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work on div sliders, major changes

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* Ids are now keyed based on the parent's id, this means that an element can have
  the same label when placed in different divs
* Divs now enable the scissor test, this way the elements cannot draw outside of
  the parent div bounds
* Introduced a LAYOUT_ABSOLUTE that disables all layout logic, for internal use
* Divs now draw scrollbars using the slider_hor and slider_ver elements
This commit is contained in:
Alessandro Mauri 2024-12-18 20:04:23 +01:00
parent 499f6dc79b
commit a481269022
8 changed files with 86 additions and 121 deletions
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14
src/ugui_button.c3
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@ -8,27 +8,19 @@ struct ElemButton {
bool active;
}
const Elem BUTTON_DEFAULTS = {
.type = ETYPE_BUTTON,
.button = {
.color = uint_to_rgba(0x0000ffff),
},
};
// draw a button, return the events on that button
fn ElemEvents! Ctx.button(&ctx, String label, Rect size, bool state = false)
{
Id id = label.hash();
Id id = ctx.gen_id(label)!;
Elem *parent = ctx.get_parent()!;
Elem *c_elem = ctx.get_elem(id)!;
// add it to the tree
ctx.tree.add(id, ctx.active_div)!;
bool needs_layout = c_elem.flags.is_new || parent.flags.updated;
if (c_elem.flags.is_new) {
*c_elem = BUTTON_DEFAULTS;
c_elem.type = ETYPE_BUTTON;
c_elem.button.color = uint_to_rgba(0x0000ffff);
} else if (c_elem.type != ETYPE_BUTTON) {
return UgError.WRONG_ELEMENT_TYPE?;
}