1 /*******************************************************************************
\r
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
\r
3 * in Industry THTH ry.
\r
4 * All rights reserved. This program and the accompanying materials
\r
5 * are made available under the terms of the Eclipse Public License v1.0
\r
6 * which accompanies this distribution, and is available at
\r
7 * http://www.eclipse.org/legal/epl-v10.html
\r
10 * VTT Technical Research Centre of Finland - initial API and implementation
\r
11 *******************************************************************************/
\r
12 package org.simantics.utils.ui.color;
\r
15 import java.util.ArrayList;
\r
16 import java.util.Collections;
\r
17 import java.util.HashMap;
\r
19 import org.eclipse.jface.layout.GridDataFactory;
\r
20 import org.eclipse.jface.util.IPropertyChangeListener;
\r
21 import org.eclipse.jface.util.PropertyChangeEvent;
\r
22 import org.eclipse.jface.viewers.CellEditor;
\r
23 import org.eclipse.jface.viewers.ColorCellEditor;
\r
24 import org.eclipse.jface.viewers.ICellEditorListener;
\r
25 import org.eclipse.jface.viewers.ICellModifier;
\r
26 import org.eclipse.jface.viewers.ILabelProviderListener;
\r
27 import org.eclipse.jface.viewers.ISelectionChangedListener;
\r
28 import org.eclipse.jface.viewers.IStructuredContentProvider;
\r
29 import org.eclipse.jface.viewers.IStructuredSelection;
\r
30 import org.eclipse.jface.viewers.ITableLabelProvider;
\r
31 import org.eclipse.jface.viewers.SelectionChangedEvent;
\r
32 import org.eclipse.jface.viewers.StructuredSelection;
\r
33 import org.eclipse.jface.viewers.TableViewer;
\r
34 import org.eclipse.jface.viewers.TextCellEditor;
\r
35 import org.eclipse.jface.viewers.Viewer;
\r
36 import org.eclipse.swt.SWT;
\r
37 import org.eclipse.swt.events.SelectionEvent;
\r
38 import org.eclipse.swt.events.SelectionListener;
\r
39 import org.eclipse.swt.graphics.Image;
\r
40 import org.eclipse.swt.graphics.RGB;
\r
41 import org.eclipse.swt.layout.FillLayout;
\r
42 import org.eclipse.swt.layout.GridLayout;
\r
43 import org.eclipse.swt.widgets.Button;
\r
44 import org.eclipse.swt.widgets.ColorDialog;
\r
45 import org.eclipse.swt.widgets.Composite;
\r
46 import org.eclipse.swt.widgets.Table;
\r
47 import org.eclipse.swt.widgets.TableColumn;
\r
48 import org.eclipse.swt.widgets.TableItem;
\r
51 * Widget to create and edit color gradients
\r
53 * @author Marko Luukkainen
\r
56 public class ColorGradientComposite extends Composite implements ISelectionChangedListener, ICellEditorListener, IPropertyChangeListener{
\r
57 private static int ICON_WIDTH = 36;
\r
58 private static int ICON_HEIGHT = 14;
\r
60 private static final String COLOR_ID = "Color";
\r
61 private static final String VALUE_ID = "Value";
\r
64 private ColorGradientCanvas gradientComposite;
\r
65 private TableViewer viewer;
\r
66 private Button addButton;
\r
67 private Button editButton;
\r
68 private Button removeButton;
\r
69 private Button rgbButton;
\r
70 private Button hsvButton;
\r
71 private int type = ColorGradient.RGB;
\r
73 private ArrayList<ColorValue> values = new ArrayList<ColorValue>();
\r
74 private HashMap<ColorValue,Image> images = new HashMap<ColorValue,Image>();
\r
76 public ColorGradientComposite(Composite parent, int style) {
\r
77 super(parent,style);
\r
78 GridLayout layout = new GridLayout(2,false);
\r
79 this.setLayout(layout);
\r
80 gradientComposite = new ColorGradientCanvas(this,SWT.HORIZONTAL);
\r
84 // Group typeComposite = new Group(this,SWT.NONE);
\r
85 // typeComposite.setText("Interpolation");
\r
86 Composite typeComposite = new Composite(this, SWT.NONE);
\r
88 typeComposite.setLayout(new GridLayout(1,false));
\r
89 rgbButton = new Button(typeComposite,SWT.RADIO);
\r
90 rgbButton.setSelection(true);
\r
91 rgbButton.addSelectionListener(new SelectionListener() {
\r
92 public void widgetDefaultSelected(SelectionEvent e) {
\r
95 public void widgetSelected(SelectionEvent e) {
\r
96 rgbButton.setSelection(true);
\r
97 hsvButton.setSelection(false);
\r
98 type = ColorGradient.RGB;
\r
99 gradientComposite.setGradient(new ColorGradient(values,type));
\r
102 rgbButton.setText("RGB");
\r
103 hsvButton = new Button(typeComposite,SWT.RADIO);
\r
104 hsvButton.addSelectionListener(new SelectionListener() {
\r
105 public void widgetDefaultSelected(SelectionEvent e) {
\r
108 public void widgetSelected(SelectionEvent e) {
\r
109 hsvButton.setSelection(true);
\r
110 rgbButton.setSelection(false);
\r
111 type = ColorGradient.HSV;
\r
112 gradientComposite.setGradient(new ColorGradient(values,type));
\r
115 hsvButton.setText("HSV");
\r
117 viewer = new TableViewer(this,SWT.SINGLE | SWT.BORDER | SWT.FULL_SELECTION);
\r
118 final Table table = viewer.getTable();
\r
120 table.setLinesVisible(true);
\r
121 table.setHeaderVisible(true);
\r
123 viewer.addSelectionChangedListener(this);
\r
124 viewer.addPostSelectionChangedListener(this);
\r
126 TableColumn column = new TableColumn(table,SWT.RIGHT);
\r
127 column.setText("Color");
\r
128 column.setWidth(60);
\r
129 column.setMoveable(false);
\r
130 column.setResizable(false);
\r
131 column = new TableColumn(table,SWT.LEFT);
\r
132 column.setText("Value");
\r
133 column.setWidth(300);
\r
134 column.setMoveable(false);
\r
136 viewer.setColumnProperties(new String[]{COLOR_ID,VALUE_ID});
\r
138 viewer.setLabelProvider(new TableLabelProvider());
\r
139 viewer.setContentProvider(new TableContentProvider());
\r
140 viewer.setInput(values);
\r
142 final ColorCellEditor colorEditor = new ColorCellEditor(table);
\r
143 final TextCellEditor valueEditor = new TextCellEditor(table);
\r
144 colorEditor.addListener(this);
\r
145 valueEditor.addListener(this);
\r
146 valueEditor.addPropertyChangeListener(this);
\r
147 viewer.setCellEditors(new CellEditor[]{colorEditor,valueEditor});
\r
149 viewer.setCellModifier(new TableCellEditorModifier());
\r
151 Composite buttonComposite = new Composite(this,SWT.NONE);
\r
153 buttonComposite.setLayout(new FillLayout(SWT.VERTICAL));
\r
155 addButton = new Button(buttonComposite,SWT.PUSH);
\r
156 addButton.setText("Add new color");
\r
157 addButton.addSelectionListener(new org.eclipse.swt.events.SelectionAdapter() {
\r
158 public void widgetSelected(org.eclipse.swt.events.SelectionEvent e) {
\r
159 ColorDialog dialog = new ColorDialog(ColorGradientComposite.this.getShell(), SWT.NONE);
\r
161 RGB rgb = dialog.open();
\r
163 Color c = new Color(rgb.red,rgb.green,rgb.blue);
\r
165 if (values.size() == 0) {
\r
167 } else if (values.size() == 1) {
\r
170 StructuredSelection selection = (StructuredSelection)viewer.getSelection();
\r
171 if (selection.size() == 1) {
\r
172 // add new color next to the selection
\r
173 ColorValue v = (ColorValue)selection.getFirstElement();
\r
174 int index = values.indexOf(v);
\r
175 if (index == values.size() -1) {
\r
178 value = (values.get(index+1).getValue()-values.get(index).getValue())*0.5;
\r
179 value += values.get(index).getValue();
\r
181 // add new color to largest gap
\r
184 for (int i = 0; i < values.size() -1; i++) {
\r
185 double v1 = values.get(i).getValue();
\r
186 double v2 = values.get(i+1).getValue();
\r
187 double vr = v2 -v1;
\r
193 value = values.get(index).getValue() + r *0.5;
\r
200 editButton = new Button(buttonComposite,SWT.PUSH);
\r
201 editButton.setText("Edit color");
\r
202 editButton.addSelectionListener(new org.eclipse.swt.events.SelectionAdapter() {
\r
203 public void widgetSelected(org.eclipse.swt.events.SelectionEvent e) {
\r
204 TableItem selection[] = table.getSelection();
\r
205 if (selection.length > 0) {
\r
206 TableItem selected = selection[0];
\r
207 Object obj = selected.getData();
\r
208 if (obj instanceof ColorValue) {
\r
209 ColorDialog dialog = new ColorDialog(ColorGradientComposite.this.getShell(), SWT.NONE);
\r
210 dialog.setRGB(getRGB(((ColorValue)obj).getColor()));
\r
211 RGB rgb = dialog.open();
\r
213 modifyColorValueColor((ColorValue)obj,rgb);
\r
219 editButton.setEnabled(false);
\r
220 removeButton = new Button(buttonComposite,SWT.PUSH);
\r
221 removeButton.setText("Remove color");
\r
222 removeButton.addSelectionListener(new org.eclipse.swt.events.SelectionAdapter() {
\r
223 public void widgetSelected(org.eclipse.swt.events.SelectionEvent e) {
\r
224 TableItem selection[] = table.getSelection();
\r
225 if (selection.length > 0) {
\r
226 TableItem selected = selection[0];
\r
227 Object o = selected.getData();
\r
228 if (o instanceof ColorValue) {
\r
229 Image i = images.get(o);
\r
238 removeButton.setEnabled(false);
\r
240 GridDataFactory.fillDefaults().span(1, 1).grab(true, false).align(SWT.FILL, SWT.CENTER).hint(SWT.DEFAULT, 32).applyTo(gradientComposite);
\r
241 GridDataFactory.fillDefaults().grab(true, false).align(SWT.FILL, SWT.CENTER).hint(SWT.DEFAULT, 100).applyTo(table);
\r
242 GridDataFactory.fillDefaults().grab(false, true).align(SWT.LEFT, SWT.FILL).applyTo(typeComposite);
\r
243 GridDataFactory.fillDefaults().span(1, 1).grab(true, false).align(SWT.FILL, SWT.TOP).applyTo(buttonComposite);
\r
248 public void addColor(Color color, double value) {
\r
249 addColor(new ColorValue(color,value));
\r
252 public void addColor(ColorValue value) {
\r
254 Image image = ColorIconCreator.createImage(value.getColor(), ICON_WIDTH, ICON_HEIGHT, SWT.BORDER);
\r
255 images.put(value,image);
\r
257 //viewer.refresh(true);
\r
260 private void updateWidgets() {
\r
261 Collections.sort(values,new ColorValueComparator());
\r
262 gradientComposite.setGradient(new ColorGradient(values,type));
\r
267 public ColorGradient getGradient() {
\r
268 return new ColorGradient(values,type);
\r
271 public void dispose() {
\r
272 for (Image i : images.values())
\r
277 public void setGradient(ColorGradient gradient) {
\r
278 for (Image i : images.values())
\r
282 type = gradient.getType();
\r
283 for (ColorValue value : gradient.getColorValues())
\r
285 if (type == ColorGradient.HSV) {
\r
286 rgbButton.setSelection(false);
\r
287 hsvButton.setSelection(true);
\r
288 } else if (type == ColorGradient.RGB) {
\r
289 hsvButton.setSelection(false);
\r
290 rgbButton.setSelection(true);
\r
295 private RGB getRGB(Color color) {
\r
296 RGB rgb = new RGB(color.getR(),color.getG(),color.getB());
\r
300 private void modifyColorValueValue(ColorValue cValue, String string) {
\r
302 double d = Double.parseDouble(string);
\r
303 values.remove(cValue);
\r
304 Image image = images.get(cValue);
\r
305 images.remove(cValue);
\r
306 ColorValue newCValue = new ColorValue(cValue.getColor(),d);
\r
307 values.add(newCValue);
\r
308 images.put(newCValue,image);
\r
311 } catch (NumberFormatException e) {
\r
316 private void modifyColorValueColor(ColorValue cValue, RGB rgb) {
\r
317 values.remove(cValue);
\r
318 Image oldImage = images.get(cValue);
\r
319 oldImage.dispose();
\r
320 images.remove(cValue);
\r
322 Color newColor = new Color(rgb.red,rgb.green,rgb.blue);
\r
323 ColorValue newCValue = new ColorValue(newColor,cValue.getValue());
\r
324 values.add(newCValue);
\r
325 Image newImage = ColorIconCreator.createImage(newColor, ICON_WIDTH, ICON_HEIGHT, SWT.BORDER);
\r
326 images.put(newCValue,newImage);
\r
331 * Enables and disables "Edit color" and "Remove color" buttons depending on selected item
\r
333 public void selectionChanged(SelectionChangedEvent event) {
\r
334 Object obj = ((IStructuredSelection)event.getSelection()).getFirstElement();
\r
336 editButton.setEnabled(false);
\r
337 removeButton.setEnabled(false);
\r
339 editButton.setEnabled(true);
\r
340 removeButton.setEnabled(true);
\r
346 * If item is opened for editing selectionChanged won't get null selection and
\r
347 * "Edit" & "Remove" buttons are enabled when there's no valid selection
\r
349 * There seems to be no way to get event when cellEditor is activated...
\r
352 public void applyEditorValue() {
\r
353 // TODO Auto-generated method stub
\r
354 editButton.setEnabled(false);
\r
355 removeButton.setEnabled(false);
\r
358 public void cancelEditor() {
\r
359 // TODO Auto-generated method stub
\r
360 editButton.setEnabled(false);
\r
361 removeButton.setEnabled(false);
\r
364 public void editorValueChanged(boolean oldValidState, boolean newValidState) {
\r
365 // TODO Auto-generated method stub
\r
366 editButton.setEnabled(false);
\r
367 removeButton.setEnabled(false);
\r
370 public void propertyChange(PropertyChangeEvent event) {
\r
371 editButton.setEnabled(false);
\r
372 removeButton.setEnabled(false);
\r
376 * @author Marko Luukkainen
\r
379 private class TableLabelProvider implements ITableLabelProvider {
\r
380 private ArrayList<ILabelProviderListener> listeners = new ArrayList<ILabelProviderListener>();
\r
383 * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
\r
385 public void dispose() {
\r
389 * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang.Object, int)
\r
391 public Image getColumnImage(Object element, int columnIndex) {
\r
392 //System.out.println("TableLabelProvider.getColumnImage() " + element + " , " + columnIndex);
\r
393 ColorValue value = (ColorValue)element;
\r
394 if (columnIndex == 0)
\r
395 return images.get(value);
\r
399 * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang.Object, int)
\r
401 public String getColumnText(Object element, int columnIndex) {
\r
402 //System.out.println("TableLabelProvider.getColumnText() " + element + " , " + columnIndex);
\r
403 ColorValue value = (ColorValue)element;
\r
404 if (columnIndex == 1)
\r
405 return Double.toString(value.getValue());
\r
409 * @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang.Object, java.lang.String)
\r
411 public boolean isLabelProperty(Object element, String property) {
\r
415 * @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener)
\r
417 public void addListener(ILabelProviderListener listener) {
\r
418 if(!listeners.contains(listener))
\r
419 listeners.add(listener);
\r
422 * @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener)
\r
424 public void removeListener(ILabelProviderListener listener) {
\r
425 listeners.remove(listener);
\r
432 * @author Marko Luukkainen
\r
435 private class TableContentProvider implements IStructuredContentProvider {
\r
436 public void dispose() {
\r
439 public Object[] getElements(Object inputElement) {
\r
440 ColorValue valueArray[] = new ColorValue[values.size()];
\r
441 // values.toArray(valueArray);
\r
442 // to get correct ordering (smallest last)
\r
443 // we must reverse the order of the list
\r
444 for (int i = 0; i < values.size(); i++) {
\r
445 valueArray[i] = values.get(values.size() - 1 -i);
\r
447 //System.out.println("TableContentProvider.getElements() : array size " + valueArray.length);
\r
450 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
\r
451 //System.out.println("TableContentProvider.inputChanged()");
\r
457 * @author Marko Luukkainen
\r
460 private class TableCellEditorModifier implements ICellModifier {
\r
461 public boolean canModify(Object element, String property) {
\r
462 //System.out.println("TableCellEditorModifier.canModify()" + element + " , " + property);
\r
463 if (property == VALUE_ID)
\r
465 // this is commented out because it's hard so select the row when both rows have editors
\r
466 // now the color can be changed with "Edit Color" button
\r
467 //if (property == COLOR_ID)
\r
471 public Object getValue(Object element, String property) {
\r
472 //System.out.println("TableCellEditorModifier.getValue()" + element + " , " + property);
\r
473 if (property == VALUE_ID)
\r
474 return Double.toString(((ColorValue)element).getValue());
\r
475 if (property == COLOR_ID)
\r
476 return getRGB(((ColorValue)element).getColor());
\r
480 public void modify(Object element, String property, Object value) {
\r
481 TableItem item = (TableItem)element;
\r
482 Object obj = item.getData();
\r
483 //System.out.println("TableCellEditorModifier.modify()" + element + " , " + property + " , " + value);
\r
484 if (property == VALUE_ID)
\r
485 modifyColorValueValue((ColorValue)obj,(String)value);
\r
486 if (property == COLOR_ID)
\r
487 modifyColorValueColor((ColorValue)obj,(RGB)value);
\r