Exemplo n.º 1
0
        /// <summary>
        /// Mouse click handler.
        /// </summary>
        /// <param name="canvas">Canvas.</param>
        /// <param name="mouseButton">Mouse button number.</param>
        /// <param name="down">Specifies if the button is down.</param>
        /// <returns>True if handled.</returns>
        public static bool OnMouseClicked(GUIControl canvas, int mouseButton, bool down)
        {
            // If we click on a control that isn't a menu we want to close
            // all the open menus. Menus are children of the canvas.
            if (down && (null == HoveredControl || !HoveredControl.IsMenuComponent))
            {
                canvas.CloseMenus();
            }

            if (null == HoveredControl) return false;
            if (HoveredControl.GetCanvas() != canvas) return false;
            if (!HoveredControl.IsVisible) return false;
            if (HoveredControl == canvas) return false;

            if (mouseButton > MaxMouseButtons)
                return false;

            if (mouseButton == 0) 
                m_KeyData.LeftMouseDown = down;
            else if (mouseButton == 1) 
                m_KeyData.RightMouseDown = down;

            // Double click.
            // Todo: Shouldn't double click if mouse has moved significantly
            bool isDoubleClick = false;

            if (down &&
                m_LastClickPos.X == MousePosition.X &&
                m_LastClickPos.Y == MousePosition.Y &&
                (Platform.Neutral.GetTimeInSeconds() - m_LastClickTime[mouseButton]) < DoubleClickSpeed)
            {
                isDoubleClick = true;
            }

            if (down && !isDoubleClick)
            {
                m_LastClickTime[mouseButton] = Platform.Neutral.GetTimeInSeconds();
                m_LastClickPos = MousePosition;
            }

            if (down)
            {
                FindKeyboardFocus(HoveredControl);
            }

            HoveredControl.UpdateCursor();

            // This tells the child it has been touched, which
            // in turn tells its parents, who tell their parents.
            // This is basically so that Windows can pop themselves
            // to the top when one of their children have been clicked.
            if (down)
                HoveredControl.Touch();

#if GWEN_HOOKSYSTEM
            if (bDown)
            {
                if (Hook::CallHook(&Hook::BaseHook::OnControlClicked, HoveredControl, MousePosition.x,
                                   MousePosition.y))
                    return true;
            }
#endif

            switch (mouseButton)
            {
                case 0:
                    {
                        if (DragAndDrop.OnMouseButton(HoveredControl, MousePosition.X, MousePosition.Y, down))
                            return true;

                        if (isDoubleClick)
                            return HoveredControl.InputMouseDoubleClickedLeft(MousePosition.X, MousePosition.Y);
                        else
                            return HoveredControl.InputMouseClickedLeft(MousePosition.X, MousePosition.Y, down);                        
                    }

                case 1:
                    {
                        if (isDoubleClick)
                            return HoveredControl.InputMouseDoubleClickedRight(MousePosition.X, MousePosition.Y);
                        else
                            return HoveredControl.InputMouseClickedRight(MousePosition.X, MousePosition.Y, down);                        
                    }
            }

            return false;
        }