:: com :: sun :: star :: rendering ::
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| unpublished |
interface XGraphicDevice |
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- Base Interfaces
XGraphicDevice
┗ ::com::sun::star::uno::XInterface
| ::com::sun::star::uno::XInterface |
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- Description
- This interface provides access to a graphic device, such as a
printer, or a screen device. Every canvas (
- See also
- XCanvas)
has
exactly one associated graphic device, into which its output is
rendered.
For a typical windowing system, the graphic device is equivalent
to a distinct OS window, with it's own clipped output area,
fullscreen and double-buffering attributes. That is, even if one
can have multiple canvases per system window, they all share the
same graphic device and thus e.g. fullscreen state. If the OS
restrictions are in such a way that fullscreen or double-buffering
is screen-exclusive, i.e. that per screen, only one object can
have this state, it might even be that all windows on the screen
share a common graphic device.
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| Methods' Summary |
| getBufferController |
Query the controller for multi buffering functionality on this
graphic device.
If there is no such functionality available, the NULL
reference is returned.
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| getDeviceColorSpace |
Query the color space interface for this graphic device.
This is to be used when interpreting or setting device color
values.
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| getPhysicalResolution |
Query the physical resolution of the device in pixel per
millimeter.
A special floating point value of +infinity here indicates
'unknown', i.e. at the time of rendering undetermined or
possibly infinite resolution along the corresponding
direction.
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| getPhysicalSize |
Query the physical dimensions of the device in millimeter.
A special floating point value of +infinity here indicates
'unknown', i.e. at the time of rendering undetermined or
possibly infinite resolution along the corresponding
direction.
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| createCompatibleLinePolyPolygon |
Create a line poly-polygon which can internally use
device-optimized representations already.
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| createCompatibleBezierPolyPolygon |
Create a bezier poly-polygon which can internally use
device-optimized representations already.
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| createCompatibleBitmap |
Create a bitmap whose memory layout and sample model is
compatible to the graphic device.
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| createVolatileBitmap |
Create a volatile bitmap that is usable with this graphic device.
A volatile bitmap's difference in comparison to a plain bitmap
(e.g. generated via createCompatibleBitmap()) is the fact that
its content might vanish at any point in time (making any
operation with them produce a
VolatileContentDestroyedException ). The benefit,
on the other hand, is that they might be easy to
hardware-accelerate on certain platforms, without the need to
keep a safety copy of the content internally.
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| createCompatibleAlphaBitmap |
Create a bitmap with alpha channel whose memory layout and
sample model is compatible to the graphic device.
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| createVolatileAlphaBitmap |
Create a volatile bitmap with alpha channel that is usable
with this graphic device.
A volatile bitmap's difference in comparison to a plain bitmap
(e.g. generated via createCompatibleBitmap()) is the fact that
its content might vanish at any point in time (making any
operation with them produce a
VolatileContentDestroyedException ). The benefit,
on the other hand, is that they might be easy to
hardware-accelerate on certain platforms, without the need to
keep a safety copy of the content internally.
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| getParametricPolyPolygonFactory |
Get a reference to this device's parametric polygon factory.
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| hasFullScreenMode |
Tells whether this graphic device has a full screen mode,
i.e. whether a window can cover the whole screen exclusively.
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| enterFullScreenMode |
Enter or leave the fullscreen mode, if possible. The return
value denotes the success of the operation.
@attention depending on the underlying operating system,
fullscreen mode can be left without a enterFullScreenMode(
false ) call.
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| Methods' Details |
getBufferController
- Description
- Query the controller for multi buffering functionality on this
graphic device.
If there is no such functionality available, the NULL
reference is returned.
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getDeviceColorSpace
- Description
- Query the color space interface for this graphic device.
This is to be used when interpreting or setting device color
values.
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getPhysicalResolution
| ::com::sun::star::geometry::RealSize2D |
| getPhysicalResolution(); |
- Description
- Query the physical resolution of the device in pixel per
millimeter.
A special floating point value of +infinity here indicates
'unknown', i.e. at the time of rendering undetermined or
possibly infinite resolution along the corresponding
direction.
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getPhysicalSize
| ::com::sun::star::geometry::RealSize2D |
| getPhysicalSize(); |
- Description
- Query the physical dimensions of the device in millimeter.
A special floating point value of +infinity here indicates
'unknown', i.e. at the time of rendering undetermined or
possibly infinite resolution along the corresponding
direction.
- See also
- XBitmap::getSize()
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createCompatibleLinePolyPolygon
| XLinePolyPolygon2D |
| createCompatibleLinePolyPolygon( |
[in] sequence< sequence< ::com::sun::star::geometry::RealPoint2D > > |
points ); |
- Description
- Create a line poly-polygon which can internally use
device-optimized representations already.
- Parameter points
- The points of the poly-polygon, in a separate array for every polygon.
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createCompatibleBezierPolyPolygon
| XBezierPolyPolygon2D |
| createCompatibleBezierPolyPolygon( |
[in] sequence< sequence< ::com::sun::star::geometry::RealBezierSegment2D > > |
points ); |
- Description
- Create a bezier poly-polygon which can internally use
device-optimized representations already.
- Parameter points
- The points of the poly-polygon, in a separate array for every polygon.
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createCompatibleBitmap
| XBitmap |
| createCompatibleBitmap( |
[in] ::com::sun::star::geometry::IntegerSize2D |
size ) |
| raises( |
::com::sun::star::lang::IllegalArgumentException ); |
- Description
- Create a bitmap whose memory layout and sample model is
compatible to the graphic device.
- Parameter size
- Size of the requested bitmap in pixel. Both components of the
size must be greater than 0
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createVolatileBitmap
| XVolatileBitmap |
| createVolatileBitmap( |
[in] ::com::sun::star::geometry::IntegerSize2D |
size ) |
| raises( |
::com::sun::star::lang::IllegalArgumentException ); |
- Description
- Create a volatile bitmap that is usable with this graphic device.
A volatile bitmap's difference in comparison to a plain bitmap
(e.g. generated via createCompatibleBitmap()) is the fact that
its content might vanish at any point in time (making any
operation with them produce a
VolatileContentDestroyedException ). The benefit,
on the other hand, is that they might be easy to
hardware-accelerate on certain platforms, without the need to
keep a safety copy of the content internally.
- Parameter size
- Size of the requested bitmap in pixel. Both components of the
size must be greater than 0
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createCompatibleAlphaBitmap
| XBitmap |
| createCompatibleAlphaBitmap( |
[in] ::com::sun::star::geometry::IntegerSize2D |
size ) |
| raises( |
::com::sun::star::lang::IllegalArgumentException ); |
- Description
- Create a bitmap with alpha channel whose memory layout and
sample model is compatible to the graphic device.
- Parameter size
- Size of the requested bitmap in pixel. Both components of the
size must be greater than 0
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createVolatileAlphaBitmap
| XVolatileBitmap |
| createVolatileAlphaBitmap( |
[in] ::com::sun::star::geometry::IntegerSize2D |
size ) |
| raises( |
::com::sun::star::lang::IllegalArgumentException ); |
- Description
- Create a volatile bitmap with alpha channel that is usable
with this graphic device.
A volatile bitmap's difference in comparison to a plain bitmap
(e.g. generated via createCompatibleBitmap()) is the fact that
its content might vanish at any point in time (making any
operation with them produce a
VolatileContentDestroyedException ). The benefit,
on the other hand, is that they might be easy to
hardware-accelerate on certain platforms, without the need to
keep a safety copy of the content internally.
- Parameter size
- Size of the requested bitmap in pixel. Both components of the
size must be greater than 0
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getParametricPolyPolygonFactory
- Description
- Get a reference to this device's parametric polygon factory.
- Returns
- a reference to this device's parametric polygon
factory. Although it is possible to use parametric polygons on
all canvases, regardless of the associated graphic device,
this is not advisable: each canvas implementation is free to
internally generate optimized parametric polygons, which can
be used more directly for e.g. texturing operations.
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hasFullScreenMode
| boolean |
| hasFullScreenMode(); |
- Description
- Tells whether this graphic device has a full screen mode,
i.e. whether a window can cover the whole screen exclusively.
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enterFullScreenMode
| boolean |
| enterFullScreenMode( |
[in] boolean |
bEnter ); |
- Description
- Enter or leave the fullscreen mode, if possible. The return
value denotes the success of the operation.
@attention depending on the underlying operating system,
fullscreen mode can be left without a enterFullScreenMode(
false ) call.
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Copyright © 2003 Sun Microsystems, Inc.