app: add GimpToolCompass, which is the entire canvas GUI of the measure tool

app/core/gimpmarshal.list

@@ -47,6 +47,7 @@ VOID: FLAGS
 VOID: INT
 VOID: INT, INT
 VOID: INT, INT, INT, INT
+VOID: INT, INT, BOOLEAN, BOOLEAN
 VOID: OBJECT
 VOID: OBJECT, BOOLEAN
 VOID: OBJECT, INT

app/display/Makefile.am

@@ -164,6 +164,8 @@ libappdisplay_a_sources = \
 	gimptooldialog.h			\
 	gimptoolgui.c				\
 	gimptoolgui.h				\
+	gimptoolcompass.c			\
+	gimptoolcompass.h			\
 	gimptoolline.c				\
 	gimptoolline.h				\
 	gimptoolwidget.c			\

app/display/gimptoolcompass.h

@@ -0,0 +1,71 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimptoolcompass.h
+ * Copyright (C) 2017 Michael Natterer <mitch@gimp.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GIMP_TOOL_COMPASS_H__
+#define __GIMP_TOOL_COMPASS_H__
+
+
+#include "gimptoolwidget.h"
+
+
+#define GIMP_TYPE_TOOL_COMPASS            (gimp_tool_compass_get_type ())
+#define GIMP_TOOL_COMPASS(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_TOOL_COMPASS, GimpToolCompass))
+#define GIMP_TOOL_COMPASS_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_TOOL_COMPASS, GimpToolCompassClass))
+#define GIMP_IS_TOOL_COMPASS(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_TOOL_COMPASS))
+#define GIMP_IS_TOOL_COMPASS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_TOOL_COMPASS))
+#define GIMP_TOOL_COMPASS_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_TOOL_COMPASS, GimpToolCompassClass))
+
+
+typedef struct _GimpToolCompass        GimpToolCompass;
+typedef struct _GimpToolCompassPrivate GimpToolCompassPrivate;
+typedef struct _GimpToolCompassClass   GimpToolCompassClass;
+
+struct _GimpToolCompass
+{
+  GimpToolWidget          parent_instance;
+
+  GimpToolCompassPrivate *private;
+};
+
+struct _GimpToolCompassClass
+{
+  GimpToolWidgetClass  parent_class;
+
+  void (* create_guides) (GimpToolCompass *compass,
+                          gint             x,
+                          gint             y,
+                          gboolean         horizontal,
+                          gboolean         vertical);
+};
+
+
+GType            gimp_tool_compass_get_type (void) G_GNUC_CONST;
+
+GimpToolWidget * gimp_tool_compass_new      (GimpDisplayShell *shell,
+                                             gint              n_points,
+                                             gint              x1,
+                                             gint              y1,
+                                             gint              x2,
+                                             gint              y2,
+                                             gint              y3,
+                                             gint              x3);
+
+
+#endif /* __GIMP_TOOL_COMPASS_H__ */

po/POTFILES.in

@@ -253,6 +253,7 @@ app/display/gimpdisplayshell-scale-dialog.c
 app/display/gimpdisplayshell-title.c
 app/display/gimpnavigationeditor.c
 app/display/gimpstatusbar.c
+app/display/gimptoolcompass.c
 
 app/file/file-open.c
 app/file/file-remote.c