Change background color for JFrame
hi,
i want to change background color of JFrame. In my application i didn't create any panels.
my code like this,
Frame myFrame = new JFrame ( " Grid Layout Frame ");
myFrame.setSize(500,500);
myFrame.getContentPane().setBackground(Color.white);
myFrame.setVisible(true);thanks,
Balaji
You don't get a white frame when you run this program?import java.awt.*;
import javax.swing.*;
public class junk
public static void main(String[] args) throws Exception
JFrame f = new JFrame("Hello");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(500,500);
f.getContentPane().setBackground(Color.white);
f.setVisible(true);
}
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i_x denotes first column and not characctersitic 1.
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How to give Common Background color for all JPanels in My Swing application
Hi All,
I am developing a swing application using The Swing Application Framework(SAF)(JSR 296). I this application i have multiple JPanel's embedded in a JTabbedPane. In this way i have three JTabbedPane embedded in a JFrame.
Now is there any way to set a common background color for the all the JPanel's available in the application??
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Nishanth.CIt is not the fault of NetBeans' GUI builder, JPanels are opaque by default, I mean whether you use Netbeans or not.Thank you!
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NetBeans's definitely innocent then, and indeed using it would be an advantage (ctrl-click all JPanels in a form and edit the common opaque property to false) over manually coding
To handle this it would be better idea to make a subclass of JPanel and override isOpaque() to return false. Then use this 'Trasparent Panel' for all the panels where ever transparency is required.I beg to differ. From a design standpoint, I'd find it terrible (in the pejorative sense of the word) to design a subclass to inconsistently override a getter whereas the standard API already exposes the property (both get and set) for what it's meant: specify whether the panel is opaque.
Leveraging this subclass would mean changing all lines where a would-be-transparent JPanel is currently instantiated, and instantiate the subclass instead.
If you're editing all such lines anyway, you might as well change the explicit new JPanel() for a call to a factory method createTransparentJPanel(); this latter could, at the programmer's discretion, implement transparency whichever way makes the programmer's life easier (subclass if he pleases, although that makes me shudder, or simply call thePanel.setOpaque(false) before returning the panel). That way the "transparency" code is centralized in a single easy to maintain location.
I had to read the code for that latter's UI classes to find out the keys to use (+Panel.background+, Label.foreground, etc.), as I happened to not find this info in an authoritative document - I see that you seem to know thoses keys, may I ask you where you got them from?
One of best utilities I got from this forum, written by camickr makes getting these keys and their values very easy. You can get it from his blog [(->link)|http://tips4java.wordpress.com/2008/10/09/uimanager-defaults/]
Definitely. I bit a pair of knucles off when discovered it monthes after cumbersomely traversing the BasicL&F code...
Still, it is a matter-of-fact approach (and this time I don't mean that to sound pejorative), that works if you can test the result for a given JDK version and L&F, but doesn't guarantee that these keys are there to stand - an observation, but not a specification.
Thanks TBM for highlighting this blog entry, that's the best keys list device I have found so far, but the questions still holds as to what specifies the keys.
Edited by: jduprez on Feb 15, 2010 10:07 AM -
Background color for column heading
Hi,
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Thanks in advanceG'day Karen,
Thanks for ur reply.
I have seen this note before, its not that the header colors have changed after latest SP was applied in our systems. Also the ABAP and JAVA stacks are in sync.
Scenario is that we are trying to set up a new Portal theme for Enterprise Reporting with some specific color codes (hex codes).
What i have observed is Characterstics Header background color is set up using the element "Background Color of Level 1 Column Heading ".
While the Background color for Key Figures header is using element "Background Color of Level 2 Column Heading ".
But the problem is element "Background Color of Level 2 Column Heading " is also used as the Background color for Standard Characterstics cell, so if we make it same the whole report of the same color, which we dont want.
Requirement is to get the same Background color for Header cells (both Char. and Key Figure headers).
Any further suggestions will be appreciated.
Thanks
CK -
Changing background color in JTable, only changes one row at a time...
I'm trying to change the color of rows when the 5th column meets certain criteria. I think I'm very close, but I've hit a wall.
What's happening is the row will change color as intended when the text in the 5th column is "KEY WORD", but when I type "KEY WORD" in a different column it will set the first row back to the regular colors. I can easily see why it's doing this, everytime something is changed it rerenders every cell, and the listener only checks the cell that was just changed if it met the "KEY WORD" condition, so it sets every cell (including the previous row that still meets the condition) to the normal colors. I can't come up with a good approach to changing the color for ALL rows that meet the condition. Any help would be appreciated.
In this part of the CellRenderer:
if (isSelected)
color = Color.red;
else
color = Color.blue;
if (hasFocus)
color = Color.yellow;
//row that meets special conditions
if(row == specRow && col == specCol)
color = color.white; I was thinking an approach would be to set them to their current color except for the one that meets special conditions, but the two problems with that are I can't figure out how to getColor() from the table, and I'm not sure how I would initially set the colors.
Here's the rest of the relevant code:
public void tableChanged(TableModelEvent e)
int firstRow = e.getFirstRow();
int lastRow = e.getLastRow();
int colIndex = e.getColumn();
if(colIndex == 4)
String value = (String)centerTable.getValueAt(firstRow, colIndex);
// check for our special selection criteria
if(value.equals("KEY WORD"))
for(int j = 0; j < centerTable.getColumnCount(); j++)
CellRenderer renderer =
(CellRenderer)centerTable.getCellRenderer(firstRow, j);
renderer.setSpecialSelection(firstRow, j);
import javax.swing.table.*;
import javax.swing.*;
import java.awt.Component;
import java.awt.Color;
public class CellRenderer extends DefaultTableCellRenderer
int specRow, specCol;
public CellRenderer()
specRow = -1;
specCol = -1;
public Component getTableCellRendererComponent(JTable table,
Object value,
boolean isSelected,
boolean hasFocus,
int row, int col)
setHorizontalAlignment(JLabel.CENTER);
Color color = Color.green;
if (isSelected)
color = Color.red;
else
color = Color.blue;
if (hasFocus)
color = Color.yellow;
if(row == specRow && col == specCol)
color = color.white;
//setForeground(color);
setBackground(color);
setText((String)value);
return this;
public void setSpecialSelection(int row, int col)
specRow = row;
specCol = col;
}If I'm still stuck and more of my code is needed, I'll put together a smaller program that will isolate the problem tomorrow.That worked perfectly for what I was trying to do, but I've run into another problem. I'd like to change the row height when the conditions are met. What I discovered is that this creates an infinite loop since the resizing triggers the renderer, which resizes the row again, etc,. What would be the proper way to do this?
Here's the modified code from the program given in the link. All I did was declare the table for the class, and modify the if so I could add the "table.setRowHeight(row, 30);" line.
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.border.*;
public class TableRowRenderingTip extends JPanel
JTable table;
public TableRowRenderingTip()
Object[] columnNames = {"Type", "Company", "Shares", "Price", "Boolean"};
Object[][] data =
{"Buy", "IBM", new Integer(1000), new Double(80.5), Boolean.TRUE},
{"Sell", "Dell", new Integer(2000), new Double(6.25), Boolean.FALSE},
{"Short Sell", "Apple", new Integer(3000), new Double(7.35), Boolean.TRUE},
{"Buy", "MicroSoft", new Integer(4000), new Double(27.50), Boolean.FALSE},
{"Short Sell", "Cisco", new Integer(5000), new Double(20), Boolean.TRUE}
DefaultTableModel model = new DefaultTableModel(data, columnNames)
public Class getColumnClass(int column)
return getValueAt(0, column).getClass();
JTabbedPane tabbedPane = new JTabbedPane();
tabbedPane.addTab("Alternating", createAlternating(model));
tabbedPane.addTab("Border", createBorder(model));
tabbedPane.addTab("Data", createData(model));
add( tabbedPane );
private JComponent createAlternating(DefaultTableModel model)
JTable table = new JTable( model )
public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
Component c = super.prepareRenderer(renderer, row, column);
// Alternate row color
if (!isRowSelected(row))
c.setBackground(row % 2 == 0 ? getBackground() : Color.LIGHT_GRAY);
return c;
table.setPreferredScrollableViewportSize(table.getPreferredSize());
table.changeSelection(0, 0, false, false);
return new JScrollPane( table );
private JComponent createBorder(DefaultTableModel model)
JTable table = new JTable( model )
private Border outside = new MatteBorder(1, 0, 1, 0, Color.RED);
private Border inside = new EmptyBorder(0, 1, 0, 1);
private Border highlight = new CompoundBorder(outside, inside);
public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
Component c = super.prepareRenderer(renderer, row, column);
JComponent jc = (JComponent)c;
// Add a border to the selected row
if (isRowSelected(row))
jc.setBorder( highlight );
return c;
table.setPreferredScrollableViewportSize(table.getPreferredSize());
table.changeSelection(0, 0, false, false);
return new JScrollPane( table );
public JComponent createData(DefaultTableModel model)
table = new JTable( model )
public Component prepareRenderer(TableCellRenderer renderer, int row, int column)
Component c = super.prepareRenderer(renderer, row, column);
// Color row based on a cell value
if (!isRowSelected(row))
c.setBackground(getBackground());
String type = (String)getModel().getValueAt(row, 0);
if ("Buy".equals(type)) {
table.setRowHeight(row, 30);
c.setBackground(Color.GREEN);
if ("Sell".equals(type)) c.setBackground(Color.YELLOW);
return c;
table.setPreferredScrollableViewportSize(table.getPreferredSize());
table.changeSelection(0, 0, false, false);
return new JScrollPane( table );
public static void main(String[] args)
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
public static void createAndShowGUI()
JFrame.setDefaultLookAndFeelDecorated(true);
JFrame frame = new JFrame("Table Row Rendering");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add( new TableRowRenderingTip() );
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}Edited by: scavok on Apr 26, 2010 6:43 PM -
How to change background color in online editor
How to change background color in online editor
Jeff,
if you try to change all the plsql keywords to the same background color (that is not either white or black or blue) via the options panel in SQL Developer (Code Editor > PLSQL syntax colors), you will get the new background color in the worksheet only for the areas with plsql text, while the areas without any text will have the same background color as the base color scheme you started with. This means that there is no way to change the "general background" color via the options panel, but you have to use the same background color of one of the predefined color schemes.
This seems to me a bug, but probably it's not considered high priority, so it will not be fixed for the time being.
I would like to stress the fact that being able to change the color scheme of the development environment that you use every day about 8 hours a day can make quite a difference on your eyes at the end of the day.
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how to change background color in photoshop cs3
Please help me...Background for what? You need to explain better and be more specific.
Mylenium -
How to set background color for selected days in DateChooser
How to set background color for selected days. I created
checkbox for each day [Son,Mon,Tue,Wed,Thu,Fri,Sat] and a
DateChooser, I want to change the background color for the selected
day when i click on a button after selecting the desired checkboxs
[ monthly wise/yearly wise]
Thanks in advanceThere is no button involved in the following code, but it may
be of use to you:
<?xml version="1.0"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
creationComplete="init()">
<mx:Script>
<![CDATA[
private var origColor:uint;
private function init():void {
origColor = dc.getStyle("selectionColor");
public function setBackGrdColors(newColor:uint):void {
dc.setStyle("selectionColor", origColor);
if(dc.selectedDate){
var dayOfWeek:Number = dc.selectedDate.day;
else{
return;
switch(dayOfWeek) {
case 0:
if(sun.selected)
dc.setStyle("selectionColor", newColor);
break;
case 1:
if(mon.selected)
dc.setStyle("selectionColor", newColor);
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case 2:
if(tue.selected)
dc.setStyle("selectionColor", newColor);
break;
case 3:
if(wed.selected)
dc.setStyle("selectionColor", newColor);
break;
case 4:
if(thu.selected)
dc.setStyle("selectionColor", newColor);
break;
case 5:
if(fri.selected)
dc.setStyle("selectionColor", newColor);
break;
case 6:
if(sat.selected)
dc.setStyle("selectionColor", newColor);
break;
default:
break;
]]>
</mx:Script>
<mx:VBox horizontalAlign="center" verticalGap="20">
<mx:DateChooser id="dc" textAlign="left"
change="setBackGrdColors(cellColor.selectedColor)"/>
<mx:HBox width="100%" horizontalAlign="center">
<mx:CheckBox id="sun" label="Sun"/>
<mx:CheckBox id="mon" label="Mon"/>
<mx:CheckBox id="tue" label="Tue"/>
<mx:CheckBox id="wed" label="Wed"/>
</mx:HBox>
<mx:HBox width="100%" horizontalAlign="center">
<mx:CheckBox id="thu" label="Thu"/>
<mx:CheckBox id="fri" label="Fri"/>
<mx:CheckBox id="sat" label="Sat"/>
</mx:HBox>
<mx:HBox width="300" horizontalAlign="center">
<mx:Label text="Background Color" />
<mx:ColorPicker id="cellColor"
selectedColor="#FF00FF"/>
</mx:HBox>
</mx:VBox>
</mx:Application> -
Change background color during text edit mode
THis is a wacky problem...
I have a presentation template. The slide master has white copy in the title and black copy in the body/bulleted list.
When I try to use the template and edit the title copy, the background color for editing that line is white, just like the text, so I can't see what I'm typing. I can't figure out how to change the background color during text edit mode so that I can actually see what I'm typing. Is there a way to make this transparent?
For some reason, the body copy edit works fine: black text edited in either a white or transparent background color.
help!THis is a wacky problem...
I have a presentation template. The slide master has white copy in the title and black copy in the body/bulleted list.
When I try to use the template and edit the title copy, the background color for editing that line is white, just like the text, so I can't see what I'm typing. I can't figure out how to change the background color during text edit mode so that I can actually see what I'm typing. Is there a way to make this transparent?
For some reason, the body copy edit works fine: black text edited in either a white or transparent background color.
help! -
HI guys,
I have a question:
In the Form 6I exists a Text Item with own scrollbar.
Are there any options to change background color on scrollbar attached to that item?
Thanks in advance,
John.
Message was edited by:
IMJLIn the Form 6I exists a Text Item with own scrollbar.If you rae talking about text item, you can set property word yes and vertical scroll = yes
For second question ,as Francois said, the answer is No -
Change background color of textbox based on non-visible value
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How and where can I change the background color for the thumbnails listed in my pdf folder? Currently they are sort of pink and I would like to change the color to white.
Can you post this on the PVII support forums?
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
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- Macromedia (MM) Technotes
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"dflorentine" <[email protected]> wrote in
message
news:eeva67$jd8$[email protected]..
> Hi,
> Just purchased Image Gallery Magic. Since it's
overwhelmingly praised on
> this
> forum, I am hoping someone here can quickly help me with
a couple
> problems.
> First - here's the link:
>
www.intelligentbydesigngraphics.com/transcendingtime/weddings.html
>
> Questions:
> 1) I've inserted the gallery into an existing site that
has a black
> background. There must be a way to change the background
color of the
> thumbnail panel to something other than white, but how?
> 2) As you roll your mouse over the thumbnail panel
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>
> Thanks in advance for any advice!
> P.S. I am a novice, so please take that into
consideration before
> replying! ;)
>
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Set Background color for headers in excel
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v_fh UTL_FILE.file_type;
v_dir VARCHAR2 (30) := 'my dir';
v_file VARCHAR2 (30) := 'test.xls';
PROCEDURE run_query (p_sql IN VARCHAR2)
IS
v_v_val VARCHAR2 (4000);
v_n_val NUMBER;
v_d_val DATE;
v_ret NUMBER;
c NUMBER;
d NUMBER;
col_cnt INTEGER;
f BOOLEAN;
rec_tab DBMS_SQL.desc_tab;
col_num NUMBER;
BEGIN
c := DBMS_SQL.open_cursor;
-- parse the SQL statement
DBMS_SQL.parse (c, p_sql, DBMS_SQL.native);
-- start execution of the SQL statement
d := DBMS_SQL.EXECUTE (c);
-- get a description of the returned columns
DBMS_SQL.describe_columns (c, col_cnt, rec_tab);
-- bind variables to columns
FOR j IN 1 .. col_cnt
LOOP
CASE rec_tab (j).col_type
WHEN 1
THEN
DBMS_SQL.define_column (c, j, v_v_val, 4000);
WHEN 2
THEN
DBMS_SQL.define_column (c, j, v_n_val);
WHEN 12
THEN
DBMS_SQL.define_column (c, j, v_d_val);
ELSE
DBMS_SQL.define_column (c, j, v_v_val, 4000);
END CASE;
END LOOP;
-- Output the column headers
UTL_FILE.put_line (v_fh, '<ss:Row>');
FOR j IN 1 .. col_cnt
LOOP
UTL_FILE.put_line (v_fh, '<ss:Cell>');
UTL_FILE.put_line (v_fh,
'<ss:Data ss:Type="String">'
|| rec_tab (j).col_name
|| '</ss:Data>'
UTL_FILE.put_line (v_fh, '</ss:Cell>');
END LOOP;
UTL_FILE.put_line (v_fh, '</ss:Row>');
-- Output the data
LOOP
v_ret := DBMS_SQL.fetch_rows (c);
EXIT WHEN v_ret = 0;
UTL_FILE.put_line (v_fh, '<ss:Row>');
FOR j IN 1 .. col_cnt
LOOP
CASE rec_tab (j).col_type
WHEN 1
THEN
DBMS_SQL.COLUMN_VALUE (c, j, v_v_val);
UTL_FILE.put_line (v_fh, '<ss:Cell>');
UTL_FILE.put_line (v_fh,
'<ss:Data ss:Type="String">'
|| v_v_val
|| '</ss:Data>'
UTL_FILE.put_line (v_fh, '</ss:Cell>');
WHEN 2
THEN
DBMS_SQL.COLUMN_VALUE (c, j, v_n_val);
UTL_FILE.put_line (v_fh, '<ss:Cell>');
UTL_FILE.put_line (v_fh,
'<ss:Data ss:Type="Number">'
|| TO_CHAR (v_n_val)
|| '</ss:Data>'
UTL_FILE.put_line (v_fh, '</ss:Cell>');
WHEN 12
THEN
DBMS_SQL.COLUMN_VALUE (c, j, v_d_val);
UTL_FILE.put_line (v_fh,
'<ss:Cell ss:StyleID="OracleDate">'
UTL_FILE.put_line (v_fh,
'<ss:Data ss:Type="DateTime">'
|| TO_CHAR (v_d_val,
'YYYY-MM-DD"T"HH24:MI:SS'
|| '</ss:Data>'
UTL_FILE.put_line (v_fh, '</ss:Cell>');
ELSE
DBMS_SQL.COLUMN_VALUE (c, j, v_v_val);
UTL_FILE.put_line (v_fh, '<ss:Cell>');
UTL_FILE.put_line (v_fh,
'<ss:Data ss:Type="String">'
|| v_v_val
|| '</ss:Data>'
UTL_FILE.put_line (v_fh, '</ss:Cell>');
END CASE;
END LOOP;
UTL_FILE.put_line (v_fh, '</ss:Row>');
END LOOP;
DBMS_SQL.close_cursor (c);
END;
PROCEDURE start_workbook
IS
BEGIN
UTL_FILE.put_line (v_fh, '<?xml version="1.0"?>');
UTL_FILE.put_line
(v_fh,
'<ss:Workbook xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet">'
END;
PROCEDURE end_workbook
IS
BEGIN
UTL_FILE.put_line (v_fh, '</ss:Workbook>');
END;
PROCEDURE start_worksheet (p_sheetname IN VARCHAR2)
IS
BEGIN
UTL_FILE.put_line (v_fh,
'<ss:Worksheet ss:Name="' || p_sheetname || '">'
UTL_FILE.put_line (v_fh, '<ss:Table>');
END;
PROCEDURE end_worksheet
IS
BEGIN
UTL_FILE.put_line (v_fh, '</ss:Table>');
UTL_FILE.put_line (v_fh, '</ss:Worksheet>');
END;
PROCEDURE set_date_style
IS
BEGIN
UTL_FILE.put_line (v_fh, '<ss:Styles>');
UTL_FILE.put_line (v_fh, '<ss:Style ss:ID="OracleDate">');
UTL_FILE.put_line
(v_fh,
'<ss:NumberFormat ss:Format="dd/mm/yyyy\ hh:mm:ss"/>'
UTL_FILE.put_line (v_fh, '</ss:Style>');
UTL_FILE.put_line (v_fh, '</ss:Styles>');
END;
BEGIN
v_fh := UTL_FILE.fopen (v_dir, v_file, 'w', 32767);
start_workbook;
set_date_style;
start_worksheet ('OM');
run_query ('select PARTY_ID,PARTY_NAME from HZ_PARTIES
where PARTY_ID<1080');
end_worksheet;
start_worksheet ('PO');
run_query ('SELECT AGENT_ID,TYPE_LOOKUP_CODE FROM PO_HEADERS_ALL
WHERE PO_HEADER_ID<20');
end_worksheet;
end_workbook;
UTL_FILE.fclose (v_fh);
END;
Here i will get two outputs in same excel with different spread sheets,
now i want to set background color for headers i
ex:PARTY_ID,PARTY_NAME,AGENT_ID,TYPE_LOOKUP_CODE are the headers,in excel output i want background color as blue.
Please do need full help,its urgent req.Hello,
open the file in Excel and save it, just to ensure that Excel writes all the additional stuff it thinks is necessary.
Now change the background colour of the header and save the file again but with a different name.
Open both files in a text editor and look at the differences. That's what you need to change in your code.
Alternatively you can use packages like xml_spreadsheet or ExcelDocumentType, both write the same file format that you use in your code and you don't have to reinvent the wheel.
Regards
Marcus
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