New misc file to do simple drop shadows.

Wed Jan  5 02:33:06 2005  Jonathan Blandford  <jrb@redhat.com>

        * backend/ev-document-misc.[ch]: New misc file to do simple drop
        shadows.

        * pdf/xpdf/pdf-document.cc: use the drop shadows in both types of
        thumbnails..

1 files changed, 53 insertions, 0 deletions

diff --git a/backend/ev-document-misc.c b/backend/ev-document-misc.c
new file mode 100644
index 0000000..ca818b7
--- /dev/null
+++ b/backend/ev-document-misc.c
@@ -0,0 +1,53 @@
+
+#include "ev-document-misc.h"
+
+/* Returns a new GdkPixbuf that is suitable for placing in the thumbnail view.
+ * It is four pixels wider and taller than the source.  If source_pixbuf is not
+ * NULL, then it will fill the return pixbuf with the contents of
+ * source_pixbuf. */
+GdkPixbuf *
+ev_document_misc_get_thumbnail_frame (int        width,
+				      int        height,
+				      GdkPixbuf *source_pixbuf)
+{
+	GdkPixbuf *retval;
+	guchar *data;
+	gint rowstride;
+
+	if (source_pixbuf)
+		g_return_val_if_fail (GDK_IS_PIXBUF (source_pixbuf), NULL);
+
+	if (source_pixbuf) {
+		width = gdk_pixbuf_get_width (source_pixbuf);
+		height = gdk_pixbuf_get_height (source_pixbuf);
+	}
+
+	/* make sure no one is passing us garbage */
+	g_assert (width > 0 && height > 0);
+
+	retval = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
+				 TRUE, 8,
+				 width + 4,
+				 height + 4);
+	gdk_pixbuf_fill (retval, 0x000000ff);
+	if (source_pixbuf)
+		gdk_pixbuf_copy_area (source_pixbuf, 0, 0,
+				      width,
+				      height,
+				      retval,
+				      1, 1);
+	/* Add the corner */
+	data = gdk_pixbuf_get_pixels (retval);
+	rowstride = gdk_pixbuf_get_rowstride (retval);
+	data [(width + 2) * 4 + 3] = 0;
+	data [(width + 3) * 4 + 3] = 0;
+	data [(width + 2) * 4 + (rowstride * 1) + 3] = 0;
+	data [(width + 3) * 4 + (rowstride * 1) + 3] = 0;
+
+	data [(height + 2) * rowstride + 3] = 0;
+	data [(height + 3) * rowstride + 3] = 0;
+	data [(height + 2) * rowstride + 4 + 3] = 0;
+	data [(height + 3) * rowstride + 4 + 3] = 0;
+
+	return retval;
+}