Eval¶

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.

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 ) )

Watch¶

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

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

Example: CANDis¶

• Main screen
  • Button for Light, Sensemux-Diagram, Activity (TV, Musik, Solder, Off)
  • Header with Clock
• Light-Screen
  • Power-Widget
  • Ok-Button
• Clock-Screen (Screen saver)
  • Clock, Date, Temperature, Quick-Access-Buttons