svn-gvsig-desktop / trunk / extensions / extRasterTools-SE / src / org / gvsig / rastertools / georeferencing / ui / zoom / layers / ZoomCursorGraphicLayer.java @ 18264
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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package org.gvsig.rastertools.georeferencing.ui.zoom.layers; |
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import java.awt.Color; |
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import java.awt.Cursor; |
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import java.awt.Graphics2D; |
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import java.awt.Image; |
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import java.awt.Point; |
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import java.awt.Toolkit; |
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import java.awt.event.MouseEvent; |
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import java.awt.geom.Rectangle2D; |
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import javax.swing.ImageIcon; |
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import org.gvsig.rastertools.georeferencing.ui.zoom.CanvasZone; |
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import org.gvsig.rastertools.georeferencing.ui.zoom.IGraphicLayer; |
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import org.gvsig.rastertools.georeferencing.ui.zoom.tools.ToolEvent; |
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import org.gvsig.rastertools.georeferencing.ui.zoom.tools.ToolListener; |
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/**
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* Capa gr?fica que se dibuja sobre una vista de zoom un cursor
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* rectangular que representa una ventanta de zoom sobre la vista
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* 22/12/2007
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class ZoomCursorGraphicLayer implements IGraphicLayer { |
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//Operaciones sobre el cursor gr?fico
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private static final int NONE = -1; |
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private static final int REDIM_LEFT = 0; |
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private static final int REDIM_RIGHT = 1; |
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private static final int REDIM_UP = 2; |
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private static final int REDIM_DOWN = 3; |
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private static final int MOVE_UR = 4; |
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private static final int MOVE_UL = 5; |
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private static final int MOVE_LR = 6; |
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private static final int MOVE_LL = 7; |
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private final int MIN_CURSOR_SIZE = 10; |
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private int operation = NONE; |
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private Color color = Color.RED; |
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private int wCursor = 0; |
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private int hCursor = 0; |
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private int posX = 0; |
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private int posY = 0; |
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private Image iconHoriz = null; |
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private Image iconVert = null; |
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private Image iconMove = null; |
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private CanvasZone canvas = null; |
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//Memoria temporal de las posiciones en X y en Y previas a una operaci?n
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private int prevX, prevY; |
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private ToolListener listener = null; |
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/**
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* Constructor. Asigna el ancho y alto del rectangulo del cursor y la
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* posici?n en la inicializaci?n.
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*/
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public ZoomCursorGraphicLayer(int pX, int pY, int w, int h, ToolListener listener) { |
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wCursor = w; |
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hCursor = h; |
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posX = pX; |
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posY = pY; |
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this.listener = listener;
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try {
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iconHoriz = new ImageIcon(getClass().getClassLoader().getResource("images/FlechaHorizCursor.gif")).getImage(); |
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iconVert = new ImageIcon(getClass().getClassLoader().getResource("images/FlechaVertCursor.gif")).getImage(); |
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iconMove = new ImageIcon(getClass().getClassLoader().getResource("images/FlechaMoveCursor.gif")).getImage(); |
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} catch (NullPointerException e) { |
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} |
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} |
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/**
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* Asigna el canvas
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* @param canvas
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*/
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public void setCanvas(CanvasZone canvas) { |
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this.canvas = canvas;
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canvas.addMouseMotionListener(this);
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canvas.addMouseListener(this);
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} |
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/**
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* Asigna la posici?n del cursor en el canvas
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* @param x Posici?n en X
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* @param y Posici?n en Y
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*/
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public void setCursorPosition(int x, int y) { |
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this.posX = x;
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this.posY = y;
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} |
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/**
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* Asigna el tama?o del cursor en pixeles del canvas
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* @param w Ancho
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* @param h Alto
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*/
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public void setCursorSize(int w, int h) { |
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this.wCursor = w;
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this.hCursor = h;
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} |
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/**
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* Obtiene las coordenadas de la ventana de zoom. Las coordenadas son devueltas
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* en referencia a la vista.
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* @return
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*/
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public Rectangle2D getCursorViewCoordinates() { |
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return new Rectangle2D.Double(posX - (wCursor >> 1), posY - (hCursor >> 1), wCursor, hCursor); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.rastertools.georeferencing.ui.zoom.IGraphicLayer#draw(java.awt.Graphics2D, org.gvsig.raster.datastruct.Extent, int, int)
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*/
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public void draw(Graphics2D g, Rectangle2D ext, int w, int h) { |
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g.setColor(Color.RED);
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wCursor = Math.max(wCursor, MIN_CURSOR_SIZE);
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hCursor = Math.max(hCursor, MIN_CURSOR_SIZE);
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g.drawRect(posX - (wCursor >> 1), posY - (hCursor >> 1), wCursor, hCursor); |
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g.drawLine(posX, posY - (hCursor >> 1), posX, 0); |
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g.drawLine(posX, posY + (hCursor >> 1), posX, h);
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g.drawLine(0, posY, posX - (wCursor >> 1), posY); |
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g.drawLine(posX + (wCursor >> 1), posY, w, posY);
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} |
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/*
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* (non-Javadoc)
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* @see java.awt.event.MouseListener#mouseClicked(java.awt.event.MouseEvent)
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*/
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public void mouseClicked(MouseEvent e) { |
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} |
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/*
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* (non-Javadoc)
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* @see java.awt.event.MouseListener#mouseEntered(java.awt.event.MouseEvent)
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*/
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public void mouseEntered(MouseEvent e) { |
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} |
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/*
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* (non-Javadoc)
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* @see java.awt.event.MouseListener#mouseExited(java.awt.event.MouseEvent)
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*/
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public void mouseExited(MouseEvent e) { |
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} |
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/*
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* (non-Javadoc)
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* @see java.awt.event.MouseListener#mousePressed(java.awt.event.MouseEvent)
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*/
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public void mousePressed(MouseEvent e) { |
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prevX = e.getX(); |
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prevY = e.getY(); |
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} |
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/*
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* (non-Javadoc)
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* @see java.awt.event.MouseListener#mouseReleased(java.awt.event.MouseEvent)
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*/
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public void mouseReleased(MouseEvent e) { |
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if(getOperation() != NONE) {
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setOperation(NONE); |
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if(listener != null) |
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listener.endAction(new ToolEvent(this)); |
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} |
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} |
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/**
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* Cuando se pincha y se arrastra en los contornos se redimensiona el marco.
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*/
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public void mouseDragged(MouseEvent e) { |
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if(getOperation() == MOVE_UR) {
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posX += (e.getX() - (wCursor >> 1)) - posX;
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posY += (e.getY() + (hCursor >> 1)) - posY;
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return;
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} |
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if(getOperation() == MOVE_UL) {
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posX += (e.getX() + (wCursor >> 1)) - posX;
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posY += (e.getY() + (hCursor >> 1)) - posY;
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return;
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} |
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if(getOperation() == MOVE_LR) {
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posX += (e.getX() - (wCursor >> 1)) - posX;
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posY += (e.getY() - (hCursor >> 1)) - posY;
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return;
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} |
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if(getOperation() == MOVE_LL) {
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posX += (e.getX() + (wCursor >> 1)) - posX;
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posY += (e.getY() - (hCursor >> 1)) - posY;
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return;
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} |
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if(getOperation() == REDIM_LEFT) {
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wCursor += prevX - e.getX(); |
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posX = e.getX() + (wCursor >> 1);
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prevX = e.getX(); |
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return;
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} |
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if(getOperation() == REDIM_RIGHT) {
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int prevULX = posX - (wCursor >> 1); |
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wCursor += e.getX() - prevX; |
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posX = prevULX + (wCursor >> 1);
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prevX = e.getX(); |
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return;
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} |
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if(getOperation() == REDIM_UP) {
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hCursor += prevY - e.getY(); |
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posY = e.getY() + (hCursor >> 1);
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prevY = e.getY(); |
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return;
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} |
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if(getOperation() == REDIM_DOWN) {
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int prevULY = posY - (hCursor >> 1); |
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hCursor += e.getY() - prevY; |
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posY = prevULY + (hCursor >> 1);
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prevY = e.getY(); |
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return;
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} |
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} |
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/*
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* (non-Javadoc)
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* @see java.awt.event.MouseMotionListener#mouseMoved(java.awt.event.MouseEvent)
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*/
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public void mouseMoved(MouseEvent e) { |
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int pxLeft = posX - (wCursor >> 1); |
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int pxRight = posX + (wCursor >> 1); |
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int pyUp = posY - (hCursor >> 1); |
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int pyDown = posY + (hCursor >> 1); |
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if(e.getX() >= (pxRight - 2) && e.getX() <= (pxRight + 2) && e.getY() >= (pyUp - 2) && e.getY() <= (pyUp + 2)) { |
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if(iconMove != null) |
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canvas.setCursor(Toolkit.getDefaultToolkit().createCustomCursor(iconMove, new Point(16, 16), "")); |
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setOperation(MOVE_UR); |
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return;
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} |
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if(e.getX() >= (pxLeft - 2) && e.getX() <= (pxLeft + 2) && e.getY() >= (pyUp - 2) && e.getY() <= (pyUp + 2)) { |
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if(iconMove != null) |
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canvas.setCursor(Toolkit.getDefaultToolkit().createCustomCursor(iconMove, new Point(16, 16), "")); |
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setOperation(MOVE_UL); |
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return;
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} |
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if(e.getX() >= (pxLeft - 2) && e.getX() <= (pxLeft + 2) && e.getY() >= (pyDown - 2) && e.getY() <= (pyDown + 2)) { |
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if(iconMove != null) |
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canvas.setCursor(Toolkit.getDefaultToolkit().createCustomCursor(iconMove, new Point(16, 16), "")); |
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setOperation(MOVE_LL); |
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return;
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} |
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if(e.getX() >= (pxRight - 2) && e.getX() <= (pxRight + 2) && e.getY() >= (pyDown - 2) && e.getY() <= (pyDown + 2)) { |
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if(iconMove != null) |
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canvas.setCursor(Toolkit.getDefaultToolkit().createCustomCursor(iconMove, new Point(16, 16), "")); |
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setOperation(MOVE_LR); |
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return;
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} |
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if(e.getX() >= (pxLeft - 1) && e.getX() <= (pxLeft + 1)) { |
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if(iconHoriz != null) |
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canvas.setCursor(Toolkit.getDefaultToolkit().createCustomCursor(iconHoriz, new Point(16, 16), "")); |
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setOperation(REDIM_LEFT); |
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return;
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} |
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if(e.getX() >= (pxRight - 1) && e.getX() <= (pxRight + 1)) { |
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if(iconHoriz != null) |
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canvas.setCursor(Toolkit.getDefaultToolkit().createCustomCursor(iconHoriz, new Point(16, 16), "")); |
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setOperation(REDIM_RIGHT); |
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return;
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} |
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if(e.getY() >= (pyUp - 1) && e.getY() <= (pyUp + 1)) { |
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if(iconVert != null) |
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canvas.setCursor(Toolkit.getDefaultToolkit().createCustomCursor(iconVert, new Point(16, 16), "")); |
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setOperation(REDIM_UP); |
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return;
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} |
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if(e.getY() >= (pyDown - 1) && e.getY() <= (pyDown + 1)) { |
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if(iconVert != null) |
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canvas.setCursor(Toolkit.getDefaultToolkit().createCustomCursor(iconVert, new Point(16, 16), "")); |
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setOperation(REDIM_DOWN); |
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return;
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} |
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setOperation(NONE); |
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canvas.setCursor(new Cursor(Cursor.DEFAULT_CURSOR)); |
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} |
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/**
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* Obtiene la operaci?n sobre el cursor que hay seleccionada
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* @return Entero que representa a la operaci?n
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*/
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private int getOperation() { |
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return operation;
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} |
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/**
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* Asigna la operaci?n sobre el cursor que hay seleccionada
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* @param op
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*/
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private void setOperation(int op) { |
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operation = op; |
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} |
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/**
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* Obtiene el color del cursor
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* @return Color
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*/
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public Color getColor() { |
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return color;
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} |
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/**
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* Asigna el color del cursor
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* @param color
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*/
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public void setColor(Color color) { |
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this.color = color;
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} |
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} |
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