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Introduce Options and use them for Menu.

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Introduce Options for components. This allows me to add new features,
without updating functions signatures.
This commit is contained in:
ArthurSonzogni
2021-07-07 22:13:33 +02:00
committed by Arthur Sonzogni
parent 82adc3b410
commit cd84b187b3
10 changed files with 168 additions and 120 deletions
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25
src/ftxui/component/menu.cpp
View File

@@ -38,8 +38,10 @@ namespace ftxui {
/// entry 2
/// entry 3
/// ```
Component Menu(const std::vector<std::wstring>* entries, int* selected) {
return Make<MenuBase>(entries, selected);
Component Menu(const std::vector<std::wstring>* entries,
int* selected,
ConstRef<MenuOption> option) {
return Make<MenuBase>(entries, selected, std::move(option));
}
// static
@@ -47,8 +49,10 @@ MenuBase* MenuBase::From(Component component) {
return static_cast<MenuBase*>(component.get());
}
MenuBase::MenuBase(const std::vector<std::wstring>* entries, int* selected)
: entries_(entries), selected_(selected) {}
MenuBase::MenuBase(const std::vector<std::wstring>* entries,
int* selected,
ConstRef<MenuOption> option)
: entries_(entries), selected_(selected), option_(option) {}
Element MenuBase::Render() {
Elements elements;
@@ -58,9 +62,10 @@ Element MenuBase::Render() {
bool is_focused = (focused == int(i)) && is_menu_focused;
bool is_selected = (*selected_ == int(i));
auto style = is_selected
? (is_focused ? selected_focused_style : selected_style)
: (is_focused ? focused_style : normal_style);
auto style = is_selected ? (is_focused ? option_->selected_focused_style
: option_->selected_style)
: (is_focused ? option_->focused_style
: option_->normal_style);
auto focus_management = !is_selected ? nothing
: is_menu_focused ? focus
: select;
@@ -94,12 +99,12 @@ bool MenuBase::OnEvent(Event event) {
if (*selected_ != old_selected) {
focused = *selected_;
on_change();
option_->on_change();
return true;
}
if (event == Event::Return) {
on_enter();
option_->on_enter();
return true;
}
@@ -119,7 +124,7 @@ bool MenuBase::OnMouseEvent(Event event) {
event.mouse().motion == Mouse::Released) {
if (*selected_ != i) {
*selected_ = i;
on_change();
option_->on_change();
}
return true;
}

24
src/ftxui/screen/string.cpp
View File

@@ -26,30 +26,6 @@ std::wstring to_wstring(const std::string& s) {
#pragma warning(pop)
#endif
StringRef::StringRef(std::wstring* ref) : borrowed_(ref) {}
StringRef::StringRef(std::wstring ref) : owned_(std::move(ref)) {}
StringRef::StringRef(const wchar_t* ref) : owned_(ref) {}
StringRef::StringRef(const char* ref) : owned_(to_wstring(std::string(ref))) {}
std::wstring& StringRef::operator*() {
return borrowed_ ? *borrowed_ : owned_;
}
std::wstring* StringRef::operator->() {
return borrowed_ ? borrowed_ : &owned_;
}
ConstStringRef::ConstStringRef(const std::wstring* ref) : borrowed_(ref) {}
ConstStringRef::ConstStringRef(std::wstring ref) : owned_(std::move(ref)) {}
ConstStringRef::ConstStringRef(const wchar_t* ref) : owned_(ref) {}
ConstStringRef::ConstStringRef(const char* ref)
: owned_(to_wstring(std::string(ref))) {}
const std::wstring& ConstStringRef::operator*() {
return borrowed_ ? *borrowed_ : owned_;
}
const std::wstring* ConstStringRef::operator->() {
return borrowed_ ? borrowed_ : &owned_;
}
} // namespace ftxui
// Copyright 2020 Arthur Sonzogni. All rights reserved.