Add ability to print selection

Add a new radio button "Selection" to the print dialog. Its presence
depends on calling of functions gtk_print_operation_set_support_selection()
and gtk_print_dialog_unix_set_support_selection().
Sensitivity of the radio depends on calling of
functions gtk_print_operation_set_has_selection() and
gtk_print_dialog_unix_set_has_selection().
There are new properties GtkPrintUnixDialog::support-selection,
GtkPrintUnixDialog::has-selection, GtkPrintOperation::support-selection
and GtkPrintOperation::has-selection. Corresponding getters are
gtk_print_dialog_unix_get_support_selection(),
gtk_print_dialog_unix_get_has_selection(),
gtk_print_operation_get_support_selection() and
gtk_print_operation_get_has_selection().
Application has to set number of pages to which the selection will be formated
in GtkPrintOperation::begin-print's callback by the
gtk_print_operation_set_n_pages() function (bug #344519).
There is also new property GtkPrintUnixDialog::manual-capabilities controled by
gtk_print_unix_dialog_set_manual_capabilities() and
gtk_print_unix_dialog_get_manual_capabilities().

1 files changed, 128 insertions, 0 deletions

diff --git a/gtk/gtkprintoperation.c b/gtk/gtkprintoperation.c
index c3b61c03d7..966417b22f 100644
--- a/gtk/gtkprintoperation.c
+++ b/gtk/gtkprintoperation.c
@@ -163,6 +163,8 @@ gtk_print_operation_init (GtkPrintOperation *operation)
   priv->export_filename = NULL;
   priv->track_print_status = FALSE;
   priv->is_sync = FALSE;
+  priv->support_selection = FALSE;
+  priv->has_selection = FALSE;
 
   priv->page_drawing_state = GTK_PAGE_DRAWING_STATE_READY;
 
@@ -223,6 +225,7 @@ preview_iface_is_selected (GtkPrintOperationPreview *preview,
   
   switch (priv->print_pages)
     {
+    case GTK_PRINT_PAGES_SELECTION:
     case GTK_PRINT_PAGES_ALL:
       return (page_nr >= 0) && (page_nr < priv->nr_of_pages);
     case GTK_PRINT_PAGES_CURRENT:
@@ -1193,6 +1196,39 @@ gtk_print_operation_class_init (GtkPrintOperationClass *class)
 							NULL,
 							GTK_PARAM_READWRITE));
 
+  /**
+   * GtkPrintOperation:support-selection:
+   *
+   * If %TRUE, the print operation will support print of selection.
+   * This allows the print dialog to show a "Selection" button.
+   * 
+   * Since: 2.18
+   */
+  g_object_class_install_property (gobject_class,
+				   PROP_TRACK_PRINT_STATUS,
+				   g_param_spec_boolean ("support-selection",
+							 P_("Support Selection"),
+							 P_("TRUE if the print operation will support print of selection."),
+							 FALSE,
+							 GTK_PARAM_READWRITE));
+
+  /**
+   * GtkPrintOperation:has-selection:
+   *
+   * Determines whether there is a selection in your application.
+   * This can allow your application to print the selection.
+   * This is typically used to make a "Selection" button sensitive.
+   * 
+   * Since: 2.18
+   */
+  g_object_class_install_property (gobject_class,
+				   PROP_TRACK_PRINT_STATUS,
+				   g_param_spec_boolean ("has-selection",
+							 P_("Has Selection"),
+							 P_("TRUE if a selecion exists."),
+							 FALSE,
+							 GTK_PARAM_READWRITE));
+
 }
 
 /**
@@ -2976,7 +3012,99 @@ gtk_print_operation_cancel (GtkPrintOperation *op)
   op->priv->cancelled = TRUE;
 }
 
+/**
+ * gtk_print_operation_set_support_selection:
+ * @op: a #GtkPrintOperation
+ * @support_selection: %TRUE to support selection
+ *
+ * Sets whether selection is supported by #GtkPrintOperation.
+ *
+ * Since: 2.18
+ */
+void
+gtk_print_operation_set_support_selection (GtkPrintOperation  *op,
+                                           gboolean            support_selection)
+{
+  GtkPrintOperationPrivate *priv;
 
+  g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
+
+  priv = op->priv;
+
+  support_selection = support_selection != FALSE;
+  if (priv->support_selection != support_selection)
+    {
+      priv->support_selection = support_selection;
+      g_object_notify (G_OBJECT (op), "support-selection");
+    }
+}
+
+/**
+ * gtk_print_operation_get_support_selection:
+ * @op: a #GtkPrintOperation
+ *
+ * Gets the value of #GtkPrintOperation::support-selection property.
+ * 
+ * Returns: whether the application supports print of selection
+ *
+ * Since: 2.18
+ */
+gboolean
+gtk_print_operation_get_support_selection (GtkPrintOperation *op)
+{
+  g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op), FALSE);
+
+  return op->priv->support_selection;
+}
+
+/**
+ * gtk_print_operation_set_has_selection:
+ * @op: a #GtkPrintOperation
+ * @has_selection: %TRUE indicates that a selection exists
+ *
+ * Sets whether there is a selection to print.
+ *
+ * Application has to set number of pages to which the selection
+ * will draw by gtk_print_operation_set_n_pages() in a callback of
+ * #GtkPrintOperation::begin-print.
+ *
+ * Since: 2.18
+ */
+void
+gtk_print_operation_set_has_selection (GtkPrintOperation  *op,
+                                       gboolean            has_selection)
+{
+  GtkPrintOperationPrivate *priv;
+
+  g_return_if_fail (GTK_IS_PRINT_OPERATION (op));
+
+  priv = op->priv;
+
+  has_selection = has_selection != FALSE;
+  if (priv->has_selection != has_selection)
+    {
+      priv->has_selection = has_selection;
+      g_object_notify (G_OBJECT (op), "has-selection");
+    }
+}
+
+/**
+ * gtk_print_operation_get_has_selection:
+ * @op: a #GtkPrintOperation
+ *
+ * Gets the value of #GtkPrintOperation::has-selection property.
+ * 
+ * Returns: whether there is a selection
+ *
+ * Since: 2.18
+ */
+gboolean
+gtk_print_operation_get_has_selection (GtkPrintOperation *op)
+{
+  g_return_val_if_fail (GTK_IS_PRINT_OPERATION (op), FALSE);
+
+  return op->priv->has_selection;
+}
 
 #define __GTK_PRINT_OPERATION_C__
 #include "gtkaliasdef.c"