Fundamental Concepts

Table of Contents

14. Program Structure

1. The canvas tag

2. The <include> tag for compiled-in libraries

3. The <library> tag

4. The <import> tag for runtime includes

5. Debugging

6. Resources, Fonts, and Datasources

7. Accessibility

15. Getting More from Components

1. Customizing components

2. Data-backed versus instance components

3. Building your own components

16. Layout and Design

1. Declarative positioning of views using layouts

2. Horizontal and Vertical Boxes

3. Variations on Layout

4. Design considerations in LZX programs

5. Scripting and Layouts

6. Animating layout

7. Writing Custom Layouts

17. Media Resources

1. Overview

2. Supported media types

3. Views and resources

4. Multi-frame resources

5. Resource loading

6. Using the <image> tag

18. Text Views

1. Summary of properties

2. The <text> View

3. The <inputtext> View

19. Rich Text

1. Overview

2. Directly including rich text markup

3. Procedurally modifying text

20. Fonts

1. What is a font?

2. OpenLaszlo "pseudo-pixel" fonts

3. Syntax

4. Using fonts

5. Font Metrics

6. Runtime Font APIs

7. Performance considerations

21. Animation

1. Introduction

2. Absolute vs. relative animation

3. Using the from attribute

4. Using the motion attribute

5. Tags vs Script

6. Using the indirect attribute

7. Animator Groups

8. Animating Layout

9. Everything Animates