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Diffstat (limited to 'examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/Tab.java')
| -rwxr-xr-x | examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/Tab.java | 519 |
1 files changed, 0 insertions, 519 deletions
diff --git a/examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/Tab.java b/examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/Tab.java deleted file mode 100755 index 6b1b079336..0000000000 --- a/examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/Tab.java +++ /dev/null @@ -1,519 +0,0 @@ -package org.eclipse.swt.examples.controlexample;
-
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved
- */
-
-import org.eclipse.swt.*;
-import org.eclipse.swt.graphics.*;
-import org.eclipse.swt.widgets.*;
-import org.eclipse.swt.layout.*;
-import org.eclipse.swt.events.*;
-import java.util.ResourceBundle;
-
-/**
- * <code>Tab</code> is the abstract superclass of every page
- * in the example's tab folder. Each page in the tab folder
- * describes a control.
- *
- * A Tab itself is not a control but instead provides a
- * hierarchy with which to share code that is common to
- * every page in the folder.
- *
- * A typical page in a Tab contains a two column composite.
- * The left column contains the "Example" group. The right
- * column contains "Control" group. The "Control" group
- * contains controls that allow the user to interact with
- * the example control. The "Control" group typically
- * contains a "Style", "Display" and "Size" group. Subclasses
- * can override these defaults to augment a group or stop
- * a group from being created.
- */
-abstract class Tab {
- /* Common control buttons */
- Button borderButton, enabledButton, visibleButton;
- Button preferredButton, tooSmallButton, smallButton, largeButton, fillButton;
-
- /* Common groups and composites */
- Composite tabFolderPage;
- Group exampleGroup, controlGroup, displayGroup, sizeGroup, styleGroup, colorGroup;
-
- /* Controlling instance */
- final ControlExample instance;
-
- /* Sizing constants for the "Size" group */
- static final int TOO_SMALL_SIZE = 10;
- static final int SMALL_SIZE = 50;
- static final int LARGE_SIZE = 100;
-
- /* Common controls for the "Colors" group */
- Button backgroundButton, foregroundButton, fontButton;
- Color backgroundColor, foregroundColor;
- Font font;
-
- /**
- * Creates the Tab within a given instance of ControlExample.
- */
- Tab(ControlExample instance) {
- this.instance = instance;
- }
-
- /**
- * Creates the "Control" group. The "Control" group
- * is typically the right hand column in the tab.
- */
- void createControlGroup () {
-
- /*
- * Create the "Control" group. This is the group on the
- * left half of each example tab. It consists of the
- * style group, the display group and the size group.
- */
- controlGroup = new Group (tabFolderPage, SWT.NONE);
- GridLayout gridLayout= new GridLayout ();
- controlGroup.setLayout (gridLayout);
- gridLayout.numColumns = 2;
- gridLayout.makeColumnsEqualWidth = true;
- controlGroup.setLayoutData (new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
- controlGroup.setText (ControlExample.getResourceString("Parameters"));
-
- /* Create individual groups inside the "Control" group */
- createStyleGroup ();
- createDisplayGroup ();
- createSizeGroup ();
- createColorGroup ();
-
- /*
- * For each Button child in the style group, add a selection
- * listener that will recreate the example controls. If the
- * style group button is a RADIO button, ensure that the radio
- * button is selected before recreating the example controls.
- * When the user selects a RADIO button, the curreont RADIO
- * button in the group is deselected and the new RADIO button
- * is selected automatically. The listeners are notified for
- * both these operations but typically only do work when a RADIO
- * button is selected.
- */
- SelectionListener selectionListener = new SelectionAdapter () {
- public void widgetSelected (SelectionEvent event) {
- if ((event.widget.getStyle () & SWT.RADIO) != 0) {
- if (!((Button) event.widget).getSelection ()) return;
- }
- recreateExampleWidgets ();
- };
- };
- Control [] children = styleGroup.getChildren ();
- for (int i=0; i<children.length; i++) {
- if (children [i] instanceof Button) {
- Button button = (Button) children [i];
- button.addSelectionListener (selectionListener);
- }
- }
- }
-
- /**
- * Creates the "Control" widget children.
- * Subclasses override this method to augment
- * the standard controls created in the "Style",
- * "Display" and "Size" groups.
- */
- void createControlWidgets () {
- }
-
- /**
- * Creates the "Color" group. This is typically
- * a child of the "Control" group. Subclasses override
- * this method to customize and set system colors.
- */
- void createColorGroup () {
- /* Create the group */
- colorGroup = new Group(controlGroup, SWT.NULL);
- colorGroup.setLayout (new GridLayout (2, false));
- colorGroup.setLayoutData (new GridData (GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
- colorGroup.setText (ControlExample.getResourceString ("Colors"));
- new Label (colorGroup, SWT.NONE).setText (ControlExample.getResourceString ("Foreground_Color"));
- foregroundButton = new Button (colorGroup, SWT.PUSH);
- new Label (colorGroup, SWT.NONE).setText (ControlExample.getResourceString ("Background_Color"));
- backgroundButton = new Button (colorGroup, SWT.PUSH);
- fontButton = new Button (colorGroup, SWT.PUSH);
- fontButton.setText(ControlExample.getResourceString("Font"));
-
- Shell shell = backgroundButton.getShell ();
- final ColorDialog backgroundDialog = new ColorDialog (shell);
- final ColorDialog foregroundDialog = new ColorDialog (shell);
- final FontDialog fontDialog = new FontDialog (shell);
-
- /* Create images to display current colors */
- int imageSize = 12;
- Display display = shell.getDisplay ();
- final Image backgroundImage = new Image (display, imageSize, imageSize);
- final Image foregroundImage = new Image (display, imageSize, imageSize);
-
- /* Add listeners to set the colors and font */
- backgroundButton.setImage(backgroundImage);
- backgroundButton.addSelectionListener(new SelectionAdapter() {
- public void widgetSelected(SelectionEvent event) {
- RGB rgb = backgroundDialog.open();
- if (rgb == null) return;
- Color oldColor = backgroundColor;
- backgroundColor = new Color (backgroundButton.getDisplay(), rgb);
- setExampleWidgetBackground ();
- if (oldColor != null) oldColor.dispose ();
- }
- });
- foregroundButton.setImage(foregroundImage);
- foregroundButton.addSelectionListener(new SelectionAdapter() {
- public void widgetSelected(SelectionEvent event) {
- RGB rgb = foregroundDialog.open();
- if (rgb == null) return;
- Color oldColor = foregroundColor;
- foregroundColor = new Color (foregroundButton.getDisplay(), rgb);
- setExampleWidgetForeground ();
- if (oldColor != null) oldColor.dispose ();
- }
- });
- fontButton.addSelectionListener(new SelectionAdapter () {
- public void widgetSelected (SelectionEvent e) {
- FontData fontData = fontDialog.open ();
- if (fontData == null) return;
- Font oldFont = font;
- font = new Font (fontButton.getDisplay(), fontData);
- setExampleWidgetFont ();
- if (oldFont != null) oldFont.dispose ();
- }
- });
- backgroundButton.addDisposeListener(new DisposeListener() {
- public void widgetDisposed(DisposeEvent event) {
- if (backgroundImage != null) backgroundImage.dispose();
- if (foregroundImage != null) foregroundImage.dispose();
- if (backgroundColor != null) backgroundColor.dispose();
- if (foregroundColor != null) foregroundColor.dispose();
- if (font != null) font.dispose();
- backgroundColor = null;
- foregroundColor = null;
- font = null;
- }
- });
- }
-
- /**
- * Creates the "Display" group. This is typically
- * a child of the "Control" group.
- */
- void createDisplayGroup () {
- /* Create the group */
- displayGroup = new Group (controlGroup, SWT.NONE);
- displayGroup.setLayout (new GridLayout ());
- displayGroup.setLayoutData (new GridData (GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
- displayGroup.setText (ControlExample.getResourceString("State"));
-
- /* Create the controls */
- enabledButton = new Button(displayGroup, SWT.CHECK);
- enabledButton.setText(ControlExample.getResourceString("Enabled"));
- visibleButton = new Button(displayGroup, SWT.CHECK);
- visibleButton.setText(ControlExample.getResourceString("Visible"));
-
- /* Add the listeners */
- enabledButton.addSelectionListener (new SelectionAdapter () {
- public void widgetSelected (SelectionEvent event) {
- setExampleWidgetEnabled ();
- }
- });
- visibleButton.addSelectionListener (new SelectionAdapter () {
- public void widgetSelected (SelectionEvent event) {
- setExampleWidgetVisibility ();
- }
- });
-
- /* Set the default state */
- enabledButton.setSelection(true);
- visibleButton.setSelection(true);
- }
-
- /**
- * Creates the "Example" group. The "Example" group
- * is typically the left hand column in the tab.
- */
- void createExampleGroup () {
- exampleGroup = new Group (tabFolderPage, SWT.NONE);
- GridLayout gridLayout = new GridLayout ();
- exampleGroup.setLayout (gridLayout);
- exampleGroup.setLayoutData (new GridData (GridData.FILL_BOTH));
- }
-
- /**
- * Creates the "Example" widget children of the "Example" group.
- * Subclasses override this method to create the particular
- * example control.
- */
- void createExampleWidgets () {
- /* Do nothing */
- }
-
- /**
- * Creates the "Size" group. The "Size" group contains
- * controls that allow the user to change the size of
- * the example widgets.
- */
- void createSizeGroup () {
- /* Create the group */
- sizeGroup = new Group (controlGroup, SWT.NONE);
- sizeGroup.setLayout (new GridLayout());
- sizeGroup.setLayoutData (new GridData (GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
- sizeGroup.setText (ControlExample.getResourceString("Size"));
-
- /* Create the controls */
-
- /*
- * The preferred size of a widget is the size returned
- * by widget.computeSize (SWT.DEFAULT, SWT.DEFAULT).
- * This size is defined on a widget by widget basis.
- * Many widgets will attempt to display their contents.
- */
- preferredButton = new Button (sizeGroup, SWT.RADIO);
- preferredButton.setText (ControlExample.getResourceString("Preferred"));
- tooSmallButton = new Button (sizeGroup, SWT.RADIO);
- tooSmallButton.setText (TOO_SMALL_SIZE + " X " + TOO_SMALL_SIZE);
- smallButton = new Button(sizeGroup, SWT.RADIO);
- smallButton.setText (SMALL_SIZE + " X " + SMALL_SIZE);
- largeButton = new Button (sizeGroup, SWT.RADIO);
- largeButton.setText (LARGE_SIZE + " X " + LARGE_SIZE);
- fillButton = new Button (sizeGroup, SWT.RADIO);
- fillButton.setText (ControlExample.getResourceString("Fill"));
-
- /* Add the listeners */
- SelectionAdapter selectionListener = new SelectionAdapter () {
- public void widgetSelected (SelectionEvent event) {
- if (!((Button) event.widget).getSelection ()) return;
- setExampleWidgetSize ();
- };
- };
- preferredButton.addSelectionListener(selectionListener);
- tooSmallButton.addSelectionListener(selectionListener);
- smallButton.addSelectionListener(selectionListener);
- largeButton.addSelectionListener(selectionListener);
- fillButton.addSelectionListener(selectionListener);
-
- /* Set the default state */
- preferredButton.setSelection (true);
- }
-
- /**
- * Creates the "Style" group. The "Style" group contains
- * controls that allow the user to change the style of
- * the example widgets. Changing a widget "Style" causes
- * the widget to be destroyed and recreated.
- */
- void createStyleGroup () {
- styleGroup = new Group (controlGroup, SWT.NONE);
- styleGroup.setLayout (new GridLayout ());
- styleGroup.setLayoutData (new GridData (GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
- styleGroup.setText (ControlExample.getResourceString("Styles"));
- }
-
- /**
- * Creates the tab folder page.
- *
- * @param tabFolder org.eclipse.swt.widgets.TabFolder
- * @return the new page for the tab folder
- */
- Composite createTabFolderPage (TabFolder tabFolder) {
- /*
- * Create a two column page.
- */
- tabFolderPage = new Composite (tabFolder, SWT.NULL);
- GridLayout gridLayout = new GridLayout ();
- tabFolderPage.setLayout (gridLayout);
- gridLayout.numColumns = 2;
-
- /* Create the "Example" and "Control" columns */
- createExampleGroup ();
- createControlGroup ();
-
- /* Create the widgets in the two columns */
- createExampleWidgets ();
- createControlWidgets ();
- setExampleWidgetState ();
-
- return tabFolderPage;
- }
-
- /**
- * Disposes the "Example" widgets.
- */
- void disposeExampleWidgets () {
- Control [] controls = getExampleWidgets ();
- for (int i=0; i<controls.length; i++) {
- controls [i].dispose ();
- }
- }
-
- void drawImage (Image image, Color color) {
- GC gc = new GC(image);
- gc.setBackground(color);
- Rectangle bounds = image.getBounds();
- gc.fillRectangle(0, 0, bounds.width, bounds.height);
- gc.drawRectangle(0, 0, bounds.width - 1, bounds.height - 1);
- gc.dispose();
- }
-
- /**
- * Gets the "Example" widget children.
- *
- * @return an array of example widget children
- */
- Control [] getExampleWidgets () {
- return new Control [0];
- }
-
- /**
- * Gets the text for the tab folder item.
- *
- * @return the text for the tab item
- */
- String getTabText () {
- return "";
- }
-
- /**
- * Recreates the "Example" widgets.
- */
- void recreateExampleWidgets () {
- disposeExampleWidgets ();
- createExampleWidgets ();
- setExampleWidgetState ();
- }
-
- /**
- * Sets the background color of the "Example" widgets.
- */
- void setExampleWidgetBackground () {
- if (backgroundButton == null) return;
- Control [] controls = getExampleWidgets ();
- Color color = backgroundColor;
- if (color == null) color = controls [0].getBackground ();
- Image image = backgroundButton.getImage ();
- drawImage (image, color);
- backgroundButton.setImage (image);
- if (backgroundColor == null) return;
- for (int i = 0; i < controls.length; i++) { - Control control = controls[i]; - control.setBackground (backgroundColor);
- }
- }
-
- /**
- * Sets the enabled state of the "Example" widgets.
- */
- void setExampleWidgetEnabled () {
- Control [] controls = getExampleWidgets ();
- for (int i=0; i<controls.length; i++) {
- controls [i].setEnabled (enabledButton.getSelection ());
- }
- }
-
- /**
- * Sets the font of the "Example" widgets.
- */
- void setExampleWidgetFont () {
- if (font == null) return;
- Control [] controls = getExampleWidgets ();
- for (int i = 0; i < controls.length; i++) {
- Control control = controls[i];
- control.setFont(font);
- }
- }
-
- /**
- * Sets the foreground color of the "Example" widgets.
- */
- void setExampleWidgetForeground () {
- if (foregroundButton == null) return;
- Control [] controls = getExampleWidgets ();
- Color color = foregroundColor;
- if (color == null) color = controls [0].getForeground ();
- Image image = foregroundButton.getImage ();
- drawImage (image, color);
- foregroundButton.setImage (image);
- if (foregroundColor == null) return;
- for (int i = 0; i < controls.length; i++) {
- Control control = controls[i];
- control.setForeground (foregroundColor);
- }
- }
-
- /**
- * Sets the size of the "Example" widgets.
- */
- void setExampleWidgetSize () {
- int size = SWT.DEFAULT;
- if (preferredButton == null) return;
- if (preferredButton.getSelection()) size = SWT.DEFAULT;
- if (tooSmallButton.getSelection()) size = TOO_SMALL_SIZE;
- if (smallButton.getSelection()) size = SMALL_SIZE;
- if (largeButton.getSelection()) size = LARGE_SIZE;
- Control [] controls = getExampleWidgets ();
- for (int i=0; i<controls.length; i++) {
- GridData gridData;
- if (fillButton.getSelection()) {
- gridData = new GridData (GridData.FILL_BOTH);
- } else {
- gridData = new GridData ();
- gridData.widthHint = size;
- gridData.heightHint = size;
- }
- controls [i].setLayoutData (gridData);
- }
- /*
- * Force the entire widget tree to layout,
- * even when the child sizes may not have
- * changed.
- */
- int seenCount = 0;
- Composite [] seen = new Composite [4];
- for (int i=0; i<controls.length; i++) {
- Control control = controls [i];
- while (control != exampleGroup) {
- Composite parent = control.getParent ();
- int index = 0;
- while (index < seenCount) {
- if (seen [index] == parent) break;
- index++;
- }
- if (index == seenCount) parent.layout ();
- if (seenCount == seen.length) {
- Composite [] newSeen = new Composite [seen.length + 4];
- System.arraycopy (seen, 0, newSeen, 0, seen.length);
- seen = newSeen;
- }
- seen [seenCount++] = parent;
- control = control.getParent ();
- }
- }
- }
-
- /**
- * Sets the state of the "Example" widgets. Subclasses
- * reimplement this method to set "Example" widget state
- * that is specific to the widget.
- */
- void setExampleWidgetState () {
- setExampleWidgetEnabled ();
- setExampleWidgetVisibility ();
- setExampleWidgetSize ();
- setExampleWidgetBackground ();
- setExampleWidgetForeground ();
- setExampleWidgetFont ();
- }
-
- /**
- * Sets the visibility of the "Example" widgets.
- */
- void setExampleWidgetVisibility () {
- Control [] controls = getExampleWidgets ();
- for (int i=0; i<controls.length; i++) {
- controls [i].setVisible (visibleButton.getSelection ());
- }
- }
-}
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