LOTS OF PROGRESS!

.gitignore

@@ -0,0 +1,2 @@
+/out
+/bin

desktoplib.code-workspace

@@ -4,5 +4,7 @@
 			"path": "."
 		}
 	],
-	"settings": {}
+	"settings": {
+		"terminal.integrated.defaultProfile.windows": "MSYS2 UCRT",
+	}
 }

out.txt

@@ -0,0 +1,2 @@
+g++ -std=c++20 -O2 -Wall -Werror -Wextra -Wshadow -Wnon-virtual-dtor -Wold-style-cast -Wcast-align -Wunused -Woverloaded-virtual -Wconversion -Wsign-conversion -Wnull-dereference -Wdouble-promotion -Wformat=2 -Wimplicit-fallthrough -Wsuggest-override -Wextra-semi -Wduplicated-cond -Wduplicated-branches -Wlogical-op -Wuseless-cast -I./src/ -c -o bin/desktoplib/terminal/Terminal.o src/desktoplib/terminal/Terminal.cpp
+g++ -std=c++20 -static-libstdc++ -static-libgcc -Wl,--fatal-warnings -Wl,--warn-common -o out/out.exe bin/desktoplib/main.o bin/desktoplib/os/unix.o bin/desktoplib/os/windows.o bin/desktoplib/terminal/Terminal.o 

src/desktoplib/main.cpp

@@ -0,0 +1,103 @@
+#include <desktoplib/terminal/Terminal.hpp>
+#include <iostream>
+#include <string>
+#include <thread>
+#include <chrono>
+
+int main() {
+    using namespace ckitty::terminal;
+    Terminal term;
+
+    // 1. Setup the screen
+    term.altbuff(true)           // Use alternative buffer (clean exit)
+        .cursor(false)           // Hide cursor for cleaner UI
+        .cls()                   // Clear screen
+        .fill("\033[48;2;20;20;20m"); // Fill background with dark grey (RGB)
+
+    // 2. Draw a Header using subprint and center
+    term << pos{1, 1} << backg::BLUE << color::WHITE << style::BOLD;
+    term.center(term.getSize().x, " TERMINAL LIBRARY TEST SUITE ");
+    term << style::RESET;
+
+    // 3. Demonstrate Cartesian Positioning and Colors
+    pos center = { term.getSize().x / 2, term.getSize().y / 2 };
+
+    term << pos{center.x - 10, 5} << color::GREEN << "Green Text at (x-10, 5)"
+         << pos{center.x - 10, 6} << color::B_RED << style::ITALIC << "Bright Red Italic"
+         << style::RESET;
+
+    // 4. Test RGB and HSL colors
+    term << pos{2, 10} << "RGB Test: ";
+    for (int i = 0; i < 5; ++i) {
+        term << color::rgb(50 * i, 255 - (50 * i), 150) << "■ ";
+    }
+
+    term << pos{2, 11} << "HSL Test: ";
+    for (float h = 0.0f; h < 1.0f; h += 0.2f) {
+        term << color::hsl(h, 0.8f, 0.5f) << "■ ";
+    }
+    term << style::RESET;
+
+    // 5. Test subprint_center
+    std::string long_msg = "This is a very long string that we will slice and center.";
+    term << pos{1, 15} << color::YELLOW;
+    // Centers only the word "long string" in a width of 40
+    term.subprint_center(10, 21, long_msg); 
+    term << style::RESET;
+
+    // 6. Interaction Loop
+    term << pos{2, term.getSize().y - 2} << style::FAINT 
+         << "Press 'q' to quit, or any arrow key to move the cursor..." << style::RESET;
+
+    pos player = center;
+    bool running = true;
+
+    while (running) {
+        // Draw "Player"
+        term << player << color::CYAN << "X";
+        term.flush();
+
+        int k = term.getKey(); // Blocking wait
+
+        // Erase old "Player"
+        term << player << " ";
+
+        if (k == 'q' || k == key::ESC) {
+            running = false;
+        } else if (k == key::UP) {
+            player.y--;
+            term << color::GREEN << pos(3, 2) << "U";
+        } else if (k == key::DOWN) {
+            player.y++;
+            term << color::GREEN << pos(3, 2) << "D";
+        } else if (k == key::LEFT) {
+            player.x--;
+            term << color::GREEN << pos(3, 2) << "L";
+        } else if (k == key::RIGHT) {
+            player.x++;
+            term << color::GREEN << pos(3, 2) << "R";
+        }
+        term << color::RED;
+        term << pos(3, 3) << player.x;
+        term << pos(3, 4) << player.y;
+
+        // Clamp player to screen bounds
+        pos sz = term.getSize();
+        term << color::BLUE;
+        term << pos(3, 5) << sz.x;
+        term << pos(3, 6) << sz.y;
+        if (player.x < 1) player.x = 1;
+        if (player.y < 2) player.y = 2; // Keep below header
+        if (player.x > sz.x) player.x = sz.x;
+        if (player.y > sz.y) player.y = sz.y;
+    }
+
+    // 7. Cleanup
+    term.altbuff(false) // Return to normal buffer
+        .cursor(true)   // Show cursor again
+        .cls();
+
+    std::cout << "Test completed successfully.\n";
+
+    return 0;
+}

src/desktoplib/os/common.hpp

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <optional>
+#include <string>
+
+namespace ckitty {
+
+    namespace terminal {
+
+        namespace os {
+
+            int getKey(bool blocking);
+
+            std::optional<std::string> getChar(bool blocking);
+
+            std::pair<int, int> getSize();
+
+            void setRawMode(bool enable);
+
+        }
+
+    }
+
+}

src/desktoplib/os/unix.cpp

@@ -0,0 +1,73 @@
+#if defined(__unix__) || defined(__APPLE__) || defined(__linux__)
+
+#include "common.hpp"
+#include <termios.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+
+namespace ckitty {
+    namespace terminal {
+        namespace os {
+
+            int getKey(bool blocking) {
+                if (!blocking) {
+                    // Set non-blocking read
+                    int oldf = fcntl(STDIN_FILENO, F_GETFL, 0);
+                    fcntl(STDIN_FILENO, F_SETFL, oldf | O_NONBLOCK);
+                    unsigned char ch;
+                    int n = read(STDIN_FILENO, &ch, 1);
+                    fcntl(STDIN_FILENO, F_SETFL, oldf);
+                    return (n > 0) ? ch : -1;
+                }
+                
+                unsigned char buf[3];
+                int n = read(STDIN_FILENO, &buf, 3);
+
+                if (n == 1) {
+                    if (buf[0] == 127) return key::BACKSPACE;
+                    return buf[0]; // Standard ASCII
+                }
+
+                // Handle ANSI Escape Sequences (Arrows)
+                if (n == 3 && buf[0] == 0x1B && buf[1] == '[') {
+                    switch (buf[2]) {
+                    case 'A': return key::UP;
+                    case 'B': return key::DOWN;
+                    case 'C': return key::RIGHT;
+                    case 'D': return key::LEFT;
+                    }
+                }
+
+                return key::UNKNOWN;
+            }
+
+            std::optional<std::string> getChar(bool blocking) {
+                int ch = getKey(blocking);
+                if (ch == -1) return std::nullopt;
+                return std::string(1, static_cast<char>(ch));
+            }
+
+            std::pair<int, int> getSize() {
+                struct winsize w;
+                ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
+                return { w.ws_col, w.ws_row };
+            }
+
+            void setRawMode(bool enable) {
+                static struct termios oldt, newt;
+                if (enable) {
+                    tcgetattr(STDIN_FILENO, &oldt);
+                    newt = oldt;
+                    newt.c_lflag &= ~(ICANON | ECHO); // Disable buffering and local echo
+                    tcsetattr(STDIN_FILENO, TCSANOW, &newt);
+                } else {
+                    tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
+                }
+            }
+
+        }
+    }
+}
+
+#endif

src/desktoplib/os/windows.cpp

@@ -0,0 +1,70 @@
+#ifdef _WIN32
+
+#include "common.hpp"
+#include <windows.h>
+#include <conio.h>
+
+#include <desktoplib/terminal/Terminal.hpp>
+
+namespace ckitty {
+    namespace terminal {
+        namespace os {
+
+            int getKey(bool blocking) {
+                // Handle non-blocking check for the console
+                if (!blocking && !_kbhit()) {
+                    return -1;
+                }
+
+                // _getch() blocks by default
+                int ch = _getch();
+
+                // Check for "Extended" keys (Prefixes 0 or 224)
+                if (ch == 0 || ch == 224) {
+                    int extended = _getch(); // Get the second byte
+
+                    switch (extended) {
+                    case 72: return key::UP;
+                    case 80: return key::DOWN;
+                    case 75: return key::LEFT;
+                    case 77: return key::RIGHT;
+                    default: return key::UNKNOWN;
+                    }
+                }
+
+                // Handle standard keys and normalize them to your 'key' struct
+                switch (ch) {
+                case 13:   return key::ENTER;     // Windows uses CR (\r) for Enter
+                case 27:   return key::ESC;       // Escape
+                case 8:    return key::BACKSPACE; // Backspace
+                default:   return ch;             // Standard ASCII (a, b, 1, 2, etc.)
+                }
+            }
+
+            std::optional<std::string> getChar(bool blocking) {
+                int ch = getKey(blocking);
+                if (ch == -1) return std::nullopt;
+                return std::string(1, static_cast<char>(ch));
+            }
+
+            std::pair<int, int> getSize() {
+                CONSOLE_SCREEN_BUFFER_INFO csbi;
+                GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
+                return { csbi.srWindow.Right - csbi.srWindow.Left + 1, csbi.srWindow.Bottom - csbi.srWindow.Top + 1 };
+            }
+
+            void setRawMode(bool enable) {
+                // Windows CMD/Terminal usually handles _getch automatically,
+                // but for Virtual Terminal sequences:
+                HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
+                DWORD dwMode = 0;
+                GetConsoleMode(hOut, &dwMode);
+                if (enable) dwMode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+                SetConsoleMode(hOut, dwMode);
+            }
+
+        }
+    }
+}
+
+#endif

src/desktoplib/terminal/Terminal.cpp

@@ -0,0 +1,346 @@
+#include "Terminal.hpp"
+
+#include <iostream>
+#include <algorithm>
+
+#include <desktoplib/os/common.hpp>
+
+namespace ckitty {
+
+    namespace terminal {
+
+        static const auto CSI = "\x1B[";
+
+        // ------ //
+
+        pos::pos(int _x, int _y)
+            : x(_x), y(_y) {
+        }
+
+        move::move(int _x, int _y)
+            : x(_x), y(_y) {
+        }
+
+        // ------ //
+
+        // Private Constructor
+        style::style(const std::string& c) : code(c) {}
+
+        // Static Constants (Standard ANSI SGR codes)
+        const style style::RESET("\033[0m");
+        const style style::BOLD("\033[1m");
+        const style style::FAINT("\033[2m"); // Often called "dim"
+        const style style::ITALIC("\033[3m");
+        const style style::STRIKE("\033[9m");
+
+        style::operator std::string_view() const {
+            return std::string_view(code);
+        }
+
+        // ------ //
+
+        // Constructor
+        backg::backg(const std::string& c) : code(c) {}
+
+        // Standard Background Colors (40-47)
+        const backg backg::BLACK("\033[40m");
+        const backg backg::RED("\033[41m");
+        const backg backg::GREEN("\033[42m");
+        const backg backg::YELLOW("\033[43m");
+        const backg backg::BLUE("\033[44m");
+        const backg backg::MAGENTA("\033[45m");
+        const backg backg::CYAN("\033[46m");
+        const backg backg::WHITE("\033[47m");
+
+        // Bright Background Variants (100-107)
+        const backg backg::B_BLACK("\033[100m");
+        const backg backg::B_RED("\033[101m");
+        const backg backg::B_GREEN("\033[102m");
+        const backg backg::B_YELLOW("\033[103m");
+        const backg backg::B_BLUE("\033[104m");
+        const backg backg::B_MAGENTA("\033[105m");
+        const backg backg::B_CYAN("\033[106m");
+        const backg backg::B_WHITE("\033[107m");
+
+        // RGB Background (TrueColor: ESC[48;2;r;g;bm)
+        backg backg::rgb(int r, int g, int b) {
+            return backg("\033[48;2;" + std::to_string(r) + ";" + std::to_string(g) + ";" + std::to_string(b) + "m");
+        }
+
+        // HSL Background
+        backg backg::hsl(float h, float s, float l) {
+            auto hueToRgb = [](float p, float q, float t) {
+                if (t < 0.0f) t += 1.0f;
+                if (t > 1.0f) t -= 1.0f;
+                if (t < 1.0f / 6.0f) return p + (q - p) * 6.0f * t;
+                if (t < 1.0f / 2.0f) return q;
+                if (t < 2.0f / 3.0f) return p + (q - p) * (2.0f / 3.0f - t) * 6.0f;
+                return p;
+                };
+
+            float r, g, b;
+            if (s == 0.0f) {
+                r = g = b = l;
+            } else {
+                float q = l < 0.5f ? l * (1.0f + s) : l + s - l * s;
+                float p = 2.0f * l - q;
+                r = hueToRgb(p, q, h + 1.0f / 3.0f);
+                g = hueToRgb(p, q, h);
+                b = hueToRgb(p, q, h - 1.0f / 3.0f);
+            }
+
+            return rgb(static_cast<int>(r * 255), static_cast<int>(g * 255), static_cast<int>(b * 255));
+        }
+
+        backg::operator std::string_view() const {
+            return std::string_view(code);
+        }
+
+        // ------ //
+
+        // Constructor
+        color::color(const std::string& c) : code(c) {}
+
+        // Standard Colors (Foreground)
+        const color color::BLACK("\033[30m");
+        const color color::RED("\033[31m");
+        const color color::GREEN("\033[32m");
+        const color color::YELLOW("\033[33m");
+        const color color::BLUE("\033[34m");
+        const color color::MAGENTA("\033[35m");
+        const color color::CYAN("\033[36m");
+        const color color::WHITE("\033[37m");
+
+        // Bright Variants
+        const color color::B_BLACK("\033[90m");
+        const color color::B_RED("\033[91m");
+        const color color::B_GREEN("\033[92m");
+        const color color::B_YELLOW("\033[93m");
+        const color color::B_BLUE("\033[94m");
+        const color color::B_MAGENTA("\033[95m");
+        const color color::B_CYAN("\033[96m");
+        const color color::B_WHITE("\033[97m");
+
+        // RGB Implementation (TrueColor: ESC[38;2;r;g;bm)
+        color color::rgb(int r, int g, int b) {
+            return color("\033[38;2;" + std::to_string(r) + ";" +
+                std::to_string(g) + ";" +
+                std::to_string(b) + "m");
+        }
+
+        // HSL Implementation
+        color color::hsl(float h, float s, float l) {
+            // Helper to convert HSL to RGB
+            auto hueToRgb = [](float p, float q, float t) {
+                if (t < 0.0f) t += 1.0f;
+                if (t > 1.0f) t -= 1.0f;
+                if (t < 1.0f / 6.0f) return p + (q - p) * 6.0f * t;
+                if (t < 1.0f / 2.0f) return q;
+                if (t < 2.0f / 3.0f) return p + (q - p) * (2.0f / 3.0f - t) * 6.0f;
+                return p;
+                };
+
+            float r, g, b;
+            if (s == 0.0f) {
+                r = g = b = l; // Achromatic
+            } else {
+                float q = l < 0.5f ? l * (1.0f + s) : l + s - l * s;
+                float p = 2.0f * l - q;
+                r = hueToRgb(p, q, h + 1.0f / 3.0f);
+                g = hueToRgb(p, q, h);
+                b = hueToRgb(p, q, h - 1.0f / 3.0f);
+            }
+
+            return rgb(static_cast<int>(r * 255), static_cast<int>(g * 255), static_cast<int>(b * 255));
+        }
+
+        color::operator std::string_view() const {
+            return std::string_view(code);
+        }
+
+        // ------ //
+
+        Terminal::Terminal()
+            : _os(&std::cout), _is(&std::cin), _own(false) {
+        }
+
+        Terminal::~Terminal() {
+            if (_own) {
+                delete _os;
+                delete _is;
+            }
+        }
+
+        // ------ //
+
+        Terminal& Terminal::fill(const std::string_view color) {
+            // 1. Set background color
+            // 2. Clear screen (2J)
+            // 3. Move cursor to home (H)
+            (*_os) << color << CSI << "2J" << CSI << "H" << std::flush;
+            return *this;
+        }
+
+        Terminal& Terminal::cls() {
+            // Clear entire screen and move cursor to 1,1
+            (*_os) << CSI << "2J" << CSI << "H" << std::flush;
+            return *this;
+        }
+
+        Terminal& Terminal::altbuff(bool enable) {
+            // ?1049h enables alternative buffer, ?1049l disables it
+            (*_os) << CSI << (enable ? "?1049h" : "?1049l") << std::flush;
+            return *this;
+        }
+
+        Terminal& Terminal::createScrollRange(int start, int end) {
+            // DECSTBM: Set Top and Bottom Margins
+            (*_os) << CSI << start << ";" << end << "r" << std::flush;
+            return *this;
+        }
+
+        Terminal& Terminal::undoScrollRange() {
+            // Reset margins to full screen
+            (*_os) << CSI << "r" << std::flush;
+            return *this;
+        }
+
+        Terminal& Terminal::clearRow(int row) {
+            // Move to row, column 1, then clear line (2K)
+            (*_os) << CSI << row << ";1H" << CSI << "2K" << std::flush;
+            return *this;
+        }
+
+        Terminal& Terminal::clearRows(int start, int end) {
+            for (int i = start; i <= end; ++i) {
+                clearRow(i);
+            }
+            return *this;
+        }
+
+        Terminal& Terminal::cursor(bool show) {
+            // ?25h shows cursor, ?25l hides it
+            (*_os) << CSI << (show ? "?25h" : "?25l") << std::flush;
+            return *this;
+        }
+
+        // ------ //
+
+        Terminal& Terminal::wait() {
+            this->flush();
+            this->sink(); // Clear any previous keystrokes so we wait for a NEW one
+            this->getKey(); // Block until a key is pressed
+            return *this;
+        }
+
+        Terminal& Terminal::flush() {
+            _os->flush();
+            return *this;
+        }
+
+        // Updated sink() using OS-specific logic
+        Terminal& Terminal::sink() {
+            while (os::getKey(false) != -1); // Drain the buffer
+            return *this;
+        }
+
+        // ------ //
+
+        int Terminal::getKey() { return os::getKey(true); }
+
+        int Terminal::getKeyNb() { return os::getKey(false); }
+
+        std::optional<std::string> Terminal::getChar() { return os::getChar(true); }
+
+        std::optional<std::string> Terminal::getCharNb() { return os::getChar(false); }
+
+        pos Terminal::getSize() {
+            auto [x, y] = os::getSize();
+            return { x, y };
+        }
+
+        // ------ //
+
+        Terminal& Terminal::operator<<(const std::string_view& msg) {
+            (*_os) << msg;
+            return *this;
+        }
+
+        Terminal& Terminal::operator<<(const pos p) {
+            // ANSI uses 1-based indexing: \033[row;colH
+            (*_os) << CSI << p.y << ";" << p.x << "H";
+            return *this;
+        }
+
+        Terminal& Terminal::operator<<(const move m) {
+            if (m.y < 0) (*_os) << CSI << -m.y << "A"; // Up
+            else if (m.y > 0) (*_os) << CSI << m.y << "B"; // Down
+            if (m.x > 0) (*_os) << CSI << m.x << "C"; // Forward/Right
+            else if (m.x < 0) (*_os) << CSI << -m.x << "D"; // Back/Left
+            return *this;
+        }
+
+        Terminal& Terminal::operator<<(const style c) {
+            (*_os) << c.code;
+            return *this;
+        }
+
+        Terminal& Terminal::operator<<(const color c) {
+            (*_os) << c.code;
+            return *this;
+        }
+
+        Terminal& Terminal::operator<<(const backg c) {
+            (*_os) << c.code;
+            return *this;
+        }
+
+        // ------ //
+
+        Terminal& Terminal::center(int width, const std::string_view msg) {
+            if (msg.length() >= static_cast<std::size_t>(width)) {
+                (*_os) << msg;
+            } else {
+                std::size_t total_padding = static_cast<std::size_t>(width) - msg.length();
+                std::size_t left_padding = total_padding / 2;
+                std::size_t right_padding = total_padding - left_padding;
+
+                // Fill padding using a string constructor or a loop
+                // Standard strings are easiest for repeated characters
+                (*_os) << std::string(left_padding, ' ')
+                    << msg
+                    << std::string(right_padding, ' ');
+            }
+            return *this;
+        }
+
+        Terminal& Terminal::subprint(int i0, int i1, const std::string_view msg) {
+            // Clamp indices to valid string range
+            std::size_t len = msg.length();
+            std::size_t start = std::clamp(std::size_t(i0), std::size_t(0), len);
+            std::size_t end = std::clamp(std::size_t(i1), start, len);
+
+            if (start < end) {
+                (*_os) << msg.substr(start, end - start);
+            }
+            return *this;
+        }
+
+        Terminal& Terminal::subprint_center(int i0, int i1, const std::string_view msg) {
+            // 1. Calculate the slice from the original message
+            std::size_t len = msg.length();
+            std::size_t start = std::clamp(std::size_t(i0), std::size_t(0), len);
+            std::size_t end = std::clamp(std::size_t(i1), start, len);
+
+            std::string_view slice = msg.substr(start, end - start);
+
+            // 2. The desired display width is defined by the bounds i0 and i1
+            int target_width = i1 - i0;
+
+            // 3. Hand off to the existing center logic
+            return center(target_width, slice);
+        }
+
+    }
+
+}

src/desktoplib/terminal/Terminal.hpp

@@ -4,6 +4,7 @@
 #include <string>
 #include <string_view>
 #include <sstream>
+#include <optional>
 
 namespace ckitty {
 
@@ -21,7 +22,7 @@ namespace ckitty {
         struct pos {
         public:
             int x, y;
-            pos(int x, int y);
+            pos(int _x, int _y);
         };
 
         /**
@@ -31,7 +32,7 @@ namespace ckitty {
         struct move {
         public:
             int x, y;
-            move(int x, int y);
+            move(int _x, int _y);
         };
 
         /**
@@ -53,8 +54,11 @@ namespace ckitty {
 
         private:
 
-            std::string_view code;
-            backg(const std::string_view code);
+            std::string code;
+            backg(const std::string& code);
+
+        public:
+            operator std::string_view() const;
 
         public:
             static backg rgb(int r, int g, int b);
@@ -79,8 +83,12 @@ namespace ckitty {
             static const color WHITE;   static const color B_WHITE;
 
         private:
-            std::string_view code;
-            color(const std::string_view code);
+            std::string code;
+            color(const std::string& code);
+
+        public:
+            operator std::string_view() const;
+
         public:
             static color rgb(int r, int g, int b);
             static color hsl(float hue, float sat, float lum);
@@ -99,8 +107,10 @@ namespace ckitty {
             static const style FAINT;
             static const style STRIKE;
         private:
-            std::string_view code;
-            style(const std::string_view code);
+            std::string code;
+            style(const std::string& code);
+        public:
+            operator std::string_view() const;
         };
 
         /**
@@ -109,15 +119,17 @@ namespace ckitty {
         struct key {
             friend class Terminal;
         public:
-            // Key Definitions (ASCII OK) //
-            static constexpr const char UP = 0x80;
-            static constexpr const char DOWN = 0x81;
-            static constexpr const char LEFT = 0x82;
-            static constexpr const char RIGHT = 0x83;
-            static constexpr const char ENTER = 0x84;
-            static constexpr const char ESC = 0x85;
-            static constexpr const char BACKSPACE = 0x86;
-            static constexpr const char UNKNOWN = 0xFF;
+            static constexpr int UP = 0x101;
+            static constexpr int DOWN = 0x102;
+            static constexpr int LEFT = 0x103;
+            static constexpr int RIGHT = 0x104;
+
+            static constexpr int ENTER = 0x0D;
+            static constexpr int ESC = 0x1B;
+            static constexpr int BACKSPACE = 0x08;
+            static constexpr int TAB = 0x09;
+
+            static constexpr int UNKNOWN = -1;
         private:
         };
 
@@ -147,7 +159,7 @@ namespace ckitty {
 
             /**
              * Fills the screen with a specific background color.
-             * @param color The background color constant (e.g., Terminal::BG_BLUE)
+             * @param color The background color constant (e.g., BG_BLUE)
              */
             Terminal& fill(const std::string_view color);
 
@@ -175,19 +187,6 @@ namespace ckitty {
              */
             Terminal& clearRows(int start, int end);
 
-            /**
-             * Clears a specific column.
-             * @param col The 1-based index of the column to clear.
-             */
-            Terminal& clearColumn(int col);
-
-            /**
-             * Clears a range of columns (inclusive).
-             * @param start The first column.
-             * @param end The last column.
-             */
-            Terminal& clearColumns(int start, int end);
-
             /**
              * Shows / Hides the cursor.
              */
@@ -219,6 +218,9 @@ namespace ckitty {
 
             std::optional<std::string> getChar();
 
+            /**
+             * Get char non-blocking
+             */
             std::optional<std::string> getCharNb();
 
             pos getSize();
@@ -237,14 +239,33 @@ namespace ckitty {
 
             Terminal& operator<<(const move c);
 
+            Terminal& operator<<(const style c);
+
+            Terminal& operator<<(const color c);
+
+            Terminal& operator<<(const backg c);
+
         public:
 
             /**
-             * Represents an operation which will print up
-             * to a specific amount of characters.
+             * Prints a centered version of the final text,
+             * adding padding to center it as best as it can.
              */
-            template <typename T>
-            Terminal& subprint(int i0, int i1, const T& msg) {}
+            Terminal& center(int width, const std::string_view msg);
+
+            /**
+             * Prints a slice of the message from index i0 up to (but not including) i1.
+             * We convert T to a string first to handle non-string types (like int or float).
+             */
+            Terminal& subprint(int i0, int i1, const std::string_view msg);
+
+            /**
+             * Combines centering logic with sub-printing.
+             * It takes a slice of the message, then pads it to fit the width (i1 - i0).
+             */
+            Terminal& subprint_center(int i0, int i1, const std::string_view msg);
+
+        public:
 
             /**
              * Prints a centered version of the final text,
@@ -258,30 +279,68 @@ namespace ckitty {
                 std::string s = oss.str();
 
                 // then print
-                if (s.length() >= isize(width)) {
-                    std::cout << s;
-                }
-                else {
-                    isize total_padding = isize(width) - s.length();
-                    isize left_padding = total_padding / 2;
-                    std::cout << std::string(left_padding, ' ');
-                    std::cout << s;
-                    std::cout << std::string(total_padding - left_padding, ' ');
+                if (s.length() >= std::size_t(width)) {
+                    (*_os) << s;
+                } else {
+                    std::size_t total_padding = std::size_t(width) - s.length();
+                    std::size_t left_padding = total_padding / 2;
+                    (*_os) << std::string(left_padding, ' ');
+                    (*_os) << s;
+                    (*_os) << std::string(total_padding - left_padding, ' ');
                 }
                 return *this;
             }
 
             /**
-             * Centered version of the subprint version.
+             * Prints a slice of the message from index i0 up to (but not including) i1.
+             * We convert T to a string first to handle non-string types (like int or float).
              */
             template <typename T>
-            Terminal& subprint_center(int i0, int i1, const T& msg) {}
+            Terminal& subprint(int i0, int i1, const T& msg) {
+                std::ostringstream oss;
+                oss << msg;
+                std::string s = oss.str();
+
+                // Convert to string_view for easy slicing and safety
+                std::string_view sv(s);
+
+                // Bounds checking to prevent crashes
+                std::size_t start = std::max(std::size_t(0), std::size_t(i0));
+                std::size_t end = std::min(std::size_t(sv.length()), std::size_t(i1));
+
+                if (start < end) {
+                    (*_os) << sv.substr(start, end - start);
+                }
+
+                return *this;
+            }
+
+            /**
+             * Combines centering logic with sub-printing.
+             * It takes a slice of the message, then pads it to fit the width (i1 - i0).
+             */
+            template <typename T>
+            Terminal& subprint_center(int i0, int i1, const T& msg) {
+                std::ostringstream oss;
+                oss << msg;
+                std::string s = oss.str();
+                std::string_view sv(s);
+
+                // Get the actual slice we want to center
+                std::size_t start = std::max(std::size_t(0), std::size_t(i0));
+                std::size_t end = std::min(std::size_t(sv.length()), std::size_t(i1));
+                std::string_view slice = (start < end) ? sv.substr(start, end - start) : "";
+
+                // The target width for centering is the range defined by i0 and i1
+                std::size_t target_width = std::size_t(i1 - i0);
+                return center(int(target_width), slice);
+            }
 
         private:
 
             template <typename T>
             Terminal& read(T& var) {
-                std::cin >> var;
+                (*_is) >> var;
                 return *this;
             }