home *** CD-ROM | disk | FTP | other *** search
- TABLE OF CONTENTS
-
- animation.datatype/animation.datatype
- animation.datatype/animation.datatype animation.datatype/animation.datatype
-
- NAME
- animation.datatype -- root data type for animations.
-
- FUNCTION
- The animation.datatype is the super-class for any animation related
- classes.
-
- This class is responsible for creating the controls, scaling,
- remapping and synchronization.
-
- METHODS
- OM_NEW -- Create a new animation object.
-
- OM_GET -- Obtain the value of an attribute.
-
- OM_SET -- Set the values of multiple attributes.
-
- OM_UPDATE -- Update the values of multiple attributes.
-
- OM_DISPOSE -- Dispose of a animation object.
-
- GM_LAYOUT -- Layout the object and notify the application of the
- title and size.
-
- GM_HITTEST -- Determine if the object has been hit with the
- mouse.
-
- GM_GOACTIVE -- Tell the object to go active. On SELECTDOWN, the
- animation will start playing.
-
- GM_HANDLEINPUT -- Handle input. Currently input (other than
- SELECTDOWN) doesn't affect the animation.
-
- GM_RENDER -- Cause the current frame to render.
-
- DTM_FRAMEBOX -- Obtain the display environment that the animation
- requires.
-
- DTM_TRIGGER -- Cause an event to occur. Currently the only
- trigger event is STM_PLAY, which will cause the animation to
- start playing.
-
- DTM_COPY -- Copy the current frame to the clipboard as an IFF ILBM.
-
- DTM_WRITE -- Write the current frame to a file as an IFF ILBM.
-
- DTM_PRINT -- Print the current frame.
-
- ADTM_LOADFRAME -- Load a frame of the animation.
-
- ADTM_UNLOADFRAME -- Deallocate any memory allocated by
- ADTM_LOADFRAME.
-
- ADTM_START -- Start the animation. This MUST be passed to the
- super-class AFTER the sub-class has started.
-
- ADTM_PAUSE -- Pause the animation. This MUST be passed to the
- super-class BEFORE the sub-class pauses.
-
- ADTM_STOP -- Stop the animation. This MUST be passed to the
- super-class BEFORE the sub-class stops.
-
- ADTM_LOCATE -- Used to locate a frame of the animation.
-
- ADTM_LOADNEWFORMATFRAME -- Load a new format frame of the animation,
- for more information, see <datatypes/animationclass.h>. (V44)
-
- ADTM_UNLOADNEWFORMATFRAME -- Deallocate any memory allocated by
- ADTM_LOADNEWFORMATFRAME. (V44)
-
- TAGS
- DTA_ControlPanel (BOOL) -- Determine whether the control
- panel is shown. Defaults to TRUE.
-
- Applicability is (I).
-
- DTA_Immediate (BOOL) -- Indicate whether the animation
- should immediately begin playing. Defaults to
- FALSE.
-
- Applicability is (I).
-
- DTA_Repeat (BOOL) -- Indicate whether the animation
- should loop. (V44)
-
- Default for this tag is FALSE. Applicability is (IS).
-
- ADTA_Remap (BOOL) -- Indicate whether the animation should be
- remapped or not.
-
- Applicability is (I).
-
- ADTA_ModeID (ULONG) -- Set and get the graphic mode id of the
- picture.
-
- Applicability is (ISG).
-
- ADTA_Width (ULONG) -- Width of a frame in pixels.
-
- Applicability is (IG).
-
- ADTA_Height (ULONG) -- Height of a frame in pixels.
-
- Applicability is (IG).
-
- ADTA_Depth (ULONG) -- Depth of the frame.
-
- Applicability is (IG).
-
- ADTA_Frames (ULONG) -- Number of frames in animation.
-
- Applicability is (ISG).
-
- ADTA_KeyFrame (struct BitMap *) -- Pointer to the key
- frame.
-
- Applicability is (ISG).
-
- ADTA_FramesPerSecond (ULONG) -- Number of frames per
- second to play.
-
- ADTA_NumColors (WORD) -- Number of colors used by the frame.
-
- Applicability is (ISG).
-
- ADTA_ColorRegisters (struct ColorRegister *) -- Color table; its
- contents should match the colours in the ADTA_CRegs table.
-
- Applicability is (G).
-
- ADTA_CRegs (ULONG *) -- Color table to use with SetRGB32CM().
-
- Applicability is (G).
-
- ADTA_GRegs (ULONG *) -- Color table; this table is initialized
- during the layout process and will contain the colours the
- picture will use after remapping. If no remapping takes
- place, these colours will match those in the ADTA_CRegs table.
-
- ADTA_ColorTable (UBYTE *) -- Shared pen table; this table is
- initialized during the layout process while the frames
- are being remapped.
-
- Applicability is (G).
-
- ADTA_ColorTable2 (UBYTE *) -- Shared pen table; in most places
- this table will be identical to the ADTA_ColorTable table.
- Some of the colours in this table might match the original
- colour palette a little better than the colours picked for
- the other table. The animation.datatype uses the two tables
- during remapping, alternating for each pixel.
-
- Applicability is (G).
-
- ADTA_Allocated (ULONG) -- OBSOLETE; DO NOT USE.
-
- Applicability is (G).
-
- ADTA_NumAlloc (UWORD) -- Number of colors allocated by the frame.
- In this context `allocated' refers to colours allocated via
- graphics.library/ObtainBestPenA.
-
- Applicability is (G).
-
- ADTA_BitMapHeader (struct BitMapHeader *) -- Set and get the
- base information for the animation. BitMapHeader is defined in
- <datatypes/pictureclass.h>
-
- Applicability is (G).
-
- ADTA_Sample (BYTE *) -- Pointer to sample data.
-
- NOTE: this tag was only (IS) in V40; this has been fixed
- in V44.
-
- Applicability is (ISG).
-
- ADTA_SampleLength (ULONG) -- Length of sample data.
-
- Applicability is (ISG).
-
- ADTA_Period (ULONG) -- Period to play back sample at.
-
- Applicability is (ISG).
-
- ADTA_Volume (ULONG) -- Volume to play back sample at (0..64).
-
- Applicability is (ISG).
-
- OBP_Precision (ULONG) -- Precision to use when obtaining colors.
- See the PRECISION_[..] defines in <graphics/view.h>.
-
- Applicability is (I). Defaults to PRECISION_IMAGE. (V44)
-
- ADTA_LeftSample (BYTE *) -- Pointer to left channel sample
- data. (V44)
-
- Applicability is (ISG).
-
- ADTA_RightSample (BYTE *) -- Pointer to right channel sample
- data. (V44)
-
- Applicability is (ISG).
-
- ADTA_SamplesPerSec (ULONG) -- Number of samples per second to play;
- if this is > 0, it takes precendence over ADTA_Period.
-
- Applicability is (ISG).
-
- ADTA_PreloadFrameCount (ULONG) -- Number of frames to preload. (V44)
- Frames are preloaded when starting animation playback. The
- loader will attempt to keep at least this number of frames
- available for the display process. Note that when changing this
- attribute the change does not take effect immediately.
-
- Default for this tag is 10. Applicability is (ISG).
-
- NOTES
- The ADTM_LOADNEWFORMATFRAME and ADTM_UNLOADNEWFORMATFRAME methods
- operate on struct adtNewFormatFrame format messages. The
- adtNewFormatFrame message is an extension of the adtFrame message
- with additional fields, such as required for stereo sound playback.
- By default, animation.datatype will load and unload frames allocated
- by its subclasses using the compatible ADTM_LOADFRAME and
- ADTM_UNLOADFRAME methods. If your subclass needs to use the extended
- adtNewFormatFrame format messages, it must say so by providing a
- list of supported methods for animation.datatype to query through
- the OM_GET/DTA_Methods tag. If both ADTM_LOADNEWFORMATFRAME and
- ADTM_UNLOADNEWFORMATFRAME are among the methods supported by your
- subclass, you will receive adtNewFormatFrame format messages instead
- of the compatible adtFrame messages.
-
- Please note that applications such as MultiView will query the
- methods supported by your class. Make sure that if you choose to
- implement support for the OM_GET/DTA_Methods tag the methods you
- return should also include the methods supported by your superclass.
- Otherwise, the user will be unable to use functions such as "Copy"
- or "Print".
-
- Since the adtNewFormatFrame message format may be enhanced in future
- releases of animation.datatype, your subclass may access only
- structure members that are known to exist in the message. To find
- out which members are available, check the
- adtNewFormatFrame->alf_Size member; it contains the total length of
- the data structure (in bytes). Remember which message length you
- require, then act accordingly. Please keep in mind that the
- structure member adtNewFormatFrame->alf_Size does not exist in the
- compatible adtFrame message data structure.
-
-