meta: Renamed folder containing source

1 files changed, 399 insertions, 0 deletions

diff --git a/modules/window/old.dummy b/modules/window/old.dummy
new file mode 100644
index 0000000..c762945
--- /dev/null
+++ b/modules/window/old.dummy
@@ -0,0 +1,399 @@
+#include <X11/Xlib-xcb.h>
+#include <X11/Xlib.h>
+#include <xcb/xcb.h>
+#include <forstio/io/io.h>
+
+#include <map>
+#include <vector>
+
+#include "device.h"
+
+namespace saw {
+class xcb_window;
+class xcb_device final : public device {
+public:
+	::Display *display;
+	int screen;
+
+	xcb_connection_t *xcb_connection;
+	xcb_screen_t *xcb_screen;
+
+	own<input_stream> async_notifier;
+	conveyor_sink async_conveyor;
+
+	std::map<xcb_window_t, xcb_window *> windows;
+
+	std::vector<xcb_generic_event_t *> pending_events;
+
+public:
+	xcb_device(::Display *display, int screen, xcb_connection_t *xcb_connection,
+			   xcb_screen_t *xcb_screen, own<input_stream> &&an);
+	~xcb_device();
+
+	void window_destroyed(xcb_window_t window_id);
+	void handle_events();
+
+	own<xcb_window> create_xcb_window(const video_mode &mode,
+									  std::string_view title_view,
+									  int visual_id);
+	own<window> create_window(const video_mode &video_mode,
+							  std::string_view title_view) override;
+
+	void flush() override;
+};
+
+own<xcb_device> create_xcb_device(io_provider &provider);
+
+class xcb_window final : public window {
+public:
+	xcb_device &device_;
+
+	xcb_window_t xcb_window_;
+	xcb_colormap_t xcb_colormap_;
+
+	video_mode video_mode_;
+	std::string window_title_;
+
+	own<conveyor_feeder<window::variant_event>> event_feeder = nullptr;
+
+public:
+	xcb_window(xcb_device &dev, xcb_window_t xcb_win,
+			   xcb_colormap_t xcb_colormap_, const video_mode &video_mode_,
+			   std::string_view title_view_);
+	~xcb_window();
+
+	void show() override;
+	void hide() override;
+
+	const video_mode &get_video_mode() const override;
+	const std::string_view title() const override;
+
+	void resize(size_t width, size_t height) override;
+
+	conveyor<window::variant_event> on_event() override;
+
+	void resize_event(size_t x, size_t y, size_t width, size_t height);
+	void mouse_event(int16_t x, int16_t y, uint16_t state, bool pressed);
+	void mouse_move_event(int16_t x, int16_t y);
+	void keyboard_event(int16_t x, int16_t y, uint32_t keycode, bool pressed,
+					   bool repeat);
+};
+
+xcb_device::xcb_device(::Display *display, int screen,
+					   xcb_connection_t *xcb_connection,
+					   xcb_screen_t *xcb_screen, own<input_stream> &&an)
+	: display{display}, screen{screen}, xcb_connection{xcb_connection},
+	  xcb_screen{xcb_screen}, async_notifier{std::move(an)},
+	  async_conveyor{async_notifier->read_ready()
+						 .then([this]() { handle_events(); })
+						 .sink()} {}
+
+xcb_device::~xcb_device() {
+	if (display) {
+		xcb_flush(xcb_connection);
+		::XCloseDisplay(display);
+	}
+}
+
+void xcb_device::window_destroyed(xcb_window_t window_id) {
+	windows.erase(window_id);
+}
+
+void xcb_device::handle_events() {
+	while (xcb_generic_event_t *event = xcb_poll_for_event(xcb_connection)) {
+		pending_events.push_back(event);
+	}
+	for (size_t i = 0; i < pending_events.size(); ++i) {
+		xcb_generic_event_t *event = pending_events.at(i);
+		switch (event->response_type & ~0x80) {
+		case XCB_MOTION_NOTIFY: {
+			xcb_motion_notify_event_t *motion =
+				reinterpret_cast<xcb_motion_notify_event_t *>(event);
+			auto find = windows.find(motion->event);
+			if (find != windows.end()) {
+				assert(find->second);
+				find->second->mouse_move_event(motion->event_x,
+											   motion->event_y);
+			}
+		} break;
+		case XCB_EXPOSE: {
+			xcb_expose_event_t *expose =
+				reinterpret_cast<xcb_expose_event_t *>(event);
+			auto find = windows.find(expose->window);
+			if (find != windows.end()) {
+				assert(find->second);
+				find->second->resize_event(static_cast<size_t>(expose->x),
+										  static_cast<size_t>(expose->y),
+										  static_cast<size_t>(expose->width),
+										  static_cast<size_t>(expose->height));
+			}
+		} break;
+		case XCB_BUTTON_RELEASE: {
+			xcb_button_release_event_t *button =
+				reinterpret_cast<xcb_button_release_event_t *>(event);
+			auto find = windows.find(button->event);
+			if (find != windows.end()) {
+				assert(find->second);
+				find->second->mouse_event(button->event_x, button->event_y,
+										 button->detail, false);
+			}
+		} break;
+		case XCB_BUTTON_PRESS: {
+			xcb_button_press_event_t *button =
+				reinterpret_cast<xcb_button_press_event_t *>(event);
+			auto find = windows.find(button->event);
+			if (find != windows.end()) {
+				assert(find->second);
+				find->second->mouse_event(button->event_x, button->event_y,
+										 button->detail, true);
+			}
+		} break;
+		case XCB_KEY_RELEASE: {
+			xcb_key_release_event_t *key =
+				reinterpret_cast<xcb_key_release_event_t *>(event);
+
+			bool repeat = false;
+			/*
+			 * Peek into future events
+			 */
+			for (size_t j = i + 1; j < pending_events.size(); ++j) {
+				xcb_generic_event_t *f_ev = pending_events.at(j);
+
+				if ((f_ev->response_type & ~0x80) == XCB_KEY_PRESS) {
+					xcb_key_press_event_t *f_key =
+						reinterpret_cast<xcb_key_press_event_t *>(f_ev);
+
+					if (key->detail == f_key->detail &&
+						key->event == f_key->event) {
+						auto iterator = pending_events.begin() + j;
+						assert(iterator != pending_events.end());
+						free(*iterator);
+						pending_events.erase(iterator);
+						repeat = true;
+						break;
+					}
+				}
+			}
+
+			auto find = windows.find(key->event);
+			if (find != windows.end()) {
+				assert(find->second);
+				find->second->keyboard_event(key->event_x, key->event_y,
+											key->detail, repeat, repeat);
+			}
+		} break;
+		case XCB_KEY_PRESS: {
+			xcb_key_press_event_t *key =
+				reinterpret_cast<xcb_key_press_event_t *>(event);
+			auto find = windows.find(key->event);
+			if (find != windows.end()) {
+				assert(find->second);
+				find->second->keyboard_event(key->event_x, key->event_y,
+											key->detail, true, false);
+			}
+		} break;
+		default:
+			break;
+		}
+	}
+
+	for (xcb_generic_event_t *event : pending_events) {
+		free(event);
+	}
+	pending_events.clear();
+}
+
+own<xcb_window> xcb_device::create_xcb_window(const video_mode &video_mode,
+											  std::string_view title_view,
+											  int visual_id) {
+	assert(xcb_screen);
+	assert(xcb_connection);
+
+	xcb_colormap_t xcb_colormap = xcb_generate_id(xcb_connection);
+	xcb_window_t xcb_window = xcb_generate_id(xcb_connection);
+
+	xcb_create_colormap(xcb_connection, XCB_COLORMAP_ALLOC_NONE, xcb_colormap,
+						xcb_screen->root, visual_id);
+
+	uint32_t eventmask =
+		XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_KEY_PRESS |
+		XCB_EVENT_MASK_KEY_RELEASE | XCB_EVENT_MASK_BUTTON_PRESS |
+		XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION |
+		XCB_EVENT_MASK_BUTTON_MOTION;
+	uint32_t valuelist[] = {eventmask, xcb_colormap, 0};
+	uint32_t valuemask = XCB_CW_EVENT_MASK | XCB_CW_COLORMAP;
+
+	xcb_create_window(xcb_connection, XCB_COPY_FROM_PARENT, xcb_window,
+					  xcb_screen->root, 0, 0, video_mode.width,
+					  video_mode.height, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT,
+					  visual_id, valuemask, valuelist);
+
+	xcb_change_property(xcb_connection, XCB_PROP_MODE_REPLACE, xcb_window,
+						XCB_ATOM_WM_NAME, XCB_ATOM_STRING, 8, title_view.size(),
+						title_view.data());
+
+	xcb_flush(xcb_connection);
+	auto window = heap<class xcb_window>(*this, xcb_window, xcb_colormap,
+										 video_mode, title_view);
+	windows[xcb_window] = window.get();
+
+	return window;
+}
+
+own<window> xcb_device::create_window(const video_mode &video_mode,
+									  std::string_view title_view) {
+	assert(xcb_screen);
+	return create_xcb_window(video_mode, title_view, xcb_screen->root_visual);
+}
+
+void xcb_device::flush() {
+	assert(xcb_connection);
+	xcb_flush(xcb_connection);
+}
+
+own<xcb_device> create_xcb_device(io_provider &provider) {
+	::Display *display = ::XOpenDisplay(nullptr);
+	if (!display) {
+		/// @todo log errors
+		return nullptr;
+	}
+
+	int screen = ::XDefaultScreen(display);
+
+	xcb_connection_t *xcb_connection = ::XGetXCBConnection(display);
+	if (!xcb_connection) {
+		/// @todo log errors
+		::XCloseDisplay(display);
+		return nullptr;
+	}
+
+	int fd = xcb_get_file_descriptor(xcb_connection);
+
+	own<input_stream> fd_wrapped = provider.wrap_input_fd(fd);
+	if (!fd_wrapped) {
+		::XCloseDisplay(display);
+		return nullptr;
+	}
+
+	::XSetEventQueueOwner(display, XCBOwnsEventQueue);
+
+	xcb_screen_iterator_t screen_iter =
+		xcb_setup_roots_iterator(xcb_get_setup(xcb_connection));
+	for (int screen_i = screen; screen_iter.rem && screen_i > 0;
+		 --screen_i, xcb_screen_next(&screen_iter))
+		;
+
+	xcb_screen_t *xcb_screen = screen_iter.data;
+
+	return heap<xcb_device>(display, screen, xcb_connection, xcb_screen,
+							std::move(fd_wrapped));
+}
+
+own<device> createdevice(io_provider &provider) {
+	return create_xcb_device(provider);
+}
+
+xcb_window::xcb_window(xcb_device &dev, xcb_window_t xcb_win,
+					   xcb_colormap_t xcb_colmap, const video_mode &vid_mode,
+					   std::string_view title_view_)
+	: device_{dev}, xcb_window_{xcb_win}, xcb_colormap_{xcb_colmap},
+	  video_mode_{vid_mode}, window_title_{title_view_} {}
+
+xcb_window::~xcb_window() {
+	device_.window_destroyed(xcb_window_);
+	xcb_destroy_window(device_.xcb_connection, xcb_window_);
+	device_.flush();
+}
+
+void xcb_window::show() {
+	assert(device_.xcb_connection);
+	xcb_map_window(device_.xcb_connection, xcb_window_);
+}
+
+void xcb_window::hide() {
+	assert(device_.xcb_connection);
+	xcb_unmap_window(device_.xcb_connection, xcb_window_);
+}
+
+const video_mode &xcb_window::get_video_mode() const { return video_mode_; }
+
+const std::string_view xcb_window::title() const { return window_title_; }
+
+void xcb_window::resize(size_t width, size_t height) {
+	const uint32_t values[2] = {static_cast<uint32_t>(width),
+								static_cast<uint32_t>(height)};
+
+	xcb_configure_window(device_.xcb_connection, xcb_window_,
+						 XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT,
+						 values);
+	video_mode_.width = width;
+	video_mode_.height = height;
+}
+
+conveyor<window::variant_event> xcb_window::on_event() {
+	auto caf = new_conveyor_and_feeder<window::variant_event>();
+	event_feeder = std::move(caf.feeder);
+	return std::move(caf.conveyor);
+}
+
+void xcb_window::resize_event(size_t x, size_t y, size_t width, size_t height) {
+	(void)x;
+	(void)y;
+	/// @todo maybe include x and y?
+	video_mode_.width = width;
+	video_mode_.height = height;
+
+	if (event_feeder) {
+		event_feeder->feed(
+			window::variant_event{window::event::resize{width, height}});
+	}
+}
+
+void xcb_window::mouse_event(int16_t x, int16_t y, uint16_t state,
+							bool pressed) {
+	if (x < 0 || y < 0) {
+		return;
+	}
+	uint32_t ux = static_cast<uint32_t>(x);
+	uint32_t uy = static_cast<uint32_t>(y);
+	if (ux >= video_mode_.width || uy >= video_mode_.height) {
+		return;
+	}
+	if (event_feeder) {
+		event_feeder->feed(window::variant_event{
+			window::event::mouse{state, pressed, ux, uy}});
+	}
+}
+
+void xcb_window::mouse_move_event(int16_t x, int16_t y) {
+	if (x < 0 || y < 0) {
+		return;
+	}
+	uint32_t ux = static_cast<uint32_t>(x);
+	uint32_t uy = static_cast<uint32_t>(y);
+	if (ux >= video_mode_.width || uy >= video_mode_.height) {
+		return;
+	}
+	if (event_feeder) {
+		event_feeder->feed(
+			window::variant_event{window::event::mouse_move{ux, uy}});
+	}
+}
+
+void xcb_window::keyboard_event(int16_t x, int16_t y, uint32_t keycode,
+							   bool pressed, bool repeat) {
+	if (x < 0 || y < 0) {
+		return;
+	}
+	uint32_t ux = static_cast<uint32_t>(x);
+	uint32_t uy = static_cast<uint32_t>(y);
+	if (ux >= video_mode_.width || uy >= video_mode_.height) {
+		return;
+	}
+	if (event_feeder) {
+		event_feeder->feed(window::variant_event{
+			window::event::keyboard{keycode, keycode, pressed, repeat}});
+	}
+}
+
+} // namespace saw