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Spreadsheet: Implement state-preserving saves and loads

This commit is contained in:
AnotherTest 2020-08-25 00:53:22 +04:30 committed by Andreas Kling
parent 916e5e8cb3
commit fdf0660064
5 changed files with 215 additions and 22 deletions

View file

@ -30,6 +30,7 @@
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/JsonObjectSerializer.h>
#include <AK/JsonParser.h>
#include <LibCore/File.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
@ -42,7 +43,8 @@
namespace Spreadsheet {
SpreadsheetWidget::SpreadsheetWidget()
SpreadsheetWidget::SpreadsheetWidget(NonnullRefPtrVector<Sheet>&& sheets, bool should_add_sheet_if_empty)
: m_sheets(move(sheets))
{
set_fill_with_background_color(true);
set_layout<GUI::VerticalBoxLayout>().set_margins({ 2, 2, 2, 2 });
@ -76,8 +78,23 @@ SpreadsheetWidget::SpreadsheetWidget()
m_tab_widget = container.add<GUI::TabWidget>();
m_tab_widget->set_tab_position(GUI::TabWidget::TabPosition::Bottom);
m_sheets.append(Sheet::construct("Sheet 1"));
auto& tab = m_tab_widget->add_tab<SpreadsheetView>(m_sheets.first().name(), m_sheets.first());
m_cell_value_editor = cell_value_editor;
m_current_cell_label = current_cell_label;
if (m_sheets.is_empty() && should_add_sheet_if_empty)
m_sheets.append(Sheet::construct("Sheet 1"));
setup_tabs();
}
void SpreadsheetWidget::setup_tabs()
{
RefPtr<GUI::Widget> first_tab_widget;
for (auto& sheet : m_sheets) {
auto& tab = m_tab_widget->add_tab<SpreadsheetView>(sheet.name(), sheet);
if (!first_tab_widget)
first_tab_widget = &tab;
}
auto change = [&](auto& selected_widget) {
if (m_selected_view) {
@ -89,26 +106,28 @@ SpreadsheetWidget::SpreadsheetWidget()
StringBuilder builder;
builder.append(position.column);
builder.appendf("%zu", position.row);
current_cell_label.set_enabled(true);
current_cell_label.set_text(builder.string_view());
m_current_cell_label->set_enabled(true);
m_current_cell_label->set_text(builder.string_view());
cell_value_editor.on_change = nullptr;
cell_value_editor.set_text(cell.source());
cell_value_editor.on_change = [&] {
cell.set_data(cell_value_editor.text());
m_cell_value_editor->on_change = nullptr;
m_cell_value_editor->set_text(cell.source());
m_cell_value_editor->on_change = [&] {
cell.set_data(m_cell_value_editor->text());
m_selected_view->sheet().update();
};
cell_value_editor.set_enabled(true);
m_cell_value_editor->set_enabled(true);
};
m_selected_view->on_selection_dropped = [&]() {
cell_value_editor.set_enabled(false);
cell_value_editor.set_text("");
current_cell_label.set_enabled(false);
current_cell_label.set_text("");
m_cell_value_editor->set_enabled(false);
m_cell_value_editor->set_text("");
m_current_cell_label->set_enabled(false);
m_current_cell_label->set_text("");
};
};
change(tab);
if (first_tab_widget)
change(*first_tab_widget);
m_tab_widget->on_change = [change = move(change)](auto& selected_widget) {
change(selected_widget);
};
@ -118,6 +137,66 @@ SpreadsheetWidget::~SpreadsheetWidget()
{
}
void SpreadsheetWidget::load(const StringView& filename)
{
auto file_or_error = Core::File::open(filename, Core::IODevice::OpenMode::ReadOnly);
if (file_or_error.is_error()) {
StringBuilder sb;
sb.append("Failed to open ");
sb.append(filename);
sb.append(" for reading. Error: ");
sb.append(file_or_error.error());
GUI::MessageBox::show(window(), sb.to_string(), "Error", GUI::MessageBox::Type::Error);
return;
}
auto json_value_option = JsonParser(file_or_error.value()->read_all()).parse();
if (!json_value_option.has_value()) {
StringBuilder sb;
sb.append("Failed to parse ");
sb.append(filename);
GUI::MessageBox::show(window(), sb.to_string(), "Error", GUI::MessageBox::Type::Error);
return;
}
auto& json_value = json_value_option.value();
if (!json_value.is_array()) {
StringBuilder sb;
sb.append("Did not find a spreadsheet in ");
sb.append(filename);
GUI::MessageBox::show(window(), sb.to_string(), "Error", GUI::MessageBox::Type::Error);
return;
}
NonnullRefPtrVector<Sheet> sheets;
auto& json_array = json_value.as_array();
json_array.for_each([&](auto& sheet_json) {
if (!sheet_json.is_object())
return IterationDecision::Continue;
auto sheet = Sheet::from_json(sheet_json.as_object());
if (!sheet)
return IterationDecision::Continue;
sheets.append(sheet.release_nonnull());
return IterationDecision::Continue;
});
m_sheets.clear();
m_sheets = move(sheets);
while (auto* widget = m_tab_widget->active_widget()) {
m_tab_widget->remove_tab(*widget);
}
setup_tabs();
}
void SpreadsheetWidget::save(const StringView& filename)
{
JsonArray array;