X-Git-Url: http://pileus.org/git/?p=grits;a=blobdiff_plain;f=src%2Fobjects%2Fgrits-object.h;h=2c11cd3ba1751d9d64a35ef42ad0e4eaa4d18e7d;hp=b8a91a6d3fce707441196cd46bda5d647e4ec393;hb=67a63167629adc48ff31530dd58ece577f3d7460;hpb=f383c18c9f85a1b439c6bfb2a27d652278ed019a

diff --git a/src/objects/grits-object.h b/src/objects/grits-object.h
index b8a91a6..2c11cd3 100644
--- a/src/objects/grits-object.h
+++ b/src/objects/grits-object.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
+ * Copyright (C) 2009-2011 Andy Spencer <andy753421@gmail.com>
  *
  * 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
@@ -30,22 +30,46 @@
 #define GRITS_IS_OBJECT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE   ((klass), GRITS_TYPE_OBJECT))
 #define GRITS_OBJECT_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),   GRITS_TYPE_OBJECT, GritsObjectClass))
 
+/* Bitmask of things to skip while drawing the object */
+#define GRITS_SKIP_LOD     (1<<0)
+#define GRITS_SKIP_HORIZON (1<<1)
+#define GRITS_SKIP_CENTER  (1<<2)
+#define GRITS_SKIP_STATE   (1<<3)
+
+/* Mouse move threshold for clicking */
+#define GRITS_CLICK_THRESHOLD 8
+
+/* Picking states */
+typedef struct {
+	guint picked   : 1;
+	guint selected : 1;
+	guint clicking : 6;
+} GritsState;
+
 typedef struct _GritsObject      GritsObject;
 typedef struct _GritsObjectClass GritsObjectClass;
 
+#include "grits-opengl.h"
 struct _GritsObject {
-	GObject    parent_instance;
-	GritsPoint center;
-	gboolean   hidden;
-	gdouble    lod;
+	GObject      parent_instance;
+	GritsViewer *viewer; // The viewer the object was added to
+	gpointer     ref;    // Reference for objects that have been added
+	GritsPoint   center; // Center of the object
+	gboolean     hidden; // If true, the object will not be drawn
+	gdouble      lod;    // Level of detail, used to hide small objects
+	guint32      skip;   // Bit mask of safe operations
+
+	GritsState   state;  // Internal, used for picking
+	GdkCursor   *cursor; // Internal, cached cursor
 };
 
-#include "grits-opengl.h"
 struct _GritsObjectClass {
 	GObjectClass parent_class;
 
 	/* Move some of these to GObject? */
 	void (*draw) (GritsObject *object, GritsOpenGL *opengl);
+	void (*pick) (GritsObject *object, GritsOpenGL *opengl);
+	void (*hide) (GritsObject *object, gboolean hidden);
 };
 
 GType grits_object_get_type(void);
@@ -53,6 +77,54 @@ GType grits_object_get_type(void);
 /* Implemented by sub-classes */
 void grits_object_draw(GritsObject *object, GritsOpenGL *opengl);
 
+void grits_object_hide(GritsObject *object, gboolean hidden);
+
+/* Interal, used by grits_opengl */
+void grits_object_pick(GritsObject *object, GritsOpenGL *opengl);
+gboolean grits_object_set_pointer(GritsObject *object, GdkEvent *event, gboolean selected);
+gboolean grits_object_event(GritsObject *object, GdkEvent *event);
+
+/**
+ * grits_object_queue_draw:
+ * @object: The #GritsObject that needs drawing
+ * 
+ * Cause the widget to be redrawn on the screen at some later point
+ */
+void grits_object_queue_draw(GritsObject *object);
+
+/**
+ * grits_object_set_cursor:
+ * @object: The #GritsObject to set the cursor for
+ * @cursor: The cursor to use when the object is hovered over
+ *
+ * Causes the cursor to use a particular icon when located over a given object
+ */
+void grits_object_set_cursor(GritsObject *object, GdkCursorType cursor);
+
+/**
+ * grits_object_destroy:
+ * @object: The #GritsObject to destroy
+ *
+ * Removes the widget from it's current viewer (if it has one) and decrements
+ * it's reference count.
+ */
+void grits_object_destroy(GritsObject *object);
+
+/**
+ * grits_object_destroy_pointer:
+ * @object: The pointer to the #GritsObject to destroy
+ *
+ * This functions the same as grits_object_destroy, except that the location of
+ * the object is set to null before proceeding.
+ */
+#define grits_object_destroy_pointer(object) ({           \
+	if (*object) {                                    \
+		GritsObject *tmp = GRITS_OBJECT(*object); \
+		*object = NULL;                           \
+		grits_object_destroy(tmp);                \
+	}                                                 \
+})
+
 /**
  * grits_object_center:
  * @object: The #GritsObject to get the center of