An annotated tour

The DejaVU Online Documents may be employed for browsing and presentation. Frames are used to organize the material and provide a context for both browsing and presentation. generally, three frame windows are visible. The middle frame or slides frame, in which the material or slides are shown, a (yellow) left frame and (yellow) right frame, that may be used for advancing to the next slide or document.

As an alternative to trial-and-error, a brief annotated tour is provided to give an idea how to approach navigation and presentation in the DejaVU Online Documents. (As a note, the name DejaVU stems from a project that was concerned with the construction of a framework for hypermedia applications.)

Select an icon

Typically, a chapter page is shown when you access a particular section of the DejaVU Online Documents. You may then either click on the moving icon on the right, or click on the image in the lower left of the middle frame, to reach the contents page of that section.

slide: Select an icon

When you click on either the icon or image, the contents page will be displayed in the middle or slides frame.

Select an entry in the Contents

The contents page may itself refer to other sections of the DejaVU Online Documents, such as for example the online version of Principles of Object-Oriented Software Development.

slide: Select an entry

Selecting such a section will generally result in a change of context (as you may observe by looking at the URL displayed in the location bar of your browser) and the display of the frames for, in this case, Principles of Object-Oriented Software Development.

Select an icon (again)

To access the contents of Principles of Object-Oriented Software Development, click on either the icon or image, and you will see the list of parts that the book contains.

slide: Select an icon (again)

Selecting either the image or icon will display the contents page, indeed.

Select a chapter from the navigation bar

To navigate in the online version of Principles of Object-Oriented Software Development you may either select an entry in the contents list, or, alternatively, select a chapter from the navigation bar at the top of the page.

slide: Select a chapter (from the bar)

Selecting a chapter in the navigation bar results in displaying the first page of that particular chapter. Note that there is no context change. The URL displayed by your browser does not change!

Go to the (chapter) Contents page

From the first page of a chapter in Principles of Object-Oriented Software Development you can access the contents page for that chapter by clicking on (the image of) the musical fragment.

slide: Go to the (chapter) Contents page

Once you have reached the contents page for a particular chapter, you can either switch context (which will be shown later), select a particular section of the chapter, or enter Presentation Mode.

Enter Presentation Mode by selecting Slides

Presentation Mode is entered by selecting Slides in the contents page. In Presentation Mode, selected parts from the text (slides) can be shown in a format (more) suitable for presentation.

slide: Enter Presentation Mode

When Presentation Mode is entered a change of context occurs, which is made visible by showing the icon in the left frame. From this icon you can access the contents page directly.

Go to the next slide (in Presentation Mode)

In Presentation Mode, you may present a series of slides. Clicking on the right frame, you may advance to the next slide. Clicking on the arrows results in going to the previous or next slide.

slide: Go to the next slide

Actually, the order of slides is determined by a Javascript file @talk.js, which may be modified if the need arises.

Start up a (Tcl) drawing canvas

If you have a Tcl plugin installed, you may start up a small drawing canvas.

slide: Start up a (Tcl) drawing canvas

However, a drawing canvas is useful only when you have a pen as an input device.

Go to the Contents page from the upper left icon

Being in Presentation Mode, you may decide to explore different sections of the document. For example, by clicking on the icon in the left frame, you may accees the contents page.

slide: Go to the Contents page

Note that there is no context change. After exploring, you may proceed with the next slide, simply by clicking on the right arrow, provided no context-change has occurred.

Select a section

From the contents page of a chapter you may select a (chapter) section, simply by clicking on an entry in the list.

slide: Select a section

Depending on size of the section, a (chapter) section may be subdivided in subsections, that can be accessed from the top of the section page.

Enter Presentation Mode from section heading

You may now (re)enter Presentation Mode by clicking on the section title. Beware, by doing so you switch context. The original context is then lost.

slide: Enter Presentation Mode

Note that one of the previous examples showed how you may access Presentation Mode fro an entir chapter. Providing Presentation Mode for each individual (sub)section allows you a finer granularity for selecting the material you wih to present.

Back to the Contents page

Again, selecting the small icon in the left frame brings you back to the contents page.

slide: Back to the Contents page

From the contents page, you can enter Presentation Mode for the entire chapter, or select a section.