+++ /dev/null
-/*
- * Jexer - Java Text User Interface
- *
- * The MIT License (MIT)
- *
- * 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"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * @author Kevin Lamonte [kevin.lamonte@gmail.com]
- * @version 1
- */
-package jexer;
-
-import jexer.bits.CellAttributes;
-import jexer.bits.GraphicsChars;
-import jexer.event.TMenuEvent;
-import jexer.event.TMouseEvent;
-import jexer.event.TResizeEvent;
-import jexer.menu.TMenu;
-
-/**
- * TSplitPane contains two widgets with a draggable horizontal or vertical
- * bar between them.
- */
-public class TSplitPane extends TWidget {
-
- // ------------------------------------------------------------------------
- // Variables --------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * If true, split vertically. If false, split horizontally.
- */
- private boolean vertical = true;
-
- /**
- * The location of the split bar, either as a column number for vertical
- * split or a row number for horizontal split.
- */
- private int split = 0;
-
- /**
- * The widget on the left side.
- */
- private TWidget left;
-
- /**
- * The widget on the right side.
- */
- private TWidget right;
-
- /**
- * The widget on the top side.
- */
- private TWidget top;
-
- /**
- * The widget on the bottom side.
- */
- private TWidget bottom;
-
- /**
- * If true, we are in the middle of a split move.
- */
- private boolean inSplitMove = false;
-
- /**
- * The last seen mouse position.
- */
- private TMouseEvent mouse;
-
- // ------------------------------------------------------------------------
- // Constructors -----------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Public constructor.
- *
- * @param parent parent widget
- * @param x column relative to parent
- * @param y row relative to parent
- * @param width width of widget
- * @param height height of widget
- * @param vertical if true, split vertically
- */
- public TSplitPane(final TWidget parent, final int x, final int y,
- final int width, final int height, final boolean vertical) {
-
- super(parent, x, y, width, height);
-
- this.vertical = vertical;
- center();
- }
-
- // ------------------------------------------------------------------------
- // Event handlers ---------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Handle window/screen resize events.
- *
- * @param event resize event
- */
- @Override
- public void onResize(final TResizeEvent event) {
- if (event.getType() == TResizeEvent.Type.WIDGET) {
- // Resize me
- super.onResize(event);
-
- if (vertical && (split >= getWidth() - 2)) {
- center();
- } else if (!vertical && (split >= getHeight() - 2)) {
- center();
- } else {
- layoutChildren();
- }
- }
- }
-
- /**
- * Handle mouse button presses.
- *
- * @param mouse mouse button event
- */
- @Override
- public void onMouseDown(final TMouseEvent mouse) {
- this.mouse = mouse;
-
- inSplitMove = false;
-
- if (mouse.isMouse1()) {
- if (vertical) {
- inSplitMove = (mouse.getAbsoluteX() - getAbsoluteX() == split);
- } else {
- inSplitMove = (mouse.getAbsoluteY() - getAbsoluteY() == split);
- }
- if (inSplitMove) {
- return;
- }
- }
-
- // I didn't take it, pass it on to my children
- super.onMouseDown(mouse);
- }
-
- /**
- * Handle mouse button releases.
- *
- * @param mouse mouse button release event
- */
- @Override
- public void onMouseUp(final TMouseEvent mouse) {
- this.mouse = mouse;
-
- if (inSplitMove && mouse.isMouse1()) {
- // Stop moving split
- inSplitMove = false;
- return;
- }
-
- // I didn't take it, pass it on to my children
- super.onMouseUp(mouse);
- }
-
- /**
- * Handle mouse movements.
- *
- * @param mouse mouse motion event
- */
- @Override
- public void onMouseMotion(final TMouseEvent mouse) {
- this.mouse = mouse;
-
- if ((mouse.getAbsoluteX() - getAbsoluteX() < 0)
- || (mouse.getAbsoluteX() - getAbsoluteX() >= getWidth())
- || (mouse.getAbsoluteY() - getAbsoluteY() < 0)
- || (mouse.getAbsoluteY() - getAbsoluteY() >= getHeight())
- ) {
- // Mouse has travelled out of my window.
- inSplitMove = false;
- }
-
- if (inSplitMove) {
- if (vertical) {
- split = mouse.getAbsoluteX() - getAbsoluteX();
- split = Math.min(Math.max(1, split), getWidth() - 2);
- } else {
- split = mouse.getAbsoluteY() - getAbsoluteY();
- split = Math.min(Math.max(1, split), getHeight() - 2);
- }
- layoutChildren();
- return;
- }
-
- // I didn't take it, pass it on to my children
- super.onMouseMotion(mouse);
- }
-
- // ------------------------------------------------------------------------
- // TWidget ----------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Draw me on screen.
- */
- @Override
- public void draw() {
- CellAttributes attr = getTheme().getColor("tsplitpane");
- if (vertical) {
- vLineXY(split, 0, getHeight(), GraphicsChars.WINDOW_SIDE, attr);
- // TODO: draw intersections of children
-
- if ((mouse != null)
- && (mouse.getAbsoluteX() == getAbsoluteX() + split)
- && (mouse.getAbsoluteY() >= getAbsoluteY()) &&
- (mouse.getAbsoluteY() < getAbsoluteY() + getHeight())
- ) {
- putCharXY(split, mouse.getAbsoluteY() - getAbsoluteY(),
- '\u2194', attr);
- }
- } else {
- hLineXY(0, split, getWidth(), GraphicsChars.SINGLE_BAR, attr);
- // TODO: draw intersections of children
-
- if ((mouse != null)
- && (mouse.getAbsoluteY() == getAbsoluteY() + split)
- && (mouse.getAbsoluteX() >= getAbsoluteX()) &&
- (mouse.getAbsoluteX() < getAbsoluteX() + getWidth())
- ) {
- putCharXY(mouse.getAbsoluteX() - getAbsoluteX(), split,
- '\u2195', attr);
- }
- }
-
- }
-
- /**
- * Generate a human-readable string for this widget.
- *
- * @return a human-readable string
- */
- @Override
- public String toString() {
- return String.format("%s(%8x) %s position (%d, %d) geometry %dx%d " +
- "split %d left %s(%8x) right %s(%8x) top %s(%8x) bottom %s(%8x) " +
- "active %s enabled %s visible %s", getClass().getName(),
- hashCode(), (vertical ? "VERTICAL" : "HORIZONTAL"),
- getX(), getY(), getWidth(), getHeight(), split,
- (left == null ? "null" : left.getClass().getName()),
- (left == null ? 0 : left.hashCode()),
- (right == null ? "null" : right.getClass().getName()),
- (right == null ? 0 : right.hashCode()),
- (top == null ? "null" : top.getClass().getName()),
- (top == null ? 0 : top.hashCode()),
- (bottom == null ? "null" : bottom.getClass().getName()),
- (bottom == null ? 0 : bottom.hashCode()),
- isActive(), isEnabled(), isVisible());
- }
-
- // ------------------------------------------------------------------------
- // TSplitPane -------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Get the widget on the left side.
- *
- * @return the widget on the left, or null if not set
- */
- public TWidget getLeft() {
- return left;
- }
-
- /**
- * Set the widget on the left side.
- *
- * @param left the widget to set, or null to remove
- */
- public void setLeft(final TWidget left) {
- if (!vertical) {
- throw new IllegalArgumentException("cannot set left on " +
- "horizontal split pane");
- }
- if (left == null) {
- if (this.left != null) {
- remove(this.left);
- }
- this.left = null;
- return;
- }
- this.left = left;
- left.setParent(this, false);
- onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(),
- getHeight()));
- }
-
- /**
- * Get the widget on the right side.
- *
- * @return the widget on the right, or null if not set
- */
- public TWidget getRight() {
- return right;
- }
-
- /**
- * Set the widget on the right side.
- *
- * @param right the widget to set, or null to remove
- */
- public void setRight(final TWidget right) {
- if (!vertical) {
- throw new IllegalArgumentException("cannot set right on " +
- "horizontal split pane");
- }
- if (right == null) {
- if (this.right != null) {
- remove(this.right);
- }
- this.right = null;
- return;
- }
- this.right = right;
- right.setParent(this, false);
- onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(),
- getHeight()));
- }
-
- /**
- * Get the widget on the top side.
- *
- * @return the widget on the top, or null if not set
- */
- public TWidget getTop() {
- return top;
- }
-
- /**
- * Set the widget on the top side.
- *
- * @param top the widget to set, or null to remove
- */
- public void setTop(final TWidget top) {
- if (vertical) {
- throw new IllegalArgumentException("cannot set top on vertical " +
- "split pane");
- }
- if (top == null) {
- if (this.top != null) {
- remove(this.top);
- }
- this.top = null;
- return;
- }
- this.top = top;
- top.setParent(this, false);
- onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(),
- getHeight()));
- }
-
- /**
- * Get the widget on the bottom side.
- *
- * @return the widget on the bottom, or null if not set
- */
- public TWidget getBottom() {
- return bottom;
- }
-
- /**
- * Set the widget on the bottom side.
- *
- * @param bottom the widget to set, or null to remove
- */
- public void setBottom(final TWidget bottom) {
- if (vertical) {
- throw new IllegalArgumentException("cannot set bottom on " +
- "vertical split pane");
- }
- if (bottom == null) {
- if (this.bottom != null) {
- remove(this.bottom);
- }
- this.bottom = null;
- return;
- }
- this.bottom = bottom;
- bottom.setParent(this, false);
- onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(),
- getHeight()));
- }
-
- /**
- * Remove a widget, regardless of what pane it is on.
- *
- * @param widget the widget to remove
- */
- public void removeWidget(final TWidget widget) {
- if (widget == null) {
- throw new IllegalArgumentException("cannot remove null widget");
- }
- if (left == widget) {
- left = null;
- assert(right != widget);
- assert(top != widget);
- assert(bottom != widget);
- return;
- }
- if (right == widget) {
- right = null;
- assert(left != widget);
- assert(top != widget);
- assert(bottom != widget);
- return;
- }
- if (top == widget) {
- top = null;
- assert(left != widget);
- assert(right != widget);
- assert(bottom != widget);
- return;
- }
- if (bottom == widget) {
- bottom = null;
- assert(left != widget);
- assert(right != widget);
- assert(top != widget);
- return;
- }
- throw new IllegalArgumentException("widget " + widget +
- " not in this split");
- }
-
- /**
- * Replace a widget, regardless of what pane it is on, with another
- * widget.
- *
- * @param oldWidget the widget to remove
- * @param newWidget the widget to replace it with
- */
- public void replaceWidget(final TWidget oldWidget,
- final TWidget newWidget) {
-
- if (oldWidget == null) {
- throw new IllegalArgumentException("cannot remove null oldWidget");
- }
- if (left == oldWidget) {
- setLeft(newWidget);
- assert(right != newWidget);
- assert(top != newWidget);
- assert(bottom != newWidget);
- return;
- }
- if (right == oldWidget) {
- setRight(newWidget);
- assert(left != newWidget);
- assert(top != newWidget);
- assert(bottom != newWidget);
- return;
- }
- if (top == oldWidget) {
- setTop(newWidget);
- assert(left != newWidget);
- assert(right != newWidget);
- assert(bottom != newWidget);
- return;
- }
- if (bottom == oldWidget) {
- setBottom(newWidget);
- assert(left != newWidget);
- assert(right != newWidget);
- assert(top != newWidget);
- return;
- }
- throw new IllegalArgumentException("oldWidget " + oldWidget +
- " not in this split");
- }
-
- /**
- * Layout the two child widgets.
- */
- private void layoutChildren() {
- if (vertical) {
- if (left != null) {
- left.setDimensions(0, 0, split, getHeight());
- left.onResize(new TResizeEvent(TResizeEvent.Type.WIDGET,
- left.getWidth(), left.getHeight()));
- }
- if (right != null) {
- right.setDimensions(split + 1, 0, getWidth() - split - 1,
- getHeight());
- right.onResize(new TResizeEvent(TResizeEvent.Type.WIDGET,
- right.getWidth(), right.getHeight()));
- }
- } else {
- if (top != null) {
- top.setDimensions(0, 0, getWidth(), split);
- top.onResize(new TResizeEvent(TResizeEvent.Type.WIDGET,
- top.getWidth(), top.getHeight()));
- }
- if (bottom != null) {
- bottom.setDimensions(0, split + 1, getWidth(),
- getHeight() - split - 1);
- bottom.onResize(new TResizeEvent(TResizeEvent.Type.WIDGET,
- bottom.getWidth(), bottom.getHeight()));
- }
- }
- }
-
- /**
- * Recenter the split to the middle of this split pane.
- */
- public void center() {
- if (vertical) {
- split = getWidth() / 2;
- } else {
- split = getHeight() / 2;
- }
- layoutChildren();
- }
-
- /**
- * Remove this split, removing the widget specified.
- *
- * @param widgetToRemove the widget to remove
- * @param doClose if true, call the close() method before removing the
- * child
- * @return the pane that remains, or null if nothing is retained
- */
- public TWidget removeSplit(final TWidget widgetToRemove,
- final boolean doClose) {
-
- TWidget keep = null;
- if (vertical) {
- if ((widgetToRemove != left) && (widgetToRemove != right)) {
- throw new IllegalArgumentException("widget to remove is not " +
- "either of the panes in this splitpane");
- }
- if (widgetToRemove == left) {
- keep = right;
- } else {
- keep = left;
- }
-
- } else {
- if ((widgetToRemove != top) && (widgetToRemove != bottom)) {
- throw new IllegalArgumentException("widget to remove is not " +
- "either of the panes in this splitpane");
- }
- if (widgetToRemove == top) {
- keep = bottom;
- } else {
- keep = top;
- }
- }
-
- // Remove me from my parent widget.
- TWidget myParent = getParent();
- remove(false);
-
- if (keep == null) {
- if (myParent instanceof TSplitPane) {
- // TSplitPane has a left/right/top/bottom link to me
- // somewhere, remove it.
- ((TSplitPane) myParent).removeWidget(this);
- }
-
- // Nothing is left of either pane. Remove me and bail out.
- return null;
- }
-
- if (myParent instanceof TSplitPane) {
- // TSplitPane has a left/right/top/bottom link to me
- // somewhere, replace me with keep.
- ((TSplitPane) myParent).replaceWidget(this, keep);
- } else {
- keep.setParent(myParent, false);
- keep.setDimensions(getX(), getY(), getWidth(), getHeight());
- keep.onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(),
- getHeight()));
- }
-
- return keep;
- }
-
-}
git://git.nikiroo.be / fanfix.git / blobdiff