Projections are working! Just 1 issue noticed so far.
This commit is contained in:
@@ -7,9 +7,16 @@ import '/db.dart';
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import '/models/tracked_item.dart';
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/// TODO:
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/// - Projected Assets in:
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/// - 1 week, 1 month, 1 quarter, 1 year
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/// - 1/2 year? 2 years? 5 years? Allow customization?
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/// - Projected Assets:
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/// - Allow customization?
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/// - Fix bug where editing an item does not reflect immediately when returning to Reports page.
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/// - Currently reflects after going back to Reports the 2nd time.
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double _assetTotal = 0,
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_expenseMonthly = 0,
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_expenseYearly = 0,
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_incomeMonthly = 0,
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_incomeYearly = 0;
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class ProjectionPage extends StatefulWidget {
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const ProjectionPage({
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@@ -23,6 +30,7 @@ class ProjectionPage extends StatefulWidget {
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class _ProjectionPageState extends State<ProjectionPage> {
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@override
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Widget build(BuildContext context) {
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// Summaries for display as well as calculation of totals for projections.
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Widget expenseSummary = SummaryCardForTotals(
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list: DatabaseHelper.instance.getExpenses(),
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summaryTypeLabel: ItemType.expense.title,
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@@ -36,16 +44,93 @@ class _ProjectionPageState extends State<ProjectionPage> {
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summaryTypeLabel: ItemType.asset.title,
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);
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// Calculations for the projections.
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double oneMonth = _assetTotal + _incomeMonthly - _expenseMonthly,
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threeMonths = _assetTotal + (3 * (_incomeMonthly - _expenseMonthly)),
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sixMonths = _assetTotal + (6 * (_incomeMonthly - _expenseMonthly)),
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oneYear = _assetTotal + (_incomeYearly - _expenseYearly),
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twoYears = _assetTotal + (2 * (_incomeYearly - _expenseYearly)),
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fiveYears = _assetTotal + (5 * (_incomeYearly - _expenseYearly));
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// Widgets to show the projections.
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Widget proj1 = SummaryCard(
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name: "One month from now...",
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leftText: "",
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middleText: oneMonth.toStringAsFixed(2),
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rightText: "",
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);
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Widget proj2 = SummaryCard(
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name: "Three months from now...",
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leftText: "",
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middleText: threeMonths.toStringAsFixed(2),
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rightText: "",
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);
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Widget proj3 = SummaryCard(
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name: "Half a year from now...",
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leftText: "",
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middleText: sixMonths.toStringAsFixed(2),
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rightText: "",
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);
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Widget proj4 = SummaryCard(
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name: "One year from now...",
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leftText: "",
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middleText: oneYear.toStringAsFixed(2),
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rightText: "",
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);
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Widget proj5 = SummaryCard(
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name: "Two years from now...",
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leftText: "",
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middleText: twoYears.toStringAsFixed(2),
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rightText: "",
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);
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Widget proj6 = SummaryCard(
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name: "Five years from now...",
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leftText: "",
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middleText: fiveYears.toStringAsFixed(2),
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rightText: "",
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);
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// Return all of the UI elements.
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return ListView(
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children: [
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TitleCard(title: "Summaries"),
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expenseSummary,
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incomeSummary,
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assetSummary,
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TitleCard(title: "Projections"),
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proj1,
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proj2,
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proj3,
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proj4,
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proj5,
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proj6,
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],
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);
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}
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}
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class TitleCard extends StatelessWidget {
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const TitleCard({
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super.key,
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required this.title,
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});
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final String title;
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@override
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Widget build(BuildContext context) {
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return Padding(
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padding: const EdgeInsets.all(8.0),
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child: Center(
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child: Text(
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title,
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style: TextStyle(fontSize: 20),
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),
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),
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);
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}
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}
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class SummaryCardForTotals extends StatelessWidget {
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const SummaryCardForTotals({
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super.key,
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@@ -70,11 +155,16 @@ class SummaryCardForTotals extends StatelessWidget {
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// Calculate the total fields based on item type.
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double dailyTotal = 0, monthlyTotal = 0, yearlyTotal = 0;
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bool isAsset = false;
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ItemType? itemType;
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for (TrackedItem e in snapshot.data!) {
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if (itemType == null) {
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itemType = e.type!;
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} else if (itemType != e.type) {
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throw "List in SummaryCardForTotals has multiple item types, abort!";
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}
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if (e.type == ItemType.asset) {
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monthlyTotal += e.amount;
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isAsset = true;
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} else {
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dailyTotal += e.calcComparableAmountDaily();
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monthlyTotal += e.calcComparableAmountYearly() / 12;
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@@ -82,11 +172,33 @@ class SummaryCardForTotals extends StatelessWidget {
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}
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}
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/* Load page variables based on calculated totals. */
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switch (itemType) {
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case ItemType.asset:
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_assetTotal = monthlyTotal;
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break;
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case ItemType.expense:
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_expenseMonthly = monthlyTotal;
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_expenseYearly = yearlyTotal;
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break;
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case ItemType.income:
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_incomeMonthly = monthlyTotal;
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_incomeYearly = yearlyTotal;
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break;
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default:
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throw UnimplementedError(
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"Item type ${itemType!.title} not handled in SummaryCardForTotals!",
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);
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}
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/* Determine what needs displayed for the item type. */
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// Header
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String plural = snapshot.data!.length == 1 ? "" : "s";
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String header = "$summaryTypeLabel Total";
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header += isAsset ? "" : "s";
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header += itemType == ItemType.asset ? "" : "s";
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header += " (${snapshot.data!.length} Item$plural)";
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// Total Fields
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@@ -97,7 +209,7 @@ class SummaryCardForTotals extends StatelessWidget {
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yearlyEstimate =
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yearlyTotal.toStringAsFixed(3).endsWith("0") ? "" : "~";
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String leftText = "", middleText = "", rightText = "";
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if (isAsset) {
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if (itemType == ItemType.asset) {
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middleText = "$monthlyEstimate${monthlyTotal.toStringAsFixed(2)}";
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} else {
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leftText = "$dailyEstimate${dailyTotal.toStringAsFixed(2)} Daily";
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@@ -118,7 +230,7 @@ class SummaryCardForTotals extends StatelessWidget {
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}
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}
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class SummaryCard extends StatelessWidget {
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class SummaryCard extends StatefulWidget {
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const SummaryCard({
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super.key,
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required this.name,
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@@ -132,6 +244,11 @@ class SummaryCard extends StatelessWidget {
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final String middleText;
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final String rightText;
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@override
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State<SummaryCard> createState() => _SummaryCardState();
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}
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class _SummaryCardState extends State<SummaryCard> {
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@override
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Widget build(BuildContext context) {
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return Card(
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@@ -143,7 +260,7 @@ class SummaryCard extends StatelessWidget {
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child: Column(
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children: [
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Text(
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name,
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widget.name,
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style: TextStyle(
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decoration: TextDecoration.underline,
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fontSize: 16,
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@@ -155,19 +272,19 @@ class SummaryCard extends StatelessWidget {
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flex: 3,
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),
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Text(
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leftText,
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widget.leftText,
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),
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Spacer(
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flex: 1,
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),
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Text(
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middleText,
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widget.middleText,
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),
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Spacer(
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flex: 1,
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),
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Text(
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rightText,
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widget.rightText,
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),
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Spacer(
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flex: 3,
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