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3b4ab618a3
In the past, FTXUI switched from std::string to std::wstring to support fullwidth characters. The reasons was that fullwidth characters can be stored inside a single wchar_t. Then FTXUI added support for combining characters. A single glygh doesn't even fit a wchar_t. Instead, a glyph can be arbitrary large. The usage of wstring doesn't really fit the new model and have several drawbacks: 1. It doesn't simplify the implementation of FTXUI, because of combining characters. 2. It reduces drawing performance by 2x. 3. It increase Screen's memory allocation by 2x. This patch converts FTXUI to use std::string internally. It now exposes std::string based API. The std::wstring API remains, but is now deprecated. Tests and examples haven't been update to show the breakage is limited. They will be updated in a second set of patches. Bug: https://github.com/ArthurSonzogni/FTXUI/issues/153 Co-authored-by: Tushar Maheshwari <tushar27192@gmail.com>
97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
#ifndef FTXUI_COMPONENT_COMPONENT_OPTIONS_HPP
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#define FTXUI_COMPONENT_COMPONENT_OPTIONS_HPP
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#include <ftxui/dom/elements.hpp>
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#include <ftxui/util/ref.hpp>
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namespace ftxui {
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/// @brief Option for the Menu component.
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/// @ingroup component
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struct MenuOption {
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Decorator style_normal = nothing; ///< style.
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Decorator style_focused = inverted; ///< Style when focused.
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Decorator style_selected = bold; ///< Style when selected.
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Decorator style_selected_focused =
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Decorator(inverted) | bold; ///< Style when selected and focused.
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/// Called when the selected entry changes.
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std::function<void()> on_change = [] {};
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/// Called when the user presses enter.
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std::function<void()> on_enter = [] {};
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Ref<int> focused_entry = 0;
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};
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/// @brief Option for the Button component.
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/// @ingroup component
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struct ButtonOption {
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/// Whether to show a border around the button.
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bool border = true;
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};
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/// @brief Option for the Checkbox component.
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/// @ingroup component
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struct CheckboxOption {
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std::string style_checked = "▣ "; ///< Prefix for a "checked" state.
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std::string style_unchecked = "☐ "; ///< Prefix for a "unchecked" state.
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Decorator style_focused = inverted; ///< Decorator used when focused.
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Decorator style_unfocused = nothing; ///< Decorator used when unfocused.
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/// Called when the user change the state.
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std::function<void()> on_change = []() {};
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};
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/// @brief Option for the Input component.
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/// @ingroup component
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struct InputOption {
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/// Called when the content changes.
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std::function<void()> on_change = [] {};
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/// Called when the user presses enter.
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std::function<void()> on_enter = [] {};
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/// Obscure the input content using '*'.
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bool password = false;
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Ref<int> cursor_position = 0;
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};
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/// @brief Option for the Radiobox component.
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/// @ingroup component
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struct RadioboxOption {
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std::string style_checked = "◉ "; ///< Prefix for a "checked" state.
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std::string style_unchecked = "○ "; ///< Prefix for a "unchecked" state.
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Decorator style_focused = inverted; ///< Decorator used when focused.
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Decorator style_unfocused = nothing; ///< Decorator used when unfocused.
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/// Called when the selected entry changes.
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std::function<void()> on_change = []() {};
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Ref<int> focused_entry = 0;
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};
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/// @brief Option for the Toggle component.
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/// @ingroup component
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struct ToggleOption {
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Decorator style_normal = nothing; ///< style.
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Decorator style_focused = inverted; ///< Style when focused.
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Decorator style_selected = bold; ///< Style when selected.
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Decorator style_selected_focused =
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Decorator(inverted) | bold; ///< Style when selected and focused.
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/// Called when the selected entry changes.
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std::function<void()> on_change = [] {};
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/// Called when the user presses enter.
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std::function<void()> on_enter = [] {};
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Ref<int> focused_entry = 0;
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};
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} // namespace ftxui
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#endif /* end of include guard: FTXUI_COMPONENT_COMPONENT_OPTIONS_HPP */
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// Copyright 2021 Arthur Sonzogni. All rights reserved.
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// Use of this source code is governed by the MIT license that can be found in
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// the LICENSE file.
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