package rui // ResizeEvent is the constant for "resize-event" property tag. // The "resize-event" is fired when the view changes its size. // The main listener format: // func(View, Frame). // The additional listener formats: // func(Frame), func(View), and func(). const ResizeEvent = "resize-event" func (view *viewData) onResize(self View, x, y, width, height float64) { view.frame.Left = x view.frame.Top = y view.frame.Width = width view.frame.Height = height for _, listener := range GetResizeListeners(view, "") { listener(self, view.frame) } } func (view *viewData) onItemResize(self View, index string, x, y, width, height float64) { } func (view *viewData) setFrameListener(tag string, value any) bool { listeners, ok := valueToEventListeners[View, Frame](value) if !ok { notCompatibleType(tag, value) return false } if listeners == nil { delete(view.properties, tag) } else { view.properties[tag] = listeners } view.propertyChangedEvent(tag) return true } func (view *viewData) setNoResizeEvent() { view.noResizeEvent = true } func (view *viewData) isNoResizeEvent() bool { return view.noResizeEvent } func (container *viewsContainerData) isNoResizeEvent() bool { if container.noResizeEvent { return true } if parent := container.Parent(); parent != nil { return parent.isNoResizeEvent() } return false } func (view *viewData) Frame() Frame { return view.frame } // GetViewFrame returns the size and location of view's viewport. // If the second argument (subviewID) is "" then the value of the first argument (view) is returned func GetViewFrame(view View, subviewID string) Frame { if subviewID != "" { view = ViewByID(view, subviewID) } if view == nil { return Frame{} } return view.Frame() } // GetResizeListeners returns the list of "resize-event" listeners. If there are no listeners then the empty list is returned // If the second argument (subviewID) is "" then the listeners list of the first argument (view) is returned func GetResizeListeners(view View, subviewID string) []func(View, Frame) { return getEventListeners[View, Frame](view, subviewID, ResizeEvent) }