Clean up includes

40 files changed, 422 insertions, 199 deletions

diff --git a/ganv/Box.hpp b/ganv/Box.hpp
index 6ea0392..fe24622 100644
--- a/ganv/Box.hpp
+++ b/ganv/Box.hpp
@@ -18,9 +18,16 @@
 
 #include "ganv/Node.hpp"
 #include "ganv/box.h"
+#include "ganv/node.h"
+#include "ganv/types.h"
+#include "ganv/wrap.hpp"
+
+#include <glib.h>
 
 namespace Ganv {
 
+class Canvas;
+
 class Box : public Node
 {
 public:
diff --git a/ganv/Canvas.hpp b/ganv/Canvas.hpp
index a862ae3..5dd91df 100644
--- a/ganv/Canvas.hpp
+++ b/ganv/Canvas.hpp
@@ -16,14 +16,16 @@
 #ifndef GANV_CANVAS_HPP
 #define GANV_CANVAS_HPP
 
-#include <string>
+#include "ganv/canvas.h"
+#include "ganv/item.h"
+#include "ganv/types.h"
+#include "ganv/wrap.hpp"
 
+#include <cairo.h>
+#include <gdkmm/event.h>
 #include <glib.h>
-#include <glibmm.h>
 #include <gtkmm/layout.h>
-
-#include "ganv/canvas.h"
-#include "ganv/wrap.hpp"
+#include <sigc++/signal.h>
 
 /** Ganv namespace, everything is defined under this.
  *
@@ -34,7 +36,6 @@ namespace Ganv {
 class Edge;
 class Item;
 class Node;
-class Port;
 
 /** @defgroup Ganv Ganv
  *
diff --git a/ganv/Circle.hpp b/ganv/Circle.hpp
index 8534c0a..b60b89d 100644
--- a/ganv/Circle.hpp
+++ b/ganv/Circle.hpp
@@ -16,23 +16,22 @@
 #ifndef GANV_CIRCLE_HPP
 #define GANV_CIRCLE_HPP
 
-#include <algorithm>
-#include <map>
-#include <string>
-#include <stdint.h>
-
-#include <gdkmm/types.h>
-
-#include "ganv/types.hpp"
+#include "ganv/Canvas.hpp"
 #include "ganv/Node.hpp"
 #include "ganv/circle.h"
+#include "ganv/item.h"
+#include "ganv/node.h"
+#include "ganv/wrap.hpp"
+
+#include <glib.h>
+
+#include <cstdint>
+#include <string>
 
 GANV_GLIB_WRAP(Circle)
 
 namespace Ganv {
 
-class Canvas;
-
 /** An elliptical Item which is Node.
  *
  * Unlike a Module, this doesn't contain ports, but is directly joinable itself
diff --git a/ganv/Edge.hpp b/ganv/Edge.hpp
index f7a50b1..c7056a3 100644
--- a/ganv/Edge.hpp
+++ b/ganv/Edge.hpp
@@ -16,21 +16,23 @@
 #ifndef GANV_EDGE_HPP
 #define GANV_EDGE_HPP
 
-#include <stdint.h>
-
-#include <gdk/gdkevents.h>
-
 #include "ganv/Canvas.hpp"
 #include "ganv/Item.hpp"
 #include "ganv/Node.hpp"
 #include "ganv/edge.h"
+#include "ganv/item.h"
+#include "ganv/types.h"
+#include "ganv/wrap.hpp"
+
+#include <glib-object.h>
+#include <glib.h>
+
+#include <cstdint>
 
 GANV_GLIB_WRAP(Edge)
 
 namespace Ganv {
 
-class Canvas;
-
 /** A edge (line) between two Node objects.
  *
  * @ingroup Ganv
diff --git a/ganv/Item.hpp b/ganv/Item.hpp
index 8f0f9c2..09e2f13 100644
--- a/ganv/Item.hpp
+++ b/ganv/Item.hpp
@@ -16,23 +16,23 @@
 #ifndef GANV_ITEM_HPP
 #define GANV_ITEM_HPP
 
-#include <assert.h>
+#include "ganv/Canvas.hpp"
+#include "ganv/item.h"
+#include "ganv/wrap.hpp"
 
+#include <gdk/gdk.h>
+#include <gdkmm/event.h>
+#include <glib-object.h>
 #include <glib.h>
-
+#include <gobject/gclosure.h>
+#include <gtk/gtk.h>
 #include <sigc++/signal.h>
 #include <sigc++/trackable.h>
 
-#include "ganv/Canvas.hpp"
-#include "ganv/item.h"
-#include "ganv/wrap.hpp"
-
 GANV_GLIB_WRAP(Item)
 
 namespace Ganv {
 
-class Canvas;
-
 /** An item on the canvas.
  */
 class Item : public sigc::trackable {
diff --git a/ganv/Module.hpp b/ganv/Module.hpp
index 00d295d..8d13700 100644
--- a/ganv/Module.hpp
+++ b/ganv/Module.hpp
@@ -16,22 +16,24 @@
 #ifndef GANV_MODULE_HPP
 #define GANV_MODULE_HPP
 
-#include <string>
-#include <vector>
-
-#include <gtkmm/container.h>
-
+#include "ganv/Box.hpp"
 #include "ganv/Canvas.hpp"
-#include "ganv/Node.hpp"
 #include "ganv/Port.hpp"
+#include "ganv/box.h"
+#include "ganv/item.h"
 #include "ganv/module.h"
+#include "ganv/types.h"
+#include "ganv/wrap.hpp"
+
+#include <glib.h>
+#include <gtkmm/widget.h>
+
+#include <string>
 
 GANV_GLIB_WRAP(Module)
 
 namespace Ganv {
 
-class Canvas;
-
 /** A rectangular Item which can hold a Port.
  *
  * @ingroup Ganv
diff --git a/ganv/Node.hpp b/ganv/Node.hpp
index c40a7ea..311385e 100644
--- a/ganv/Node.hpp
+++ b/ganv/Node.hpp
@@ -16,18 +16,23 @@
 #ifndef GANV_NODE_HPP
 #define GANV_NODE_HPP
 
-#include <glib.h>
-#include <assert.h>
-
-#include "ganv/node.h"
 #include "ganv/Item.hpp"
+#include "ganv/item.h"
+#include "ganv/node.h"
+#include "ganv/types.h"
+#include "ganv/wrap.hpp"
+
+#include <glib-object.h>
+#include <glib.h>
+#include <glibmm/object.h>
+#include <gobject/gclosure.h>
+#include <sigc++/signal.h>
 
 GANV_GLIB_WRAP(Node)
 
 namespace Ganv {
 
 class Canvas;
-class Node;
 
 /** An object a Edge can connect to.
  */
diff --git a/ganv/Port.hpp b/ganv/Port.hpp
index 20a7e00..c665b08 100644
--- a/ganv/Port.hpp
+++ b/ganv/Port.hpp
@@ -16,14 +16,16 @@
 #ifndef GANV_PORT_HPP
 #define GANV_PORT_HPP
 
-#include <stdint.h>
-
-#include <string>
-
-#include <gdkmm/types.h>
-
 #include "ganv/Box.hpp"
 #include "ganv/port.h"
+#include "ganv/types.h"
+#include "ganv/wrap.hpp"
+
+#include <glib.h>
+#include <sigc++/signal.h>
+
+#include <cstdint>
+#include <string>
 
 GANV_GLIB_WRAP(Port)
 
diff --git a/ganv/box.h b/ganv/box.h
index ab166bf..c4a15b4 100644
--- a/ganv/box.h
+++ b/ganv/box.h
@@ -17,6 +17,11 @@
 #define GANV_BOX_H
 
 #include "ganv/node.h"
+#include "ganv/types.h"
+
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
 
 G_BEGIN_DECLS
 
@@ -27,6 +32,8 @@ G_BEGIN_DECLS
 #define GANV_IS_BOX_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), GANV_TYPE_BOX))
 #define GANV_BOX_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS((obj), GANV_TYPE_BOX, GanvBoxClass))
 
+struct _GanvBoxClass;
+
 typedef struct _GanvBoxClass   GanvBoxClass;
 typedef struct _GanvBoxPrivate GanvBoxPrivate;
 
diff --git a/ganv/canvas.h b/ganv/canvas.h
index c978e24..089bb1d 100644
--- a/ganv/canvas.h
+++ b/ganv/canvas.h
@@ -16,15 +16,15 @@
 #ifndef GANV_CANVAS_H
 #define GANV_CANVAS_H
 
-#include <stdarg.h>
+#include "ganv/item.h"
+#include "ganv/types.h"
 
 #include <cairo.h>
+#include <gdk/gdk.h>
+#include <glib-object.h>
+#include <glib.h>
 #include <gtk/gtk.h>
 
-#include "ganv/types.h"
-#include "ganv/edge.h"
-#include "ganv/item.h"
-
 G_BEGIN_DECLS
 
 #define GANV_TYPE_CANVAS            (ganv_canvas_get_type())
@@ -34,6 +34,8 @@ G_BEGIN_DECLS
 #define GANV_IS_CANVAS_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), GANV_TYPE_CANVAS))
 #define GANV_CANVAS_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS((obj), GANV_TYPE_CANVAS, GanvCanvasClass))
 
+struct _GanvCanvasClass;
+
 typedef struct GanvCanvasImpl   GanvCanvasPrivate;
 typedef struct _GanvCanvasClass GanvCanvasClass;
 
diff --git a/ganv/circle.h b/ganv/circle.h
index f181b54..6f4a301 100644
--- a/ganv/circle.h
+++ b/ganv/circle.h
@@ -17,6 +17,11 @@
 #define GANV_CIRCLE_H
 
 #include "ganv/node.h"
+#include "ganv/types.h"
+
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
 
 G_BEGIN_DECLS
 
@@ -27,6 +32,9 @@ G_BEGIN_DECLS
 #define GANV_IS_CIRCLE_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), GANV_TYPE_CIRCLE))
 #define GANV_CIRCLE_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS((obj), GANV_TYPE_CIRCLE, GanvCircleClass))
 
+struct _GanvCircle;
+struct _GanvCircleClass;
+
 typedef struct _GanvCircle        GanvCircle;
 typedef struct _GanvCircleClass   GanvCircleClass;
 typedef struct _GanvCirclePrivate GanvCirclePrivate;
diff --git a/ganv/edge.h b/ganv/edge.h
index bf0fb14..a8f7657 100644
--- a/ganv/edge.h
+++ b/ganv/edge.h
@@ -17,9 +17,12 @@
 #define GANV_EDGE_H
 
 #include "ganv/item.h"
-#include "ganv/node.h"
 #include "ganv/types.h"
 
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
+
 G_BEGIN_DECLS
 
 #define GANV_TYPE_EDGE            (ganv_edge_get_type())
@@ -29,6 +32,8 @@ G_BEGIN_DECLS
 #define GANV_IS_EDGE_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), GANV_TYPE_EDGE))
 #define GANV_EDGE_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS((obj), GANV_TYPE_EDGE, GanvEdgeClass))
 
+struct _GanvEdgeClass;
+
 typedef struct _GanvEdgeClass   GanvEdgeClass;
 typedef struct _GanvEdgePrivate GanvEdgePrivate;
 
diff --git a/ganv/ganv.h b/ganv/ganv.h
index 9a00143..f86165f 100644
--- a/ganv/ganv.h
+++ b/ganv/ganv.h
@@ -16,16 +16,15 @@
 #ifndef GANV_GANV_H
 #define GANV_GANV_H
 
-#include "ganv/box.h"
-#include "ganv/canvas.h"
-#include "ganv/circle.h"
-#include "ganv/edge.h"
-#include "ganv/ganv.h"
-#include "ganv/group.h"
-#include "ganv/module.h"
-#include "ganv/node.h"
-#include "ganv/port.h"
-#include "ganv/text.h"
-#include "ganv/types.h"
+#include "ganv/box.h"    // IWYU pragma: export
+#include "ganv/canvas.h" // IWYU pragma: export
+#include "ganv/circle.h" // IWYU pragma: export
+#include "ganv/edge.h"   // IWYU pragma: export
+#include "ganv/group.h"  // IWYU pragma: export
+#include "ganv/module.h" // IWYU pragma: export
+#include "ganv/node.h"   // IWYU pragma: export
+#include "ganv/port.h"   // IWYU pragma: export
+#include "ganv/text.h"   // IWYU pragma: export
+#include "ganv/types.h"  // IWYU pragma: export
 
 #endif  /* GANV_GANV_H */
diff --git a/ganv/ganv.hpp b/ganv/ganv.hpp
index 9b0334d..3e3f259 100644
--- a/ganv/ganv.hpp
+++ b/ganv/ganv.hpp
@@ -16,11 +16,11 @@
 #ifndef GANV_GANV_HPP
 #define GANV_GANV_HPP
 
-#include "ganv/Canvas.hpp"
-#include "ganv/Circle.hpp"
-#include "ganv/Edge.hpp"
-#include "ganv/Module.hpp"
-#include "ganv/Node.hpp"
-#include "ganv/Port.hpp"
+#include "ganv/Canvas.hpp" // IWYU pragma: export
+#include "ganv/Circle.hpp" // IWYU pragma: export
+#include "ganv/Edge.hpp"   // IWYU pragma: export
+#include "ganv/Module.hpp" // IWYU pragma: export
+#include "ganv/Node.hpp"   // IWYU pragma: export
+#include "ganv/Port.hpp"   // IWYU pragma: export
 
 #endif // GANV_GANV_HPP
diff --git a/ganv/group.h b/ganv/group.h
index 0f835e4..d21a8ed 100644
--- a/ganv/group.h
+++ b/ganv/group.h
@@ -18,6 +18,9 @@
 
 #include "ganv/item.h"
 
+#include <glib-object.h>
+#include <glib.h>
+
 G_BEGIN_DECLS
 
 /* Based on GnomeCanvasGroup, by Federico Mena <federico@nuclecu.unam.mx>
@@ -32,6 +35,9 @@ G_BEGIN_DECLS
 #define GANV_IS_GROUP_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GANV_TYPE_GROUP))
 #define GANV_GROUP_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj), GANV_TYPE_GROUP, GanvGroupClass))
 
+struct _GanvGroup;
+struct _GanvGroupClass;
+
 typedef struct _GanvGroup        GanvGroup;
 typedef struct _GanvGroupPrivate GanvGroupPrivate;
 typedef struct _GanvGroupClass   GanvGroupClass;
diff --git a/ganv/item.h b/ganv/item.h
index 4605ffb..2433574 100644
--- a/ganv/item.h
+++ b/ganv/item.h
@@ -21,14 +21,18 @@
 #ifndef GANV_ITEM_H
 #define GANV_ITEM_H
 
-#include <stdarg.h>
-
 #include <cairo.h>
+#include <gdk/gdk.h>
+#include <glib-object.h>
+#include <glib.h>
 #include <gtk/gtk.h>
 
+#include <stdarg.h>
+
 G_BEGIN_DECLS
 
-struct _GanvCanvas;
+struct _GanvItem;
+struct _GanvItemClass;
 
 typedef struct _GanvItem        GanvItem;
 typedef struct _GanvItemPrivate GanvItemPrivate;
diff --git a/ganv/module.h b/ganv/module.h
index 37fcf96..59c1909 100644
--- a/ganv/module.h
+++ b/ganv/module.h
@@ -16,10 +16,14 @@
 #ifndef GANV_MODULE_H
 #define GANV_MODULE_H
 
+#include "ganv/types.h"
+
+#include <glib-object.h>
 #include <glib.h>
 #include <gtk/gtk.h>
 
 #include "ganv/box.h"
+#include "ganv/canvas.h"
 
 G_BEGIN_DECLS
 
@@ -30,6 +34,8 @@ G_BEGIN_DECLS
 #define GANV_IS_MODULE_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), GANV_TYPE_MODULE))
 #define GANV_MODULE_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS((obj), GANV_TYPE_MODULE, GanvModuleClass))
 
+struct _GanvModuleClass;
+
 typedef struct _GanvModuleClass   GanvModuleClass;
 typedef struct _GanvModulePrivate GanvModulePrivate;
 
diff --git a/ganv/node.h b/ganv/node.h
index b0dd82f..03cce5f 100644
--- a/ganv/node.h
+++ b/ganv/node.h
@@ -18,7 +18,10 @@
 
 #include "ganv/item.h"
 #include "ganv/types.h"
-#include "ganv/text.h"
+
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
 
 G_BEGIN_DECLS
 
@@ -29,6 +32,8 @@ G_BEGIN_DECLS
 #define GANV_IS_NODE_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), GANV_TYPE_NODE))
 #define GANV_NODE_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS((obj), GANV_TYPE_NODE, GanvNodeClass))
 
+struct _GanvNodeClass;
+
 typedef struct _GanvNodeClass   GanvNodeClass;
 typedef struct _GanvNodePrivate GanvNodePrivate;
 
diff --git a/ganv/port.h b/ganv/port.h
index 03f4bb3..bfcd9da 100644
--- a/ganv/port.h
+++ b/ganv/port.h
@@ -17,8 +17,11 @@
 #define GANV_PORT_H
 
 #include "ganv/box.h"
+#include "ganv/types.h"
 
-struct _GanvModule;
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
 
 G_BEGIN_DECLS
 
@@ -29,6 +32,8 @@ G_BEGIN_DECLS
 #define GANV_IS_PORT_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), GANV_TYPE_PORT))
 #define GANV_PORT_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS((obj), GANV_TYPE_PORT, GanvPortClass))
 
+struct _GanvPortClass;
+
 typedef struct _GanvPortClass   GanvPortClass;
 typedef struct _GanvPortPrivate GanvPortPrivate;
 
diff --git a/ganv/text.h b/ganv/text.h
index 6f03a1b..2aee253 100644
--- a/ganv/text.h
+++ b/ganv/text.h
@@ -18,6 +18,10 @@
 
 #include "ganv/item.h"
 
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
+
 G_BEGIN_DECLS
 
 #define GANV_TYPE_TEXT            (ganv_text_get_type())
@@ -27,6 +31,9 @@ G_BEGIN_DECLS
 #define GANV_IS_TEXT_CLASS(klass) (GTK_CHECK_CLASS_TYPE((klass), GANV_TYPE_TEXT))
 #define GANV_TEXT_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS((obj), GANV_TYPE_TEXT, GanvTextClass))
 
+struct _GanvText;
+struct _GanvTextClass;
+
 typedef struct _GanvText        GanvText;
 typedef struct _GanvTextClass   GanvTextClass;
 typedef struct _GanvTextPrivate GanvTextPrivate;
diff --git a/ganv/types.hpp b/ganv/types.hpp
index 0e0e15e..ba797ba 100644
--- a/ganv/types.hpp
+++ b/ganv/types.hpp
@@ -18,12 +18,12 @@
 
 namespace Ganv {
 
-class Canvas;
-class Edge;
-class Item;
-class Module;
-class Node;
-class Port;
+class Canvas; // IWYU pragma: keep
+class Edge;   // IWYU pragma: keep
+class Item;   // IWYU pragma: keep
+class Module; // IWYU pragma: keep
+class Node;   // IWYU pragma: keep
+class Port;   // IWYU pragma: keep
 
 } // namespace Ganv
 
diff --git a/ganv/widget.h b/ganv/widget.h
index 5b54ba4..213e669 100644
--- a/ganv/widget.h
+++ b/ganv/widget.h
@@ -22,6 +22,9 @@
 
 #include "ganv/item.h"
 
+#include <glib-object.h>
+#include <glib.h>
+
 G_BEGIN_DECLS
 
 #define GANV_TYPE_WIDGET            (ganv_widget_get_type ())
@@ -31,6 +34,9 @@ G_BEGIN_DECLS
 #define GANV_IS_WIDGET_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GANV_TYPE_WIDGET))
 #define GANV_WIDGET_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GANV_TYPE_WIDGET, GanvWidgetClass))
 
+struct _GanvWidget;
+struct _GanvWidgetClass;
+
 typedef struct _GanvWidget        GanvWidget;
 typedef struct _GanvWidgetPrivate GanvWidgetPrivate;
 typedef struct _GanvWidgetClass   GanvWidgetClass;
diff --git a/ganv/wrap.hpp b/ganv/wrap.hpp
index 80aa0d2..a71be41 100644
--- a/ganv/wrap.hpp
+++ b/ganv/wrap.hpp
@@ -16,8 +16,6 @@
 #ifndef GANV_WRAP_HPP
 #define GANV_WRAP_HPP
 
-#include <glib.h>
-
 #define CONNECT_PROP_SIGNAL(gobj, name, notify, handler) \
 	g_signal_connect(gobj, "notify::" #name, \
 	                 G_CALLBACK(notify), &_signal_##name); \
diff --git a/src/Canvas.cpp b/src/Canvas.cpp
index 4e83507..f3b2499 100644
--- a/src/Canvas.cpp
+++ b/src/Canvas.cpp
@@ -21,42 +21,66 @@
 #define _POSIX_C_SOURCE 200809L // strdup
 #define _XOPEN_SOURCE   600 // isascii on BSD
 
-#include <math.h>
-#include <stdio.h>
-#include <string.h>
-
-#include <algorithm>
-#include <cassert>
-#include <cmath>
-#include <iostream>
-#include <map>
-#include <set>
-#include <sstream>
-#include <string>
-#include <vector>
-
-#include <cairo.h>
-#include <gdk/gdkkeysyms.h>
-#include <gtk/gtk.h>
-#include <gtk/gtkstyle.h>
-#include <gtkmm/widget.h>
+#include "color.h"
+#include "ganv-marshal.h"
+#include "ganv-private.h"
+#include "gettext.h"
 
 #include "ganv/Canvas.hpp"
-#include "ganv/Circle.hpp"
 #include "ganv/Edge.hpp"
-#include "ganv/Module.hpp"
-#include "ganv/Port.hpp"
+#include "ganv/Item.hpp"
+#include "ganv/Node.hpp"
 #include "ganv/box.h"
 #include "ganv/canvas.h"
+#include "ganv/circle.h"
 #include "ganv/edge.h"
 #include "ganv/group.h"
+#include "ganv/item.h"
+#include "ganv/module.h"
 #include "ganv/node.h"
+#include "ganv/port.h"
+#include "ganv/types.h"
 #include "ganv_config.h"
 
-#include "./color.h"
-#include "./ganv-marshal.h"
-#include "./ganv-private.h"
-#include "./gettext.h"
+#include <cairo-pdf.h>
+#include <cairo-ps.h>
+#include <cairo-svg.h>
+#include <cairo.h>
+#include <gdk/gdk.h>
+#include <gdk/gdkkeysyms-compat.h>
+#include <gdkmm/event.h>
+#include <gdkmm/gc.h>
+#include <gdkmm/screen.h>
+#include <gdkmm/window.h>
+#include <glib-object.h>
+#include <glib.h>
+#include <glibmm/object.h>
+#include <gobject/gclosure.h>
+#include <gtk/gtk.h>
+#include <gtkmm/layout.h>
+#include <gtkmm/object.h>
+#include <gtkmm/style.h>
+#include <gtkmm/widget.h>
+#include <pango/pango-font.h>
+#include <pango/pango-types.h>
+#include <pangomm/fontdescription.h>
+#include <sigc++/signal.h>
+
+#include <algorithm>
+#include <cassert>
+#include <cfloat>
+#include <clocale>
+#include <cmath>
+#include <cstdint>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <iostream>
+#include <map>
+#include <set>
+#include <string>
+#include <utility>
+#include <vector>
 
 #ifdef HAVE_AGRAPH
 // Deal with graphviz API amateur hour...
@@ -64,7 +88,10 @@
 #    define _dll_import 0
 #    define _BLD_cdt 0
 #    define _PACKAGE_ast 0
+#    include <arith.h>
 #    include <gvc.h>
+#    include <gvcext.h>
+#    include <types.h>
 #endif
 #ifdef GANV_FDGL
 #    include "./fdgl.hpp"
@@ -74,6 +101,8 @@
 
 static const double GANV_CANVAS_PAD = 8.0;
 
+struct GanvCanvasImpl;
+
 typedef struct {
 	int x;
 	int y;
@@ -1777,11 +1806,7 @@ Canvas::get_edge(Node* tail, Node* head) const
 
 extern "C" {
 
-#include "ganv/canvas.h"
-
-#include "./boilerplate.h"
-#include "./color.h"
-#include "./gettext.h"
+#include "boilerplate.h"
 
 G_DEFINE_TYPE_WITH_CODE(GanvCanvas, ganv_canvas, GTK_TYPE_LAYOUT,
                         G_ADD_PRIVATE(GanvCanvas))
diff --git a/src/Port.cpp b/src/Port.cpp
index 3506039..c17afe5 100644
--- a/src/Port.cpp
+++ b/src/Port.cpp
@@ -13,15 +13,22 @@
  * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <string>
-
-#include <glib.h>
+#include "color.h"
 
-#include "ganv/Canvas.hpp"
+#include "ganv/Box.hpp"
 #include "ganv/Module.hpp"
 #include "ganv/Port.hpp"
+#include "ganv/box.h"
+#include "ganv/port.h"
+#include "ganv/types.h"
 
-#include "./color.h"
+#include <glib-object.h>
+#include <gobject/gclosure.h>
+#include <sigc++/signal.h>
+
+#include <cstddef>
+#include <cstdint>
+#include <string>
 
 namespace Ganv {
 
diff --git a/src/boilerplate.h b/src/boilerplate.h
index a419711..770b286 100644
--- a/src/boilerplate.h
+++ b/src/boilerplate.h
@@ -13,6 +13,13 @@
  * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#ifndef GANV_BOILERPLATE_H
+#define GANV_BOILERPLATE_H
+
+#include "ganv/item.h"
+
+#include <glib.h>
+
 typedef gpointer gobject;
 
 /**
@@ -41,3 +48,5 @@ typedef gpointer gobject;
 	case PROP_##prop: \
 	g_value_set_##type(value, field); \
 	break;
+
+#endif  // GANV_BOILERPLATE_H
diff --git a/src/box.c b/src/box.c
index 4ee8e29..01814d1 100644
--- a/src/box.c
+++ b/src/box.c
@@ -13,17 +13,23 @@
  * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <math.h>
-#include <string.h>
-
-#include <cairo.h>
+#include "boilerplate.h"
+#include "color.h"
+#include "ganv-private.h"
+#include "gettext.h"
 
 #include "ganv/box.h"
+#include "ganv/item.h"
+#include "ganv/node.h"
+#include "ganv/types.h"
 
-#include "./boilerplate.h"
-#include "./color.h"
-#include "./gettext.h"
-#include "./ganv-private.h"
+#include <cairo.h>
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
+
+#include <math.h>
+#include <string.h>
 
 static const double STACKED_OFFSET = 4.0;
 
diff --git a/src/circle.c b/src/circle.c
index 5cd9cb9..723b229 100644
--- a/src/circle.c
+++ b/src/circle.c
@@ -13,16 +13,27 @@
  * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <math.h>
-#include <string.h>
+#include "boilerplate.h"
+#include "color.h"
+#include "ganv-private.h"
+#include "gettext.h"
 
 #include "ganv/canvas.h"
 #include "ganv/circle.h"
+#include "ganv/item.h"
+#include "ganv/node.h"
+#include "ganv/text.h"
+#include "ganv/types.h"
+
+#include <cairo.h>
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
 
-#include "./color.h"
-#include "./boilerplate.h"
-#include "./gettext.h"
-#include "./ganv-private.h"
+#include <float.h>
+#include <math.h>
+#include <stdarg.h>
+#include <string.h>
 
 G_DEFINE_TYPE_WITH_CODE(GanvCircle, ganv_circle, GANV_TYPE_NODE,
                         G_ADD_PRIVATE(GanvCircle))
diff --git a/src/edge.c b/src/edge.c
index 417030a..a1a5df2 100644
--- a/src/edge.c
+++ b/src/edge.c
@@ -13,21 +13,25 @@
  * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <math.h>
-#include <string.h>
-
-#include <cairo.h>
+#include "boilerplate.h"
+#include "color.h"
+#include "ganv-private.h"
+#include "gettext.h"
 
 #include "ganv/canvas.h"
 #include "ganv/edge.h"
+#include "ganv/item.h"
 #include "ganv/node.h"
+#include "ganv/types.h"
 
-#include "./boilerplate.h"
-#include "./color.h"
-#include "./gettext.h"
+#include <cairo.h>
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
+#include <stdarg.h>
 
-#include "color.h"
-#include "ganv-private.h"
+#include <math.h>
+#include <string.h>
 
 #define ARROW_DEPTH   32
 #define ARROW_BREADTH 32
diff --git a/src/fdgl.hpp b/src/fdgl.hpp
index 38fded1..1ea5e9d 100644
--- a/src/fdgl.hpp
+++ b/src/fdgl.hpp
@@ -13,8 +13,9 @@
  * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <float.h>
-#include <math.h>
+#include "ganv-private.h"
+
+#include <cmath>
 
 static const double CHARGE_KE = 4000000.0;
 static const double EDGE_K    = 16.0;
diff --git a/src/ganv-private.h b/src/ganv-private.h
index df611a9..3d0b7e0 100644
--- a/src/ganv-private.h
+++ b/src/ganv-private.h
@@ -20,12 +20,17 @@
 extern "C" {
 #endif
 
-#include <cairo.h>
-
 #include "ganv/canvas.h"
+#include "ganv/item.h"
 #include "ganv/text.h"
 #include "ganv/types.h"
 
+#include <cairo.h>
+#include <gdk/gdk.h>
+#include <glib.h>
+#include <gtk/gtk.h>
+#include <pango/pango-layout.h>
+
 #define GANV_CLOSE_ENOUGH 1
 
 extern guint signal_moved;
diff --git a/src/ganv_bench.cpp b/src/ganv_bench.cpp
index 5f723b3..1ad00f2 100644
--- a/src/ganv_bench.cpp
+++ b/src/ganv_bench.cpp
@@ -13,16 +13,30 @@
  * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <glibmm.h>
+#include "ganv/Canvas.hpp"
+#include "ganv/Circle.hpp"
+#include "ganv/Edge.hpp"
+#include "ganv/Module.hpp"
+#include "ganv/Port.hpp"
+
+#include <glibmm/main.h>
+#include <gtkmm/layout.h>
 #include <gtkmm/main.h>
+#include <gtkmm/object.h>
 #include <gtkmm/scrolledwindow.h>
 #include <gtkmm/window.h>
+#include <sigc++/functors/ptr_fun.h>
+
+#include <algorithm>
+#include <cstdio>
+#include <cstdlib>
+#include <ctime>
+#include <iosfwd>
+#include <vector>
 
-#include "ganv/ganv.hpp"
+namespace Ganv {
+class Node;
+}
 
 using namespace std;
 using namespace Ganv;
diff --git a/src/ganv_test.c b/src/ganv_test.c
index ec1b0a8..c2e1534 100644
--- a/src/ganv_test.c
+++ b/src/ganv_test.c
@@ -13,10 +13,10 @@
  * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <gtk/gtk.h>
-
 #include "ganv/ganv.h"
 
+#include <gtk/gtk.h>
+
 static void
 on_window_destroy(GtkWidget* widget, void* data)
 {
diff --git a/src/group.c b/src/group.c
index b60495b..54a3765 100644
--- a/src/group.c
+++ b/src/group.c
@@ -18,13 +18,19 @@
  * Copyright 1997-2000 Free Software Foundation
  */
 
-#include <math.h>
+#include "ganv-private.h"
 
-#include "ganv/canvas.h"
 #include "ganv/group.h"
+#include "ganv/item.h"
+
+#include <cairo.h>
+#include <float.h>
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
 
-#include "./gettext.h"
-#include "./ganv-private.h"
+#include <math.h>
+#include <stddef.h>
 
 enum {
 	GROUP_PROP_0
diff --git a/src/item.c b/src/item.c
index c44085b..06db304 100644
--- a/src/item.c
+++ b/src/item.c
@@ -18,13 +18,20 @@
  * Copyright 1997-2000 Free Software Foundation
  */
 
-#include "ganv/canvas.h"
-#include "ganv/node.h"
+#include "ganv-marshal.h"
+#include "ganv-private.h"
+#include "gettext.h"
 
-#include "./boilerplate.h"
-#include "./ganv-marshal.h"
-#include "./ganv-private.h"
-#include "./gettext.h"
+#include "ganv/item.h"
+#include "ganv/types.h"
+
+#include <gdk/gdk.h>
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
+
+#include <stdarg.h>
+#include <stdio.h>
 
 /* All canvas items are derived from GanvItem.  The only information a GanvItem
  * contains is its parent canvas, its parent canvas item, its bounding box in
diff --git a/src/module.c b/src/module.c
index a33b27c..e96932e 100644
--- a/src/module.c
+++ b/src/module.c
@@ -13,18 +13,28 @@
  * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <stdlib.h>
-#include <string.h>
+#include "ganv-private.h"
 
+#include "ganv/box.h"
 #include "ganv/canvas.h"
+#include "ganv/item.h"
 #include "ganv/module.h"
+#include "ganv/node.h"
 #include "ganv/port.h"
+#include "ganv/text.h"
+#include "ganv/types.h"
 #include "ganv/widget.h"
 
-#include "./color.h"
-#include "./boilerplate.h"
-#include "./gettext.h"
-#include "./ganv-private.h"
+#include <cairo.h>
+#include <glib-object.h>
+#include <glib.h>
+#include <gobject/gclosure.h>
+#include <gtk/gtk.h>
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 #define FOREACH_PORT(ports, i) \
 	for (GanvPort** i = (GanvPort**)ports->pdata; \
diff --git a/src/node.c b/src/node.c
index c93e116..81d10a6 100644
--- a/src/node.c
+++ b/src/node.c
@@ -13,14 +13,26 @@
  * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "boilerplate.h"
+#include "color.h"
+#include "ganv-marshal.h"
+#include "ganv-private.h"
+#include "gettext.h"
+
 #include "ganv/canvas.h"
+#include "ganv/edge.h"
+#include "ganv/item.h"
 #include "ganv/node.h"
+#include "ganv/text.h"
+#include "ganv/types.h"
+
+#include <cairo.h>
+#include <gdk/gdk.h>
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
 
-#include "./boilerplate.h"
-#include "./color.h"
-#include "./ganv-marshal.h"
-#include "./ganv-private.h"
-#include "./gettext.h"
+#include <stddef.h>
 
 guint signal_moved;
 
diff --git a/src/port.c b/src/port.c
index e06c64b..dcd3ac3 100644
--- a/src/port.c
+++ b/src/port.c
@@ -13,17 +13,30 @@
  * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <math.h>
-#include <stdlib.h>
+#include "boilerplate.h"
+#include "color.h"
+#include "ganv-private.h"
+#include "gettext.h"
 
+#include "ganv/box.h"
 #include "ganv/canvas.h"
-#include "ganv/port.h"
+#include "ganv/edge.h"
+#include "ganv/item.h"
 #include "ganv/module.h"
+#include "ganv/node.h"
+#include "ganv/port.h"
+#include "ganv/text.h"
+#include "ganv/types.h"
 
-#include "./boilerplate.h"
-#include "./color.h"
-#include "./ganv-private.h"
-#include "./gettext.h"
+#include <cairo.h>
+#include <gdk/gdk.h>
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
+
+#include <math.h>
+#include <stdarg.h>
+#include <stdlib.h>
 
 static const double PORT_LABEL_HPAD = 4.0;
 static const double PORT_LABEL_VPAD = 1.0;
diff --git a/src/text.c b/src/text.c
index 89e460e..058d765 100644
--- a/src/text.c
+++ b/src/text.c
@@ -13,20 +13,30 @@
  * with Ganv.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <math.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <gtk/gtkstyle.h>
+#include "boilerplate.h"
+#include "color.h"
+#include "ganv-private.h"
+#include "gettext.h"
 
 #include "ganv/canvas.h"
+#include "ganv/item.h"
+#include "ganv/node.h"
 #include "ganv/text.h"
+#include "ganv/types.h"
+
+#include <cairo.h>
+#include <glib-object.h>
+#include <glib.h>
+#include <gtk/gtk.h>
+#include <pango/pango-font.h>
+#include <pango/pango-fontmap.h>
+#include <pango/pango-layout.h>
+#include <pango/pango-types.h>
+#include <pango/pangocairo.h>
 
-#include "./color.h"
-#include "./boilerplate.h"
-#include "./gettext.h"
-#include "./ganv-private.h"
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
 
 G_DEFINE_TYPE_WITH_CODE(GanvText, ganv_text, GANV_TYPE_ITEM,
                         G_ADD_PRIVATE(GanvText))
diff --git a/src/widget.c b/src/widget.c
index 5828922..e67a485 100644
--- a/src/widget.c
+++ b/src/widget.c
@@ -17,15 +17,22 @@
  * Copyright 1997-2000 Free Software Foundation
  */
 
-#include <math.h>
-
-#include <gtk/gtksignal.h>
+#include "ganv-private.h"
+#include "gettext.h"
 
 #include "ganv/canvas.h"
+#include "ganv/item.h"
 #include "ganv/widget.h"
 
-#include "./gettext.h"
-#include "./ganv-private.h"
+#include <cairo.h>
+#include <glib-object.h>
+#include <glib.h>
+#include <gobject/gclosure.h>
+#include <gtk/gtk.h>
+#include <gtk/gtktypebuiltins.h>
+
+#include <math.h>
+#include <stddef.h>
 
 G_DEFINE_TYPE_WITH_CODE(GanvWidget, ganv_widget, GANV_TYPE_ITEM,
                         G_ADD_PRIVATE(GanvWidget))