The Eclipse Graphical Editing Framework (GEF)

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The Eclipse Graphical Editing Framework (GEF) (New Edition) Pub. Date: 8/21/2011 Publisher: Addison Wesley Professional

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Overview

As Eclipse-based applications become increasingly popular, users are demanding more sophisticated graphical interfaces. When standard widgets aren’t enough, graphics built with GEF are often the best solution. The Eclipse Graphical Editing Framework (GEF) covers everything Java tool developers need to create tomorrow’s richest, most visual interfaces.

This practical, hands-on guide begins by introducing GEF, Draw2D, and Zest, and demonstrating what can be achieved with them. Next, the authors walk through building a simple Draw2D example, helping new GEF developers understand the core capabilities available to them. Building on this foundation, they progressively introduce more of the Draw2D frameworks, including Figures, Layout Managers, Connections, Layers, and Viewports. They present a chapter-length graph visualization project based on Zest, followed by detailed coverage of non-Draw2D portions of GEF.

The book’s final section walks step by step through developing a complete GEF editor. Each chapter focuses on a different aspect of the problem, and includes challenges, solutions, diagrams, screenshots, cookbook-style code examples, and more.

This book is organized to help developers solve immediate problems quickly, while also gaining in-depth knowledge for building advanced solutions. Relevant APIs are included in several chapters, making this an even more useful standalone reference.

This book

Introduces GEF application components such as shapes, flow, logic, and text
Explains Draw2D architecture, drawing features, and event processing
Shows how to create and customize figures, use painting and borders, and work with each Draw2D Layout Manager
Thoroughly explains GEF models, including domain and presentation information, populating diagrams, and more
Shows how to use Zest’s content providers, filters, and layout algorithms
Covers EditParts, EditPolicies, Tools, Commands, Actions, and much more

The Eclipse Graphical Editing Framework (GEF)

is the best resource for all Java tool developers who want to construct sophisticated graphical editing products that integrate with Eclipse, for experienced Eclipse users who want to start creating their own graphical tools, and for anyone who wants to see what makes GEF tick.

Product Details

ISBN-13: 9780321718389
Publisher: Addison Wesley Professional
Publication date: 8/21/2011
Edition description: New Edition
Edition number: 1
Pages: 312
Sales rank: 1,163,778
Series: Eclipse Series
Product dimensions: 7.00 (w) x 9.00 (h) x 0.80 (d)

Meet the Author

Dan Rubel, Senior Software Engineer at Google, is an entrepreneur and an expert in the design and application of object technologies. He has architected and managed several successful commercial products, and was cofounder and CTO of Instantiations, which was acquired by Google.

Jaime Wren, a software engineer at Google, has extensive experience developing commercial Eclipse-based tools. At Instantiations, he made significant contributions to the CodePro and WindowBuilder product lines. He continues to work on WindowBuilder as a member of the Google Web Toolkit (GWT) team.

Eric Clayberg, Software Engineering Manager for Google, is a seasoned software technologist, product developer, entrepreneur, and manager, with extensive Java and Eclipse experience. The primary author and architect of more than a dozen commercial Java and Smalltalk add-on products, he cofounded both ObjectShare and Instantiations.

Foreword by Mike Milinkovich xix

Preface xxi

Chapter 1: What Is GEF? 1

1.1 GEF Overview 1

1.2 GEF Example Applications 2

1.3 Summary 6

Chapter 2: A Simple Draw2D Example 7

2.1 Draw2D Installation 7

2.2 Draw2D Project 8

2.3 Draw2D Application 9

2.4 Draw2D View 15

2.5 Draw2D Events 17

2.6 Book Samples 20

2.7 Summary 20

Chapter 3: Draw2D Infrastructure 21

3.1 Architecture 21

3.2 Drawing 23

3.3 Processing Events 24

3.4 Summary 25

Chapter 4: Figures 27

4.1 IFigure 27

4.2 Common Figures 29

4.3 Custom Figures 33

4.4 Painting 37

4.5 Borders 42

4.6 Summary 53

Chapter 5: Layout Managers 55

5.1 List Constraints 55

5.2 Minimum, Maximum, and Preferred Size 56

5.3 Common Layout Managers 57

5.4 Using Layout Managers 63

5.5 Summary 67

Chapter 6: Connections 69

6.1 Common Anchors 70

6.2 Custom Anchors 72

6.3 Decorations 76

6.4 Routing Connections 80

6.5 Connection Labels 86

6.6 Summary 90

Chapter 7: Layers and Viewports 91

7.1 Layers 91

7.2 Scrolling 96

7.3 Coordinates 101

7.4 Scaling 104

7.5 Summary 112

Chapter 8: GEF Models 113

8.1 Genealogy Model 113

8.2 Populating the Diagram 116

8.3 Storing the Diagram 126

8.4 Summary 128

Chapter 9: Zest 129

9.1 Setup 129

9.2 GraphViewer 131

9.3 Content Provider 132

9.4 Presentation 137

9.5 Nested Content 156

9.6 Filters 157

9.7 Layout Algorithms 160

9.8 Summary 173

Chapter 10: GEF Plug-in Overview 175

10.1 MVC Architecture 176

10.2 EditPartViewer 178

10.3 Tools, Actions, Policies, Requests, and Commands 180

10.4 Summary 183

Chapter 11: GEF View 185

11.1 Setup 185

11.2 GEF Viewer 186

11.4 Connections 193

11.5 Summary 200

Chapter 12: GEF Editor 201

12.1 Setup 201

12.2 GenealogyGraphEditor 201

12.3 Selection 207

12.4 Summary 218

Chapter 13: Commands and Tools 219

13.1 Listening for Model Changes 219

13.2 Commands 226

13.3 EditPolicies 233

13.4 Global Edit Menu Actions 248

13.5 Palette and Tools 249

13.6 Summary 253

Index 255

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