mirror of
https://github.com/ArthurSonzogni/FTXUI.git
synced 2024-11-22 10:40:00 +08:00
09a2c077eb
Co-authored-by: Sebastian Carrion Ständer <sebastian.carrion@tum.de>
140 lines
5.2 KiB
C++
140 lines
5.2 KiB
C++
#ifndef FTXUI_DOM_CANVAS_HPP
|
|
#define FTXUI_DOM_CANVAS_HPP
|
|
|
|
#include <cstddef> // for size_t
|
|
#include <functional> // for function
|
|
#include <string> // for string
|
|
#include <unordered_map> // for unordered_map
|
|
|
|
#include "ftxui/screen/color.hpp" // for Color
|
|
#include "ftxui/screen/screen.hpp" // for Pixel
|
|
|
|
#ifdef DrawText
|
|
// Workaround for WinUsr.h (via Windows.h) defining macros that break things.
|
|
// https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-drawtext
|
|
#undef DrawText
|
|
#endif
|
|
|
|
namespace ftxui {
|
|
|
|
struct Canvas {
|
|
public:
|
|
Canvas() = default;
|
|
Canvas(int width, int height);
|
|
|
|
// Getters:
|
|
int width() const { return width_; }
|
|
int height() const { return height_; }
|
|
Pixel GetPixel(int x, int y) const;
|
|
|
|
using Stylizer = std::function<void(Pixel&)>;
|
|
|
|
// Draws using braille characters --------------------------------------------
|
|
void DrawPointOn(int x, int y);
|
|
void DrawPointOff(int x, int y);
|
|
void DrawPointToggle(int x, int y);
|
|
void DrawPoint(int x, int y, bool value);
|
|
void DrawPoint(int x, int y, bool value, const Stylizer& s);
|
|
void DrawPoint(int x, int y, bool value, const Color& color);
|
|
void DrawPointLine(int x1, int y1, int x2, int y2);
|
|
void DrawPointLine(int x1, int y1, int x2, int y2, const Stylizer& s);
|
|
void DrawPointLine(int x1, int y1, int x2, int y2, const Color& color);
|
|
void DrawPointCircle(int x, int y, int radius);
|
|
void DrawPointCircle(int x, int y, int radius, const Stylizer& s);
|
|
void DrawPointCircle(int x, int y, int radius, const Color& color);
|
|
void DrawPointCircleFilled(int x, int y, int radius);
|
|
void DrawPointCircleFilled(int x, int y, int radius, const Stylizer& s);
|
|
void DrawPointCircleFilled(int x, int y, int radius, const Color& color);
|
|
void DrawPointEllipse(int x, int y, int r1, int r2);
|
|
void DrawPointEllipse(int x, int y, int r1, int r2, const Color& color);
|
|
void DrawPointEllipse(int x, int y, int r1, int r2, const Stylizer& s);
|
|
void DrawPointEllipseFilled(int x, int y, int r1, int r2);
|
|
void DrawPointEllipseFilled(int x, int y, int r1, int r2, const Color& color);
|
|
void DrawPointEllipseFilled(int x, int y, int r1, int r2, const Stylizer& s);
|
|
|
|
// Draw using box characters -------------------------------------------------
|
|
// Block are of size 1x2. y is considered to be a multiple of 2.
|
|
void DrawBlockOn(int x, int y);
|
|
void DrawBlockOff(int x, int y);
|
|
void DrawBlockToggle(int x, int y);
|
|
void DrawBlock(int x, int y, bool value);
|
|
void DrawBlock(int x, int y, bool value, const Stylizer& s);
|
|
void DrawBlock(int x, int y, bool value, const Color& color);
|
|
void DrawBlockLine(int x1, int y1, int x2, int y2);
|
|
void DrawBlockLine(int x1, int y1, int x2, int y2, const Stylizer& s);
|
|
void DrawBlockLine(int x1, int y1, int x2, int y2, const Color& color);
|
|
void DrawBlockCircle(int x1, int y1, int radius);
|
|
void DrawBlockCircle(int x1, int y1, int radius, const Stylizer& s);
|
|
void DrawBlockCircle(int x1, int y1, int radius, const Color& color);
|
|
void DrawBlockCircleFilled(int x1, int y1, int radius);
|
|
void DrawBlockCircleFilled(int x1, int y1, int radius, const Stylizer& s);
|
|
void DrawBlockCircleFilled(int x1, int y1, int radius, const Color& color);
|
|
void DrawBlockEllipse(int x1, int y1, int r1, int r2);
|
|
void DrawBlockEllipse(int x1, int y1, int r1, int r2, const Stylizer& s);
|
|
void DrawBlockEllipse(int x1, int y1, int r1, int r2, const Color& color);
|
|
void DrawBlockEllipseFilled(int x1, int y1, int r1, int r2);
|
|
void DrawBlockEllipseFilled(int x1,
|
|
int y1,
|
|
int r1,
|
|
int r2,
|
|
const Stylizer& s);
|
|
void DrawBlockEllipseFilled(int x1,
|
|
int y1,
|
|
int r1,
|
|
int r2,
|
|
const Color& color);
|
|
|
|
// Draw using normal characters ----------------------------------------------
|
|
// Draw using character of size 2x4 at position (x,y)
|
|
// x is considered to be a multiple of 2.
|
|
// y is considered to be a multiple of 4.
|
|
void DrawText(int x, int y, const std::string& value);
|
|
void DrawText(int x, int y, const std::string& value, const Color& color);
|
|
void DrawText(int x, int y, const std::string& value, const Stylizer& style);
|
|
|
|
// Decorator:
|
|
// x is considered to be a multiple of 2.
|
|
// y is considered to be a multiple of 4.
|
|
void Style(int x, int y, const Stylizer& style);
|
|
|
|
private:
|
|
bool IsIn(int x, int y) const {
|
|
return x >= 0 && x < width_ && y >= 0 && y < height_;
|
|
}
|
|
enum CellType {
|
|
kBraille,
|
|
kBlock,
|
|
kText,
|
|
};
|
|
struct Cell {
|
|
CellType type = kText;
|
|
Pixel content;
|
|
};
|
|
struct XY {
|
|
int x;
|
|
int y;
|
|
bool operator==(const XY& other) const {
|
|
return x == other.x && y == other.y;
|
|
}
|
|
};
|
|
|
|
struct XYHash {
|
|
size_t operator()(const XY& xy) const {
|
|
constexpr size_t shift = 1024;
|
|
return size_t(xy.x) * shift + size_t(xy.y);
|
|
}
|
|
};
|
|
|
|
int width_ = 0;
|
|
int height_ = 0;
|
|
std::unordered_map<XY, Cell, XYHash> storage_;
|
|
};
|
|
|
|
} // namespace ftxui
|
|
|
|
#endif // FTXUI_DOM_CANVAS_HPP
|
|
|
|
// Copyright 2021 Arthur Sonzogni. All rights reserved.
|
|
// Use of this source code is governed by the MIT license that can be found in
|
|
// the LICENSE file.
|