microui-redux 0.6.0

Idiomatic Rust MicroUI (immediate mode GUI) library port
Documentation 
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//
// Copyright 2022-Present (c) Raja Lehtihet & Wael El Oraiby
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors
// may be used to endorse or promote products derived from this software without
// specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
//! Generic widget dispatch used by retained traversal and widget internals.

use super::*;

impl Container {
    pub(crate) fn measure_widget_rect<W: Widget + ?Sized>(&mut self, state: &W) -> Recti {
        let body = self.layout.current_body();
        let avail = Dimensioni::new(body.width.max(0), body.height.max(0));
        let preferred = state.measure(self.style.as_ref(), &self.atlas, avail);
        self.layout.next_with_preferred(preferred)
    }

    pub(crate) fn layout_widget_dyn(&mut self, _results: &FrameResults, widget: &dyn WidgetStateHandleDyn) -> Recti {
        self.measure_widget_rect_dyn(widget)
    }

    pub(crate) fn measure_widget_rect_dyn(&mut self, widget: &dyn WidgetStateHandleDyn) -> Recti {
        let body = self.layout.current_body();
        let avail = Dimensioni::new(body.width.max(0), body.height.max(0));
        let preferred = widget.measure(self.style.as_ref(), &self.atlas, avail);
        self.layout.next_with_preferred(preferred)
    }

    pub(crate) fn render_widget_dyn(
        &mut self,
        results: &mut FrameResults,
        widget: &dyn WidgetStateHandleDyn,
        rect: Recti,
        input: Option<Rc<InputSnapshot>>,
        opt: WidgetOption,
        bopt: WidgetBehaviourOption,
        dispatch_site: String,
    ) -> (ControlState, ResourceState) {
        let widget_id = widget.widget_id();
        let control = self.update_control_with_opts(widget_id, rect, opt, bopt);
        let mut ctx = self.widget_ctx(widget_id, rect, input);
        let res = widget.run(&mut ctx, &control);
        results.record_with_context(widget_id, res, dispatch_site);
        (control, res)
    }

    pub(crate) fn layout_widget_handle<W: Widget>(&mut self, _results: &FrameResults, handle: &WidgetHandle<W>) -> Recti {
        self.measure_widget_rect_handle(handle)
    }

    pub(crate) fn measure_widget_rect_handle<W: Widget>(&mut self, handle: &WidgetHandle<W>) -> Recti {
        let state = handle.borrow();
        self.measure_widget_rect(&*state)
    }

    pub(crate) fn render_widget_handle<W: Widget>(
        &mut self,
        results: &mut FrameResults,
        handle: &WidgetHandle<W>,
        rect: Recti,
        input: Option<Rc<InputSnapshot>>,
        opt: WidgetOption,
        bopt: WidgetBehaviourOption,
        dispatch_site: String,
    ) -> (ControlState, ResourceState) {
        let widget_id = {
            let state = handle.borrow();
            widget_id_of(&*state)
        };
        let control = self.update_control_with_opts(widget_id, rect, opt, bopt);
        let mut ctx = self.widget_ctx(widget_id, rect, input);
        let res = {
            let mut state = handle.borrow_mut();
            state.run(&mut ctx, &control)
        };
        results.record_with_context(widget_id, res, dispatch_site);
        (control, res)
    }
}