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working track drag-n-drop, re-picked from a 2nd implementation on a branch

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This commit is contained in:
Paul Davis 2024-05-05 15:09:34 -06:00
parent fdd91cc325
commit f92d821a72
4 changed files with 162 additions and 30 deletions
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50
gtk2_ardour/time_axis_view.cc
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@ -438,7 +438,13 @@ TimeAxisView::controls_ebox_button_press (GdkEventButton* event)
_ebox_release_can_act = true;
if (maybe_set_cursor (event->y) > 0) {
_resize_drag_start = event->y_root;
} else {
if (event->button == 1) {
_editor.start_track_drag (*this, event->y, controls_ebox);
}
}
return true;
@ -453,6 +459,12 @@ TimeAxisView::idle_resize (int32_t h)
bool
TimeAxisView::controls_ebox_motion (GdkEventMotion* ev)
{
if (_editor.track_dragging()) {
_editor.mid_track_drag (ev, controls_ebox);
gdk_event_request_motions (ev);
return true;
}
if (_resize_drag_start >= 0) {
/* (ab)use the DragManager to do autoscrolling - basically we
@ -468,13 +480,15 @@ TimeAxisView::controls_ebox_motion (GdkEventMotion* ev)
_editor.add_to_idle_resize (this, delta);
_resize_drag_start = ev->y_root;
_did_resize = true;
gdk_event_request_motions (ev);
return true;
} else {
/* not dragging but ... */
maybe_set_cursor (ev->y);
}
gdk_event_request_motions(ev);
return true;
gdk_event_request_motions (ev);
return false;
}
bool
@ -519,28 +533,28 @@ bool
TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
{
if (_editor.track_dragging()) {
return false;
_editor.end_track_drag ();
} else {
if (_resize_drag_start >= 0) {
if (_have_preresize_cursor) {
gdk_window_set_cursor (controls_ebox.get_window()->gobj(), _preresize_cursor);
_preresize_cursor = 0;
_have_preresize_cursor = false;
}
_editor.stop_canvas_autoscroll ();
_resize_drag_start = -1;
if (_did_resize) {
_did_resize = false;
// don't change selection
return true;
}
}
if (_resize_drag_start >= 0) {
if (_have_preresize_cursor) {
gdk_window_set_cursor (controls_ebox.get_window()->gobj(), _preresize_cursor);
_preresize_cursor = 0;
_have_preresize_cursor = false;
}
_editor.stop_canvas_autoscroll ();
_resize_drag_start = -1;
if (_did_resize) {
_did_resize = false;
// don't change selection
if (!_ebox_release_can_act) {
return true;
}
}
if (!_ebox_release_can_act) {
return true;
}
switch (ev->button) {
case 1:
if (selectable()) {