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use std::hash::Hash;
use std::any::TypeId;
use winapi::{HWND, HFONT};
use ui::Ui;
use controls::{Control, ControlT, ControlType, AnyHandle};
use error::Error;
use events::Event;
use defs::HTextAlign;
#[derive(Clone)]
pub struct LabelT<S: Clone+Into<String>, ID: Hash+Clone> {
pub text: S,
pub position: (i32, i32),
pub size: (u32, u32),
pub visible: bool,
pub disabled: bool,
pub align: HTextAlign,
pub parent: ID,
pub font: Option<ID>,
}
impl<S: Clone+Into<String>, ID: Hash+Clone> ControlT<ID> for LabelT<S, ID> {
fn type_id(&self) -> TypeId { TypeId::of::<Label>() }
fn events(&self) -> Vec<Event> {
vec![Event::Destroyed, Event::Click, Event::DoubleClick, Event::Moved, Event::Resized, Event::Raw]
}
fn build(&self, ui: &Ui<ID>) -> Result<Box<Control>, Error> {
use low::window_helper::{WindowParams, build_window, set_window_font, handle_of_window, handle_of_font};
use low::defs::{SS_NOTIFY, SS_NOPREFIX, SS_LEFT, SS_RIGHT, SS_CENTER};
use winapi::{DWORD, WS_VISIBLE, WS_DISABLED, WS_CHILD};
let flags: DWORD = WS_CHILD | SS_NOTIFY | SS_NOPREFIX |
if self.visible { WS_VISIBLE } else { 0 } |
if self.disabled { WS_DISABLED } else { 0 } |
match self.align { HTextAlign::Center=>SS_CENTER, HTextAlign::Left=>SS_LEFT, HTextAlign::Right=>SS_RIGHT };
let parent = match handle_of_window(ui, &self.parent, "The parent of a label must be a window-like control.") {
Ok(h) => h,
Err(e) => { return Err(e); }
};
let font_handle: Option<HFONT> = match self.font.as_ref() {
Some(font_id) =>
match handle_of_font(ui, &font_id, "The font of a label must be a font resource.") {
Ok(h) => Some(h),
Err(e) => { return Err(e); }
},
None => None
};
let params = WindowParams {
title: self.text.clone().into(),
class_name: "STATIC",
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_window_font(h, font_handle, true); }
Ok( Box::new(Label{handle: h}) )
},
Err(e) => Err(Error::System(e))
}
}
}
pub struct Label {
handle: HWND
}
impl Label {
pub fn get_text(&self) -> String { unsafe{ ::low::window_helper::get_window_text(self.handle) } }
pub fn set_text<'a>(&self, text: &'a str) { unsafe{ ::low::window_helper::set_window_text(self.handle, text); } }
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 Label {
fn handle(&self) -> AnyHandle {
AnyHandle::HWND(self.handle)
}
fn control_type(&self) -> ControlType {
ControlType::Label
}
fn free(&mut self) {
use user32::DestroyWindow;
unsafe{ DestroyWindow(self.handle) };
}
}