+++ /dev/null
-/**
- * Jexer - Java Text User Interface
- *
- * License: LGPLv3 or later
- *
- * This module is licensed under the GNU Lesser General Public License
- * Version 3. Please see the file "COPYING" in this directory for more
- * information about the GNU Lesser General Public License Version 3.
- *
- * Copyright (C) 2015 Kevin Lamonte
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 3 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see
- * http://www.gnu.org/licenses/, or write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * @author Kevin Lamonte [kevin.lamonte@gmail.com]
- * @version 1
- */
-package jexer;
-
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.io.UnsupportedEncodingException;
-import java.util.LinkedList;
-import java.util.List;
-
-import jexer.bits.CellAttributes;
-import jexer.bits.ColorTheme;
-import jexer.bits.GraphicsChars;
-import jexer.event.TCommandEvent;
-import jexer.event.TInputEvent;
-import jexer.event.TKeypressEvent;
-import jexer.event.TMouseEvent;
-import jexer.event.TResizeEvent;
-import jexer.backend.Backend;
-import jexer.backend.ECMA48Backend;
-import jexer.io.Screen;
-import static jexer.TCommand.*;
-import static jexer.TKeypress.*;
-
-/**
- * TApplication sets up a full Text User Interface application.
- */
-public class TApplication {
-
- /**
- * Access to the physical screen, keyboard, and mouse.
- */
- private Backend backend;
-
- /**
- * Get the Screen.
- *
- * @return the Screen
- */
- public final Screen getScreen() {
- return backend.getScreen();
- }
-
- /**
- * Actual mouse coordinate X.
- */
- private int mouseX;
-
- /**
- * Actual mouse coordinate Y.
- */
- private int mouseY;
-
- /**
- * Event queue that will be drained by either primary or secondary Fiber.
- */
- private List<TInputEvent> eventQueue;
-
- /**
- * Windows and widgets pull colors from this ColorTheme.
- */
- private ColorTheme theme;
-
- /**
- * Get the color theme.
- *
- * @return the theme
- */
- public final ColorTheme getTheme() {
- return theme;
- }
-
- /**
- * When true, exit the application.
- */
- private boolean quit = false;
-
- /**
- * When true, repaint the entire screen.
- */
- private boolean repaint = true;
-
- /**
- * Request full repaint on next screen refresh.
- */
- public void setRepaint() {
- repaint = true;
- }
-
- /**
- * When true, just flush updates from the screen.
- */
- private boolean flush = false;
-
- /**
- * Y coordinate of the top edge of the desktop. For now this is a
- * constant. Someday it would be nice to have a multi-line menu or
- * toolbars.
- */
- private static final int desktopTop = 1;
-
- /**
- * Get Y coordinate of the top edge of the desktop.
- *
- * @return Y coordinate of the top edge of the desktop
- */
- public final int getDesktopTop() {
- return desktopTop;
- }
-
- /**
- * Y coordinate of the bottom edge of the desktop.
- */
- private int desktopBottom;
-
- /**
- * Get Y coordinate of the bottom edge of the desktop.
- *
- * @return Y coordinate of the bottom edge of the desktop
- */
- public final int getDesktopBottom() {
- return desktopBottom;
- }
-
- /**
- * Public constructor.
- *
- * @param input an InputStream connected to the remote user, or null for
- * System.in. If System.in is used, then on non-Windows systems it will
- * be put in raw mode; shutdown() will (blindly!) put System.in in cooked
- * mode. input is always converted to a Reader with UTF-8 encoding.
- * @param output an OutputStream connected to the remote user, or null
- * for System.out. output is always converted to a Writer with UTF-8
- * encoding.
- * @throws UnsupportedEncodingException if an exception is thrown when
- * creating the InputStreamReader
- */
- public TApplication(final InputStream input,
- final OutputStream output) throws UnsupportedEncodingException {
-
- backend = new ECMA48Backend(input, output);
- theme = new ColorTheme();
- desktopBottom = backend.getScreen().getHeight() - 1;
- eventQueue = new LinkedList<TInputEvent>();
- }
-
- /**
- * Invert the cell at the mouse pointer position.
- */
- private void drawMouse() {
- CellAttributes attr = backend.getScreen().getAttrXY(mouseX, mouseY);
- attr.setForeColor(attr.getForeColor().invert());
- attr.setBackColor(attr.getBackColor().invert());
- backend.getScreen().putAttrXY(mouseX, mouseY, attr, false);
- flush = true;
-
- /*
- if (windows.length == 0) {
- repaint = true;
- }
- */
- // TODO: remove this repaint after the above if (windows.length == 0)
- // can be used again.
- repaint = true;
- }
-
- /**
- * Draw everything.
- */
- public final void drawAll() {
- if ((flush) && (!repaint)) {
- backend.flushScreen();
- flush = false;
- return;
- }
-
- if (!repaint) {
- return;
- }
-
- // If true, the cursor is not visible
- boolean cursor = false;
-
- // Start with a clean screen
- backend.getScreen().clear();
-
- // Draw the background
- CellAttributes background = theme.getColor("tapplication.background");
- backend.getScreen().putAll(GraphicsChars.HATCH, background);
-
- /*
- // Draw each window in reverse Z order
- TWindow [] sorted = windows.dup;
- sorted.sort.reverse;
- foreach (w; sorted) {
- w.drawChildren();
- }
-
- // Draw the blank menubar line - reset the screen clipping first so
- // it won't trim it out.
- backend.getScreen().resetClipping();
- backend.getScreen().hLineXY(0, 0, backend.getScreen().getWidth(), ' ',
- theme.getColor("tmenu"));
- // Now draw the menus.
- int x = 1;
- foreach (m; menus) {
- CellAttributes menuColor;
- CellAttributes menuMnemonicColor;
- if (m.active) {
- menuColor = theme.getColor("tmenu.highlighted");
- menuMnemonicColor = theme.getColor("tmenu.mnemonic.highlighted");
- } else {
- menuColor = theme.getColor("tmenu");
- menuMnemonicColor = theme.getColor("tmenu.mnemonic");
- }
- // Draw the menu title
- backend.getScreen().hLineXY(x, 0, cast(int)m.title.length + 2, ' ',
- menuColor);
- backend.getScreen().putStrXY(x + 1, 0, m.title, menuColor);
- // Draw the highlight character
- backend.getScreen().putCharXY(x + 1 + m.mnemonic.shortcutIdx, 0,
- m.mnemonic.shortcut, menuMnemonicColor);
-
- if (m.active) {
- m.drawChildren();
- // Reset the screen clipping so we can draw the next title.
- backend.getScreen().resetClipping();
- }
- x += m.title.length + 2;
- }
-
- foreach (m; subMenus) {
- // Reset the screen clipping so we can draw the next sub-menu.
- backend.getScreen().resetClipping();
- m.drawChildren();
- }
- */
-
- // Draw the mouse pointer
- drawMouse();
-
- /*
- // Place the cursor if it is visible
- TWidget activeWidget = null;
- if (sorted.length > 0) {
- activeWidget = sorted[$ - 1].getActiveChild();
- if (activeWidget.hasCursor) {
- backend.getScreen().putCursor(true, activeWidget.getCursorAbsoluteX(),
- activeWidget.getCursorAbsoluteY());
- cursor = true;
- }
- }
-
- // Kill the cursor
- if (cursor == false) {
- backend.getScreen().hideCursor();
- }
- */
-
- // Flush the screen contents
- backend.flushScreen();
-
- repaint = false;
- flush = false;
- }
-
- /**
- * Run this application until it exits.
- */
- public final void run() {
- List<TInputEvent> events = new LinkedList<TInputEvent>();
-
- while (!quit) {
- // Timeout is in milliseconds, so default timeout after 1 second
- // of inactivity.
- int timeout = getSleepTime(1000);
-
- if (eventQueue.size() > 0) {
- // Do not wait if there are definitely events waiting to be
- // processed or a screen redraw to do.
- timeout = 0;
- }
-
- // Pull any pending input events
- backend.getEvents(events, timeout);
- metaHandleEvents(events);
- events.clear();
-
- // Process timers and call doIdle()'s
- doIdle();
-
- // Update the screen
- drawAll();
- }
-
- /*
-
- // Shutdown the fibers
- eventQueue.length = 0;
- if (secondaryEventFiber !is null) {
- assert(secondaryEventReceiver !is null);
- secondaryEventReceiver = null;
- if (secondaryEventFiber.state == Fiber.State.HOLD) {
- // Wake up the secondary handler so that it can exit.
- secondaryEventFiber.call();
- }
- }
-
- if (primaryEventFiber.state == Fiber.State.HOLD) {
- // Wake up the primary handler so that it can exit.
- primaryEventFiber.call();
- }
- */
-
- backend.shutdown();
- }
-
- /**
- * Peek at certain application-level events, add to eventQueue, and wake
- * up the consuming Fiber.
- *
- * @param events the input events to consume
- */
- private void metaHandleEvents(final List<TInputEvent> events) {
-
- for (TInputEvent event: events) {
-
- /*
- System.err.printf(String.format("metaHandleEvents event: %s\n",
- event)); System.err.flush();
- */
-
- if (quit) {
- // Do no more processing if the application is already trying
- // to exit.
- return;
- }
-
- // DEBUG
- if (event instanceof TKeypressEvent) {
- TKeypressEvent keypress = (TKeypressEvent) event;
- if (keypress.equals(kbAltX)) {
- quit = true;
- return;
- }
- }
- // DEBUG
-
- // Special application-wide events -------------------------------
-
- // Abort everything
- if (event instanceof TCommandEvent) {
- TCommandEvent command = (TCommandEvent) event;
- if (command.getCmd().equals(cmAbort)) {
- quit = true;
- return;
- }
- }
-
- // Screen resize
- if (event instanceof TResizeEvent) {
- TResizeEvent resize = (TResizeEvent) event;
- backend.getScreen().setDimensions(resize.getWidth(),
- resize.getHeight());
- desktopBottom = backend.getScreen().getHeight() - 1;
- repaint = true;
- mouseX = 0;
- mouseY = 0;
- continue;
- }
-
- // Peek at the mouse position
- if (event instanceof TMouseEvent) {
- TMouseEvent mouse = (TMouseEvent) event;
- if ((mouseX != mouse.getX()) || (mouseY != mouse.getY())) {
- mouseX = mouse.getX();
- mouseY = mouse.getY();
- drawMouse();
- }
- }
-
- /*
-
- // Put into the main queue
- addEvent(event);
-
- // Have one of the two consumer Fibers peel the events off
- // the queue.
- if (secondaryEventFiber !is null) {
- assert(secondaryEventFiber.state == Fiber.State.HOLD);
-
- // Wake up the secondary handler for these events
- secondaryEventFiber.call();
- } else {
- assert(primaryEventFiber.state == Fiber.State.HOLD);
-
- // Wake up the primary handler for these events
- primaryEventFiber.call();
- }
- */
-
- } // for (TInputEvent event: events)
-
- }
-
- /**
- * Do stuff when there is no user input.
- */
- private void doIdle() {
- /*
- // Now run any timers that have timed out
- auto now = Clock.currTime;
- TTimer [] keepTimers;
- foreach (t; timers) {
- if (t.nextTick < now) {
- t.tick();
- if (t.recurring == true) {
- keepTimers ~= t;
- }
- } else {
- keepTimers ~= t;
- }
- }
- timers = keepTimers;
-
- // Call onIdle's
- foreach (w; windows) {
- w.onIdle();
- }
- */
- }
-
- /**
- * Get the amount of time I can sleep before missing a Timer tick.
- *
- * @param timeout = initial (maximum) timeout
- * @return number of milliseconds between now and the next timer event
- */
- 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) {
- /*
- TODO
-
- uint z = window.z;
- window.z = -1;
- windows.sort;
- windows = windows[1 .. $];
- TWindow activeWindow = null;
- foreach (w; windows) {
- if (w.z > z) {
- w.z--;
- if (w.z == 0) {
- w.active = true;
- assert(activeWindow is null);
- activeWindow = w;
- } else {
- w.active = false;
- }
- }
- }
-
- // Perform window cleanup
- window.onClose();
-
- // Refresh screen
- repaint = true;
-
- // 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) {
- /*
- TODO
-
- // Only switch if there are multiple windows
- if (windows.length < 2) {
- return;
- }
-
- // Swap z/active between active window and the next in the
- // list
- ptrdiff_t activeWindowI = -1;
- for (auto i = 0; i < windows.length; i++) {
- if (windows[i].active) {
- activeWindowI = i;
- break;
- }
- }
- assert(activeWindowI >= 0);
-
- // Do not switch if a window is modal
- if (windows[activeWindowI].isModal()) {
- return;
- }
-
- size_t nextWindowI;
- if (forward) {
- nextWindowI = (activeWindowI + 1) % windows.length;
- } else {
- if (activeWindowI == 0) {
- nextWindowI = windows.length - 1;
- } else {
- nextWindowI = activeWindowI - 1;
- }
- }
- windows[activeWindowI].active = false;
- windows[activeWindowI].z = windows[nextWindowI].z;
- windows[nextWindowI].z = 0;
- windows[nextWindowI].active = 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) {
- /*
- TODO
- // Do not allow a modal window to spawn a non-modal window
- if ((windows.length > 0) && (windows[0].isModal())) {
- assert(window.isModal());
- }
- foreach (w; windows) {
- w.active = false;
- w.z++;
- }
- windows ~= window;
- window.active = true;
- window.z = 0;
- */
- }
-
-
-}
git://git.nikiroo.be / fanfix.git / blobdiff