GODOT IS OPEN SOURCE

1 files changed, 290 insertions, 0 deletions

diff --git a/scene/gui/range.cpp b/scene/gui/range.cpp
new file mode 100644
index 0000000000..bc0fa9675e
--- /dev/null
+++ b/scene/gui/range.cpp
@@ -0,0 +1,290 @@
+/*************************************************************************/
+/*  range.cpp                                                            */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#include "range.h"
+
+
+
+void Range::_value_changed_notify() {
+
+	_value_changed(shared->val);
+	emit_signal("value_changed",shared->val);
+	update();
+	_change_notify("range/value");
+}
+
+void Range::Shared::emit_value_changed() {
+
+	for (Set<Range*>::Element *E=owners.front();E;E=E->next()) {
+		Range *r=E->get();
+		if (!r->is_inside_scene())
+			continue;
+		r->_value_changed_notify();
+	}
+}
+
+void Range::_changed_notify() {
+
+	emit_signal("changed",shared->val);
+	update();
+	_change_notify();
+}
+
+void Range::Shared::emit_changed() {
+
+	for (Set<Range*>::Element *E=owners.front();E;E=E->next()) {
+		Range *r=E->get();
+		if (!r->is_inside_scene())
+			continue;
+		r->_changed_notify();
+	}
+}
+
+
+void Range::set_val(double p_val) {
+	
+	if(_rounded_values){
+		p_val = Math::round(p_val);
+	}
+	
+	if (p_val>shared->max-shared->page)
+		p_val=shared->max-shared->page;
+	
+	if (p_val<shared->min)
+		p_val=shared->min;
+	
+	if (shared->val==p_val)
+		return;
+	
+	shared->val=p_val;
+	
+	shared->emit_value_changed();
+}
+void Range::set_min(double p_min) {
+	
+	shared->min=p_min;
+	set_val(shared->val);
+	
+	shared->emit_changed();
+}
+void Range::set_max(double p_max) {
+	
+	shared->max=p_max;
+	set_val(shared->val);
+		
+	shared->emit_changed();
+
+}
+void Range::set_step(double p_step) {
+	
+	shared->step=p_step;
+	shared->emit_changed();
+
+}
+void Range::set_page(double p_page) {
+	
+	shared->page=p_page;
+	set_val(shared->val);
+			
+	shared->emit_changed();
+}
+
+double Range::get_val() const {
+	
+	return shared->val;
+}
+double Range::get_min() const {
+	
+	return shared->min;
+}
+double Range::get_max() const {
+	
+	return shared->max;
+}
+double Range::get_step() const {
+	
+	return shared->step;
+}
+double Range::get_page() const {
+	
+	return shared->page;
+}
+
+void Range::set_unit_value(double p_value) {
+	if (shared->exp_unit_value && get_min()>0) {
+
+		double exp_min = Math::log(get_min())/Math::log(2);
+		double exp_max = Math::log(get_max())/Math::log(2);
+		double v = Math::pow(2,exp_min+(exp_max-exp_min)*p_value);
+
+		set_val( v );
+	} else {
+		set_val( (get_max() - get_min()) * p_value + get_min() );
+	}
+}
+double Range::get_unit_value() const {
+
+	if (shared->exp_unit_value && get_min()>0) {
+
+		double exp_min = Math::log(get_min())/Math::log(2);
+		double exp_max = Math::log(get_max())/Math::log(2);
+		double v = Math::log(get_val())/Math::log(2);
+
+		return (v - exp_min) / (exp_max - exp_min);
+
+	} else {
+
+		return (get_val() - get_min()) / (get_max() - get_min());
+	}
+}
+
+void Range::_share(Node *p_range) {
+
+	Range * r = p_range->cast_to<Range>();
+	ERR_FAIL_COND(!r);
+	share(r);
+}
+
+void Range::share(Range *p_range) {
+
+	ERR_FAIL_NULL(p_range);
+
+	p_range->_ref_shared(shared);
+	p_range->_changed_notify();
+	p_range->_value_changed_notify();
+}
+
+void Range::unshare() {
+
+	Shared * nshared = memnew(Shared);
+	nshared->min=shared->min;
+	nshared->max=shared->max;
+	nshared->val=shared->val;
+	nshared->step=shared->step;
+	nshared->page=shared->page;
+	_unref_shared();
+	_ref_shared(nshared);
+}
+
+void Range::_ref_shared(Shared *p_shared) {
+
+	if (shared && p_shared==shared)
+		return;
+
+	_unref_shared();
+	shared=p_shared;
+	shared->owners.insert(this);
+}
+
+
+void Range::_unref_shared() {
+
+	shared->owners.erase(this);
+	if (shared->owners.size()==0) {
+		memdelete(shared);
+		shared=NULL;
+	}
+}
+
+void Range::_bind_methods() {
+
+	ObjectTypeDB::bind_method(_MD("get_val"),&Range::get_val);
+	ObjectTypeDB::bind_method(_MD("get_value"),&Range::get_val);
+	ObjectTypeDB::bind_method(_MD("get_min"),&Range::get_min);
+	ObjectTypeDB::bind_method(_MD("get_max"),&Range::get_max);		
+	ObjectTypeDB::bind_method(_MD("get_step"),&Range::get_step);		
+	ObjectTypeDB::bind_method(_MD("get_page"),&Range::get_page);		
+	ObjectTypeDB::bind_method(_MD("get_unit_value"),&Range::get_unit_value);		
+	ObjectTypeDB::bind_method(_MD("get_rounded_values"),&Range::get_rounded_values);		
+	ObjectTypeDB::bind_method(_MD("set_val","value"),&Range::set_val);
+	ObjectTypeDB::bind_method(_MD("set_value","value"),&Range::set_val);
+	ObjectTypeDB::bind_method(_MD("set_min","minimum"),&Range::set_min);
+	ObjectTypeDB::bind_method(_MD("set_max","maximum"),&Range::set_max);
+	ObjectTypeDB::bind_method(_MD("set_step","step"),&Range::set_step);
+	ObjectTypeDB::bind_method(_MD("set_page","pagesize"),&Range::set_page);
+	ObjectTypeDB::bind_method(_MD("set_unit_value","value"),&Range::set_unit_value);
+	ObjectTypeDB::bind_method(_MD("set_rounded_values"),&Range::set_rounded_values);		
+	ObjectTypeDB::bind_method(_MD("set_exp_unit_value","enabled"),&Range::set_exp_unit_value);
+	ObjectTypeDB::bind_method(_MD("is_unit_value_exp"),&Range::is_unit_value_exp);
+
+	ObjectTypeDB::bind_method(_MD("share","with"),&Range::_share);
+	ObjectTypeDB::bind_method(_MD("unshare"),&Range::unshare);
+
+	ADD_SIGNAL( MethodInfo("value_changed", PropertyInfo(Variant::REAL,"value")));
+	ADD_SIGNAL( MethodInfo("changed"));
+
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "range/min" ), _SCS("set_min"), _SCS("get_min") );
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "range/max" ), _SCS("set_max"), _SCS("get_max") );
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "range/step" ), _SCS("set_step"), _SCS("get_step") );
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "range/page" ), _SCS("set_page"), _SCS("get_page") );
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "range/value" ), _SCS("set_val"), _SCS("get_val") );
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "range/exp_edit" ), _SCS("set_exp_unit_value"), _SCS("is_unit_value_exp") );
+	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "rounded_values" ), _SCS("set_rounded_values"), _SCS("get_rounded_values") );
+
+}
+
+void Range::set_rounded_values(bool p){
+	_rounded_values = p;
+}
+
+bool Range::get_rounded_values() const{
+	return 	_rounded_values;
+}
+
+void Range::set_exp_unit_value(bool p_enable) {
+
+	shared->exp_unit_value=p_enable;
+}
+
+bool Range::is_unit_value_exp() const {
+
+	return shared->exp_unit_value;
+}
+
+
+Range::Range()
+{
+	shared = memnew(Shared);
+	shared->min=0;
+	shared->max=100;
+	shared->val=
+	shared->step=1;
+	shared->page=0;
+	shared->owners.insert(this);
+	shared->exp_unit_value=false;
+
+	_rounded_values = false;
+}
+
+
+Range::~Range() {
+
+	_unref_shared();
+}
+
+