unimplemented functions under styles/

source/styles/color.cpp

@@ -57,6 +57,11 @@ std::size_t indexed_color::index() const
 	return index_;
 }
 
+void indexed_color::index(std::size_t index)
+{
+    index_ = index;
+}
+
 // theme_color implementation
 
 theme_color::theme_color(std::size_t index) : index_(index)
@@ -68,6 +73,11 @@ std::size_t theme_color::index() const
 	return index_;
 }
 
+void theme_color::index(std::size_t index)
+{
+    index_ = index;
+}
+
 // rgb_color implementation
 
 std::string rgb_color::hex_string() const

source/styles/conditional_format.cpp

@@ -81,6 +81,11 @@ bool conditional_format::operator!=(const conditional_format &other) const
 	return !(*this == other);
 }
 
+bool conditional_format::has_border() const
+{
+    return d_->border_id.is_set();
+}
+
 xlnt::border conditional_format::border() const
 {
     return d_->parent->borders.at(d_->border_id.get());
@@ -92,6 +97,11 @@ conditional_format conditional_format::border(const xlnt::border &new_border)
 	return *this;
 }
 
+bool conditional_format::has_fill() const
+{
+    return d_->fill_id.is_set();
+}
+
 xlnt::fill conditional_format::fill() const
 {
     return d_->parent->fills.at(d_->fill_id.get());
@@ -103,6 +113,11 @@ conditional_format conditional_format::fill(const xlnt::fill &new_fill)
 	return *this;
 }
 
+bool conditional_format::has_font() const
+{
+    return d_->font_id.is_set();
+}
+
 xlnt::font conditional_format::font() const
 {
     return d_->parent->fonts.at(d_->font_id.get());

source/styles/protection.cpp

@@ -26,6 +26,26 @@
 
 namespace xlnt {
 
+protection protection::unlocked_and_visible()
+{
+    return protection();
+}
+
+protection protection::locked_and_visible()
+{
+    return protection().locked(true);
+}
+
+protection protection::unlocked_and_hidden()
+{
+    return protection().hidden(true);
+}
+
+protection protection::locked_and_hidden()
+{
+    return protection().locked(true).hidden(true);
+}
+
 protection::protection()
     : locked_(false), hidden_(false)
 {

source/styles/style.cpp

@@ -66,6 +66,11 @@ std::size_t style::builtin_id() const
     return d_->builtin_id.get();
 }
 
+bool style::builtin() const
+{
+    d_->builtin_id.is_set();
+}
+
 std::string style::name() const
 {
     return d_->name;