Create a preview for the given slide that has the same aspect ratio
as the page and is as large as possible but not larger than the
specified size.
The reason for not using the given size directly as preview size and
thus possibly changing the aspect ratio is that
a) a different aspect ratio is not used often, and
b) leaving the adaption of the actual preview size (according to the
aspect ratio of the slide) to the slide renderer is more convenient
to the caller than having to this himself.
Exactly the same functionality as createPreview(),
only a different return type:
com::sun::star::rendering::XBitmap instead
of com::sun::star::awt::XBitmap.
Create a preview for the given slide that has the same aspect ratio
as the page and is as large as possible but not larger than the
specified size.
The reason for not using the given size directly as preview size and
thus possibly changing the aspect ratio is that
a) a different aspect ratio is not used often, and
b) leaving the adaption of the actual preview size (according to the
aspect ratio of the slide) to the slide renderer is more convenient
to the caller than having to this himself.
Parameter xSlide
The slide for which a preview will be created.
Parameter aMaximumPreviewPixelSize
The maximum size of the preview measured in pixels. When the
aspect ratios of this size and of the given slide differ, then
resulting preview will either have the width or the height of
this size.
Parameter nSuperSampleFactor
When larger than the default 1 then internally a larger preview
is created which, before it is returned, is scaled down to the
requested size. The intermediate size is nSuperSampleFactor
times the original size. Values larger than 1 result in higher
memory consumption and longer runtime.
This value is an attempt to provide some antialiasing and so to
provide more readable slide previews. May become obsolete in
the future when true antialiasing suppport will be integrated.
Exactly the same functionality as createPreview(),
only a different return type:
com::sun::star::rendering::XBitmap instead
of com::sun::star::awt::XBitmap.
Parameter xCanvas
This canvas is used create a canvas specific bitmap.
