reorganized file structure layout. more to follow...

git-svn-id: http://svn.clifford.at/openscad/trunk@364 b57f626f-c46c-0410-a088-ec61d464b74c

1 files changed, 166 insertions, 0 deletions

diff --git a/src/control.cc b/src/control.cc
new file mode 100644
index 0000000..19c5255
--- /dev/null
+++ b/src/control.cc
@@ -0,0 +1,166 @@
+/*
+ *  OpenSCAD (www.openscad.at)
+ *  Copyright (C) 2009  Clifford Wolf <clifford@clifford.at>
+ *
+ *  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 2 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, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#define INCLUDE_ABSTRACT_NODE_DETAILS
+
+#include "openscad.h"
+#include "printutils.h"
+
+enum control_type_e {
+	CHILD,
+	ECHO,
+	ASSIGN,
+	FOR,
+	INT_FOR,
+	IF
+};
+
+class ControlModule : public AbstractModule
+{
+public:
+	control_type_e type;
+	ControlModule(control_type_e type) : type(type) { }
+	virtual AbstractNode *evaluate(const Context *ctx, const ModuleInstantiation *inst) const;
+};
+
+void for_eval(AbstractNode *node, int l, const QVector<QString> &call_argnames, const QVector<Value> &call_argvalues, const QVector<ModuleInstantiation*> arg_children, const Context *arg_context)
+{
+	if (call_argnames.size() > l) {
+		QString it_name = call_argnames[l];
+		Value it_values = call_argvalues[l];
+		Context c(arg_context);
+		if (it_values.type == Value::RANGE) {
+			double range_begin = it_values.range_begin;
+			double range_end = it_values.range_end;
+			double range_step = it_values.range_step;
+			if (range_end < range_begin) {
+				double t = range_begin;
+				range_begin = range_end;
+				range_end = t;
+			}
+			if (range_step > 0 && (range_begin-range_end)/range_step < 10000) {
+				for (double i = range_begin; i <= range_end; i += range_step) {
+					c.set_variable(it_name, Value(i));
+					for_eval(node, l+1, call_argnames, call_argvalues, arg_children, &c);
+				}
+			}
+		}
+		else if (it_values.type == Value::VECTOR) {
+			for (int i = 0; i < it_values.vec.size(); i++) {
+				c.set_variable(it_name, *it_values.vec[i]);
+				for_eval(node, l+1, call_argnames, call_argvalues, arg_children, &c);
+			}
+		}
+		else {
+			for_eval(node, l+1, call_argnames, call_argvalues, arg_children, &c);
+		}
+	} else {
+		foreach (ModuleInstantiation *v, arg_children) {
+			AbstractNode *n = v->evaluate(arg_context);
+			if (n != NULL)
+				node->children.append(n);
+		}
+	}
+}
+
+AbstractNode *ControlModule::evaluate(const Context*, const ModuleInstantiation *inst) const
+{
+	if (type == CHILD)
+	{
+		int n = 0;
+		if (inst->argvalues.size() > 0) {
+			double v;
+			if (inst->argvalues[0].getnum(v))
+				n = v;
+		}
+		for (int i = Context::ctx_stack.size()-1; i >= 0; i--) {
+			const Context *c = Context::ctx_stack[i];
+			if (c->inst_p) {
+				if (n < c->inst_p->children.size())
+					return c->inst_p->children[n]->evaluate(c->inst_p->ctx);
+				return NULL;
+			}
+			c = c->parent;
+		}
+		return NULL;
+	}
+
+	AbstractNode *node;
+
+	if (type == INT_FOR)
+		node = new AbstractIntersectionNode(inst);
+	else
+		node = new AbstractNode(inst);
+
+	if (type == ECHO)
+	{
+		QString msg = QString("ECHO: ");
+		for (int i = 0; i < inst->argnames.size(); i++) {
+			if (i > 0)
+				msg += QString(", ");
+			if (!inst->argnames[i].isEmpty())
+				msg += inst->argnames[i] + QString(" = ");
+			msg += inst->argvalues[i].dump();
+		}
+		PRINT(msg);
+	}
+
+	if (type == ASSIGN)
+	{
+		Context c(inst->ctx);
+		for (int i = 0; i < inst->argnames.size(); i++) {
+			if (!inst->argnames[i].isEmpty())
+				c.set_variable(inst->argnames[i], inst->argvalues[i]);
+		}
+		foreach (ModuleInstantiation *v, inst->children) {
+			AbstractNode *n = v->evaluate(&c);
+			if (n != NULL)
+				node->children.append(n);
+		}
+	}
+
+	if (type == FOR || type == INT_FOR)
+	{
+		for_eval(node, 0, inst->argnames, inst->argvalues, inst->children, inst->ctx);
+	}
+
+	if (type == IF)
+	{
+		if (inst->argvalues.size() > 0 && inst->argvalues[0].type == Value::BOOL && inst->argvalues[0].b)
+			foreach (ModuleInstantiation *v, inst->children) {
+				AbstractNode *n = v->evaluate(inst->ctx);
+				if (n != NULL)
+					node->children.append(n);
+			}
+	}
+
+	return node;
+}
+
+void register_builtin_control()
+{
+	builtin_modules["child"] = new ControlModule(CHILD);
+	builtin_modules["echo"] = new ControlModule(ECHO);
+	builtin_modules["assign"] = new ControlModule(ASSIGN);
+	builtin_modules["for"] = new ControlModule(FOR);
+	builtin_modules["intersection_for"] = new ControlModule(INT_FOR);
+	builtin_modules["if"] = new ControlModule(IF);
+}
+