design/designer-base/src/main/java/com/fr/widgettheme/theme/panel/ControlPreviewCell.java

package com.fr.widgettheme.theme.panel;

import com.fr.base.BaseUtils;
import com.fr.base.Style;
import com.fr.base.theme.TemplateTheme;
import com.fr.widgettheme.ThemePreviewTerminal;
import com.fr.widgettheme.theme.widget.style.ThemeTextStyle;
import com.fr.widgettheme.theme.widget.style.ThemedWidgetStyle;
import com.fr.design.layout.FRGUIPaneFactory;
import com.fr.general.FRFont;
import com.fr.stable.Constants;
import com.fr.widgettheme.theme.widget.theme.WidgetThemeDisplayConstants;

import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JPanel;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.LayoutManager;
import java.awt.image.BufferedImage;

/**
 * 主题界面预览单元格子
 *
 * @author John.Ying
 * @since 11.0
 * Created on 2023/3/18
 */
public class ControlPreviewCell extends JPanel {
    protected static final LayoutManager DEFAULT = FRGUIPaneFactory.createRightFlowLayout();
    protected static final Color DEFAULT_COLOR = new Color(210, 210, 210);
    protected static final Color DEFAULT_THEME_COLOR = new Color(54, 133, 242);
    protected static final String DEFAULT_MESSAGE = "";
    protected static final int NO_SCALE_RESOLUTION = 100;
    protected static final int DEFAULT_ALPHA = 255;
    /**
     * 格子文本数据
     */
    protected String value;
    protected TemplateTheme reportTheme;

    /**
     * 主题预览类型，默认为PC端
     */
    protected ThemePreviewTerminal themePreviewTerminal = ThemePreviewTerminal.PC;
    /**
     * 字体的颜色
     */
    protected Color textColor = DEFAULT_COLOR;

    public Color getTextColor() {
        return textColor;
    }

    public void setTextColor(Color textColor) {
        this.textColor = textColor;
    }

    public ControlPreviewCell() {
        this(DEFAULT, DEFAULT_MESSAGE);
    }

    public ControlPreviewCell(String value) {
        this(DEFAULT, value);
    }

    public ControlPreviewCell(LayoutManager layoutManager, String value) {
        this.setLayout(layoutManager);
        this.setOpaque(false);
        this.value = value;
        this.setPreferredSize(new Dimension(80, 30));
    }

    /**
     * 主题样式变化后监听改变
     */
    public void refresh(TemplateTheme reportTheme, ThemePreviewTerminal type) {
        this.reportTheme = reportTheme;
        this.themePreviewTerminal = type;
        ThemedWidgetStyle widgetStyle = this.themePreviewTerminal.getThemeWidgetStyle(reportTheme);
        //主题色设置为透明或者插件启动前已有的主题启动插件后主题色为null
        if (widgetStyle.getThemeColor() == null) {
            widgetStyle.setThemeColor(DEFAULT_THEME_COLOR);
        }
    }

    /**
     * 填充圆角矩形背景色
     */
    public void paintBgColor(Graphics g, ThemedWidgetStyle widgetStyle) {
        this.paintBgColor(g, widgetStyle, DEFAULT_ALPHA);
    }

    public Color getIconColor() {
        return this.themePreviewTerminal.getThemeWidgetStyle(reportTheme).getIconColor();
    }

    protected Icon setStyleTwoIcon(Icon icon, Icon defaultIcon) {
        if (this.reportTheme != null) {
            if (icon instanceof ImageIcon) {
                ImageIcon imageIcon = (ImageIcon) icon;
                BufferedImage bufferedImage = ImageUtils.imageIconToBufferedImage(imageIcon);
                Color iconColor = getIconColor();
                // 设置为透明色时color是null
                if (iconColor != null) {
                    ImageUtils.colorImage(bufferedImage, iconColor);
                }
                return new ImageIcon(bufferedImage);
            }
        }
        return defaultIcon;
    }

    /**
     * 填充圆角矩形背景色
     */
    public void paintBgColor(Graphics g, ThemedWidgetStyle widgetStyle, int alpha) {
        ThemedWidgetStyle themeWidgetStyle = this.themePreviewTerminal.getThemeWidgetStyle(this.reportTheme);
        Color themeColor = themeWidgetStyle.getThemeColor();
        themeColor = themeColor == null ? WidgetThemeDisplayConstants.DEFAULT_TRANSPARENT_COLOR : themeColor;
        g.setColor(new Color(themeColor.getRed(), themeColor.getGreen(), themeColor.getBlue(), alpha));
        g.fillRoundRect(0, 0, getSize().width - 1, getSize().height - 1, (int) widgetStyle.getBorderStyle().getRadius(), (int) widgetStyle.getBorderStyle().getRadius());
        //需要重新绘制一遍字体,否则会被颜色填充给遮住
        Graphics2D g2d = (Graphics2D) g.create();
        ThemeTextStyle textStyle = themeWidgetStyle.getTextStyle();
        FRFont font = FRFont.getInstance(textStyle.getName(), textStyle.getCompositeFontStyle(), textStyle.getFontSize(), textStyle.getFontColor());
        BaseUtils.drawStringStyleInRotation(g2d, getWidth(), getHeight(), this.value,
                Style.getInstance(font).deriveHorizontalAlignment(Constants.LEFT)
                        .deriveTextStyle(Style.TEXTSTYLE_SINGLELINE), NO_SCALE_RESOLUTION);
    }

    @Override
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        if (this.reportTheme == null) {
            return;
        }
        Graphics2D g2d = (Graphics2D) g.create();
        ThemeTextStyle textStyle = this.themePreviewTerminal.getThemeWidgetStyle(reportTheme).getTextStyle();
        FRFont font = FRFont.getInstance(textStyle.getName(), textStyle.getCompositeFontStyle(), textStyle.getFontSize(), textStyle.getFontColor());
        //每个预览格子通用的字体绘制
        BaseUtils.drawStringStyleInRotation(g2d, getWidth(), getHeight(), this.value,
                Style.getInstance(font).deriveHorizontalAlignment(Constants.LEFT)
                        .deriveTextStyle(Style.TEXTSTYLE_SINGLELINE), NO_SCALE_RESOLUTION);
    }
}