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 // Copyright:   (c) Francesco Montorsi
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11
  12 // ----------------------------------------------------------------------------
  13 // headers
  14 // ----------------------------------------------------------------------------
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #if wxUSE_FONTPICKERCTRL
  20
  21 #include "wx/fontpicker.h"
  22
  23 #include "wx/fontutil.h"        // for wxNativeFontInfo
  24 #include "wx/gtk/private.h"
  25
  26 // ============================================================================
  27 // implementation
  28 // ============================================================================
  29
  30 //-----------------------------------------------------------------------------
  31 // "font-set"
  32 //-----------------------------------------------------------------------------
  33
  34 extern "C" {
  35 static void gtk_fontbutton_setfont_callback(GtkFontButton *widget,
  36                                             wxFontButton *p)
  37 {
  38     // update the m_selectedFont member of the wxFontButton
  39     wxASSERT(p);
  40     p->SetNativeFontInfo(gtk_font_button_get_font_name(widget));
  41
  42     // fire the colour-changed event
  43     wxFontPickerEvent event(p, p->GetId(), p->GetSelectedFont());
  44     p->HandleWindowEvent(event);
  45 }
  46 }
  47
  48 //-----------------------------------------------------------------------------
  49 // wxFontButton
  50 //-----------------------------------------------------------------------------
  51
  52 IMPLEMENT_DYNAMIC_CLASS(wxFontButton, wxButton)
  53
  54 bool wxFontButton::Create( wxWindow *parent, wxWindowID id,
  55                         const wxFont &initial,
  56                         const wxPoint &pos, const wxSize &size,
  57                         long style, const wxValidator& validator,
  58                         const wxString &name )
  59 {
  60     if (!PreCreation( parent, pos, size ) ||
  61         !wxControl::CreateBase(parent, id, pos, size, style, validator, name))
  62     {
  63         wxFAIL_MSG( wxT("wxFontButton creation failed") );
  64         return false;
  65     }
  66
  67     m_widget = gtk_font_button_new();
  68     g_object_ref(m_widget);
  69
  70     // set initial font
  71     m_selectedFont = initial.IsOk() ? initial : *wxNORMAL_FONT;
  72     UpdateFont();
  73
  74     // honour the fontbutton styles
  75     bool showall = (style & wxFNTP_FONTDESC_AS_LABEL) != 0,
  76          usefont = (style & wxFNTP_USEFONT_FOR_LABEL) != 0;
  77     gtk_font_button_set_show_style(GTK_FONT_BUTTON(m_widget), showall);
  78     gtk_font_button_set_show_size(GTK_FONT_BUTTON(m_widget), showall);
  79
  80     gtk_font_button_set_use_size(GTK_FONT_BUTTON(m_widget), usefont);
  81     gtk_font_button_set_use_font(GTK_FONT_BUTTON(m_widget), usefont);
  82
  83     // GtkFontButton signals
  84     g_signal_connect(m_widget, "font-set",
  85                     G_CALLBACK(gtk_fontbutton_setfont_callback), this);
  86
  87
  88     m_parent->DoAddChild( this );
  89
  90     PostCreation(size);
  91     SetInitialSize(size);
  92
  93     return true;
  94 }
  95
  96 wxFontButton::~wxFontButton()
  97 {
  98 }
  99
 100 void wxFontButton::UpdateFont()
 101 {
 102     const wxNativeFontInfo *info = m_selectedFont.GetNativeFontInfo();
 103     wxASSERT_MSG( info, wxT("The fontbutton's internal font is not valid ?") );
 104
 105     const wxString& fontname = info->ToString();
 106     gtk_font_button_set_font_name(GTK_FONT_BUTTON(m_widget), wxGTK_CONV(fontname));
 107 }
 108
 109 #endif // wxUSE_FONTPICKERCTRL