X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fjexer%2FTWidget.java;h=e8cd1a0e7e68a79f83d6de41f685a39aad379b81;hb=e23ea53820244957b17a7000c6d3e1ff586f1ef0;hp=6d5d147b3174ea39ab80da901dbc362a47c442b3;hpb=051e29138b18fb4b731a72f8727475b10e4c74e4;p=fanfix.git diff --git a/src/jexer/TWidget.java b/src/jexer/TWidget.java index 6d5d147..e8cd1a0 100644 --- a/src/jexer/TWidget.java +++ b/src/jexer/TWidget.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"), @@ -33,6 +33,8 @@ import java.util.List; import java.util.ArrayList; import jexer.backend.Screen; +import jexer.bits.Cell; +import jexer.bits.CellAttributes; import jexer.bits.ColorTheme; import jexer.event.TCommandEvent; import jexer.event.TInputEvent; @@ -180,8 +182,9 @@ public abstract class TWidget implements Comparable { this.window = parent.window; children = new ArrayList(); - // Do not add TStatusBars, they are drawn by TApplication + // Do not add TStatusBars, they are drawn by TApplication. if (this instanceof TStatusBar) { + // NOP } else { parent.addChild(this); } @@ -205,8 +208,9 @@ public abstract class TWidget implements Comparable { this.window = parent.window; children = new ArrayList(); - // Do not add TStatusBars, they are drawn by TApplication + // Do not add TStatusBars, they are drawn by TApplication. if (this instanceof TStatusBar) { + // NOP } else { parent.addChild(this); } @@ -241,6 +245,17 @@ public abstract class TWidget implements Comparable { // Event handlers --------------------------------------------------------- // ------------------------------------------------------------------------ + /** + * Subclasses should override this method to cleanup resources. This is + * called by TWindow.onClose(). + */ + protected void close() { + // Default: call close() on children. + for (TWidget w: getChildren()) { + w.close(); + } + } + /** * Check if a mouse press/release event coordinate is contained in this * widget. @@ -280,19 +295,20 @@ public abstract class TWidget implements Comparable { if ((children.size() == 0) || (this instanceof TTreeView) || (this instanceof TText) + || (this instanceof TComboBox) ) { // Defaults: // tab / shift-tab - switch to next/previous widget // left-arrow or up-arrow: same as shift-tab if ((keypress.equals(kbTab)) - || (keypress.equals(kbDown)) + || (keypress.equals(kbDown) && !(this instanceof TComboBox)) ) { parent.switchWidget(true); return; } else if ((keypress.equals(kbShiftTab)) || (keypress.equals(kbBackTab)) - || (keypress.equals(kbUp)) + || (keypress.equals(kbUp) && !(this instanceof TComboBox)) ) { parent.switchWidget(false); return; @@ -349,6 +365,17 @@ public abstract class TWidget implements Comparable { */ public void onMouseDown(final TMouseEvent mouse) { // Default: do nothing, pass to children instead + if (activeChild != null) { + if (activeChild.mouseWouldHit(mouse)) { + // Dispatch to the active child + + // Set x and y relative to the child's coordinates + mouse.setX(mouse.getAbsoluteX() - activeChild.getAbsoluteX()); + mouse.setY(mouse.getAbsoluteY() - activeChild.getAbsoluteY()); + activeChild.onMouseDown(mouse); + return; + } + } for (int i = children.size() - 1 ; i >= 0 ; i--) { TWidget widget = children.get(i); if (widget.mouseWouldHit(mouse)) { @@ -371,6 +398,17 @@ public abstract class TWidget implements Comparable { */ public void onMouseUp(final TMouseEvent mouse) { // Default: do nothing, pass to children instead + if (activeChild != null) { + if (activeChild.mouseWouldHit(mouse)) { + // Dispatch to the active child + + // Set x and y relative to the child's coordinates + mouse.setX(mouse.getAbsoluteX() - activeChild.getAbsoluteX()); + mouse.setY(mouse.getAbsoluteY() - activeChild.getAbsoluteY()); + activeChild.onMouseUp(mouse); + return; + } + } for (int i = children.size() - 1 ; i >= 0 ; i--) { TWidget widget = children.get(i); if (widget.mouseWouldHit(mouse)) { @@ -410,6 +448,17 @@ public abstract class TWidget implements Comparable { */ public void onMouseDoubleClick(final TMouseEvent mouse) { // Default: do nothing, pass to children instead + if (activeChild != null) { + if (activeChild.mouseWouldHit(mouse)) { + // Dispatch to the active child + + // Set x and y relative to the child's coordinates + mouse.setX(mouse.getAbsoluteX() - activeChild.getAbsoluteX()); + mouse.setY(mouse.getAbsoluteY() - activeChild.getAbsoluteY()); + activeChild.onMouseDoubleClick(mouse); + return; + } + } for (int i = children.size() - 1 ; i >= 0 ; i--) { TWidget widget = children.get(i); if (widget.mouseWouldHit(mouse)) { @@ -931,7 +980,7 @@ public abstract class TWidget implements Comparable { * * @return the ColorTheme */ - public final ColorTheme getTheme() { + protected final ColorTheme getTheme() { return window.getApplication().getTheme(); } @@ -944,9 +993,9 @@ public abstract class TWidget implements Comparable { } /** - * Called by parent to render to TWindow. + * Called by parent to render to TWindow. Note package private access. */ - public final void drawChildren() { + final void drawChildren() { // Set my clipping rectangle assert (window != null); assert (getScreen() != null); @@ -993,18 +1042,22 @@ public abstract class TWidget implements Comparable { // Draw me draw(); - // Continue down the chain + // Continue down the chain. Draw the active child last so that it + // is on top. for (TWidget widget: children) { - if (widget.isVisible()) { + if (widget.isVisible() && (widget != activeChild)) { widget.drawChildren(); } } + if (activeChild != null) { + activeChild.drawChildren(); + } } /** * Repaint the screen on the next update. */ - public final void doRepaint() { + protected final void doRepaint() { window.getApplication().doRepaint(); } @@ -1045,12 +1098,19 @@ public abstract class TWidget implements Comparable { return; } - if (child != activeChild) { - if (activeChild != null) { - activeChild.active = false; + if (children.size() == 1) { + if (children.get(0).enabled == true) { + child.active = true; + activeChild = child; + } + } else { + if (child != activeChild) { + if (activeChild != null) { + activeChild.active = false; + } + child.active = true; + activeChild = child; } - child.active = true; - activeChild = child; } } @@ -1061,6 +1121,14 @@ public abstract class TWidget implements Comparable { * isn't enabled, then the next enabled child will be activated. */ public final void activate(final int tabOrder) { + if (children.size() == 1) { + if (children.get(0).enabled == true) { + children.get(0).active = true; + activeChild = children.get(0); + } + return; + } + if (activeChild == null) { return; } @@ -1091,11 +1159,25 @@ public abstract class TWidget implements Comparable { */ public final void switchWidget(final boolean forward) { - // Only switch if there are multiple enabled widgets - if ((children.size() < 2) || (activeChild == null)) { + // No children: do nothing. + if (children.size() == 0) { + return; + } + + // If there is only one child, make it active if it is enabled. + if (children.size() == 1) { + if (children.get(0).enabled == true) { + activeChild = children.get(0); + activeChild.active = true; + } else { + children.get(0).active = false; + activeChild = null; + } return; } + // Two or more children: go forward or backward to the next enabled + // child. int tabOrder = activeChild.tabOrder; do { if (forward) { @@ -1157,6 +1239,204 @@ public abstract class TWidget implements Comparable { return this; } + // ------------------------------------------------------------------------ + // Passthru for Screen functions ------------------------------------------ + // ------------------------------------------------------------------------ + + /** + * Get the attributes at one location. + * + * @param x column coordinate. 0 is the left-most column. + * @param y row coordinate. 0 is the top-most row. + * @return attributes at (x, y) + */ + protected final CellAttributes getAttrXY(final int x, final int y) { + return getScreen().getAttrXY(x, y); + } + + /** + * Set the attributes at one location. + * + * @param x column coordinate. 0 is the left-most column. + * @param y row coordinate. 0 is the top-most row. + * @param attr attributes to use (bold, foreColor, backColor) + */ + protected final void putAttrXY(final int x, final int y, + final CellAttributes attr) { + + getScreen().putAttrXY(x, y, attr); + } + + /** + * Set the attributes at one location. + * + * @param x column coordinate. 0 is the left-most column. + * @param y row coordinate. 0 is the top-most row. + * @param attr attributes to use (bold, foreColor, backColor) + * @param clip if true, honor clipping/offset + */ + protected final void putAttrXY(final int x, final int y, + final CellAttributes attr, final boolean clip) { + + getScreen().putAttrXY(x, y, attr, clip); + } + + /** + * Fill the entire screen with one character with attributes. + * + * @param ch character to draw + * @param attr attributes to use (bold, foreColor, backColor) + */ + protected final void putAll(final char ch, final CellAttributes attr) { + getScreen().putAll(ch, attr); + } + + /** + * Render one character with attributes. + * + * @param x column coordinate. 0 is the left-most column. + * @param y row coordinate. 0 is the top-most row. + * @param ch character + attributes to draw + */ + protected final void putCharXY(final int x, final int y, final Cell ch) { + getScreen().putCharXY(x, y, ch); + } + + /** + * Render one character with attributes. + * + * @param x column coordinate. 0 is the left-most column. + * @param y row coordinate. 0 is the top-most row. + * @param ch character to draw + * @param attr attributes to use (bold, foreColor, backColor) + */ + protected final void putCharXY(final int x, final int y, final char ch, + final CellAttributes attr) { + + getScreen().putCharXY(x, y, ch, attr); + } + + /** + * Render one character without changing the underlying attributes. + * + * @param x column coordinate. 0 is the left-most column. + * @param y row coordinate. 0 is the top-most row. + * @param ch character to draw + */ + protected final void putCharXY(final int x, final int y, final char ch) { + getScreen().putCharXY(x, y, ch); + } + + /** + * Render a string. Does not wrap if the string exceeds the line. + * + * @param x column coordinate. 0 is the left-most column. + * @param y row coordinate. 0 is the top-most row. + * @param str string to draw + * @param attr attributes to use (bold, foreColor, backColor) + */ + protected final void putStringXY(final int x, final int y, final String str, + final CellAttributes attr) { + + getScreen().putStringXY(x, y, str, attr); + } + + /** + * Render a string without changing the underlying attribute. Does not + * wrap if the string exceeds the line. + * + * @param x column coordinate. 0 is the left-most column. + * @param y row coordinate. 0 is the top-most row. + * @param str string to draw + */ + protected final void putStringXY(final int x, final int y, final String str) { + getScreen().putStringXY(x, y, str); + } + + /** + * Draw a vertical line from (x, y) to (x, y + n). + * + * @param x column coordinate. 0 is the left-most column. + * @param y row coordinate. 0 is the top-most row. + * @param n number of characters to draw + * @param ch character to draw + * @param attr attributes to use (bold, foreColor, backColor) + */ + protected final void vLineXY(final int x, final int y, final int n, + final char ch, final CellAttributes attr) { + + getScreen().vLineXY(x, y, n, ch, attr); + } + + /** + * Draw a horizontal line from (x, y) to (x + n, y). + * + * @param x column coordinate. 0 is the left-most column. + * @param y row coordinate. 0 is the top-most row. + * @param n number of characters to draw + * @param ch character to draw + * @param attr attributes to use (bold, foreColor, backColor) + */ + protected final void hLineXY(final int x, final int y, final int n, + final char ch, final CellAttributes attr) { + + getScreen().hLineXY(x, y, n, ch, attr); + } + + /** + * Draw a box with a border and empty background. + * + * @param left left column of box. 0 is the left-most row. + * @param top top row of the box. 0 is the top-most row. + * @param right right column of box + * @param bottom bottom row of the box + * @param border attributes to use for the border + * @param background attributes to use for the background + */ + protected final void drawBox(final int left, final int top, + final int right, final int bottom, + final CellAttributes border, final CellAttributes background) { + + getScreen().drawBox(left, top, right, bottom, border, background); + } + + /** + * Draw a box with a border and empty background. + * + * @param left left column of box. 0 is the left-most row. + * @param top top row of the box. 0 is the top-most row. + * @param right right column of box + * @param bottom bottom row of the box + * @param border attributes to use for the border + * @param background attributes to use for the background + * @param borderType if 1, draw a single-line border; if 2, draw a + * double-line border; if 3, draw double-line top/bottom edges and + * single-line left/right edges (like Qmodem) + * @param shadow if true, draw a "shadow" on the box + */ + protected final void drawBox(final int left, final int top, + final int right, final int bottom, + final CellAttributes border, final CellAttributes background, + final int borderType, final boolean shadow) { + + getScreen().drawBox(left, top, right, bottom, border, background, + borderType, shadow); + } + + /** + * Draw a box shadow. + * + * @param left left column of box. 0 is the left-most row. + * @param top top row of the box. 0 is the top-most row. + * @param right right column of box + * @param bottom bottom row of the box + */ + protected final void drawBoxShadow(final int left, final int top, + final int right, final int bottom) { + + getScreen().drawBoxShadow(left, top, right, bottom); + } + // ------------------------------------------------------------------------ // Other TWidget constructors --------------------------------------------- // ------------------------------------------------------------------------ @@ -1579,6 +1859,17 @@ public abstract class TWidget implements Comparable { return getApplication().fileOpenBox(path); } + /** + * Convenience function to spawn a file save box. + * + * @param path path of selected file + * @return the result of the new file open box + * @throws IOException if a java.io operation throws + */ + public final String fileSaveBox(final String path) throws IOException { + return getApplication().fileOpenBox(path, TFileOpenBox.Type.SAVE); + } + /** * Convenience function to spawn a file open box. * @@ -1592,6 +1883,41 @@ public abstract class TWidget implements Comparable { return getApplication().fileOpenBox(path, type); } + + /** + * Convenience function to spawn a file open box. + * + * @param path path of selected file + * @param type one of the Type constants + * @param filter a string that files must match to be displayed + * @return the result of the new file open box + * @throws IOException of a java.io operation throws + */ + public final String fileOpenBox(final String path, + final TFileOpenBox.Type type, final String filter) throws IOException { + + ArrayList filters = new ArrayList(); + filters.add(filter); + + return getApplication().fileOpenBox(path, type, filters); + } + + /** + * Convenience function to spawn a file open box. + * + * @param path path of selected file + * @param type one of the Type constants + * @param filters a list of strings that files must match to be displayed + * @return the result of the new file open box + * @throws IOException of a java.io operation throws + */ + public final String fileOpenBox(final String path, + final TFileOpenBox.Type type, + final List filters) throws IOException { + + return getApplication().fileOpenBox(path, type, filters); + } + /** * Convenience function to add a directory list to this container/window. * @@ -1616,7 +1942,8 @@ public abstract class TWidget implements Comparable { * @param y row relative to parent * @param width width of text area * @param height height of text area - * @param action action to perform when an item is selected + * @param action action to perform when an item is selected (enter or + * double-click) * @return the new directory list */ public final TDirectoryList addDirectoryList(final String path, final int x, @@ -1628,6 +1955,51 @@ public abstract class TWidget implements Comparable { /** * Convenience function to add a directory list to this container/window. * + * @param path directory path, must be a directory + * @param x column relative to parent + * @param y row relative to parent + * @param width width of text area + * @param height height of text area + * @param action action to perform when an item is selected (enter or + * double-click) + * @param singleClickAction action to perform when an item is selected + * (single-click) + * @return the new directory list + */ + public final TDirectoryList addDirectoryList(final String path, final int x, + final int y, final int width, final int height, final TAction action, + final TAction singleClickAction) { + + return new TDirectoryList(this, path, x, y, width, height, action, + singleClickAction); + } + + /** + * Convenience function to add a directory list to this container/window. + * + * @param path directory path, must be a directory + * @param x column relative to parent + * @param y row relative to parent + * @param width width of text area + * @param height height of text area + * @param action action to perform when an item is selected (enter or + * double-click) + * @param singleClickAction action to perform when an item is selected + * (single-click) + * @param filters a list of strings that files must match to be displayed + * @return the new directory list + */ + public final TDirectoryList addDirectoryList(final String path, final int x, + final int y, final int width, final int height, final TAction action, + final TAction singleClickAction, final List filters) { + + return new TDirectoryList(this, path, x, y, width, height, action, + singleClickAction, filters); + } + + /** + * Convenience function to add a list to this container/window. + * * @param strings list of strings to show * @param x column relative to parent * @param y row relative to parent @@ -1642,7 +2014,7 @@ public abstract class TWidget implements Comparable { } /** - * Convenience function to add a directory list to this container/window. + * Convenience function to add a list to this container/window. * * @param strings list of strings to show * @param x column relative to parent @@ -1660,7 +2032,7 @@ public abstract class TWidget implements Comparable { } /** - * Convenience function to add a directory list to this container/window. + * Convenience function to add a list to this container/window. * * @param strings list of strings to show * @param x column relative to parent