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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/ColorDialog.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/ColorDialog.java | 466 |
1 files changed, 0 insertions, 466 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/ColorDialog.java b/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/ColorDialog.java deleted file mode 100755 index 51be4bfc3f..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/ColorDialog.java +++ /dev/null @@ -1,466 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.widgets; - - -import org.eclipse.swt.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.layout.*; - -/** - * Instances of this class allow the user to select a color - * from a predefined set of available colors. - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>(none)</dd> - * <dt><b>Events:</b></dt> - * <dd>(none)</dd> - * </dl> - * <p> - * IMPORTANT: This class is intended to be subclassed <em>only</em> - * within the SWT implementation. - * </p> - * - * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample, Dialog tab</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - * @noextend This class is not intended to be subclassed by clients. - */ -public class ColorDialog extends Dialog { - private static final int COLORSWATCH_SIZE_DEPTH4 = 40; - private static final int COLORSWATCH_SIZE_DEPTH8 = 15; - private static final int COLORSWATCH_SIZE_DEPTH16 = 10; - private static final int COLORSWATCH_BORDER = 1; // border between each color pad - - private Shell shell; // the dialog shell - private Canvas colorsCanvas; - private Label sampleLabel, selectionLabel; - private Canvas sampleCanvas, selectionCanvas; - private Button okButton, cancelButton; - private int colorChooserWidth, colorChooserHeight; - - private boolean okSelected; - private RGB rgb; - private int colorSwatchExtent; // the size of each color square - private Color colorGrid[][]; // the colors displayed in the dialog - -/** - * Constructs a new instance of this class given only its parent. - * - * @param parent a composite control which will be the parent of the new instance - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> - * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> - * </ul> - * - * @see SWT - * @see Widget#checkSubclass - * @see Widget#getStyle - */ -public ColorDialog(Shell parent) { - this (parent, SWT.APPLICATION_MODAL); -} -/** - * Constructs a new instance of this class given its parent - * and a style value describing its behavior and appearance. - * <p> - * The style value is either one of the style constants defined in - * class <code>SWT</code> which is applicable to instances of this - * class, or must be built by <em>bitwise OR</em>'ing together - * (that is, using the <code>int</code> "|" operator) two or more - * of those <code>SWT</code> style constants. The class description - * lists the style constants that are applicable to the class. - * Style bits are also inherited from superclasses. - * </p> - * - * @param parent a composite control which will be the parent of the new instance (cannot be null) - * @param style the style of control to construct - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> - * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> - * </ul> - * - * @see SWT - * @see Widget#checkSubclass - * @see Widget#getStyle - */ -public ColorDialog(Shell parent, int style) { - super (parent, checkStyle (parent, style)); - checkSubclass (); -} -void createChildren() { - Shell dialog = shell; - GridLayout layout = new GridLayout (2, false); - dialog.setLayout(layout); - - colorChooserWidth = colorSwatchExtent * colorGrid.length - 1; - colorChooserHeight = colorSwatchExtent * colorGrid[0].length - 1; - colorsCanvas = new Canvas(dialog, SWT.BORDER); - GridData data = new GridData (); - data.widthHint = colorChooserWidth; - data.heightHint = colorChooserHeight; - colorsCanvas.setLayoutData(data); - - Composite buttonsGroup = new Composite (dialog, SWT.NONE); - buttonsGroup.setLayout(new GridLayout()); - buttonsGroup.setLayoutData(new GridData(GridData.BEGINNING)); - createOkCancel(buttonsGroup); - - Composite bottomGroup = new Composite (dialog,SWT.NONE); - layout = new GridLayout(2, true); - layout.marginHeight = 0; - layout.marginWidth = 0; - bottomGroup.setLayout(layout); - bottomGroup.setLayoutData(new GridData(GridData.FILL_BOTH)); - - createSampleGroup(bottomGroup); - createSelectionGroup(bottomGroup); -} -void createOkCancel(Composite parent) { - okButton = new Button(parent, SWT.PUSH); - okButton.setText(SWT.getMessage("SWT_OK")); - shell.setDefaultButton(okButton); - GridData data = new GridData(GridData.FILL_HORIZONTAL); - okButton.setLayoutData(data); - - cancelButton = new Button(parent, SWT.PUSH); - cancelButton.setText(SWT.getMessage("SWT_Cancel")); - data = new GridData(GridData.FILL_HORIZONTAL); - cancelButton.setLayoutData(data); -} -void createSampleGroup(Composite parent) { - Group sampleGroup = new Group(parent, SWT.NULL); - GridData data = new GridData(GridData.FILL_BOTH); - data.grabExcessHorizontalSpace = true; - sampleGroup.setLayout(new GridLayout()); - sampleGroup.setLayoutData(data); - sampleGroup.setText(SWT.getMessage("SWT_Sample")); - - sampleLabel = new Label(sampleGroup, SWT.CENTER | SWT.BORDER); - sampleLabel.setAlignment(SWT.CENTER); - sampleLabel.setText(SWT.getMessage("SWT_A_Sample_Text")); - data = new GridData(GridData.FILL_HORIZONTAL); - sampleLabel.setLayoutData(data); - - sampleCanvas = new Canvas(sampleGroup, SWT.BORDER); - data = new GridData(GridData.FILL_HORIZONTAL); - data.heightHint = 15; - sampleCanvas.setLayoutData(data); -} -void createSelectionGroup(Composite parent) { - Group selectionGroup = new Group(parent, SWT.NULL); - GridData data = new GridData(GridData.FILL_BOTH); - data.grabExcessHorizontalSpace = true; - selectionGroup.setLayout(new GridLayout()); - selectionGroup.setLayoutData(data); - selectionGroup.setText(SWT.getMessage("SWT_Selection")); - - selectionLabel = new Label(selectionGroup, SWT.CENTER | SWT.BORDER); - selectionLabel.setAlignment(SWT.CENTER); - selectionLabel.setText(SWT.getMessage("SWT_Current_Selection")); - data = new GridData(GridData.FILL_HORIZONTAL); - data.grabExcessHorizontalSpace = true; - selectionLabel.setLayoutData(data); - - selectionCanvas = new Canvas(selectionGroup, SWT.BORDER); - data = new GridData(GridData.FILL_HORIZONTAL); - data.grabExcessHorizontalSpace = true; - data.heightHint = 15; - selectionCanvas.setLayoutData(data); -} -void disposeColors() { - for (int row = 0; row < colorGrid.length; row++) { - for (int column = 0; column < colorGrid[row].length; column++) { - colorGrid[row][column].dispose(); - } - } -} -void drawColor(int xIndex, int yIndex, Color color, GC gc) { - int colorExtent = colorSwatchExtent - COLORSWATCH_BORDER; - gc.setBackground(color); - gc.fillRectangle( - xIndex * colorSwatchExtent, - yIndex * colorSwatchExtent, - colorExtent, colorExtent); -} -/** - * Returns the currently selected color in the receiver. - * - * @return the RGB value for the selected color, may be null - * - * @see PaletteData#getRGBs - */ -public RGB getRGB() { - return rgb; -} -void handleEvents(Event event) { - if (event.type == SWT.Paint) { - paint(event); - } - else - if (event.type == SWT.MouseDown) { - mouseDown(event); - } - else - if (event.type == SWT.MouseMove) { - mouseMove(event); - } - else - if (event.type == SWT.Selection) { - if (event.widget == okButton) { - okSelected = true; - shell.setVisible(false); - } - else - if (event.widget == cancelButton) { - okSelected = false; - shell.setVisible(false); - } - } -} -void initialize4BitColors() { - Display display = shell.display; - - colorGrid[0][0] = new Color(display, 0, 0, 0); - colorGrid[0][1] = new Color(display, 255, 255, 255); - colorGrid[1][0] = new Color(display, 128, 128, 128); - colorGrid[1][1] = new Color(display, 192, 192, 192); - - colorGrid[2][0] = new Color(display, 0, 0, 128); - colorGrid[2][1] = new Color(display, 0, 0, 255); - colorGrid[3][0] = new Color(display, 0, 128, 128); - colorGrid[3][1] = new Color(display, 0, 255, 255); - - colorGrid[4][0] = new Color(display, 0, 128, 0); - colorGrid[4][1] = new Color(display, 0, 255, 0); - colorGrid[5][0] = new Color(display, 128, 128, 0); - colorGrid[5][1] = new Color(display, 255, 255, 0); - - colorGrid[6][0] = new Color(display, 128, 0, 0); - colorGrid[6][1] = new Color(display, 255, 0, 0); - colorGrid[7][0] = new Color(display, 128, 0, 128); - colorGrid[7][1] = new Color(display, 255, 0, 255); -} -void initialize8BitColors() { - Display display = shell.display; - int numRows = colorGrid[0].length; - int iterationStep = 64; - int row = 0, column = 0; - int red, green, blue; - // run the loops from 0 to 256 inclusive since this is easiest for the step - // size, then adjust the 256 case to the proper 255 value when needed - for (red = 0; red <= 256; red += iterationStep) { - for (blue = 0; blue <= 256; blue += iterationStep) { - for (green = 0; green <= 256; green += iterationStep) { - if (row == numRows) { - row = 0; - column++; - } - if (red == 256) red = 255; - if (blue == 256) blue = 255; - if (green == 256) green = 255; - colorGrid[column][row++] = new Color(display, red, green, blue); - } - } - } -} -void initialize16BitColors() { - Display display = shell.display; - int numRows = colorGrid[0].length; - int iterationStep = 51; - int row = 0, column = 0; - int red, green, blue; - - for (red = 0; red <= 255; red += iterationStep) { - for (blue = 0; blue <= 255; blue += iterationStep) { - if (blue == iterationStep && column < 20) { // evenly distribute 256 colors on 32 columns - blue += iterationStep; - } - for (green = 0; green <= 255; green += iterationStep) { - if (row == 2 || row == 5) { // evenly distribute 256 colors on 8 rows - colorGrid[column][row++] = new Color(display, red, green - iterationStep / 2, blue); - } - if (row == numRows) { - row = 0; - column++; - } - colorGrid[column][row++] = new Color(display, red, green, blue); - } - } - } -} -void initializeWidgets() { - Display display = shell.display; - if (rgb != null) { - Color selectionColor = new Color(display, rgb); - selectionCanvas.setBackground(selectionColor); - selectionLabel.setBackground(selectionColor); - selectionColor.dispose(); - } -} -void installListeners() { - Listener listener = new Listener() { - public void handleEvent(Event event) {handleEvents(event);} - }; - okButton.addListener(SWT.Selection, listener); - cancelButton.addListener(SWT.Selection, listener); - colorsCanvas.addListener(SWT.Paint, listener); - colorsCanvas.addListener(SWT.MouseDown, listener); - colorsCanvas.addListener(SWT.MouseMove, listener); -} -void mouseDown(Event event) { - int swatchExtent = colorSwatchExtent; - Color color = colorGrid[event.x / swatchExtent][event.y / swatchExtent]; - selectionCanvas.setBackground(color); - selectionLabel.setBackground(color); -} -void mouseMove(Event event) { - int swatchExtent = colorSwatchExtent; - // adjust for events received from moving over the Canvas' border - if (!(0 <= event.x && event.x <= colorChooserWidth)) return; - if (!(0 <= event.y && event.y <= colorChooserHeight)) return; - int xgrid = Math.min(colorGrid.length - 1, event.x / swatchExtent); - int ygrid = Math.min(colorGrid[0].length - 1, event.y / swatchExtent); - Color color = colorGrid[xgrid][ygrid]; - sampleCanvas.setBackground(color); - sampleLabel.setBackground(color); -} -/** - * Makes the receiver visible and brings it to the front - * of the display. - * - * @return the selected color, or null if the dialog was - * cancelled, no color was selected, or an error - * occurred - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public RGB open() { - shell = new Shell(parent, getStyle() | SWT.TITLE | SWT.BORDER | SWT.APPLICATION_MODAL); - Display display = shell.display; - setColorDepth(display.getDepth()); - createChildren(); - installListeners(); - openModal(); - if (okSelected) { - Color selectionColor = selectionCanvas.getBackground(); - rgb = new RGB( - selectionColor.getRed(), - selectionColor.getGreen(), - selectionColor.getBlue()); - } - disposeColors(); - if (shell.isDisposed() == false) { - shell.dispose(); - } - if (!okSelected) return null; - return rgb; -} -/** - * Open the receiver and set its size to the size calculated by - * the layout manager. - */ -void openDialog() { - Shell dialog = shell; - - // Start everything off by setting the shell size to its computed size. - Point pt = dialog.computeSize(-1, -1, false); - - // Ensure that the width of the shell fits the display. - Display display = dialog.display; - Rectangle displayRect = display.getBounds(); - int widthLimit = displayRect.width * 7 / 8; - int heightLimit = displayRect.height * 7 / 8; - if (pt.x > widthLimit) { - pt = dialog.computeSize (widthLimit, -1, false); - } - - /* - * If the parent is visible then center this dialog on it, - * otherwise center this dialog on the parent's monitor - */ - Rectangle parentBounds = null; - if (parent.isVisible ()) { - parentBounds = getParent ().getBounds (); - } else { - parentBounds = parent.getMonitor ().getBounds (); - } - int originX = (parentBounds.width - pt.x) / 2 + parentBounds.x; - originX = Math.max (originX, 0); - originX = Math.min (originX, widthLimit - pt.x); - int originY = (parentBounds.height - pt.y) / 2 + parentBounds.y; - originY = Math.max (originY, 0); - originY = Math.min (originY, heightLimit - pt.y); - dialog.setBounds (originX, originY, pt.x, pt.y); - - String title = getText (); - if (title.length () == 0) title = SWT.getMessage ("SWT_ColorDialog_Title"); - shell.setText(title); - - dialog.open(); -} -void openModal() { - Display display = shell.display; - initializeWidgets(); - openDialog(); - while (shell.isDisposed() == false && shell.getVisible() == true) { - if (display.readAndDispatch() == false) { - display.sleep(); - } - } -} -void paint(Event event) { - for (int column = 0; column < colorGrid.length; column++) { - for (int row = 0; row < colorGrid[0].length; row++) { - drawColor(column, row, colorGrid[column][row], event.gc); - } - } -} -void setColorDepth(int bits) { - if (bits == 4) { - colorSwatchExtent = COLORSWATCH_SIZE_DEPTH4; - colorGrid = new Color[8][2]; - initialize4BitColors(); - return; - } - if (bits == 8) { - colorSwatchExtent = COLORSWATCH_SIZE_DEPTH8; - colorGrid = new Color[25][5]; - initialize8BitColors(); - return; - } - // default case: 16, 24 or 32 bits - colorSwatchExtent = COLORSWATCH_SIZE_DEPTH16; - colorGrid = new Color[32][8]; - initialize16BitColors(); -} -/** - * Sets the receiver's selected color to be the argument. - * - * @param rgb the new RGB value for the selected color, may be - * null to let the platform select a default when - * open() is called - * @see PaletteData#getRGBs - */ -public void setRGB(RGB rgb) { - this.rgb = rgb; -} -} |