githubmirror/echarts

test/theme.html
225 строк8 KB
Ovilia
feat(theme): dynamically register and set chart theme
21 янв 2025, 11:34
21 янв 2025, 11:344344997
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<html>
    <head>
        <meta charset="utf-8">
        <script src="lib/simpleRequire.js"></script>
        <script src="lib/config.js"></script>
        <script src="lib/testHelper.js"></script>
    </head>
    <body>
        <style>
            .chart {
                width: 100%;
                height: 400px;
            }
        </style>
        <div id="main0" class="chart"></div>
        <div id="main1" class="chart"></div>
        <script>

            require([
                'echarts'
            ], function (echarts) {

                var chart = echarts.init(document.getElementById('main0'), 'dark');

                var xAxisData = [];
                var data1 = [];
                var data2 = [];
                var data3 = [];
                var data4 = [];

                for (var i = 0; i < 10; i++) {
                    xAxisData.push('类目' + i);
                    data1.push((Math.random() * 5).toFixed(2));
                    data2.push(-Math.random().toFixed(2));
                    data3.push((Math.random() + 0.5).toFixed(2));
                    data4.push((Math.random() + 0.3).toFixed(2));
                }

                var itemStyle = {
                    normal: {
                        label: {
                            show: true,
                            position: 'outside'
                        }
                    },
                    emphasis: {
                        shadowBlur: 10,
                        shadowOffsetX: 0,
                        shadowOffsetY: 0,
                        shadowColor: 'rgba(0,0,0,0.5)'
                    }
                };

                console.profile('setOption');
                chart.setOption({
                    legend: {
                        data: [{
                            name: 'bar'
                        }, 'bar2', 'bar3', 'bar4'],
                        selected: {
                            // 'bar': false
                        },
                        orient: 'vertical',
                        left: 'right',
                        top: 'bottom',
                        align: 'right'
                    },
                    tooltip: {
                        trigger: 'axis',
                        axisPointer: {
                            type: 'cross'
                        }
                    },
                    dataZoom: {
                        start: 10,
                        end: 20
                    },
                    xAxis: {
                        data: xAxisData,
                        axisLine: {
                            onZero: true
                        },
                        splitLine: {
                            show: false
                        },
                        splitArea: {
                            show: false
                        }
                    },
                    yAxis: {
                        inverse: true,
                        splitArea: {
                            show: false
                        }
                    },
                    series: [{
                        name: 'bar',
                        type: 'bar',
                        stack: 'one',
                        itemStyle: itemStyle,
                        data: data1
                    }, {
                        name: 'bar2',
                        type: 'bar',
                        stack: 'one',
                        itemStyle: itemStyle,
                        data: data2
                    }, {
                        name: 'bar3',
                        type: 'bar',
                        stack: 'two',
                        itemStyle: itemStyle,
                        data: data3
                    }, {
                        name: 'bar4',
                        type: 'bar',
                        stack: 'two',
                        itemStyle: itemStyle,
                        data: data4
                    }]
                });
                console.profileEnd('setOption');
            })

        </script>

        <script>
            require([
                'echarts'
            ], function (echarts) {
                const darkTheme = {
                    backgroundColor: '#333',
                    title: {
                        textStyle: {
                            color: '#fff'
                        }
                    }
                };
                echarts.registerTheme('dark', darkTheme);

                var option = {
                    title: {
                        text: 'ECharts example'
                    },
                    xAxis: {
                        type: 'category',
                        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
                    },
                    yAxis: {
                        type: 'value'
                    },
                    series: [{
                        data: [120, 200, 150, 80, 70, 110, 130],
                        type: 'bar'
                    }]
                };

                var chart = testHelper.create(echarts, 'main1', {
                    title: [
                        'Test dynamic theme switching:',
                        'Click buttons to switch between dark and forest themes',
                        'The chart style should update **immediately**'
                    ],
                    option: option,
                    height: 300,
                    buttons: [{
                        text: 'Dark',
                        onclick: function () {
                            chart.setTheme('dark');
                        }
                    }, {
                        text: 'Forest',
                        onclick: function () {
                            const forestTheme = {
                                backgroundColor: '#cfc',
                                color: ['#090'],
                                title: {
                                    textStyle: {
                                        color: '#030'
                                    }
                                }
                            };
                            echarts.registerTheme('forest', forestTheme);
                            chart.setTheme('forest');
                            chart.setOption(option);
                        }
                    }, {
                        text: 'River',
                        onclick: function () {
                            const riverTheme = {
                                backgroundColor: '#ccf',
                                color: ['#00f'],
                                title: {
                                    textStyle: {
                                        color: '#00f'
                                    }
                                }
                            };
                            chart.setTheme(riverTheme);
                        }
                    }]
                });
            });
        </script>
    </body>
</html>