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