UPDATE: Adds get/set views to the user model API (#69)

base/src/model.rs

@@ -118,6 +118,8 @@ pub struct Model {
     pub(crate) language: Language,
     /// The timezone used to evaluate the model
     pub(crate) tz: Tz,
+    /// The view id. A view consist of a selected sheet and ranges.
+    pub(crate) view_id: u32,
 }
 
 // FIXME: Maybe this should be the same as CellReference
@@ -886,6 +888,7 @@ impl Model {
             language,
             locale,
             tz,
+            view_id: 0,
         };
 
         model.parse_formulas();

base/src/new_empty.rs

@@ -15,7 +15,9 @@ use crate::{
     language::get_language,
     locale::get_locale,
     model::{get_milliseconds_since_epoch, Model, ParsedDefinedName},
-    types::{Metadata, Selection, SheetState, Workbook, WorkbookSettings, Worksheet},
+    types::{
+        Metadata, SheetState, Workbook, WorkbookSettings, WorkbookView, Worksheet, WorksheetView,
+    },
     utils::ParsedReference,
 };
 
@@ -35,7 +37,20 @@ fn is_valid_sheet_name(name: &str) -> bool {
 
 impl Model {
     /// Creates a new worksheet. Note that it does not check if the name or the sheet_id exists
-    fn new_empty_worksheet(name: &str, sheet_id: u32) -> Worksheet {
+    fn new_empty_worksheet(name: &str, sheet_id: u32, view_ids: &[&u32]) -> Worksheet {
+        let mut views = HashMap::new();
+        for id in view_ids {
+            views.insert(
+                **id,
+                WorksheetView {
+                    row: 1,
+                    column: 1,
+                    range: [1, 1, 1, 1],
+                    top_row: 1,
+                    left_column: 1,
+                },
+            );
+        }
         Worksheet {
             cols: vec![],
             rows: vec![],
@@ -50,12 +65,7 @@ impl Model {
             color: Default::default(),
             frozen_columns: 0,
             frozen_rows: 0,
-            selection: Selection {
-                is_selected: false,
-                row: 1,
-                column: 1,
-                range: [1, 1, 1, 1],
-            },
+            views,
         }
     }
 
@@ -130,7 +140,7 @@ impl Model {
         self.parsed_defined_names = parsed_defined_names;
     }
 
-    // Reparses all formulas and defined names
+    /// Reparses all formulas and defined names
     pub(crate) fn reset_parsed_structures(&mut self) {
         self.parser
             .set_worksheets(self.workbook.get_worksheet_names());
@@ -161,7 +171,8 @@ impl Model {
         let sheet_name = format!("{}{}", base_name, index);
         // Now we need a sheet_id
         let sheet_id = self.get_new_sheet_id();
-        let worksheet = Model::new_empty_worksheet(&sheet_name, sheet_id);
+        let view_ids: Vec<&u32> = self.workbook.views.keys().collect();
+        let worksheet = Model::new_empty_worksheet(&sheet_name, sheet_id, &view_ids);
         self.workbook.worksheets.push(worksheet);
         self.reset_parsed_structures();
         (sheet_name, self.workbook.worksheets.len() as u32 - 1)
@@ -192,7 +203,8 @@ impl Model {
             Some(id) => id,
             None => self.get_new_sheet_id(),
         };
-        let worksheet = Model::new_empty_worksheet(sheet_name, sheet_id);
+        let view_ids: Vec<&u32> = self.workbook.views.keys().collect();
+        let worksheet = Model::new_empty_worksheet(sheet_name, sheet_id, &view_ids);
         if sheet_index as usize > self.workbook.worksheets.len() {
             return Err("Sheet index out of range".to_string());
         }
@@ -339,11 +351,14 @@ impl Model {
         // "2020-08-06T21:20:53Z
         let now = dt.format("%Y-%m-%dT%H:%M:%SZ").to_string();
 
+        let mut views = HashMap::new();
+        views.insert(0, WorkbookView { sheet: 0 });
+
         // String versions of the locale are added here to simplify the serialize/deserialize logic
         let workbook = Workbook {
             shared_strings: vec![],
             defined_names: vec![],
-            worksheets: vec![Model::new_empty_worksheet("Sheet1", 1)],
+            worksheets: vec![Model::new_empty_worksheet("Sheet1", 1, &[&0])],
             styles: Default::default(),
             name: name.to_string(),
             settings: WorkbookSettings {
@@ -359,6 +374,7 @@ impl Model {
                 last_modified: now,
             },
             tables: HashMap::new(),
+            views,
         };
         let parsed_formulas = Vec::new();
         let worksheets = &workbook.worksheets;
@@ -379,6 +395,7 @@ impl Model {
             locale,
             language,
             tz,
+            view_id: 0,
         };
         model.parse_formulas();
         Ok(model)

base/src/test/user_model/mod.rs

@@ -8,3 +8,4 @@ mod test_row_column;
 mod test_styles;
 mod test_to_from_bytes;
 mod test_undo_redo;
+mod test_view;

base/src/test/user_model/test_view.rs

@@ -0,0 +1,216 @@
+#![allow(clippy::unwrap_used)]
+
+use std::collections::HashMap;
+
+use crate::{
+    constants::{LAST_COLUMN, LAST_ROW},
+    test::util::new_empty_model,
+    user_model::SelectedView,
+    UserModel,
+};
+
+#[test]
+fn initial_view() {
+    let model = new_empty_model();
+    let model = UserModel::from_model(model);
+    assert_eq!(model.get_selected_sheet(), 0);
+    assert_eq!(model.get_selected_cell(), (0, 1, 1));
+    assert_eq!(
+        model.get_selected_view(),
+        SelectedView {
+            sheet: 0,
+            row: 1,
+            column: 1,
+            range: [1, 1, 1, 1],
+            top_row: 1,
+            left_column: 1
+        }
+    );
+}
+
+#[test]
+fn set_the_cell_sets_the_range() {
+    let model = new_empty_model();
+    let mut model = UserModel::from_model(model);
+    model.set_selected_cell(5, 4).unwrap();
+    assert_eq!(model.get_selected_sheet(), 0);
+    assert_eq!(model.get_selected_cell(), (0, 5, 4));
+    assert_eq!(
+        model.get_selected_view(),
+        SelectedView {
+            sheet: 0,
+            row: 5,
+            column: 4,
+            range: [5, 4, 5, 4],
+            top_row: 1,
+            left_column: 1
+        }
+    );
+}
+
+#[test]
+fn set_the_range_does_not_set_the_cell() {
+    let model = new_empty_model();
+    let mut model = UserModel::from_model(model);
+    model.set_selected_range(5, 4, 10, 6).unwrap();
+    assert_eq!(model.get_selected_sheet(), 0);
+    assert_eq!(model.get_selected_cell(), (0, 1, 1));
+    assert_eq!(
+        model.get_selected_view(),
+        SelectedView {
+            sheet: 0,
+            row: 1,
+            column: 1,
+            range: [5, 4, 10, 6],
+            top_row: 1,
+            left_column: 1
+        }
+    );
+}
+
+#[test]
+fn add_new_sheet_and_back() {
+    let model = new_empty_model();
+    let mut model = UserModel::from_model(model);
+    model.new_sheet();
+    assert_eq!(model.get_selected_sheet(), 0);
+    model.set_selected_cell(5, 4).unwrap();
+    model.set_selected_sheet(1).unwrap();
+    assert_eq!(model.get_selected_cell(), (1, 1, 1));
+    model.set_selected_sheet(0).unwrap();
+    assert_eq!(model.get_selected_cell(), (0, 5, 4));
+}
+
+#[test]
+fn set_selected_cell_errors() {
+    let model = new_empty_model();
+    let mut model = UserModel::from_model(model);
+    assert_eq!(
+        model.set_selected_cell(-5, 4),
+        Err("Invalid row: '-5'".to_string())
+    );
+    assert_eq!(
+        model.set_selected_cell(5, -4),
+        Err("Invalid column: '-4'".to_string())
+    );
+    assert_eq!(
+        model.set_selected_range(-1, 1, 1, 1),
+        Err("Invalid row: '-1'".to_string())
+    );
+    assert_eq!(
+        model.set_selected_range(1, 0, 1, 1),
+        Err("Invalid column: '0'".to_string())
+    );
+    assert_eq!(
+        model.set_selected_range(1, 1, LAST_ROW + 1, 1),
+        Err("Invalid row: '1048577'".to_string())
+    );
+    assert_eq!(
+        model.set_selected_range(1, 1, 1, LAST_COLUMN + 1),
+        Err("Invalid column: '16385'".to_string())
+    );
+}
+
+#[test]
+fn set_selected_cell_errors_wrong_sheet() {
+    let mut model = new_empty_model();
+    // forcefully set a wrong index
+    model.workbook.views.get_mut(&0).unwrap().sheet = 2;
+    let mut model = UserModel::from_model(model);
+    // It's returning the wrong number
+    assert_eq!(model.get_selected_sheet(), 2);
+
+    // But we can't set the selected cell anymore
+    assert_eq!(
+        model.set_selected_cell(3, 4),
+        Err("Invalid worksheet index 2".to_string())
+    );
+    assert_eq!(
+        model.set_selected_range(3, 4, 5, 6),
+        Err("Invalid worksheet index 2".to_string())
+    );
+
+    assert_eq!(
+        model.set_top_left_visible_cell(3, 4),
+        Err("Invalid worksheet index 2".to_string())
+    );
+
+    // we can fix it by setting the right cell
+    model.set_selected_sheet(0).unwrap();
+    model.set_selected_cell(3, 4).unwrap();
+}
+
+#[test]
+fn set_visible_cell() {
+    let model = new_empty_model();
+    let mut model = UserModel::from_model(model);
+    model.set_top_left_visible_cell(100, 12).unwrap();
+
+    assert_eq!(
+        model.get_selected_view(),
+        SelectedView {
+            sheet: 0,
+            row: 1,
+            column: 1,
+            range: [1, 1, 1, 1],
+            top_row: 100,
+            left_column: 12
+        }
+    );
+
+    let s = serde_json::to_string(&model.get_selected_view()).unwrap();
+    assert_eq!(
+        serde_json::from_str::<SelectedView>(&s).unwrap(),
+        SelectedView {
+            sheet: 0,
+            row: 1,
+            column: 1,
+            range: [1, 1, 1, 1],
+            top_row: 100,
+            left_column: 12
+        }
+    );
+}
+
+#[test]
+fn set_visible_cell_errors() {
+    let model = new_empty_model();
+    let mut model = UserModel::from_model(model);
+    assert_eq!(
+        model.set_top_left_visible_cell(-100, 12),
+        Err("Invalid row: '-100'".to_string())
+    );
+    assert_eq!(
+        model.set_top_left_visible_cell(100, -12),
+        Err("Invalid column: '-12'".to_string())
+    );
+}
+
+#[test]
+fn errors_no_views() {
+    let mut model = new_empty_model();
+    // forcefully remove the view
+    model.workbook.views = HashMap::new();
+    // also in the sheet
+    model.workbook.worksheets[0].views = HashMap::new();
+    let mut model = UserModel::from_model(model);
+    // get methods will return defaults
+    assert_eq!(model.get_selected_sheet(), 0);
+    assert_eq!(model.get_selected_cell(), (0, 1, 1));
+    assert_eq!(
+        model.get_selected_view(),
+        SelectedView {
+            sheet: 0,
+            row: 1,
+            column: 1,
+            range: [1, 1, 1, 1],
+            top_row: 1,
+            left_column: 1
+        }
+    );
+
+    // set methods won't complain. but won't work either
+    model.set_selected_sheet(0).unwrap();
+    model.set_selected_cell(5, 6).unwrap();
+    assert_eq!(model.get_selected_cell(), (0, 1, 1));
+}

base/src/types.rs

@@ -27,6 +27,14 @@ pub struct WorkbookSettings {
     pub tz: String,
     pub locale: String,
 }
+
+/// A Workbook View tracks of the selected sheet for each view
+#[derive(Encode, Decode, Debug, PartialEq, Clone)]
+pub struct WorkbookView {
+    /// The index of the currently selected sheet.
+    pub sheet: u32,
+}
+
 /// An internal representation of an IronCalc Workbook
 #[derive(Encode, Decode, Debug, PartialEq, Clone)]
 pub struct Workbook {
@@ -38,6 +46,7 @@ pub struct Workbook {
     pub settings: WorkbookSettings,
     pub metadata: Metadata,
     pub tables: HashMap<String, Table>,
+    pub views: HashMap<u32, WorkbookView>,
 }
 
 /// A defined name. The `sheet_id` is the sheet index in case the name is local
@@ -48,9 +57,6 @@ pub struct DefinedName {
     pub sheet_id: Option<u32>,
 }
 
-// TODO: Move to worksheet.rs make frozen_rows/columns private and u32
-/// Internal representation of a worksheet Excel object
-
 /// * state:
 ///    18.18.68 ST_SheetState (Sheet Visibility Types)
 ///    hidden, veryHidden, visible
@@ -71,12 +77,21 @@ impl Display for SheetState {
     }
 }
 
+/// Represents the state of the worksheet as seen by the user. This includes
+/// details such as the currently selected cell, the visible range, and the
+/// position of the viewport.
 #[derive(Encode, Decode, Debug, PartialEq, Clone)]
-pub struct Selection {
-    pub is_selected: bool,
+pub struct WorksheetView {
+    /// The row index of the currently selected cell.
     pub row: i32,
+    /// The column index of the currently selected cell.
     pub column: i32,
+    /// The selected range in the worksheet, specified as [start_row, start_column, end_row, end_column].
     pub range: [i32; 4],
+    /// The row index of the topmost visible cell in the worksheet view.
+    pub top_row: i32,
+    /// The column index of the leftmost visible cell in the worksheet view.
+    pub left_column: i32,
 }
 
 /// Internal representation of a worksheet Excel object
@@ -95,7 +110,7 @@ pub struct Worksheet {
     pub comments: Vec<Comment>,
     pub frozen_rows: i32,
     pub frozen_columns: i32,
-    pub selection: Selection,
+    pub views: HashMap<u32, WorksheetView>,
 }
 
 /// Internal representation of Excel's sheet_data

base/src/user_model.rs

@@ -3,6 +3,7 @@
 use std::{collections::HashMap, fmt::Debug};
 
 use bitcode::{Decode, Encode};
+use serde::{Deserialize, Serialize};
 
 use crate::{
     constants,
@@ -18,6 +19,17 @@ use crate::{
     utils::is_valid_hex_color,
 };
 
+#[derive(Serialize, Deserialize)]
+#[cfg_attr(test, derive(PartialEq, Debug))]
+pub struct SelectedView {
+    pub sheet: u32,
+    pub row: i32,
+    pub column: i32,
+    pub range: [i32; 4],
+    pub top_row: i32,
+    pub left_column: i32,
+}
+
 #[derive(Clone, Encode, Decode)]
 struct RowData {
     row: Option<Row>,
@@ -118,6 +130,7 @@ enum Diff {
         old_value: String,
         new_value: String,
     },
+    // FIXME: we are missing SetViewDiffs
 }
 
 type DiffList = Vec<Diff>;
@@ -249,7 +262,7 @@ fn vertical(value: &str) -> Result<VerticalAlignment, String> {
 }
 
 /// # A wrapper around [`Model`] for a spreadsheet end user.
-/// UserModel is a wrapper around Model with undo/redo history, _diffs_ and automatic evaluation.
+/// UserModel is a wrapper around Model with undo/redo history, _diffs_, automatic evaluation and view management.
 ///
 /// A diff in this context (or more correctly a _user diff_) is a change created by a user.
 ///
@@ -935,6 +948,165 @@ impl UserModel {
         self.model.get_worksheets_properties()
     }
 
+    /// Returns the selected sheet index
+    pub fn get_selected_sheet(&self) -> u32 {
+        if let Some(view) = self.model.workbook.views.get(&self.model.view_id) {
+            view.sheet
+        } else {
+            0
+        }
+    }
+
+    /// Returns the selected cell
+    pub fn get_selected_cell(&self) -> (u32, i32, i32) {
+        let sheet = if let Some(view) = self.model.workbook.views.get(&self.model.view_id) {
+            view.sheet
+        } else {
+            0
+        };
+        if let Ok(worksheet) = self.model.workbook.worksheet(sheet) {
+            if let Some(view) = worksheet.views.get(&self.model.view_id) {
+                return (sheet, view.row, view.column);
+            }
+        }
+        // return a safe default
+        (0, 1, 1)
+    }
+
+    /// Returns selected view
+    pub fn get_selected_view(&self) -> SelectedView {
+        let sheet = if let Some(view) = self.model.workbook.views.get(&self.model.view_id) {
+            view.sheet
+        } else {
+            0
+        };
+        if let Ok(worksheet) = self.model.workbook.worksheet(sheet) {
+            if let Some(view) = worksheet.views.get(&self.model.view_id) {
+                return SelectedView {
+                    sheet,
+                    row: view.row,
+                    column: view.column,
+                    range: view.range,
+                    top_row: view.top_row,
+                    left_column: view.left_column,
+                };
+            }
+        }
+        // return a safe default
+        SelectedView {
+            sheet: 0,
+            row: 1,
+            column: 1,
+            range: [1, 1, 1, 1],
+            top_row: 1,
+            left_column: 1,
+        }
+    }
+
+    /// Sets the the selected sheet
+    pub fn set_selected_sheet(&mut self, sheet: u32) -> Result<(), String> {
+        if self.model.workbook.worksheet(sheet).is_err() {
+            return Err(format!("Invalid worksheet index {}", sheet));
+        }
+        if let Some(view) = self.model.workbook.views.get_mut(&0) {
+            view.sheet = sheet;
+        }
+        Ok(())
+    }
+
+    /// Sets the selected cell
+    pub fn set_selected_cell(&mut self, row: i32, column: i32) -> Result<(), String> {
+        let sheet = if let Some(view) = self.model.workbook.views.get(&self.model.view_id) {
+            view.sheet
+        } else {
+            0
+        };
+        if !is_valid_column_number(column) {
+            return Err(format!("Invalid column: '{column}'"));
+        }
+        if !is_valid_column_number(row) {
+            return Err(format!("Invalid row: '{row}'"));
+        }
+        if self.model.workbook.worksheet(sheet).is_err() {
+            return Err(format!("Invalid worksheet index {}", sheet));
+        }
+        if let Ok(worksheet) = self.model.workbook.worksheet_mut(sheet) {
+            if let Some(view) = worksheet.views.get_mut(&0) {
+                view.row = row;
+                view.column = column;
+                view.range = [row, column, row, column];
+            }
+        }
+        Ok(())
+    }
+
+    /// Sets the selected range
+    pub fn set_selected_range(
+        &mut self,
+        start_row: i32,
+        start_column: i32,
+        end_row: i32,
+        end_column: i32,
+    ) -> Result<(), String> {
+        let sheet = if let Some(view) = self.model.workbook.views.get(&self.model.view_id) {
+            view.sheet
+        } else {
+            0
+        };
+
+        if !is_valid_column_number(start_column) {
+            return Err(format!("Invalid column: '{start_column}'"));
+        }
+        if !is_valid_column_number(start_row) {
+            return Err(format!("Invalid row: '{start_row}'"));
+        }
+
+        if !is_valid_column_number(end_column) {
+            return Err(format!("Invalid column: '{end_column}'"));
+        }
+        if !is_valid_column_number(end_row) {
+            return Err(format!("Invalid row: '{end_row}'"));
+        }
+        if self.model.workbook.worksheet(sheet).is_err() {
+            return Err(format!("Invalid worksheet index {}", sheet));
+        }
+        if let Ok(worksheet) = self.model.workbook.worksheet_mut(sheet) {
+            if let Some(view) = worksheet.views.get_mut(&0) {
+                view.range = [start_row, start_column, end_row, end_column];
+            }
+        }
+        Ok(())
+    }
+
+    /// Sets the value of the first visible cell
+    pub fn set_top_left_visible_cell(
+        &mut self,
+        top_row: i32,
+        left_column: i32,
+    ) -> Result<(), String> {
+        let sheet = if let Some(view) = self.model.workbook.views.get(&self.model.view_id) {
+            view.sheet
+        } else {
+            0
+        };
+
+        if !is_valid_column_number(left_column) {
+            return Err(format!("Invalid column: '{left_column}'"));
+        }
+        if !is_valid_column_number(top_row) {
+            return Err(format!("Invalid row: '{top_row}'"));
+        }
+        if self.model.workbook.worksheet(sheet).is_err() {
+            return Err(format!("Invalid worksheet index {}", sheet));
+        }
+        if let Ok(worksheet) = self.model.workbook.worksheet_mut(sheet) {
+            if let Some(view) = worksheet.views.get_mut(&0) {
+                view.top_row = top_row;
+                view.left_column = left_column;
+            }
+        }
+        Ok(())
+    }
     // **** Private methods ****** //
 
     fn push_diff_list(&mut self, diff_list: DiffList) {

bindings/wasm/src/lib.rs

@@ -286,4 +286,56 @@ impl Model {
     pub fn get_worksheets_properties(&self) -> JsValue {
         serde_wasm_bindgen::to_value(&self.model.get_worksheets_properties()).unwrap()
     }
+
+    #[wasm_bindgen(js_name = "getSelectedSheet")]
+    pub fn get_selected_sheet(&self) -> u32 {
+        self.model.get_selected_sheet()
+    }
+
+    #[wasm_bindgen(js_name = "getSelectedCell")]
+    pub fn get_selected_cell(&self) -> Vec<i32> {
+        let (sheet, row, column) = self.model.get_selected_cell();
+        vec![sheet as i32, row, column]
+    }
+
+    #[wasm_bindgen(js_name = "getSelectedView")]
+    pub fn get_selected_view(&self) -> JsValue {
+        serde_wasm_bindgen::to_value(&self.model.get_selected_view()).unwrap()
+    }
+
+    #[wasm_bindgen(js_name = "setSelectedSheet")]
+    pub fn set_selected_sheet(&mut self, sheet: u32) -> Result<(), JsError> {
+        self.model.set_selected_sheet(sheet).map_err(to_js_error)
+    }
+
+    #[wasm_bindgen(js_name = "setSelectedCell")]
+    pub fn set_selected_cell(&mut self, row: i32, column: i32) -> Result<(), JsError> {
+        self.model
+            .set_selected_cell(row, column)
+            .map_err(to_js_error)
+    }
+
+    #[wasm_bindgen(js_name = "setSelectedRange")]
+    pub fn set_selected_range(
+        &mut self,
+        start_row: i32,
+        start_column: i32,
+        end_row: i32,
+        end_column: i32,
+    ) -> Result<(), JsError> {
+        self.model
+            .set_selected_range(start_row, start_column, end_row, end_column)
+            .map_err(to_js_error)
+    }
+
+    #[wasm_bindgen(js_name = "setTopLeftVisibleCell")]
+    pub fn set_top_left_visible_cell(
+        &mut self,
+        top_row: i32,
+        top_column: i32,
+    ) -> Result<(), JsError> {
+        self.model
+            .set_top_left_visible_cell(top_row, top_column)
+            .map_err(to_js_error)
+    }
 }

xlsx/src/import/mod.rs

@@ -16,7 +16,7 @@ use std::{
 use roxmltree::Node;
 
 use ironcalc_base::{
-    types::{Metadata, Workbook, WorkbookSettings},
+    types::{Metadata, Workbook, WorkbookSettings, WorkbookView},
     Model,
 };
 
@@ -66,7 +66,7 @@ fn load_xlsx_from_reader<R: Read + std::io::Seek>(
     let workbook = load_workbook(&mut archive)?;
     let rels = load_relationships(&mut archive)?;
     let mut tables = HashMap::new();
-    let worksheets = load_sheets(
+    let (worksheets, selected_sheet) = load_sheets(
         &mut archive,
         &rels,
         &workbook,
@@ -88,6 +88,13 @@ fn load_xlsx_from_reader<R: Read + std::io::Seek>(
             }
         }
     };
+    let mut views = HashMap::new();
+    views.insert(
+        0,
+        WorkbookView {
+            sheet: selected_sheet,
+        },
+    );
     Ok(Workbook {
         shared_strings,
         defined_names: workbook.defined_names,
@@ -100,6 +107,7 @@ fn load_xlsx_from_reader<R: Read + std::io::Seek>(
         },
         metadata,
         tables,
+        views,
     })
 }
 

xlsx/src/import/worksheets.rs

@@ -8,7 +8,8 @@ use ironcalc_base::{
         utils::{column_to_number, parse_reference_a1},
     },
     types::{
-        Cell, Col, Comment, DefinedName, Row, Selection, SheetData, SheetState, Table, Worksheet,
+        Cell, Col, Comment, DefinedName, Row, SheetData, SheetState, Table, Worksheet,
+        WorksheetView,
     },
 };
 use roxmltree::Node;
@@ -674,7 +675,7 @@ pub(super) fn load_sheet<R: Read + std::io::Seek>(
     worksheets: &[String],
     tables: &HashMap<String, Table>,
     shared_strings: &mut Vec<String>,
-) -> Result<Worksheet, XlsxError> {
+) -> Result<(Worksheet, bool), XlsxError> {
     let sheet_name = &settings.name;
     let sheet_id = settings.id;
     let state = &settings.state;
@@ -952,27 +953,37 @@ pub(super) fn load_sheet<R: Read + std::io::Seek>(
     // pageSetup
     // <pageSetup orientation="portrait" r:id="rId1"/>
 
-    Ok(Worksheet {
-        dimension,
-        cols,
-        rows,
-        shared_formulas,
-        sheet_data,
-        name: sheet_name.to_string(),
-        sheet_id,
-        state: state.to_owned(),
-        color,
-        merge_cells,
-        comments: settings.comments,
-        frozen_rows: sheet_view.frozen_rows,
-        frozen_columns: sheet_view.frozen_columns,
-        selection: Selection {
-            is_selected: sheet_view.is_selected,
+    let mut views = HashMap::new();
+    views.insert(
+        0,
+        WorksheetView {
             row: sheet_view.selected_row,
             column: sheet_view.selected_column,
             range: sheet_view.range,
+            top_row: 1,
+            left_column: 1,
         },
-    })
+    );
+
+    Ok((
+        Worksheet {
+            dimension,
+            cols,
+            rows,
+            shared_formulas,
+            sheet_data,
+            name: sheet_name.to_string(),
+            sheet_id,
+            state: state.to_owned(),
+            color,
+            merge_cells,
+            comments: settings.comments,
+            frozen_rows: sheet_view.frozen_rows,
+            frozen_columns: sheet_view.frozen_columns,
+            views,
+        },
+        sheet_view.is_selected,
+    ))
 }
 
 pub(super) fn load_sheets<R: Read + std::io::Seek>(
@@ -981,7 +992,7 @@ pub(super) fn load_sheets<R: Read + std::io::Seek>(
     workbook: &WorkbookXML,
     tables: &mut HashMap<String, Table>,
     shared_strings: &mut Vec<String>,
-) -> Result<Vec<Worksheet>, XlsxError> {
+) -> Result<(Vec<Worksheet>, u32), XlsxError> {
     // load comments and tables
     let mut comments = HashMap::new();
     for sheet in &workbook.worksheets {
@@ -1003,6 +1014,8 @@ pub(super) fn load_sheets<R: Read + std::io::Seek>(
     // load all sheets
     let worksheets: &Vec<String> = &workbook.worksheets.iter().map(|s| s.name.clone()).collect();
     let mut sheets = Vec::new();
+    let mut selected_sheet = 0;
+    let mut sheet_index = 0;
     for sheet in &workbook.worksheets {
         let sheet_name = &sheet.name;
         let rel_id = &sheet.id;
@@ -1021,15 +1034,14 @@ pub(super) fn load_sheets<R: Read + std::io::Seek>(
                 state: state.clone(),
                 comments: comments.get(rel_id).expect("").to_vec(),
             };
-            sheets.push(load_sheet(
-                archive,
-                &path,
-                settings,
-                worksheets,
-                tables,
-                shared_strings,
-            )?);
+            let (s, is_selected) =
+                load_sheet(archive, &path, settings, worksheets, tables, shared_strings)?;
+            if is_selected {
+                selected_sheet = sheet_index;
+            }
+            sheets.push(s);
+            sheet_index += 1;
         }
     }
-    Ok(sheets)
+    Ok((sheets, selected_sheet))
 }

xlsx/tests/test.rs

@@ -16,33 +16,32 @@ fn test_example() {
     let workbook = model.workbook;
     let ws = &workbook.worksheets;
     let expected_names = vec![
-        ("Sheet1".to_string(), false),
-        ("Second".to_string(), false),
-        ("Sheet4".to_string(), false),
-        ("shared".to_string(), false),
-        ("Table".to_string(), false),
-        ("Sheet2".to_string(), false),
-        ("Created fourth".to_string(), false),
-        ("Frozen".to_string(), true),
-        ("Split".to_string(), false),
-        ("Hidden".to_string(), false),
+        "Sheet1".to_string(),
+        "Second".to_string(),
+        "Sheet4".to_string(),
+        "shared".to_string(),
+        "Table".to_string(),
+        "Sheet2".to_string(),
+        "Created fourth".to_string(),
+        "Frozen".to_string(),
+        "Split".to_string(),
+        "Hidden".to_string(),
     ];
-    let names: Vec<(String, bool)> = ws
-        .iter()
-        .map(|s| (s.name.clone(), s.selection.is_selected))
-        .collect();
+    let names: Vec<String> = ws.iter().map(|s| s.name.clone()).collect();
 
     // One is not not imported and one is hidden
     assert_eq!(expected_names, names);
 
+    assert_eq!(workbook.views[&0].sheet, 7);
+
     // Test selection:
     // First sheet (Sheet1)
     // E13 and E13:N20
     assert_eq!(ws[0].frozen_rows, 0);
     assert_eq!(ws[0].frozen_columns, 0);
-    assert_eq!(ws[0].selection.row, 13);
-    assert_eq!(ws[0].selection.column, 5);
-    assert_eq!(ws[0].selection.range, [13, 5, 20, 14]);
+    assert_eq!(ws[0].views[&0].row, 13);
+    assert_eq!(ws[0].views[&0].column, 5);
+    assert_eq!(ws[0].views[&0].range, [13, 5, 20, 14]);
 
     let model2 = load_from_icalc("tests/example.ic").unwrap();
     let s = bitcode::encode(&model2.workbook);