design/designer-realize/src/main/java/com/fr/grid/GridColumn.java

/*
 * Copyright(c) 2001-2010, FineReport  Inc, All Rights Reserved.
 */
package com.fr.grid;

import java.awt.Dimension;

import com.fr.base.GraphHelper;
import com.fr.design.mainframe.DesignerUIModeConfig;
import com.fr.design.mainframe.ElementCasePane;
import com.fr.stable.StableUtils;

/**
 * GridColumn used to paint and edit grid column.
 *
 * @editor zhou
 * @since 2012-3-22下午6:12:40
 */
public class GridColumn extends GridHeader<String> {


    private GridColumnMouseHandler gridColumnMouseHandler;
    private int adsorbWidth;

    public GridColumn(int resolution) {
        this(resolution, 0);
    }

    public GridColumn(int resolution, int adsorbWidth) {
        super(resolution);
        this.adsorbWidth = adsorbWidth;
    }

    @Override
    protected void initByConstructor() {
        this.updateUI();
    }

    @Override
    public String getDisplay(int index) {
        return StableUtils.convertIntToABC(index + 1);
    }

    @Override
    public void updateUI() {
        this.removeMouseListener(gridColumnMouseHandler);
        this.removeMouseMotionListener(gridColumnMouseHandler);
        gridColumnMouseHandler = new GridColumnMouseHandler(this, adsorbWidth);
        this.addMouseListener(gridColumnMouseHandler);
        this.addMouseMotionListener(gridColumnMouseHandler);
        this.setUI(new GridColumnUI(resolution));
    }

    /**
     * Gets the preferred size.
     */
    @Override
    public Dimension getPreferredSize() {
        ElementCasePane reportPane = this.getElementCasePane();
        float time = (float) reportPane.getResolution() / DesignerUIModeConfig.getInstance().getScreenResolution();
        if (!reportPane.isColumnHeaderVisible()) {
            return new Dimension(0, 0);
        }

        return new Dimension(super.getPreferredSize().width, (int) (GraphHelper.getFontMetrics(this.getFont()).getHeight() * time + SIZE_ADJUST));
    }
}