issues name change

src/ftxui/dom/text.hpp

@@ -0,0 +1,183 @@
+// Copyright 2020 Arthur Sonzogni. All rights reserved.
+// Use of this source code is governed by the MIT license that can be found in
+// the LICENSE file.
+#include <algorithm>  // for min
+#include <memory>     // for make_shared
+#include <string>     // for string, wstring
+#include <utility>    // for move
+
+#include "ftxui/dom/deprecated.hpp"   // for text, vtext
+#include "ftxui/dom/elements.hpp"     // for Element, text, vtext
+#include "ftxui/dom/node.hpp"         // for Node
+#include "ftxui/dom/requirement.hpp"  // for Requirement
+#include "ftxui/screen/box.hpp"       // for Box
+#include "ftxui/screen/screen.hpp"    // for Pixel, Screen
+#include "ftxui/screen/string.hpp"  // for string_width, Utf8ToGlyphs, to_string
+
+namespace ftxui {
+
+namespace {
+using ftxui::Screen;
+
+class Text : public Node {
+ public:
+  explicit Text(std::string text) : text_(std::move(text)) {}
+
+  void ComputeRequirement() override {
+    requirement_.min_x = string_width(text_);
+    requirement_.min_y = 1;
+  }
+
+  void Render(Screen& screen) override {
+    int x = box_.x_min;
+    const int y = box_.y_min;
+    if (y > box_.y_max) {
+      return;
+    }
+    for (const auto& cell : Utf8ToGlyphs(text_)) {
+      if (x > box_.x_max) {
+        return;
+      }
+      if (cell == "\n") {
+        continue;
+      }
+      screen.PixelAt(x, y).character = cell;
+      ++x;
+    }
+  }
+
+ private:
+  std::string text_;
+};
+
+class VText : public Node {
+ public:
+  explicit VText(std::string text)
+      : text_(std::move(text)), width_{std::min(string_width(text_), 1)} {}
+
+  void ComputeRequirement() override {
+    requirement_.min_x = width_;
+    requirement_.min_y = string_width(text_);
+  }
+
+  void Render(Screen& screen) override {
+    const int x = box_.x_min;
+    int y = box_.y_min;
+    if (x + width_ - 1 > box_.x_max) {
+      return;
+    }
+    for (const auto& it : Utf8ToGlyphs(text_)) {
+      if (y > box_.y_max) {
+        return;
+      }
+      screen.PixelAt(x, y).character = it;
+      y += 1;
+    }
+  }
+
+ private:
+  std::string text_;
+  int width_ = 1;
+};
+
+}  // namespace
+
+/// @brief Display a piece of UTF8 encoded unicode text.
+/// @ingroup dom
+/// @see ftxui::to_wstring
+///
+/// ### Example
+///
+/// ```cpp
+/// Element document = text("Hello world!");
+/// ```
+///
+/// ### Output
+///
+/// ```bash
+/// Hello world!
+/// ```
+Element text(std::string text) {
+  return std::make_shared<Text>(std::move(text));
+}
+
+/// @brief Display a piece of unicode text.
+/// @ingroup dom
+/// @see ftxui::to_wstring
+///
+/// ### Example
+///
+/// ```cpp
+/// Element document = text(L"Hello world!");
+/// ```
+///
+/// ### Output
+///
+/// ```bash
+/// Hello world!
+/// ```
+Element text(std::wstring text) {  // NOLINT
+  return std::make_shared<Text>(to_string(text));
+}
+
+/// @brief Display a piece of unicode text vertically.
+/// @ingroup dom
+/// @see ftxui::to_wstring
+///
+/// ### Example
+///
+/// ```cpp
+/// Element document = vtext("Hello world!");
+/// ```
+///
+/// ### Output
+///
+/// ```bash
+/// H
+/// e
+/// l
+/// l
+/// o
+///
+/// w
+/// o
+/// r
+/// l
+/// d
+/// !
+/// ```
+Element vtext(std::string text) {
+  return std::make_shared<VText>(std::move(text));
+}
+
+/// @brief Display a piece unicode text vertically.
+/// @ingroup dom
+/// @see ftxui::to_wstring
+///
+/// ### Example
+///
+/// ```cpp
+/// Element document = vtext(L"Hello world!");
+/// ```
+///
+/// ### Output
+///
+/// ```bash
+/// H
+/// e
+/// l
+/// l
+/// o
+///
+/// w
+/// o
+/// r
+/// l
+/// d
+/// !
+/// ```
+Element vtext(std::wstring text) {  // NOLINT
+  return std::make_shared<VText>(to_string(text));
+}
+
+}  // namespace ftxui