Add palette flag that prevents deleting

src/Tools/tim_tool/src/gui/main_tab.rs

@@ -26,16 +26,24 @@ impl MainTab {
         let vram_image = VRAMImage{
             img:        image,
             x:          0,
-            y:   0
+            y:          0,
+            is_palette: false,
         };
 
         self.vram_file_list.push(slint::StandardListViewItem::from(file_name.as_str()));
         self.vram_image_list.push(vram_image);
     }
 
-    pub fn remove_vram_file(&mut self, idx: usize) {
+    pub fn remove_vram_file(&mut self, idx: usize) -> bool {
+        if let Some(element) = self.vram_image_list.iter().skip(idx).next() {
+            if element.is_palette {
+                return false;
+            }
+        }
+
         self.vram_file_list.remove(idx);
         self.vram_image_list.remove(idx);
+        return true;
     }
 
     pub fn move_vram_image(&mut self, idx: usize, dx: i32, dy: i32) {

src/Tools/tim_tool/src/gui/mod.rs

@@ -16,7 +16,11 @@ pub const VRAM_HEIGHT:usize = 512;
 type MainWindowRef  = Rc<RefCell<MainWindow>>;
 type GUIElementsRef = Rc<RefCell<GUIElements>>;
 
-fn display_error(title: &str, text: &String) {
+pub fn display_information(title: impl Into<String>, text: impl Into<String>) {
+    MessageDialog::new().set_title(title).set_level(rfd::MessageLevel::Info).set_description(text).show();
+}
+
+pub fn display_error(title: impl Into<String>, text: impl Into<String>) {
     MessageDialog::new().set_title(title).set_level(rfd::MessageLevel::Error).set_description(text).show();
 }
 

src/Tools/tim_tool/src/main.rs

@@ -2,7 +2,7 @@
 #![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
 
 mod gui;
-use gui::{GUIElements, VRAM_WIDTH, VRAM_HEIGHT};
+use gui::{GUIElements, VRAM_WIDTH, VRAM_HEIGHT, display_information};
 use rfd::FileDialog;
 use std::{cell::RefCell, rc::Rc};
 use slint::SharedString;
@@ -33,7 +33,9 @@ fn setup_main_tab(gui_elements_ref: Rc<RefCell<GUIElements>>) {
 
     gui_elements.main_tab.on_remove_file(gui_elements_ref.clone(), move |main_tab, _main_window, idx| {
         if idx >= 0 {
-            main_tab.remove_vram_file(idx as usize);
+            if !main_tab.remove_vram_file(idx as usize) {
+                display_information("Removing VRAM file", "Can not remove palette. Delete image instead");
+            }
         }
     });
 }

src/Tools/tim_tool/ui/tab/main-tab.slint

@@ -5,6 +5,7 @@ struct VRAMImage {
     img:        image,
     x:          int,
     y:          int,
+    is_palette: bool,
 }
 
 export component MainTab inherits Rectangle {