From 1febc424a2083cace25bf09b731f50d7a49d8e51 Mon Sep 17 00:00:00 2001
From: WanderingPenwing <nicolas.pinson31@gmail.com>
Date: Sat, 27 Jul 2024 23:17:42 +0200
Subject: [PATCH] fixed project mode crash

---
 src/core/ui.rs             | 12 +++++++++++-
 src/panels/project_mode.rs | 20 ++------------------
 2 files changed, 13 insertions(+), 19 deletions(-)

diff --git a/src/core/ui.rs b/src/core/ui.rs
index 2c7899f..77fd314 100644
--- a/src/core/ui.rs
+++ b/src/core/ui.rs
@@ -1,7 +1,7 @@
 use eframe::egui;
 use egui::{text::CCursor, text_edit::CCursorRange, Rangef};
 use egui_extras::{Size, StripBuilder};
-use std::{cmp::max, env, ffi::OsStr, path::Component, path::Path, path::PathBuf};
+use std::{cmp::max, cmp::min, env, ffi::OsStr, path::Component, path::Path, path::PathBuf};
 
 use crate::core;
 use crate::editor;
@@ -375,6 +375,16 @@ impl Calcifer {
 			.update_from_code(current_tab.code.clone());
 		panels::draw_project(ui, self.theme, &mut self.project_content);
 		
+		self.project_content.selected_item.category = min(self.project_content.categories.len() - 2, self.project_content.selected_item.category);
+		while self.project_content.categories[self.project_content.selected_item.category].content.is_empty() && self.project_content.selected_item.category > 0 {
+			self.project_content.selected_item.category -= 1;
+		}
+		if !self.project_content.categories[self.project_content.selected_item.category].content.is_empty() {
+			self.project_content.selected_item.row = min(self.project_content.categories[self.project_content.selected_item.category].content.len() - 1, self.project_content.selected_item.row);
+		} else {
+			self.project_content.selected_item.row = 0;
+		}	
+		
 		if self.project_content.item_window.visible {
 			if self.project_content.categories.len() > 1
 				&& !self.project_content.categories[self.project_content.selected_item.category]
diff --git a/src/panels/project_mode.rs b/src/panels/project_mode.rs
index 3a6b304..0c1cfeb 100644
--- a/src/panels/project_mode.rs
+++ b/src/panels/project_mode.rs
@@ -1,7 +1,6 @@
 use eframe::egui;
 use serde::{Deserialize, Serialize};
 use std::{
-	cmp::min,
 	cmp::max,
 	sync::atomic::{AtomicUsize, Ordering},
 };
@@ -178,13 +177,6 @@ pub fn draw_project(ui: &mut egui::Ui, theme: ColorTheme, project: &mut Project)
 					.content
 					.push(Item::new("item"));
 			}
-			//			if category.name != "+" {
-			//				if ui.add(egui::Button::new("+")).clicked() {
-			//					project.categories[category_index]
-			//						.content
-			//						.push(Item::new("item"));
-			//				}
-			//			}
 		}
 	});
 
@@ -238,23 +230,15 @@ pub fn draw_project(ui: &mut egui::Ui, theme: ColorTheme, project: &mut Project)
 		&& project.selected_item.category > 0
 	{
 		moved = true;
-		if !project.was_moving {
+		if !project.was_moving && project.categories[category - 1].content.len() > 0 {
 			project.selected_item.category -= 1;
-			project.selected_item.row = min(
-				project.categories[category].content.len() - 1,
-				project.selected_item.row,
-			);
 		}
 	} else if ui.input(|i| i.key_pressed(egui::Key::ArrowRight))
 		&& project.selected_item.category < project.categories.len() - 2
 	{
 		moved = true;
-		if !project.was_moving {
+		if !project.was_moving && project.categories[category + 1].content.len() > 0 {
 			project.selected_item.category += 1;
-			project.selected_item.row = min(
-				project.categories[category].content.len() - 1,
-				project.selected_item.row,
-			);
 		}
 	} else if ui.input(|i| i.key_pressed(egui::Key::ArrowUp)) && project.selected_item.row > 0 {
 		moved = true;