Implement flexbox (#277)

This implement the flexbox elements, following the HTML one. Built from them, there is also the following elements: - `paragraph` - `paragraphAlignLeft` - `paragraphAlignRight` - `paragraphAlignCenter` - `paragraphAlignJustify` This is a breaking change.
2025-09-21 19:48:16 +08:00 · 2021-12-11 17:58:25 +01:00
parent f7c6bf91a7
commit 602392c43d
70 changed files with 2163 additions and 300 deletions
--- a/examples/dom/vflow.cpp
+++ b/examples/dom/vflow.cpp
@@ -0,0 +1,52 @@
+#include <stddef.h>                // for size_t
+#include <stdio.h>                 // for getchar
+#include <ftxui/dom/elements.hpp>  // for operator|, Element, size, text, hcenter, Fit, vflow, window, EQUAL, bold, border, dim, HEIGHT, WIDTH
+#include <ftxui/screen/screen.hpp>  // for Full, Screen
+#include <memory>                   // for allocator, shared_ptr
+#include <string>  // for operator+, to_string, char_traits, string
+
+#include "ftxui/dom/flexbox_config.hpp"  // for ftxui
+#include "ftxui/dom/node.hpp"            // for Render
+
+int main(int argc, const char* argv[]) {
+  using namespace ftxui;
+  auto make_box = [](size_t dimx, size_t dimy) {
+    std::string title = std::to_string(dimx) + "x" + std::to_string(dimy);
+    return window(text(title) | hcenter | bold,
+                  text("content") | hcenter | dim) |
+           size(WIDTH, EQUAL, dimx) | size(HEIGHT, EQUAL, dimy);
+  };
+
+  auto document = vflow({
+                      make_box(7, 7),
+                      make_box(7, 5),
+                      make_box(5, 7),
+                      make_box(10, 4),
+                      make_box(10, 4),
+                      make_box(10, 4),
+                      make_box(10, 4),
+                      make_box(11, 4),
+                      make_box(11, 4),
+                      make_box(11, 4),
+                      make_box(11, 4),
+                      make_box(12, 4),
+                      make_box(12, 5),
+                      make_box(12, 4),
+                      make_box(13, 4),
+                      make_box(13, 3),
+                      make_box(13, 3),
+                      make_box(10, 3),
+                  }) |
+                  border;
+
+  auto screen = Screen::Create(Dimension::Full(), Dimension::Fit(document));
+  Render(screen, document);
+  screen.Print();
+  getchar();
+
+  return 0;
+}
+
+// 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.