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csci4100-chartdemo
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color and text width

This commit is contained in:
Andrei Stoica 2024-11-14 14:00:43 -05:00
parent 7e67415c08
commit b6fe1841aa
1 changed files with 15 additions and 8 deletions
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19
lib/done.dart
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@ -54,6 +54,7 @@ class MyBarChart extends StatelessWidget {
final List<ChartData> data = ChartData.exampleData(); final List<ChartData> data = ChartData.exampleData();
final double _chartTextRotation = -1.57079633; final double _chartTextRotation = -1.57079633;
final double _leftTextWidth = 70;
double get maxY => max( double get maxY => max(
data.map((d) => d.gpa).reduce((a, b) => max(a, b)), data.map((d) => d.gpa).reduce((a, b) => max(a, b)),
@ -72,9 +73,15 @@ class MyBarChart extends StatelessWidget {
return SideTitleWidget( return SideTitleWidget(
angle: _chartTextRotation, angle: _chartTextRotation,
axisSide: meta.axisSide, axisSide: meta.axisSide,
child: SizedBox(
width: _leftTextWidth,
child: Align( child: Align(
alignment: Alignment.centerRight, alignment: Alignment.centerRight,
child: Text(data[x.floor()].name), child: Text(
data[x.floor()].name,
overflow: TextOverflow.ellipsis,
),
),
), ),
); );
} }
@ -84,8 +91,8 @@ class MyBarChart extends StatelessWidget {
.map((d) => BarChartGroupData( .map((d) => BarChartGroupData(
x: data.indexOf(d), x: data.indexOf(d),
barRods: [ barRods: [
BarChartRodData(toY: d.year.toDouble()), BarChartRodData(toY: d.year.toDouble(), color: Colors.orange),
BarChartRodData(toY: d.gpa.toDouble()) BarChartRodData(toY: d.gpa.toDouble(), color: Colors.indigo)
], ],
)) ))
.toList(); .toList();
@ -106,7 +113,7 @@ class MyBarChart extends StatelessWidget {
getTitlesWidget: _getBottomSideTitleWidget)), getTitlesWidget: _getBottomSideTitleWidget)),
bottomTitles: AxisTitles( bottomTitles: AxisTitles(
sideTitles: SideTitles( sideTitles: SideTitles(
reservedSize: 50, reservedSize: _leftTextWidth + 20,
showTitles: true, showTitles: true,
getTitlesWidget: _getLeftSideTitleWidget)), getTitlesWidget: _getLeftSideTitleWidget)),
), ),
@ -128,8 +135,8 @@ class ChartData {
static List<ChartData> exampleData() { static List<ChartData> exampleData() {
return [ return [
ChartData(name: "John", gpa: 2, year: 1), ChartData(name: "John Doe", gpa: 2, year: 1),
ChartData(name: "Jane", gpa: 3, year: 2), ChartData(name: "Jane Doe", gpa: 3, year: 2),
ChartData(name: "Doe", gpa: 4, year: 3), ChartData(name: "Doe", gpa: 4, year: 3),
]; ];
} }