GDI+ Programming : Creating Custom Controls Using C#

by White, Eric; Garrett, Chris; Robinson, Simon

ISBN13: 9781861006318

ISBN10: 1861006314

Format: Trade Paper

Pub. Date: 2002-06-01

Publisher(s): Springer-Verlag New York Inc

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Summary

Provides accessible, comprehensive GDI+ coverage for business applications. Oriented towards a business applications audience and developers using both Windows Forms and Web Forms. Softcover.

Introduction	p. 1
Who is this Book For?	p. 2
What Does this Book Cover?	p. 2
What You Need to Use this Book	p. 4
Style Conventions	p. 5
Customer Support and Feedback	p. 6
Source Code and Updates	p. 6
Errata	p. 6
Technical Support	p. 7
p2p.wrox.com	p. 7
An Overview of GDI+ and Custom Controls	p. 11
GDI+ and .NET	p. 12
What is GDI+?	p. 13
The GDI+ Namespaces	p. 16
Custom Controls	p. 17
Building Windows Forms Custom Controls	p. 17
Web Forms Custom Controls	p. 18
Creating Generic Code for both Windows Forms and Web Forms	p. 20
A First Example	p. 20
Summary	p. 35
Drawing Surfaces	p. 37
Drawing Surfaces	p. 38
Raster-based and Vector-based Drawing Surfaces	p. 38
The Characteristics of a Drawing Surface	p. 39
The Color Structure	p. 41
Drawing Surfaces in Different Environments	p. 44
A Summary of Drawing Surfaces	p. 46
The Graphics Class	p. 47
The GDI+ Coordinate System	p. 51
Summary	p. 62
Pens and Brushes	p. 65
Drawing with the Pen Object	p. 66
Controlling Properties of the Pen	p. 67
The Pens Class	p. 75
Filling with the Brush Object	p. 76
Using the Brush Classes	p. 76
The Brushes Class	p. 90
Creating a Pen from a Brush	p. 90
A Note about Performance	p. 91
Summary	p. 92
Text and Fonts	p. 95
An Overview of Text and Fonts	p. 96
Working with Fonts in GDI+	p. 97
Drawing Basic Text	p. 101
Formatting Text	p. 103
Font Styles	p. 104
Lines, Alignment, and Orientation	p. 105
Dealing with Fonts	p. 114
Finding Available Fonts	p. 114
Font Metrics and Precision Text Placement	p. 115
Quality of Text	p. 121
Summary	p. 127
Images	p. 131
An Overview of Image Handling	p. 132
The Image, Bitmap, and Metafile Classes	p. 132
Different Types of Bitmap	p. 135
Encoders and Decoders	p. 136
Pixel Format	p. 138
Displaying Images	p. 141
Checking the Size and Resolution	p. 142
Changing the Resolution of a Bitmap	p. 145
Image Resizing and Interpolation	p. 146
Manipulating Images	p. 148
Cropping an Image	p. 148
Skewing, Reflecting, and Rotating an Image	p. 149
Cloning an Image	p. 151
Getting a Thumbnail of an Image	p. 152
Creating and Drawing into an Image	p. 153
Creating a New Bitmap	p. 153
Double-buffering	p. 156
Working with Alpha in Images	p. 157
Getting and Setting Pixels	p. 160
Setting Alpha for an Entire Image	p. 162
Playing an Animation	p. 165
Converting a BMP to a JPEG	p. 167
Summary	p. 169
GraphicsPaths and Regions	p. 171
What are GraphicsPaths and Regions?	p. 171
The GraphicsPath Class	p. 172
The Region Class	p. 181
Summary	p. 187
Clipping and Invalidation	p. 191
The Clipping Region	p. 192
Cropping with the Clipping Region	p. 192
Selective Repainting with the Clipping Region	p. 198
Clipping at the Pixel Level	p. 207
Invalidation	p. 209
Using State in our Control	p. 209
How Invalidation Works	p. 210
A Few Clipping Tips	p. 214
Summary	p. 215
Transformations	p. 219
Transformations in GDI+	p. 219
Coordinate Systems and Transformations	p. 221
World Transformations	p. 222
Invalidation and Clipping	p. 235
Transformations and Custom Controls	p. 236
Summary	p. 236
Printing	p. 239
The Printing Process	p. 240
The Printing-related Classes in GDI+	p. 241
How is a Document Printed or Print-previewed?	p. 242
Using the Printing Classes	p. 243
A Simple Printing Example	p. 244
Selecting the Unit of Measurement	p. 254
Default Graphics Units	p. 255
The Ruler Printing Example	p. 256
Printing Metrics	p. 258
Displaying Printing Metrics	p. 260
Controlling the Printer Drawing Surface	p. 262
Where the User Changes the Settings	p. 266
Summary	p. 267
An Alternative Coordinate System	p. 271
Defining the Problem	p. 272
The Outline Model Coordinate System	p. 276
The GraphicsOM Class	p. 276
Creating a 3D Effect	p. 282
Summary	p. 286
Architecture and Design of Windows Forms Custom Controls	p. 289
Basic Principles	p. 290
What is a Component?	p. 291
What is a Custom Control?	p. 294
Building a Windows Forms Custom Control	p. 295
The Simple Custom Control Sample	p. 295
Using a Custom Control	p. 297
Creating a Test Application	p. 299
Adding Properties to our Custom Control	p. 301
Custom Control with Properties Example	p. 301
Creating a Test Application	p. 305
Default Values of Properties	p. 306
Custom Control with Default Property Values Sample	p. 306
Focus	p. 310
Focus Cues	p. 310
Steps to Implement a Focusable Control	p. 311
Focusable Control Example	p. 312
Creating a Test Application	p. 320
Generating Events	p. 322
Overview of Delegates and Events	p. 322
Events Example	p. 323
Create a Test Application	p. 326
Deriving from an Existing Control	p. 327
NumberTextBox Example	p. 327
Creating the Control	p. 328
Creating a Test Application	p. 332
Composite Custom Controls	p. 333
DataButtons Example	p. 334
Create a Test Application	p. 336
Designing Components and Custom Controls	p. 337
Advantages of Non-Procedural Constructs	p. 338
Designing Components Using this Philosophy	p. 339
Designing Events	p. 340
Summary	p. 340
Design-Time Support	p. 343
Basic Concepts	p. 343
Editing Properties in the Properties Window	p. 344
Editing the Control in the Design View	p. 346
Categorizing Properties and Events	p. 347
Improved Editing in the Properties Window	p. 348
The NumberRange Struct	p. 350
The TypeConverter-Derived Class	p. 351
The NumberTextBoxA Control	p. 356
Creating a Test Application	p. 358
Debugging Design-Time Code	p. 358
Creating a Modal Dialog Box Property Editor	p. 359
The NumberTextBoxB Control	p. 360
The NumberRangeDialog	p. 361
The NumberRangeEditor	p. 363
Creating a Test Application	p. 366
Creating a Drop-Down Property Editor	p. 367
The NumberRangeDropDown Control	p. 367
The NumberRangeEditor	p. 371
Creating a Test Application	p. 372
Implementing a Custom Designer	p. 373
The SimpleBlankControl	p. 374
The SimpleLineControl	p. 376
Summary	p. 382
Scrolling	p. 385
Building a Scrolling Sample	p. 386
Setting the Scrollbar Position	p. 387
Drawing in a Viewport	p. 388
Scrolling Techniques	p. 389
Which Approach do I Use?	p. 390
Placing a Non-Scrollable Control in a Panel	p. 392
Smooth Scrolling	p. 393
The SmoothScrollableControl Sample	p. 393
Testing the Control	p. 400
Summary	p. 401
Mouse Events and Cursors	p. 403
Mouse Events	p. 404
Mouse Cursors	p. 405
Standard Mouse Cursors	p. 406
The CursorsExample	p. 406
Custom Mouse Cursors	p. 408
Hit Testing and Drawing During Mouse Events	p. 409
The HitTestExample	p. 410
Mouse Event Routing	p. 414
The RoutingMouseEvents Sample	p. 415
Handling the CaptureChanged Event	p. 418
GDI and BitBlt	p. 421
Why Use GDI?	p. 422
Using BitBlt()	p. 423
The Simple BitBltExample	p. 424
Drawing While Dragging	p. 425
The AlphaDragExample	p. 425
Drag-Scrolling	p. 432
Demonstrating the 'Wiggle-the-Mouse Bug'	p. 433
Removing the Wiggle Bug	p. 441
Summary	p. 443
GDI+ Images in ASP.NET	p. 445
Internet Information Services (IIS)	p. 446
Documentation	p. 448
Security and Virtual Directories	p. 449
Reading and Serving Images	p. 450
Streams	p. 452
Reading an Image from a Remote Web Server	p. 453
Mixing HTML and Dynamic Images	p. 455
Modifying Images	p. 457
Creating a New Image	p. 462
Pie Charts	p. 466
Summary	p. 469
Creating Custom ASP.NET Server Controls	p. 471
Custom Controls	p. 472
Creating an ASP.NET User Control	p. 473
User Control Properties	p. 475
A Custom Button User Control	p. 476
Creating a Thumbnail Control	p. 481
Making a Thumbnail	p. 481
Creating a Custom Control	p. 484
Creating a Thumbnail Picture Gallery	p. 486
Design-Time Support	p. 488
Creating a Toolbox Icon	p. 488
Other Design-Time Features	p. 489
Summary	p. 490
Web Services and GDI+	p. 493
What are Web Services?	p. 493
How can GDI+ be used with a Web Service?	p. 494
A Simple Web Service	p. 495
The Hello World Web Service	p. 495
Returning an Image URL	p. 498
The Image URL Web Service	p. 501
Returning Image Data	p. 503
Summary	p. 507
Index	p. 509
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