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Experimental support for Drag & Drop

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Add a `DragArea` and `DropArea` elements.
It is currently gated as experimental.
This commit is contained in:
Olivier Goffart 2025-06-17 15:46:11 +02:00
parent 47a556d0e7
commit 3823c1e8da
21 changed files with 610 additions and 113 deletions
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33
api/cpp/include/slint_window.h
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@ -499,12 +499,8 @@ public:
void dispatch_pointer_press_event(LogicalPosition pos, PointerEventButton button)
{
private_api::assert_main_thread();
using slint::cbindgen_private::MouseEvent;
MouseEvent event { .tag = MouseEvent::Tag::Pressed,
.pressed = MouseEvent::Pressed_Body { .position = { pos.x, pos.y },
.button = button,
.click_count = 0 } };
inner.dispatch_pointer_event(event);
inner.dispatch_pointer_event(
slint::cbindgen_private::MouseEvent::Pressed({ pos.x, pos.y }, button, 0));
}
/// Dispatches a pointer or mouse release event to the scene.
///
@ -516,12 +512,8 @@ public:
void dispatch_pointer_release_event(LogicalPosition pos, PointerEventButton button)
{
private_api::assert_main_thread();
using slint::cbindgen_private::MouseEvent;
MouseEvent event { .tag = MouseEvent::Tag::Released,
.released = MouseEvent::Released_Body { .position = { pos.x, pos.y },
.button = button,
.click_count = 0 } };
inner.dispatch_pointer_event(event);
inner.dispatch_pointer_event(
slint::cbindgen_private::MouseEvent::Released({ pos.x, pos.y }, button, 0));
}
/// Dispatches a pointer exit event to the scene.
///
@ -532,9 +524,7 @@ public:
void dispatch_pointer_exit_event()
{
private_api::assert_main_thread();
using slint::cbindgen_private::MouseEvent;
MouseEvent event { .tag = MouseEvent::Tag::Exit, .moved = {} };
inner.dispatch_pointer_event(event);
inner.dispatch_pointer_event(slint::cbindgen_private::MouseEvent::Exit());
}
/// Dispatches a pointer move event to the scene.
@ -546,10 +536,7 @@ public:
void dispatch_pointer_move_event(LogicalPosition pos)
{
private_api::assert_main_thread();
using slint::cbindgen_private::MouseEvent;
MouseEvent event { .tag = MouseEvent::Tag::Moved,
.moved = MouseEvent::Moved_Body { .position = { pos.x, pos.y } } };
inner.dispatch_pointer_event(event);
inner.dispatch_pointer_event(slint::cbindgen_private::MouseEvent::Moved({ pos.x, pos.y }));
}
/// Dispatches a scroll (or wheel) event to the scene.
@ -563,12 +550,8 @@ public:
void dispatch_pointer_scroll_event(LogicalPosition pos, float delta_x, float delta_y)
{
private_api::assert_main_thread();
using slint::cbindgen_private::MouseEvent;
MouseEvent event { .tag = MouseEvent::Tag::Wheel,
.wheel = MouseEvent::Wheel_Body { .position = { pos.x, pos.y },
.delta_x = delta_x,
.delta_y = delta_y } };
inner.dispatch_pointer_event(event);
inner.dispatch_pointer_event(
slint::cbindgen_private::MouseEvent::Wheel({ pos.x, pos.y }, delta_x, delta_y));
}
/// Set the logical size of this window after a resize event