mirror of
https://github.com/brl/mutter.git
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341 lines
4.4 KiB
Plaintext
341 lines
4.4 KiB
Plaintext
<!-- ##### SECTION Title ##### -->
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ClutterAlpha
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<!-- ##### SECTION Short_Description ##### -->
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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#ClutterBehaviour, #ClutterTimeline
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</para>
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<!-- ##### SECTION Stability_Level ##### -->
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<!-- ##### STRUCT ClutterAlpha ##### -->
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<para>
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The #ClutterAlpha structure contains only private data and should not be
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accessed directly.
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</para>
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<!-- ##### ARG ClutterAlpha:alpha ##### -->
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<para>
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</para>
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<!-- ##### ARG ClutterAlpha:timeline ##### -->
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<para>
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</para>
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<!-- ##### STRUCT ClutterAlphaClass ##### -->
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<para>
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</para>
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@parent_class:
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@_clutter_alpha_1:
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@_clutter_alpha_2:
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@_clutter_alpha_3:
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@_clutter_alpha_4:
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@_clutter_alpha_5:
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<!-- ##### FUNCTION clutter_alpha_new ##### -->
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<para>
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</para>
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@Returns:
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<!-- ##### FUNCTION clutter_alpha_new_full ##### -->
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<para>
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</para>
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@timeline:
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@func:
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@data:
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@destroy:
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@Returns:
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<!-- ##### FUNCTION clutter_alpha_get_alpha ##### -->
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<para>
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</para>
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@alpha:
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@Returns:
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<!-- ##### MACRO CLUTTER_ALPHA_MAX_ALPHA ##### -->
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<para>
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Maximum value of the alpha function. You should use this value to
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scale the computed alpha value.
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</para>
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<!-- ##### USER_FUNCTION ClutterAlphaFunc ##### -->
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<para>
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The alpha function is a function of time. You should provide a function
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transforming the current position in the timeline.
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</para>
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@alpha: a #ClutterAlpha
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@user_data: optional user defined data passed to the function
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@Returns: a value between 0 and CLUTTER_ALPHA_MAX_ALPHA
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<!-- ##### FUNCTION clutter_alpha_set_func ##### -->
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<para>
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</para>
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@alpha:
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@func:
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@data:
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@destroy:
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<!-- ##### FUNCTION clutter_alpha_set_timeline ##### -->
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<para>
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</para>
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@alpha:
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@timeline:
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<!-- ##### FUNCTION clutter_alpha_get_timeline ##### -->
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<para>
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</para>
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@alpha:
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@Returns:
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<!-- ##### STRUCT ClutterSmoothstep ##### -->
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<para>
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Represents minimum and maximum thresholds for the smoothstep function. The
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thresholds are values from <0,1> relative to the frame-length of the behaviour,
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i.e., if the behaviour consists of 60 frames, threshold of 0.25 corresponds to
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frame 15, and threshold of 1.0 to frame 60.
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</para>
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@min: lower threshold; a #ClutterFixed value from <0,1>
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@max: upper threshold; a #ClutterFixed value from <0,1>
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<!-- ##### FUNCTION clutter_smoothstep_copy ##### -->
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<para>
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</para>
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@smoothstep:
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@Returns:
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<!-- ##### FUNCTION clutter_smoothstep_free ##### -->
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<para>
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</para>
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@smoothstep:
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<!-- ##### MACRO CLUTTER_ALPHA_RAMP_INC ##### -->
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<para>
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Symbolic name for passing clutter_ramp_inc_func().
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</para>
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<!-- ##### FUNCTION clutter_ramp_inc_func ##### -->
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<para>
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</para>
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@alpha:
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@dummy:
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@Returns:
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<!-- ##### MACRO CLUTTER_ALPHA_RAMP_DEC ##### -->
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<para>
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Symbolic name for passing clutter_ramp_dec_func().
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</para>
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<!-- ##### FUNCTION clutter_ramp_dec_func ##### -->
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<para>
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</para>
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@alpha:
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@dummy:
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@Returns:
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<!-- ##### MACRO CLUTTER_ALPHA_RAMP ##### -->
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<para>
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Symbolic name for passing clutter_ramp_func().
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</para>
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<!-- ##### FUNCTION clutter_ramp_func ##### -->
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<para>
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</para>
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@alpha:
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@dummy:
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@Returns:
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<!-- ##### MACRO CLUTTER_ALPHA_SINE ##### -->
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<para>
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Symbolic name for passing clutter_sine_func().
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</para>
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<!-- ##### FUNCTION clutter_sine_func ##### -->
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<para>
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</para>
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@alpha:
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@dummy:
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@Returns:
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<!-- ##### MACRO CLUTTER_ALPHA_SINE_INC ##### -->
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<para>
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</para>
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<!-- ##### FUNCTION clutter_sine_inc_func ##### -->
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<para>
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</para>
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@alpha:
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@dummy:
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@Returns:
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<!-- ##### MACRO CLUTTER_ALPHA_SINE_DEC ##### -->
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<para>
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</para>
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<!-- ##### FUNCTION clutter_sine_dec_func ##### -->
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<para>
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</para>
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@alpha:
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@dummy:
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@Returns:
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<!-- ##### MACRO CLUTTER_ALPHA_SINE_HALF ##### -->
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<para>
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</para>
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<!-- ##### FUNCTION clutter_sine_half_func ##### -->
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<para>
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</para>
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@alpha:
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@dummy:
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@Returns:
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<!-- ##### MACRO CLUTTER_ALPHA_SQUARE ##### -->
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<para>
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</para>
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<!-- ##### FUNCTION clutter_square_func ##### -->
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<para>
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</para>
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@alpha:
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@dummy:
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@Returns:
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<!-- ##### MACRO CLUTTER_ALPHA_SMOOTHSTEP ##### -->
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<para>
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</para>
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<!-- ##### FUNCTION clutter_smoothstep_func ##### -->
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<para>
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</para>
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@alpha:
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@data:
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@Returns:
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<!-- ##### MACRO CLUTTER_ALPHA_EXP_INC ##### -->
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<para>
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</para>
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<!-- ##### FUNCTION clutter_exp_inc_func ##### -->
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<para>
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</para>
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@alpha:
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@dummy:
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@Returns:
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<!-- ##### MACRO CLUTTER_ALPHA_EXP_DEC ##### -->
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<para>
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</para>
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<!-- ##### FUNCTION clutter_exp_dec_func ##### -->
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<para>
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</para>
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@alpha:
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@dummy:
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@Returns:
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