Home » Eclipse Projects » Standard Widget Toolkit (SWT) » ExpandBar not expanded properly(When ExpandedBar is expanded, the contect of the ExpandBar is not drawn properly)
| ExpandBar not expanded properly [message #538236] |
Mon, 07 June 2010 01:06  |
 No real name
Messages: 6
Registered: June 2010 |
Junior Member |
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I have a rather complex screen:
- top part is an ExpandBar containing a Composite
- a bottom part is a Composite with a table in it
When the top ExpandBar is collapsed and expanded, the content of which is not drawn correctly. But it does redraw properly if I resize the window.
I've tried a lot of ways of calculating the ExpandItem height, layout and pack. Nothing seems to work. Please help. Thanks
package test;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ControlAdapter;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.events.ExpandEvent;
import org.eclipse.swt.events.ExpandListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.DateTime;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.ExpandBar;
import org.eclipse.swt.widgets.ExpandItem;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.ScrollBar;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.Text;
public class LogQuery {
private static final int NUM_OF_COLUMNS = 4;
private Composite parent = null;
Control newComp = null;
private Table table = null;
public static final String[] LOG_LEVELS = new String[]{"TRACE", "DEBUG", "INFO", "WARN", "ERROR", "FATAL"};
public Control createTabFolderPage(Composite tabFolder) {
parent = tabFolder;
final Composite composite = new Composite(parent, SWT.NONE);
composite.setLayout(new GridLayout(1, false));
GridData gridData = new GridData();
gridData.horizontalAlignment = GridData.FILL;
gridData.grabExcessHorizontalSpace = true;
final ExpandBar bar = new ExpandBar (composite, SWT.V_SCROLL);
bar.setLayoutData(gridData);
final Composite page = new Composite(bar, SWT.NONE);
GridLayout gridLayout = new GridLayout(NUM_OF_COLUMNS, false);
gridLayout.horizontalSpacing = 20;
page.setLayout(gridLayout);
Label originLabel = new Label(page, SWT.NONE);
originLabel.setText("Origin");
Text orginText = new Text(page, SWT.NONE);
gridData = new GridData();
gridData.horizontalAlignment = GridData.FILL;
gridData.grabExcessHorizontalSpace = true;
gridData.horizontalSpan=2;
orginText.setLayoutData(gridData);
Label logLabel = new Label(page, SWT.NONE);
logLabel.setText("Log Levels");
Label hostnameLabel = new Label(page, SWT.NONE);
hostnameLabel.setText("Host Name");
Text hostText = new Text(page, SWT.NONE);
gridData = new GridData();
gridData.horizontalAlignment = GridData.FILL;
gridData.grabExcessHorizontalSpace = true;
gridData.horizontalSpan=2;
hostText.setLayoutData(gridData);
List list = new List(page, SWT.BORDER | SWT.MULTI);
list.setItems(LOG_LEVELS);
list.setLayoutData(gridData);
gridData = new GridData();
gridData.horizontalAlignment = GridData.FILL;
gridData.verticalAlignment = GridData.FILL;
gridData.grabExcessHorizontalSpace = true;
gridData.grabExcessVerticalSpace = true;
gridData.verticalSpan=4;
list.setLayoutData(gridData);
Label tagLabel = new Label(page, SWT.NONE);
tagLabel.setText("Tag");
Text tagText = new Text(page, SWT.NONE);
gridData = new GridData();
gridData.horizontalAlignment = GridData.FILL;
gridData.grabExcessHorizontalSpace = true;
gridData.horizontalSpan=2;
tagText.setLayoutData(gridData);
Label minDateLabel = new Label(page, SWT.NONE);
minDateLabel.setText("Min Time");
DateTime calendar = new DateTime (page, SWT.DATE | SWT.MEDIUM | SWT.BORDER);
calendar = new DateTime (page, SWT.TIME | SWT.MEDIUM | SWT.BORDER);
Label maxDateLabel = new Label(page, SWT.NONE);
maxDateLabel.setText("Max Time");
calendar = new DateTime (page, SWT.DATE | SWT.MEDIUM | SWT.BORDER);
calendar = new DateTime (page, SWT.TIME | SWT.MEDIUM | SWT.BORDER);
Button queryButton = new Button(page, SWT.PUSH);
queryButton.setText("Query");
gridData = new GridData();
gridData.horizontalAlignment = GridData.FILL;
gridData.grabExcessHorizontalSpace = true;
gridData.horizontalSpan=4;
queryButton.setLayoutData(gridData);
final ExpandItem item0 = new ExpandItem (bar, SWT.NONE, 0);
item0.setText("Query parameters");
item0.setHeight(page.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
item0.setControl(page);
item0.setExpanded(true);
bar.addExpandListener(new ExpandListener() {
public void itemExpanded(ExpandEvent e) {
item0.setText("hostname=Query Parameters");
System.err.println("Height = " + page.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
item0.setHeight(page.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
Control c = bar;
do {
if (c instanceof Composite)
((Composite)c).layout(true, true);
c = c.getParent();
} while (c != null && c.getParent() != null);
bar.getShell().layout(true, true);
}
public void itemCollapsed(ExpandEvent e) {
item0.setText("hostname=xxx");
System.err.println("page = " + page.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
item0.setHeight(item0.getHeaderHeight());
Control c = bar;
do {
if (c instanceof Composite)
((Composite)c).layout(true, true);
c = c.getParent();
} while (c != null && c.getParent() != null);
}
});
newComp = createTablePage(composite);
gridData = new GridData();
gridData.horizontalAlignment = GridData.FILL;
gridData.grabExcessHorizontalSpace = true;
gridData.verticalAlignment = GridData.FILL;
gridData.grabExcessVerticalSpace = true;
newComp.setLayoutData(gridData);
page.pack();
composite.pack();
return composite;
}
public Control createTablePage(Composite tabFolder) {
parent = tabFolder;
final Composite page = new Composite(parent, SWT.NONE);
GridLayout gridLayout = new GridLayout(NUM_OF_COLUMNS, false);
gridLayout.horizontalSpacing = 20;
page.setLayout(gridLayout);
Combo serviceFilter = new Combo (page, SWT.DROP_DOWN | SWT.READ_ONLY);
serviceFilter.add("All Services");
String[] SERVICE_NAMES=new String[]{"Data", "Log", "Config"};
for (int i=0; i<SERVICE_NAMES.length; i++) {
serviceFilter.add(SERVICE_NAMES[i]);
}
serviceFilter.setText("All Services");
Combo logLevelFilter = new Combo (page, SWT.DROP_DOWN | SWT.READ_ONLY);
logLevelFilter.add("All log levels");
for (int i=0; i<LOG_LEVELS.length; i++) {
logLevelFilter.add(LOG_LEVELS[i]);
}
logLevelFilter.setText ("All log levels");
Text regExpFilter = new Text(page, SWT.SEARCH | SWT.ICON_SEARCH | SWT.SINGLE);
GridData regexGridData = new GridData();
regexGridData.horizontalAlignment = GridData.FILL;
regexGridData.grabExcessHorizontalSpace = true;
regExpFilter.setLayoutData(regexGridData);
final Button scroll = new Button(page, SWT.CHECK);
scroll.setText("Scroll");
scroll.setSelection(true);
table = new Table (page, SWT.MULTI | SWT.FULL_SELECTION | SWT.V_SCROLL | SWT.BORDER | SWT.VIRTUAL);
table.setLinesVisible (true);
table.setHeaderVisible (true);
TableColumn column = new TableColumn (table, SWT.NONE);
column.setText ("Timestamp");
column = new TableColumn (table, SWT.NONE);
column.setText ("Origin");
column = new TableColumn (table, SWT.NONE);
column.setText ("Host");
column = new TableColumn (table, SWT.NONE);
column.setText ("Level");
column = new TableColumn (table, SWT.NONE);
column.setText ("Message");
column = new TableColumn (table, SWT.NONE);
column.setText ("Tag");
GridData tableGridData = new GridData();
tableGridData.horizontalAlignment = GridData.FILL;
tableGridData.verticalAlignment = GridData.FILL;
tableGridData.grabExcessHorizontalSpace = true;
tableGridData.grabExcessVerticalSpace = true;
tableGridData.horizontalSpan = NUM_OF_COLUMNS;
table.setLayoutData(tableGridData);
table.setItemCount(100);
setTableSize();
page.addControlListener(new ControlAdapter() {
public void controlResized(ControlEvent e) {
setTableSize();
}
});
table.pack();
page.pack();
return page;
}
public void setTableSize() {
Rectangle area = table.getParent().getClientArea();
Point size = table.computeSize(SWT.DEFAULT, SWT.DEFAULT);
ScrollBar vBar = table.getVerticalBar();
int width = area.width - table.computeTrim(0,0,0,0).width - vBar.getSize().x;
if (size.y > area.height + table.getHeaderHeight()) {
// Subtract the scrollbar width from the total column width
// if a vertical scrollbar will be required
Point vBarSize = vBar.getSize();
width -= vBarSize.x;
}
Point oldSize = table.getSize();
if (oldSize.x > area.width) {
// table is getting smaller so make the columns
// smaller first and then resize the table to
// match the client area width
table.getColumn(0).setWidth(200);
table.getColumn(1).setWidth(150);
table.getColumn(2).setWidth(50);
table.getColumn(3).setWidth(50);
table.getColumn(4).setWidth(width-500);
table.getColumn(5).setWidth(50);
table.setSize(area.width, area.height);
} else {
// table is getting bigger so make the table
// bigger first and then make the columns wider
// to match the client area width
table.setSize(area.width, area.height);
table.getColumn(0).setWidth(200);
table.getColumn(1).setWidth(150);
table.getColumn(2).setWidth(50);
table.getColumn(3).setWidth(50);
table.getColumn(4).setWidth(width-500);
table.getColumn(5).setWidth(50);
}
table.pack();
}
public static void main(String[] args) {
try {
Display display = new Display();
Shell shell = new Shell(display);
shell.setSize(800, 500);
shell.setLayout(new FillLayout());
(new LogQuery()).createTabFolderPage(shell);
shell.open();
while (!display.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
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| Re: ExpandBar not expanded properly [message #538928 is a reply to message #538911] |
Wed, 09 June 2010 06:58  |
Vijay Raj
Messages: 608
Registered: July 2009 |
Senior Member |
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i tryed u r code and the first bug i noticed was u r reusing griddata instance to many times...
ultimatly the final assignment of griddata will apply to all the controls not what u originally intended for a control...
so first cleanup that,after that we can fix the expand problem...
---------------------
why, mr. Anderson, why, why do you persist?
Because I Choose To.
Regards,
Vijay
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| Re: ExpandBar not expanded properly [message #538932 is a reply to message #538928] |
Wed, 09 June 2010 07:09 |
Vijay Raj
Messages: 608
Registered: July 2009 |
Senior Member |
|
|
I need help...
here is u r solution
package org.eclipse.swt.snippets;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ControlAdapter;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.events.ExpandEvent;
import org.eclipse.swt.events.ExpandListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.DateTime;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.ExpandBar;
import org.eclipse.swt.widgets.ExpandItem;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.ScrollBar;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.Text;
public class LogQuery
{
private static final int NUM_OF_COLUMNS = 4;
private Composite parent = null;
Control newComp = null;
private Table table = null;
public static final String[] LOG_LEVELS = new String[] { "TRACE", "DEBUG", "INFO", "WARN",
"ERROR", "FATAL" };
public Control createTabFolderPage(Composite tabFolder)
{
parent = tabFolder;
final Composite composite = new Composite(parent, SWT.NONE);
composite.setLayout(new GridLayout(1, false));
final GridData gridData = new GridData();
gridData.horizontalAlignment = GridData.FILL;
gridData.grabExcessHorizontalSpace = true;
final ExpandBar bar = new ExpandBar(composite, SWT.None);
bar.setLayoutData(gridData);
final Composite page = new Composite(bar, SWT.NONE);
GridLayout gridLayout = new GridLayout(NUM_OF_COLUMNS, false);
gridLayout.horizontalSpacing = 20;
page.setLayout(gridLayout);
Label originLabel = new Label(page, SWT.NONE);
originLabel.setText("Origin");
Text orginText = new Text(page, SWT.NONE);
GridData gridData1 = new GridData();
gridData1.horizontalAlignment = GridData.FILL;
gridData1.grabExcessHorizontalSpace = true;
gridData1.horizontalSpan = 2;
orginText.setLayoutData(gridData1);
Label logLabel = new Label(page, SWT.NONE);
logLabel.setText("Log Levels");
Label hostnameLabel = new Label(page, SWT.NONE);
hostnameLabel.setText("Host Name");
Text hostText = new Text(page, SWT.NONE);
GridData gridData2 = new GridData();
gridData2.horizontalAlignment = GridData.FILL;
gridData2.grabExcessHorizontalSpace = true;
gridData2.horizontalSpan = 2;
hostText.setLayoutData(gridData2);
List list = new List(page, SWT.BORDER | SWT.MULTI);
list.setItems(LOG_LEVELS);
GridData gridData3 = new GridData();
gridData3.horizontalAlignment = GridData.FILL;
gridData3.grabExcessHorizontalSpace = true;
gridData3.horizontalSpan = 2;
list.setLayoutData(gridData3);
GridData gridData4 = new GridData();
gridData4.horizontalAlignment = GridData.FILL;
gridData4.verticalAlignment = GridData.FILL;
gridData4.grabExcessHorizontalSpace = true;
gridData4.grabExcessVerticalSpace = true;
gridData4.verticalSpan = 4;
list.setLayoutData(gridData4);
Label tagLabel = new Label(page, SWT.NONE);
tagLabel.setText("Tag");
Text tagText = new Text(page, SWT.NONE);
GridData gridData5 = new GridData();
gridData5.horizontalAlignment = GridData.FILL;
gridData5.grabExcessHorizontalSpace = true;
gridData5.horizontalSpan = 2;
tagText.setLayoutData(gridData5);
Label minDateLabel = new Label(page, SWT.NONE);
minDateLabel.setText("Min Time");
DateTime calendar = new DateTime(page, SWT.DATE | SWT.MEDIUM | SWT.BORDER);
calendar = new DateTime(page, SWT.TIME | SWT.MEDIUM | SWT.BORDER);
Label maxDateLabel = new Label(page, SWT.NONE);
maxDateLabel.setText("Max Time");
calendar = new DateTime(page, SWT.DATE | SWT.MEDIUM | SWT.BORDER);
calendar = new DateTime(page, SWT.TIME | SWT.MEDIUM | SWT.BORDER);
Button queryButton = new Button(page, SWT.PUSH);
queryButton.setText("Query");
GridData gridData6 = new GridData();
gridData6.horizontalAlignment = GridData.FILL;
gridData6.grabExcessHorizontalSpace = true;
gridData6.horizontalSpan = 4;
queryButton.setLayoutData(gridData6);
final ExpandItem item0 = new ExpandItem(bar, SWT.NONE, 0);
item0.setText("Query parameters");
item0.setHeight(page.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
item0.setControl(page);
item0.setExpanded(true);
bar.addExpandListener(new ExpandListener()
{
public void itemExpanded(ExpandEvent e)
{
item0.setText("hostname=Query Parameters");
System.err.println("Height = " + page.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
item0.setHeight(page.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
gridData.heightHint = page.computeSize(SWT.DEFAULT, SWT.DEFAULT).y;
composite.layout(true, true);
}
public void itemCollapsed(ExpandEvent e)
{
item0.setText("hostname=xxx");
System.err.println("page = " + page.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
item0.setHeight(item0.getHeaderHeight());
gridData.heightHint = item0.getHeaderHeight();
composite.layout(true, true);
}
});
newComp = createTablePage(composite);
GridData gridData7 = new GridData();
gridData7.horizontalAlignment = GridData.FILL;
gridData7.grabExcessHorizontalSpace = true;
gridData7.verticalAlignment = GridData.FILL;
gridData7.grabExcessVerticalSpace = true;
newComp.setLayoutData(gridData7);
page.pack();
composite.pack();
return composite;
}
public Control createTablePage(Composite tabFolder)
{
parent = tabFolder;
final Composite page = new Composite(parent, SWT.NONE);
GridLayout gridLayout = new GridLayout(NUM_OF_COLUMNS, false);
gridLayout.horizontalSpacing = 20;
page.setLayout(gridLayout);
Combo serviceFilter = new Combo(page, SWT.DROP_DOWN | SWT.READ_ONLY);
serviceFilter.add("All Services");
String[] SERVICE_NAMES = new String[] { "Data", "Log", "Config" };
for (int i = 0; i < SERVICE_NAMES.length; i++)
{
serviceFilter.add(SERVICE_NAMES[i]);
}
serviceFilter.setText("All Services");
Combo logLevelFilter = new Combo(page, SWT.DROP_DOWN | SWT.READ_ONLY);
logLevelFilter.add("All log levels");
for (int i = 0; i < LOG_LEVELS.length; i++)
{
logLevelFilter.add(LOG_LEVELS[i]);
}
logLevelFilter.setText("All log levels");
Text regExpFilter = new Text(page, SWT.SEARCH | SWT.ICON_SEARCH | SWT.SINGLE);
GridData regexGridData = new GridData();
regexGridData.horizontalAlignment = GridData.FILL;
regexGridData.grabExcessHorizontalSpace = true;
regExpFilter.setLayoutData(regexGridData);
final Button scroll = new Button(page, SWT.CHECK);
scroll.setText("Scroll");
scroll.setSelection(true);
table = new Table(page, SWT.MULTI | SWT.FULL_SELECTION | SWT.V_SCROLL | SWT.BORDER
| SWT.VIRTUAL);
table.setLinesVisible(true);
table.setHeaderVisible(true);
TableColumn column = new TableColumn(table, SWT.NONE);
column.setText("Timestamp");
column = new TableColumn(table, SWT.NONE);
column.setText("Origin");
column = new TableColumn(table, SWT.NONE);
column.setText("Host");
column = new TableColumn(table, SWT.NONE);
column.setText("Level");
column = new TableColumn(table, SWT.NONE);
column.setText("Message");
column = new TableColumn(table, SWT.NONE);
column.setText("Tag");
GridData tableGridData = new GridData();
tableGridData.horizontalAlignment = GridData.FILL;
tableGridData.verticalAlignment = GridData.FILL;
tableGridData.grabExcessHorizontalSpace = true;
tableGridData.grabExcessVerticalSpace = true;
tableGridData.horizontalSpan = NUM_OF_COLUMNS;
table.setLayoutData(tableGridData);
table.setItemCount(100);
setTableSize();
page.addControlListener(new ControlAdapter()
{
@Override
public void controlResized(ControlEvent e)
{
setTableSize();
}
});
table.pack();
page.pack();
return page;
}
public void setTableSize()
{
Rectangle area = table.getParent().getClientArea();
Point size = table.computeSize(SWT.DEFAULT, SWT.DEFAULT);
ScrollBar vBar = table.getVerticalBar();
int width = area.width - table.computeTrim(0, 0, 0, 0).width - vBar.getSize().x;
if (size.y > area.height + table.getHeaderHeight())
{
// Subtract the scrollbar width from the total column width
// if a vertical scrollbar will be required
Point vBarSize = vBar.getSize();
width -= vBarSize.x;
}
Point oldSize = table.getSize();
if (oldSize.x > area.width)
{
// table is getting smaller so make the columns
// smaller first and then resize the table to
// match the client area width
table.getColumn(0).setWidth(200);
table.getColumn(1).setWidth(150);
table.getColumn(2).setWidth(50);
table.getColumn(3).setWidth(50);
table.getColumn(4).setWidth(width - 500);
table.getColumn(5).setWidth(50);
table.setSize(area.width, area.height);
}
else
{
// table is getting bigger so make the table
// bigger first and then make the columns wider
// to match the client area width
table.setSize(area.width, area.height);
table.getColumn(0).setWidth(200);
table.getColumn(1).setWidth(150);
table.getColumn(2).setWidth(50);
table.getColumn(3).setWidth(50);
table.getColumn(4).setWidth(width - 500);
table.getColumn(5).setWidth(50);
}
table.pack();
}
public static void main(String[] args)
{
try
{
Display display = new Display();
Shell shell = new Shell(display);
shell.setSize(800, 500);
shell.setLayout(new FillLayout());
(new LogQuery()).createTabFolderPage(shell);
shell.open();
while (!display.isDisposed())
{
if (!display.readAndDispatch()) display.sleep();
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
---------------------
why, mr. Anderson, why, why do you persist?
Because I Choose To.
Regards,
Vijay
[Updated on: Wed, 09 June 2010 07:10] Report message to a moderator |
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