*
* 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"),
import jexer.bits.Color;
import jexer.bits.GraphicsChars;
import jexer.bits.MnemonicString;
+import jexer.bits.StringUtils;
import jexer.event.TKeypressEvent;
import jexer.event.TMouseEvent;
-import static jexer.TKeypress.*;
+import static jexer.TKeypress.kbEnter;
+import static jexer.TKeypress.kbSpace;
/**
* TButton implements a simple button. To make the button do something, pass
*
* @see TAction#DO()
*/
-public final class TButton extends TWidget {
+public class TButton extends TWidget {
+
+ // ------------------------------------------------------------------------
+ // Variables --------------------------------------------------------------
+ // ------------------------------------------------------------------------
/**
* The shortcut and button text.
*/
private MnemonicString mnemonic;
- /**
- * Get the mnemonic string for this button.
- *
- * @return mnemonic string
- */
- public MnemonicString getMnemonic() {
- return mnemonic;
- }
-
/**
* Remember mouse state.
*/
private TAction action;
/**
- * The time at which dispatch() was called.
- */
- private long dispatchTime;
-
- /**
- * How long to animate dispatch of the event in millis.
+ * The background color used for the button "shadow", or null for "no
+ * shadow".
*/
- private static final long DISPATCH_TIME = 75;
+ private CellAttributes shadowColor;
- /**
- * Act as though the button was pressed. This is useful for other UI
- * elements to get the same action as if the user clicked the button.
- */
- public void dispatch() {
- if (action != null) {
- long now = System.currentTimeMillis();
- if (now - dispatchTime > DISPATCH_TIME) {
- action.DO();
- dispatchTime = now;
- }
- }
- }
+ // ------------------------------------------------------------------------
+ // Constructors -----------------------------------------------------------
+ // ------------------------------------------------------------------------
/**
* Private constructor.
setX(x);
setY(y);
- setHeight(2);
- setWidth(mnemonic.getRawLabel().length() + 3);
+ super.setHeight(2);
+ super.setWidth(StringUtils.width(mnemonic.getRawLabel()) + 3);
+
+ shadowColor = new CellAttributes();
+ shadowColor.setTo(getWindow().getBackground());
+ shadowColor.setForeColor(Color.BLACK);
+ shadowColor.setBold(false);
+
+ // Since we set dimensions after TWidget's constructor, we need to
+ // update the layout manager.
+ if (getParent().getLayoutManager() != null) {
+ getParent().getLayoutManager().remove(this);
+ getParent().getLayoutManager().add(this);
+ }
}
/**
this(parent, text, x, y);
this.action = action;
}
+
+ /**
+ * The action to call when the button is pressed.
+ **/
+ public TAction getAction() {
+ return action;
+ }
+
+ /**
+ * The action to call when the button is pressed.
+ **/
+ public void setAction(TAction action) {
+ this.action = action;
+ }
+
+ // ------------------------------------------------------------------------
+ // Event handlers ---------------------------------------------------------
+ // ------------------------------------------------------------------------
/**
* Returns true if the mouse is currently on the button.
return false;
}
- /**
- * Draw a button with a shadow.
- */
- @Override
- public void draw() {
- CellAttributes buttonColor;
- CellAttributes menuMnemonicColor;
- CellAttributes shadowColor = new CellAttributes();
- shadowColor.setTo(getWindow().getBackground());
- shadowColor.setForeColor(Color.BLACK);
- shadowColor.setBold(false);
-
- long now = System.currentTimeMillis();
- boolean inDispatch = false;
- if (now - dispatchTime < DISPATCH_TIME) {
- inDispatch = true;
- }
-
- if (!isEnabled()) {
- buttonColor = getTheme().getColor("tbutton.disabled");
- menuMnemonicColor = getTheme().getColor("tbutton.disabled");
- } else if (isAbsoluteActive()) {
- buttonColor = getTheme().getColor("tbutton.active");
- menuMnemonicColor = getTheme().getColor("tbutton.mnemonic.highlighted");
- } else {
- buttonColor = getTheme().getColor("tbutton.inactive");
- menuMnemonicColor = getTheme().getColor("tbutton.mnemonic");
- }
-
- if (inButtonPress || inDispatch) {
- getScreen().putCharXY(1, 0, ' ', buttonColor);
- getScreen().putStringXY(2, 0, mnemonic.getRawLabel(), buttonColor);
- getScreen().putCharXY(getWidth() - 1, 0, ' ', buttonColor);
- } else {
- getScreen().putCharXY(0, 0, ' ', buttonColor);
- getScreen().putStringXY(1, 0, mnemonic.getRawLabel(), buttonColor);
- getScreen().putCharXY(getWidth() - 2, 0, ' ', buttonColor);
-
- getScreen().putCharXY(getWidth() - 1, 0,
- GraphicsChars.CP437[0xDC], shadowColor);
- getScreen().hLineXY(1, 1, getWidth() - 1,
- GraphicsChars.CP437[0xDF], shadowColor);
- }
- if (mnemonic.getShortcutIdx() >= 0) {
- if (inButtonPress || inDispatch) {
- getScreen().putCharXY(2 + mnemonic.getShortcutIdx(), 0,
- mnemonic.getShortcut(), menuMnemonicColor);
- } else {
- getScreen().putCharXY(1 + mnemonic.getShortcutIdx(), 0,
- mnemonic.getShortcut(), menuMnemonicColor);
- }
-
- }
- }
-
/**
* Handle mouse button presses.
*
this.mouse = mouse;
if (inButtonPress && mouse.isMouse1()) {
- inButtonPress = false;
// Dispatch the event
dispatch();
}
super.onKeypress(keypress);
}
+ // ------------------------------------------------------------------------
+ // TWidget ----------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Override TWidget's width: we can only set width at construction time.
+ *
+ * @param width new widget width (ignored)
+ */
+ @Override
+ public void setWidth(final int width) {
+ // Do nothing
+ }
+
+ /**
+ * Override TWidget's height: we can only set height at construction
+ * time.
+ *
+ * @param height new widget height (ignored)
+ */
+ @Override
+ public void setHeight(final int height) {
+ // Do nothing
+ }
+
+ /**
+ * Draw a button with a shadow.
+ */
+ @Override
+ public void draw() {
+ CellAttributes buttonColor;
+ CellAttributes menuMnemonicColor;
+
+ if (!isEnabled()) {
+ buttonColor = getTheme().getColor("tbutton.disabled");
+ menuMnemonicColor = getTheme().getColor("tbutton.disabled");
+ } else if (isAbsoluteActive()) {
+ buttonColor = getTheme().getColor("tbutton.active");
+ menuMnemonicColor = getTheme().getColor("tbutton.mnemonic.highlighted");
+ } else {
+ buttonColor = getTheme().getColor("tbutton.inactive");
+ menuMnemonicColor = getTheme().getColor("tbutton.mnemonic");
+ }
+
+ if (inButtonPress) {
+ putCharXY(1, 0, ' ', buttonColor);
+ putStringXY(2, 0, mnemonic.getRawLabel(), buttonColor);
+ putCharXY(getWidth() - 1, 0, ' ', buttonColor);
+ } else {
+ putCharXY(0, 0, ' ', buttonColor);
+ putStringXY(1, 0, mnemonic.getRawLabel(), buttonColor);
+ putCharXY(getWidth() - 2, 0, ' ', buttonColor);
+
+ if (shadowColor != null) {
+ putCharXY(getWidth() - 1, 0,
+ GraphicsChars.CP437[0xDC], shadowColor);
+ hLineXY(1, 1, getWidth() - 1,
+ GraphicsChars.CP437[0xDF], shadowColor);
+ }
+ }
+ if (mnemonic.getScreenShortcutIdx() >= 0) {
+ if (inButtonPress) {
+ putCharXY(2 + mnemonic.getScreenShortcutIdx(), 0,
+ mnemonic.getShortcut(), menuMnemonicColor);
+ } else {
+ putCharXY(1 + mnemonic.getScreenShortcutIdx(), 0,
+ mnemonic.getShortcut(), menuMnemonicColor);
+ }
+ }
+ }
+
+ // ------------------------------------------------------------------------
+ // TButton ----------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Get the mnemonic string for this button.
+ *
+ * @return mnemonic string
+ */
+ public MnemonicString getMnemonic() {
+ return mnemonic;
+ }
+
+ /**
+ * Act as though the button was pressed. This is useful for other UI
+ * elements to get the same action as if the user clicked the button.
+ */
+ public void dispatch() {
+ if (action != null) {
+ action.DO(this);
+ inButtonPress = false;
+ }
+ }
+
+ /**
+ * Set the background color used for the button "shadow". If null, no
+ * shadow will be drawn.
+ *
+ * @param color the new background color, or null for no shadow
+ */
+ public void setShadowColor(final CellAttributes color) {
+ if (color != null) {
+ shadowColor = new CellAttributes();
+ shadowColor.setTo(color);
+ shadowColor.setForeColor(Color.BLACK);
+ shadowColor.setBold(false);
+ } else {
+ shadowColor = null;
+ }
+ }
+
}
git://git.nikiroo.be / fanfix.git / blobdiff