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88 lines
2.2 KiB
C++
88 lines
2.2 KiB
C++
// 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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#ifndef FTXUI_SCREEN_IMAGE_HPP
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#define FTXUI_SCREEN_IMAGE_HPP
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#include <cstdint> // for uint8_t
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#include <memory>
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#include <string> // for string, basic_string, allocator
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#include <vector> // for vector
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#include "ftxui/screen/color.hpp" // for Color, Color::Default
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#include "ftxui/screen/box.hpp" // for Box
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namespace ftxui {
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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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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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underlined_double(false),
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strikethrough(false),
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automerge(false) {}
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// A bit field representing the style:
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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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bool underlined_double : 1;
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bool strikethrough : 1;
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bool automerge : 1;
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// The hyperlink associated with the pixel.
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// 0 is the default value, meaning no hyperlink.
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// It's an index for accessing Screen meta data
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uint8_t hyperlink = 0;
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// The graphemes stored into the pixel. To support combining characters,
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// like: a?, this can potentially contain multiple codepoints.
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std::string character = " ";
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// Colors:
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Color background_color = Color::Default;
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Color foreground_color = Color::Default;
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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 Image {
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public:
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// Constructors:
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Image() = delete;
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Image(int dimx, int dimy);
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// Access a character in the grid at a given position.
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std::string& at(int x, int y);
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const std::string& at(int x, int y) const;
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// Access a cell (Pixel) in the grid at a given position.
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Pixel& PixelAt(int x, int y);
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const Pixel& PixelAt(int x, int y) const;
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// Get screen dimensions.
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int dimx() const { return dimx_; }
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int dimy() const { return dimy_; }
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// Fill the image with space and default style
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void Clear();
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Box stencil;
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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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};
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} // namespace ftxui
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#endif // FTXUI_SCREEN_IMAGE_HPP
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