+++ /dev/null
-/*
- * This file is part of lanterna (http://code.google.com/p/lanterna/).
- *
- * lanterna is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- * Copyright (C) 2010-2015 Martin
- */
-package com.googlecode.lanterna.gui2;
-
-import com.googlecode.lanterna.TerminalPosition;
-import com.googlecode.lanterna.TerminalSize;
-import com.googlecode.lanterna.input.KeyStroke;
-import com.googlecode.lanterna.input.KeyType;
-import com.googlecode.lanterna.input.MouseAction;
-
-/**
- * This abstract implementation of {@code BasePane} has the common code shared by all different concrete
- * implementations.
- */
-public abstract class AbstractBasePane implements BasePane {
- protected final ContentHolder contentHolder;
- protected InteractableLookupMap interactableLookupMap;
- private Interactable focusedInteractable;
- private boolean invalid;
- private boolean strictFocusChange;
- private boolean enableDirectionBasedMovements;
-
- protected AbstractBasePane() {
- this.contentHolder = new ContentHolder();
- this.interactableLookupMap = new InteractableLookupMap(new TerminalSize(80, 25));
- this.invalid = false;
- this.strictFocusChange = false;
- this.enableDirectionBasedMovements = true;
- }
-
- @Override
- public boolean isInvalid() {
- return invalid || contentHolder.isInvalid();
- }
-
- @Override
- public void invalidate() {
- invalid = true;
-
- //Propagate
- contentHolder.invalidate();
- }
-
- @Override
- public void draw(TextGUIGraphics graphics) {
- graphics.applyThemeStyle(graphics.getThemeDefinition(Window.class).getNormal());
- graphics.fill(' ');
- contentHolder.draw(graphics);
-
- if(!interactableLookupMap.getSize().equals(graphics.getSize())) {
- interactableLookupMap = new InteractableLookupMap(graphics.getSize());
- } else {
- interactableLookupMap.reset();
- }
- contentHolder.updateLookupMap(interactableLookupMap);
- //interactableLookupMap.debug();
- invalid = false;
- }
-
- @Override
- public boolean handleInput(KeyStroke key) {
- if(key.getKeyType() == KeyType.MouseEvent) {
- MouseAction mouseAction = (MouseAction)key;
- TerminalPosition localCoordinates = fromGlobal(mouseAction.getPosition());
- Interactable interactable = interactableLookupMap.getInteractableAt(localCoordinates);
- interactable.handleInput(key);
- }
- else if(focusedInteractable != null) {
- Interactable next = null;
- Interactable.FocusChangeDirection direction = Interactable.FocusChangeDirection.TELEPORT; //Default
- Interactable.Result result = focusedInteractable.handleInput(key);
- if(!enableDirectionBasedMovements) {
- if(result == Interactable.Result.MOVE_FOCUS_DOWN || result == Interactable.Result.MOVE_FOCUS_RIGHT) {
- result = Interactable.Result.MOVE_FOCUS_NEXT;
- }
- else if(result == Interactable.Result.MOVE_FOCUS_UP || result == Interactable.Result.MOVE_FOCUS_LEFT) {
- result = Interactable.Result.MOVE_FOCUS_PREVIOUS;
- }
- }
- switch (result) {
- case HANDLED:
- return true;
- case UNHANDLED:
- //Filter the event recursively through all parent containers until we hit null; give the containers
- //a chance to absorb the event
- Container parent = focusedInteractable.getParent();
- while(parent != null) {
- if(parent.handleInput(key)) {
- return true;
- }
- parent = parent.getParent();
- }
- return false;
- case MOVE_FOCUS_NEXT:
- next = contentHolder.nextFocus(focusedInteractable);
- if(next == null) {
- next = contentHolder.nextFocus(null);
- }
- direction = Interactable.FocusChangeDirection.NEXT;
- break;
- case MOVE_FOCUS_PREVIOUS:
- next = contentHolder.previousFocus(focusedInteractable);
- if(next == null) {
- next = contentHolder.previousFocus(null);
- }
- direction = Interactable.FocusChangeDirection.PREVIOUS;
- break;
- case MOVE_FOCUS_DOWN:
- next = interactableLookupMap.findNextDown(focusedInteractable);
- direction = Interactable.FocusChangeDirection.DOWN;
- if(next == null && !strictFocusChange) {
- next = contentHolder.nextFocus(focusedInteractable);
- direction = Interactable.FocusChangeDirection.NEXT;
- }
- break;
- case MOVE_FOCUS_LEFT:
- next = interactableLookupMap.findNextLeft(focusedInteractable);
- direction = Interactable.FocusChangeDirection.LEFT;
- break;
- case MOVE_FOCUS_RIGHT:
- next = interactableLookupMap.findNextRight(focusedInteractable);
- direction = Interactable.FocusChangeDirection.RIGHT;
- break;
- case MOVE_FOCUS_UP:
- next = interactableLookupMap.findNextUp(focusedInteractable);
- direction = Interactable.FocusChangeDirection.UP;
- if(next == null && !strictFocusChange) {
- next = contentHolder.previousFocus(focusedInteractable);
- direction = Interactable.FocusChangeDirection.PREVIOUS;
- }
- break;
- }
- if(next != null) {
- setFocusedInteractable(next, direction);
- }
- return true;
- }
- return false;
- }
-
- @Override
- public Component getComponent() {
- return contentHolder.getComponent();
- }
-
- @Override
- public void setComponent(Component component) {
- contentHolder.setComponent(component);
- }
-
- @Override
- public Interactable getFocusedInteractable() {
- return focusedInteractable;
- }
-
- @Override
- public TerminalPosition getCursorPosition() {
- if(focusedInteractable == null) {
- return null;
- }
- TerminalPosition position = focusedInteractable.getCursorLocation();
- if(position == null) {
- return null;
- }
- //Don't allow the component to set the cursor outside of its own boundaries
- if(position.getColumn() < 0 ||
- position.getRow() < 0 ||
- position.getColumn() >= focusedInteractable.getSize().getColumns() ||
- position.getRow() >= focusedInteractable.getSize().getRows()) {
- return null;
- }
- return focusedInteractable.toBasePane(position);
- }
-
- @Override
- public void setFocusedInteractable(Interactable toFocus) {
- setFocusedInteractable(toFocus,
- toFocus != null ?
- Interactable.FocusChangeDirection.TELEPORT : Interactable.FocusChangeDirection.RESET);
- }
-
- protected void setFocusedInteractable(Interactable toFocus, Interactable.FocusChangeDirection direction) {
- if(focusedInteractable == toFocus) {
- return;
- }
- if(focusedInteractable != null) {
- focusedInteractable.onLeaveFocus(direction, focusedInteractable);
- }
- Interactable previous = focusedInteractable;
- focusedInteractable = toFocus;
- if(toFocus != null) {
- toFocus.onEnterFocus(direction, previous);
- }
- invalidate();
- }
-
- @Override
- public void setStrictFocusChange(boolean strictFocusChange) {
- this.strictFocusChange = strictFocusChange;
- }
-
- @Override
- public void setEnableDirectionBasedMovements(boolean enableDirectionBasedMovements) {
- this.enableDirectionBasedMovements = enableDirectionBasedMovements;
- }
-
- protected class ContentHolder extends AbstractComposite<Container> {
- @Override
- public void setComponent(Component component) {
- if(getComponent() == component) {
- return;
- }
- setFocusedInteractable(null);
- super.setComponent(component);
- if(focusedInteractable == null && component instanceof Interactable) {
- setFocusedInteractable((Interactable)component);
- }
- else if(focusedInteractable == null && component instanceof Container) {
- setFocusedInteractable(((Container)component).nextFocus(null));
- }
- }
-
- public boolean removeComponent(Component component) {
- boolean removed = super.removeComponent(component);
- if (removed) {
- focusedInteractable = null;
- }
- return removed;
- }
-
- @Override
- public TextGUI getTextGUI() {
- return AbstractBasePane.this.getTextGUI();
- }
-
- @Override
- protected ComponentRenderer<Container> createDefaultRenderer() {
- return new ComponentRenderer<Container>() {
- @Override
- public TerminalSize getPreferredSize(Container component) {
- Component subComponent = getComponent();
- if(subComponent == null) {
- return TerminalSize.ZERO;
- }
- return subComponent.getPreferredSize();
- }
-
- @Override
- public void drawComponent(TextGUIGraphics graphics, Container component) {
- Component subComponent = getComponent();
- if(subComponent == null) {
- return;
- }
- subComponent.draw(graphics);
- }
- };
- }
-
- @Override
- public TerminalPosition toGlobal(TerminalPosition position) {
- return AbstractBasePane.this.toGlobal(position);
- }
-
- @Override
- public TerminalPosition toBasePane(TerminalPosition position) {
- return position;
- }
-
- @Override
- public BasePane getBasePane() {
- return AbstractBasePane.this;
- }
- }
-}
git://git.nikiroo.be / jvcard.git / blobdiff