[GTK] Fix Spinner [get|set]TextLimit on GTK 4

Author: akurtakov

bundles/org.eclipse.swt/Eclipse SWT PI/gtk/library/gtk4.c

@@ -707,6 +707,18 @@ JNIEXPORT jlong JNICALL GTK4_NATIVE(gtk_1editable_1get_1delegate)
 }
 #endif
 
+#ifndef NO_gtk_1editable_1get_1max_1width_1chars
+JNIEXPORT jint JNICALL GTK4_NATIVE(gtk_1editable_1get_1max_1width_1chars)
+	(JNIEnv *env, jclass that, jlong arg0)
+{
+	jint rc = 0;
+	GTK4_NATIVE_ENTER(env, that, gtk_1editable_1get_1max_1width_1chars_FUNC);
+	rc = (jint)gtk_editable_get_max_width_chars((GtkEditable *)arg0);
+	GTK4_NATIVE_EXIT(env, that, gtk_1editable_1get_1max_1width_1chars_FUNC);
+	return rc;
+}
+#endif
+
 #ifndef NO_gtk_1editable_1get_1text
 JNIEXPORT jlong JNICALL GTK4_NATIVE(gtk_1editable_1get_1text)
 	(JNIEnv *env, jclass that, jlong arg0)
@@ -719,6 +731,16 @@ JNIEXPORT jlong JNICALL GTK4_NATIVE(gtk_1editable_1get_1text)
 }
 #endif
 
+#ifndef NO_gtk_1editable_1set_1max_1width_1chars
+JNIEXPORT void JNICALL GTK4_NATIVE(gtk_1editable_1set_1max_1width_1chars)
+	(JNIEnv *env, jclass that, jlong arg0, jint arg1)
+{
+	GTK4_NATIVE_ENTER(env, that, gtk_1editable_1set_1max_1width_1chars_FUNC);
+	gtk_editable_set_max_width_chars((GtkEditable *)arg0, (int)arg1);
+	GTK4_NATIVE_EXIT(env, that, gtk_1editable_1set_1max_1width_1chars_FUNC);
+}
+#endif
+
 #ifndef NO_gtk_1entry_1buffer_1get_1text
 JNIEXPORT jlong JNICALL GTK4_NATIVE(gtk_1entry_1buffer_1get_1text)
 	(JNIEnv *env, jclass that, jlong arg0)

bundles/org.eclipse.swt/Eclipse SWT PI/gtk/library/gtk4_stats.h

@@ -72,7 +72,9 @@ typedef enum {
 	gtk_1drop_1target_1async_1new_FUNC,
 	gtk_1drop_1target_1async_1set_1formats_FUNC,
 	gtk_1editable_1get_1delegate_FUNC,
+	gtk_1editable_1get_1max_1width_1chars_FUNC,
 	gtk_1editable_1get_1text_FUNC,
+	gtk_1editable_1set_1max_1width_1chars_FUNC,
 	gtk_1entry_1buffer_1get_1text_FUNC,
 	gtk_1entry_1get_1buffer_FUNC,
 	gtk_1entry_1get_1text_1length_FUNC,

bundles/org.eclipse.swt/Eclipse SWT PI/gtk/org/eclipse/swt/internal/gtk4/GTK4.java

@@ -120,6 +120,15 @@ public class GTK4 {
 	public static final native long gtk_editable_get_text(long editable);
 	/** @param editable cast=(GtkEditable *) */
 	public static final native long gtk_editable_get_delegate(long editable);
+	/**
+	 * @param editable cast=(GtkEditable *)
+	 */
+	public static final native int gtk_editable_get_max_width_chars(long editable);
+	/**
+	 * @param editable cast=(GtkEditable *)
+	 * @param chars cast=(int)
+	 */
+	public static final native void gtk_editable_set_max_width_chars(long editable, int chars);
 
 	/* GtkPicture */
 	public static final native long gtk_picture_new();

bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Spinner.java

@@ -330,7 +330,7 @@ void createHandle (int index) {
 		GTK3.gtk_widget_set_has_window(fixedHandle, true);
 		GTK3.gtk_container_add (fixedHandle, handle);
 	}
-	GTK.gtk_editable_set_editable (GTK.GTK4 ? entryHandle : handle, (style & SWT.READ_ONLY) == 0);
+	GTK.gtk_editable_set_editable (handle, (style & SWT.READ_ONLY) == 0);
 	GTK.gtk_spin_button_set_wrap (handle, (style & SWT.WRAP) != 0);
 	imContext = OS.imContextLast();
 	// In GTK 3 font description is inherited from parent widget which is not how SWT has always worked,
@@ -586,7 +586,12 @@ public String getText() {
  */
 public int getTextLimit () {
 	checkWidget ();
-	int limit = GTK.gtk_entry_get_max_length (GTK.GTK4 ? entryHandle : handle);
+	int limit;
+	if (GTK.GTK4) {
+		limit = GTK4.gtk_editable_get_max_width_chars(handle);
+	} else {
+		limit = GTK.gtk_entry_get_max_length (handle);
+	}
 	return limit == 0 ? LIMIT : limit;
 }
 
@@ -1160,7 +1165,11 @@ public void setSelection (int value) {
 public void setTextLimit (int limit) {
 	checkWidget ();
 	if (limit == 0) error (SWT.ERROR_CANNOT_BE_ZERO);
-	GTK.gtk_entry_set_max_length (GTK.GTK4 ? entryHandle : handle, limit);
+	if(GTK.GTK4) {
+		GTK4.gtk_editable_set_max_width_chars (handle, limit);
+	} else {
+		GTK.gtk_entry_set_max_length (handle, limit);
+	}
 }
 
 /**