Move more implementation to C GanvCanvas.

git-svn-id: http://svn.drobilla.net/lad/trunk/ganv@4265 a436a847-0d15-0410-975c-d299462d15a1

2 files changed, 86 insertions, 27 deletions

diff --git a/ganv/Canvas.hpp b/ganv/Canvas.hpp
index 477277d..05ba6e7 100644
--- a/ganv/Canvas.hpp
+++ b/ganv/Canvas.hpp
@@ -57,8 +57,7 @@ public:
 
 	Gtk::Layout& widget();
 
-	/** Remove all ports and edges and modules. */
-	void destroy();
+	METHOD0(ganv_canvas, destroy);
 
 	/** Get the edge from @c tail to @c head if one exists. */
 	Edge* get_edge(Node* tail, Node* head) const;
@@ -66,18 +65,12 @@ public:
 	/** Delete the edge from @c tail to @c head. */
 	void remove_edge(Node* tail, Node* head);
 
-	/** Place @c i at a reasonable default location. */
-	void set_default_placement(Node* i);
-
-	/** Unselect all selected objects. */
-	virtual void clear_selection();
-
-	void select_all();
+	METHOD0(ganv_canvas, clear_selection);
+	METHOD0(ganv_canvas, select_all);
 
 	RW_PROPERTY(gboolean, locked);
 
-	/** Return the current zoom factor (pixels per unit). */
-	double get_zoom();
+	METHOD0(ganv_canvas, get_zoom);
 
 	/** Set the current zoom factor (pixels per unit). */
 	void set_zoom(double pix_per_unit);
@@ -98,21 +91,22 @@ public:
 	void render_to_dot(const std::string& filename);
 
 	/** Automatically arrange the canvas contents if Graphviz is available. */
-	void arrange(bool use_length_hints=false);
+	void arrange();
 
-	/** Shift all canvas contents so the top-left object is at (x, y). */
-	void move_contents_to(double x, double y);
+	METHOD2(ganv_canvas, move_contents_to, double, x, double, y);
 
 	RW_PROPERTY(double, width)
 	RW_PROPERTY(double, height)
 
-	/** Resize the canvas to the given dimensions. */
-	void resize(double width, double height);
+	METHOD2(ganv_canvas, resize, double, width, double, height);
 
 	RW_PROPERTY(GanvDirection, direction);
 
-	void for_each_node(GanvNodeFunction f, void* data);
-	void for_each_selected_node(GanvNodeFunction f, void* data);
+	METHOD2(ganv_canvas, for_each_node,
+	        GanvNodeFunction, f, void*, data)
+
+	METHOD2(ganv_canvas, for_each_selected_node,
+	        GanvNodeFunction, f, void*, data)
 
 	typedef void (*EdgePtrFunction)(GanvEdge* edge, void* data);
 
@@ -131,15 +125,15 @@ public:
 	        const GanvNode*, node,
 	        GanvEdgeFunction, f);
 
-	GQuark wrapper_key();
-
-	GanvItem* root();
-
-	GdkCursor* move_cursor();
+	METHOD0(ganv_canvas, get_move_cursor);
 
 	void get_scroll_offsets(int& cx, int& cy) const;
 	void scroll_to(int x, int y);
 
+	GQuark wrapper_key();
+
+	GanvItem* root();
+
 	GanvCanvas*       gobj();
 	const GanvCanvas* gobj() const;
 
diff --git a/ganv/canvas.h b/ganv/canvas.h
index 352c13c..829b8e2 100644
--- a/ganv/canvas.h
+++ b/ganv/canvas.h
@@ -63,6 +63,10 @@ GType ganv_canvas_get_type(void);
 
 GanvCanvas* ganv_canvas_new(double width, double height);
 
+/**
+ * ganv_canvas_resize:
+ * Resize the canvas to the given dimensions.
+ */
 void
 ganv_canvas_resize(GanvCanvas* canvas, double width, double height);
 
@@ -90,10 +94,6 @@ ganv_canvas_remove_edge_between(GanvCanvas* canvas,
 double
 ganv_canvas_get_default_font_size(const GanvCanvas* canvas);
 
-/** Get the current font size in points. */
-double
-ganv_canvas_get_font_size(const GanvCanvas* canvas);
-
 void
 ganv_canvas_set_font_size(GanvCanvas* canvas, double points);
 
@@ -118,6 +118,22 @@ ganv_canvas_for_each_node(GanvCanvas*      canvas,
                           GanvNodeFunction f,
                           void*            data);
 
+void
+ganv_canvas_for_each_selected_node(GanvCanvas*      canvas,
+                                   GanvNodeFunction f,
+                                   void*            data);
+
+/**
+ * ganv_canvas_for_each_edge:
+ * @canvas: The canvas.
+ * @f: (scope call): A function to call on every edge on @canvas.
+ * @data: Data to pass to @f.
+ */
+void
+ganv_canvas_for_each_edge(GanvCanvas*      canvas,
+                          GanvEdgeFunction f,
+                          void*            data);
+
 /**
  * ganv_canvas_for_each_edge_from:
  * @canvas: The canvas.
@@ -151,6 +167,55 @@ ganv_canvas_for_each_edge_on(GanvCanvas*      canvas,
                              const GanvNode*  node,
                              GanvEdgeFunction f);
 
+/**
+ * ganv_canvas_destroy:
+ * Remove all items from the canvas.
+ */
+void
+ganv_canvas_destroy(GanvCanvas* canvas);
+
+/**
+ * ganv_canvas_select_all:
+ * Select all items on the canvas.
+ */
+void
+ganv_canvas_select_all(GanvCanvas* canvas);
+
+/**
+ * ganv_canvas_get_zoom:
+ * Return the current zoom factor (pixels per unit).
+ */
+double
+ganv_canvas_get_zoom(GanvCanvas* canvas);
+
+/**
+ * ganv_canvas_get_font_size:
+ * Get the current font size in points.
+ */
+double
+ganv_canvas_get_font_size(const GanvCanvas* canvas);
+
+/**
+ * ganv_canvas_set_scale:
+ * Set the zoom and font size for the canvas.
+ */
+void
+ganv_canvas_set_scale(GanvCanvas* canvas, double zoom, double points);
+
+/**
+ * ganv_canvas_get_move_cursor:
+ * Return the cursor to use while dragging canvas objects.
+ */
+GdkCursor*
+ganv_canvas_get_move_cursor(const GanvCanvas* canvas);
+
+/**
+ * ganv_canvas_move_contents_to:
+ * Shift all canvas contents so the top-left object is at (x, y).
+ */
+void
+ganv_canvas_move_contents_to(GanvCanvas* canvas, double x, double y);
+
 G_END_DECLS
 
 #endif  /* GANV_CANVAS_H */