MWsGc Class Reference
| class MWsGc : public MWsObjectProvider |
A destination for a drawing occasion of a CWsGraphicDrawer Used to register invalidation schedules for animation
Member Functions Documentation
BitGc()
The BITGDI graphics context to draw to
Client()
The Client requesting this drawing occasion
ClippingRegion()
| const TRegion & | ClippingRegion | ( | ) | [pure virtual] |
The clipping region currently being used
GcOrigin()
|
TPoint
| GcOrigin | ( | ) | const [pure virtual] |
The origin of the GC relative to the screen's origin
Now()
| const TTime & | Now | ( | ) | const [pure virtual] |
The time for the current redraw
PopBitGcSettings()
| void | PopBitGcSettings | ( | ) | [pure virtual] |
Restores the last GC state that was saved.
PushBitGcSettings()
|
TInt
| PushBitGcSettings | ( | ) | [pure virtual] |
Saves the state of the GC to an internal buffer. Several GC states can be saved in a FILO. Do not restore a GC (using PopBitGcSettings()) that wasn't properly saved!
ScheduleAnimation(const TRect &, const TTimeIntervalMicroSeconds &)
Schedule an animation of a rectangle in the future. Scheduled animation doesn't work in low memory conditions or if aRect values fall outside the window area of this animation.
Parameters
| const TRect & aRect | the rectangle to animate, in the GC's coordinates |
| const TTimeIntervalMicroSeconds & aFromNow | the time in microseconds from Now() that the rectangle will be invalid |
ScheduleAnimation(const TRect &, const TTimeIntervalMicroSeconds &, const TTimeIntervalMicroSeconds &, const TTimeIntervalMicroSeconds &)
Schedule an animation of a rectangle in the future
Parameters
| const TRect & aRect | the rectangle to animate, in the GC's coordinates |
| const TTimeIntervalMicroSeconds & aFromNow | the time in microseconds from Now() that the rectangle will be invalid |
| const TTimeIntervalMicroSeconds & aFreq | microseconds between frames that this rectangle will probably be invalid in the future (0 means no such hint is known) |
| const TTimeIntervalMicroSeconds & aStop | the duration in microseconds from Now() that the aFreq hint will be valid for (0 means indefinitely) |
Screen()
The screen that is currently being drawn to
SetGcOrigin(const TPoint &)
| void | SetGcOrigin | ( | const TPoint & | aOrigin | ) | [pure virtual] |
Parameters
| const TPoint & aOrigin | The new origin of the gc |
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