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https://github.com/ArthurSonzogni/FTXUI.git
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6f87740801
Instead of storing all the booleans with 5 bytes, use a bit field. The size of a Pixel has been reduced by 25%, from 20 byte to 15 bytes.
102 lines
2.1 KiB
C++
102 lines
2.1 KiB
C++
#ifndef FTXUI_SCREEN_SCREEN
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#define FTXUI_SCREEN_SCREEN
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#include <memory>
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#include <string>
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#include <vector>
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#include "ftxui/screen/box.hpp"
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#include "ftxui/screen/color.hpp"
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namespace ftxui {
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class Node;
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}
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namespace ftxui {
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using Element = std::shared_ptr<Node>;
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/// @brief A unicode character and its associated style.
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/// @ingroup screen
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struct Pixel {
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Color background_color = Color::Default;
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Color foreground_color = Color::Default;
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wchar_t character = U' ';
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bool blink : 1;
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bool bold : 1;
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bool dim : 1;
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bool inverted : 1;
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bool underlined : 1;
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Pixel()
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: blink(false),
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bold(false),
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dim(false),
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inverted(false),
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underlined(false) {}
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};
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/// @brief Define how the Screen's dimensions should look like.
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/// @ingroup screen
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struct Dimension {
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/// coucou
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static Dimension Fixed(int);
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/// @brief coucou
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static Dimension Fit(Element&);
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static Dimension Full();
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int dimx;
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int dimy;
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};
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/// @brief A rectangular grid of Pixel.
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/// @ingroup screen
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class Screen {
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public:
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// Constructors:
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Screen(int dimx, int dimy);
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static Screen Create(Dimension dimension);
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static Screen Create(Dimension width, Dimension height);
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// Node write into the screen using Screen::at.
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wchar_t& at(int x, int y);
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Pixel& PixelAt(int x, int y);
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// Convert the screen into a printable string in the terminal.
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std::string ToString();
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void Print();
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// Get screen dimensions.
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int dimx() { return dimx_; }
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int dimy() { return dimy_; }
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// Move the terminal cursor n-lines up with n = dimy().
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std::string ResetPosition(bool clear = false);
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// Fill with space.
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void Clear();
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void ApplyShader();
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Box stencil;
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struct Cursor {
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int x = 0;
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int y = 0;
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};
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Cursor cursor() const { return cursor_; }
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void SetCursor(Cursor cursor) { cursor_ = cursor; }
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protected:
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int dimx_;
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int dimy_;
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std::vector<std::vector<Pixel>> pixels_;
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Cursor cursor_;
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};
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} // namespace ftxui
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#endif /* end of include guard: FTXUI_SCREEN_SCREEN */
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// Copyright 2020 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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