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Java Source | 1998-04-08 | 6.6 KB | 218 lines |
- /* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- package netscape.plugin.composer.mapedit;
- import netscape.plugin.composer.io.Tag;
- import java.awt.*;
- import java.util.*;
- import java.net.URL;
-
- public class RectArea extends Area {
- static RectArea firstMouseDown(Point pImage) {
- // start out uncompleted
- return new RectArea(new Rectangle(pImage.x,pImage.y,0,0),pImage,"");
- }
-
- private RectArea(Rectangle r,Point pPrev,String u) {
- // Create a completed RectArea.
- super(u);
-
- rectangle = r;
- if (pPrev != null) {
- // copy it.
- prev = new Point(pPrev.x,pPrev.y);
- }
- else {
- prev = null;
- }
- }
-
- public Rectangle boundingBox() {
- // Return a copy.
- return new Rectangle(rectangle.x,rectangle.y,rectangle.width,rectangle.height);
- }
-
- void mouseUp(Point pImage,Rectangle clp) {
- if (completed())
- return;
- update(prev,pImage);
-
- // Complete the RectArea
- prev = null;
- }
-
- void mouseDown(Point pImage,Rectangle clp) {
- if (completed())
- return;
-
- update(prev,pImage);
- }
-
- void mouseMoved(Point pImage,Rectangle clp) {
- if (completed())
- return;
-
- update(prev,pImage);
- }
-
- void mouseDragged(Point pImage,Rectangle clp) {
- if (completed())
- return;
-
- update(prev,pImage);
- }
-
- void clip(Rectangle c) {
- Rectangle r = rectangle;
-
- int right = r.x + r.width;
- int bottom = r.y + r.height;
-
- r.x = Math.max(c.x,r.x);
- r.y = Math.max(c.y,r.y);
- right = Math.min(right,c.x + c.width);
- bottom = Math.min(bottom,c.y + c.height);
- r.width = right - r.x;
- r.height = bottom - r.y;
- if (r.width <= 0 || r.height <= 0) {
- Debug.println("RectArea.clip(): invalid rect");
- }
- }
-
- boolean moveBy(int dx,int dy,Rectangle clp) {
- if (rectangle.x + dx < clp.x) {
- dx = Math.min(clp.x - rectangle.x,0);
- }
- else if (rectangle.x + dx + rectangle.width > clp.x + clp.width) {
- dx = Math.max(clp.x + clp.width - (rectangle.x + rectangle.width),0);
- }
- if (rectangle.y + dy < clp.y) {
- dy = Math.min(clp.y - rectangle.y,0);
- }
- else if (rectangle.y + dy + rectangle.height > clp.y + clp.height) {
- dy = Math.max(clp.y + clp.height - (rectangle.y + rectangle.height),0);
- }
-
-
- if (dx != 0 || dy !=0) {
- rectangle.translate(dx,dy);
- return true;
- }
-
- return false;
- }
-
- boolean resizeBy(int dx,int dy,Rectangle clp) {
- if (rectangle.width + dx > 0 &&
- rectangle.height + dy > 0 &&
- rectangle.x + rectangle.width + dx <= clp.x + clp.width &&
- rectangle.y + rectangle.height + dy <= clp.y + clp.height) {
- rectangle.width += dx;
- rectangle.height += dy;
- return true;
- }
- else {
- return false;
- }
- }
-
- private void update(Point p1,Point p2) {
- rectangle.x = Math.min(p1.x,p2.x);
- rectangle.y = Math.min(p1.y,p2.y);
- rectangle.width = Math.abs(p2.x - p1.x) + 1;
- rectangle.height = Math.abs(p2.y - p1.y) + 1;
- }
-
- boolean forceCompletion() {
- prev = null;
- return true;
- }
-
- boolean completed() {return prev == null;}
-
- boolean containsPoint(int x,int y) {
- return rectangle.inside(x,y); // jdk 1.1
- }
-
- void draw(Graphics g,Dimension off,boolean selected) {
- // rectangle at the real location in the color, "inner".
- g.setColor(getInner(selected));
- g.drawRect(rectangle.x+off.width,rectangle.y+off.height,
- rectangle.width,rectangle.height);
- // Two rectangles, one pixel inside and outside, respectively, in the color,
- // "outer".
- g.setColor(getOuter(selected));
- g.drawRect(rectangle.x-1+off.width,rectangle.y-1+off.height,
- rectangle.width+2,rectangle.height+2);
- g.drawRect(rectangle.x+1+off.width,rectangle.y+1+off.height,
- rectangle.width-2,rectangle.height-2);
- }
-
- // Return a new Tag with all the information in the RectArea.
- Tag toTag() {
- Tag tag = new Tag("area");
- tag.addAttribute("shape","rect");
- tag.addAttribute("coords",
- "" + rectangle.x + "," + rectangle.y + "," +
- (rectangle.x + rectangle.width - 1) + "," +
- (rectangle.y + rectangle.height - 1));
- String href = getURL().toString();
- if (href.length() > 0) {
- tag.addAttribute("href",href);
- }
- return tag;
- }
-
-
- static RectArea fromTag(Tag tag,URL base) {
- if (tag.getName().equals("AREA") &&
- // tag.containsAttribute("HREF") &&
- tag.containsAttribute("COORDS")) {
-
- // If ANYTHING goes wrong in parsing, we just ignore the tag.
- try {
- String shape = tag.lookupAttribute("SHAPE");
-
- if (shape == null || shape.equalsIgnoreCase("RECT")) {
- String coords = tag.lookupAttribute("COORDS");
- StringTokenizer tok = new StringTokenizer(coords," ,");
- int x1 = Integer.parseInt(tok.nextToken());
- int y1 = Integer.parseInt(tok.nextToken());
- int x2 = Integer.parseInt(tok.nextToken());
- int y2 = Integer.parseInt(tok.nextToken());
- Rectangle rectangle = new Rectangle(Math.min(x1,x2),
- Math.min(y1,y2),
- Math.abs(x2 - x1) + 1,
- Math.abs(y2 - y1) + 1);
- return new RectArea(rectangle,null,get_href(tag,base));
- }
- }
- catch (Exception e) {}
- }
- return null;
- }
-
- /** If non-null, used for creation. */
- private Point prev;
-
- /** The actual size/location of the RectArea. */
- private Rectangle rectangle;
- }
-
-
-