diff options
Diffstat (limited to 'src/ld-canvas.c')
| -rw-r--r-- | src/ld-canvas.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/ld-canvas.c b/src/ld-canvas.c index dcab249..07d7a51 100644 --- a/src/ld-canvas.c +++ b/src/ld-canvas.c @@ -384,6 +384,9 @@ ld_canvas_new (void) void ld_canvas_set_document (LdCanvas *self, LdDocument *document) { + g_return_if_fail (LD_IS_CANVAS (self)); + g_return_if_fail (LD_IS_DOCUMENT (document)); + if (self->priv->document) g_object_unref (self->priv->document); @@ -403,6 +406,7 @@ ld_canvas_set_document (LdCanvas *self, LdDocument *document) LdDocument * ld_canvas_get_document (LdCanvas *self) { + g_return_val_if_fail (LD_IS_CANVAS (self), NULL); return self->priv->document; } @@ -416,6 +420,9 @@ ld_canvas_get_document (LdCanvas *self) void ld_canvas_set_library (LdCanvas *self, LdLibrary *library) { + g_return_if_fail (LD_IS_CANVAS (self)); + g_return_if_fail (LD_IS_LIBRARY (library)); + if (self->priv->library) g_object_unref (self->priv->library); @@ -435,6 +442,7 @@ ld_canvas_set_library (LdCanvas *self, LdLibrary *library) LdLibrary * ld_canvas_get_library (LdCanvas *self) { + g_return_val_if_fail (LD_IS_CANVAS (self), NULL); return self->priv->library; } |