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demos: Update hypertext demo to use controllers

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This commit is contained in:
Carlos Garnacho 2018-06-26 22:51:05 +02:00
parent 4d59a00074
commit 85f6995511
1 changed files with 29 additions and 34 deletions
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63
demos/gtk-demo/hypertext.c
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@ -135,55 +135,42 @@ static void set_cursor_if_appropriate (GtkTextView *text_view,
gint x, gint x,
gint y); gint y);
/* Links can also be activated by clicking or tapping. static void
*/ released_cb (GtkGestureMultiPress *gesture,
static gboolean guint n_press,
event_cb (GtkWidget *text_view, gdouble x,
GdkEvent *ev) gdouble y,
GtkWidget *text_view)
{ {
GtkTextIter start, end, iter; GtkTextIter start, end, iter;
GtkTextBuffer *buffer; GtkTextBuffer *buffer;
gdouble ex, ey; int tx, ty;
int x, y;
GdkEventType type;
type = gdk_event_get_event_type (ev); if (gtk_gesture_single_get_button (GTK_GESTURE_SINGLE (gesture)) > 1)
return;
gdk_event_get_coords (ev, &ex, &ey);
gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view), gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view),
GTK_TEXT_WINDOW_WIDGET, GTK_TEXT_WINDOW_WIDGET,
ex, ey, &x, &y); x, y, &tx, &ty);
if (type == GDK_BUTTON_RELEASE)
{
guint button;
gdk_event_get_button (ev, &button);
if (button != GDK_BUTTON_PRIMARY)
return FALSE;
}
else if (type == GDK_MOTION_NOTIFY)
{
set_cursor_if_appropriate (GTK_TEXT_VIEW (text_view), x, y);
return FALSE;
}
else if (type == GDK_TOUCH_END)
{
}
else
return FALSE;
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view)); buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
/* we shouldn't follow a link if the user has selected something */ /* we shouldn't follow a link if the user has selected something */
gtk_text_buffer_get_selection_bounds (buffer, &start, &end); gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end)) if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end))
return FALSE; return;
if (gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (text_view), &iter, x, y)) if (gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (text_view), &iter, x, y))
follow_if_link (text_view, &iter); follow_if_link (text_view, &iter);
}
return TRUE; static void
motion_cb (GtkEventControllerMotion *controller,
gdouble x,
gdouble y,
GtkTextView *text_view)
{
set_cursor_if_appropriate (text_view, x, y);
} }
static gboolean hovering_over_link = FALSE; static gboolean hovering_over_link = FALSE;
@ -259,8 +246,16 @@ do_hypertext (GtkWidget *do_widget)
controller = gtk_event_controller_key_new (); controller = gtk_event_controller_key_new ();
g_signal_connect (controller, "key-pressed", G_CALLBACK (key_pressed), view); g_signal_connect (controller, "key-pressed", G_CALLBACK (key_pressed), view);
gtk_widget_add_controller (view, controller); gtk_widget_add_controller (view, controller);
g_signal_connect (view, "event",
G_CALLBACK (event_cb), NULL); controller = GTK_EVENT_CONTROLLER (gtk_gesture_multi_press_new ());
g_signal_connect (controller, "released",
G_CALLBACK (released_cb), view);
gtk_widget_add_controller (view, controller);
controller = gtk_event_controller_motion_new ();
g_signal_connect (controller, "motion",
G_CALLBACK (motion_cb), view);
gtk_widget_add_controller (view, controller);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)); buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));