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use std::hash::Hash;
use std::any::TypeId;
use std::mem;
use winapi::HWND;
use user32::SendMessageW;
use ui::Ui;
use controls::{Control, ControlT, ControlType, AnyHandle};
use error::Error;
use events::Event;
use defs::ProgressBarState;
#[derive(Clone)]
pub struct ProgressBarT<ID: Hash+Clone> {
pub position: (i32, i32),
pub size: (u32, u32),
pub visible: bool,
pub disabled: bool,
pub range: (u32, u32),
pub value: u32,
pub step: u32,
pub state: ProgressBarState,
pub vertical: bool,
pub parent: ID,
}
impl<ID: Hash+Clone> ControlT<ID> for ProgressBarT<ID> {
fn type_id(&self) -> TypeId { TypeId::of::<ProgressBar>() }
fn events(&self) -> Vec<Event> {
vec![Event::Destroyed, Event::Moved, Event::Resized, Event::Raw]
}
fn build(&self, ui: &Ui<ID>) -> Result<Box<Control>, Error> {
use low::window_helper::{WindowParams, build_window, handle_of_window};
use winapi::{DWORD, WS_VISIBLE, WS_DISABLED, WS_CHILD, PBS_VERTICAL};
if self.range.1 <= self.range.0 {
let msg = "The progress bar range maximum value must be greater than the minimum value";
return Err(Error::UserError(msg.to_string()));
}
let flags: DWORD = WS_CHILD |
if self.visible { WS_VISIBLE } else { 0 } |
if self.disabled { WS_DISABLED } else { 0 } |
if self.vertical { PBS_VERTICAL } else { 0 } ;
let parent = match handle_of_window(ui, &self.parent, "The parent of a progress bar must be a window-like control.") {
Ok(h) => h,
Err(e) => { return Err(e); }
};
let params = WindowParams {
title: "",
class_name: "msctls_progress32",
position: self.position.clone(),
size: self.size.clone(),
flags: flags,
ex_flags: Some(0),
parent: parent
};
match unsafe{ build_window(params) } {
Ok(h) => {
unsafe{
set_range(h, self.range.0, self.range.1);
set_step(h, self.step);
set_value(h, self.value);
set_state(h, &self.state);
}
Ok( Box::new(ProgressBar{handle: h}) )
},
Err(e) => Err(Error::System(e))
}
}
}
pub struct ProgressBar {
handle: HWND
}
impl ProgressBar {
pub fn get_range(&self) -> (u32, u32) {
use winapi::{PBM_GETRANGE, PBRANGE};
let mut range = PBRANGE{iLow: 0, iHigh: 0};
unsafe{ SendMessageW(self.handle, PBM_GETRANGE, 0, mem::transmute(&mut range) ); }
(range.iLow as u32, range.iHigh as u32)
}
pub fn set_range(&self, min: u32, max: u32) -> Result<(), Error> {
if max <= min {
let msg = "The progress bar range maximum value must be greater than the minimum value";
return Err(Error::UserError(msg.to_string()));
}
unsafe{ set_range(self.handle, min, max); }
Ok(())
}
pub fn get_step(&self) -> u32 {
use winapi::PBM_GETSTEP;
unsafe{ SendMessageW(self.handle, PBM_GETSTEP, 0, 0) as u32 }
}
pub fn set_step(&self, step: u32) {
unsafe{ set_step(self.handle, step); }
}
pub fn get_value(&self) -> u32 {
use winapi::PBM_GETPOS;
unsafe{ SendMessageW(self.handle, PBM_GETPOS, 0, 0) as u32 }
}
pub fn set_value(&self, val: u32) {
unsafe{ set_value(self.handle, val); }
}
pub fn get_state(&self) -> ProgressBarState {
use winapi::{PBM_GETSTATE, PBST_ERROR, PBST_PAUSED};
match unsafe{ SendMessageW(self.handle, PBM_GETSTATE, 0, 0) as i32 } {
PBST_ERROR => ProgressBarState::Error,
PBST_PAUSED => ProgressBarState::Paused,
_ => ProgressBarState::Normal
}
}
pub fn set_state(&self, state: ProgressBarState) {
unsafe{ set_state(self.handle, &state); }
}
pub fn step(&self) {
use winapi::PBM_STEPIT;
unsafe{ SendMessageW(self.handle, PBM_STEPIT, 0, 0); }
}
pub fn advance(&self, amount: u32) {
use winapi::{PBM_DELTAPOS, WPARAM};
unsafe{ SendMessageW(self.handle, PBM_DELTAPOS, amount as WPARAM, 0); }
}
pub fn get_visibility(&self) -> bool { unsafe{ ::low::window_helper::get_window_visibility(self.handle) } }
pub fn set_visibility(&self, visible: bool) { unsafe{ ::low::window_helper::set_window_visibility(self.handle, visible); }}
pub fn get_position(&self) -> (i32, i32) { unsafe{ ::low::window_helper::get_window_position(self.handle) } }
pub fn set_position(&self, x: i32, y: i32) { unsafe{ ::low::window_helper::set_window_position(self.handle, x, y); }}
pub fn get_size(&self) -> (u32, u32) { unsafe{ ::low::window_helper::get_window_size(self.handle) } }
pub fn set_size(&self, w: u32, h: u32) { unsafe{ ::low::window_helper::set_window_size(self.handle, w, h, false); } }
pub fn get_enabled(&self) -> bool { unsafe{ ::low::window_helper::get_window_enabled(self.handle) } }
pub fn set_enabled(&self, e:bool) { unsafe{ ::low::window_helper::set_window_enabled(self.handle, e); } }
}
impl Control for ProgressBar {
fn handle(&self) -> AnyHandle {
AnyHandle::HWND(self.handle)
}
fn control_type(&self) -> ControlType {
ControlType::ProgressBar
}
fn free(&mut self) {
use user32::DestroyWindow;
unsafe{ DestroyWindow(self.handle) };
}
}
#[inline(always)]
unsafe fn set_range(handle: HWND, min: u32, max: u32) {
use winapi::{PBM_SETRANGE32, WPARAM, LPARAM};
SendMessageW(handle, PBM_SETRANGE32, min as WPARAM, max as LPARAM);
}
#[inline(always)]
unsafe fn set_step(handle: HWND, step: u32) {
use winapi::{PBM_SETSTEP, WPARAM};
SendMessageW(handle, PBM_SETSTEP, step as WPARAM, 0);
}
#[inline(always)]
unsafe fn set_value(handle: HWND, val: u32) {
use winapi::{PBM_SETPOS, WPARAM};
SendMessageW(handle, PBM_SETPOS, val as WPARAM, 0);
}
#[inline(always)]
unsafe fn set_state(handle: HWND, state: &ProgressBarState) {
use winapi::{PBM_SETSTATE, WPARAM, PBST_NORMAL, PBST_ERROR, PBST_PAUSED};
let state = match state {
&ProgressBarState::Normal => PBST_NORMAL,
&ProgressBarState::Paused => PBST_PAUSED,
&ProgressBarState::Error => PBST_ERROR,
};
SendMessageW(handle, PBM_SETSTATE, state as WPARAM, 0);
}