X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fjexer%2Fbackend%2FTWindowBackend.java;h=f644b76ba4bf3d9e1642502ae330fc97146d1a5d;hb=505be508ae7d3fb48122be548b310a238cfb91eb;hp=7652d3f2300811f5e349916bc214f987714259f3;hpb=03df54ddc28af9afe263cd8b16eade8b6e856187;p=fanfix.git diff --git a/src/jexer/backend/TWindowBackend.java b/src/jexer/backend/TWindowBackend.java index 7652d3f..f644b76 100644 --- a/src/jexer/backend/TWindowBackend.java +++ b/src/jexer/backend/TWindowBackend.java @@ -3,7 +3,7 @@ * * The MIT License (MIT) * - * Copyright (C) 2017 Kevin Lamonte + * Copyright (C) 2019 Kevin Lamonte * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -28,15 +28,17 @@ */ package jexer.backend; -import java.util.LinkedList; +import java.util.ArrayList; import java.util.List; -import jexer.bits.CellAttributes; +import jexer.TApplication; +import jexer.TWindow; +import jexer.event.TCommandEvent; import jexer.event.TInputEvent; import jexer.event.TKeypressEvent; import jexer.event.TMouseEvent; -import jexer.TApplication; -import jexer.TWindow; +import jexer.event.TResizeEvent; +import static jexer.TCommand.*; /** * TWindowBackend uses a window in one TApplication to provide a backend for @@ -48,6 +50,10 @@ import jexer.TWindow; */ public class TWindowBackend extends TWindow implements Backend { + // ------------------------------------------------------------------------ + // Variables -------------------------------------------------------------- + // ------------------------------------------------------------------------ + /** * The listening object that run() wakes up on new input. */ @@ -65,19 +71,14 @@ public class TWindowBackend extends TWindow implements Backend { private List eventQueue; /** - * The screen to use. + * The screen this window is monitoring. */ private Screen otherScreen; /** - * The mouse X position as seen on the other screen. - */ - private int otherMouseX = -1; - - /** - * The mouse Y position as seen on the other screen. + * The application associated with otherScreen. */ - private int otherMouseY = -1; + private TApplication otherApplication; /** * The session information. @@ -85,32 +86,59 @@ public class TWindowBackend extends TWindow implements Backend { private SessionInfo sessionInfo; /** - * Set the object to sync to in draw(). - * - * @param drawLock the object to synchronize on + * OtherScreen provides a hook to notify TWindowBackend of screen size + * changes. */ - public void setDrawLock(final Object drawLock) { - this.drawLock = drawLock; - } + private class OtherScreen extends LogicalScreen { + + /** + * The TWindowBackend to notify. + */ + private TWindowBackend window; + + /** + * Public constructor. + */ + public OtherScreen(final TWindowBackend window) { + this.window = window; + } - /** - * Getter for the other application's screen. - * - * @return the Screen - */ - public Screen getOtherScreen() { - return otherScreen; - } + /** + * Resize the physical screen to match the logical screen dimensions. + */ + @Override + public void resizeToScreen() { + window.setWidth(getWidth() + 2); + window.setHeight(getHeight() + 2); + } + + /** + * Get the width of a character cell in pixels. + * + * @return the width in pixels of a character cell + */ + @Override + public int getTextWidth() { + return window.getScreen().getTextWidth(); + } + + /** + * Get the height of a character cell in pixels. + * + * @return the height in pixels of a character cell + */ + @Override + public int getTextHeight() { + return window.getScreen().getTextHeight(); + } - /** - * Getter for sessionInfo. - * - * @return the SessionInfo - */ - public final SessionInfo getSessionInfo() { - return sessionInfo; } + + // ------------------------------------------------------------------------ + // Constructors ----------------------------------------------------------- + // ------------------------------------------------------------------------ + /** * Public constructor. Window will be located at (0, 0). * @@ -128,11 +156,12 @@ public class TWindowBackend extends TWindow implements Backend { super(application, title, width, height); this.listener = listener; - eventQueue = new LinkedList(); + eventQueue = new ArrayList(); sessionInfo = new TSessionInfo(width, height); - otherScreen = new LogicalScreen(); + otherScreen = new OtherScreen(this); otherScreen.setDimensions(width - 2, height - 2); drawLock = otherScreen; + setHiddenMouse(true); } /** @@ -153,11 +182,12 @@ public class TWindowBackend extends TWindow implements Backend { super(application, title, width, height, flags); this.listener = listener; - eventQueue = new LinkedList(); + eventQueue = new ArrayList(); sessionInfo = new TSessionInfo(width, height); - otherScreen = new LogicalScreen(); + otherScreen = new OtherScreen(this); otherScreen.setDimensions(width - 2, height - 2); drawLock = otherScreen; + setHiddenMouse(true); } /** @@ -179,11 +209,12 @@ public class TWindowBackend extends TWindow implements Backend { super(application, title, x, y, width, height); this.listener = listener; - eventQueue = new LinkedList(); + eventQueue = new ArrayList(); sessionInfo = new TSessionInfo(width, height); - otherScreen = new LogicalScreen(); + otherScreen = new OtherScreen(this); otherScreen.setDimensions(width - 2, height - 2); drawLock = otherScreen; + setHiddenMouse(true); } /** @@ -207,105 +238,47 @@ public class TWindowBackend extends TWindow implements Backend { super(application, title, x, y, width, height, flags); this.listener = listener; - eventQueue = new LinkedList(); + eventQueue = new ArrayList(); sessionInfo = new TSessionInfo(width, height); - otherScreen = new LogicalScreen(); + otherScreen = new OtherScreen(this); otherScreen.setDimensions(width - 2, height - 2); drawLock = otherScreen; + setHiddenMouse(true); } - /** - * Subclasses must provide an implementation that syncs the logical - * screen to the physical device. - */ - public void flushScreen() { - getApplication().doRepaint(); - } + // ------------------------------------------------------------------------ + // Event handlers --------------------------------------------------------- + // ------------------------------------------------------------------------ /** - * Subclasses must provide an implementation to get keyboard, mouse, and - * screen resize events. + * Handle window/screen resize events. * - * @param queue list to append new events to - */ - public void getEvents(List queue) { - synchronized (eventQueue) { - if (eventQueue.size() > 0) { - synchronized (queue) { - queue.addAll(eventQueue); - } - eventQueue.clear(); - } - } - } - - /** - * Subclasses must provide an implementation that closes sockets, - * restores console, etc. - */ - public void shutdown() { - // NOP - } - - /** - * Set listener to a different Object. - * - * @param listener the new listening object that run() wakes up on new - * input - */ - public void setListener(final Object listener) { - this.listener = listener; - } - - /** - * Draw the foreground colors grid. + * @param event resize event */ @Override - public void draw() { - - // Sync on other screen, so that we do not draw in the middle of - // their screen update. - synchronized (drawLock) { - // Draw the box - super.draw(); - - // Draw every cell of the other screen - for (int y = 0; y < otherScreen.getHeight(); y++) { - for (int x = 0; x < otherScreen.getWidth(); x++) { - putCharXY(x + 1, y + 1, otherScreen.getCharXY(x, y)); + public void onResize(final TResizeEvent event) { + if (event.getType() == TResizeEvent.Type.WIDGET) { + int newWidth = event.getWidth() - 2; + int newHeight = event.getHeight() - 2; + if ((newWidth != otherScreen.getWidth()) + || (newHeight != otherScreen.getHeight()) + ) { + // I was resized, notify the screen I am watching to match my + // new size. + synchronized (eventQueue) { + eventQueue.add(new TResizeEvent(TResizeEvent.Type.SCREEN, + newWidth, newHeight)); + } + synchronized (listener) { + listener.notifyAll(); } } - - // If the mouse pointer is over the other window, draw its - // pointer again here. (Their TApplication drew it, then our - // TApplication drew it again (undo-ing it), so now we draw it a - // third time so that it is visible.) - if ((otherMouseX != -1) && (otherMouseY != -1)) { - CellAttributes attr = getAttrXY(otherMouseX, otherMouseY); - attr.setForeColor(attr.getForeColor().invert()); - attr.setBackColor(attr.getBackColor().invert()); - putAttrXY(otherMouseX, otherMouseY, attr, false); - } - - // If their cursor is visible, draw that here too. - if (otherScreen.isCursorVisible()) { - setCursorX(otherScreen.getCursorX() + 1); - setCursorY(otherScreen.getCursorY() + 1); - setCursorVisible(true); - } else { - setCursorVisible(false); - } + return; + } else { + super.onResize(event); } } - /** - * Subclasses should override this method to cleanup resources. This is - * called by application.closeWindow(). - */ - public void onClose() { - // TODO: send a screen disconnect - } - /** * Returns true if the mouse is currently in the otherScreen window. * @@ -382,17 +355,12 @@ public class TWindowBackend extends TWindow implements Backend { event.setY(mouse.getY() - 1); event.setAbsoluteX(event.getX()); event.setAbsoluteY(event.getY()); - otherMouseX = event.getX() + getX() + 1; - otherMouseY = event.getY() + getY() + 1; synchronized (eventQueue) { eventQueue.add(event); } synchronized (listener) { listener.notifyAll(); } - } else { - otherMouseX = -1; - otherMouseY = -1; } super.onMouseMotion(mouse); } @@ -413,4 +381,163 @@ public class TWindowBackend extends TWindow implements Backend { } } + // ------------------------------------------------------------------------ + // TWindow ---------------------------------------------------------------- + // ------------------------------------------------------------------------ + + /** + * Draw the foreground colors grid. + */ + @Override + public void draw() { + + // Sync on other screen, so that we do not draw in the middle of + // their screen update. + synchronized (drawLock) { + // Draw the box + super.draw(); + + // Draw every cell of the other screen + for (int y = 0; y < otherScreen.getHeight(); y++) { + for (int x = 0; x < otherScreen.getWidth(); x++) { + putCharXY(x + 1, y + 1, otherScreen.getCharXY(x, y)); + } + } + + // If their cursor is visible, draw that here too. + if (otherScreen.isCursorVisible()) { + setCursorX(otherScreen.getCursorX() + 1); + setCursorY(otherScreen.getCursorY() + 1); + setCursorVisible(true); + } else { + setCursorVisible(false); + } + } + + // Check if the other application has died. If so, unset hidden + // mouse. + if (otherApplication != null) { + if (otherApplication.isRunning() == false) { + setHiddenMouse(false); + } + } + + } + + /** + * Subclasses should override this method to cleanup resources. This is + * called by application.closeWindow(). + */ + @Override + public void onClose() { + synchronized (eventQueue) { + eventQueue.add(new TCommandEvent(cmBackendDisconnect)); + } + } + + // ------------------------------------------------------------------------ + // Backend ---------------------------------------------------------------- + // ------------------------------------------------------------------------ + + /** + * Getter for sessionInfo. + * + * @return the SessionInfo + */ + public final SessionInfo getSessionInfo() { + return sessionInfo; + } + + /** + * Subclasses must provide an implementation that syncs the logical + * screen to the physical device. + */ + public void flushScreen() { + getApplication().doRepaint(); + } + + /** + * Check if there are events in the queue. + * + * @return if true, getEvents() has something to return to the application + */ + public boolean hasEvents() { + synchronized (eventQueue) { + return (eventQueue.size() > 0); + } + } + + /** + * Subclasses must provide an implementation to get keyboard, mouse, and + * screen resize events. + * + * @param queue list to append new events to + */ + public void getEvents(List queue) { + synchronized (eventQueue) { + if (eventQueue.size() > 0) { + synchronized (queue) { + queue.addAll(eventQueue); + } + eventQueue.clear(); + } + } + } + + /** + * Subclasses must provide an implementation that closes sockets, + * restores console, etc. + */ + public void shutdown() { + // NOP + } + + /** + * Set listener to a different Object. + * + * @param listener the new listening object that run() wakes up on new + * input + */ + public void setListener(final Object listener) { + this.listener = listener; + } + + /** + * Reload backend options from System properties. + */ + public void reloadOptions() { + // NOP + } + + // ------------------------------------------------------------------------ + // TWindowBackend --------------------------------------------------------- + // ------------------------------------------------------------------------ + + /** + * Set the object to sync to in draw(). + * + * @param drawLock the object to synchronize on + */ + public void setDrawLock(final Object drawLock) { + this.drawLock = drawLock; + } + + /** + * Getter for the other application's screen. + * + * @return the Screen + */ + public Screen getOtherScreen() { + return otherScreen; + } + + /** + * Set the other screen's application. + * + * @param application the application driving the other screen + */ + public void setOtherApplication(final TApplication application) { + this.otherApplication = application; + } + }