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#![allow(unused_mut)]
use cgmath::Point2;
use std::cell::RefCell;
use stretch::node::Node;
use crate::prelude::OnDemand;
use crate::{
foundation::{ChildBounds, Helper, Id, KeyEvent, MouseEvent, Slot, TextEvent, WidgetClipEvent},
widgets::Widget,
};
use super::WidgetComponent;
pub trait ElementVisitor {
fn visit_child_elements(&self, element: &dyn Element);
}
/// Inherited from Element
pub trait ComponentElement: Element {
// @protected
/// Subclasses should override this function to actually call the
/// appropriate build function (e.g., StatelessWidget.build or State.build)
/// for their widget.
// not a WidgetBuilder
fn build(&self) -> &dyn Widget;
// override
/// Remove the given child from the element's child list, in preparation for the
/// child being reused elsewhere in the element tree.
fn forget_child(&self, child: &dyn Element);
// override
/// Add this element to the tree in the given slot of the given parent.
fn mount(&self, parent: Option<&dyn Element>, new_slot: Option<Slot>);
// override
/// Calls the StatelessWidget.build method of the StatelessWidget object
/// (for stateless widgets) or the State.build method of the State object
/// (for stateful widgets) and then updates the widget tree.
fn perform_rebuild();
// override
/// Calls the argument for each child. Must be overridden by subclasses
/// that support having children.
fn visit_children(&self, visitor: &dyn ElementVisitor);
}
/// Inherited from Element
pub trait RenderObjectElement: Element {
// // override
// /// Add renderObject to the render tree at the location specified by newSlot.
// fn attach_render_object(&self, new_slot: Slot);
// // override
// /// Transition from the "active" to the "inactive" lifecycle state.
// fn deactivate(&self);
// // override
// /// Add additional properties associated with the node.
// fn debugFillProperties(properties: DiagnosticPropertiesBuilder);
// // override
// /// Remove renderObject from the render tree.
// fn detachRenderObject();
// // @protected
// /// Insert the given child into renderObject at the given slot.
// fn insertRenderObjectChild(child: RenderObject, slot: Option<Slot>);
// // override
// /// Add this element to the tree in the given slot of the given parent.
// fn mount(parent: Option<dyn Element>, new_slot: Option<Slot>);
// // @protected
// /// Move the given child from the given old slot to the given new slot.
// fn moveRenderObjectChild(child: RenderObject, oldSlot: Option<Slot>, newSlot: Option<Slot>);
// // override
// /// Called by rebuild() after the appropriate checks have been made.
// fn performRebuild();
// // @protected
// // Remove the given child from renderObject.
// fn removeRenderObjectChild(child: RenderObject, slot: Option<Slot>);
// // override
// /// Transition from the "inactive" to the "defunct" lifecycle state.
// fn unmount();
// // override
// /// Change the widget used to configure this element.
// fn update(newWidget: RenderObjectWidget);
// // @protected
// /// Updates the children of this element to use new widgets.
// fn updateChildren(
// oldChildren: Vec<Element>,
// newWidgets: Vec<Widget>,
// forgottenChildren: Option<HashSet<Element>>,
// slots: Option<Vec<Object>>,
// ) -> Vec<Element>;
}
// activate() -> void
// Transition from the "inactive" to the "active" lifecycle state.
// @mustCallSuper
//
// attachRenderObject(Object? newSlot) -> void
// Add renderObject to the render tree at the location specified by newSlot.
//
// deactivate() -> void
// Transition from the "active" to the "inactive" lifecycle state.
// @mustCallSuper
//
// deactivateChild(Element child) -> void
// Move the given element to the list of inactive elements and detach its render object from the render tree.
// @protected
//
// debugDeactivated() -> void
// Called, in debug mode, after children have been deactivated (see deactivate).
// @mustCallSuper
//
// debugDescribeChildren() -> List<DiagnosticsNode>
// Returns a list of DiagnosticsNode objects describing this node's children.
// override
//
// debugFillProperties(DiagnosticPropertiesBuilder properties) -> void
// Add additional properties associated with the node.
// override
//
// debugGetCreatorChain(int limit) -> String
// Returns a description of what caused this element to be created.
//
// debugGetDiagnosticChain() -> List<Element>
// Returns the parent chain from this element back to the root of the tree.
//
// debugVisitOnstageChildren(ElementVisitor visitor) -> void
// Calls the argument for each child considered onstage.
//
// dependOnInheritedElement(InheritedElement ancestor, {Object? aspect}) -> InheritedWidget
// Registers this build context with ancestor such that when ancestor's widget changes this build context is rebuilt.
// override
//
// dependOnInheritedWidgetOfExactType<T extends InheritedWidget>({Object? aspect}) -> T?
// Obtains the nearest widget of the given type T, which must be the type of a concrete InheritedWidget subclass, and registers this build context with that widget such that when that widget changes (or a new widget of that type is introduced, or the widget goes away), this build context is rebuilt so that it can obtain new values from that widget.
// override
//
// describeElement(String name, {DiagnosticsTreeStyle style = DiagnosticsTreeStyle.errorProperty}) -> DiagnosticsNode
// Returns a description of an Element from the current build context.
// override
//
// describeMissingAncestor({required Type expectedAncestorType}) -> List<DiagnosticsNode>
// Adds a description of a specific type of widget missing from the current build context's ancestry tree.
// override
//
// describeOwnershipChain(String name) -> DiagnosticsNode
// Adds a description of the ownership chain from a specific Element to the error report.
// override
//
// describeWidget(String name, {DiagnosticsTreeStyle style = DiagnosticsTreeStyle.errorProperty}) -> DiagnosticsNode
// Returns a description of the Widget associated with the current build context.
// override
//
// detachRenderObject() -> void
// Remove renderObject from the render tree.
//
// didChangeDependencies() -> void
// Called when a dependency of this element changes.
// @mustCallSuper
//
// findAncestorRenderObjectOfType<T extends RenderObject>() -> T?
// Returns the RenderObject object of the nearest ancestor RenderObjectWidget widget that is an instance of the given type T.
// override
//
// findAncestorStateOfType<T extends State<StatefulWidget>>() -> T?
// Returns the State object of the nearest ancestor StatefulWidget widget that is an instance of the given type T.
// override
//
// findAncestorWidgetOfExactType<T extends Widget>() -> T?
// Returns the nearest ancestor widget of the given type T, which must be the type of a concrete Widget subclass.
// override
//
// findRenderObject() -> RenderObject?
// The current RenderObject for the widget. If the widget is a RenderObjectWidget, this is the render object that the widget created for itself. Otherwise, it is the render object of the first descendant RenderObjectWidget.
// override
//
// findRootAncestorStateOfType<T extends State<StatefulWidget>>() -> T?
// Returns the State object of the furthest ancestor StatefulWidget widget that is an instance of the given type T.
// override
//
// forgetChild(Element child) -> void
// Remove the given child from the element's child list, in preparation for the child being reused elsewhere in the element tree.
// @mustCallSuper, @protected
// getElementForInheritedWidgetOfExactType<T extends InheritedWidget>() -> InheritedElement?
// Obtains the element corresponding to the nearest widget of the given type T, which must be the type of a concrete InheritedWidget subclass.
// override
//
// inflateWidget(Widget newWidget, Object? newSlot) -> Element
// Create an element for the given widget and add it as a child of this element in the given slot.
// @protected
//
// markNeedsBuild() -> void
// Marks the element as dirty and adds it to the global list of widgets to rebuild in the next frame.
//
// mount(Element? parent, Object? newSlot) -> void
// Add this element to the tree in the given slot of the given parent.
// @mustCallSuper
//
// performRebuild() -> void
// Called by rebuild() after the appropriate checks have been made.
// @protected
//
// reassemble() -> void
// Called whenever the application is reassembled during debugging, for example during hot reload.
// @mustCallSuper, @protected
//
// rebuild() -> void
// Called by the BuildOwner when BuildOwner.scheduleBuildFor has been called to mark this element dirty, by mount when the element is first built, and by update when the widget has changed.
//
// toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) -> DiagnosticsNode
// Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
//
// toStringShort() -> String
// A short, textual description of this element.
// override
//
// unmount() -> void
// Transition from the "inactive" to the "defunct" lifecycle state.
// @mustCallSuper
//
// update(covariant Widget newWidget) -> void
// Change the widget used to configure this element.
// @mustCallSuper
//
// updateChild(Element? child, Widget? newWidget, Object? newSlot) -> Element?
// Update the given child with the given new configuration.
// @protected
//
// updateSlotForChild(Element child, Object? newSlot) -> void
// Change the slot that the given child occupies in its parent.
// @protected
//
// visitAncestorElements(bool visitor(Element element)) -> void
// Walks the ancestor chain, starting with the parent of this build context's widget, invoking the argument for each ancestor. The callback is given a reference to the ancestor widget's corresponding Element object. The walk stops when it reaches the root widget or when the callback returns false. The callback must not return null.
// override
//
// visitChildElements(ElementVisitor visitor) -> void
// Wrapper around visitChildren for BuildContext.
// override
//
// visitChildren(ElementVisitor visitor) -> void
// Calls the argument for each child. Must be overridden by subclasses that support having children.
/// Implementers: [ComponentElement], [RenderObjectElement]
pub trait Element
where
Self: AsRef<RefCell<WidgetComponent>>,
{
// ?_into:Vec<WidgetComponent>
fn children_at_point(
&self,
x: f32,
y: f32,
into: Option<Vec<WidgetComponent>>,
) -> Vec<WidgetComponent> {
// let comp = self.as_ref().borrow();
// assert!(!comp.destroyed, "Widget was already destroyed but is being interacted with");
// let result = into.unwrap_or_default();
// if comp.children.len() == 0 {
// return result;
// }
// for child in comp.children.iter() {
// if let Some(widget) = child.widget() {
// if widget.contains(x, y) && widget.visible() {
// result.push(child);
// if widget.children().len() > 0 {
// return widget.children_at_point(x, y, Some(result));
// }
// }
// }
// }
// _result.sort(|a, b| {
// if a.depth == b.depth {
// return 0;
// }
//
// if a.depth < b.depth {
// return -1;
// }
// return 1;
// }); // DV
// return result;
todo!()
}
fn topmost_child_at_point(&self, x: f32, y: f32) -> Option<&Box<dyn Element>> {
let comp = self.as_ref().borrow();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
// //if we have no children, we are the topmost child
// if comp.children.len() == 0 {
// return Some(comp);
// }
// //if we have children, we look at each one, looking for the highest one
// //after we have the highest one, we ask it to return it"s own highest child
// let highest_child = comp;
// let highest_depth = 0.0;
// for child in comp.children.iter() {
// if let Some(widget) = child.widget() {
// if widget.visible() && widget.contains(x, y) {
// if widget.depth() >= highest_depth {
// highest_child = *child;
// highest_depth = widget.depth();
// } //highest_depth
// } //child contains point
// }
// }
// if highest_child != comp.id() && highest_child.children.len() != 0 {
// if let Some(widget) = highest_child.widget() {
// if widget.children.len() != 0 {
// widget.topmost_child_at_point(x, y)
// } else {
// highest_child
// }
// }
// } else {
// highest_child
// }
todo!()
}
fn contains(&self, x: f32, y: f32) -> bool {
let comp = self.as_ref().borrow();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
let inside = Helper::in_rect(x, y, comp.x, comp.y, comp.w, comp.h);
if comp.clip.is_none() {
return inside;
}
// if inside {
// if let Some(clip) = comp.clip {
// if let Some(widget) = clip.widget() {
// return widget.contains(x, y);
// }
// }
// }
// false
inside
}
fn onclipchanged(&self) {
let comp = self.as_ref().borrow();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
// if let Some(clip) = comp.clip {
// if let Some(widget) = clip.widget() {
// comp.onclip.emit(&WidgetClipEvent {
// clipped: false,
// h: widget.h(),
// w: widget.w(),
// x: widget.x(),
// y: widget.y(),
// });
// }
// }
}
/// The control this one is clipped by
fn clip(&self) -> Option<Id> {
let comp = self.as_ref().borrow();
comp.clip
}
/// The control this one is clipped by
fn set_clip(&self, other: Option<Id>) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
// if let Some(clip) = comp.clip {
// if let Some(widget) = clip.widget() {
// // widget.onbounds.remove(box || self.onclipchanged());
// todo!()
// }
// }
comp.clip = other;
if let Some(clip) = comp.clip {
// if let Some(widget) = clip.widget() {
// // widget.onbounds.listen(box |e| self.onclipchanged());
// todo!()
// }
// // TODO: clip children applies to children
// for child in comp.children.iter() {
// if let Some(widget) = child.widget() {
// widget.set_clip(comp.clip);
// }
// }
// self.onclipchanged();
} else if comp.onclip.is_some() {
let _ = comp.onclip.get().try_send(WidgetClipEvent {
clipped: true,
h: 0.0,
w: 0.0,
x: 0.0,
y: 0.0,
});
}
}
#[inline]
fn set_visible_only(&self, visible: bool) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
comp.update_vis_state = false;
comp.visible = visible;
comp.update_vis_state = true;
}
/// If the control is visible
fn visible(&self) -> bool {
let comp = self.as_ref().borrow();
comp.visible
}
/// If the control is visible
fn vis_state(&self) -> bool {
let comp = self.as_ref().borrow();
comp.vis_state
}
/// If the control is visible
fn set_visible(&self, visible: bool) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
comp.visible = visible;
if comp.update_vis_state {
comp.vis_state = visible;
}
if comp.onvisible.is_some() {
let visible = comp.visible;
let _ = comp.onvisible.get().try_send(visible);
}
// for child in comp.children.iter() {
// if let Some(widget) = child.widget() {
// widget.set_visible_only(comp.visible && widget.vis_state());
// }
// }
if let Some(widget) = comp.canvas.as_mut() {
widget.focus_invalid = true;
}
}
// ?_from:WidgetComponent = None
fn find_top_parent(&self, from: Option<&WidgetComponent>) -> Option<WidgetComponent> {
let comp = self.as_ref().borrow();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
// let target = from.unwrap_or(comp);
// match target.parent {
// Some(parent) => {
// // // if the parent of the target is not canvas,
// // // keep escalating until it is
// // if Std.is(target.parent, Canvas) {
// // return target;
// // } else {
// // //is
// // return comp.parent.find_top_parent(self);
// // }
// todo!()
// }
// None => None,
// }
todo!()
}
fn add(&self, child: &dyn Element) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if let Some(parent) = child.parent() {
parent.remove(child.id());
if parent.id() != self.id() {
comp.children.push(child.id());
child.set_parent(Some(self.id()));
if comp.onchildadd.is_some() {
let _ = comp.onchildadd.get().try_send(child.id());
}
}
if let Some(widget) = comp.canvas.as_ref() {
widget.sync_depth();
}
}
}
/// The child must be sure that his parent reference is correct.
/// The child must remove the parent reference by himself: child.set_parent(None);
fn remove(&self, child: Id) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if let Some(index) = comp.children.iter().position(|x| x == &child) {
comp.children.remove(index);
if comp.onchildremove.is_some() {
let _ = comp.onchildremove.get().try_send(child);
}
if let Some(widget) = comp.canvas.as_ref() {
widget.sync_depth();
}
}
}
fn children_bounds(&self) -> ChildBounds {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if comp.children.is_empty() {
comp.children_bounds.x = 0.0;
comp.children_bounds.y = 0.0;
comp.children_bounds.w = 0.0;
comp.children_bounds.h = 0.0;
comp.children_bounds.x_local = 0.0;
comp.children_bounds.y_local = 0.0;
return comp.children_bounds;
} //no children
let mut current_x: f32 = 0.0;
let mut current_y: f32 = 0.0;
let mut current_r: f32 = 0.0;
let mut current_b: f32 = 0.0;
let mut real_x: f32 = 0.0;
let mut real_y: f32 = 0.0;
// for child in comp.children.iter() {
// if let Some(widget) = child.widget() {
// current_x = widget.x_local().min(current_x);
// current_y = widget.y_local().min(current_y);
// current_r = current_r.max(widget.x_local() + widget.w());
// current_b = current_b.max(widget.y_local() + widget.h());
// real_x = widget.x().min(real_x);
// real_y = widget.y().min(real_y);
// }
// } //child in children
comp.children_bounds.x_local = current_x;
comp.children_bounds.y_local = current_y;
comp.children_bounds.x = real_x;
comp.children_bounds.y = real_y;
comp.children_bounds.w = current_r;
comp.children_bounds.h = current_b;
comp.children_bounds
}
fn render(&self) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if comp.renderable && comp.onrender.is_some() {
let _ = comp.onrender.get().try_send(());
}
// for child in comp.children.iter() {
// if let Some(widget) = child.widget() {
// widget.render();
// }
// }
}
fn keyup(&self, e: &mut KeyEvent) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if comp.onkeyup.is_some() {
let _ = comp.onkeyup.get().try_send(e.clone());
}
// if e.bubble {
// if let Some(parent) = comp.parent {
// if let Some(widget) = parent.widget() {
// if let Some(canvas) = comp.canvas.as_ref() {
// if canvas.id() != widget.id() && canvas.id() != self.id() {
// widget.keyup(e);
// }
// }
// }
// }
// }
}
fn keydown(&self, e: &mut KeyEvent) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if comp.onkeydown.is_some() {
let _ = comp.onkeydown.get().try_send(e.clone());
}
// if e.bubble {
// if let Some(parent) = comp.parent {
// if let Some(widget) = parent.widget() {
// if let Some(canvas) = comp.canvas.as_ref() {
// if canvas.id() != widget.id() && canvas.id() != self.id() {
// widget.keydown(e);
// }
// }
// }
// }
// }
}
fn textinput(&self, e: &mut TextEvent) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if comp.ontextinput.is_some() {
let _ = comp.ontextinput.get().try_send(e.clone());
}
// if e.bubble {
// if let Some(parent) = comp.parent {
// if let Some(widget) = parent.widget() {
// if let Some(canvas) = comp.canvas.as_ref() {
// if canvas.id() != widget.id() && canvas.id() != self.id() {
// widget.textinput(e);
// }
// }
// }
// }
// }
}
fn mousemove(&self, e: &mut MouseEvent) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if comp.onmousemove.is_some() {
let _ = comp.onmousemove.get().try_send(e.clone());
}
// if e.bubble {
// if let Some(parent) = comp.parent {
// if let Some(widget) = parent.widget() {
// if let Some(canvas) = comp.canvas.as_ref() {
// if canvas.id() != widget.id() && canvas.id() != self.id() {
// widget.mousemove(e);
// }
// }
// }
// }
// }
}
fn mouseup(&self, e: &mut MouseEvent) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if comp.onmouseup.is_some() {
let _ = comp.onmouseup.get().try_send(e.clone());
}
// if e.bubble {
// if let Some(parent) = comp.parent {
// if let Some(widget) = parent.widget() {
// if let Some(canvas) = comp.canvas.as_ref() {
// if canvas.id() != widget.id() && canvas.id() != self.id() {
// widget.mouseup(e);
// }
// }
// }
// }
// }
}
fn mousewheel(&self, e: &mut MouseEvent) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if comp.onmousewheel.is_some() {
let _ = comp.onmousewheel.get().try_send(e.clone());
}
// if e.bubble {
// if let Some(parent) = comp.parent {
// if let Some(widget) = parent.widget() {
// if let Some(canvas) = comp.canvas.as_ref() {
// if canvas.id() != widget.id() && canvas.id() != self.id() {
// widget.mousewheel(e);
// }
// }
// }
// }
// }
}
fn mousedown(&self, e: &mut MouseEvent) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if comp.onmousedown.is_some() {
let _ = comp.onmousedown.get().try_send(e.clone());
}
// if e.bubble {
// if let Some(parent) = comp.parent {
// if let Some(widget) = parent.widget() {
// if let Some(canvas) = comp.canvas.as_ref() {
// if canvas.id() != widget.id() && canvas.id() != self.id() {
// widget.mousedown(e);
// }
// }
// }
// }
// }
}
fn mouseenter(&self, e: &mut MouseEvent) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if comp.onmouseenter.is_some() {
let _ = comp.onmouseenter.get().try_send(e.clone());
}
comp.ishovered = true;
}
fn mouseleave(&self, e: &mut MouseEvent) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if comp.onmouseleave.is_some() {
let _ = comp.onmouseleave.get().try_send(e.clone());
}
comp.ishovered = false;
}
fn destroy_children(&self) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
while let Some(child) = comp.children.pop() {
// if let Some(widget) = child.widget() {
// widget.destroy();
// }
}
}
fn destroy(&self) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"attempt to destroy control twice `$self` ($name)"
);
self.unmark();
self.unfocus();
self.uncapture();
self.destroy_children();
if let Some(clip) = comp.clip {
// clip.widget().map(|x| x.onbounds.remove(self.onclipchanged()));
todo!()
}
if let Some(parent) = comp.parent {
// if let Some(widget) = parent.widget() {
// widget.remove(self.id());
// self.set_parent(None);
// }
}
if comp.ondestroy.is_some() {
let _ = comp.ondestroy.get().try_send(());
}
comp.user = None;
// comp.oncreate.clear();
// comp.onrender.clear();
// comp.onbounds.clear();
// comp.ondestroy.clear();
// comp.onvisible.clear();
// comp.ondepth.clear();
// comp.onclip.clear();
// comp.onchildadd.clear();
// comp.onchildremove.clear();
// comp.onmousedown.clear();
// comp.onmouseup.clear();
// comp.onmousemove.clear();
// comp.onmousewheel.clear();
// comp.onmouseleave.clear();
// comp.onmouseenter.clear();
// comp.onkeydown.clear();
// comp.onkeyup.clear();
// comp.ontextinput.clear();
// comp.onfocused.clear();
// comp.onmarked.clear();
// comp.oncaptured.clear();
comp.destroyed = true;
}
fn update(&self, dt: f32) {
log::info!("Update Default Element Impl");
let comp = self.as_ref().borrow();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
}
fn focus(&self) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if let Some(canvas) = comp.canvas.as_ref() {
if canvas.id() == self.id() {
return;
}
}
let pre = if let Some(canvas) = comp.canvas.as_ref() {
canvas.focused == Some(self.id())
} else {
false
};
if let Some(canvas) = comp.canvas.as_mut() {
canvas.focused = Some(self.id());
}
if !pre && comp.onfocused.is_some() {
let _ = comp.onfocused.get().try_send(true);
}
}
fn unfocus(&self) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if let Some(canvas) = comp.canvas.as_ref() {
if canvas.id() == self.id() {
return;
}
}
if let Some(canvas) = comp.canvas.as_mut() {
if let Some(focused) = canvas.focused {
if focused == self.id() {
canvas.focused = None;
if comp.onfocused.is_some() {
let _ = comp.onfocused.get().try_send(false);
}
}
}
}
}
fn capture(&self) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if let Some(canvas) = comp.canvas.as_ref() {
if canvas.id() == self.id() {
return;
}
}
let pre = if let Some(canvas) = comp.canvas.as_ref() {
if let Some(captured) = canvas.captured {
captured == self.id()
} else {
false
}
} else {
false
};
if let Some(canvas) = comp.canvas.as_mut() {
canvas.captured = Some(self.id());
}
if !pre && comp.oncaptured.is_some() {
let _ = comp.oncaptured.get().try_send(true);
}
}
fn uncapture(&self) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if let Some(canvas) = comp.canvas.as_mut() {
if canvas.id() == self.id() {
return;
}
if let Some(captured) = canvas.captured {
if captured == self.id() {
canvas.captured = None;
if comp.oncaptured.is_some() {
let _ = comp.oncaptured.get().try_send(false);
}
}
}
}
}
fn mark(&self) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if let Some(canvas) = comp.canvas.as_ref() {
if canvas.id() == self.id() {
return;
}
}
let pre = if let Some(ref canvas) = comp.canvas.as_ref() {
if let Some(marked) = canvas.marked {
marked == self.id()
} else {
false
}
} else {
false
};
if let Some(ref mut canvas) = comp.canvas.as_mut() {
canvas.marked = Some(self.id());
}
if !pre && comp.onmarked.is_some() {
let _ = comp.onmarked.get().try_send(true);
}
}
fn unmark(&self) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if let Some(canvas) = comp.canvas.as_mut() {
if canvas.id() == self.id() {
return;
}
if let Some(marked) = canvas.marked {
if marked == self.id() {
canvas.marked = None;
if comp.onmarked.is_some() {
let _ = comp.onmarked.get().try_send(false);
}
}
}
}
}
fn refresh_bounds(&self) {
let mut comp = self.as_ref().borrow_mut();
if comp.onbounds.is_some() {
let _ = comp.onbounds.get().try_send(());
}
// for child in comp.children.iter() {
// if let Some(widget) = child.widget() {
// widget.refresh_bounds();
// }
// }
}
// _dx: f32 =0.0, _dy: f32 =0.0, _dw: f32 =0.0, _dh: f32 =0.0
fn bounds_changed(&self, dx: f32, dy: f32, dw: f32, dh: f32) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
if comp.updating {
return;
}
// manual relayout of childs
// we dont need it more coz we use flexbox
// if dx != 0.0 || dy != 0.0 {
// for child in comp.children.iter() {
// if let Some(widget) = child.widget() {
// widget.set_pos(widget.x() + dx, widget.y() + dy);
// }
// }
// }
if comp.onbounds.is_some() {
let _ = comp.onbounds.get().try_send(());
}
}
//Properties
//Spatial properties
fn set_pos(&self, x: f32, y: f32) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
comp.updating = true;
let dx = x - comp.x;
let dy = y - comp.y;
comp.x = x;
comp.y = y;
comp.updating = false;
self.bounds_changed(dx, dy, 0.0, 0.0);
}
fn set_size(&self, w: f32, h: f32) {
log::info!("Set Size Default Impl {}x{}", w, h);
let (dw, dh) = {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
comp.updating = true;
let dw = w - comp.w;
let dh = h - comp.h;
comp.w = w;
comp.h = h;
comp.updating = false;
(dw, dh)
};
self.bounds_changed(0.0, 0.0, dw, dh);
}
#[inline]
fn destroyed(&self) -> bool {
let comp = self.as_ref().borrow();
comp.destroyed
}
#[inline]
fn right(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.x + comp.w
}
#[inline]
fn bottom(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.y + comp.h
}
/// The x position of the control bounds, world coordinate
fn x(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.x
}
/// The x position of the control bounds, world coordinate
fn set_x(&self, x: f32) {
let mut comp = self.as_ref().borrow_mut();
let dx = x - self.x();
comp.x = x;
if !comp.ignore_spatial {
comp.ignore_spatial = true;
match comp.parent {
Some(parent) => {
// if let Some(widget) = parent.widget() {
// comp.x_local = comp.x - widget.x(); // TODO: direct or with setter
// }
}
None => {
comp.x_local = comp.x; // TODO: direct or with setter
}
}
comp.ignore_spatial = false;
}
self.bounds_changed(dx, 0.0, 0.0, 0.0);
}
/// The y position of the control bounds, world coordinate
fn y(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.y
}
/// The y position of the control bounds, world coordinate
fn set_y(&self, y: f32) {
let mut comp = self.as_ref().borrow_mut();
let dy = y - comp.y;
comp.y = y;
if !comp.ignore_spatial {
comp.ignore_spatial = true;
match comp.parent {
Some(parent) => {
// if let Some(widget) = parent.widget() {
// comp.y_local = comp.y - widget.y(); // TODO: direct or with setter
// }
}
None => {
comp.y_local = comp.y; // TODO: direct or with setter
}
}
comp.ignore_spatial = false;
}
self.bounds_changed(0.0, dy, 0.0, 0.0);
}
/// The minimum width
fn w_min(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.w_min
}
/// The minimum width
fn set_w_min(&self, w_min: f32) {
let mut comp = self.as_ref().borrow_mut();
comp.w_min = w_min;
if comp.w < comp.w_min {
comp.w = comp.w_min;
}
}
/// The minimum height
fn h_min(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.h_min
}
/// The minimum height
fn set_h_min(&self, h_min: f32) {
let mut comp = self.as_ref().borrow_mut();
comp.h_min = h_min;
if comp.h < comp.h_min {
comp.h = comp.h_min;
}
}
/// The maximum width
fn w_max(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.w_max
}
/// The maximum width
fn set_w_max(&self, w_max: f32) {
let mut comp = self.as_ref().borrow_mut();
comp.w_max = w_max;
if comp.w > comp.w_max {
comp.w = comp.w_max;
}
}
/// The maximum height
fn h_max(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.h_max
}
/// The maximum height
fn set_h_max(&self, _h_max: f32) {
let mut comp = self.as_ref().borrow_mut();
comp.h_max = _h_max;
if comp.h > comp.h_max {
comp.h = comp.h_max;
}
}
/// The width of the control bounds
fn w(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.w
}
/// The width of the control bounds
fn set_w(&self, w: f32) {
// log::info!("Set Width Deault Impl {}", w);
let dw = {
let mut comp = self.as_ref().borrow_mut();
let mut w = if w < comp.w_min { comp.w_min } else { w };
w = if w > comp.w_max && comp.w_max != 0.0 {
comp.w_max
} else {
w
};
let dw = w - comp.w;
comp.w = w;
dw
};
self.bounds_changed(0.0, 0.0, dw, 0.0);
}
/// The height of the control bounds
fn h(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.h
}
/// The height of the control bounds
fn set_h(&self, h: f32) {
// log::info!("Set Height Deault Impl {}", h);
let dh = {
let mut comp = self.as_ref().borrow_mut();
let mut h = if h < comp.h_min { comp.h_min } else { h };
h = if h > comp.h_max && comp.h_max != 0.0 {
comp.h_max
} else {
h
};
let dh = h - comp.h;
comp.h = h;
dh
};
self.bounds_changed(0.0, 0.0, 0.0, dh);
}
/// The x position of the control bounds, relative to its container
fn set_x_local(&self, x: f32) {
let mut comp = self.as_ref().borrow_mut();
comp.x_local = x;
if !comp.ignore_spatial {
comp.ignore_spatial = true;
match comp.parent {
Some(parent) => {
// if let Some(widget) = parent.widget() {
// comp.x = widget.x() + comp.x_local;
// }
}
None => {
comp.x = comp.x_local;
}
}
comp.ignore_spatial = false;
}
}
/// The y position of the control bounds, relative to its container
fn set_y_local(&self, y: f32) {
let mut comp = self.as_ref().borrow_mut();
comp.y_local = y;
if !comp.ignore_spatial {
comp.ignore_spatial = true;
match comp.parent {
Some(parent) => {
// if let Some(widget) = parent.widget() {
// comp.y = widget.y() + comp.y_local;
// }
}
None => {
comp.y = comp.y_local;
}
}
comp.ignore_spatial = false;
}
}
/// The x position of the control bounds, relative to its container
fn x_local(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.x_local
}
/// The y position of the control bounds, relative to its container
fn y_local(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.y_local
}
//Node properties
#[inline]
fn nodes(&self) -> i32 {
let comp = self.as_ref().borrow();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
let mut nodes = 1;
// for child in comp.children.iter() {
// if let Some(widget) = child.widget() {
// nodes += widget.nodes();
// }
// }
nodes
}
#[inline]
fn is_focused(&self) -> bool {
let comp = self.as_ref().borrow();
comp.isfocused
}
fn set_focused(&self, focused: bool) {
let mut comp = self.as_ref().borrow_mut();
comp.isfocused = focused;
}
#[inline]
fn is_captured(&self) -> bool {
let comp = self.as_ref().borrow();
comp.iscaptured
}
fn set_captured(&self, captured: bool) {
let mut comp = self.as_ref().borrow_mut();
comp.iscaptured = captured;
}
#[inline]
fn is_marked(&self) -> bool {
let comp = self.as_ref().borrow();
comp.ismarked
}
fn set_marked(&self, marked: bool) {
let mut comp = self.as_ref().borrow_mut();
comp.ismarked = marked
}
//Depth properties
#[inline]
fn depth_offset(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.depth_offset
}
//the depth of this control
#[inline]
fn depth(&self) -> f32 {
let comp = self.as_ref().borrow();
comp.depth
}
//the depth of this control
fn set_depth(&self, depth: f32) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
comp.depth = depth;
if comp.ondepth.is_some() {
let depth = comp.depth;
let _ = comp.ondepth.get().try_send(depth);
}
}
#[inline]
fn mouse_input(&self) -> bool {
let comp = self.as_ref().borrow();
comp.mouse_input
}
#[inline]
fn key_input(&self) -> bool {
let comp = self.as_ref().borrow();
comp.key_input
}
//Parent properties
#[inline]
//the parent control, None if no parent
fn parent(&self) -> Option<&dyn Element> {
// let comp = self.as_ref().borrow();
// comp.parent
todo!()
}
//the parent control, None if no parent
fn set_parent(&self, p: Option<Id>) {
let mut comp = self.as_ref().borrow_mut();
assert!(
!comp.destroyed,
"Widget was already destroyed but is being interacted with"
);
//do stuff with old parent
comp.parent = p;
if let Some(parent) = comp.parent {
// if let Some(widget) = parent.widget() {
// comp.ignore_spatial = true;
// comp.x = widget.x() + comp.x_local;
// comp.y = widget.y() + comp.y_local;
// comp.ignore_spatial = false;
// }
}
}
#[inline]
//the parent control, None if no parent
fn id(&self) -> Id {
let comp = self.as_ref().borrow();
comp.id
}
// NEW API
fn node(&self) -> Option<Node> {
None
}
// you should get node layout from LayoutSystem
// and update component properties and call relayout method on childs
fn relayout(&self, origin: Point2<f32>) {}
}
impl PartialEq for dyn Element {
fn eq(&self, other: &Self) -> bool {
self.id() == other.id()
}
}