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add docs

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This commit is contained in:
Matthias Clasen 2006-06-01 05:19:16 +00:00
parent c8cbe9a1bc
commit 46466176e2
3 changed files with 74 additions and 2 deletions
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2
ChangeLog
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@ -1,5 +1,7 @@
2006-06-01 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkprintoperation.c: Add some examples to the docs.
* gtk/gtkprintbackend.c (gtk_print_backend_class_init):
Intern signal names.

2
ChangeLog.pre-2-10
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@ -1,5 +1,7 @@
2006-06-01 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkprintoperation.c: Add some examples to the docs.
* gtk/gtkprintbackend.c (gtk_print_backend_class_init):
Intern signal names.

72
gtk/gtkprintoperation.c
View File

@ -379,7 +379,44 @@ gtk_print_operation_class_init (GtkPrintOperationClass *class)
* from @context using gtk_print_context_get_cairo_context().
*
* <informalexample><programlisting>
* FIXME: need an example here
* static void
* draw_page (GtkPrintOperation *operation,
* GtkPrintContext *context,
* gint page_nr,
* gpointer user_data)
* {
* cairo_t *cr;
* PangoLayout *layout;
* gdouble width, text_height;
* gint layout_height;
* PangoFontDescription *desc;
*
* cr = gtk_print_context_get_cairo_context (context);
* width = gtk_print_context_get_width (context);
*
* cairo_rectangle (cr, 0, 0, width, HEADER_HEIGHT);
*
* cairo_set_source_rgb (cr, 0.8, 0.8, 0.8);
* cairo_fill (cr);
*
* layout = gtk_print_context_create_pango_layout (context);
*
* desc = pango_font_description_from_string ("sans 14");
* pango_layout_set_font_description (layout, desc);
* pango_font_description_free (desc);
*
* pango_layout_set_text (layout, "some text", -1);
* pango_layout_set_width (layout, width);
* pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
*
* pango_layout_get_size (layout, NULL, &amp;layout_height);
* text_height = (gdouble)layout_height / PANGO_SCALE;
*
* cairo_move_to (cr, width / 2, (HEADER_HEIGHT - text_height) / 2);
* pango_cairo_show_layout (cr, layout);
*
* g_object_unref (layout);
* }
* </programlisting></informalexample>
*
* Use gtk_print_operation_set_use_full_page() and
@ -1856,7 +1893,38 @@ print_pages (GtkPrintOperation *op,
* See gtk_print_operation_run_async() if this is a problem.
*
* <informalexample><programlisting>
* FIXME: need an example here
* if (settings != NULL)
* gtk_print_operation_set_print_settings (print, settings);
*
* if (page_setup != NULL)
* gtk_print_operation_set_default_page_setup (print, page_setup);
*
* g_signal_connect (print, "begin-print",
* G_CALLBACK (begin_print), &amp;data);
* g_signal_connect (print, "draw-page",
* G_CALLBACK (draw_page), &amp;data);
*
* res = gtk_print_operation_run (print, parent, &amp;error);
*
* if (res == GTK_PRINT_OPERATION_RESULT_ERROR)
* {
* error_dialog = gtk_message_dialog_new (GTK_WINDOW (parent),
* GTK_DIALOG_DESTROY_WITH_PARENT,
* GTK_MESSAGE_ERROR,
* GTK_BUTTONS_CLOSE,
* "Error printing file:\n%s",
* error->message);
* g_signal_connect (error_dialog, "response",
* G_CALLBACK (gtk_widget_destroy), NULL);
* gtk_widget_show (error_dialog);
* g_error_free (error);
* }
* else if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
* {
* if (settings != NULL)
* g_object_unref (settings);
* settings = g_object_ref (gtk_print_operation_get_print_settings (print));
* }
* </programlisting></informalexample>
*
* Return value: the result of the print operation. A return value of