gtk/subclass/
icon_view.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use libc::c_int;
4
5use glib::subclass::prelude::*;
6use glib::translate::*;
7use glib::Cast;
8
9use super::container::ContainerImpl;
10
11use crate::IconView;
12use crate::MovementStep;
13use crate::TreePath;
14
15pub trait IconViewImpl: IconViewImplExt + ContainerImpl {
16    /// Activates the item determined by `path`.
17    /// ## `path`
18    /// The [`TreePath`][crate::TreePath] to be activated
19    fn item_activated(&self, path: &TreePath) {
20        self.parent_item_activated(path)
21    }
22    fn selection_changed(&self) {
23        self.parent_selection_changed()
24    }
25    /// Selects all the icons. `self` must has its selection mode set
26    /// to [`SelectionMode::Multiple`][crate::SelectionMode::Multiple].
27    fn select_all(&self) {
28        self.parent_select_all()
29    }
30    /// Unselects all the icons.
31    fn unselect_all(&self) {
32        self.parent_unselect_all()
33    }
34    fn select_cursor_item(&self) {
35        self.parent_select_cursor_item()
36    }
37    fn toggle_cursor_item(&self) {
38        self.parent_toggle_cursor_item()
39    }
40    fn move_cursor(&self, step: MovementStep, count: i32) -> bool {
41        self.parent_move_cursor(step, count)
42    }
43    fn activate_cursor_item(&self) -> bool {
44        self.parent_activate_cursor_item()
45    }
46}
47
48mod sealed {
49    pub trait Sealed {}
50    impl<T: super::IconViewImpl> Sealed for T {}
51}
52
53pub trait IconViewImplExt: ObjectSubclass + sealed::Sealed {
54    fn parent_item_activated(&self, path: &TreePath) {
55        unsafe {
56            let data = Self::type_data();
57            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkIconViewClass;
58            if let Some(f) = (*parent_class).item_activated {
59                f(
60                    self.obj().unsafe_cast_ref::<IconView>().to_glib_none().0,
61                    mut_override(path.to_glib_none().0),
62                )
63            }
64        }
65    }
66    fn parent_selection_changed(&self) {
67        unsafe {
68            let data = Self::type_data();
69            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkIconViewClass;
70            if let Some(f) = (*parent_class).selection_changed {
71                f(self.obj().unsafe_cast_ref::<IconView>().to_glib_none().0)
72            }
73        }
74    }
75    fn parent_select_all(&self) {
76        unsafe {
77            let data = Self::type_data();
78            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkIconViewClass;
79            if let Some(f) = (*parent_class).select_all {
80                f(self.obj().unsafe_cast_ref::<IconView>().to_glib_none().0)
81            }
82        }
83    }
84    fn parent_unselect_all(&self) {
85        unsafe {
86            let data = Self::type_data();
87            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkIconViewClass;
88            if let Some(f) = (*parent_class).unselect_all {
89                f(self.obj().unsafe_cast_ref::<IconView>().to_glib_none().0)
90            }
91        }
92    }
93    fn parent_select_cursor_item(&self) {
94        unsafe {
95            let data = Self::type_data();
96            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkIconViewClass;
97            if let Some(f) = (*parent_class).select_cursor_item {
98                f(self.obj().unsafe_cast_ref::<IconView>().to_glib_none().0)
99            }
100        }
101    }
102    fn parent_toggle_cursor_item(&self) {
103        unsafe {
104            let data = Self::type_data();
105            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkIconViewClass;
106            if let Some(f) = (*parent_class).toggle_cursor_item {
107                f(self.obj().unsafe_cast_ref::<IconView>().to_glib_none().0)
108            }
109        }
110    }
111    fn parent_move_cursor(&self, step: MovementStep, count: i32) -> bool {
112        unsafe {
113            let data = Self::type_data();
114            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkIconViewClass;
115            if let Some(f) = (*parent_class).move_cursor {
116                from_glib(f(
117                    self.obj().unsafe_cast_ref::<IconView>().to_glib_none().0,
118                    step.into_glib(),
119                    count,
120                ))
121            } else {
122                false
123            }
124        }
125    }
126    fn parent_activate_cursor_item(&self) -> bool {
127        unsafe {
128            let data = Self::type_data();
129            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkIconViewClass;
130            if let Some(f) = (*parent_class).activate_cursor_item {
131                from_glib(f(self.obj().unsafe_cast_ref::<IconView>().to_glib_none().0))
132            } else {
133                false
134            }
135        }
136    }
137}
138
139impl<T: IconViewImpl> IconViewImplExt for T {}
140
141unsafe impl<T: IconViewImpl> IsSubclassable<T> for IconView {
142    fn class_init(class: &mut ::glib::Class<Self>) {
143        Self::parent_class_init::<T>(class);
144
145        if !crate::rt::is_initialized() {
146            panic!("GTK has to be initialized first");
147        }
148
149        let klass = class.as_mut();
150        klass.item_activated = Some(icon_view_item_activated::<T>);
151        klass.selection_changed = Some(icon_view_selection_changed::<T>);
152        klass.select_all = Some(icon_view_select_all::<T>);
153        klass.unselect_all = Some(icon_view_unselect_all::<T>);
154        klass.select_cursor_item = Some(icon_view_select_cursor_item::<T>);
155        klass.toggle_cursor_item = Some(icon_view_toggle_cursor_item::<T>);
156        klass.move_cursor = Some(icon_view_move_cursor::<T>);
157        klass.activate_cursor_item = Some(icon_view_activate_cursor_item::<T>);
158    }
159}
160
161unsafe extern "C" fn icon_view_item_activated<T: IconViewImpl>(
162    ptr: *mut ffi::GtkIconView,
163    path: *mut ffi::GtkTreePath,
164) {
165    let instance = &*(ptr as *mut T::Instance);
166    let imp = instance.imp();
167    let path = from_glib_borrow(path);
168
169    imp.item_activated(&path)
170}
171
172unsafe extern "C" fn icon_view_selection_changed<T: IconViewImpl>(ptr: *mut ffi::GtkIconView) {
173    let instance = &*(ptr as *mut T::Instance);
174    let imp = instance.imp();
175
176    imp.selection_changed()
177}
178
179unsafe extern "C" fn icon_view_select_all<T: IconViewImpl>(ptr: *mut ffi::GtkIconView) {
180    let instance = &*(ptr as *mut T::Instance);
181    let imp = instance.imp();
182
183    imp.select_all()
184}
185
186unsafe extern "C" fn icon_view_unselect_all<T: IconViewImpl>(ptr: *mut ffi::GtkIconView) {
187    let instance = &*(ptr as *mut T::Instance);
188    let imp = instance.imp();
189
190    imp.unselect_all()
191}
192
193unsafe extern "C" fn icon_view_select_cursor_item<T: IconViewImpl>(ptr: *mut ffi::GtkIconView) {
194    let instance = &*(ptr as *mut T::Instance);
195    let imp = instance.imp();
196
197    imp.select_cursor_item()
198}
199
200unsafe extern "C" fn icon_view_toggle_cursor_item<T: IconViewImpl>(ptr: *mut ffi::GtkIconView) {
201    let instance = &*(ptr as *mut T::Instance);
202    let imp = instance.imp();
203
204    imp.toggle_cursor_item()
205}
206
207unsafe extern "C" fn icon_view_move_cursor<T: IconViewImpl>(
208    ptr: *mut ffi::GtkIconView,
209    step: ffi::GtkMovementStep,
210    count: c_int,
211) -> glib::ffi::gboolean {
212    let instance = &*(ptr as *mut T::Instance);
213    let imp = instance.imp();
214
215    imp.move_cursor(from_glib(step), count).into_glib()
216}
217
218unsafe extern "C" fn icon_view_activate_cursor_item<T: IconViewImpl>(
219    ptr: *mut ffi::GtkIconView,
220) -> glib::ffi::gboolean {
221    let instance = &*(ptr as *mut T::Instance);
222    let imp = instance.imp();
223
224    imp.activate_cursor_item().into_glib()
225}
gtk/subclass/icon_view.rs

gtk/subclass/
icon_view.rs
