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columnview: Make resize cursors reliable

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Ensure that the column resize cursor stays in place
for the duration of the resize drag. This is a bit
annoying, since the implicit grab can end up on the
header of a different column from the one we are
resizing, so just set the cursor on all column headers.
This commit is contained in:
Matthias Clasen 2020-10-19 08:28:24 -04:00
parent 39baf4fff4
commit 1976df1e54
1 changed files with 26 additions and 0 deletions
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26
gtk/gtkcolumnview.c
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@ -895,6 +895,25 @@ header = gtk_column_view_column_get_header (column);
return graphene_rect_contains_point (&rect, &(graphene_point_t) { x, y});
}
static void
set_resize_cursor (GtkColumnView *self,
gboolean set)
{
int i, n;
n = g_list_model_get_n_items (G_LIST_MODEL (self->columns));
for (i = 0; i < n; i++)
{
GtkColumnViewColumn *column = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
GtkWidget *header = gtk_column_view_column_get_header (column);
if (set)
gtk_widget_set_cursor_from_name (header, "col-resize");
else
gtk_widget_set_cursor (header, NULL);
g_object_unref (column);
}
}
static void
header_drag_begin (GtkGestureDrag *gesture,
double start_x,
@ -933,7 +952,10 @@ header_drag_begin (GtkGestureDrag *gesture,
self->drag_x = start_x - size;
self->in_column_resize = TRUE;
set_resize_cursor (self, TRUE);
g_object_unref (column);
break;
}
}
@ -981,6 +1003,7 @@ header_drag_end (GtkGestureDrag *gesture,
if (self->in_column_resize)
{
set_resize_cursor (self, FALSE);
self->in_column_resize = FALSE;
}
else if (self->in_column_reorder)
@ -1117,6 +1140,9 @@ header_motion (GtkEventControllerMotion *controller,
gboolean cursor_set = FALSE;
int i, n;
if (self->in_column_resize)
return;
n = g_list_model_get_n_items (G_LIST_MODEL (self->columns));
for (i = 0; i < n; i++)
{