111 lines
3.0 KiB
Java
111 lines
3.0 KiB
Java
package org.warp.picalculator.math.functions;
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import static org.warp.picalculator.device.graphicengine.Display.Render.glGetStringWidth;
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import static org.warp.picalculator.device.graphicengine.Display.Render.glDrawStringLeft;
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import java.util.ArrayList;
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import java.util.List;
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import org.warp.picalculator.Error;
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import org.warp.picalculator.Errors;
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import org.warp.picalculator.Utils;
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import org.warp.picalculator.device.PIDisplay;
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import org.warp.picalculator.device.graphicengine.Display;
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import org.warp.picalculator.math.MathematicalSymbols;
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public class SumSubtraction extends FunctionTwoValues {
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public SumSubtraction(Function parent, Function value1, Function value2) {
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super(parent, value1, value2);
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}
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@Override
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public String getSymbol() {
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return MathematicalSymbols.SUM_SUBTRACTION;
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}
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@Override
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protected boolean isSolvable() throws Error {
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if (variable1 instanceof Number & variable2 instanceof Number) {
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return true;
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}
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return false;
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}
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@Override
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public List<Function> solveOneStep() throws Error {
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if (variable1 == null || variable2 == null) {
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throw new Error(Errors.SYNTAX_ERROR);
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}
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ArrayList<Function> result = new ArrayList<>();
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if (variable1.isSolved() & variable2.isSolved()) {
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result.add(((Number)variable1).add((Number)variable2));
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result.add(((Number)variable1).add(((Number)variable2).multiply(new Number(this.parent, "-1"))));
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} else {
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List<Function> l1 = new ArrayList<Function>();
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List<Function> l2 = new ArrayList<Function>();
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if (variable1.isSolved()) {
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l1.add(variable1);
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} else {
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l1.addAll(variable1.solveOneStep());
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}
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if (variable2.isSolved()) {
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l2.add(variable2);
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} else {
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l2.addAll(variable2.solveOneStep());
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}
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Function[][] results = Utils.joinFunctionsResults(l1, l2);
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for (Function[] f : results) {
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result.add(new SumSubtraction(this.parent, f[0], f[1]));
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}
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}
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return result;
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}
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@Override
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public void generateGraphics() {
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variable1.setSmall(small);
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variable1.generateGraphics();
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variable2.setSmall(small);
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variable2.generateGraphics();
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width = calcWidth();
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height = calcHeight();
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line = calcLine();
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}
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@Override
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public void draw(int x, int y) {
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// glColor3f(127, 127-50+new Random().nextInt(50), 255);
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// glFillRect(x,y,width,height);
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// glColor3f(0, 0, 0);
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int ln = getLine();
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int dx = 0;
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variable1.draw(dx + x, ln - variable1.getLine() + y);
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dx += variable1.getWidth();
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Display.Render.glSetFont(Utils.getFont(small));
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dx += 1;
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glDrawStringLeft(dx + x, ln - Utils.getFontHeight(small) / 2 + y, getSymbol());
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dx += glGetStringWidth(getSymbol());
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variable2.draw(dx + x, ln - variable2.getLine() + y);
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}
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@Override
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public int getWidth() {
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return width;
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}
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@Override
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protected int calcWidth() {
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int dx = 0;
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dx += variable1.getWidth();
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dx += 1;
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dx += glGetStringWidth(getSymbol());
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return dx += variable2.getWidth();
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}
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}
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