+ protected int getSleepTime(final int timeout) {
+ /*
+ auto now = Clock.currTime;
+ auto sleepTime = dur!("msecs")(timeout);
+ foreach (t; timers) {
+ if (t.nextTick < now) {
+ return 0;
+ }
+ if ((t.nextTick > now) &&
+ ((t.nextTick - now) < sleepTime)
+ ) {
+ sleepTime = t.nextTick - now;
+ }
+ }
+ assert(sleepTime.total!("msecs")() >= 0);
+ return cast(uint)sleepTime.total!("msecs")();
+ */
+ // TODO: fix timers. Until then, come back after 250 millis.
+ return 250;
+ }
+
+ /**
+ * Close window. Note that the window's destructor is NOT called by this
+ * method, instead the GC is assumed to do the cleanup.
+ *
+ * @param window the window to remove
+ */
+ public final void closeWindow(final TWindow window) {
+ int z = window.getZ();
+ window.setZ(-1);
+ Collections.sort(windows);
+ windows.remove(0);
+ TWindow activeWindow = null;
+ for (TWindow w: windows) {
+ if (w.getZ() > z) {
+ w.setZ(w.getZ() - 1);
+ if (w.getZ() == 0) {
+ w.setActive(true);
+ assert (activeWindow == null);
+ activeWindow = w;
+ } else {
+ w.setActive(false);
+ }
+ }
+ }
+
+ // Perform window cleanup
+ window.onClose();
+
+ // Refresh screen
+ repaint = true;
+
+ /*
+ TODO
+
+
+ // Check if we are closing a TMessageBox or similar
+ if (secondaryEventReceiver !is null) {
+ assert(secondaryEventFiber !is null);
+
+ // Do not send events to the secondaryEventReceiver anymore, the
+ // window is closed.
+ secondaryEventReceiver = null;
+
+ // Special case: if this is called while executing on a
+ // secondaryEventFiber, call it so that widgetEventHandler() can
+ // terminate.
+ if (secondaryEventFiber.state == Fiber.State.HOLD) {
+ secondaryEventFiber.call();
+ }
+ secondaryEventFiber = null;
+
+ // Unfreeze the logic in handleEvent()
+ if (primaryEventFiber.state == Fiber.State.HOLD) {
+ primaryEventFiber.call();
+ }
+ }
+ */
+ }
+
+ /**
+ * Switch to the next window.
+ *
+ * @param forward if true, then switch to the next window in the list,
+ * otherwise switch to the previous window in the list
+ */
+ public final void switchWindow(final boolean forward) {
+ // Only switch if there are multiple windows
+ if (windows.size() < 2) {
+ return;
+ }
+
+ // Swap z/active between active window and the next in the list
+ int activeWindowI = -1;
+ for (int i = 0; i < windows.size(); i++) {
+ if (windows.get(i).getActive()) {
+ activeWindowI = i;
+ break;
+ }
+ }
+ assert (activeWindowI >= 0);
+
+ // Do not switch if a window is modal
+ if (windows.get(activeWindowI).isModal()) {
+ return;
+ }
+
+ int nextWindowI;
+ if (forward) {
+ nextWindowI = (activeWindowI + 1) % windows.size();
+ } else {
+ if (activeWindowI == 0) {
+ nextWindowI = windows.size() - 1;
+ } else {
+ nextWindowI = activeWindowI - 1;
+ }
+ }
+ windows.get(activeWindowI).setActive(false);
+ windows.get(activeWindowI).setZ(windows.get(nextWindowI).getZ());
+ windows.get(nextWindowI).setZ(0);
+ windows.get(nextWindowI).setActive(true);
+
+ // Refresh
+ repaint = true;
+ }
+
+ /**
+ * Add a window to my window list and make it active.
+ *
+ * @param window new window to add
+ */
+ public final void addWindow(final TWindow window) {
+ // Do not allow a modal window to spawn a non-modal window
+ if ((windows.size() > 0) && (windows.get(0).isModal())) {
+ assert (window.isModal());
+ }
+ for (TWindow w: windows) {
+ w.setActive(false);
+ w.setZ(w.getZ() + 1);
+ }
+ windows.add(window);
+ window.setActive(true);
+ window.setZ(0);
+ }
+
+ /**
+ * Check if there is a system-modal window on top.
+ *
+ * @return true if the active window is modal
+ */
+ private boolean modalWindowActive() {
+ if (windows.size() == 0) {
+ return false;
+ }
+ return windows.get(windows.size() - 1).isModal();
+ }
+
+ /**
+ * Check if a mouse event would hit either the active menu or any open
+ * sub-menus.
+ *
+ * @param mouse mouse event
+ * @return true if the mouse would hit the active menu or an open
+ * sub-menu
+ */
+ private boolean mouseOnMenu(final TMouseEvent mouse) {
+ assert (activeMenu != null);
+ List<TMenu> menus = new LinkedList<TMenu>(subMenus);
+ Collections.reverse(menus);
+ for (TMenu menu: menus) {
+ if (menu.mouseWouldHit(mouse)) {
+ return true;
+ }
+ }
+ return activeMenu.mouseWouldHit(mouse);
+ }
+
+ /**
+ * See if we need to switch window or activate the menu based on
+ * a mouse click.
+ *
+ * @param mouse mouse event
+ */
+ private void checkSwitchFocus(final TMouseEvent mouse) {
+
+ if ((mouse.getType() == TMouseEvent.Type.MOUSE_DOWN)
+ && (activeMenu != null)
+ && (mouse.getAbsoluteY() != 0)
+ && (!mouseOnMenu(mouse))
+ ) {
+ // They clicked outside the active menu, turn it off
+ activeMenu.setActive(false);
+ activeMenu = null;
+ for (TMenu menu: subMenus) {
+ menu.setActive(false);
+ }
+ subMenus.clear();
+ // Continue checks
+ }
+
+ // See if they hit the menu bar
+ if ((mouse.getType() == TMouseEvent.Type.MOUSE_DOWN)
+ && (mouse.getMouse1())
+ && (!modalWindowActive())
+ && (mouse.getAbsoluteY() == 0)
+ ) {
+
+ for (TMenu menu: subMenus) {
+ menu.setActive(false);
+ }
+ subMenus.clear();
+
+ // They selected the menu, go activate it
+ for (TMenu menu: menus) {
+ if ((mouse.getAbsoluteX() >= menu.getX())
+ && (mouse.getAbsoluteX() < menu.getX()
+ + menu.getTitle().length() + 2)
+ ) {
+ menu.setActive(true);
+ activeMenu = menu;
+ } else {
+ menu.setActive(false);
+ }
+ }
+ repaint = true;
+ return;
+ }
+
+ // See if they hit the menu bar
+ if ((mouse.getType() == TMouseEvent.Type.MOUSE_MOTION)
+ && (mouse.getMouse1())
+ && (activeMenu != null)
+ && (mouse.getAbsoluteY() == 0)
+ ) {
+
+ TMenu oldMenu = activeMenu;
+ for (TMenu menu: subMenus) {
+ menu.setActive(false);
+ }
+ subMenus.clear();
+
+ // See if we should switch menus
+ for (TMenu menu: menus) {
+ if ((mouse.getAbsoluteX() >= menu.getX())
+ && (mouse.getAbsoluteX() < menu.getX()
+ + menu.getTitle().length() + 2)
+ ) {
+ menu.setActive(true);
+ activeMenu = menu;
+ }
+ }
+ if (oldMenu != activeMenu) {
+ // They switched menus
+ oldMenu.setActive(false);
+ }
+ repaint = true;
+ return;
+ }
+
+ // Only switch if there are multiple windows
+ if (windows.size() < 2) {
+ return;
+ }
+
+ // Switch on the upclick
+ if (mouse.getType() != TMouseEvent.Type.MOUSE_UP) {
+ return;
+ }
+
+ Collections.sort(windows);
+ if (windows.get(0).isModal()) {
+ // Modal windows don't switch
+ return;
+ }
+
+ for (TWindow window: windows) {
+ assert (!window.isModal());
+ if (window.mouseWouldHit(mouse)) {
+ if (window == windows.get(0)) {
+ // Clicked on the same window, nothing to do
+ return;
+ }
+
+ // We will be switching to another window
+ assert (windows.get(0).getActive());
+ assert (!window.getActive());
+ windows.get(0).setActive(false);
+ windows.get(0).setZ(window.getZ());
+ window.setZ(0);
+ window.setActive(true);
+ repaint = true;
+ return;
+ }
+ }
+
+ // Clicked on the background, nothing to do
+ return;
+ }
+
+ /**
+ * Turn off the menu.
+ */
+ public final void closeMenu() {
+ if (activeMenu != null) {
+ activeMenu.setActive(false);
+ activeMenu = null;
+ for (TMenu menu: subMenus) {
+ menu.setActive(false);
+ }
+ subMenus.clear();
+ }
+ repaint = true;
+ }
+
+ /**
+ * Turn off a sub-menu.
+ */
+ public final void closeSubMenu() {
+ assert (activeMenu != null);
+ TMenu item = subMenus.get(subMenus.size() - 1);
+ assert (item != null);
+ item.setActive(false);
+ subMenus.remove(subMenus.size() - 1);
+ repaint = true;
+ }
+
+ /**
+ * Switch to the next menu.
+ *
+ * @param forward if true, then switch to the next menu in the list,
+ * otherwise switch to the previous menu in the list
+ */
+ public final void switchMenu(final boolean forward) {
+ assert (activeMenu != null);
+
+ for (TMenu menu: subMenus) {
+ menu.setActive(false);
+ }
+ subMenus.clear();
+
+ for (int i = 0; i < menus.size(); i++) {
+ if (activeMenu == menus.get(i)) {
+ if (forward) {
+ if (i < menus.size() - 1) {
+ i++;
+ }
+ } else {
+ if (i > 0) {
+ i--;
+ }
+ }
+ activeMenu.setActive(false);
+ activeMenu = menus.get(i);
+ activeMenu.setActive(true);
+ repaint = true;
+ return;
+ }
+ }
+ }
+
+ /**
+ * Method that TApplication subclasses can override to handle menu or
+ * posted command events.
+ *
+ * @param command command event
+ * @return if true, this event was consumed
+ */
+ protected boolean onCommand(final TCommandEvent command) {
+ /*
+ TODO
+ // Default: handle cmExit
+ if (command.equals(cmExit)) {
+ if (messageBox("Confirmation", "Exit application?",
+ TMessageBox.Type.YESNO).result == TMessageBox.Result.YES) {
+ quit = true;
+ }
+ repaint = true;
+ return true;
+ }
+
+ if (command.equals(cmShell)) {
+ openTerminal(0, 0, TWindow.Flag.RESIZABLE);
+ repaint = true;
+ return true;
+ }
+
+ if (command.equals(cmTile)) {
+ tileWindows();
+ repaint = true;
+ return true;
+ }
+ if (command.equals(cmCascade)) {
+ cascadeWindows();
+ repaint = true;
+ return true;
+ }
+ if (command.equals(cmCloseAll)) {
+ closeAllWindows();
+ repaint = true;
+ return true;
+ }
+ */
+ return false;
+ }
+
+ /**
+ * Method that TApplication subclasses can override to handle menu
+ * events.
+ *
+ * @param menu menu event
+ * @return if true, this event was consumed
+ */
+ protected boolean onMenu(final TMenuEvent menu) {
+
+ /*
+ TODO
+ // Default: handle MID_EXIT
+ if (menu.id == TMenu.MID_EXIT) {
+ if (messageBox("Confirmation", "Exit application?",
+ TMessageBox.Type.YESNO).result == TMessageBox.Result.YES) {
+ quit = true;
+ }
+ // System.err.printf("onMenu MID_EXIT result: quit = %s\n", quit);
+ repaint = true;
+ return true;
+ }
+
+ if (menu.id == TMenu.MID_SHELL) {
+ openTerminal(0, 0, TWindow.Flag.RESIZABLE);
+ repaint = true;
+ return true;
+ }
+
+ if (menu.id == TMenu.MID_TILE) {
+ tileWindows();
+ repaint = true;
+ return true;
+ }
+ if (menu.id == TMenu.MID_CASCADE) {
+ cascadeWindows();
+ repaint = true;
+ return true;
+ }
+ if (menu.id == TMenu.MID_CLOSE_ALL) {
+ closeAllWindows();
+ repaint = true;
+ return true;
+ }
+ */
+ return false;
+ }
+
+ /**
+ * Method that TApplication subclasses can override to handle keystrokes.
+ *
+ * @param keypress keystroke event
+ * @return if true, this event was consumed
+ */
+ protected boolean onKeypress(final TKeypressEvent keypress) {
+ // Default: only menu shortcuts
+
+ // Process Alt-F, Alt-E, etc. menu shortcut keys
+ if (!keypress.getKey().getIsKey()
+ && keypress.getKey().getAlt()
+ && !keypress.getKey().getCtrl()
+ && (activeMenu == null)
+ ) {
+
+ assert (subMenus.size() == 0);
+
+ for (TMenu menu: menus) {
+ if (Character.toLowerCase(menu.getMnemonic().getShortcut())
+ == Character.toLowerCase(keypress.getKey().getCh())
+ ) {
+ activeMenu = menu;
+ menu.setActive(true);
+ repaint = true;
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Add a keyboard accelerator to the global hash.
+ *
+ * @param item menu item this accelerator relates to
+ * @param keypress keypress that will dispatch a TMenuEvent
+ */
+ public final void addAccelerator(final TMenuItem item,
+ final TKeypress keypress) {
+ /*
+ TODO
+ assert((keypress in accelerators) is null);
+ accelerators[keypress] = item;
+ */
+ }
+
+ /**
+ * Recompute menu x positions based on their title length.
+ */
+ public final void recomputeMenuX() {
+ int x = 0;
+ for (TMenu menu: menus) {
+ menu.setX(x);
+ x += menu.getTitle().length() + 2;
+ }
+ }
+
+ /**
+ * Post an event to process and turn off the menu.
+ *
+ * @param event new event to add to the queue
+ */
+ public final void addMenuEvent(final TInputEvent event) {
+ /*
+ TODO - synchronize correctly
+ eventQueue ~= event;
+ */
+ closeMenu();
+ }
+
+ /**
+ * Add a sub-menu to the list of open sub-menus.
+ *
+ * @param menu sub-menu
+ */
+ public final void addSubMenu(final TMenu menu) {
+ subMenus.add(menu);