Dynamic addition of JMenuItem in JMenu
I am trying to create a menu for my project. For that i have added the main menus and for each menu there will be menu item. But the problem is i will get the list of menu items for each menu , only at the runtime of my project. i.e. i wabt to add progrramatically add the menu items. Iam really confused with this. I will appriciate if any one help me on this.
And also i want to know ..is that possible to get the mouse listener for menu.
Thank in advance
Regards,
SAthish
You can add and remove menu items from the jmenu dynamically, the only thing you will have to take care of is invoking validate() after each insertion/deletion (it's a bit buggy there). All you have to do is create the items on demand and add (remove) them via the add(JMenuItem) (remove(JMenuItem)) method.
As for your second question, a JMenu is nothing but a JComponent, so you should be able to add a mouse listener like you would with any other component...
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Dynamic addition of a column to a table
Hi All,
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Message was edited by:
Bharath AkuthotaEither create it a design-time invisible and make it visible if needed (probably more simply than by code), or use some code like this:
wdDoModifyView(...)
if (<table structure changed>)
IWDTable table = (IWDTable) view.getElement("TableID");
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https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/6fdae690-0201-0010-a580-d104b459cb44
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/74cda090-0201-0010-6b91-f85b2489f765
Dynamic Creation of Checkboxes!
http://help.sap.com/saphelp_nw04/helpdata/en/24/4e70c63574ec4284d0f47324ab2d0e/frameset.htm
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Edited by: Suresh Mandalapu on Aug 24, 2008 8:33 AM -
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3. Automacaly code is generated.
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ENDIF.
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A = 1.
ELSEIF A = 1.
A = 0.
ENDIF.
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B = 1.
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B = 0.
ENDIF.
WHEN 'EXIT'.
LEAVE PROGRAM.
ENDCASE.
ENDMODULE. " USER_COMMAND_0110 INPUT
Message was edited by:
Durga Vinta -
Dynamic addition of fields in a TAB - urgent....
Hello all,
I have added a tab to the existing BSP application and the following fields will be available for user input as shown below .
start date end date
Presently we are able to give 10 rows for input. But the user might want more than 10 rows fro input.
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Any pointers are highly appreciated..Its possible. refer below thread, similar issue discussed & resolved.
Re: Add new row in Tableview
<i>*Reward each useful answer</i>
Raja T -
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<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"
xmlns:temp="mycomponents.*">
<mx:Script>
<![CDATA[
import mx.controls.Alert;
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]]>
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1 <-- root node
| 2 <-- child of 1
| | 3 <-- child of 2
| | |
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thanksSo in the worst
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v.add(rootNode);
drawTheHierarchy();
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//create a child node
DefaultMutableTreeNode childNode =
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selectedNode.add(childNode);
//and add to the vector.
v.add(childNode);
} -
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Does anybody has any idea about dynamic addition and removal of JMenuItems. I am trying to implement an exactly the same functionality as in MSWord, when you open multiple files, a single MenuItem is adding in Windows Menu.
I want when user opens a new file, a JMenuItem is created with the name of that file in Windows Menu. And when user closes that file, that menu item be removed.
Any ideas
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All the best
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import java.lang.reflect.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
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public Class c;
public Class Ray;
public Class[] x;
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public static Method[] method,usemethod;
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public static int MethodCt;
public static JList list;
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import java.awt.event.*;
import javax.swing .*;
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// Saturday 15 January 2000
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class ClassLinkList {
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The once again revised version of my sample report demonstrates how to store PBO and PAI data. Please note the following naming convention:
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gd_tabnam TYPE string,
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go_tdescr TYPE REF TO cl_abap_tabledescr,
go_typedescr TYPE REF TO cl_abap_typedescr,
gdo_data TYPE REF TO data,
gdo_handle TYPE REF TO data,
gs_component TYPE abap_compdescr,
gs_comp TYPE abap_componentdescr,
gt_components TYPE abap_component_tab.
* name TYPE string,
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* as_include TYPE abap_bool,
* suffix TYPE string,
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<gt_outtab_pbo> TYPE STANDARD TABLE, " with CELLTAB
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PARAMETER:
p_tabnam TYPE tabname DEFAULT 'KNB1'.
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START-OF-SELECTION.
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gd_tabnam = go_sdescr->get_relative_name( ).
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CATCH cx_salv_msg .
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ENDIF.
ENDDO.
TRY.
CALL METHOD cl_salv_table=>factory
IMPORTING
r_salv_table = go_table
CHANGING
t_table = <gt_outtab_pbo>.
go_table->display( ).
CATCH cx_salv_msg .
ENDTRY.
" Display component list in order to prove that indeed the field names
" are used (instead of the data element names)
TRY.
CALL METHOD cl_salv_table=>factory
IMPORTING
r_salv_table = go_table
CHANGING
t_table = gt_components.
go_table->display( ).
CATCH cx_salv_msg .
ENDTRY.
" Create data reference for structure (without CELLTAB)!!!
CREATE DATA gdo_handle TYPE HANDLE go_sdescr_new.
REFRESH: gt_components.
CLEAR: gs_comp.
gs_comp-type ?=
cl_abap_structdescr=>describe_by_data_ref( gdo_handle ).
gs_comp-name = 'DATA'.
gs_comp-as_include = abap_true.
APPEND gs_comp TO gt_components.
" Add table type as field to structure ==> complex structure
CLEAR: gs_comp.
gs_comp-type ?= cl_abap_typedescr=>describe_by_data( celltab ).
gs_comp-name = 'CELLTAB'.
APPEND gs_comp TO gt_components.
go_sdescr = cl_abap_structdescr=>create( gt_components ).
go_tdescr = cl_abap_tabledescr=>create( go_sdescr ).
CREATE DATA gdo_handle TYPE HANDLE go_tdescr.
ASSIGN gdo_handle->* TO <gt_outtab_pbo>.
* Dynamic select
SELECT * FROM (p_tabnam) UP TO 10 ROWS
INTO CORRESPONDING FIELDS OF TABLE <gt_outtab_pbo>
WHERE bukrs = '2000'.
PERFORM fill_celltab.
" Create second itab (PAI data)
CREATE DATA gdo_handle TYPE HANDLE go_tdescr.
ASSIGN gdo_handle->* TO <gt_outtab_pai>.
<gt_outtab_pai> = <gt_outtab_pbo>. " PAI data = PBO data
" Renumbering of customer makes it easier to spot the differences
LOOP AT <gt_outtab_pai> ASSIGNING <gs_outtab>.
ASSIGN COMPONENT 'KUNNR' OF STRUCTURE <gs_outtab> TO <gd_fld>.
<gd_fld> = syst-tabix. " new numbering of customers
ENDLOOP.
LOOP AT <gt_outtab_pbo> ASSIGNING <gs_outtab>.
ASSIGN COMPONENT 'KUNNR' OF STRUCTURE <gs_outtab> TO <gd_fld>.
<gd_fld> = syst-tabix. " new numbering of customers
ENDLOOP.
DELETE <gt_outtab_pbo> INDEX 3. " ==> 3rd row in PAI data is new
DELETE <gt_outtab_pai> INDEX 7. " ==> 7th row in PBO data is DELE
" Shuffle data from outtab to corresponding itab (w/o CELLTAB)
PERFORM shuffle_outtab_to_itab.
" List output
PERFORM write_list.
EXIT.
" Simplified version of table creation:
CLEAR: gdo_data.
UNASSIGN <gt_outtab_pbo>.
CREATE DATA gdo_data TYPE STANDARD TABLE OF (p_tabnam).
ASSIGN gdo_data->* TO <gt_outtab_pbo>.
END-OF-SELECTION.
*& Form FILL_CELLTAB
* text
* --> p1 text
* <-- p2 text
FORM fill_celltab .
* define local data
DATA:
ls_cell TYPE lvc_s_styl,
lt_celltab TYPE lvc_t_styl.
FIELD-SYMBOLS:
<gs_struc> TYPE ANY,
<lt_celltab> TYPE lvc_t_styl.
" Create dummy entry for local CELLTAB
ls_cell-fieldname = 'BUKRS'.
ls_cell-style = cl_gui_alv_grid=>mc_style_enabled.
INSERT ls_cell INTO TABLE lt_celltab.
LOOP AT <gt_outtab_pbo> ASSIGNING <gs_struc>.
ASSIGN COMPONENT 'CELLTAB' OF STRUCTURE <gs_struc> TO <lt_celltab>.
<lt_celltab> = lt_celltab.
" No MODIFY required because we are working with the field symbol
ENDLOOP.
ENDFORM. " FILL_CELLTAB
*& Form SHUFFLE_OUTTAB_TO_ITAB
* text
* --> p1 text
* <-- p2 text
FORM shuffle_outtab_to_itab .
go_tdescr = cl_abap_tabledescr=>create( go_sdescr_new ).
CREATE DATA gdo_handle TYPE HANDLE go_tdescr.
ASSIGN gdo_handle->* TO <gt_itab_pbo>.
go_tdescr = cl_abap_tabledescr=>create( go_sdescr_new ).
CREATE DATA gdo_handle TYPE HANDLE go_tdescr.
ASSIGN gdo_handle->* TO <gt_itab_pai>.
LOOP AT <gt_outtab_pbo> ASSIGNING <gs_outtab>.
ASSIGN COMPONENT 'DATA' OF STRUCTURE <gs_outtab> TO <gs_itab>.
APPEND <gs_itab> TO <gt_itab_pbo>.
ENDLOOP.
LOOP AT <gt_outtab_pai> ASSIGNING <gs_outtab>.
ASSIGN COMPONENT 'DATA' OF STRUCTURE <gs_outtab> TO <gs_itab>.
APPEND <gs_itab> TO <gt_itab_pai>.
ENDLOOP.
ENDFORM. " SHUFFLE_OUTTAB_TO_ITAB
*& Form WRITE_LIST
* text
* --> p1 text
* <-- p2 text
FORM write_list .
WRITE: / 'PBO data:'.
LOOP AT <gt_itab_pbo> ASSIGNING <gs_itab>.
WRITE: / 'Record No.=', syst-tabix, '==>'.
DO.
ASSIGN COMPONENT syst-index OF STRUCTURE <gs_itab> TO <gd_fld>.
IF ( syst-subrc NE 0 ).
EXIT.
ENDIF.
WRITE: <gd_fld>.
ENDDO.
ENDLOOP.
SKIP 2.
WRITE: / 'PAI data:'.
LOOP AT <gt_itab_pai> ASSIGNING <gs_itab>.
WRITE: / 'Record No.=', syst-tabix, '==>'.
DO.
ASSIGN COMPONENT syst-index OF STRUCTURE <gs_itab> TO <gd_fld>.
IF ( syst-subrc NE 0 ).
EXIT.
ENDIF.
WRITE: <gd_fld>.
ENDDO.
ENDLOOP.
ENDFORM. " WRITE_LIST
Finally, if you want to know the <i>differences </i>between PAI and PBO data, that is which records have been deleted, updated or inserted have a look at my code sample
<a href="https://wiki.sdn.sap.com/wiki/display/Snippets/ComparingTwoInternalTables-AGeneric+Approach">Comparing Two Internal Tables - A Generic Approach</a>
Regards
Uwe -
Dynamic Programming - RTTC - Appending lines
I give up! Maybe someone else can help me with this Dynamic Programming problem.
I am using RTTC to create an itab. Now I want to append lines and for some reason can't seem to crack the syntax I need.
My latest attempt looks like this...
FIELD-SYMBOLS: <table> TYPE ANY TABLE,
<row> TYPE ANY.
lo_sdescr = cl_abap_structdescr=>create( lt_components ).
lo_tdescr = cl_abap_tabledescr=>create( lo_sdescr ).
CREATE DATA lr_alloc->alloc_table TYPE HANDLE lo_tdescr.
CREATE DATA lr_struct TYPE HANDLE lo_rdescr.
ASSIGN lr_alloc->alloc_table->* TO <table>.
APPEND INITIAL LINE TO <table> ASSIGNING <row>.
The syntax check I get on the APPEND statement is "You cannot use explicit or implicit index operations on tables with type "ANY TABLE".
All the doco and examples I can find use a simple "SELECT * ... INTO CORRESPONDING FIELDS OF TABLE <table>" syntax which it not what I need to do.
Any help it appreciated.
Thanks
Graham RobboHello Graham
The solution is quite simple (at least to overcome your syntax error):
FIELD-SYMBOLS:
<gt_itab> TYPE STANDARD TABLE, " use STANDARD instead of ANY
<gs_struc> TYPE ANY.
*& Report Z_RTTI_CREATE_COMPLEX_ITAB
*& NOTE: revised version of ZUS_SDN_RTTI_CREATE_STRUCTURES
*& Thread: Dynamic Programming - RTTC - Appending lines
*& <a class="jive_macro jive_macro_thread" href="" __jive_macro_name="thread" modifiedtitle="true" __default_attr="980407"></a>
REPORT z_rtti_create_complex_itab.
TYPE-POOLS: abap.
DATA:
celltab TYPE lvc_t_styl. " becomes field of complex itab
DATA:
gd_tabnam TYPE string,
gd_tabfield TYPE string,
go_table TYPE REF TO cl_salv_table,
go_sdescr TYPE REF TO cl_abap_structdescr,
go_sdescr_new TYPE REF TO cl_abap_structdescr,
go_tdescr TYPE REF TO cl_abap_tabledescr,
gdo_data TYPE REF TO data,
gdo_handle TYPE REF TO data,
gs_component TYPE abap_compdescr,
gs_comp TYPE abap_componentdescr,
gt_components TYPE abap_component_tab.
FIELD-SYMBOLS:
<gt_itab> TYPE STANDARD TABLE,
<gs_struc> TYPE ANY.
PARAMETER:
p_tabnam TYPE tabname DEFAULT 'KNB1'.
START-OF-SELECTION.
" Describe structure
go_sdescr ?= cl_abap_structdescr=>describe_by_name( p_tabnam ).
gd_tabnam = go_sdescr->get_relative_name( ).
" Simulate dynamic addition of columns
LOOP AT go_sdescr->components INTO gs_component.
" Build fieldname
CONCATENATE gd_tabnam gs_component-name INTO gd_tabfield
SEPARATED BY '-'.
CLEAR: gs_comp.
gs_comp-type ?= cl_abap_datadescr=>describe_by_name( gd_tabfield ).
gs_comp-name = gs_component-name.
APPEND gs_comp TO gt_components.
ENDLOOP.
" Create instances of dynamic structure and dynamic internal table
go_sdescr_new = cl_abap_structdescr=>create( gt_components ).
go_tdescr = cl_abap_tabledescr=>create( go_sdescr_new ).
" Create data refence followed by table creation
CREATE DATA gdo_handle TYPE HANDLE go_sdescr_new.
ASSIGN gdo_handle->* TO <gs_struc>.
CREATE DATA gdo_handle TYPE HANDLE go_tdescr. " !!!
ASSIGN gdo_handle->* TO <gt_itab>.
APPEND INITIAL LINE TO <gt_itab> ASSIGNING <gs_struc>.
TRY.
CALL METHOD cl_salv_table=>factory
IMPORTING
r_salv_table = go_table
CHANGING
t_table = <gt_itab>.
go_table->display( ).
CATCH cx_salv_msg .
ENDTRY.
END-OF-SELECTION.
Regards
Uwe -
Is it possible to change the default border on a JMenu?
Hello,
I'm working on an application that has a simple menu system. Clicking a button opens a JPopupMenu, which contains JMenu and JMenuItem objects. I want to change the border on the JPopupMenu and its JMenu submenus to a simple line border. Calling setBorder on the JPopupMenu works just fine, but calling it on JMenu doesn't change the border. The following code illustrates my point.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class MenuTest {
JFrame f;
JPanel p;
JPopupMenu popup;
JMenu mainMenu;
JMenu subMenu;
JButton showPopupButton;
public MenuTest()
f = new JFrame("Popup Menu Test");
p = new JPanel();
popup = new JPopupMenu();
subMenu = new JMenu("Submenu");
mainMenu = new JMenu("Main Menu");
JMenuItem m;
for (int i=0; i < 3; i++) {
m = new JMenuItem("Submenu item " + i);
subMenu.add(m);
// This doesn't work. The border remains set to the default Windows bevel.
subMenu.setBorder(BorderFactory.createLineBorder(Color.BLACK));
popup.add(subMenu);
for (int i=0; i < 5; i++) {
m = new JMenuItem("Main menu item " + i);
popup.add(m);
showPopupButton = new JButton("Show Popup");
showPopupButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e)
Component c = (Component) e.getSource();
popup.show(c, 0, c.getHeight());
p.add(showPopupButton);
// This works. It sets the border of the popup menu to a black line border.
popup.setBorder(BorderFactory.createLineBorder(Color.BLACK));
f.getContentPane().add(p);
f.setSize(400, 300);
f.setVisible(true);
public static void main(String[] args)
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
catch (Exception e) { }
new MenuTest();
}Any ideas? Do I have to extend JMenu and do some custom painting to accomplish this? I'd also like to change the roll-over color on the menu items, but neither JMenu nor JPopupMenu seem to support that. It looks like borders and rollover colors are L&F dependent.
Thanks in advance for any help.import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;
public class Example {
public static void main(String[] args) throws Exception {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
UIManager.put("MenuItem.selectionForeground", Color.GREEN);
UIManager.put("MenuItem.selectionBackground", Color.BLACK);
JMenuBar mb = new JMenuBar();
Border border = BorderFactory.createRaisedBevelBorder();
JMenu file = new BorderedMenu("File", border);
file.add(new JMenuItem("New"));
file.add(new JMenuItem("Open"));
file.add(new JMenuItem("Close"));
JMenu edit = new BorderedMenu("Edit", border);
edit.add(new JMenuItem("Cut"));
edit.add(new JMenuItem("Paste"));
edit.add(new JMenuItem("Copy"));
mb.add(file);
mb.add(edit);
JFrame f = new JFrame("Example");
f.setJMenuBar(mb);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(400,300);
f.setLocationRelativeTo(null);
f.setVisible(true);
static class BorderedMenu extends JMenu {
private Border border;
public BorderedMenu(String text, Border border) {
super(text);
this.border = border;
public JPopupMenu getPopupMenu() {
JPopupMenu p = super.getPopupMenu();
p.setBorder(border);
return p;
}By the way, I find the following program handy when snooping around the UI defaults.
import java.awt.*;
import java.util.*;
import javax.swing.*;
public class Listing {
public static void main(String[] args) throws Exception {
UIDefaults defs = UIManager.getLookAndFeelDefaults();
ArrayList list = new ArrayList();
for(Iterator i = defs.entrySet().iterator(); i.hasNext(); ) {
Map.Entry entry = (Map.Entry) i.next();
Object key = entry.getKey();
Object value = entry.getValue();
if (value instanceof Color)
list.add(key);
Collections.sort(list);
JPanel panel = new JPanel(new GridLayout(0,1));
String lastCompName = "";
for(int i=0; i<list.size(); ++i) {
Object key = list.get(i);
String text = key.toString();
int dotIndex = text.indexOf('.');
String compName = text.substring(0, dotIndex > 0 ? dotIndex : text.length());
if (!compName.equals(lastCompName)) {
lastCompName = compName;
panel.add(new JLabel());
Color color = defs.getColor(key);
JLabel label = new JLabel(text, new ColorIcon(color), JLabel.LEFT);
panel.add(label);
JFrame f = new JFrame("Listing");
f.getContentPane().add(new JScrollPane(panel));
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.pack();
f.setSize(f.getWidth(), 600);
f.setLocationRelativeTo(null);
f.setVisible(true);
class ColorIcon implements Icon {
public static final int ICON_WIDTH = 20;
public static final int ICON_HEIGHT = 16;
private Color color;
public ColorIcon(Color color) {
this.color = color;
public int getIconWidth() {
return ICON_WIDTH;
public int getIconHeight() {
return ICON_HEIGHT;
public void paintIcon(Component c, Graphics g, int x, int y) {
if (color != null) {
Color old = g.getColor();
g.setColor(color);
g.fillRect(x, y, ICON_WIDTH, ICON_HEIGHT);
g.setColor(Color.BLACK);
g.drawRect(x, y, ICON_WIDTH-1, ICON_HEIGHT-1);
g.setColor(old);
} -
Error in Right-to-Left Jmenu movement
Hi everybody,
I started using Java 1.5 recently, I found that it does not behave correctly regarding arrow key movements in right-to-left orientation (up,down, left and right), as the following piece of code shows:
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
public class test14 extends JFrame {
JMenuBar jmenubar = new JMenuBar();
JMenu Jmenu;
JMenuItem mi;
public test14() {
super("Menu test..");
setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
enableEvents(AWTEvent.KEY_EVENT_MASK);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
Exit();
setMenu();
jmenubar.applyComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
Dimension max_size = Toolkit.getDefaultToolkit().getScreenSize();
this.setSize(max_size.width,max_size.height);
this.setLocation(1,1);
show();
public void setMenu() {
int i,c;
JMenu Jmenu = null;
JMenuItem mi;
Jmenu = new JMenu("ABCDEF");
Jmenu.setMnemonic(KeyEvent.VK_ALT);
for (i=0; i < 5;i++) {
Jmenu = new JMenu("ABCDEF");
if (i == 0) Jmenu.setMnemonic(KeyEvent.VK_ALT);
mi = new JMenuItem("abcdef");
Jmenu.add(mi);
jmenubar.add(Jmenu);
setJMenuBar(jmenubar);
private void Exit() {
setVisible(false);
//setEnabled(false);
System.exit(0);
//----- MAIN function ------------
public static void main(String args[]) {
new test14();
}ThanksThank you for considering this issue!
Yes, I think this solution is sufficient to resolve it.
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