Tables of Contents for Learning Perl/Tk

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Tables of Contents for Learning Perl/Tk

Chapter/Section Title

Page #

Page Count

Preface

xi

1. Introduction to Perl/TK

1

14

A Bit of History About Perl (and Tk)

1

1

Perl/Tk for Both Unix and Windows 95/NT

2

1

Why Use a Graphical Interface?

2

1

Why Use Perl/Tk?

3

2

Installing the Tk Module

5

1

Creating Widgets

6

2

Coding Style

8

1

Displaying a Widget

9

1

The Anatomy of an Event Loop

9

1

Hello World Example

10

2

Using exit Versus Using destroy

12

1

Naming Conventions for Widget Types

12

1

Using print for Diagnostic/Debugging Purposes

13

1

Designing Your Windows (A Short Lecture)

14

1

2. Geometry Management

15

42

Pack

16

18

Grid

34

13

Place

47

9

Geometry Management Summary

56

1

3. The Basic Button

57

24

The Button Widget

57

23

Some Fun Things to Try

80

1

4. Checkbuttons and Radiobuttons

81

21

The Checkbutton Widget

81

12

The Radiobutton Widget

93

8

Fun Things to Try

101

1

5. Label and Entry Widgets

102

22

The Label Widget

102

6

The Entry Widget

108

15

Fun Things to Try

123

1

6. Scrollbars

124

17

Defining Scrollbar Parts

124

2

The Scrolled Method

126

2

The Scrollbar Widget

128

9

Examples

137

3

Fun Things to Try

140

1

7. The Listbox Widget

141

13

Creating and Filling a Listbox

141

1

Listbox Options

142

2

Selection Modes

144

1

Colors

145

1

Listbox Style

146

1

Configuring a Listbox

147

1

Inserting Items

147

1

Deleting Items

148

1

Retrieving Elements

148

1

Selection Methods

149

1

Moving to a Specific Index

150

1

Translating Indexes

150

1

Counting Items

150

1

Active Versus Selected

150

1

Bounding Box

151

1

Finding an Index by Y Coordinate

151

1

Scrolling Methods

151

1

Listbox Example

152

1

Fun Things to Try

153

1

8. The Text Widget

154

27

Creating and Using a Text Widget

154

1

Text Widget Options

155

5

A Short Break for a Simple Example

160

1

Text Indexes

161

3

Text Tags

164

7

Inserting Text

171

1

Deleting Text

172

1

Retrieving Text

172

1

Translating Index Values

172

1

Comparing Index Values

173

1

Showing an Index

173

1

Getting the Size of a Character

173

1

Getting Line Information

173

1

Searching the Contents of a Text Widget

174

1

Scrolling

175

1

Marks

175

1

Embedding Widgets

176

3

Internal Debug Flag

179

1

Fun Things to Try

180

1

9. The Canvas Widget

181

29

Creating a Canvas

181

1

Coordinate System

182

1

The Scrollable Region

183

1

Using Bind With a Canvas

184

1

Canvas Options

184

4

Creating Items in a Canvas

188

10

Configuring the Canvas Widget

198

1

Configuring Items in the Canvas Widget

199

1

Tags

199

3

Retrieving Bounding Box Coordinates

202

1

Translating Coordinates

202

1

Moving Items Around

202

1

Changing the Display List

203

1

Deleting Items

203

1

Deleting Tags

204

1

Determining Item Type

204

1

Set Keyboard Focus

204

1

Rendering the Canvas as PostScript

204

1

Scaling the Canvas

205

1

Scanning

206

1

A Drawing Program Example

206

3

Fun Things to Try

209

1

10. The Scale Widget

210

8

Creating a Scale

210

3

Assigning a Callback

213

1

Orientation

213

1

Minimum and Maximum Values

213

1

Displayed Versus Stored Value

214

1

Adding a Label

214

1

Displaying Value Increments

214

1

Changing the Size of the Scale

215

1

Options You'll Probably Never Need

215

1

Configuring a Scale

216

1

Getting the Value of a Scale

216

1

Setting the Value of a Scale

216

1

Determining Coordinates

216

1

Identifying Parts of a Scale

216

1

Fun Things to Try

217

1

11. Menus

218

33

Different Types of Menus

218

2

The Menubutton Widget

220

16

Complete Menubutton Examples

236

2

The Menu Widget

238

10

Optionmenu Widget

248

2

Fun Things to Try

250

1

12. Frames

251

6

Creating a Frame

251

2

Frame Style

253

2

Frames Aren't Interactive

255

1

Colormap Complications

255

1

Frame Methods

256

1

Fun Things to Try

256

1

13. Toplevel Widgets

257

13

Creating a Toplevel Widget

257

3

Toplevel Methods

260

9

Review

269

1

Fun Things to Try

269

1

14. Binding Events

270

11

The bind Method

270

2

Arguments Sent to the Callback

272

1

Defining Event Sequences

273

5

Event Information

278

1

Bailing Out of a Callback Created with bind

279

1

The bindtags Method

280

1

Ways to Use bind

280

1

15. Composite Widgets

281

9

Looking at an Example Sideways

282

1

Location of Files

283

1

Creating a Composite Widget Based on Frame

284

5

Toplevel-Based Composite Widgets

289

1

16. Methods for Any Widget

290

19

Building a Family Tree

290

2

Color-Related Methods

292

1

Options Databases

293

2

The Application's Name

295

1

Widget Existence

295

1

Is the Widget Mapped?

295

1

Converting Screen Distances

295

1

Size of Widget

296

1

Widget Position

297

1

Screen Information

298

2

Atom Methods

300

1

Ringing a Bell

300

1

Clipboard Methods

300

1

Selection Methods

301

1

Destroying a Widget

302

1

Focus Methods

302

1

Grab Methods

303

1

Interapplication Communication

304

1

Waiting for Events to Happen

304

2

Parsing Command-Line Options

306

1

Time Delays

306

3

A. Configuring Widgets with configure and cget

309

22

B. Operating System Differences

331

3

C. Fonts

334

7

Index

341