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h1. Eval

h2. Widgets

There is a ODesktop that holds a list of OScreens (or only the curent).

There is a OScreen that holds a list of OWidgets.

When the touch is pressed, the corresponding button can be determined.

An signal can be emmited.

An press-event can be queued, An release-event can be queued. An click-event can be queued if current button matches original pressed button.

* OButton::draw(): completely draws the widget

* OButton::update(): only draw status-relevant items, e.g. pressed, released, time changed...

All screens can be prepared at start.

A Screen can be active or inactive.

h2. Touch

There is an touch class that helps converting raw values to X-Y-coordinates

XCAL_25; XCAL_215;

X=( 25 + ( ( RAW-XCAL_25 ) / ( ( XCAL_215 - XCAL_25 ) / ( 215 - 25 ) )  )

Sample:

XCAL_25=100

XCAL_215=2000

( 2000 - 100 ) / 190 = 10 RawPerPixel;

100: 

X = 25 +  ( ( 100-100) / 10 ) = 100

2000:

X = 25 + ( 1900 / 10 ) = 215

Sample 2:

XCAL_25=78

XCAL_215=589

rawPerPixel = (589 - 78) / 190 = approx. 2,6894737

rawPerHektoPixel = ((589 - 78) * 100) / 190 = approx. 268,94737

X = 25 + (  ( ( 589 - 78 ) * 100 ) / 269 )  = approx. 214,96283

To avoid usage of floating point the rawPerPixel is used as rawPerHektoPixel

X=( 25 + ( ( ( RAW-XCAL_25 ) * Hekto ) / ( ( ( XCAL_215 - XCAL_25 ) * Hekto ) / ( 215 - 25 ) )  )

rawPerHektoPixel = ( ( XCAL_215 - XCAL_25 ) * Hekto ) / ( 215 - 25 )

X=( 25 + ( ( ( RAW-XCAL_25 ) * Hekto ) / rawPerHektoPixel )  )

h2. Watch

* the OWatch class shows an clock with specific style, analog or digital

h2. Example: Minutnik

* Main screen; CWatch, Add-Button

* Add-Screen

** Espresso, Weisswurst, Weiches Ei, Hartes Ei, Nudeln, Pizza, Waschmaschine, Cancel; Height 32

* Alarm Screen

* Logo, Splash screen at boot time and stand-by-screen

* Release v2.0.0: Mode-Screen: Minutnik, Clock, StopWatch

h2. Example: CANDis

* Main screen

** Button for Light, Sensemux-Diagram, Activity (TV, Musik, Solder, Off), Miniminutnik

** Header with Clock

* Light-Screen

** Power-Widget

** Ok-Button

* Clock-Screen (Screen saver)

** Clock, Date, Temperature, Quick-Access-Buttons