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 #include "wx/gtk/private.h"
  21 #include "wx/fontpicker.h"
  22
  23 #include "wx/fontutil.h"        // for wxNativeFontInfo
  24 #include "wx/gtk/private.h"
  25
  26 #include <gdk/gdk.h>
  27 #include <gtk/gtk.h>
  28
  29
  30
  31 // ============================================================================
  32 // implementation
  33 // ============================================================================
  34
  35 #if wxUSE_FONTPICKERCTRL && defined(__WXGTK24__)
  36
  37 //-----------------------------------------------------------------------------
  38 // "font-set"
  39 //-----------------------------------------------------------------------------
  40
  41 extern "C" {
  42 static void gtk_fontbutton_setfont_callback(GtkFontButton *widget,
  43                                             wxFontButton *p)
  44 {
  45     // update the m_selectedFont member of the wxFontButton
  46     wxASSERT(p);
  47     p->SetNativeFontInfo(gtk_font_button_get_font_name(widget));
  48
  49     // fire the colour-changed event
  50     wxFontPickerEvent event(p, p->GetId(), p->GetSelectedFont());
  51     p->GetEventHandler()->ProcessEvent(event);
  52 }
  53 }
  54
  55 //-----------------------------------------------------------------------------
  56 // wxFontButton
  57 //-----------------------------------------------------------------------------
  58
  59 IMPLEMENT_DYNAMIC_CLASS(wxFontButton, wxGenericFontButton)
  60
  61 bool wxFontButton::Create( wxWindow *parent, wxWindowID id,
  62                         const wxFont &initial,
  63                         const wxPoint &pos, const wxSize &size,
  64                         long style, const wxValidator& validator,
  65                         const wxString &name )
  66 {
  67     if (!gtk_check_version(2,4,0))
  68     {
  69         m_needParent = true;
  70
  71         if (!PreCreation( parent, pos, size ) ||
  72             !wxControl::CreateBase(parent, id, pos, size, style, validator, name))
  73         {
  74             wxFAIL_MSG( wxT("wxFontButton creation failed") );
  75             return false;
  76         }
  77
  78         m_widget = gtk_font_button_new();
  79
  80         // set initial font
  81         m_selectedFont = initial;
  82         UpdateFont();
  83
  84         // honour the fontbutton styles
  85         bool showall = (style & wxFNTP_FONTDESC_AS_LABEL) != 0,
  86              usefont = (style & wxFNTP_USEFONT_FOR_LABEL) != 0;
  87         gtk_font_button_set_show_style(GTK_FONT_BUTTON(m_widget), showall);
  88         gtk_font_button_set_show_size(GTK_FONT_BUTTON(m_widget), showall);
  89
  90         gtk_font_button_set_use_size(GTK_FONT_BUTTON(m_widget), usefont);
  91         gtk_font_button_set_use_font(GTK_FONT_BUTTON(m_widget), usefont);
  92
  93         gtk_widget_show( GTK_WIDGET(m_widget) );
  94
  95         // GtkFontButton signals
  96         g_signal_connect(m_widget, "font-set",
  97                         G_CALLBACK(gtk_fontbutton_setfont_callback), this);
  98
  99
 100         m_parent->DoAddChild( this );
 101
 102         PostCreation(size);
 103         SetBestSize(size);
 104     }
 105     else
 106         return wxGenericFontButton::Create(parent, id, initial, pos, size,
 107                                            style, validator, name);
 108     return true;
 109 }
 110
 111 wxFontButton::~wxFontButton()
 112 {
 113 }
 114
 115 void wxFontButton::UpdateFont()
 116 {
 117     if (!gtk_check_version(2,4,0))
 118     {
 119         const wxNativeFontInfo *info = m_selectedFont.GetNativeFontInfo();
 120         wxASSERT_MSG( info, wxT("The fontbutton's internal font is not valid ?") );
 121
 122         const wxString& fontname = info->ToString();
 123         gtk_font_button_set_font_name(GTK_FONT_BUTTON(m_widget), wxGTK_CONV(fontname));
 124     }
 125     else
 126         wxGenericFontButton::UpdateFont();
 127 }
 128
 129 #endif      // wxUSE_FONTPICKERCTRL