Rendering JButton to get the JCheckBox behavior in a JTable by using images does not update my table -
i rendering jbutton image on simulate jcheckbox behavior. why don't let jtable render jcheckbox? because need bigger checkboxes , there's no way can resize them (as far know).
so, have own table cell renderer , editor. both renders jbutton , checkbox images on them. trying change image checked image unchecked image (or vice versa) , update cell value (boolean true or false). however, reason, getcelleditorvalue() not update table. so, release mouse, value goes original one.
any appreciated! lot!
public class tableexample extends jframe { jscrollpane pane; jpanel panel; jtable table; object[][] data; mytablemodel tm; renderer buttoncolumn; public tableexample(object[][] data) throws ioexception { string[] columns = {"column#1", "column#2", "column#3", "column#4", "column#5", "column#6"}; this.data = data; this.setpreferredsize(new dimension(700, 500)); this.setminimumsize(new dimension(700, 500)); this.setmaximumsize(new dimension(700, 500)); tm = new mytablemodel(this.data, columns); this.table = new jtable(tm); this.table.setrowheight(50); table.setdefaultrenderer(boolean.class, new renderer(this, table, 5)); table.setdefaulteditor(boolean.class, new editor(this, table, 5)); this.pane = new jscrollpane(this.table); this.add(this.pane); } /** * * table model */ public class mytablemodel extends abstracttablemodel { private object[][] data; private string[] columns; public mytablemodel(object[][] data, string[] columns) { this.data = data; this.columns = columns; } public void setcolumns(string[] columns1) { this.columns = columns1; } @override public int getrowcount() { return this.data.length; } @override public int getcolumncount() { return this.columns.length; } @override public string getcolumnname(int columnindex) { return columns[columnindex]; } @override public class<?> getcolumnclass(int c) { return getvalueat(0, c).getclass(); } @override public boolean iscelleditable(int rowindex, int columnindex) { return true; } @override public object getvalueat(int rowindex, int columnindex) { return data[rowindex][columnindex]; } public void setvalueat(string value, int row, int col) { if (debug) { system.out.println("setting value @ " + row + "," + col + " " + value + " (an instance of " + value.getclass() + ")"); } data[row][col] = value; firetablecellupdated(row, col); if (debug) { system.out.println("new value of data:"); printdebugdata(); } } private void printdebugdata() { int numrows = getrowcount(); int numcols = getcolumncount(); (int = 0; < numrows; i++) { system.out.print(" row " + + ":"); (int j = 0; j < numcols; j++) { system.out.print(" " + data[i][j]); } system.out.println(); } system.out.println("--------------------------"); } } /** * * cell renderer */ private class renderer extends jbutton implements tablecellrenderer { imageicon check; imageicon uncheck; boolean ischecked; public renderer(jframe frame, jtable table, int column) throws ioexception { image checki = imageio.read(getclass().getresource("ukbuttonblue.png")); image unchecki = imageio.read(getclass().getresource("ukbuttonrev.png")); this.setborderpainted(false); check = new imageicon(checki); uncheck = new imageicon(unchecki); } @override public component gettablecellrenderercomponent( jtable table, object value, boolean isselected, boolean hasfocus, int row, int column) { this.ischecked = (boolean) value; if (ischecked) { seticon(check); } else { seticon(uncheck); } return this; } } /** * * cell editor */ private class editor extends abstractcelleditor implements tablecelleditor, actionlistener { private jbutton editbutton; imageicon check; imageicon uncheck; boolean ischecked; public editor(jframe frame, jtable table, int column) throws ioexception { editbutton = new jbutton(); editbutton.addactionlistener(this); editbutton.setborderpainted(false); image checki = imageio.read(getclass().getresource("check.png")); image unchecki = imageio.read(getclass().getresource("uncheck.png")); check = new imageicon(checki); uncheck = new imageicon(unchecki); } @override public component gettablecelleditorcomponent( jtable table, object value, boolean isselected, int row, int column) { this.ischecked = (boolean) value; if (this.ischecked) { editbutton.seticon(uncheck); } else { editbutton.seticon(check); } system.out.println("edit " + ischecked); return editbutton; } @override public object getcelleditorvalue() { system.out.println("giden " + ischecked); return this.ischecked; } @override public void actionperformed(actionevent e) { if (this.ischecked) { this.ischecked = false; } else { this.ischecked = true; } fireeditingstopped(); } } public static void main(string[] args) throws ioexception { object[][] data = { {"1", "allan", "smith", false, true, false}, {"2", "jerry", "tucker", true, false, true} }; tableexample app = new tableexample(data); app.setvisible(true); } }
after working on while realized mytablemodel's iscelleditable method not working properly. switched detafulttablemodel overriding column class.
@override public class<?> getcolumnclass(int c) { return getvalueat(0, c).getclass(); } one problem using defaulttablemodel boolean class rendered regular jcheckboxes automatically. so, instead of using boolean class, used integer class simulate true , false 0 , 1.
here final program simulate jcheckbox behavior in jtable using button , image. gives great flexibility rendering different images , still jcheckbox behavior. so, enjoy!
public class tableexample extends jframe { jscrollpane pane; jpanel panel; jtable table; object[][] data; defaulttablemodel tm; renderer buttoncolumn; public tableexample(object[][] data) throws ioexception { string[] columns = {"column#1", "column#2", "column#3", "column#4", "column#5", "column#6"}; this.data = data; this.setpreferredsize(new dimension(700, 500)); this.setminimumsize(new dimension(700, 500)); this.setmaximumsize(new dimension(700, 500)); //tm = new defaulttablemodel(this.data, columns); defaulttablemodel tm = new defaulttablemodel(this.data, columns) { @override public class<?> getcolumnclass(int c) { return getvalueat(0, c).getclass(); } }; this.table = new jtable(tm); this.table.setrowheight(50); table.setdefaultrenderer(integer.class, new renderer(this, table, 5)); table.setdefaulteditor(integer.class, new editor(this, table, 5)); this.pane = new jscrollpane(this.table); this.add(this.pane); } /** * * renderer */ private class renderer extends jbutton implements tablecellrenderer { imageicon check; imageicon uncheck; int ischecked; public renderer(jframe frame, jtable table, int column) throws ioexception { image checki = imageio.read(getclass().getresource("check.png")); image unchecki = imageio.read(getclass().getresource("uncheck.png")); this.setborderpainted(false); check = new imageicon(checki); uncheck = new imageicon(unchecki); } @override public component gettablecellrenderercomponent( jtable table, object value, boolean isselected, boolean hasfocus, int row, int column) { this.ischecked = (int) value; if (ischecked == 1) { seticon(check); } else { seticon(uncheck); } return this; } } /** * * editor */ private class editor extends abstractcelleditor implements tablecelleditor, actionlistener { private jbutton editbutton; imageicon check; imageicon uncheck; int ischecked; public editor(jframe frame, jtable table, int column) throws ioexception { editbutton = new jbutton(); editbutton.addactionlistener(this); editbutton.setborderpainted(false); image checki = imageio.read(getclass().getresource("check.png")); image unchecki = imageio.read(getclass().getresource("uncheck.png")); check = new imageicon(checki); uncheck = new imageicon(unchecki); } @override public component gettablecelleditorcomponent( jtable table, object value, boolean isselected, int row, int column) { this.ischecked = (int) value; if (this.ischecked == 1) { editbutton.seticon(uncheck); this.ischecked = 0; } else { editbutton.seticon(check); this.ischecked = 1; } return editbutton; } @override public object getcelleditorvalue() { return this.ischecked; } @override public void actionperformed(actionevent e) { fireeditingstopped(); } public void updatevalue() { } } public static void main(string[] args) throws ioexception { object[][] data = { {"1", "allan", "smith", false, false, 0}, {"2", "jerry", "tucker", true, true, 1} }; tableexample app = new tableexample(data); app.setvisible(true); } }
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