ctabfoldertab.java

eclipse 的程序源码

		});
		
		unselectedImageButton = new Button (otherGroup, SWT.CHECK);
		unselectedImageButton.setText (ControlExample.getResourceString("Set_Unselected_Image_Visible"));
		unselectedImageButton.setSelection(true);
		unselectedImageButton.addSelectionListener (new SelectionAdapter () {
			public void widgetSelected (SelectionEvent event) {
				setUnselectedImageVisible();
			}
		});
		unselectedCloseButton = new Button (otherGroup, SWT.CHECK);
		unselectedCloseButton.setText (ControlExample.getResourceString("Set_Unselected_Close_Visible"));
		unselectedCloseButton.setSelection(true);
		unselectedCloseButton.addSelectionListener (new SelectionAdapter () {
			public void widgetSelected (SelectionEvent event) {
				setUnselectedCloseVisible();
			}
		});
	}

	/**
	 * Creates the "Example" group.
	 */
	void createExampleGroup () {
		super.createExampleGroup ();
		
		/* Create a group for the CTabFolder */
		tabFolderGroup = new Group (exampleGroup, SWT.NONE);
		tabFolderGroup.setLayout (new GridLayout ());
		tabFolderGroup.setLayoutData (new GridData (GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
		tabFolderGroup.setText ("CTabFolder");
	}
	
	/**
	 * Creates the "Example" widgets.
	 */
	void createExampleWidgets () {
		
		/* Compute the widget style */
		int style = getDefaultStyle();
		if (topButton.getSelection ()) style |= SWT.TOP;
		if (bottomButton.getSelection ()) style |= SWT.BOTTOM;
		if (borderButton.getSelection ()) style |= SWT.BORDER;
		if (flatButton.getSelection ()) style |= SWT.FLAT;
		if (closeButton.getSelection ()) style |= SWT.CLOSE;

		/* Create the example widgets */
		tabFolder1 = new CTabFolder (tabFolderGroup, style);
		for (int i = 0; i < CTabItems1.length; i++) {
			CTabItem item = new CTabItem(tabFolder1, SWT.NONE);
			item.setText(CTabItems1[i]);
			Text text = new Text(tabFolder1, SWT.READ_ONLY);
			text.setText(ControlExample.getResourceString("CTabItem_content") + ": " + i);
			item.setControl(text);
		}
		tabFolder1.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event event) {
				lastSelectedTab = tabFolder1.getSelectionIndex();
			}
		});
		tabFolder1.setSelection(lastSelectedTab);
	}
	
	/**
	 * Creates the "Style" group.
	 */
	void createStyleGroup() {
		super.createStyleGroup ();
		
		/* Create the extra widgets */
		topButton = new Button (styleGroup, SWT.RADIO);
		topButton.setText ("SWT.TOP");
		topButton.setSelection(true);
		bottomButton = new Button (styleGroup, SWT.RADIO);
		bottomButton.setText ("SWT.BOTTOM");
		borderButton = new Button (styleGroup, SWT.CHECK);
		borderButton.setText ("SWT.BORDER");
		flatButton = new Button (styleGroup, SWT.CHECK);
		flatButton.setText ("SWT.FLAT");
		closeButton = new Button (styleGroup, SWT.CHECK);
		closeButton.setText ("SWT.CLOSE");
	
		/* Add the listeners */
		SelectionListener selectionListener = new SelectionAdapter () {
			public void widgetSelected(SelectionEvent event) {
				if ((event.widget.getStyle() & SWT.RADIO) != 0) {
					if (!((Button) event.widget).getSelection ()) return;
				}
				recreateExampleWidgets ();
			}
		};
		topButton.addSelectionListener (selectionListener);
		bottomButton.addSelectionListener (selectionListener);
		borderButton.addSelectionListener (selectionListener);
		flatButton.addSelectionListener (selectionListener);
		closeButton.addSelectionListener (selectionListener);
	}
	
	/**
	 * Gets the list of custom event names.
	 * 
	 * @return an array containing custom event names
	 */
	String [] getCustomEventNames () {
		return new String [] {"CTabFolderEvent"};
	}
	
	/**
	 * Gets the "Example" widget children's items, if any.
	 *
	 * @return an array containing the example widget children's items
	 */
	Item [] getExampleWidgetItems () {
		return tabFolder1.getItems();
	}
	
	/**
	 * Gets the "Example" widget children.
	 */
	Control [] getExampleWidgets () {
		return new Control [] {tabFolder1};
	}
	
	/**
	 * Gets the text for the tab folder item.
	 */
	String getTabText () {
		return "CTabFolder";
	}

	/**
	 * Hooks the custom listener specified by eventName.
	 */
	void hookCustomListener (final String eventName) {
		if (eventName == "CTabFolderEvent") {
			tabFolder1.addCTabFolder2Listener (new CTabFolder2Adapter () {
				public void close (CTabFolderEvent event) {
					log (eventName, event);
				}
			});
		}
	}

	/**
	 * Sets the foreground color, background color, and font
	 * of the "Example" widgets to their default settings.
	 * Also sets foreground and background color of the Node 1
	 * TreeItems to default settings.
	 */
	void resetColorsAndFonts () {
		Color oldColor = foregroundSelectionColor;
		foregroundSelectionColor = null;
		if (oldColor != null) oldColor.dispose();
		oldColor = backgroundSelectionColor;
		backgroundSelectionColor = null;
		if (oldColor != null) oldColor.dispose();
		Font oldFont = itemFont;
		itemFont = null;
		if (oldFont != null) oldFont.dispose();
		super.resetColorsAndFonts ();
	}
	
	void setExampleWidgetForeground () {
		if (foregroundSelectionButton == null || tabFolder1 == null) return;
		tabFolder1.setSelectionForeground(foregroundSelectionColor);
		// Set the foreground button's color to match the color just set.
		Color color = foregroundSelectionColor;
		if (color == null) color = tabFolder1.getSelectionForeground ();
		drawImage (foregroundSelectionImage, color);
		foregroundSelectionButton.setImage (foregroundSelectionImage);
		super.setExampleWidgetForeground();
	}
	
	void setExampleWidgetBackground () {
		if (backgroundSelectionButton == null || tabFolder1 == null) return;
		tabFolder1.setSelectionBackground(backgroundSelectionColor);
		// Set the background button's color to match the color just set.
		Color color = backgroundSelectionColor;
		if (color == null) color = tabFolder1.getSelectionBackground ();
		drawImage (backgroundSelectionImage, color);
		backgroundSelectionButton.setImage (backgroundSelectionImage);
		super.setExampleWidgetBackground();
	}
	void setExampleWidgetFont () {
		if (instance.startup) return;
		if (itemFontButton == null) return; // no font button on this tab
		CTabItem[] items = tabFolder1.getItems();
		if (items.length > 0) {
			items[0].setFont(itemFont);
		}
		super.setExampleWidgetFont();
	}
	/**
	 * Sets the state of the "Example" widgets.
	 */
	void setExampleWidgetState () {
		super.setExampleWidgetState();
		setSimpleTabs();
		setSingleTabs();
		setImages();
		setMinimizeVisible();
		setMaximizeVisible();
		setUnselectedCloseVisible();
		setUnselectedImageVisible();
		setExampleWidgetSize();
	}
	
	/**
	 * Sets the shape that the CTabFolder will use to render itself. 
	 */
	void setSimpleTabs () {
		tabFolder1.setSimple (simpleTabButton.getSelection ());
		setExampleWidgetSize();
	}
	
	/**
	 * Sets the number of tabs that the CTabFolder should display.
	 */
	void setSingleTabs () {
		tabFolder1.setSingle (singleTabButton.getSelection ());
		setExampleWidgetSize();
	}
	/**
	 * Sets an image into each item of the "Example" widgets.
	 */
	void setImages () {
		boolean setImage = imageButton.getSelection ();
		CTabItem items[] = tabFolder1.getItems ();
		for (int i = 0; i < items.length; i++) {
			if (setImage) {
				items[i].setImage (instance.images[ControlExample.ciClosedFolder]);
			} else {
				items[i].setImage (null);
			}
		}
		setExampleWidgetSize ();
	}
	/**
	 * Sets the visibility of the minimize button
	 */
	void setMinimizeVisible () {
		tabFolder1.setMinimizeVisible(showMinButton.getSelection ());
		setExampleWidgetSize();
	}
	/**
	 * Sets the visibility of the maximize button
	 */
	void setMaximizeVisible () {
		tabFolder1.setMaximizeVisible(showMaxButton.getSelection ());
		setExampleWidgetSize();
	}
	/**
	 * Sets the visibility of the close button on unselected tabs
	 */
	void setUnselectedCloseVisible () {
		tabFolder1.setUnselectedCloseVisible(unselectedCloseButton.getSelection ());
		setExampleWidgetSize();
	}
	/**
	 * Sets the visibility of the image on unselected tabs
	 */
	void setUnselectedImageVisible () {
		tabFolder1.setUnselectedImageVisible(unselectedImageButton.getSelection ());
		setExampleWidgetSize();
	}
	/**
	 * Sets the font of CTabItem 0.
	 */
	void setItemFont () {
		if (instance.startup) return;
		tabFolder1.getItem (0).setFont (itemFont);
		setExampleWidgetSize();
	}
}