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Make component more functionnal

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ArthurSonzogni
2021-05-09 20:32:27 +02:00
parent 9d15d1c275
commit 6d75cb2748
70 changed files with 2182 additions and 1769 deletions
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96
src/ftxui/component/menu.cpp
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@@ -1,23 +1,63 @@
#include <stddef.h> // for size_t
#include <algorithm> // for max, min
#include <ext/alloc_traits.h> // for __alloc_traits<>::value_type
#include <memory> // for shared_ptr, allocator_traits<>::value_type
#include <utility> // for move
#include "ftxui/component/captured_mouse.hpp" // for CapturedMouse
#include "ftxui/component/event.hpp" // for Event, Event::ArrowDown, Event::ArrowUp, Event::Return, Event::Tab, Event::TabReverse
#include "ftxui/component/menu.hpp"
#include <stddef.h>
#include <algorithm>
#include <memory>
#include <utility>
#include "ftxui/component/captured_mouse.hpp"
#include "ftxui/component/mouse.hpp"
#include "ftxui/component/screen_interactive.hpp"
#include "ftxui/component/mouse.hpp" // for Mouse, Mouse::Left, Mouse::Released
#include "ftxui/component/screen_interactive.hpp" // for Component
namespace ftxui {
Element Menu::Render() {
/// @brief A list of text. The focused element is selected.
/// @param entries The list of entries in the menu.
/// @param selected The index of the currently selected element.
/// @ingroup component
/// @see MenuBase
///
/// ### Example
///
/// ```cpp
/// auto screen = ScreenInteractive::TerminalOutput();
/// std::vector<std::wstring> entries = {
/// L"entry 1",
/// L"entry 2",
/// L"entry 3",
/// };
/// int selected = 0;
/// auto menu = Menu(&entries, &selected);
/// screen.Loop(menu);
/// ```
///
/// ### Output
///
/// ```bash
/// > entry 1
/// entry 2
/// entry 3
/// ```
Component Menu(const std::vector<std::wstring>* entries, int* selected) {
return Make<MenuBase>(entries, selected);
}
// static
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) {}
Element MenuBase::Render() {
Elements elements;
bool is_menu_focused = Focused();
boxes_.resize(entries.size());
for (size_t i = 0; i < entries.size(); ++i) {
boxes_.resize(entries_->size());
for (size_t i = 0; i < entries_->size(); ++i) {
bool is_focused = (focused == int(i)) && is_menu_focused;
bool is_selected = (selected == int(i));
bool is_selected = (*selected_ == int(i));
auto style = is_selected
? (is_focused ? selected_focused_style : selected_style)
@@ -26,13 +66,13 @@ Element Menu::Render() {
: is_menu_focused ? focus
: select;
auto icon = is_selected ? L"> " : L" ";
elements.push_back(text(icon + entries[i]) | style | focus_management |
elements.push_back(text(icon + entries_->at(i)) | style | focus_management |
reflect(boxes_[i]));
}
return vbox(std::move(elements));
}
bool Menu::OnEvent(Event event) {
bool MenuBase::OnEvent(Event event) {
if (!CaptureMouse(event))
return false;
if (event.is_mouse())
@@ -41,20 +81,20 @@ bool Menu::OnEvent(Event event) {
if (!Focused())
return false;
int old_selected = selected;
int old_selected = *selected_;
if (event == Event::ArrowUp || event == Event::Character('k'))
selected--;
(*selected_)--;
if (event == Event::ArrowDown || event == Event::Character('j'))
selected++;
if (event == Event::Tab && entries.size())
selected = (selected + 1) % entries.size();
if (event == Event::TabReverse && entries.size())
selected = (selected + entries.size() - 1) % entries.size();
(*selected_)++;
if (event == Event::Tab && entries_->size())
*selected_ = (*selected_ + 1) % entries_->size();
if (event == Event::TabReverse && entries_->size())
*selected_ = (*selected_ + entries_->size() - 1) % entries_->size();
selected = std::max(0, std::min(int(entries.size()) - 1, selected));
*selected_ = std::max(0, std::min(int(entries_->size()) - 1, *selected_));
if (selected != old_selected) {
focused = selected;
if (*selected_ != old_selected) {
focused = *selected_;
on_change();
return true;
}
@@ -67,7 +107,7 @@ bool Menu::OnEvent(Event event) {
return false;
}
bool Menu::OnMouseEvent(Event event) {
bool MenuBase::OnMouseEvent(Event event) {
if (!CaptureMouse(event))
return false;
for (int i = 0; i < boxes_.size(); ++i) {
@@ -78,8 +118,8 @@ bool Menu::OnMouseEvent(Event event) {
focused = i;
if (event.mouse().button == Mouse::Left &&
event.mouse().motion == Mouse::Released) {
if (selected != i) {
selected = i;
if (*selected_ != i) {
*selected_ = i;
on_change();
}
return true;