/**
* Creates an instance of a ControlExample embedded inside the supplied parent Composite.
*
* @param parent the container of the example
*/
public ControlExample(Composite parent) {
initResources();
tabFolder = new TabFolder(parent, SWT.NONE);
tabs = createTabs();
for (Tab tab : tabs) {
TabItem item = new TabItem(tabFolder, SWT.NONE);
item.setText(tab.getTabText());
item.setControl(tab.createTabFolderPage(tabFolder));
item.setData(tab);
}
/* Workaround: if the tab folder is wider than the screen,
* Mac platforms clip instead of somehow scrolling the tab items.
* We try to recover some width by using shorter tab names. */
Point size = parent.computeSize(SWT.DEFAULT, SWT.DEFAULT);
Rectangle monitorArea = parent.getMonitor().getClientArea();
boolean isMac = SWT.getPlatform().equals("cocoa");
if (size.x > monitorArea.width && isMac) {
TabItem[] tabItems = tabFolder.getItems();
for (int i = 0; i < tabItems.length; i++) {
tabItems[i].setText(tabs[i].getShortTabText());
}
}
startup = false;
}
/** Sets the state of the "Example" widgets. */
void setExampleWidgetState() {
super.setExampleWidgetState();
horizontalButton.setSelection((canvas.getStyle() & SWT.H_SCROLL) != 0);
verticalButton.setSelection((canvas.getStyle() & SWT.V_SCROLL) != 0);
borderButton.setSelection((canvas.getStyle() & SWT.BORDER) != 0);
noBackgroundButton.setSelection((canvas.getStyle() & SWT.NO_BACKGROUND) != 0);
noFocusButton.setSelection((canvas.getStyle() & SWT.NO_FOCUS) != 0);
noMergePaintsButton.setSelection((canvas.getStyle() & SWT.NO_MERGE_PAINTS) != 0);
noRedrawResizeButton.setSelection((canvas.getStyle() & SWT.NO_REDRAW_RESIZE) != 0);
setCaret();
}
/** Creates the "Example" group. */
void createExampleGroup() {
super.createExampleGroup();
/* Create a group for the canvas widget */
canvasGroup = new Group(exampleGroup, SWT.NONE);
canvasGroup.setLayout(new GridLayout());
canvasGroup.setLayoutData(
new GridData(
GridData.GRAB_HORIZONTAL
| GridData.HORIZONTAL_ALIGN_FILL
| GridData.VERTICAL_ALIGN_FILL));
canvasGroup.setText("Canvas");
}
/** Creates the "Example" group. */
void createExampleGroup() {
super.createExampleGroup();
exampleGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
/*
* Create a group for the text widget to display
* the results returned by the example dialogs.
*/
resultGroup = new Group(exampleGroup, SWT.NONE);
resultGroup.setLayout(new GridLayout());
resultGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
resultGroup.setText(ControlExample.getResourceString("Dialog_Result"));
}
/** Creates the "Other" group. */
void createOtherGroup() {
super.createOtherGroup();
/* Create display controls specific to this example */
caretButton = new Button(otherGroup, SWT.CHECK);
caretButton.setText(ControlExample.getResourceString("Caret"));
fillDamageButton = new Button(otherGroup, SWT.CHECK);
fillDamageButton.setText(ControlExample.getResourceString("FillDamage"));
/* Add the listeners */
caretButton.addSelectionListener(
new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
setCaret();
}
});
}
/**
* Creates the tab folder page.
*
* @param tabFolder org.eclipse.swt.widgets.TabFolder
* @return the new page for the tab folder
*/
Composite createTabFolderPage(TabFolder tabFolder) {
super.createTabFolderPage(tabFolder);
/*
* Add a resize listener to the tabFolderPage so that
* if the user types into the example widget to change
* its preferred size, and then resizes the shell, we
* recalculate the preferred size correctly.
*/
tabFolderPage.addControlListener(
new ControlAdapter() {
public void controlResized(ControlEvent e) {
setExampleWidgetSize();
}
});
return tabFolderPage;
}
/** Creates the "Style" group. */
void createStyleGroup() {
super.createStyleGroup();
/* Create the extra widgets */
horizontalButton = new Button(styleGroup, SWT.CHECK);
horizontalButton.setText("SWT.H_SCROLL");
horizontalButton.setSelection(true);
verticalButton = new Button(styleGroup, SWT.CHECK);
verticalButton.setText("SWT.V_SCROLL");
verticalButton.setSelection(true);
borderButton = new Button(styleGroup, SWT.CHECK);
borderButton.setText("SWT.BORDER");
noBackgroundButton = new Button(styleGroup, SWT.CHECK);
noBackgroundButton.setText("SWT.NO_BACKGROUND");
noFocusButton = new Button(styleGroup, SWT.CHECK);
noFocusButton.setText("SWT.NO_FOCUS");
noMergePaintsButton = new Button(styleGroup, SWT.CHECK);
noMergePaintsButton.setText("SWT.NO_MERGE_PAINTS");
noRedrawResizeButton = new Button(styleGroup, SWT.CHECK);
noRedrawResizeButton.setText("SWT.NO_REDRAW_RESIZE");
}
/** Recreates the "Example" widgets. */
void recreateExampleWidgets() {
if (textWidget == null) {
super.recreateExampleWidgets();
}
}