使用DragChartPanel怎么實現(xiàn)可拖拽曲線？很多新手對此不是很清楚，為了幫助大家解決這個難題，下面小編將為大家詳細(xì)講解，有這方面需求的人可以來學(xué)習(xí)下，希望你能有所收獲。
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初始化坐標(biāo)格圖：
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chartpanel1 = new DragChartPanel(this);
chartpanel1.setXtitle("時 間");
chartpanel1.setYtitle("負(fù) 荷（MW）");
chartpanel1.setDragLabel(jLabel1);
chartpanel1.setTm((DefaultTableModel) jTable1.getModel());
chartpanel1.setStartRow(0);
chartpanel1.setChartPanel(jPanel11);繪制曲線：
private void drawGraph(int col) {
jLabel1.setText("");
int count = jTable1.getRowCount();
String[][] chartData1 = new String[1][count];
String[] chartIndex = new String[count];
DefaultTableModel tm = (DefaultTableModel) jTable1.getModel();
for (int i = 0; i < tm.getRowCount(); i++) {
chartIndex[i] = tm.getValueAt(i, 0) == null ? "" : tm.getValueAt(i, 0).toString();
chartData1[0][i] = tm.getValueAt(i, col) == null ? "" : tm.getValueAt(i, col).toString();
}
if (chartpanel1 != null) {
chartpanel1.setEditColumn(col);
chartpanel1.setData(chartData1);
chartpanel1.setXLab(chartIndex);
chartpanel1.setTitle(tm.getColumnName(col));
chartpanel1.setLs_linename(new String[]{tm.getColumnName(col)});
chartpanel1.getChart();
}
}這個組件有一個缺點。只支持對列進(jìn)行修改，這是這個組件的一個特點（拖動曲線表格的列會發(fā)生改動）。
為了使用它，很多表的結(jié)構(gòu)就不得不迎合這一缺點。
例如如下表結(jié)構(gòu)：
都是按列展示的。對于有些情況很不合理！如何解決（思考中。。。。。。）
上面思考的問題解決了?。?！
源碼中有這樣一個字段：
再使用的過程中會出現(xiàn)如下情況：
這個時候你get哪個model就無所謂了，為了避免影響，隨便弄一樣不會發(fā)生改變的model吧。
這樣，拖動曲線的時候，label的值會實時顯示曲線的坐標(biāo)。
那么，給上面的label 加一個監(jiān)聽，改變值的時候，將label的內(nèi)容用“：”分割開，不剛好是x軸和y軸的值了嗎？
對應(yīng)橫向表格中，直接再label監(jiān)聽事件中就可以更改table的值。（完美！?。。?/p>
注意一下：有時拖動x軸的坐標(biāo)是很詳細(xì)很詳細(xì)的數(shù)據(jù)移動，是因為你選這了setIndex而不是setXLab
private void initChartline() {
//填充 圖形
String[][] ChartData = new String[1][24];
String[] ChartIndex = new String[24];
if (fixTable.getRowCount() > 0) {
for (int i = 0; i < dataTable.getColumnCount() - 2; i++) {
ChartIndex[i] = String.valueOf(i);
ChartData[0][i] = dataTable.getValueAt(fixtable_sld, i) == null ? "" : dataTable.getValueAt(fixtable_sld, i).toString();
}
if (dchartpanel_1 != null) {
//String pdate = (String) fixTable.getValueAt(fixTable.getSelectedRow(), 3);
dchartpanel_1.setLs_linename(new String[]{"聯(lián)絡(luò)線曲線" + "ceshi1" + "（MW）"});
dchartpanel_1.setLcol(Lcol);
dchartpanel_1.setXLab(ChartIndex);//setXLab 和setIndex的區(qū)別在于，setXLab拖動取值x軸是按照下標(biāo)取值的，而setIndex則是拖動的位置，常常不是整數(shù)，推薦用前者
dchartpanel_1.setData(ChartData);
//dchartpanel_1.setIndex(ChartIndex);
dchartpanel_1.getChart();
}
}
}//曲線顏色
private java.awt.Color[] Lcol = {
java.awt.Color.red,
java.awt.Color.blue,
java.awt.Color.blue};它的源碼：
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.qctc.view.common.frame.pub;
import com.qctc.common.util.period;
import com.qctc.common.Constant;
import com.qctc.view.common.frame.BaseSubTabModule;
import com.qctc.view.common.frame.pub.datasysgraphdrag.datasysgraph;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.table.DefaultTableModel;
/**
*
* @author Administrator
*/
public class DragChartPanel {
private java.awt.Color[] Lcol = Constant.Lcol;
private Color bgcolor = new Color(204, 204, 255);//背景色
private Color rectcolor = Color.white;//圖形矩形內(nèi)顏色
public DragChartPanel(BaseSubTabModule parentModule, Color bgcolor, Color rectcolor) {
this.bgcolor = bgcolor;
this.rectcolor = rectcolor;
this.parentModule = parentModule;
initChartPanel();
}
public DragChartPanel(BaseSubTabModule parentModule) {
this.parentModule = parentModule;
initChartPanel();
}
public DragChartPanel() {
initChartPanel();
}
public void initChartPanel() {
//設(shè)置是否翻頁
chart.setMutiPage(false);
chart.setConvertBool(true);
//設(shè)置底色
chart.setBackColor(bgcolor);
// chart.setBackColor(new Color(192,192,192));
//設(shè)置圖形區(qū)域的邊框顏色
chart.setBorderColor(Color.red);
//設(shè)置圖形區(qū)域的底色
// chart.setChartRectColor(new Color(204, 204, 250));
// if(Constant.SYSTEM_AREA.equals("山西")){
chart.setChartRectColor(rectcolor);
// chart.setChartRectColor(new Color(74,74,107));
// }
//設(shè)置xy坐標(biāo)軸顏色
chart.setXyColor(new Color(30, 30, 30));
//設(shè)置標(biāo)題顏色
chart.setTitleColor(new Color(30, 30, 30));
//設(shè)置網(wǎng)格顏色
chart.setGridColor(new Color(50, 180, 180));
//設(shè)置是否顯示網(wǎng)格 1 顯示 其他不顯示
chart.setShowHidegrid(1);
//設(shè)置顯示點的大小
// chart.setShowHidep(0);
// if (Constant.SYSTEM_AREA.equals("山西")) {
chart.setShowHidep(1);
// }
//鼠標(biāo)移動曲線上是否自動顯示橫縱坐標(biāo)十字線
chart.setshowCrossLine(true);
//設(shè)置鼠標(biāo)移動曲線顯示的十字線顏色
chart.setCrossLineColor(new Color(150, 180, 150));
//設(shè)置曲線類型：0 連續(xù)的曲線 3只顯示點
chart.setLineType(0);
//設(shè)置鼠標(biāo)提示框框邊顏色
chart.setLwBorderColor(Color.red);
//設(shè)置鼠標(biāo)顯示提示框底色
chart.setLwColor(Color.yellow);
//設(shè)置鼠標(biāo)顯示提示框提示字的顏色
chart.setLwTextColor(Color.white);
//設(shè)置橫豎網(wǎng)格線條數(shù)
chart.setXzPoints(9);
chart.setYzPoints(10);
chartpanel.setLayout(new BorderLayout());
chartpanel.add(getChart(), java.awt.BorderLayout.CENTER);
chart.addMouseListener(new java.awt.event.MouseAdapter() {
public void mousePressed(java.awt.event.MouseEvent evt) {
dragState = true;
}
public void mouseReleased(java.awt.event.MouseEvent evt) {
dragState = false;
}
});
}
public boolean isDragState() {
return dragState;
}
private boolean dragState = false;
protected BaseSubTabModule parentModule;
private JPanel chartpanel = new JPanel();
//
private datasysgraph chart = new datasysgraph();
//圖形參數(shù)
private double maxv = -999999999, minv = 999999999;
private boolean maxv_zd = true;
private boolean minv_zd = true;
private String[][] data = null;
private String[] ls_linename = null;
private String title = "";
private String xtitle = "";
private String ytitle = "";
private int xpoints = 12;
private int xmax = 96;
private int xmin = 0;
private String[] index = null;
private int EditColumn = 0;//拖動關(guān)聯(lián)列
private int StartRow = 0;//拖動起始行
private JLabel DragLabel = null;//關(guān)聯(lián)table
private DefaultTableModel tm = null;//關(guān)聯(lián)的tm
private boolean sftd = true;
private int ShowLabelCol = -1;
private int[] LineShowLabelCols;
public void setSftd(boolean sftd) {
this.sftd = sftd;
}
public void setShowLabelCol(int ShowLabelCol) {
this.ShowLabelCol = ShowLabelCol;
}
public void setLineShowLabelCols(int[] LineShowLabelCols) {
this.LineShowLabelCols = LineShowLabelCols;
}
public void setTm(DefaultTableModel tm) {
this.tm = tm;
}
public void setDragLabel(JLabel DragLabel) {
this.DragLabel = DragLabel;
}
public void setEditColumn(int EditColumn) {
this.EditColumn = EditColumn;
}
public void setStartRow(int StartRow) {
this.StartRow = StartRow;
}
public void setXtitle(String xtitle) {
this.xtitle = xtitle;
}
public void setYtitle(String ytitle) {
this.ytitle = ytitle;
}
public void setIndex(String[] index) {
this.index = index;
}
public void setData(String[][] data) {
this.data = data;
}
public void setLs_linename(String[] ls_linename) {
this.ls_linename = ls_linename;
}
public void setTitle(String title) {
this.title = title;
}
public datasysgraph getChart() {
try {
createChart();
return chart;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
public datasysgraph getChartByColor(Color[] col) {
try {
createChartByColor(col);
return chart;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 設(shè)置chart要加入的JPanel
* @param panel
*/
public void setChartPanel(JPanel panel) {
Container parent = chartpanel.getParent();
if (parent != null) {
parent.removeAll();
}
panel.add(chartpanel);
panel.setMinimumSize(new Dimension(300, 100));
}
private void createChart() {
setMaxMin(this.data);
setPara();
setDragPara();
setXY();
buildChart();
}
private void createChartByColor(Color[] col) {
setMaxMin(this.data);
setPara();
setDragPara();
setXY();
buildChartByColor(col);
}
/**
* 生成圖
*/
private void buildChart() {
try {
if (this.data != null) {
int len = this.data.length;
for (int i = 0; i < len; i++) {
chart.AddItem(ls_linename[i], data[i].length,
this.Lcol[i]);
chart.setPointValue(ls_linename[i], this.index, this.data[i]);
}
chart.refresh();
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 生成圖
*/
private void buildChartByColor(Color[] col) {
try {
if (this.data != null) {
int len = this.data.length;
for (int i = 0; i < len; i++) {
chart.AddItem(ls_linename[i], data[i].length,
col[i]);
chart.setPointValue(ls_linename[i], this.index, this.data[i]);
}
chart.refresh();
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 設(shè)置參數(shù)
*/
private void setPara() {
try {
chart.ClearAll();
chart.setTitle(this.title);
chart.setLtitlex(this.xtitle);
chart.setLtitley(this.ytitle);
chart.setMutiPage(false);
chart.setYbzzb(this.getMaxv(), this.getMinv());
chart.setShowLabelCol(ShowLabelCol);
chart.setLineShowLabelCols(LineShowLabelCols);
} catch (Exception e) {
e.printStackTrace();
}
}
private void setDragPara() {
// 拖動數(shù)據(jù)列設(shè)置
chart.setEditColumn(this.EditColumn);
// 拖動起始行設(shè)置
chart.setStartIndex(this.StartRow);
chart.setJlabel(this.DragLabel);
// 是否 實現(xiàn)拖動 設(shè)置
chart.setIsDrag(this.sftd);
chart.setTableDataModel(this.tm);
}
private String[] XLab = null;
/**
* 設(shè)置 圖形x軸標(biāo)簽
* @param XLab
*/
public void setXLab(String[] XLab) {
this.XLab = XLab;
}
public void setXpoints(int xpoints) {
this.xpoints = xpoints;
}
/**
* x軸顯示坐標(biāo)間隔點數(shù)
*/
private int XTabN = 10;
/**
* 設(shè)置xy軸
*/
private void setXY() {
try {
chart.setXzPoints(this.xpoints);//x軸 分割線
chart.setXmin(this.xmin);
if (XLab == null) {
chart.setXmax(this.xmax);
this.xpoints = 12;
period period1 = new period();
String[] ls_pd = new String[97];
for (int i = 0; i < 96; i++) {
ls_pd[i] = period1.getPeriod()[i];
}
ls_pd[96] = "24:00";
for (int i = 0; i <= 12; i++) {
if (i == 0) {
chart.SetXlab(i, ls_pd[i]);
} else {
chart.SetXlab(i, ls_pd[i * 8]);
}
}
chart.setConvertBool(true);
chart.setdxLab(ls_pd);
} else {
int len = this.data[0].length;
this.XTabN = len / 8 + 1;
this.xpoints = len / this.XTabN + 1;
chart.setXzPoints(this.xpoints);//x軸 分割線
this.index = new String[len];
for (int i = 0; i < len; i++) {
index[i] = String.valueOf(i);
}
this.xmax = this.xpoints * this.XTabN;
chart.setXmax(this.xmax);
String[] TmXLab = new String[this.xmax];
for (int i = 0; i < this.xmax; i++) {
if (i < XLab.length) {
TmXLab[i] = XLab[i];
} else {
TmXLab[i] = "";
}
}
for (int i = 0; i < this.xpoints; i++) {
if (i * this.XTabN < len) {
chart.SetXlab(i, TmXLab[i * this.XTabN]);
} else {
chart.SetXlab(i, "");
}
}
chart.SetXlab(this.xpoints, " ");
chart.setConvertBool(true);
chart.setdxLab(TmXLab);
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 獲取最值
* @param data
*/
private void setMaxMin(String[][] data) {
if (this.maxv_zd) {
this.maxv = -999999999;
try {
if (data != null) {
for (int i = 0; i < data.length; i++) {
for (int j = 0; j < data[i].length; j++) {
if (data[i][j] != null && !data[i][j].equals("")) {
try {
double maxdd = Double.parseDouble( (data[i][j] == null || "null".equals(data[i][j]) || "".equals(data[i][j])) ? "0" : data[i][j]);
if ( maxdd > getMaxv()) {
this.maxv = maxdd;
}
} catch (Exception e1) {
e1.printStackTrace();
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
if (getMaxv() == -999999999) {
this.maxv = 100;
} else {
if (getMaxv() > 0) {
this.maxv = getMaxv() * 1.05;
} else {
this.maxv = getMaxv() * 0.95;
}
}
}
if (this.minv_zd) {
this.minv = 999999999;
try {
if (data != null) {
for (int i = 0; i < data.length; i++) {
for (int j = 0; j < data[i].length; j++) {
if (data[i][j] != null && !data[i][j].equals("")) {
try {
double mindd = Double.parseDouble( (data[i][j] == null || "null".equals(data[i][j]) || "".equals(data[i][j])) ? "0" : data[i][j]);
if (mindd < getMinv()) {
this.minv = mindd;
}
} catch (Exception e1) {
e1.printStackTrace();
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
if (getMinv() == 999999999) {
this.minv = 0;
} else {
if (getMinv() > 0) {
this.minv = getMinv() * 0.95;
} else {
this.minv = getMinv() * 1.05;
}
}
}
}
/**
* @return the Lcol
*/
public java.awt.Color[] getLcol() {
return Lcol;
}
/**
* @param Lcol the Lcol to set
*/
public void setLcol(java.awt.Color[] Lcol) {
this.Lcol = Lcol;
}
/**
* @return the maxv
*/
public double getMaxv() {
return maxv;
}
/**
* @param maxv the maxv to set
*/
public void setMaxv(double maxv) {
this.maxv = maxv;
this.maxv_zd = false;
}
/**
* @return the minv
*/
public double getMinv() {
return minv;
}
/**
* @param minv the minv to set
*/
public void setMinv(double minv) {
this.minv = minv;
this.minv_zd = false;
}
/**
* 返回修改的曲線數(shù)據(jù)
* 2013-04-08 hwh
* @return
*/
public double[] getGraphDataY() {
return chart.getGraphDataY();
}
}看完上述內(nèi)容是否對您有幫助呢？如果還想對相關(guān)知識有進(jìn)一步的了解或閱讀更多相關(guān)文章，請關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道，感謝您對創(chuàng)新互聯(lián)的支持。
