sdagrid.java

很好的UI界面源码..还有自己的输入法,可以更换风格.可以学习和使用

package cn.sda.ui;

import cn.sda.enterprise.*;
import cn.sda.event.DrawGridCellEvent;
import cn.sda.event.GridCellClickEvent;
import cn.sda.event.KeybordEvent;
import cn.sda.event.PointerEvent;
import javax.microedition.lcdui.Graphics;
import java.util.Vector;

/**
 * @author not attributable
 * @version 1.0
 */
public class SDAGrid extends SDABaseControl {
    //数据集合
    private SDADataSet DataSet = null;
    private SDADataSet oldDataSet = null;
    //各列宽度
    private Vector ColumnsList;
    //边框
    private int borderStyle = SDAConsts.bsNone;

    //隐藏选定内容
    private boolean hideSelection = true;
    //滚动边框(多行)
    private int scrollBars = SDAConsts.srNone;
    //边框线颜色
    private int borderColor = SDAConsts.clBlack;
    //滚动条颜色
    private int FixedColor = SDAConsts.clBtnFace;
    //选中后字体颜色
    private int selectedFontColor = SDAConsts.clWhite;
    //选中行后，行的背景色
    private int selectedBackColor = SDAConsts.clFocusShadow;
    private int lostFocusSelectedBackColor = SDAConsts.clGray;
    //统计行背景色
    private int footRowColor = SDAConsts.clWhite;
    //内部变量
    //左边指针显示的宽度
    private int FixedWidth = 15;
    //表格头的高度,行高
    private int RowHeight = 15;
    //屏幕当前显示起始行
    private int StartRow = 0;
    //屏幕当前显示起始列
    private int StartCol = 0;
    //屏幕当前结束行
    private int EndRow = 0;
    //是否为最后一行
    private boolean IsEndRow = false;
    //是否为最后一列
    private boolean IsEndCol = false;
    //当前指针位置
    private int Cursor = 0;
    //滚动条宽度
    private int barwidth = 10;
    //缺省列宽
    private int DefaultColWidth = 50;
    //行数，行最大长度
    private int maxLineLenght = 0;
    //水平开始显示位置
    private int startLeft = 0;
    //变动前位置
    private int oldStartLine = 0;
    private int oldStartLeft = 0;
    //水平滚条位置
    private int HSLeft = 0;
    private int HSTop = 0;
    private int HSWidth = 0;
    private int HSHeight = 0;
    //垂直滚动条位置
    private int VSLeft = 0;
    private int VSTop = 0;
    private int VSWidth = 0;
    private int VSHeight = 0;
    //点击的滚动条的位置
    private int oldScrollPointx = 0;
    private int oldScrollPointy = 0;
    //按下滚动条
    private boolean isscrollbarpointdown = false;
    //记录按下的滚动条0:水平，1：垂直的
    private byte scrollbardownHV = 0;

    //统计内容显示
    private boolean showFootRow = false;
    //点的排序字段
    private String sortFieldName = "";
    //排序方式
    private int sortType = SDADataSet.sortAsc;
    //单元格单击事件
    private GridCellClickEvent OnGridCellClick = null;
    //绘单元格
    private DrawGridCellEvent onDrawGridCell = null;
    //单元格
    private Cell cell = null;
    //各列信息
    public class Column {
        //统计类型
        public static final int ftNone = 0;       //不显示
        public static final int ftAvg = 1;        //平均
        public static final int ftCount = 2;      //行数
        public static final int ftStaticText = 3; //固定文字
        public static final int ftSum = 4;        //求和
        public static final int ftFieldValue = 5; //当前值
        //标题文字对齐方式
        private int titleAlignType = SDAConsts.alignLeft;
        //内容文字对齐方式
        private int dataAlignType = SDAConsts.alignLeft;
        //统计内容对齐方式
        private int footAlignType = SDAConsts.alignLeft;
        //统计内容格式
        private String footDisplayFormat = "";
        //字段标题
        private String Title = "";
        //字段名
        private String FieldName = "";
        //列宽度
        private int ColWidth = 60;
        //格式表达式(主要针对浮点数)
        private String DisplayFormat = "";
        //统计内容
        private String footValue = "";
        //统计类型
        private int footType = ftNone;
        //构造
        public Column() {
        }

        public Column(String fieldName) {
            this.FieldName = fieldName;
        }

        public Column(String fieldName, String title) {
            this.FieldName = fieldName;
            this.Title = title;
        }

        public Column(String fieldName, String title, int colWidth) {
            this.FieldName = fieldName;
            this.Title = title;
            this.ColWidth = colWidth;
        }

        public Column(String fieldName, String title, int colWidth, String displayFormat) {
            this.FieldName = fieldName;
            this.Title = title;
            this.ColWidth = colWidth;
            this.DisplayFormat = displayFormat;
        }

        public int getColWidth() {
            return ColWidth;
        }

        public void setColWidth(int ColWidth) {
            this.ColWidth = ColWidth;
        }

        public String getDisplayFormat() {
            return DisplayFormat;
        }

        public void setDisplayFormat(String DisplayFormat) {
            this.DisplayFormat = DisplayFormat;
        }

        public String getFieldName() {
            return FieldName;
        }

        public void setFieldName(String FieldName) {
            this.FieldName = FieldName;
        }

        public String getTitle() {
            return Title;
        }

        public void setTitle(String Title) {
            this.Title = Title;
        }

        public int getFootType() {
            return footType;
        }

        public void setFootType(int footType) {
            this.footType = footType;
        }

        public String getFootValue() {
            return footValue;
        }

        public void setFootValue(String footValue) {
            this.footValue = footValue;
        }

        public int getDataAlignType() {
            return dataAlignType;
        }

        public void setDataAlignType(int dataAlignType) {
            this.dataAlignType = dataAlignType;
        }

        public int getTitleAlignType() {
            return titleAlignType;
        }

        public void setTitleAlignType(int titleAlignType) {
            this.titleAlignType = titleAlignType;
        }

        public int getFootAlignType() {
            return footAlignType;
        }

        public void setFootAlignType(int footAlignType) {
            this.footAlignType = footAlignType;
        }

        public String getFootDisplayFormat() {
            return footDisplayFormat;
        }

        public void setFootDisplayFormat(String footDisplayFormat) {
            this.footDisplayFormat = footDisplayFormat;
        }
    }

    //对列的处理
    //增加
    private void internalAddColumn(Column newColumn) {
        if (!ColumnsList.contains(newColumn)) {
            ColumnsList.addElement(newColumn);
        }
    }

    public void addColumn(Column newColumn) {
        internalAddColumn(newColumn);
    }

    private Column internalAddColumn() {
        Column cl = new Column();
        ColumnsList.addElement(cl);
        return cl;
    }

    public Column addColumn() {
        return internalAddColumn();
    }
    //构造
    public Column newColumn() {
        return new Column();
    }

    public Column newColumn(String fieldName) {
        return new Column(fieldName);
    }

    public Column newColumn(String fieldName, String title) {
        return new Column(fieldName, title);
    }

    public Column newColumn(String fieldName, String title, int colWidth) {
        return new Column(fieldName, title, colWidth);
    }

    public Column newColumn(String fieldName, String title, int colWidth, String displayFormat) {
        return new Column(fieldName, title, colWidth, displayFormat);
    }
    //删除
    private void internalDeleteColumn(int columnIndex) {
        if ((columnIndex > -1) && (columnIndex < ColumnsList.size())) {
            ColumnsList.removeElementAt(columnIndex);
        }
    }

    public void deleteColumn(int columnIndex) {
        internalDeleteColumn(columnIndex);
    }

    private void internalDeleteColumn(String columnFieldName) {
        Column cl = null;
        for (int i = 0; i < ColumnsList.size(); i++) {
            cl = (Column) ColumnsList.elementAt(i);
            if (cl.FieldName.equals(columnFieldName)) {
                ColumnsList.removeElementAt(i);
                break;
            }
        }
    }

    public void deleteColumn(String columnFieldName) {
        internalDeleteColumn(columnFieldName);
    }
    //获取
    public int getColumnsCount() {
        return ColumnsList.size();
    }

    private Column internalGetColumn(int columnIndex) {
        Column result = null;
        if ((columnIndex > -1) && (columnIndex < ColumnsList.size())) {
            result = (Column) ColumnsList.elementAt(columnIndex);
        }
        return result;
    }

    public Column getColumn(int columnIndex) {
        return internalGetColumn(columnIndex);
    }

    private Column internalGetColumn(String columnFieldName) {
        Column cl = null;
        for (int i = 0; i < ColumnsList.size(); i++) {
            cl = (Column) ColumnsList.elementAt(i);
            if (cl.FieldName.equals(columnFieldName)) {
                break;
            }
        }
        return cl;
    }

    public Column getColumn(String columnFieldName) {
        return internalGetColumn(columnFieldName);
    }

    //单元格
    public class Cell {

        private int foreColor = 0;
        private int backColor = 0;
        private String fieldValue = "";
        private String fieldName = "";
        private int rowIndex = 0;

        public int getBackColor() {
            return backColor;
        }

        public void setBackColor(int backColor) {
            this.backColor = backColor;
        }

        public int getForeColor() {
            return foreColor;
        }

        public void setForeColor(int foreColor) {
            this.foreColor = foreColor;
        }

        public String getFieldName() {
            return fieldName;
        }

        public String getFieldValue() {
            return fieldValue;
        }

        public void setFieldValue(String fieldValue) {
            this.fieldValue = fieldValue;