From 30b5a3c67f640563460dc5d61e11d24721d66a11 Mon Sep 17 00:00:00 2001
From: Philipp Gesang <phg@phi-gamma.net>
Date: Thu, 18 Aug 2022 22:39:39 +0200
Subject: edit: make selection on click actually work
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Funneled into the ``Edit`` component via globals which seems to
be the only (?) way of propagating these things between elements
that don’t have one another in scope.
---
 src/edit.rs | 34 ++++++++++++++++++++++++++--------
 1 file changed, 26 insertions(+), 8 deletions(-)

diff --git a/src/edit.rs b/src/edit.rs
index 2192f2c..af91c26 100644
--- a/src/edit.rs
+++ b/src/edit.rs
@@ -11,11 +11,11 @@ slint::slint! {
 
     export global Aux := {
         property<int> selected: 0;
+        callback select(int);
         callback format-rgb-hex(color) -> string;
         callback format-rgb-component(int) -> string;
         callback color-of-rgb-component(string, int) -> color;
         callback component-of-rgb(string, color) -> int;
-        callback selected-color() -> color;
     }
 
     Colors := Rectangle {
@@ -42,7 +42,7 @@ slint::slint! {
                 forward-focus: pval;
 
                 ptouch := TouchArea {
-                    clicked => { Aux.selected = base + i; }
+                    clicked => { Aux.select(base + i); }
                 }
 
                 prect := Rectangle {
@@ -104,9 +104,9 @@ slint::slint! {
         callback update (color);
         update (col) => {
             debug("edit > update");
-            //red.val   = col.red();
-            //green.val = col.green();
-            //blue.val  = col.blue();
+            red.val   = Aux.component-of-rgb("r", col);
+            green.val = Aux.component-of-rgb("g", col);
+            blue.val  = Aux.component-of-rgb("b", col);
         }
 
         VerticalBox {
@@ -127,6 +127,8 @@ slint::slint! {
         set-primary   (colors) => { primary-colors  .colors = colors; }
         set-secondary (colors) => { secondary-colors.colors = colors; }
 
+        callback get-palette-color(int) -> color;
+        callback update-edit <=> edit.update;
         callback user-quit();
 
         key-inputs := FocusScope {
@@ -168,6 +170,11 @@ slint::slint! {
             }
         }
 
+        get-palette-color (i) => {
+            i < 8 ? primary-colors.colors   [i]
+                  : secondary-colors.colors [i - 8]
+        }
+
         master := VerticalBox {
             alignment: start;
 
@@ -176,17 +183,17 @@ slint::slint! {
             callback select-other-row();
 
             select-prev () => {
-                Aux.selected = Aux.selected == 0 ? 15 : Aux.selected - 1;
+                Aux.select (Aux.selected == 0 ? 15 : Aux.selected - 1);
                 debug ("selected previous, now", Aux.selected);
             }
 
             select-next () => {
-                Aux.selected = mod (Aux.selected + 1, 16);
+                Aux.select (mod (Aux.selected + 1, 16));
                 debug ("selected next, now", Aux.selected);
             }
 
             select-other-row () => {
-                Aux.selected = mod (Aux.selected + 8, 16);
+                Aux.select (mod (Aux.selected + 8, 16));
                 debug ("selected row above/below, now", Aux.selected);
             }
 
@@ -252,6 +259,17 @@ impl Edit
             std::process::exit(0);
         });
 
+        {
+            let guiw = gui.as_weak();
+            let npal = pal.len();
+            gui.global::<Aux>().on_select(move |i: i32| {
+                let i = (i as usize % npal) as i32;
+                guiw.unwrap().global::<Aux>().set_selected(i);
+                let col = guiw.unwrap().invoke_get_palette_color(i);
+                guiw.unwrap().invoke_update_edit(col);
+            });
+        }
+
         gui.global::<Aux>().on_format_rgb_hex(|col| {
             let x = (col.red() as u32) << 2
                 | (col.green() as u32) << 1
-- 
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