add pixelate func and example

examples/CMakeLists.txt

@@ -14,6 +14,10 @@ endfunction(example)
 add_subdirectory(component)
 add_subdirectory(dom)
 
+# Add the pixelate example
+add_executable(pixelate ${CMAKE_CURRENT_SOURCE_DIR}/dom/pixelate.cpp)
+target_link_libraries(pixelate PRIVATE dom)
+
 if (EMSCRIPTEN)
   string(APPEND CMAKE_EXE_LINKER_FLAGS " -s ALLOW_MEMORY_GROWTH=1")
   target_link_options(component PUBLIC "SHELL: -s ALLOW_MEMORY_GROWTH=1")

examples/dom/pixelate.cpp

@@ -0,0 +1,37 @@
+#include "ftxui/dom/canvas.hpp"
+#include <stdio.h>                 // for getchar
+#include <cmath>                   // for cos
+#include <ftxui/dom/elements.hpp>  // for Fit, canvas, operator|, border, Element
+#include <ftxui/screen/screen.hpp> // for Pixel, Screen
+#include <vector>                  // for vector, allocator
+
+#include "ftxui/dom/canvas.hpp"    // for Canvas
+#include "ftxui/dom/node.hpp"      // for Render
+#include "ftxui/screen/color.hpp"  // for Color, Color::Red, Color::Blue, Color::Green, ftxui
+
+using namespace ftxui;
+using namespace cv;
+
+int main(int argc, char* argv[]) {
+  if (argc != 2 && argc != 4) {
+    std::cerr << "Usage: " << argv[0] << " <image_path> [width] [height]" << std::endl;
+    return 1;
+  }
+
+  std::string image_path = argv[1];
+  int width, height;
+
+  if (argc == 4) {
+    width = std::stoi(argv[2]);
+    height = std::stoi(argv[3]);
+  } else {
+    // default-values
+    width = 100;
+    height = 50;
+  }
+
+  // call static method
+  Canvas::DrawImageOnTerminal(image_path, width, height);
+
+  return 0;
+}