This change add a new functionality to text-info:

* Added a cancel button returning 1 if clicked
* Renamed the Close button to Ok, still returning 0 if clicked
* Added --ok-label=TEXT option to change the Ok button label
* Added --cancel-label=TEXT option to change the Cancel button label
* Added --checkbox=TEXT option to show an "I Agree and accept the terms" checkbox
  If --checkbox is enabled, the Ok button will be disabled if the checkbox isn't checked.

src/option.c

@@ -41,6 +41,8 @@ static gboolean zenity_general_editable;
 static gchar   *zenity_general_uri;
 static gboolean zenity_general_dialog_no_wrap;
 static gint     zenity_general_timeout_delay;
+static gchar   *zenity_general_ok_button;
+static gchar   *zenity_general_cancel_button;
 
 /* Calendar Dialog Options */
 static gboolean zenity_calendar_active;
@@ -92,12 +94,11 @@ static gboolean zenity_progress_no_cancel;
 
 /* Question Dialog Options */
 static gboolean zenity_question_active;
-static gchar   *zenity_question_ok_button;
-static gchar   *zenity_question_cancel_button;
 
 /* Text Dialog Options */
 static gboolean zenity_text_active;
 static gchar   *zenity_text_font;
+static gchar   *zenity_text_checkbox;
 
 /* Warning Dialog Options */
 static gboolean zenity_warning_active;
@@ -672,7 +673,7 @@ static GOptionEntry question_options[] = {
     '\0',
     G_OPTION_FLAG_NOALIAS,
     G_OPTION_ARG_STRING,
-    &zenity_question_ok_button,
+    &zenity_general_ok_button,
     N_("Sets the label of the Ok button"),
     N_("TEXT")
   },
@@ -681,7 +682,7 @@ static GOptionEntry question_options[] = {
     '\0',
     G_OPTION_FLAG_NOALIAS,
     G_OPTION_ARG_STRING,
-    &zenity_question_cancel_button,
+    &zenity_general_cancel_button,
     N_("Sets the label of the Cancel button"),
     N_("TEXT")
   },
@@ -736,6 +737,33 @@ static GOptionEntry text_options[] = {
     N_("Set the text font"),
     N_("TEXT")
   },
+  {
+    "ok-label",
+    '\0',
+    G_OPTION_FLAG_NOALIAS,
+    G_OPTION_ARG_STRING,
+    &zenity_general_ok_button,
+    N_("Sets the label of the Ok button"),
+    N_("TEXT")
+  },
+  {
+    "cancel-label",
+    '\0',
+    G_OPTION_FLAG_NOALIAS,
+    G_OPTION_ARG_STRING,
+    &zenity_general_cancel_button,
+    N_("Sets the label of the Cancel button"),
+    N_("TEXT")
+  },
+  {
+    "checkbox",
+    '\0',
+    G_OPTION_FLAG_NOALIAS,
+    G_OPTION_ARG_STRING,
+    &zenity_text_checkbox,
+    N_("Enable a I read and agree checkbox"),
+    N_("TEXT")
+  },
   { 
     NULL 
   }
@@ -1040,6 +1068,10 @@ zenity_option_free (void) {
   if (zenity_general_uri)
     g_free (zenity_general_uri);
   g_free (zenity_general_separator);
+  if (zenity_general_ok_button)
+    g_free (zenity_general_ok_button);
+  if (zenity_general_cancel_button)
+    g_free (zenity_general_cancel_button);
 
   if (zenity_calendar_date_format)
     g_free (zenity_calendar_date_format);
@@ -1060,13 +1092,10 @@ zenity_option_free (void) {
   if (zenity_list_hide_column)
     g_free (zenity_list_hide_column);
 
-  if (zenity_question_ok_button)
-    g_free (zenity_question_ok_button);
-  if (zenity_question_cancel_button)
-    g_free (zenity_question_cancel_button);
-
   if (zenity_text_font)
     g_free (zenity_text_font);
+  if (zenity_text_checkbox)
+    g_free (zenity_text_checkbox);
 
   if (zenity_colorsel_color)
     g_free (zenity_colorsel_color);
@@ -1145,6 +1174,8 @@ zenity_general_pre_callback (GOptionContext *context,
   zenity_general_multiple = FALSE;
   zenity_general_editable = FALSE;
   zenity_general_uri = NULL;
+  zenity_general_ok_button = NULL;
+  zenity_general_cancel_button = NULL;
   zenity_general_dialog_no_wrap = FALSE;
   zenity_general_timeout_delay = -1;
 
@@ -1281,7 +1312,7 @@ zenity_text_pre_callback (GOptionContext *context,
 {
   zenity_text_active = FALSE;
   zenity_text_font = NULL;
-
+  zenity_text_checkbox = NULL;
   return TRUE;
 }
 
@@ -1610,7 +1641,6 @@ zenity_progress_post_callback (GOptionContext *context,
 		               GError        **error)
 {
   zenity_option_set_dialog_mode (zenity_progress_active, MODE_PROGRESS);
-
   if (results->mode == MODE_PROGRESS) {
     results->progress_data->dialog_text = zenity_general_dialog_text;
     results->progress_data->pulsate = zenity_progress_pulsate;
@@ -1649,14 +1679,12 @@ zenity_question_post_callback (GOptionContext *context,
 		               GError        **error)
 {
   zenity_option_set_dialog_mode (zenity_question_active, MODE_QUESTION);
-
-
   if (results->mode == MODE_QUESTION) {
     results->msg_data->dialog_text = zenity_general_dialog_text;
     results->msg_data->mode = ZENITY_MSG_QUESTION;
     results->msg_data->no_wrap = zenity_general_dialog_no_wrap;
-    results->msg_data->ok_label = zenity_question_ok_button;
+    results->msg_data->ok_label = zenity_general_ok_button;
-    results->msg_data->cancel_label = zenity_question_cancel_button;
+    results->msg_data->cancel_label = zenity_general_cancel_button;
   }
 
   return TRUE;
@@ -1675,12 +1703,14 @@ zenity_text_post_callback (GOptionContext *context,
     results->text_data->editable = zenity_general_editable;
     results->text_data->no_wrap = zenity_general_dialog_no_wrap;
     results->text_data->font = zenity_text_font;
+    results->text_data->ok_label = zenity_general_ok_button;
+    results->text_data->cancel_label = zenity_general_cancel_button;
+    results->text_data->checkbox = zenity_text_checkbox;
   } else {
     if (zenity_text_font) 
       zenity_option_error (zenity_option_get_name (text_options, &zenity_text_font),
                            ERROR_SUPPORT);
   }
-    
   return TRUE;
 }
 
@@ -2064,6 +2094,14 @@ zenity_option_parse (gint argc, gchar **argv)
     if (results->mode != MODE_FILE && results->mode != MODE_TEXTINFO)
       zenity_option_error (zenity_option_get_name (text_options, &zenity_general_uri), ERROR_SUPPORT);
 
+  if (zenity_general_ok_button)
+    if(results->mode != MODE_QUESTION && results->mode != MODE_TEXTINFO)
+      zenity_option_error (zenity_option_get_name (text_options, &zenity_general_ok_button), ERROR_SUPPORT);
+  
+  if (zenity_general_cancel_button)
+    if(results->mode != MODE_QUESTION && results->mode != MODE_TEXTINFO)
+      zenity_option_error (zenity_option_get_name (text_options, &zenity_general_cancel_button), ERROR_SUPPORT);
+ 
   if (zenity_general_dialog_no_wrap)
     if (results->mode != MODE_INFO && results->mode != MODE_ERROR && results->mode != MODE_QUESTION && results->mode != MODE_WARNING && results->mode != MODE_TEXTINFO)
       zenity_option_error (zenity_option_get_name (text_options, &zenity_general_dialog_no_wrap), ERROR_SUPPORT);

src/text.c

@@ -29,6 +29,7 @@
 static ZenityTextData	*zen_text_data;
 
 static void zenity_text_dialog_response (GtkWidget *widget, int response, gpointer data);
+static void zenity_text_toggle_button (GtkToggleButton *button, gpointer data);
 
 static gboolean
 zenity_text_handle_stdin (GIOChannel  *channel,
@@ -103,6 +104,10 @@ zenity_text (ZenityData *data, ZenityTextData *text_data)
 {
   GtkBuilder *builder;
   GtkWidget *dialog;
+  GtkWidget *ok_button;
+  GtkWidget *checkbox;
+  GtkWidget *cancel_button;
+
   GObject *text_view;
   GtkTextBuffer *text_buffer;
 
@@ -119,6 +124,10 @@ zenity_text (ZenityData *data, ZenityTextData *text_data)
 	  
   dialog = GTK_WIDGET (gtk_builder_get_object (builder, "zenity_text_dialog"));
 
+  ok_button = GTK_WIDGET (gtk_builder_get_object (builder, "zenity_text_close_button"));
+  cancel_button = GTK_WIDGET (gtk_builder_get_object (builder, "zenity_text_cancel_button"));
+  checkbox = GTK_WIDGET (gtk_builder_get_object (builder, "zenity_text_checkbox"));
+
   g_signal_connect (G_OBJECT (dialog), "response",
                     G_CALLBACK (zenity_text_dialog_response), data);
 	
@@ -150,6 +159,21 @@ zenity_text (ZenityData *data, ZenityTextData *text_data)
   if (text_data->editable)
     zen_text_data->buffer = text_buffer;
 
+  if (text_data->ok_label) 
+    gtk_button_set_label (GTK_BUTTON(ok_button), text_data->ok_label);
+
+  if (text_data->cancel_label)
+    gtk_button_set_label (GTK_BUTTON(cancel_button), text_data->cancel_label);
+
+  if (text_data->checkbox) {
+    gtk_widget_set_visible (GTK_WIDGET(checkbox), TRUE);
+    gtk_widget_set_sensitive (GTK_WIDGET(ok_button), FALSE);
+    gtk_button_set_label (GTK_BUTTON(checkbox), text_data->checkbox);
+
+    g_signal_connect (G_OBJECT (checkbox), "toggled",
+                      G_CALLBACK (zenity_text_toggle_button), ok_button);
+  }
+
   if (data->width > -1 || data->height > -1)
     gtk_window_set_default_size (GTK_WINDOW (dialog), data->width, data->height);
   else
@@ -166,6 +190,13 @@ zenity_text (ZenityData *data, ZenityTextData *text_data)
   gtk_main ();
 }
 
+static void
+zenity_text_toggle_button (GtkToggleButton *button, gpointer data)
+{
+  GtkWidget *ok_button = (GtkWidget *)data;
+  gtk_widget_set_sensitive (GTK_WIDGET(ok_button), gtk_toggle_button_get_active(button));
+}
+
 static void
 zenity_text_dialog_response (GtkWidget *widget, int response, gpointer data)
 {
@@ -176,7 +207,6 @@ zenity_text_dialog_response (GtkWidget *widget, int response, gpointer data)
       if (zen_text_data->editable) {
         GtkTextIter start, end;
         gchar *text;
-				    
         gtk_text_buffer_get_bounds (zen_text_data->buffer, &start, &end);
         text = gtk_text_buffer_get_text (zen_text_data->buffer, &start, &end, 0);
         g_print ("%s", text);

src/zenity.h

@@ -107,6 +107,9 @@ typedef struct {
   gboolean       no_wrap;
   gchar         *font;
   GtkTextBuffer	*buffer;
+  gchar         *ok_label;
+  gchar         *cancel_label;
+  gchar         *checkbox;
 } ZenityTextData;
 
 typedef struct {

src/zenity.ui

@@ -847,11 +847,10 @@
             <property name="can_focus">False</property>
             <property name="layout_style">end</property>
             <child>
-              <object class="GtkButton" id="zenity_text_close_button">
+              <object class="GtkButton" id="zenity_text_cancel_button">
-                <property name="label">gtk-close</property>
+                <property name="label">gtk-cancel</property>
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
-                <property name="can_default">True</property>
                 <property name="receives_default">False</property>
                 <property name="use_action_appearance">False</property>
                 <property name="use_stock">True</property>
@@ -862,6 +861,23 @@
                 <property name="position">0</property>
               </packing>
             </child>
+            <child>
+              <object class="GtkButton" id="zenity_text_close_button">
+                <property name="label">gtk-ok</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="can_default">True</property>
+                <property name="receives_default">True</property>
+                <property name="use_action_appearance">False</property>
+                <property name="use_stock">True</property>
+                <property name="image_position">right</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">1</property>
+              </packing>
+            </child>
           </object>
           <packing>
             <property name="expand">False</property>
@@ -900,6 +916,20 @@
                 <property name="position">0</property>
               </packing>
             </child>
+            <child>
+              <object class="GtkCheckButton" id="zenity_text_checkbox">
+                <property name="can_focus">True</property>
+                <property name="receives_default">False</property>
+                <property name="use_action_appearance">False</property>
+                <property name="xalign">0</property>
+                <property name="draw_indicator">True</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">False</property>
+                <property name="position">1</property>
+              </packing>
+            </child>
           </object>
           <packing>
             <property name="expand">True</property>
@@ -910,6 +940,7 @@
       </object>
     </child>
     <action-widgets>
+      <action-widget response="-6">zenity_text_cancel_button</action-widget>
       <action-widget response="-7">zenity_text_close_button</action-widget>
     </action-widgets>
   </object>