Methods' Summary |
getData |
Query the raw data of this bitmap.
Query the raw data of this bitmap, in the format as defined by
getMemoryLayout(). With the given rectangle, a subset of the
whole bitmap can be queried. If the internal data format's
pixel are not integer multiples of bytes (i.e. if one pixel
occupies less than a byte), the leftover content of the bytes
at the right of each scanline is filled with zero. When
querying subsets of the bitmap, the same scanline padding
takes place as when the whole bitmap is requested.
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setData |
Set raw data of a bitmap.
Set raw data of a bitmap, in the format as defined by
getMemoryLayout(). With the given rectangle, a subset of the
bitmap can be changed. If the internal data format's pixel are
not integer multiples of bytes (i.e. if one pixel occupies
less than a byte), the leftover content of the bytes at the
right of each scanline is ignored and left unchanged in the
bitmap. When setting subsets of the bitmap, the same scanline
padding takes place as when the whole bitmap is changed. |
setPixel |
Set a single pixel of the bitmap with the given color
value.
If the internal data format's pixel are not integer multiples
of bytes (i.e. if one pixel occupies less than a byte), the
color value is expected in the least significant bits of the
single byte given as the color. |
getPixel |
Get a single pixel of the bitmap, returning its color
value.
If the internal data format's pixel are not integer multiples
of bytes (i.e. if one pixel occupies less than a byte), the
color value is returned in the least significant bits of the
single byte returned as the color.
|
getPalette |
Query the associated palette for this bitmap.
Returns empty interface or interface with empty palette for
non-paletted bitmaps.
|
getMemoryLayout |
Query the memory layout for this bitmap
|
Methods' Details |
getData
- Description
- Query the raw data of this bitmap.
Query the raw data of this bitmap, in the format as defined by
getMemoryLayout(). With the given rectangle, a subset of the
whole bitmap can be queried. If the internal data format's
pixel are not integer multiples of bytes (i.e. if one pixel
occupies less than a byte), the leftover content of the bytes
at the right of each scanline is filled with zero. When
querying subsets of the bitmap, the same scanline padding
takes place as when the whole bitmap is requested.
- Throws
- VolatileContentDestroyedException
if the bitmap is volatile, and the content has been destroyed by the system.
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setData
- Description
- Set raw data of a bitmap.
Set raw data of a bitmap, in the format as defined by
getMemoryLayout(). With the given rectangle, a subset of the
bitmap can be changed. If the internal data format's pixel are
not integer multiples of bytes (i.e. if one pixel occupies
less than a byte), the leftover content of the bytes at the
right of each scanline is ignored and left unchanged in the
bitmap. When setting subsets of the bitmap, the same scanline
padding takes place as when the whole bitmap is changed.
|
|
setPixel
- Description
- Set a single pixel of the bitmap with the given color
value.
If the internal data format's pixel are not integer multiples
of bytes (i.e. if one pixel occupies less than a byte), the
color value is expected in the least significant bits of the
single byte given as the color.
When setting data on volatile bitmaps, always call isValid()
before, and retrieve a new memory layout via
getMemoryLayout(). At least under Windows, the memory layout
can change for the same bitmap, if the user e.g. switches the
screen resolution. Thus, this method will throw an
IllegalArgumentException, if the memory layout changed between
a call to getMemoryLayout() and setData().
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getPixel
- Description
- Get a single pixel of the bitmap, returning its color
value.
If the internal data format's pixel are not integer multiples
of bytes (i.e. if one pixel occupies less than a byte), the
color value is returned in the least significant bits of the
single byte returned as the color.
- Throws
- VolatileContentDestroyedException
if the bitmap is volatile, and the content has been destroyed by the system.
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getPalette
- Description
- Query the associated palette for this bitmap.
Returns empty interface or interface with empty palette for
non-paletted bitmaps.
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getMemoryLayout
- Description
- Query the memory layout for this bitmap
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Copyright © 2003 Sun Microsystems, Inc.