src/gtk/fontpicker.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/fontpicker.cpp
   3 // Purpose:     implementation of wxFontButton
   4 // Author:      Francesco Montorsi
   5 // Modified By:
   6 // Created:     15/04/2006
   7 // Id:          $Id$
   8 // Copyright:   (c) Francesco Montorsi
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12
  13 // ----------------------------------------------------------------------------
  14 // headers
  15 // ----------------------------------------------------------------------------
  16
  17 // For compilers that support precompilation, includes "wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #if wxUSE_FONTPICKERCTRL
  21
  22 #include "wx/fontpicker.h"
  23
  24 #include "wx/fontutil.h"        // for wxNativeFontInfo
  25 #include "wx/gtk/private.h"
  26
  27 // ============================================================================
  28 // implementation
  29 // ============================================================================
  30
  31 //-----------------------------------------------------------------------------
  32 // "font-set"
  33 //-----------------------------------------------------------------------------
  34
  35 extern "C" {
  36 static void gtk_fontbutton_setfont_callback(GtkFontButton *widget,
  37                                             wxFontButton *p)
  38 {
  39     // update the m_selectedFont member of the wxFontButton
  40     wxASSERT(p);
  41     p->SetNativeFontInfo(gtk_font_button_get_font_name(widget));
  42
  43     // fire the colour-changed event
  44     wxFontPickerEvent event(p, p->GetId(), p->GetSelectedFont());
  45     p->GetEventHandler()->ProcessEvent(event);
  46 }
  47 }
  48
  49 //-----------------------------------------------------------------------------
  50 // wxFontButton
  51 //-----------------------------------------------------------------------------
  52
  53 IMPLEMENT_DYNAMIC_CLASS(wxFontButton, wxGenericFontButton)
  54
  55 bool wxFontButton::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 (!gtk_check_version(2,4,0))
  62     {
  63         if (!PreCreation( parent, pos, size ) ||
  64             !wxControl::CreateBase(parent, id, pos, size, style, validator, name))
  65         {
  66             wxFAIL_MSG( wxT("wxFontButton creation failed") );
  67             return false;
  68         }
  69
  70         m_widget = gtk_font_button_new();
  71
  72         // set initial font
  73         m_selectedFont = initial.IsOk() ? initial : *wxNORMAL_FONT;
  74         UpdateFont();
  75
  76         // honour the fontbutton styles
  77         bool showall = (style & wxFNTP_FONTDESC_AS_LABEL) != 0,
  78              usefont = (style & wxFNTP_USEFONT_FOR_LABEL) != 0;
  79         gtk_font_button_set_show_style(GTK_FONT_BUTTON(m_widget), showall);
  80         gtk_font_button_set_show_size(GTK_FONT_BUTTON(m_widget), showall);
  81
  82         gtk_font_button_set_use_size(GTK_FONT_BUTTON(m_widget), usefont);
  83         gtk_font_button_set_use_font(GTK_FONT_BUTTON(m_widget), usefont);
  84
  85         gtk_widget_show(m_widget);
  86
  87         // GtkFontButton signals
  88         g_signal_connect(m_widget, "font-set",
  89                         G_CALLBACK(gtk_fontbutton_setfont_callback), this);
  90
  91
  92         m_parent->DoAddChild( this );
  93
  94         PostCreation(size);
  95         SetInitialSize(size);
  96     }
  97     else
  98         return wxGenericFontButton::Create(parent, id, initial, pos, size,
  99                                            style, validator, name);
 100     return true;
 101 }
 102
 103 wxFontButton::~wxFontButton()
 104 {
 105 }
 106
 107 void wxFontButton::UpdateFont()
 108 {
 109     if (!gtk_check_version(2,4,0))
 110     {
 111         const wxNativeFontInfo *info = m_selectedFont.GetNativeFontInfo();
 112         wxASSERT_MSG( info, wxT("The fontbutton's internal font is not valid ?") );
 113
 114         const wxString& fontname = info->ToString();
 115         gtk_font_button_set_font_name(GTK_FONT_BUTTON(m_widget), wxGTK_CONV(fontname));
 116     }
 117     else
 118         wxGenericFontButton::UpdateFont();
 119 }
 120
 121 #endif      // wxUSE_FONTPICKERCTRL