1// Package gtk was automatically generated by github.com/bnema/puregotk DO NOT EDIT
2package gtk
3
4import (
5 "structs"
6 "unsafe"
7
8 "github.com/ebitengine/purego"
9
10 "github.com/bnema/puregotk/pkg/core"
11 "github.com/bnema/puregotk/v4/glib"
12 "github.com/bnema/puregotk/v4/gobject"
13 "github.com/bnema/puregotk/v4/gobject/types"
14)
15
16type GestureRotateClass struct {
17 _ structs.HostLayout
18}
19
20func (x *GestureRotateClass) GoPointer() uintptr {
21 return uintptr(unsafe.Pointer(x))
22}
23
24// Recognizes 2-finger rotation gestures.
25//
26// Whenever the angle between both handled sequences changes, the
27// [signal@Gtk.GestureRotate::angle-changed] signal is emitted.
28type GestureRotate struct {
29 Gesture
30}
31
32var xGestureRotateGLibType func() types.GType
33
34func GestureRotateGLibType() types.GType {
35 return xGestureRotateGLibType()
36}
37
38func GestureRotateNewFromInternalPtr(ptr uintptr) *GestureRotate {
39 cls := &GestureRotate{}
40 cls.Ptr = ptr
41 return cls
42}
43
44var xNewGestureRotate func() uintptr
45
46// Returns a newly created `GtkGesture` that recognizes 2-touch
47// rotation gestures.
48func NewGestureRotate() *GestureRotate {
49 var cls *GestureRotate
50
51 cret := xNewGestureRotate()
52
53 if cret == 0 {
54 return nil
55 }
56 cls = &GestureRotate{}
57 cls.Ptr = cret
58 return cls
59}
60
61var xGestureRotateGetAngleDelta func(uintptr) float64
62
63// Gets the angle delta in radians.
64//
65// If @gesture is active, this function returns the angle difference
66// in radians since the gesture was first recognized. If @gesture is
67// not active, 0 is returned.
68func (x *GestureRotate) GetAngleDelta() float64 {
69
70 cret := xGestureRotateGetAngleDelta(x.GoPointer())
71 return cret
72}
73
74func (c *GestureRotate) GoPointer() uintptr {
75 if c == nil {
76 return 0
77 }
78 return c.Ptr
79}
80
81func (c *GestureRotate) SetGoPointer(ptr uintptr) {
82 c.Ptr = ptr
83}
84
85// Emitted when the angle between both tracked points changes.
86func (x *GestureRotate) ConnectAngleChanged(cb *func(GestureRotate, float64, float64)) uint {
87 cbPtr := uintptr(unsafe.Pointer(cb))
88 if cbRefPtr, ok := glib.GetCallback(cbPtr); ok {
89 handlerID := gobject.SignalConnect(x.GoPointer(), "angle-changed", cbRefPtr)
90 glib.SaveHandlerMapping(handlerID, cbPtr)
91 return handlerID
92 }
93
94 fcb := func(clsPtr uintptr, AngleVarp float64, AngleDeltaVarp float64) {
95 fa := GestureRotate{}
96 fa.Ptr = clsPtr
97 cbFn := *cb
98
99 cbFn(fa, AngleVarp, AngleDeltaVarp)
100
101 }
102 cbRefPtr := purego.NewCallback(fcb)
103 glib.SaveCallbackWithClosure(cbPtr, cbRefPtr, cb)
104 handlerID := gobject.SignalConnect(x.GoPointer(), "angle-changed", cbRefPtr)
105 glib.SaveHandlerMapping(handlerID, cbPtr)
106 return handlerID
107}
108
109func init() {
110 core.SetPackageName("GTK", "gtk4")
111 core.SetSharedLibraries("GTK", []string{"libgtk-4.so.1"})
112 var libs []uintptr
113 for _, libPath := range core.GetPaths("GTK") {
114 lib, err := purego.Dlopen(libPath, purego.RTLD_NOW|purego.RTLD_GLOBAL)
115 if err != nil {
116 panic(err)
117 }
118 libs = append(libs, lib)
119 }
120
121 core.PuregoSafeRegister(&xGestureRotateGLibType, libs, "gtk_gesture_rotate_get_type")
122
123 core.PuregoSafeRegister(&xNewGestureRotate, libs, "gtk_gesture_rotate_new")
124
125 core.PuregoSafeRegister(&xGestureRotateGetAngleDelta, libs, "gtk_gesture_rotate_get_angle_delta")
126
127}