/**
- * Jexer - Java Text User Interface - demonstration program
- *
- * Version: $Id$
- *
- * Author: Kevin Lamonte, <a href="mailto:kevin.lamonte@gmail.com">kevin.lamonte@gmail.com</a>
+ * Jexer - Java Text User Interface
*
* License: LGPLv3 or later
*
- * Copyright: 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.
+ * 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
*
* 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;
/**
* Access to the physical screen, keyboard, and mouse.
*/
- public Backend backend;
+ private Backend backend;
/**
- * Actual mouse coordinate X
+ * Actual mouse coordinate X.
*/
private int mouseX;
/**
- * Actual mouse coordinate Y
+ * Actual mouse coordinate Y.
*/
private int mouseY;
/**
- * Event queue that will be drained by either primary or secondary Fiber
+ * Event queue that will be drained by either primary or secondary Fiber.
*/
private List<TInputEvent> eventQueue;
/**
* Windows and widgets pull colors from this ColorTheme.
*/
- public ColorTheme theme;
+ private ColorTheme theme;
+
+ /**
+ * Get the color theme.
+ *
+ * @return the theme
+ */
+ public final ColorTheme getTheme() {
+ return theme;
+ }
/**
* When true, exit the application.
public boolean flush = false;
/**
- * Y coordinate of the top edge of the desktop.
+ * 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.
*/
- static public final int desktopTop = 1;
+ public static final int desktopTop = 1;
/**
* Y coordinate of the bottom edge of the desktop.
* @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(InputStream input, OutputStream output) throws UnsupportedEncodingException {
+ public TApplication(final InputStream input,
+ final OutputStream output) throws UnsupportedEncodingException {
- backend = new ECMA48Backend(input, output);
- theme = new ColorTheme();
- desktopBottom = backend.screen.getHeight() - 1;
- eventQueue = new LinkedList<TInputEvent>();
+ 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.screen.getAttrXY(mouseX, mouseY);
- attr.foreColor = attr.foreColor.invert();
- attr.backColor = attr.backColor.invert();
- backend.screen.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;
+ 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.
*/
- final public 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.screen.clear();
-
- // Draw the background
- CellAttributes background = theme.getColor("tapplication.background");
- backend.screen.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.screen.resetClipping();
- backend.screen.hLineXY(0, 0, backend.screen.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.screen.hLineXY(x, 0, cast(int)m.title.length + 2, ' ',
- menuColor);
- backend.screen.putStrXY(x + 1, 0, m.title, menuColor);
- // Draw the highlight character
- backend.screen.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.screen.resetClipping();
- }
- x += m.title.length + 2;
- }
-
- foreach (m; subMenus) {
- // Reset the screen clipping so we can draw the next sub-menu.
- backend.screen.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.screen.putCursor(true, activeWidget.getCursorAbsoluteX(),
- activeWidget.getCursorAbsoluteY());
- cursor = true;
- }
- }
-
- // Kill the cursor
- if (cursor == false) {
- backend.screen.hideCursor();
- }
- */
-
- // Flush the screen contents
- backend.flushScreen();
-
- repaint = false;
- flush = false;
+ 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, using stdin and stdout
+ * Run this application until it exits.
*/
public final void run() {
- List<TInputEvent> events = new LinkedList<TInputEvent>();
-
- while (quit == false) {
- // 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();
+ 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();
}
/**
*
* @param events the input events to consume
*/
- private void metaHandleEvents(List<TInputEvent> events) {
-
- for (TInputEvent event: events) {
-
- /*
- System.err.printf(String.format("metaHandleEvents event: %s\n",
- event)); System.err.flush();
- */
-
- if (quit == true) {
- // Do no more processing if the application is already trying
- // to exit.
- return;
- }
-
- // DEBUG
- if (event instanceof TKeypressEvent) {
- TKeypressEvent keypress = (TKeypressEvent)event;
- if (keypress.key.equals(kbAltX)) {
- quit = true;
- return;
- }
- }
- // DEBUG
-
- // Special application-wide events -------------------------------
-
- // Abort everything
- if (event instanceof TCommandEvent) {
- TCommandEvent command = (TCommandEvent)event;
- if (command.cmd.equals(cmAbort)) {
- quit = true;
- return;
- }
- }
-
- // Screen resize
- if (event instanceof TResizeEvent) {
- TResizeEvent resize = (TResizeEvent)event;
- backend.screen.setDimensions(resize.width, resize.height);
- desktopBottom = backend.screen.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.x) || (mouseY != mouse.y)) {
- mouseX = mouse.x;
- mouseY = mouse.y;
- 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)
+ 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.key.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.x) || (mouseY != mouse.y)) {
+ mouseX = mouse.x;
+ mouseY = mouse.y;
+ 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();
- }
- */
+ /*
+ // 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();
+ }
+ */
}
/**
* @param timeout = initial (maximum) timeout
* @return number of milliseconds between now and the next timer event
*/
- protected int getSleepTime(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;
+ 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;
}
}
git://git.nikiroo.be / nikiroo-utils.git / blobdiff