/*
* Copyright (C) 2013 Dr. John Lindsay <jlindsay@uoguelph.ca>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package whitebox.cartographic;
import java.util.ArrayList;
import java.util.List;
import whitebox.interfaces.CartographicElement;
/**
* This is a container for other cartographic elements that allows for grouping,
* such that the elements can be treated as a single object for drawing.
* @author johnlindsay
*/
public class CartographicElementGroup implements CartographicElement, Comparable<CartographicElement> {
private String cartoElementType = "CartographicElementGroup";
private int upperLeftX = -32768;
private int upperLeftY = -32768;
private int height = -1; // in points
private int width = -1; // in points
private boolean visible = true;
private boolean selected = false;
private int number = -1;
private String name = "Neatline";
private int selectedOffsetX;
private int selectedOffsetY;
private List<CartographicElement> elementList = new ArrayList<>();
public CartographicElementGroup() {
// no-arg constructor
}
public CartographicElementGroup(String name) {
this.name = name;
}
public CartographicElementGroup(String name, List<CartographicElement> elementList) {
this.name = name;
this.elementList = elementList;
setBox();
}
public List<CartographicElement> getElementList() {
return elementList;
}
public void setElementList(List<CartographicElement> elementList) {
this.elementList = elementList;
setBox();
}
private void setBox() {
int minX = Integer.MAX_VALUE;
int maxX = Integer.MIN_VALUE;
int minY = Integer.MAX_VALUE;
int maxY = Integer.MIN_VALUE;
for (CartographicElement ce : elementList) {
if (ce.getUpperLeftX() < minX) { minX = ce.getUpperLeftX(); }
if (ce.getUpperLeftY() < minY) { minY = ce.getUpperLeftY(); }
if (ce.getLowerRightX() > maxX) { maxX = ce.getLowerRightX(); }
if (ce.getLowerRightY() > maxY) { maxY = ce.getLowerRightY(); }
}
upperLeftX = minX;
upperLeftY = minY;
width = maxX - minX;
height = maxY - minY;
}
@Override
public boolean isVisible() {
return visible;
}
@Override
public void setVisible(boolean visible) {
this.visible = visible;
}
@Override
public boolean isSelected() {
return selected;
}
@Override
public void setSelected(boolean selected) {
this.selected = selected;
}
@Override
public int getElementNumber() {
return number;
}
@Override
public void setElementNumber(int number) {
this.number = number;
}
@Override
public String getName() {
return name;
}
@Override
public void setName(String name) {
this.name = name;
}
@Override
public int compareTo(CartographicElement other) {
final int BEFORE = -1;
final int EQUAL = 0;
final int AFTER = 1;
// compare them based on their element (overlay) numbers
if (this.number < other.getElementNumber()) {
return BEFORE;
} else if (this.number > other.getElementNumber()) {
return AFTER;
}
return EQUAL;
}
@Override
public int getUpperLeftX() {
return upperLeftX;
}
@Override
public void setUpperLeftX(int upperLeftX) {
int delta = upperLeftX - this.upperLeftX;
int value;
this.upperLeftX = upperLeftX;
for (CartographicElement ce : elementList) {
value = ce.getUpperLeftX();
ce.setUpperLeftX(value + delta);
}
}
@Override
public int getUpperLeftY() {
return upperLeftY;
}
@Override
public void setUpperLeftY(int upperLeftY) {
int delta = upperLeftY - this.upperLeftY;
int value;
this.upperLeftY = upperLeftY;
for (CartographicElement ce : elementList) {
value = ce.getUpperLeftY();
ce.setUpperLeftY(value + delta);
}
}
@Override
public int getLowerRightX() {
return upperLeftX + width;
}
@Override
public int getLowerRightY() {
return upperLeftY + height;
}
@Override
public int getSelectedOffsetX() {
return selectedOffsetX;
}
@Override
public void setSelectedOffsetX(int selectedOffsetX) {
this.selectedOffsetX = selectedOffsetX;
}
@Override
public int getSelectedOffsetY() {
return selectedOffsetY;
}
@Override
public void setSelectedOffsetY(int selectedOffsetY) {
this.selectedOffsetY = selectedOffsetY;
}
public int getWidth() {
return width;
}
public int getHeight() {
return height;
}
// methods
public void addElement(CartographicElement ce) {
elementList.add(ce);
setBox();
}
public void removeElement(int i) {
if (i < elementList.size()) {
elementList.remove(i);
}
setBox();
}
@Override
public void resize(int x, int y, int resizeMode) {
// can't resize a cartographic element group.
// int minSize = 50;
// int deltaX, deltaY;
// switch (resizeMode) {
// case 0: // off the north edge
// deltaY = y - upperLeftY;
// if (height - deltaY >= minSize) {
// upperLeftY = y;
// height -= deltaY;
// }
// break;
// case 1: // off the south edge
// deltaY = y - (upperLeftY + height);
// if (height + deltaY >= minSize) {
// height += deltaY;
// }
// break;
// case 2: // off the east edge
// deltaX = x - (upperLeftX + width);
// if (width + deltaX >= minSize) {
// width += deltaX;
// }
// break;
// case 3: // off the west edge
// deltaX = x - upperLeftX;
// if (width - deltaX >= minSize) {
// upperLeftX = x;
// width -= deltaX;
// }
// break;
// case 4: // off the northeast edge
// deltaY = y - upperLeftY;
// if (height - deltaY >= minSize) {
// upperLeftY = y;
// height -= deltaY;
// }
// deltaX = x - (upperLeftX + width);
// if (width + deltaX >= minSize) {
// width += deltaX;
// }
// break;
// case 5: // off the northwest edge
// deltaY = y - upperLeftY;
// if (height - deltaY >= minSize) {
// upperLeftY = y;
// height -= deltaY;
// }
// deltaX = x - upperLeftX;
// if (width - deltaX >= minSize) {
// upperLeftX = x;
// width -= deltaX;
// }
// break;
// case 6: // off the southeast edge
// deltaY = y - (upperLeftY + height);
// if (height + deltaY >= minSize) {
// height += deltaY;
// }
// deltaX = x - (upperLeftX + width);
// if (width + deltaX >= minSize) {
// width += deltaX;
// }
// break;
// case 7: // off the southwest edge
// deltaY = y - (upperLeftY + height);
// if (height + deltaY >= minSize) {
// height += deltaY;
// }
// deltaX = x - upperLeftX;
// if (width - deltaX >= minSize) {
// upperLeftX = x;
// width -= deltaX;
// }
// break;
// }
}
@Override
public CartographicElement.CartographicElementType getCartographicElementType() {
return CartographicElement.CartographicElementType.CARTOGRAPHIC_ELEMENT_GROUP;
}
}