1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201

use crate::{Actor, ActorMeta, AlignAxis, Constraint};
use glib::{
    object as gobject,
    object::{Cast, IsA, ObjectType as ObjectType_},
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::boxed::Box as Box_;
use std::{fmt, mem::transmute};

glib_wrapper! {
    pub struct AlignConstraint(Object<ffi::ClutterAlignConstraint, ffi::ClutterAlignConstraintClass, AlignConstraintClass>) @extends Constraint, ActorMeta, gobject::InitiallyUnowned;

    match fn {
        get_type => || ffi::clutter_align_constraint_get_type(),
    }
}

impl AlignConstraint {
    /// Creates a new constraint, aligning a `Actor`'s position with
    /// regards of the size of the actor to `source`, with the given
    /// alignment `factor`
    /// ## `source`
    /// the `Actor` to use as the source of the
    ///  alignment, or `None`
    /// ## `axis`
    /// the axis to be used to compute the alignment
    /// ## `factor`
    /// the alignment factor, between 0.0 and 1.0
    ///
    /// # Returns
    ///
    /// the newly created `AlignConstraint`
    pub fn new<P: IsA<Actor>>(source: Option<&P>, axis: AlignAxis, factor: f32) -> AlignConstraint {
        unsafe {
            Constraint::from_glib_none(ffi::clutter_align_constraint_new(
                source.map(|p| p.as_ref()).to_glib_none().0,
                axis.to_glib(),
                factor,
            ))
            .unsafe_cast()
        }
    }

    /// Retrieves the value set using `AlignConstraint::set_align_axis`
    ///
    /// # Returns
    ///
    /// the alignment axis
    pub fn get_align_axis(&self) -> AlignAxis {
        unsafe {
            from_glib(ffi::clutter_align_constraint_get_align_axis(
                self.to_glib_none().0,
            ))
        }
    }

    /// Retrieves the factor set using `AlignConstraint::set_factor`
    ///
    /// # Returns
    ///
    /// the alignment factor
    pub fn get_factor(&self) -> f32 {
        unsafe { ffi::clutter_align_constraint_get_factor(self.to_glib_none().0) }
    }

    /// Retrieves the source of the alignment
    ///
    /// # Returns
    ///
    /// the `Actor` used as the source
    ///  of the alignment
    pub fn get_source(&self) -> Option<Actor> {
        unsafe {
            from_glib_none(ffi::clutter_align_constraint_get_source(
                self.to_glib_none().0,
            ))
        }
    }

    /// Sets the axis to which the alignment refers to
    /// ## `axis`
    /// the axis to which the alignment refers to
    pub fn set_align_axis(&self, axis: AlignAxis) {
        unsafe {
            ffi::clutter_align_constraint_set_align_axis(self.to_glib_none().0, axis.to_glib());
        }
    }

    /// Sets the alignment factor of the constraint
    ///
    /// The factor depends on the `AlignConstraint:align-axis` property
    /// and it is a value between 0.0 (meaning left, when
    /// `AlignConstraint:align-axis` is set to `AlignAxis::XAxis`; or
    /// meaning top, when `AlignConstraint:align-axis` is set to
    /// `AlignAxis::YAxis`) and 1.0 (meaning right, when
    /// `AlignConstraint:align-axis` is set to `AlignAxis::XAxis`; or
    /// meaning bottom, when `AlignConstraint:align-axis` is set to
    /// `AlignAxis::YAxis`). A value of 0.5 aligns in the middle in either
    /// cases
    /// ## `factor`
    /// the alignment factor, between 0.0 and 1.0
    pub fn set_factor(&self, factor: f32) {
        unsafe {
            ffi::clutter_align_constraint_set_factor(self.to_glib_none().0, factor);
        }
    }

    /// Sets the source of the alignment constraint
    /// ## `source`
    /// a `Actor`, or `None` to unset the source
    pub fn set_source<P: IsA<Actor>>(&self, source: Option<&P>) {
        unsafe {
            ffi::clutter_align_constraint_set_source(
                self.to_glib_none().0,
                source.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    pub fn connect_property_align_axis_notify<F: Fn(&AlignConstraint) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_align_axis_trampoline<F: Fn(&AlignConstraint) + 'static>(
            this: *mut ffi::ClutterAlignConstraint,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::align-axis\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_align_axis_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    pub fn connect_property_factor_notify<F: Fn(&AlignConstraint) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_factor_trampoline<F: Fn(&AlignConstraint) + 'static>(
            this: *mut ffi::ClutterAlignConstraint,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::factor\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_factor_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    pub fn connect_property_source_notify<F: Fn(&AlignConstraint) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_source_trampoline<F: Fn(&AlignConstraint) + 'static>(
            this: *mut ffi::ClutterAlignConstraint,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::source\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_source_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl fmt::Display for AlignConstraint {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "AlignConstraint")
    }
}