The purpose of this project is for the easy building of the graphic user interface for apps on Android using RFO-Basic. HEW is put in the Public Domain.
It is the hope that by relieving the programmer of the complexity of the GUI, then he/she can concentrate more on the actual core of the application.
The framework consists of the following components;
Components :
|
Main |
|
Widgets |
Theme Manager |
Group
Manager (to do) |
Other interfaces |
|
|
Init screen init. globals vars. Event Loop touch detection. ISR Interrupt code |
Buttons Bottom Menu Text, TextBox, Grid Select Pick List, Pick Form List Mark, List Move Text Box Key Input Numeric KeyPad Ask_YN, Msg_OK Console TxtScroll Progress Bar Timer Chart |
themes.bas themes.ini |
Positions widgets
in a group. |
FormFill An HTML Form Filler (gets input from user). PickForm is graphic version of FormFill. |
|
| Source files : |
themes.bas
event.bas
init.bas
isr.bas ask_yn.bas botmenu.bas btimer.bas button.bas chart.bas console.bas keyinp.bas listmark.bas listmove.bas msg_ok.bas numpad pickform.bas picklist.bas progress.bas text.bas textbox.bas txtscroll.bas |
FormFill.zip themes.ini |
| Reference Manual: | html |
|
| Currently
compatible with
BASIC v01.91 |
Main
Themes: Theme mananger. Sets colors, changes themes.
Event Loop : Main event loop (waits for events)
Init : Screen initialisation, set global variables.
ISR : Interrupt handling code. (interrupt service routines).
Widgets
The term 'widget' here is not the same as an android widget. A hew widget is a graphical u.i control ( e.g a clickable button). A hew widget will try to re-use graphic objects whenever possible, this is because rfo-basic objects cannot be deleted, so some memory will be saved especially if the widget is used frequently.
Most widgets have a 'make' function (constructor) and a common callback function so it can respond when called by the main loop or by other functions.
All widgets have a 'bundle' of data that saves the current state of the widget. This bundle is returned by the constructor.
Some callbacks will have a 'command' parameter if it needs to handle more than one command.
If using the themes module, gr.color calls must be manually replaced with theme_color().
Theme Manager
All widgets uses themes.bas to get colors. This is done by calling theme_color() instead of gr.color().
The theme manager can also change themes and colors for formfill.css.
(more here).
Group Manager
The group manager's task is to relieve the programmer of positioning widgets. Each widget can be assigned to a group (a row), the group manager evenly distributes each widget in a group and each group on the screen, If the screen dimensions change, the group manager re-positions everything. Widgets are ordered in a group according to when they are assigned.
Other Interfaces
At the moment Formfill (an html form filler) supports HEW themes. It does this by wrapping it's colors with CSS comments.
The Theme manager can then replace these colors by overwriting the CSS file with new colors.
Getting Started
Write your first app with HEW !. click here.
Pics & Demos examples
Bottom popup menu 6 pane popup menu. btm_demo.zip |
Text Scroll Pane txtscroll_demo.zip apk |
Modal Dialogs dialog_demo.zip |
Timer btimer_demo.zip |
Big Demo big demo zip apk |
Terminal Demo terminal_demo.zip apk |
PickList pldemo.zip apk Fully automated version of pickform for quick lists. |
|
PickForm pfdemo.zip apk Windowed or full screen list or form. |
PopUp Numeric
Keypad numpad_demo.zip |
Examples of HEW in use ;
RadarGhost
Ready RSS
Quick I-Ching
qConvert
The full change.log.txt is here
( What's Old? )
Forum
The rfo-basic forum is hosted on freeforums.org.
Acknowledgments
Paul Laughton - RFO Basic (named after "The Dr. Richard Feynman Observatory")
