and not |
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// the user-friendly one returned by wxFont::GetNativeFontInfoUserDesc() |
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wxFont f = String2Font(m_text->GetValue()); |
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if (!f.Ok()) |
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return; // invalid user input |
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|
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if (M_PICKER->GetSelectedFont() != f) |
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{ |
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M_PICKER->SetSelectedFont(f); |
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|
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// fire an event |
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wxFontPickerEvent event(this, GetId(), f); |
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GetEventHandler()->ProcessEvent(event); |
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} |
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} |
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|
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void wxFontPickerCtrl::UpdateTextCtrlFromPicker() |
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{ |
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if (!m_text) |
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return; // no textctrl to update |
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|
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// NOTE: this SetValue() will generate an unwanted wxEVT_COMMAND_TEXT_UPDATED |
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// which will trigger a unneeded UpdateFromTextCtrl(); thus before using |
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// SetValue() we set the m_bIgnoreNextTextCtrlUpdate flag... |
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m_bIgnoreNextTextCtrlUpdate = true; |
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m_text->SetValue(Font2String(M_PICKER->GetSelectedFont())); |
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} |
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// ---------------------------------------------------------------------------- |
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// wxFontPickerCtrl - event handlers |
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// ---------------------------------------------------------------------------- |
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void wxFontPickerCtrl::OnFontChange(wxFontPickerEvent &ev) |
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{ |
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UpdateTextCtrlFromPicker(); |
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|
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// the wxFontPickerWidget sent us a colour-change notification. |
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// forward this event to our parent |
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wxFontPickerEvent event(this, GetId(), ev.GetFont()); |
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GetEventHandler()->ProcessEvent(event); |
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} |
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|
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#endif // wxUSE_FONTPICKERCTRL |
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