1 files changed, 91 insertions, 0 deletions
diff --git a/gtk/gtk_thumbnail.c b/gtk/gtk_thumbnail.c
new file mode 100644
index 000000000..0de132d2d
--- /dev/null
+++ b/gtk/gtk_thumbnail.c
@@ -0,0 +1,91 @@
+/*
+ * This file is part of NetSurf, http://netsurf.sourceforge.net/
+ * Licensed under the GNU General Public License,
+ *                http://www.opensource.org/licenses/gpl-license
+ * Copyright 2006 Rob Kendrick <rjek@rjek.com>
+ */
+
+/** \file
+ * Page thumbnail creation (implementation).
+ *
+ * Thumbnails are created by setting the current drawing contexts to the
+ * bitmap (a gdk pixbuf) we are passed, and plotting the page at a small
+ * scale.
+ */
+
+#include <assert.h>
+#include <gtk/gtk.h>
+#include "netsurf/content/content.h"
+#include "netsurf/content/url_store.h"
+#include "netsurf/desktop/plotters.h"
+#include "netsurf/desktop/browser.h"
+#include "netsurf/image/bitmap.h"
+#include "netsurf/render/font.h"
+#include "netsurf/utils/log.h"
+#include "netsurf/gtk/gtk_window.h"
+#include "netsurf/gtk/gtk_plotters.h"
+
+/**
+ * Create a thumbnail of a page.
+ *
+ * \param  content  content structure to thumbnail
+ * \param  bitmap   the bitmap to draw to
+ * \param  url      the URL the thumnail belongs to, or NULL
+ */
+bool thumbnail_create(struct content *content, struct bitmap *bitmap,
+		const char *url)
+{
+	GdkPixbuf *pixbuf = (GdkPixbuf *) bitmap;
+	gint width = gdk_pixbuf_get_width(pixbuf);
+	gint height = gdk_pixbuf_get_height(pixbuf);
+	gint depth = (gdk_screen_get_system_visual(gdk_screen_get_default()))->depth;
+	GdkPixmap *pixmap = gdk_pixmap_new(NULL, width, height, depth);
+	GdkColor c = { 0, 65535, 65535, 65535 };
+	float scale = 1.0;
+
+	assert(content);
+	assert(bitmap);
+
+	gdk_drawable_set_colormap(pixmap, gdk_colormap_get_system());
+
+	/* set the plotting functions up */
+	plot = nsgtk_plotters;
+
+	if (content->width)
+		scale = (float)width / (float)content->width;
+	nsgtk_plot_set_scale(scale);
+
+	/* set to plot to pixmap */
+	current_drawable = pixmap;
+	current_gc = gdk_gc_new(current_drawable);
+#ifdef CAIRO_VERSION
+	current_cr = gdk_cairo_create(current_drawable);
+#endif
+
+	/* render the content */
+	content_redraw(content, 0, 0, width, height,
+			0, 0, width, height, scale, 0xFFFFFF);
+
+	/* copy thumbnail to pixbuf we've been passed */
+	gdk_pixbuf_get_from_drawable(pixbuf, pixmap, NULL, 0, 0, 0, 0,
+					width, height);
+
+	/* As a debugging aid, try this to dump out a copy of the thumbnail as a PNG:
+	 * gdk_pixbuf_save(pixbuf, "thumbnail.png", "png", NULL, NULL);
+	 */
+
+	/* register the thumbnail with the URL */
+	if (url)
+	  url_store_add_thumbnail(url, bitmap);
+
+	bitmap_modified(bitmap);
+
+	g_object_unref(current_gc);
+#ifdef CAIRO_VERSION
+	cairo_destroy(current_cr);
+#endif
+	g_object_unref(pixmap);
+
+	return true;
+}
+