#include "LibGUI/Window.h" #include #include #include #include #include #include #include #include #include namespace LibGUI { Window::~Window() { munmap(m_framebuffer, m_width * m_height * 4); close(m_server_fd); } BAN::ErrorOr> Window::create(uint32_t width, uint32_t height, BAN::StringView title) { if (title.size() >= sizeof(WindowCreatePacket::title)) return BAN::Error::from_errno(EINVAL); int server_fd = socket(AF_UNIX, SOCK_SEQPACKET, 0); if (server_fd == -1) return BAN::Error::from_errno(errno); timespec start_time; clock_gettime(CLOCK_MONOTONIC, &start_time); for (;;) { sockaddr_un server_address; server_address.sun_family = AF_UNIX; strcpy(server_address.sun_path, s_window_server_socket.data()); if (connect(server_fd, (sockaddr*)&server_address, sizeof(server_address)) == 0) break; timespec current_time; clock_gettime(CLOCK_MONOTONIC, ¤t_time); time_t duration_s = (current_time.tv_sec - start_time.tv_sec) + (current_time.tv_nsec >= start_time.tv_nsec); if (duration_s > 10) { close(server_fd); return BAN::Error::from_errno(ETIMEDOUT); } timespec sleep_time; sleep_time.tv_sec = 0; sleep_time.tv_nsec = 1'000'000; nanosleep(&sleep_time, nullptr); } WindowCreatePacket packet; packet.width = width; packet.height = height; strncpy(packet.title, title.data(), title.size()); packet.title[title.size()] = '\0'; if (send(server_fd, &packet, sizeof(packet), 0) != sizeof(packet)) { close(server_fd); return BAN::Error::from_errno(errno); } WindowCreateResponse response; if (recv(server_fd, &response, sizeof(response), 0) != sizeof(response)) { close(server_fd); return BAN::Error::from_errno(errno); } void* framebuffer_addr = smo_map(response.framebuffer_smo_key); if (framebuffer_addr == nullptr) { close(server_fd); return BAN::Error::from_errno(errno); } return TRY(BAN::UniqPtr::create( server_fd, static_cast(framebuffer_addr), width, height )); } void Window::fill_rect(int32_t x, int32_t y, uint32_t width, uint32_t height, uint32_t color) { if (!clamp_to_framebuffer(x, y, width, height)) return; for (uint32_t y_off = 0; y_off < height; y_off++) for (uint32_t x_off = 0; x_off < width; x_off++) set_pixel(x + x_off, y + y_off, color); } void Window::draw_character(uint32_t codepoint, const LibFont::Font& font, int32_t tl_x, int32_t tl_y, uint32_t color) { if (tl_y + (int32_t)font.height() < 0 || tl_y >= (int32_t)height()) return; if (tl_x + (int32_t)font.width() < 0 || tl_x >= (int32_t)width()) return; auto glyph = font.glyph(codepoint); if (glyph == nullptr) return; for (int32_t off_y = 0; off_y < (int32_t)font.height(); off_y++) { if (tl_y + off_y < 0) continue; uint32_t abs_y = tl_y + off_y; if (abs_y >= height()) break; for (int32_t off_x = 0; off_x < (int32_t)font.width(); off_x++) { if (tl_x + off_x < 0) continue; uint32_t abs_x = tl_x + off_x; if (abs_x >= width()) break; const uint8_t bitmask = 1 << (font.width() - off_x - 1); if (glyph[off_y * font.pitch()] & bitmask) set_pixel(abs_x, abs_y, color); } } } void Window::draw_text(BAN::StringView text, const LibFont::Font& font, int32_t tl_x, int32_t tl_y, uint32_t color) { for (size_t i = 0; i < text.size(); i++) draw_character(text[i], font, tl_x + (int32_t)(i * font.width()), tl_y, color); } void Window::shift_vertical(int32_t amount) { uint32_t amount_abs = BAN::Math::abs(amount); if (amount_abs == 0 || amount_abs >= height()) return; uint32_t* dst = (amount > 0) ? m_framebuffer + width() * amount_abs : m_framebuffer; uint32_t* src = (amount < 0) ? m_framebuffer + width() * amount_abs : m_framebuffer; memmove(dst, src, width() * (height() - amount_abs) * 4); } bool Window::clamp_to_framebuffer(int32_t& signed_x, int32_t& signed_y, uint32_t& width, uint32_t& height) const { int32_t min_x = BAN::Math::max(signed_x, 0); int32_t min_y = BAN::Math::max(signed_y, 0); int32_t max_x = BAN::Math::min(this->width(), signed_x + (int32_t)width); int32_t max_y = BAN::Math::min(this->height(), signed_y + (int32_t)height); if (min_x >= max_x) return false; if (min_y >= max_y) return false; signed_x = min_x; signed_y = min_y; width = max_x - min_x; height = max_y - min_y; return true; } bool Window::invalidate(int32_t x, int32_t y, uint32_t width, uint32_t height) { if (!clamp_to_framebuffer(x, y, width, height)) return true; WindowInvalidatePacket packet; packet.x = x; packet.y = y; packet.width = width; packet.height = height; return send(m_server_fd, &packet, sizeof(packet), 0) == sizeof(packet); } void Window::poll_events() { for (;;) { fd_set fds; FD_ZERO(&fds); FD_SET(m_server_fd, &fds); timeval timeout { .tv_sec = 0, .tv_usec = 0 }; select(m_server_fd + 1, &fds, nullptr, nullptr, &timeout); if (!FD_ISSET(m_server_fd, &fds)) break; EventPacket packet; if (recv(m_server_fd, &packet, sizeof(packet), 0) <= 0) break; switch (packet.type) { case EventPacket::Type::DestroyWindow: exit(1); case EventPacket::Type::CloseWindow: if (m_close_window_event_callback) m_close_window_event_callback(); else exit(0); break; case EventPacket::Type::KeyEvent: if (m_key_event_callback) m_key_event_callback(packet.key_event); break; case EventPacket::Type::MouseButtonEvent: if (m_mouse_button_event_callback) m_mouse_button_event_callback(packet.mouse_button_event); break; case EventPacket::Type::MouseMoveEvent: if (m_mouse_move_event_callback) m_mouse_move_event_callback(packet.mouse_move_event); break; case EventPacket::Type::MouseScrollEvent: if (m_mouse_scroll_event_callback) m_mouse_scroll_event_callback(packet.mouse_scroll_event); break; } } } }