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computeScroll: move the allocation instead of only the snapshot

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This commit is contained in:
Julian Winkler
2023-11-04 07:49:38 +01:00
parent 585d934483
commit 7bb5a1e33a
1 changed files with 35 additions and 14 deletions
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49
src/api-impl-jni/widgets/WrapperWidget.c
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@@ -48,26 +48,46 @@ void skia_draw_func(SKArea *sk_area, sk_canvas_t *canvas, void *user_data)
(*env)->ExceptionDescribe(env);
}
void wrapper_snapshot(GtkWidget* widget, GtkSnapshot* snapshot)
GtkSizeRequestMode wrapper_widget_get_request_mode(GtkWidget *widget)
{
WrapperWidget *wrapper = WRAPPER_WIDGET(widget);
return gtk_widget_get_request_mode(wrapper->child);
}
void wrapper_widget_measure(GtkWidget *widget, GtkOrientation orientation, int for_size, int *minimum, int *natural, int *minimum_baseline, int *natural_baseline)
{
WrapperWidget *wrapper = WRAPPER_WIDGET(widget);
gtk_widget_measure(wrapper->child, orientation, for_size, minimum, natural, minimum_baseline, natural_baseline);
}
void wrapper_widget_allocate(GtkWidget *widget, int width, int height, int baseline)
{
WrapperWidget *wrapper = WRAPPER_WIDGET(widget);
GtkAllocation allocation = {
.x = 0,
.y = 0,
.width = width,
.height = height,
};
if (wrapper->computeScroll_method) {
// The child needs to know its size before calling computeScroll, so we allocate it twice.
// second allocate will not trigger onLayout, because of unchanged size
gtk_widget_size_allocate(wrapper->child, &allocation, baseline);
JNIEnv *env;
(*wrapper->jvm)->GetEnv(wrapper->jvm, (void**)&env, JNI_VERSION_1_6);
(*env)->CallVoidMethod(env, wrapper->jobj, wrapper->computeScroll_method);
if((*env)->ExceptionCheck(env))
(*env)->ExceptionDescribe(env);
graphene_point_t translation = {
.x = -(*env)->CallIntMethod(env, wrapper->jobj, handle_cache.view.getScrollX),
.y = -(*env)->CallIntMethod(env, wrapper->jobj, handle_cache.view.getScrollY),
};
gtk_snapshot_translate(snapshot, &translation);
allocation.x = -(*env)->CallIntMethod(env, wrapper->jobj, handle_cache.view.getScrollX);
allocation.y = -(*env)->CallIntMethod(env, wrapper->jobj, handle_cache.view.getScrollY);
}
gtk_widget_snapshot_child(widget, wrapper->child, snapshot);
if (wrapper->sk_area)
gtk_widget_snapshot_child(widget, wrapper->sk_area, snapshot);
}
gtk_widget_size_allocate(wrapper->child, &allocation, baseline);
if (wrapper->sk_area)
gtk_widget_size_allocate(wrapper->sk_area, &allocation, baseline);
}
static void wrapper_widget_class_init(WrapperWidgetClass *class)
{
@@ -76,9 +96,9 @@ static void wrapper_widget_class_init(WrapperWidgetClass *class)
object_class->dispose = wrapper_widget_dispose;
widget_class->snapshot = wrapper_snapshot;
gtk_widget_class_set_layout_manager_type(widget_class, GTK_TYPE_BIN_LAYOUT);
widget_class->get_request_mode = wrapper_widget_get_request_mode;
widget_class->measure = wrapper_widget_measure;
widget_class->size_allocate = wrapper_widget_allocate;
}
GtkWidget * wrapper_widget_new(void)
@@ -108,7 +128,8 @@ void wrapper_widget_queue_draw(WrapperWidget *wrapper)
if(wrapper->child)
gtk_widget_queue_draw(wrapper->child);
gtk_widget_queue_draw(GTK_WIDGET(wrapper));
if (wrapper->computeScroll_method)
gtk_widget_queue_allocate(GTK_WIDGET(wrapper));
}
void wrapper_widget_set_jobject(WrapperWidget *wrapper, JNIEnv *env, jobject jobj)