自学教程：C++ GTK_FONT_BUTTON函数代码示例

static voidupdate_theme_from_controls (GthContactSheetThemeDialog *self){	self->priv->theme->display_name = g_strdup (gtk_entry_get_text (GTK_ENTRY (GET_WIDGET ("name_entry"))));	/* background */	if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (GET_WIDGET ("solid_color_radiobutton")))) {		self->priv->theme->background_type = GTH_CONTACT_SHEET_BACKGROUND_TYPE_SOLID;		gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("solid_color_colorpicker")), &self->priv->theme->background_color1);	}	else {		gboolean h_gradient_active = FALSE;		gboolean v_gradient_active = FALSE;		h_gradient_active = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (GET_WIDGET ("h_gradient_checkbutton")));		v_gradient_active = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (GET_WIDGET ("v_gradient_checkbutton")));		if (h_gradient_active && v_gradient_active) {			self->priv->theme->background_type = GTH_CONTACT_SHEET_BACKGROUND_TYPE_FULL;			gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("h_gradient_1_colorpicker")), &self->priv->theme->background_color1);			gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("h_gradient_2_colorpicker")), &self->priv->theme->background_color2);			gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("v_gradient_1_colorpicker")), &self->priv->theme->background_color3);			gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("v_gradient_2_colorpicker")), &self->priv->theme->background_color4);		}		else if (h_gradient_active) {			self->priv->theme->background_type = GTH_CONTACT_SHEET_BACKGROUND_TYPE_HORIZONTAL;			gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("h_gradient_1_colorpicker")), &self->priv->theme->background_color1);			gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("h_gradient_2_colorpicker")), &self->priv->theme->background_color2);		}		else if (v_gradient_active) {			self->priv->theme->background_type = GTH_CONTACT_SHEET_BACKGROUND_TYPE_VERTICAL;			gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("v_gradient_1_colorpicker")), &self->priv->theme->background_color1);			gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("v_gradient_2_colorpicker")), &self->priv->theme->background_color2);		}	}	/* frame */	self->priv->theme->frame_style = gtk_combo_box_get_active (GTK_COMBO_BOX (GET_WIDGET ("frame_style_combobox")));	gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("frame_colorpicker")), &self->priv->theme->frame_color);	/* header */	self->priv->theme->header_font_name = g_strdup (gtk_font_button_get_font_name (GTK_FONT_BUTTON (GET_WIDGET ("header_fontpicker"))));	gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("header_colorpicker")), &self->priv->theme->header_color);	/* footer */	self->priv->theme->footer_font_name = g_strdup (gtk_font_button_get_font_name (GTK_FONT_BUTTON (GET_WIDGET ("footer_fontpicker"))));	gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("footer_colorpicker")), &self->priv->theme->footer_color);	/* caption */	self->priv->theme->caption_font_name = g_strdup (gtk_font_button_get_font_name (GTK_FONT_BUTTON (GET_WIDGET ("caption_fontpicker"))));	gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("caption_colorpicker")), &self->priv->theme->caption_color);}

static voidupdate_controls_from_theme (GthContactSheetThemeDialog *self,			    GthContactSheetTheme       *theme){	if (theme == NULL)		theme = _gth_contact_sheet_theme_new_default ();	self->priv->theme = gth_contact_sheet_theme_dup (theme);	gtk_entry_set_text (GTK_ENTRY (GET_WIDGET ("name_entry")), theme->display_name);	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (GET_WIDGET ("solid_color_radiobutton")), theme->background_type == GTH_CONTACT_SHEET_BACKGROUND_TYPE_SOLID);	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (GET_WIDGET ("gradient_radiobutton")), theme->background_type != GTH_CONTACT_SHEET_BACKGROUND_TYPE_SOLID);	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (GET_WIDGET ("h_gradient_checkbutton")), (theme->background_type == GTH_CONTACT_SHEET_BACKGROUND_TYPE_HORIZONTAL) || (theme->background_type == GTH_CONTACT_SHEET_BACKGROUND_TYPE_FULL));	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (GET_WIDGET ("v_gradient_checkbutton")), (theme->background_type == GTH_CONTACT_SHEET_BACKGROUND_TYPE_VERTICAL) || (theme->background_type == GTH_CONTACT_SHEET_BACKGROUND_TYPE_FULL));	if (theme->background_type == GTH_CONTACT_SHEET_BACKGROUND_TYPE_SOLID) {		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("solid_color_colorpicker")), &theme->background_color1);		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("h_gradient_1_colorpicker")), &theme->background_color1);		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("h_gradient_2_colorpicker")), &theme->background_color1);		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("v_gradient_1_colorpicker")), &theme->background_color1);		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("v_gradient_2_colorpicker")), &theme->background_color1);	}	else if (theme->background_type == GTH_CONTACT_SHEET_BACKGROUND_TYPE_FULL) {		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("solid_color_colorpicker")), &theme->background_color1);		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("h_gradient_1_colorpicker")), &theme->background_color1);		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("h_gradient_2_colorpicker")), &theme->background_color2);		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("v_gradient_1_colorpicker")), &theme->background_color3);		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("v_gradient_2_colorpicker")), &theme->background_color4);	}	else {		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("solid_color_colorpicker")), &theme->background_color1);		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("h_gradient_1_colorpicker")), &theme->background_color1);		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("h_gradient_2_colorpicker")), &theme->background_color2);		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("v_gradient_1_colorpicker")), &theme->background_color1);		gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("v_gradient_2_colorpicker")), &theme->background_color2);	}	gtk_combo_box_set_active (GTK_COMBO_BOX (GET_WIDGET ("frame_style_combobox")), theme->frame_style);	gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("frame_colorpicker")), &theme->frame_color);	gtk_font_button_set_font_name (GTK_FONT_BUTTON (GET_WIDGET ("header_fontpicker")), theme->header_font_name);	gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("header_colorpicker")), &theme->header_color);	gtk_font_button_set_font_name (GTK_FONT_BUTTON (GET_WIDGET ("footer_fontpicker")), theme->footer_font_name);	gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("footer_colorpicker")), &theme->footer_color);	gtk_font_button_set_font_name (GTK_FONT_BUTTON (GET_WIDGET ("caption_fontpicker")), theme->caption_font_name);	gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (GET_WIDGET ("caption_colorpicker")), &theme->caption_color);	update_preview (self);}

bool wxFontButton::Create( wxWindow *parent, wxWindowID id,                        const wxFont &initial,                        const wxPoint &pos, const wxSize &size,                        long style, const wxValidator& validator,                        const wxString &name ){    if (!gtk_check_version(2,4,0))    {        m_needParent = true;        m_acceptsFocus = true;        if (!PreCreation( parent, pos, size ) ||            !wxControl::CreateBase(parent, id, pos, size, style, validator, name))        {            wxFAIL_MSG( wxT("wxFontButton creation failed") );            return false;        }        m_widget = gtk_font_button_new();        // set initial font        m_selectedFont = initial.IsOk() ? initial : *wxNORMAL_FONT;        UpdateFont();        // honour the fontbutton styles        bool showall = (style & wxFNTP_FONTDESC_AS_LABEL) != 0,             usefont = (style & wxFNTP_USEFONT_FOR_LABEL) != 0;        gtk_font_button_set_show_style(GTK_FONT_BUTTON(m_widget), showall);        gtk_font_button_set_show_size(GTK_FONT_BUTTON(m_widget), showall);        gtk_font_button_set_use_size(GTK_FONT_BUTTON(m_widget), usefont);        gtk_font_button_set_use_font(GTK_FONT_BUTTON(m_widget), usefont);        gtk_widget_show( GTK_WIDGET(m_widget) );        // GtkFontButton signals        g_signal_connect(m_widget, "font-set",                        G_CALLBACK(gtk_fontbutton_setfont_callback), this);        m_parent->DoAddChild( this );        PostCreation(size);        SetInitialSize(size);    }    else        return wxGenericFontButton::Create(parent, id, initial, pos, size,                                           style, validator, name);    return true;}

void reset_text_controls(){	GtkWidget * widget = NULL;	if ((!toplevel) || (!gauge))		return;	hold_handlers = TRUE;	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"precision_spin"));	gtk_spin_button_set_value(GTK_SPIN_BUTTON(widget),0);	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"value_font_scale_spin"));	gtk_spin_button_set_value(GTK_SPIN_BUTTON(widget),0);	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"value_xpos_spin"));	gtk_spin_button_set_value(GTK_SPIN_BUTTON(widget),0);	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"value_ypos_spin"));	gtk_spin_button_set_value(GTK_SPIN_BUTTON(widget),0);	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"value_font_button"));	gtk_font_button_set_font_name(GTK_FONT_BUTTON(widget),g_strdup(""));	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"show_value_check"));	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widget),TRUE);	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"value_color_button"));	gtk_color_button_set_color(GTK_COLOR_BUTTON(widget),&white);	hold_handlers = FALSE;}

//!//! @brief Sets the text in the custom document font button//! @param font_description_string The font description in the form "Sans 10"//!G_MODULE_EXPORT void gw_settingswindow_sync_custom_font_cb (GSettings *settings, gchar *KEY, gpointer data){    //Declarations    GwSettingsWindow *window;    GwSettingsWindowPrivate *priv;    GwApplication *application;    LwPreferences *preferences;    GtkWidget *toplevel;    GtkButton *button;    char font[50];    //Initializations    window = GW_SETTINGSWINDOW (data);    g_return_if_fail (window != NULL);    priv = window->priv;    toplevel = gw_window_get_toplevel (GW_WINDOW (window));    application = gw_window_get_application (GW_WINDOW (window));    preferences = gw_application_get_preferences (application);    lw_preferences_get_string_by_schema (preferences, font, LW_SCHEMA_FONT, LW_KEY_FONT_CUSTOM_FONT, 50);    button = GTK_BUTTON (priv->custom_font_fontbutton);    //Body    G_GNUC_EXTENSION g_signal_handlers_block_by_func (button, gw_settingswindow_custom_document_font_changed_cb, toplevel);    gtk_font_button_set_font_name (GTK_FONT_BUTTON (button), font);    G_GNUC_EXTENSION g_signal_handlers_unblock_by_func (button, gw_settingswindow_custom_document_font_changed_cb, toplevel);}

static void widget_fontbutton_input_by_file(variable *var, char *filename){	FILE             *infile;	gchar             line[512];	gint              count;#ifdef DEBUG_TRANSITS	fprintf(stderr, "%s(): Entering./n", __func__);#endif	if (infile = fopen(filename, "r")) {		/* Just one line */		if (fgets(line, 512, infile)) {			/* Enforce end of string in case of max chars read */			line[512 - 1] = 0;			/* Remove the trailing [CR]LFs */			for (count = strlen(line) - 1; count >= 0; count--)				if (line[count] == 13 || line[count] == 10) line[count] = 0;			gtk_font_button_set_font_name(GTK_FONT_BUTTON(var->Widget), line);		}		/* Close the file */		fclose(infile);	} else {		fprintf(stderr, "%s(): Couldn't open '%s' for reading./n", __func__,			filename);	}#ifdef DEBUG_TRANSITS	fprintf(stderr, "%s(): Exiting./n", __func__);#endif}

EXPORT gboolean create_text_block_event(GtkWidget * widget, gpointer data){	GtkWidget *dialog = NULL;	MtxTextBlock *tblock = NULL;	GladeXML *xml = NULL;	gchar * filename = NULL;	gint result = 0;	if (!GTK_IS_WIDGET(gauge))		return FALSE;	filename = get_file(g_build_filename(GAUGEDESIGNER_GLADE_DIR,"gaugedesigner.glade",NULL),NULL);	if (filename)	{		xml = glade_xml_new(filename, "tblock_dialog", NULL);		g_free(filename);	}	else	{		printf("Can't locate primary glade file!!!!/n");		exit(-1);	}	glade_xml_signal_autoconnect(xml);	dialog = glade_xml_get_widget(xml,"tblock_dialog");	gtk_color_button_set_color(GTK_COLOR_BUTTON(glade_xml_get_widget(xml,"tblock_day_colorbutton")),&white);	gtk_color_button_set_color(GTK_COLOR_BUTTON(glade_xml_get_widget(xml,"tblock_nite_colorbutton")),&black);	if (!GTK_IS_WIDGET(dialog))	{		return FALSE;	}	result = gtk_dialog_run(GTK_DIALOG(dialog));	switch (result)	{		case GTK_RESPONSE_APPLY:			tblock = g_new0(MtxTextBlock, 1);			tblock->font_scale = gtk_spin_button_get_value(GTK_SPIN_BUTTON(glade_xml_get_widget(xml,"tblock_font_scale_spin")));			tblock->x_pos = gtk_spin_button_get_value(GTK_SPIN_BUTTON(glade_xml_get_widget(xml,"tblock_xpos_spin")));			tblock->y_pos = gtk_spin_button_get_value(GTK_SPIN_BUTTON(glade_xml_get_widget(xml,"tblock_ypos_spin")));			tblock->text = gtk_editable_get_chars(GTK_EDITABLE(glade_xml_get_widget(xml,"tblock_text_entry")),0,-1);			gtk_color_button_get_color(GTK_COLOR_BUTTON(glade_xml_get_widget(xml,"tblock_day_colorbutton")),&tblock->color[MTX_DAY]);			gtk_color_button_get_color(GTK_COLOR_BUTTON(glade_xml_get_widget(xml,"tblock_nite_colorbutton")),&tblock->color[MTX_NITE]);			tblock->font = (gchar *)gtk_font_button_get_font_name (GTK_FONT_BUTTON(glade_xml_get_widget(xml,"tblock_fontbutton")));			tblock->font = g_strchomp(g_strdelimit(tblock->font,"0123456789",' '));			changed = TRUE;			mtx_gauge_face_set_text_block_struct(MTX_GAUGE_FACE(gauge),tblock);			g_free(tblock->text);			g_free(tblock);			update_onscreen_tblocks();			break;		default:			break;	}	if (GTK_IS_WIDGET(dialog))		gtk_widget_destroy(dialog);	return (FALSE);}

static PangoFontMap *gtk_font_button_font_chooser_get_font_map (GtkFontChooser *chooser){  GtkFontButton *font_button = GTK_FONT_BUTTON (chooser);  return font_button->priv->font_map;}

gboolean ly_3lrc_config_on_desktop_font_set_cb(GtkWidget *widget, gpointer data){	gchar font[1024]="Sans Regular 25";	g_strlcpy(font, gtk_font_button_get_font_name(GTK_FONT_BUTTON(widget)), sizeof(font));	ly_reg_set("3lrc_desktop_font", "%s", font);	return FALSE;}		

/**/brief/author     William J Giddings**/int gnoclFontButtonCmd ( ClientData data, Tcl_Interp *interp,						 int objc, Tcl_Obj * const objv[] ){	int       ret;	GtkFontButton *button;	if ( gnoclParseOptions ( interp, objc, objv, fontButtonOptions ) != TCL_OK )	{		gnoclClearOptions ( fontButtonOptions );		return TCL_ERROR;	}	button = GTK_FONT_BUTTON ( gtk_font_button_new( ) );	gtk_widget_show ( GTK_WIDGET ( button ) );	ret = gnoclSetOptions ( interp, fontButtonOptions, G_OBJECT ( button ), -1 );	gnoclClearOptions ( fontButtonOptions );	if ( ret != TCL_OK )	{		gtk_widget_destroy ( GTK_WIDGET ( button ) );		return TCL_ERROR;	}	return gnoclRegisterWidget ( interp, GTK_WIDGET ( button ), fontButtonFunc );}

static voidfcitx_wizard_candidate_widget_load_conf(FcitxWizardCandidateWidget *self){    FcitxConfigValueType value;    File_Conf_Data* config_conf = self->config_conf_data->conf_data;    File_Conf_Data* classic_ui_conf = self->classic_ui_conf_data->conf_data;    value = FcitxConfigGetBindValue(&config_conf->config->config, "Output",         "CandidateWordNumber");    gtk_spin_button_set_value(GTK_SPIN_BUTTON(self->candidate_word_number_spin_button),         *value.integer);    value = FcitxConfigGetBindValue(&classic_ui_conf->config->config, "ClassicUI",         "FontSize");    gtk_spin_button_set_value(GTK_SPIN_BUTTON(self->font_size_spin_button),         *value.integer);    value = FcitxConfigGetBindValue(&classic_ui_conf->config->config, "ClassicUI",         "Font");    gtk_font_button_set_font_name(GTK_FONT_BUTTON(self->font_button),         *value.string);    value = FcitxConfigGetBindValue(&classic_ui_conf->config->config, "ClassicUI",         "VerticalList");    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(self->vertical_candidate_button),        *value.boolvalue); }

static voidgtk_font_button_get_property (GObject    *object,                              guint       param_id,                              GValue     *value,                              GParamSpec *pspec){  GtkFontButton *font_button = GTK_FONT_BUTTON (object);    switch (param_id)     {    case PROP_TITLE:      g_value_set_string (value, gtk_font_button_get_title (font_button));      break;    case PROP_FONT_NAME:      g_value_set_string (value, gtk_font_button_get_font_name (font_button));      break;    case PROP_USE_FONT:      g_value_set_boolean (value, gtk_font_button_get_use_font (font_button));      break;    case PROP_USE_SIZE:      g_value_set_boolean (value, gtk_font_button_get_use_size (font_button));      break;    case PROP_SHOW_STYLE:      g_value_set_boolean (value, gtk_font_button_get_show_style (font_button));      break;    case PROP_SHOW_SIZE:      g_value_set_boolean (value, gtk_font_button_get_show_size (font_button));      break;    default:      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);      break;    }} 

void gui_update(struct dt_iop_module_t *self){  dt_iop_module_t *module = (dt_iop_module_t *)self;  dt_iop_watermark_gui_data_t *g = (dt_iop_watermark_gui_data_t *)self->gui_data;  dt_iop_watermark_params_t *p = (dt_iop_watermark_params_t *)module->params;  dt_bauhaus_slider_set(g->opacity, p->opacity);  dt_bauhaus_slider_set_soft(g->scale, p->scale);  dt_bauhaus_slider_set(g->rotate, p->rotate);  dt_bauhaus_slider_set(g->x_offset, p->xoffset);  dt_bauhaus_slider_set(g->y_offset, p->yoffset);  gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(g->align[p->alignment]), TRUE);  _combo_box_set_active_text(g->watermarks, p->filename);  dt_bauhaus_combobox_set(g->sizeto, p->sizeto);  gtk_entry_set_text(GTK_ENTRY(g->text), p->text);  GdkRGBA color = (GdkRGBA){.red = p->color[0], .green = p->color[1], .blue = p->color[2], .alpha = 1.0 };  gtk_color_chooser_set_rgba(GTK_COLOR_CHOOSER(g->colorpick), &color);  gtk_font_button_set_font_name(GTK_FONT_BUTTON(g->fontsel), p->font);}void init(dt_iop_module_t *module){  module->params = calloc(1, sizeof(dt_iop_watermark_params_t));  module->params_size = sizeof(dt_iop_watermark_params_t);  module->default_params = calloc(1, sizeof(dt_iop_watermark_params_t));  module->default_enabled = 0;  module->priority = 969; // module order created by iop_dependencies.py, do not edit!  module->params_size = sizeof(dt_iop_watermark_params_t);  module->gui_data = NULL;  dt_iop_watermark_params_t tmp = (dt_iop_watermark_params_t){    100.0, 100.0, 0.0, 0.0, 4, 0.0, DT_SCALE_IMAGE, { "darktable.svg" }, { "" }, {0.0, 0.0, 0.0}, {"DejaVu Sans 10"}  }; // opacity,scale,xoffs,yoffs,alignment  memcpy(module->params, &tmp, sizeof(dt_iop_watermark_params_t));  memcpy(module->default_params, &tmp, sizeof(dt_iop_watermark_params_t));}

/* Preferences Callback : Change font. */void preferences_font_cb (GtkWidget *button, gpointer data){	const char *font_str;	font_str = gtk_font_button_get_font_name (GTK_FONT_BUTTON (button));	g_settings_set_string (stickynotes->settings, "default-font", font_str);}

static voidmud_window_prefs_update_font(MudWindowPrefs *self,                             MudPrefs *preferences){    gtk_font_button_set_font_name(GTK_FONT_BUTTON(self->priv->font_button),                                  preferences->FontName);}

/* Preferences Callback : Change font. */void preferences_font_cb (GtkWidget *button, gpointer data){	const char *font_str;	font_str = gtk_font_button_get_font_name (GTK_FONT_BUTTON (button));	gconf_client_set_string(stickynotes->gconf,			GCONF_PATH "/defaults/font", font_str, NULL);}

static PangoFontFace *gtk_font_button_font_chooser_get_font_face (GtkFontChooser *chooser){  GtkFontButton *font_button = GTK_FONT_BUTTON (chooser);  GtkFontButtonPrivate *priv = font_button->priv;  return priv->font_face;}

static intgtk_font_button_font_chooser_get_font_size (GtkFontChooser *chooser){  GtkFontButton *font_button = GTK_FONT_BUTTON (chooser);  GtkFontButtonPrivate *priv = font_button->priv;  return priv->font_size;}

static voiddialog_cancel_clicked (GtkWidget *widget,		       gpointer   data){  GtkFontButton *font_button = GTK_FONT_BUTTON (data);    gtk_widget_hide (font_button->priv->font_dialog);  }

/* Properties Dialog Callback : Font */void properties_font_cb (GtkWidget *button, StickyNote *note){        const char *font_str;        font_str = gtk_font_button_get_font_name (GTK_FONT_BUTTON (button));	stickynote_set_font(note, font_str, TRUE);}

// set font for the 9 buttonsextern "C" G_MODULE_EXPORT void apply_font (GtkObject *object, gpointer user_data) {    gchar *font 				= (gchar*) gtk_font_button_get_font_name(GTK_FONT_BUTTON(fontbutton));    PangoFontDescription *pfont = pango_font_description_from_string (font);    for (int i=0; i< 9; i++)        gtk_widget_modify_font (GTK_WIDGET(knop[i]), pfont);	//g_free(font);	pango_font_description_free(pfont);}

void wxFontButton::UpdateFont(){    const wxNativeFontInfo *info = m_selectedFont.GetNativeFontInfo();    wxASSERT_MSG( info, wxT("The fontbutton's internal font is not valid ?") );    const wxString& fontname = info->ToString();    gtk_font_button_set_font_name(GTK_FONT_BUTTON(m_widget), wxGTK_CONV(fontname));}

GtkWidget * FontButton::newFontButton() {	GtkWidget * w = gtk_font_button_new();	gtk_widget_show(w);	gtk_font_button_set_use_font(GTK_FONT_BUTTON(w), TRUE);	gtk_button_set_focus_on_click(GTK_BUTTON(w), FALSE);	return w;}

static voidapplication_font_changed (GtkWidget *font_button){  const gchar *font;  font = gtk_font_button_get_font_name (GTK_FONT_BUTTON (font_button));  g_free (old_font);  old_font = g_strdup (font);}

static voidmud_window_prefs_font_cb(GtkWidget *widget,                         MudWindowPrefs *self){    const gchar *fontname = gtk_font_button_get_font_name(GTK_FONT_BUTTON(widget));    RETURN_IF_CHANGING_PROFILES(self);    mud_profile_set_font(self->priv->profile, fontname);}

void FontButton::setFontFontButton(GtkWidget * fontButton, XojFont & font) {	GtkFontButton * button = GTK_FONT_BUTTON(fontButton);	String txt = font.getName();	txt += " ";	txt += font.getSize();	gtk_font_button_set_font_name(button, txt.c_str());}

static voiddialog_destroy (GtkWidget *widget,                gpointer   data){  GtkFontButton *font_button = GTK_FONT_BUTTON (data);      /* Dialog will get destroyed so reference is not valid now */  font_button->priv->font_dialog = NULL;} 

void update_text_controls(){	gfloat tmp1 = 0.0;	gfloat tmp2 = 0.0;	gchar *tmpbuf0 = NULL;	gchar *tmpbuf = NULL;	GtkWidget * widget = NULL;	MtxGaugeFace *g = NULL;	GdkColor color;	if (GTK_IS_WIDGET(gauge))		g = MTX_GAUGE_FACE(gauge);	else 		return;	if (!toplevel)		return;	hold_handlers = TRUE;	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"precision_spin"));	mtx_gauge_face_get_attribute(g, PRECISION, &tmp1);	gtk_spin_button_set_value(GTK_SPIN_BUTTON(widget),(gint)tmp1);	mtx_gauge_face_get_attribute(g, VALUE_FONTSCALE, &tmp1);	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"value_font_scale_spin"));	gtk_spin_button_set_value(GTK_SPIN_BUTTON(widget),tmp1);	mtx_gauge_face_get_attribute(g, VALUE_XPOS, &tmp1);	mtx_gauge_face_get_attribute(g, VALUE_YPOS, &tmp2);	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"value_xpos_spin"));	gtk_spin_button_set_value(GTK_SPIN_BUTTON(widget),tmp1);	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"value_ypos_spin"));	gtk_spin_button_set_value(GTK_SPIN_BUTTON(widget),tmp2);	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"value_font_button"));	tmpbuf0 = mtx_gauge_face_get_value_font(g);	tmpbuf = g_strdup_printf("%s 13",tmpbuf0);	gtk_font_button_set_font_name(GTK_FONT_BUTTON(widget),tmpbuf);	g_free(tmpbuf0);	g_free(tmpbuf);	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"show_value_check"));	mtx_gauge_face_get_attribute(g, SHOW_VALUE, &tmp1);	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widget),(gint)tmp1);	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"value_color_day_button"));	(void)mtx_gauge_face_get_color(g,GAUGE_COL_VALUE_FONT_DAY, &color);	gtk_color_button_set_color(GTK_COLOR_BUTTON(widget), &color);	widget = GTK_WIDGET (gtk_builder_get_object(toplevel,"value_color_nite_button"));	(void)mtx_gauge_face_get_color(g,GAUGE_COL_VALUE_FONT_NITE, &color);	gtk_color_button_set_color(GTK_COLOR_BUTTON(widget), &color);	hold_handlers = FALSE;}

gchar *tbo_tool_text_get_pango_font (TboToolText *self){    if (self->font)    {        return (gchar *)gtk_font_button_get_font_name (GTK_FONT_BUTTON (self->font));    }    return DEFAULT_PANGO_FONT;}

static void fontsel_callback(GtkWidget *button, gpointer user_data){  dt_iop_module_t *self = (dt_iop_module_t *)user_data;  if(self->dt->gui->reset) return;  dt_iop_watermark_params_t *p = (dt_iop_watermark_params_t *)self->params;  snprintf(p->font, sizeof(p->font), "%s", gtk_font_button_get_font_name(GTK_FONT_BUTTON(button)));  dt_conf_set_string("plugins/darkroom/watermark/font", p->font);  dt_dev_add_history_item(darktable.develop, self, TRUE);}