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libgimpwidgets: handle Enter/Esc keys in GimpSpinButton 

In GimpSpinButton, don't propagate Enter key-press events if
updating the spin-button's value in response changes the entered
text.  This prevents confirming dialogs when hitting Enter after
entering a math expression in size entries, updating their value
instead.

Likewise, don't propagate Escape key-press events if a new value
was entered, and restore the original value instead.
This commit is contained in:
Ell 2020-07-14 12:50:04 +03:00
parent 2e46e6552b
commit e531023031
1 changed files with 52 additions and 0 deletions
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52
libgimpwidgets/gimpspinbutton.c
View File

@ -21,8 +21,11 @@
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpmath/gimpmath.h"
@ -62,6 +65,8 @@ struct _GimpSpinButtonPrivate
static gboolean gimp_spin_button_scroll (GtkWidget *widget,
GdkEventScroll *event);
static gboolean gimp_spin_button_key_press (GtkWidget *widget,
GdkEventKey *event);
static gboolean gimp_spin_button_focus_in (GtkWidget *widget,
GdkEventFocus *event);
static gboolean gimp_spin_button_focus_out (GtkWidget *widget,
@ -90,6 +95,7 @@ gimp_spin_button_class_init (GimpSpinButtonClass *klass)
GtkSpinButtonClass *spin_button_class = GTK_SPIN_BUTTON_CLASS (klass);
widget_class->scroll_event = gimp_spin_button_scroll;
widget_class->key_press_event = gimp_spin_button_key_press;
widget_class->focus_in_event = gimp_spin_button_focus_in;
widget_class->focus_out_event = gimp_spin_button_focus_out;
@ -152,6 +158,52 @@ gimp_spin_button_scroll (GtkWidget *widget,
return GTK_WIDGET_CLASS (parent_class)->scroll_event (widget, event);
}
static gboolean
gimp_spin_button_key_press (GtkWidget *widget,
GdkEventKey *event)
{
switch (event->keyval)
{
case GDK_KEY_Return:
case GDK_KEY_KP_Enter:
case GDK_KEY_ISO_Enter:
case GDK_KEY_Escape:
{
GtkEntry *entry = GTK_ENTRY (widget);
GtkSpinButton *spin_button = GTK_SPIN_BUTTON (widget);
gchar *text;
gboolean changed;
text = g_strdup (gtk_entry_get_text (entry));
if (event->keyval == GDK_KEY_Escape)
{
gtk_spin_button_set_value (
spin_button,
gtk_spin_button_get_value (spin_button));
}
else
{
gtk_spin_button_update (spin_button);
}
changed = strcmp (gtk_entry_get_text (entry), text);
g_free (text);
if (changed)
{
gtk_editable_set_position (GTK_EDITABLE (widget), -1);
return TRUE;
}
}
break;
}
return GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event);
}
static gboolean
gimp_spin_button_focus_in (GtkWidget *widget,
GdkEventFocus *event)