215 lines
4.9 KiB
Rust
215 lines
4.9 KiB
Rust
use std::slice;
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use libc::{c_int, c_uint, uint8_t, uint16_t};
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use std::ptr::null;
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use std::marker::PhantomData;
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#[repr(C)]
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pub struct QString {
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data: *const uint8_t,
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len: c_int,
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}
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#[repr(C)]
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pub struct QStringIn {
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data: *const uint16_t,
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len: c_int,
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}
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impl QStringIn {
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pub fn convert(&self) -> String {
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let data = unsafe { slice::from_raw_parts(self.data, self.len as usize) };
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String::from_utf16_lossy(data)
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}
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}
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impl<'a> From<&'a String> for QString {
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fn from(string: &'a String) -> QString {
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QString {
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len: string.len() as c_int,
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data: string.as_ptr(),
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}
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}
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}
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#[repr(C)]
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pub struct QByteArray {
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data: *const uint8_t,
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len: c_int,
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}
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impl QByteArray {
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pub fn convert(&self) -> Vec<u8> {
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let data = unsafe { slice::from_raw_parts(self.data, self.len as usize) };
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Vec::from(data)
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}
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}
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impl<'a> From<&'a Vec<u8>> for QByteArray {
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fn from(value: &'a Vec<u8>) -> QByteArray {
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QByteArray {
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len: value.len() as c_int,
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data: value.as_ptr(),
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}
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}
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}
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#[derive(Clone)]
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pub enum Variant {
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None,
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Bool(bool),
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Int(c_int),
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String(String),
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ByteArray(Vec<u8>),
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}
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impl From<bool> for Variant {
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fn from(value: bool) -> Variant {
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Variant::Bool(value)
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}
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}
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impl From<String> for Variant {
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fn from(value: String) -> Variant {
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Variant::String(value)
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}
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}
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/* values from qvariant.h and qmetatype.h */
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#[repr(u32)]
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#[derive(Clone, Copy)]
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enum VariantType {
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Invalid = 0,
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Bool = 1,
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Int = 2,
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String = 10,
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ByteArray = 12,
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}
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#[repr(C)]
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pub struct QVariant<'a> {
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type_: VariantType,
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value: c_int,
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data: *const uint8_t,
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phantom: PhantomData<&'a u8>,
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}
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impl<'a> QVariant<'a> {
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pub fn type_(&self) -> u32 {
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self.type_ as u32
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}
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pub fn convert(&self) -> Variant {
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match self.type_ {
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VariantType::Bool => {
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Variant::Bool(self.value != 0)
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},
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VariantType::Int => {
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Variant::Int(self.value)
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},
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VariantType::String => {
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let data = unsafe {
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let d = self.data as *const uint16_t;
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slice::from_raw_parts(d, self.value as usize)
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};
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Variant::String(String::from_utf16_lossy(data))
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}
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VariantType::ByteArray => {
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let data = unsafe {
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slice::from_raw_parts(self.data, self.value as usize)
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};
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Variant::ByteArray(Vec::from(data))
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}
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_ => Variant::None
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}
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}
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}
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impl<'a> From<&'a Variant> for QVariant<'a> {
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fn from(variant: &'a Variant) -> QVariant {
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match *variant {
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Variant::None => {
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QVariant {
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data: null(),
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value: 0,
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type_: VariantType::Invalid,
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phantom: PhantomData,
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}
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}
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Variant::Bool(v) => {
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QVariant {
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data: null(),
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value: v as c_int,
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type_: VariantType::Bool,
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phantom: PhantomData,
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}
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}
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Variant::Int(v) => {
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QVariant {
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data: null(),
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value: v,
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type_: VariantType::Int,
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phantom: PhantomData,
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}
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}
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Variant::String(ref v) => {
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QVariant {
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data: v.as_ptr(),
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value: v.len() as c_int,
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type_: VariantType::String,
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phantom: PhantomData,
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}
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}
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Variant::ByteArray(ref v) => {
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QVariant {
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data: v.as_ptr(),
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value: v.len() as c_int,
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type_: VariantType::ByteArray,
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phantom: PhantomData,
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}
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}
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}
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}
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}
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#[repr(C)]
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pub struct QModelIndex {
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row: c_int,
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column: c_int,
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internal_id: usize,
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}
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impl QModelIndex {
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pub fn invalid() -> QModelIndex {
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QModelIndex {
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row: -1,
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column: -1,
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internal_id: 0,
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}
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}
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pub fn create(row: c_int, column: c_int, id: usize) -> QModelIndex {
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QModelIndex {
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row: row,
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column: column,
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internal_id: id,
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}
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}
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pub fn flat(row: c_int, column: c_int) -> QModelIndex {
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QModelIndex {
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row: row,
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column: column,
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internal_id: 1,
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}
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}
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pub fn is_valid(&self) -> bool {
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self.internal_id != 0 && self.row >= 0 && self.column >= 0
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}
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pub fn row(&self) -> c_int {
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self.row
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}
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pub fn column(&self) -> c_int {
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self.column
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}
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pub fn id(&self) -> usize {
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self.internal_id
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}
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}
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