Embed libart_lgpl and libgnomecanvas.

Both of these modules are deprecated and going away in GNOME 3 but we
still rely heavily on them for GnomeCalendar and ETable.  So, welcome
to the island of unwanted libraries...

1 files changed, 155 insertions, 0 deletions

diff --git a/libgnomecanvas/gnome-canvas-util.h b/libgnomecanvas/gnome-canvas-util.h
new file mode 100644
index 0000000000..cfd32c336e
--- /dev/null
+++ b/libgnomecanvas/gnome-canvas-util.h
@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation
+ * All rights reserved.
+ *
+ * This file is part of the Gnome Library.
+ *
+ * The Gnome Library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * The Gnome Library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with the Gnome Library; see the file COPYING.LIB.  If not,
+ * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+/*
+  @NOTATION@
+ */
+/* Miscellaneous utility functions for the GnomeCanvas widget
+ *
+ * GnomeCanvas is basically a port of the Tk toolkit's most excellent canvas widget.  Tk is
+ * copyrighted by the Regents of the University of California, Sun Microsystems, and other parties.
+ *
+ * Author: Federico Mena <federico@nuclecu.unam.mx>
+ */
+
+#ifndef GNOME_CANVAS_UTIL_H
+#define GNOME_CANVAS_UTIL_H
+
+#include <libgnomecanvas/gnome-canvas.h>
+
+#include <libart_lgpl/art_svp.h>
+#include <libart_lgpl/art_vpath.h>
+#include <libart_lgpl/art_svp_vpath_stroke.h>
+
+
+G_BEGIN_DECLS
+
+typedef struct _GnomeCanvasPoints GnomeCanvasPoints;
+
+/* This structure defines an array of points.  X coordinates are stored in the even-numbered
+ * indices, and Y coordinates are stored in the odd-numbered indices.  num_points indicates the
+ * number of points, so the array is 2*num_points elements big.
+ */
+struct _GnomeCanvasPoints {
+	double *coords;
+	int num_points;
+	int ref_count;
+};
+
+
+/* Allocate a new GnomeCanvasPoints structure with enough space for the specified number of points */
+GnomeCanvasPoints *gnome_canvas_points_new (int num_points);
+
+/* Increate ref count */
+GnomeCanvasPoints *gnome_canvas_points_ref (GnomeCanvasPoints *points);
+#define gnome_canvas_points_unref gnome_canvas_points_free
+
+/* Decrease ref count and free structure if it has reached zero */
+void gnome_canvas_points_free (GnomeCanvasPoints *points);
+
+/* Given three points forming an angle, compute the coordinates of the inside and outside points of
+ * the mitered corner formed by a line of a given width at that angle.
+ *
+ * If the angle is less than 11 degrees, then FALSE is returned and the return points are not
+ * modified.  Otherwise, TRUE is returned.
+ */
+int gnome_canvas_get_miter_points (double x1, double y1, double x2, double y2, double x3, double y3,
+				   double width,
+				   double *mx1, double *my1, double *mx2, double *my2);
+
+/* Compute the butt points of a line segment.  If project is FALSE, then the results are as follows:
+ *
+ *            -------------------* (bx1, by1)
+ *                               |
+ *   (x1, y1) *------------------* (x2, y2)
+ *                               |
+ *            -------------------* (bx2, by2)
+ *
+ * that is, the line is not projected beyond (x2, y2).  If project is TRUE, then the results are as
+ * follows:
+ *
+ *            -------------------* (bx1, by1)
+ *                      (x2, y2) |
+ *   (x1, y1) *-------------*    |
+ *                               |
+ *            -------------------* (bx2, by2)
+ */
+void gnome_canvas_get_butt_points (double x1, double y1, double x2, double y2,
+				   double width, int project,
+				   double *bx1, double *by1, double *bx2, double *by2);
+
+/* Calculate the distance from a polygon to a point.  The polygon's X coordinates are in the even
+ * indices of the poly array, and the Y coordinates are in the odd indices.
+ */
+double gnome_canvas_polygon_to_point (double *poly, int num_points, double x, double y);
+
+
+/* Render the svp over the buf. */
+void gnome_canvas_render_svp (GnomeCanvasBuf *buf, ArtSVP *svp, guint32 rgba);
+
+/* Sets the svp to the new value, requesting repaint on what's changed. This function takes responsibility for
+ * freeing new_svp.
+ */
+void gnome_canvas_update_svp (GnomeCanvas *canvas, ArtSVP **p_svp, ArtSVP *new_svp);
+
+/* Sets the svp to the new value, clipping if necessary, and requesting repaint
+ * on what's changed. This function takes responsibility for freeing new_svp.
+ */
+void gnome_canvas_update_svp_clip (GnomeCanvas *canvas, ArtSVP **p_svp, ArtSVP *new_svp,
+				   ArtSVP *clip_svp);
+
+/* Sets the svp to the new value, requesting repaint on what's changed. This
+ * function takes responsibility for freeing new_svp. This routine also adds the
+ * svp's bbox to the item's.
+ */
+void gnome_canvas_item_reset_bounds (GnomeCanvasItem *item);
+
+/* Sets the svp to the new value, requesting repaint on what's changed. This function takes responsibility for
+ * freeing new_svp. This routine also adds the svp's bbox to the item's.
+ */
+void gnome_canvas_item_update_svp (GnomeCanvasItem *item, ArtSVP **p_svp, ArtSVP *new_svp);
+
+/* Sets the svp to the new value, clipping if necessary, and requesting repaint
+ * on what's changed. This function takes responsibility for freeing new_svp.
+ */
+void gnome_canvas_item_update_svp_clip (GnomeCanvasItem *item, ArtSVP **p_svp, ArtSVP *new_svp,
+					ArtSVP *clip_svp);
+
+/* Request redraw of the svp if in aa mode, or the entire item in in xlib
+ * mode.
+ */
+void gnome_canvas_item_request_redraw_svp (GnomeCanvasItem *item, const ArtSVP *svp);
+
+/* Sets the bbox to the new value, requesting full repaint. */
+void gnome_canvas_update_bbox (GnomeCanvasItem *item, int x1, int y1, int x2, int y2);
+
+/* Ensure that the buffer is in RGB format, suitable for compositing. */
+void gnome_canvas_buf_ensure_buf (GnomeCanvasBuf *buf);
+
+/* Convert from GDK line join specifier to libart. */
+ArtPathStrokeJoinType gnome_canvas_join_gdk_to_art (GdkJoinStyle gdk_join);
+
+/* Convert from GDK line cap specifier to libart. */
+ArtPathStrokeCapType gnome_canvas_cap_gdk_to_art (GdkCapStyle gdk_cap);
+
+G_END_DECLS
+
+#endif