RustPython/stdlib/src/tkinter.rs at main · github-roushan/RustPython · GitHub

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// cspell:ignore createcommand

pub(crate) use self::_tkinter::make_module;

#[pymodule]

mod _tkinter {

use rustpython_vm::types::Constructor;

use rustpython_vm::{PyObjectRef, PyPayload, PyRef, PyResult, VirtualMachine};

use rustpython_vm::builtins::{PyInt, PyStr, PyType};

use std::{ffi, ptr};

use crate::builtins::PyTypeRef;

use rustpython_common::atomic::AtomicBool;

use rustpython_common::atomic::Ordering;

#[cfg(windows)]

fn _get_tcl_lib_path() -> String {

// TODO: fix packaging

String::from(r"C:\ActiveTcl\lib")

}

#[pyattr(name = "TclError", once)]

fn tcl_error(vm: &VirtualMachine) -> PyTypeRef {

vm.ctx.new_exception_type(

"_tkinter",

"TclError",

Some(vec![vm.ctx.exceptions.exception_type.to_owned()]),

)

}

#[pyattr(name = "TkError", once)]

fn tk_error(vm: &VirtualMachine) -> PyTypeRef {

vm.ctx.new_exception_type(

"_tkinter",

"TkError",

Some(vec![vm.ctx.exceptions.exception_type.to_owned()]),

)

}

#[pyattr(once, name = "TK_VERSION")]

fn tk_version(_vm: &VirtualMachine) -> String {

format!("{}.{}", 8, 6)

}

#[pyattr(once, name = "TCL_VERSION")]

fn tcl_version(_vm: &VirtualMachine) -> String {

format!(

"{}.{}",

tk_sys::TCL_MAJOR_VERSION,

tk_sys::TCL_MINOR_VERSION

)

}

#[pyattr]

#[pyclass(name = "TclObject")]

#[derive(PyPayload)]

struct TclObject {

value: *mut tk_sys::Tcl_Obj,

}

impl std::fmt::Debug for TclObject {

fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {

write!(f, "TclObject")

}

unsafe impl Send for TclObject {}

unsafe impl Sync for TclObject {}

#[pyclass]

impl TclObject {}

static QUIT_MAIN_LOOP: AtomicBool = AtomicBool::new(false);

#[pyattr]

#[pyclass(name = "tkapp")]

#[derive(PyPayload)]

struct TkApp {

// Tcl_Interp *interp;

interpreter: *mut tk_sys::Tcl_Interp,

// int wantobjects;

want_objects: bool,

// int threaded; /* True if tcl_platform[threaded] */

threaded: bool,

// Tcl_ThreadId thread_id;

thread_id: Option<tk_sys::Tcl_ThreadId>,

// int dispatching;

dispatching: bool,

// PyObject *trace;

trace: Option<()>,

// /* We cannot include tclInt.h, as this is internal.

// So we cache interesting types here. */

old_boolean_type: *const tk_sys::Tcl_ObjType,

boolean_type: *const tk_sys::Tcl_ObjType,

byte_array_type: *const tk_sys::Tcl_ObjType,

double_type: *const tk_sys::Tcl_ObjType,

int_type: *const tk_sys::Tcl_ObjType,

wide_int_type: *const tk_sys::Tcl_ObjType,

bignum_type: *const tk_sys::Tcl_ObjType,

list_type: *const tk_sys::Tcl_ObjType,

string_type: *const tk_sys::Tcl_ObjType,

utf32_string_type: *const tk_sys::Tcl_ObjType,

pixel_type: *const tk_sys::Tcl_ObjType,

}

unsafe impl Send for TkApp {}

unsafe impl Sync for TkApp {}

impl std::fmt::Debug for TkApp {

fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {

write!(f, "TkApp")

}

#[derive(FromArgs, Debug)]

struct TkAppConstructorArgs {

#[pyarg(any)]

screen_name: Option<String>,

#[pyarg(any)]

_base_name: Option<String>,

#[pyarg(any)]

class_name: String,

#[pyarg(any)]

interactive: i32,

#[pyarg(any)]

wantobjects: i32,

#[pyarg(any, default = "true")]

want_tk: bool,

#[pyarg(any)]

sync: i32,

#[pyarg(any)]

use_: Option<String>,

}

impl Constructor for TkApp {

type Args = TkAppConstructorArgs;

fn py_new(

_zelf: PyRef<PyType>,

args: Self::Args,

vm: &VirtualMachine,

) -> PyResult<PyObjectRef> {

create(args, vm)

}

fn varname_converter(obj: PyObjectRef, vm: &VirtualMachine) -> PyResult<String> {

// if let Ok(bytes) = obj.bytes(vm) {

// todo!()

// }

// str

if let Some(str) = obj.downcast_ref::<PyStr>() {

return Ok(str.as_str().to_string());

}

if let Some(_tcl_obj) = obj.downcast_ref::<TclObject>() {

// Assume that the Tcl object has a method to retrieve a string.

// return tcl_obj.

todo!();

}

// Construct an error message using the type name (truncated to 50 characters).

Err(vm.new_type_error(format!(

"must be str, bytes or Tcl_Obj, not {:.50}",

obj.obj_type().str(vm)?.as_str()

)))

}

// TODO: DISALLOW_INSTANTIATION

#[pyclass(with(Constructor))]

impl TkApp {

fn from_bool(&self, obj: *mut tk_sys::Tcl_Obj) -> bool {

let mut res = -1;

unsafe {

if tk_sys::Tcl_GetBooleanFromObj(self.interpreter, obj, &mut res)

!= tk_sys::TCL_OK as i32

{

panic!("Tcl_GetBooleanFromObj failed");

}

assert!(res == 0 || res == 1);

res != 0

}

fn from_object(

&self,

obj: *mut tk_sys::Tcl_Obj,

vm: &VirtualMachine,

) -> PyResult<PyObjectRef> {

let type_ptr = unsafe { (*obj).typePtr };

if type_ptr == ptr::null() {

return self.unicode_from_object(obj, vm);

} else if type_ptr == self.old_boolean_type || type_ptr == self.boolean_type {

return Ok(vm.ctx.new_bool(self.from_bool(obj)).into());

} else if type_ptr == self.string_type

|| type_ptr == self.utf32_string_type

|| type_ptr == self.pixel_type

{

return self.unicode_from_object(obj, vm);

}

// TODO: handle other types

return Ok(TclObject { value: obj }.into_pyobject(vm));

}

fn unicode_from_string(

s: *mut ffi::c_char,

size: usize,

vm: &VirtualMachine,

) -> PyResult<PyObjectRef> {

// terribly unsafe

let s = unsafe { std::slice::from_raw_parts(s, size) }

.to_vec()

.into_iter()

.map(|c| c as u8)

.collect::<Vec<u8>>();

let s = String::from_utf8(s).unwrap();

Ok(PyObjectRef::from(vm.ctx.new_str(s)))

}

fn unicode_from_object(

&self,

obj: *mut tk_sys::Tcl_Obj,

vm: &VirtualMachine,

) -> PyResult<PyObjectRef> {

let type_ptr = unsafe { (*obj).typePtr };

if type_ptr != ptr::null()

&& self.interpreter != ptr::null_mut()

&& (type_ptr == self.string_type || type_ptr == self.utf32_string_type)

{

let len = ptr::null_mut();

let data = unsafe { tk_sys::Tcl_GetUnicodeFromObj(obj, len) };

return if size_of::<tk_sys::Tcl_UniChar>() == 2 {

let v = unsafe { std::slice::from_raw_parts(data as *const u16, len as usize) };

let s = String::from_utf16(v).unwrap();

Ok(PyObjectRef::from(vm.ctx.new_str(s)))

} else {

let v = unsafe { std::slice::from_raw_parts(data as *const u32, len as usize) };

let s = widestring::U32String::from_vec(v).to_string_lossy();

Ok(PyObjectRef::from(vm.ctx.new_str(s)))

};

}

let len = ptr::null_mut();

let s = unsafe { tk_sys::Tcl_GetStringFromObj(obj, len) };

Self::unicode_from_string(s, len as _, vm)

}

#[pymethod]

fn getvar(&self, arg: PyObjectRef, vm: &VirtualMachine) -> PyResult<PyObjectRef> {

// TODO: technically not thread safe

let name = varname_converter(arg, vm)?;

let res = unsafe {

tk_sys::Tcl_GetVar2Ex(

self.interpreter,

ptr::null(),

name.as_ptr() as _,

tk_sys::TCL_LEAVE_ERR_MSG as _,

)

};

if res == ptr::null_mut() {

todo!();

}

let res = if self.want_objects {

self.from_object(res, vm)

} else {

self.unicode_from_object(res, vm)

}?;

Ok(res)

}

#[pymethod]

fn getint(&self, arg: PyObjectRef, vm: &VirtualMachine) -> PyResult<PyObjectRef> {

if let Some(int) = arg.downcast_ref::<PyInt>() {

return Ok(PyObjectRef::from(vm.ctx.new_int(int.as_bigint().clone())));

}

if let Some(obj) = arg.downcast_ref::<TclObject>() {

let value = obj.value;

unsafe { tk_sys::Tcl_IncrRefCount(value) };

} else {

todo!();

}

todo!();

}

// TODO: Fix arguments

#[pymethod]

fn mainloop(&self, threshold: Option<i32>) -> PyResult<()> {

let threshold = threshold.unwrap_or(0);

todo!();

}

#[pymethod]

fn quit(&self) {

QUIT_MAIN_LOOP.store(true, Ordering::Relaxed);

}

#[pyfunction]

fn create(args: TkAppConstructorArgs, vm: &VirtualMachine) -> PyResult<PyObjectRef> {

unsafe {

let interp = tk_sys::Tcl_CreateInterp();

let want_objects = args.wantobjects != 0;

let threaded = {

let part1 = String::from("tcl_platform");

let part2 = String::from("threaded");

let part1_ptr = part1.as_ptr();

let part2_ptr = part2.as_ptr();

tk_sys::Tcl_GetVar2Ex(

interp,

part1_ptr as _,

part2_ptr as _,

tk_sys::TCL_GLOBAL_ONLY as ffi::c_int,

)

} != ptr::null_mut();

let thread_id = tk_sys::Tcl_GetCurrentThread();

let dispatching = false;

let trace = None;

// TODO: Handle threaded build

let bool_str = String::from("oldBoolean");

let old_boolean_type = tk_sys::Tcl_GetObjType(bool_str.as_ptr() as _);

let (boolean_type, byte_array_type) = {

let true_str = String::from("true");

let mut value = *tk_sys::Tcl_NewStringObj(true_str.as_ptr() as _, -1);

let mut bool_value = 0;

tk_sys::Tcl_GetBooleanFromObj(interp, &mut value, &mut bool_value);

let boolean_type = value.typePtr;

tk_sys::Tcl_DecrRefCount(&mut value);

let mut value =

*tk_sys::Tcl_NewByteArrayObj(&bool_value as *const i32 as *const u8, 1);

let byte_array_type = value.typePtr;

tk_sys::Tcl_DecrRefCount(&mut value);

(boolean_type, byte_array_type)

};

let double_str = String::from("double");

let double_type = tk_sys::Tcl_GetObjType(double_str.as_ptr() as _);

let int_str = String::from("int");

let int_type = tk_sys::Tcl_GetObjType(int_str.as_ptr() as _);

let int_type = if int_type == ptr::null() {

let mut value = *tk_sys::Tcl_NewIntObj(0);

let res = value.typePtr;

tk_sys::Tcl_DecrRefCount(&mut value);

res

} else {

int_type

};

let wide_int_str = String::from("wideInt");

let wide_int_type = tk_sys::Tcl_GetObjType(wide_int_str.as_ptr() as _);

let bignum_str = String::from("bignum");

let bignum_type = tk_sys::Tcl_GetObjType(bignum_str.as_ptr() as _);

let list_str = String::from("list");

let list_type = tk_sys::Tcl_GetObjType(list_str.as_ptr() as _);

let string_str = String::from("string");

let string_type = tk_sys::Tcl_GetObjType(string_str.as_ptr() as _);

let utf32_str = String::from("utf32");

let utf32_string_type = tk_sys::Tcl_GetObjType(utf32_str.as_ptr() as _);

let pixel_str = String::from("pixel");

let pixel_type = tk_sys::Tcl_GetObjType(pixel_str.as_ptr() as _);

let exit_str = String::from("exit");

tk_sys::Tcl_DeleteCommand(interp, exit_str.as_ptr() as _);

if let Some(name) = args.screen_name {

tk_sys::Tcl_SetVar2(

interp,

"env".as_ptr() as _,

"DISPLAY".as_ptr() as _,

name.as_ptr() as _,

tk_sys::TCL_GLOBAL_ONLY as i32,

);

}

if args.interactive != 0 {

tk_sys::Tcl_SetVar(

interp,

"tcl_interactive".as_ptr() as _,

"1".as_ptr() as _,

tk_sys::TCL_GLOBAL_ONLY as i32,

);

} else {

tk_sys::Tcl_SetVar(

interp,

"tcl_interactive".as_ptr() as _,

"0".as_ptr() as _,

tk_sys::TCL_GLOBAL_ONLY as i32,

);

}

let argv0 = args.class_name.clone().to_lowercase();

tk_sys::Tcl_SetVar(

interp,

"argv0".as_ptr() as _,

argv0.as_ptr() as _,

tk_sys::TCL_GLOBAL_ONLY as i32,

);

if !args.want_tk {

tk_sys::Tcl_SetVar(

interp,

"_tkinter_skip_tk_init".as_ptr() as _,

"1".as_ptr() as _,

tk_sys::TCL_GLOBAL_ONLY as i32,

);

}

if args.sync != 0 || args.use_.is_some() {

let mut argv = String::with_capacity(4);

if args.sync != 0 {

argv.push_str("-sync");

}

if args.use_.is_some() {

if args.sync != 0 {

argv.push(' ');

}

argv.push_str("-use ");

argv.push_str(&args.use_.unwrap());

}

argv.push_str("\0");

let argv_ptr = argv.as_ptr() as *mut *mut i8;

tk_sys::Tcl_SetVar(

interp,

"argv".as_ptr() as _,

argv_ptr as *const i8,

tk_sys::TCL_GLOBAL_ONLY as i32,

);

}

#[cfg(windows)]

{

let ret = std::env::var("TCL_LIBRARY");

if ret.is_err() {

let loc = _get_tcl_lib_path();

std::env::set_var("TCL_LIBRARY", loc);

}

// Bindgen cannot handle Tcl_AppInit

if tk_sys::Tcl_Init(interp) != tk_sys::TCL_OK as ffi::c_int {

todo!("Tcl_Init failed");

}

Ok(TkApp {

interpreter: interp,

want_objects,

threaded,

thread_id: Some(thread_id),

dispatching,

trace,

old_boolean_type,

boolean_type,

byte_array_type,

double_type,

int_type,

wide_int_type,

bignum_type,

list_type,

string_type,

utf32_string_type,

pixel_type,

}

.into_pyobject(vm))

}

#[pyattr]

const READABLE: i32 = tk_sys::TCL_READABLE as i32;

#[pyattr]

const WRITABLE: i32 = tk_sys::TCL_WRITABLE as i32;

#[pyattr]

const EXCEPTION: i32 = tk_sys::TCL_EXCEPTION as i32;

#[pyattr]

const TIMER_EVENTS: i32 = tk_sys::TCL_TIMER_EVENTS as i32;

#[pyattr]

const IDLE_EVENTS: i32 = tk_sys::TCL_IDLE_EVENTS as i32;

#[pyattr]

const DONT_WAIT: i32 = tk_sys::TCL_DONT_WAIT as i32;

}

RustPython/stdlib/src/tkinter.rs at main · github-roushan/RustPython · GitHub

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