1 files changed, 148 insertions, 0 deletions
diff --git a/tree/node.c b/tree/node.c
new file mode 100644
index 00000000..8b9d48cc
--- /dev/null
+++ b/tree/node.c
@@ -0,0 +1,148 @@
+#include <fitz.h>
+
+void fz_freeover(fz_over* node);
+void fz_freemask(fz_mask* node);
+void fz_freeblend(fz_blend* node);
+void fz_freetransform(fz_transform* node);
+void fz_freeform(fz_form* node);
+void fz_freesolid(fz_solid* node);
+void fz_freepath(fz_path* node);
+void fz_freetext(fz_text* node);
+void fz_freeimage(fz_image* node);
+
+fz_rect fz_boundover(fz_over* node, fz_matrix ctm);
+fz_rect fz_boundmask(fz_mask* node, fz_matrix ctm);
+fz_rect fz_boundblend(fz_blend* node, fz_matrix ctm);
+fz_rect fz_boundtransform(fz_transform* node, fz_matrix ctm);
+fz_rect fz_boundform(fz_form* node, fz_matrix ctm);
+fz_rect fz_boundsolid(fz_solid* node, fz_matrix ctm);
+fz_rect fz_boundpath(fz_path* node, fz_matrix ctm);
+fz_rect fz_boundtext(fz_text* node, fz_matrix ctm);
+fz_rect fz_boundimage(fz_image* node, fz_matrix ctm);
+
+void
+fz_initnode(fz_node *node, fz_nodekind kind)
+{
+	node->kind = kind;
+	node->parent = nil;
+}
+
+void
+fz_freenode(fz_node *node)
+{
+	if (node->next)
+		fz_freenode(node->next);
+
+	switch (node->kind)
+	{
+	case FZ_NOVER:
+		fz_freeover((fz_over *) node);
+		break;
+	case FZ_NMASK:
+		fz_freemask((fz_mask *) node);
+		break;
+	case FZ_NBLEND:
+		fz_freeblend((fz_blend *) node);
+		break;
+	case FZ_NTRANSFORM:
+		fz_freetransform((fz_transform *) node);
+		break;
+	case FZ_NFORM:
+		fz_freeform((fz_form *) node);
+		break;
+	case FZ_NSOLID:
+		fz_freesolid((fz_solid *) node);
+		break;
+	case FZ_NPATH:
+		fz_freepath((fz_path *) node);
+		break;
+	case FZ_NTEXT:
+		fz_freetext((fz_text *) node);
+		break;
+	case FZ_NIMAGE:
+		fz_freeimage((fz_image *) node);
+		break;
+	}
+}
+
+fz_rect
+fz_boundnode(fz_node *node, fz_matrix ctm)
+{
+	switch (node->kind)
+	{
+	case FZ_NOVER:
+		return fz_boundover((fz_over *) node, ctm);
+	case FZ_NMASK:
+		return fz_boundmask((fz_mask *) node, ctm);
+	case FZ_NBLEND:
+		return fz_boundblend((fz_blend *) node, ctm);
+	case FZ_NTRANSFORM:
+		return fz_boundtransform((fz_transform *) node, ctm);
+	case FZ_NFORM:
+		return fz_boundform((fz_form *) node, ctm);
+	case FZ_NSOLID:
+		return fz_boundsolid((fz_solid *) node, ctm);
+	case FZ_NPATH:
+		return fz_boundpath((fz_path *) node, ctm);
+	case FZ_NTEXT:
+		return fz_boundtext((fz_text *) node, ctm);
+	case FZ_NIMAGE:
+		return fz_boundimage((fz_image *) node, ctm);
+	}
+	return FZ_INFRECT;
+}
+
+int
+fz_isover(fz_node *node)
+{
+	return node ? node->kind == FZ_NOVER : 0;
+}
+
+int
+fz_ismask(fz_node *node)
+{
+	return node ? node->kind == FZ_NMASK : 0;
+}
+
+int
+fz_isblend(fz_node *node)
+{
+	return node ? node->kind == FZ_NBLEND : 0;
+}
+
+int
+fz_istransform(fz_node *node)
+{
+	return node ? node->kind == FZ_NTRANSFORM : 0;
+}
+
+int
+fz_isform(fz_node *node)
+{
+	return node ? node->kind == FZ_NFORM : 0;
+}
+
+int
+fz_issolid(fz_node *node)
+{
+	return node ? node->kind == FZ_NSOLID : 0;
+}
+
+int
+fz_ispath(fz_node *node)
+{
+	return node ? node->kind == FZ_NPATH : 0;
+}
+
+int
+fz_istext(fz_node *node)
+{
+	return node ? node->kind == FZ_NTEXT : 0;
+}
+
+int
+fz_isimage(fz_node *node)
+{
+	return node ? node->kind == FZ_NIMAGE : 0;
+}
+