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author | Veronika Irvine <veronika> | 2006-03-30 20:51:33 +0000 |
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committer | Veronika Irvine <veronika> | 2006-03-30 20:51:33 +0000 |
commit | c9c7ee9de1a9e51baa7e00d87addc6a41b0d9af6 (patch) | |
tree | 0c03881967ae4884b22a9d3a617aa245107b9189 /examples/org.eclipse.swt.snippets/src/org | |
parent | 44ca7557e36af39711898bb9f6b7b8a95070675b (diff) | |
download | eclipse.platform.swt-c9c7ee9de1a9e51baa7e00d87addc6a41b0d9af6.tar.gz eclipse.platform.swt-c9c7ee9de1a9e51baa7e00d87addc6a41b0d9af6.tar.xz eclipse.platform.swt-c9c7ee9de1a9e51baa7e00d87addc6a41b0d9af6.zip |
new custom draw snippets for Table
Diffstat (limited to 'examples/org.eclipse.swt.snippets/src/org')
3 files changed, 287 insertions, 0 deletions
diff --git a/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet229.java b/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet229.java new file mode 100644 index 0000000000..61650a0b2f --- /dev/null +++ b/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet229.java @@ -0,0 +1,97 @@ +/******************************************************************************* + * Copyright (c) 2000, 2006 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.snippets; + +/* + * Table example snippet: Draw a custom gradient selection + * + * For a list of all SWT example snippets see + * http://www.eclipse.org/swt/snippets/ + * + * @since 3.2 + */ + +import org.eclipse.swt.*; +import org.eclipse.swt.graphics.*; +import org.eclipse.swt.layout.*; +import org.eclipse.swt.widgets.*; + +public class Snippet229 { +public static void main(String [] args) { + final Display display = new Display(); + Shell shell = new Shell(display); + shell.setText("Custom gradient selection for Table"); + shell.setLayout(new FillLayout()); + final Table table = new Table(shell, SWT.MULTI | SWT.FULL_SELECTION); + table.setHeaderVisible(true); + table.setLinesVisible(true); + int columnCount = 3; + for (int i=0; i<columnCount; i++) { + TableColumn column = new TableColumn(table, SWT.NONE); + column.setText("Column " + i); + } + int itemCount = 8; + for(int i = 0; i < itemCount; i++) { + TableItem item = new TableItem(table, SWT.NONE); + item.setText(new String[] {"item "+i+" a", "item "+i+" b", "item "+i+" c"}); + } + /* + * NOTE: MeasureItem, PaintItem and EraseItem are called repeatedly. + * Therefore, it is critical for performance that these methods be + * as efficient as possible. + */ + table.addListener(SWT.EraseItem, new Listener() { + public void handleEvent(Event event) { + if((event.detail & SWT.SELECTED) != 0) { + GC gc = event.gc; + Rectangle area = table.getClientArea(); + /* + * If you wish to paint the selection beyond the end of + * last column, you must change the clipping region. + */ + int columnCount = table.getColumnCount(); + if (event.index == columnCount - 1 || columnCount == 0) { + int width = area.x + area.width - event.x; + if (width > 0) { + Region region = new Region(); + gc.getClipping(region); + region.add(event.x, event.y, width, event.height); + gc.setClipping(region); + region.dispose(); + } + } + gc.setAdvanced(true); + if (gc.getAdvanced()) gc.setAlpha(127); + Rectangle rect = event.getBounds(); + Color foreground = gc.getForeground(); + Color background = gc.getBackground(); + gc.setForeground(display.getSystemColor(SWT.COLOR_RED)); + gc.setBackground(display.getSystemColor(SWT.COLOR_LIST_BACKGROUND)); + gc.fillGradientRectangle(0, rect.y, display.getBounds().width, rect.height, false); + // restore colors for subsequent drawing + gc.setForeground(foreground); + gc.setBackground(background); + event.detail &= ~SWT.SELECTED; + } + } + }); + for (int i=0; i<columnCount; i++) { + table.getColumn(i).pack(); + } + table.setSelection(table.getItem(0)); + shell.setSize(500, 200); + shell.open(); + while (!shell.isDisposed()) { + if (!display.readAndDispatch()) display.sleep(); + } + display.dispose(); +} +}
\ No newline at end of file diff --git a/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet230.java b/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet230.java new file mode 100644 index 0000000000..ee062dbbcd --- /dev/null +++ b/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet230.java @@ -0,0 +1,86 @@ +/******************************************************************************* + * Copyright (c) 2000, 2006 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.snippets; + +/* + * Table example snippet: Images on the right hand side of a TableItem + * + * For a list of all SWT example snippets see + * http://www.eclipse.org/swt/snippets/ + * + * @since 3.2 + */ + +import org.eclipse.swt.*; +import org.eclipse.swt.graphics.*; +import org.eclipse.swt.layout.*; +import org.eclipse.swt.widgets.*; + +public class Snippet230 { + +public static void main(String [] args) { + Display display = new Display(); + final Image image = display.getSystemImage(SWT.ICON_INFORMATION); + Shell shell = new Shell(display); + shell.setText("Images on the right side of the TableItem"); + shell.setLayout(new FillLayout ()); + Table table = new Table(shell, SWT.MULTI | SWT.FULL_SELECTION); + table.setHeaderVisible(true); + table.setLinesVisible(true); + int columnCount = 3; + for (int i=0; i<columnCount; i++) { + TableColumn column = new TableColumn(table, SWT.NONE); + column.setText("Column " + i); + } + int itemCount = 8; + for(int i = 0; i < itemCount; i++) { + TableItem item = new TableItem(table, SWT.NONE); + item.setText(new String[] {"item "+i+" a", "item "+i+" b", "item "+i+" c"}); + } + /* + * NOTE: MeasureItem, PaintItem and EraseItem are called repeatedly. + * Therefore, it is critical for performance that these methods be + * as efficient as possible. + */ + Listener paintListener = new Listener() { + public void handleEvent(Event event) { + switch(event.type) { + case SWT.MeasureItem: { + Rectangle rect = image.getBounds(); + event.width += rect.width; + event.height = Math.max(event.height, rect.height + 2); + break; + } + case SWT.PaintItem: { + int x = event.x + event.width; + Rectangle rect = image.getBounds(); + int offset = Math.max(0, (event.height - rect.height) / 2); + event.gc.drawImage(image, x, event.y + offset); + break; + } + } + } + }; + table.addListener(SWT.MeasureItem, paintListener); + table.addListener(SWT.PaintItem, paintListener); + + for(int i = 0; i < columnCount; i++) { + table.getColumn(i).pack(); + } + shell.setSize(500, 200); + shell.open(); + while(!shell.isDisposed ()) { + if(!display.readAndDispatch()) display.sleep(); + } + if(image != null) image.dispose(); + display.dispose(); +} +} diff --git a/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet231.java b/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet231.java new file mode 100644 index 0000000000..388164ee08 --- /dev/null +++ b/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet231.java @@ -0,0 +1,104 @@ +/******************************************************************************* + * Copyright (c) 2000, 2006 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.snippets; + +/* + * example snippet: Multiple lines per TableItem + * + * For a list of all SWT example snippets see + * http://www.eclipse.org/swt/snippets/ + * + * @since 3.2 + */ + +import org.eclipse.swt.*; +import org.eclipse.swt.graphics.*; +import org.eclipse.swt.layout.*; +import org.eclipse.swt.widgets.*; + +public class Snippet231 { + +public static void main(String [] args) { + Display display = new Display(); + Shell shell = new Shell (display); + shell.setText("Multiple lines in a TableItem"); + shell.setLayout (new FillLayout()); + final Table table = new Table(shell, SWT.MULTI | SWT.FULL_SELECTION); + table.setHeaderVisible(true); + table.setLinesVisible(true); + int columnCount = 4; + for (int i=0; i<columnCount; i++) { + TableColumn column = new TableColumn(table, SWT.NONE); + column.setText("Column " + i); + } + int itemCount = 8; + for(int i = 0; i < itemCount; i++) { + TableItem item = new TableItem(table, SWT.NONE); + item.setText(new String[] {"item "+i+" a", "item "+i+" b", "item "+i+" c", "item "+i+" d"}); + } + /* + * NOTE: MeasureItem, PaintItem and EraseItem are called repeatedly. + * Therefore, it is critical for performance that these methods be + * as efficient as possible. + */ + Listener paintListener = new Listener() { + public void handleEvent(Event event) { + switch(event.type) { + case SWT.MeasureItem: { + TableItem item = (TableItem)event.item; + String text = getText(item, event.index); + Point size = event.gc.textExtent(text); + event.width = size.x; + event.height = Math.max(event.height, size.y); + break; + } + case SWT.PaintItem: { + TableItem item = (TableItem)event.item; + String text = getText(item, event.index); + Point size = event.gc.textExtent(text); + int offset2 = event.index == 0 ? Math.max(0, (event.height - size.y) / 2) : 0; + event.gc.drawText(text, event.x, event.y + offset2, true); + break; + } + case SWT.EraseItem: { + event.detail &= ~SWT.FOREGROUND; + break; + } + } + } + String getText(TableItem item, int column) { + String text = item.getText(column); + if (column != 0) { + int index = table.indexOf(item); + if ((index+column) % 3 == 1){ + text +="\nnew line"; + } + if ((index+column) % 3 == 2) { + text +="\nnew line\nnew line"; + } + } + return text; + } + }; + table.addListener(SWT.MeasureItem, paintListener); + table.addListener(SWT.PaintItem, paintListener); + table.addListener(SWT.EraseItem, paintListener); + for (int i = 0; i < columnCount; i++) { + table.getColumn(i).pack(); + } + shell.pack(); + shell.open(); + while(!shell.isDisposed()) { + if(!display.readAndDispatch()) display.sleep(); + } + display.dispose(); +} +}
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