stability improvenments

backend.c

@@ -13,8 +13,8 @@ extern unsigned int settings;
 extern unsigned int file_modifiers;
 extern unsigned int color_count;
 extern unsigned int terminal_height;
+extern volatile unsigned long selected_file_current;
 extern color *colors;
-unsigned long file_offset;
 int (*order_func)() = sort_natural;
 
 
@@ -56,13 +56,14 @@ void get_dir_content(char *path, unsigned long *dir_file_count, file *dir_conten
 		scandir(path, &entry, skip_hidden_files, alphasort);
 	}
 	
-
 	unsigned long i = 0;
 	for (i = 0; i < *dir_file_count; i++ ) { 
 		if (entry[i]->d_name[0] == '.' && !(file_modifiers & FILE_MODIFIERS_HIDDEN_FILES)) {
 		} else {
-			dir_content[i].file_name = malloc(strlen(entry[i]->d_name));
+			dir_content[i].file_name = malloc(strlen(entry[i]->d_name)+1);
 			strcpy(dir_content[i].file_name, entry[i]->d_name);
+			dir_content[i].file_name[strlen(entry[i]->d_name)] = '\0';
+
 			
 			struct stat *file;
 			file = malloc(sizeof(struct stat));
@@ -159,12 +160,22 @@ void print_dir(WINDOW *win, char print_info, unsigned long *dir_file_count, file
 	char is_selected = 0;
 	static const char sizes[6] = { 'B', 'K', 'M', 'G', 'T', 'P' };
 
+	unsigned long offset_vertical = 0;
 	unsigned long offset_back = 0;
 	unsigned long offset_front = 2;
-	if (*dir_file_count > 9) {
-		offset_front = (snprintf(NULL, 0, "%ld", *dir_file_count)) + 1;
+	if (print_info) {
+		if (*dir_file_count > 9) {
+			offset_front = (snprintf(NULL, 0, "%ld", *dir_file_count)) + 1;
+		}
+		if (selected_file_current > (terminal_height/3)*2) {
+			if (selected_file_current + (terminal_height/3) >= *dir_file_count) {
+				offset_vertical = *dir_file_count - terminal_height+2;
+			} else {
+				offset_vertical = selected_file_current - (terminal_height/3)*2;
+			}
+		}
 	}
-	for (i = file_offset; i < *dir_file_count && i < terminal_height; i++) {
+	for (i = offset_vertical; i < *dir_file_count && i < (terminal_height + offset_vertical); i++) {
 		if (print_info) {
 			file_size = dir_content[i].file_size;
 			char size_index = 0;
@@ -192,7 +203,6 @@ void print_dir(WINDOW *win, char print_info, unsigned long *dir_file_count, file
 			is_selected = 0;
 		}
 
-		mvwaddnstr(win, i, 0, bg, offset_front+is_selected);
 		if (dir_content[i].status & FILE_STATUS_SELECTED) {
 			wattron(win, COLOR_PAIR(8));
 		} else {
@@ -213,7 +223,7 @@ void print_dir(WINDOW *win, char print_info, unsigned long *dir_file_count, file
 			if (extension) {
 				int char_offset = (file_name_width + offset_front + is_selected) - (offset_back - 1) ;
 				if ((file_name_width - char_offset - strlen(extension) - 1) > 1) {
-					file_name = malloc(file_name_width - char_offset);
+					file_name = malloc(file_name_width - char_offset + 1);
 					memcpy(file_name, dir_content[i].file_name, file_name_width - char_offset);
 					memcpy(file_name + (file_name_width - char_offset - strlen(extension)), extension, strlen(extension));
 					file_name[file_name_width - char_offset - strlen(extension) - 1] = '~';
@@ -236,21 +246,21 @@ void print_dir(WINDOW *win, char print_info, unsigned long *dir_file_count, file
 			file_name[file_name_width] = '\0';
 		}
 
-		mvwaddstr(win, i, 0, bg);
+		mvwaddstr(win, i-offset_vertical, 0, bg);
+			mvwaddnstr(win, i-offset_vertical, offset_front+is_selected, file_name, line_width-offset_front-is_selected-2);
 		if(print_info) {
-			mvwprintw(win, i, 0, "%ld", i);
-			mvwaddnstr(win, i, offset_front+is_selected, file_name, line_width-offset_front-is_selected-2);
+			mvwprintw(win, i-offset_vertical, 0, "%ld", i);
 			free(file_name);
 
 			if (dir_content[i].file_type == FILE_TYPE_DIR || dir_content[i].file_type == FILE_TYPE_SYMLINK) {
-				mvwprintw(win, i, offset_back, "%ld", dir_content[i].file_size);
+				mvwprintw(win, i-offset_vertical, offset_back, "%ld", dir_content[i].file_size);
 			}else if (size_char =='B') {
-				mvwprintw(win, i, offset_back, "%0.0lf %c", printed_size, size_char);
+				mvwprintw(win, i-offset_vertical, offset_back, "%0.0lf %c", printed_size, size_char);
 			} else {
-				mvwprintw(win, i, offset_back, "%0.2lf %c", printed_size, size_char);
+				mvwprintw(win, i-offset_vertical, offset_back, "%0.2lf %c", printed_size, size_char);
 			}
 		} else {
-			mvwaddnstr(win, i, 0, file_name, line_width);
+			mvwaddnstr(win, i-offset_vertical, 0, file_name, line_width);
 			free(file_name);
 		}
 

interactions.c

@@ -272,7 +272,6 @@ void move_right(){
 			}
 		}
 		free(mime);
-		free(extension);
 	}
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK | STATUS_RELOAD_DIRECTORY);
 }

threading.c

@@ -102,8 +102,8 @@ void *thread_mid(void *data){
 			mid_content[selected_file_last].status &= ~FILE_STATUS_HOVER;
 		}
 		selected_file_last = selected_file_current;
-		free(file_current->file_name);
 
+		free(file_current->file_name);
 		file_current->file_name = malloc(strlen(mid_content[selected_file_current].file_name));
 		strcpy(file_current->file_name, mid_content[selected_file_current].file_name);
 		file_current->file_size = mid_content[selected_file_current].file_size;