design/designer-chart/src/main/java/com/fr/design/chart/AutoChartIcon.java

package com.fr.design.chart;

import com.fr.base.ScreenResolution;
import com.fr.base.chart.BaseChartPainter;
import com.fr.base.chart.chartdata.CallbackEvent;
import com.fr.base.chart.result.WebChartIDInfo;
import com.fr.chart.chartattr.Chart;
import com.fr.chart.chartattr.ChartCollection;
import com.fr.design.ChartTypeInterfaceManager;
import com.fr.design.file.HistoryTemplateListPane;
import com.fr.script.Calculator;

import javax.swing.Icon;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Paint;

/**
 * @author Bjorn
 * @version 10.0
 * Created by Bjorn on 2020-05-29
 */
public class AutoChartIcon implements Icon {

    private static final int WIDTH = 500;
    private static final int HEIGHT = 281;

    private ChartCollection chartCollection;
    private CallbackEvent callbackEvent;

    private String chartName;

    public AutoChartIcon(ChartCollection chartCollection) {
        this.chartCollection = chartCollection;
        initChartName();
    }

    public ChartCollection getChartCollection() {
        return chartCollection;
    }

    public String getChartName() {
        return chartName;
    }

    private void initChartName() {
        Chart chart = chartCollection.getSelectedChart(Chart.class);
        String[] subName = ChartTypeInterfaceManager.getInstance().getSubName(chart.getPlot().getPlotID());
        chartName = subName[0];
    }

    public void registerCallBackEvent(CallbackEvent callbackEvent) {
        this.callbackEvent = callbackEvent;
    }

    /**
     * 画出缩略图Icon
     *
     * @param g 图形的上下文
     * @param c 所在的Component
     * @param x 缩略图的起始坐标x
     * @param y 缩略图的起始坐标y
     */
    @Override
    public void paintIcon(Component c, Graphics g, int x, int y) {

        BaseChartPainter painter = chartCollection.createResultChartPainterWithOutDealFormula(Calculator.createCalculator(),
                WebChartIDInfo.createEmptyDesignerInfo(), getIconWidth(), getIconHeight());

        int resolution = HistoryTemplateListPane.getInstance().getCurrentEditingTemplate().getJTemplateResolution();
        if (resolution == 0) {
            resolution = ScreenResolution.getScreenResolution();
        }

        Graphics2D g2d = (Graphics2D) g;
        Paint oldPaint = g2d.getPaint();
        g.translate(x, y);
        g2d.setPaint(Color.white);
        g2d.fillRect(0, 0, getIconWidth(), getIconHeight());

        painter.paint(g2d, getIconWidth(), getIconHeight(), resolution, null, callbackEvent);

        g.translate(-x, -y);
        g2d.setPaint(oldPaint);
    }

    /**
     * 返回缩略图的宽度
     *
     * @return int 缩略图宽度
     */
    @Override
    public int getIconWidth() {
        return WIDTH;
    }

    /**
     * 返回缩略图的高度
     *
     * @return int 缩略图高度
     */
    @Override
    public int getIconHeight() {
        return HEIGHT;
    }
}