Added lab 10

Author: studentfedorov

Lab10/Makefile

@@ -0,0 +1,27 @@
+CXX = g++
+CXXFLAGS = -O2 -Wall -Werror -std=c++03 -Iinclude
+LDFLAGS = 
+
+EXE = main
+SRCDIR = src
+BINDIR = bin
+
+OBJECTS = $(patsubst $(SRCDIR)/%.cpp,$(BINDIR)/%.o,$(wildcard $(SRCDIR)/*.cpp))
+
+all: $(EXE)
+
+$(EXE): $(BINDIR) $(OBJECTS)
+	$(CXX) $(OBJECTS) -o $(EXE) $(LDFLAGS)
+	
+$(BINDIR)/%.o: $(SRCDIR)/%.cpp
+	$(CXX) $(CXXFLAGS) -c -MMD -o $@ $<
+
+include $(wildcard $(BINDIR)/*.d)
+
+$(BINDIR):
+	mkdir -p $(BINDIR)
+
+clean:
+	rm -rf $(BINDIR) $(EXE)
+
+.PHONY: clean all

Lab10/include/circle.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "figure.h"
+
+class Circle : public Figure {
+  public:
+    Circle(int id, int x, int y, int radius, const char* l);
+    void print() const;
+    bool is_inside(int x, int y) const;
+    void zoom(int factor);
+    ~Circle();
+  protected:
+    int radius;
+    char *label;
+};

Lab10/include/figure.h

@@ -0,0 +1,17 @@
+#pragma once
+
+class Figure {
+  public:
+    Figure(int id, int x, int y);
+    virtual ~Figure();
+
+    virtual void print() const = 0;
+    virtual bool is_inside(int x, int y) const = 0;
+    virtual void zoom(int factor) = 0;
+    void move(int new_x, int new_y);
+    int get_id() const;
+  protected:
+    int id;
+    int x;
+    int y;
+};

Lab10/include/rectangle.h

@@ -0,0 +1,13 @@
+#include "figure.h"
+
+class Rectangle : public Figure {
+  public:
+    Rectangle(int id, int x, int y, int width, int height);
+    void print() const;
+    bool is_inside(int x, int y) const;
+    void zoom(int factor);
+    ~Rectangle();
+  protected:
+    int width;
+    int height;
+};

Lab10/include/scheme.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "figure.h"
+
+class Scheme{
+  public:
+    Scheme(int capacity);
+    ~Scheme();
+
+    void push_back_figure(Figure* fg);
+    void remove_figure(int id);
+
+    void print_all_figures();
+    void zoom_figure(int id, int factor);
+    Figure* is_inside_figure(int x, int y);
+    void move(int id, int new_x, int new_y);
+
+  private:
+    Figure** figures_;
+    int size_;
+};

Lab10/src/circle.cpp

@@ -0,0 +1,26 @@
+#include "circle.h"
+#include <cstring>
+#include <cstdio>
+#include <cmath>
+
+Circle::Circle(int id, int x, int y, int r, const char* l):Figure(id, x, y){
+    radius = r;
+    label = new char[strlen(l)+1];
+    strcpy(label, l);
+}
+
+void Circle::print() const{
+    printf("Circle %d: x = %d y = %d radius = %d label = %s\n", id, x, y, radius, label);
+}
+
+bool Circle::is_inside(int sx, int sy) const{
+    return (sqrt((sx-x)*(double)(sx-x) + (sy-y)*(double)(sy-y)) <= radius);
+}
+
+void Circle::zoom(int factor){
+    radius *= factor;
+}
+
+Circle::~Circle(){
+    delete []label;
+}

Lab10/src/figure.cpp

@@ -0,0 +1,14 @@
+#include "figure.h"
+
+Figure::Figure(int id, int x, int y):id(id), x(x), y(y){}
+
+Figure::~Figure(){}
+
+void Figure::move(int new_x, int new_y){
+    x = new_x;
+    y = new_y;
+}
+
+int Figure::get_id() const{
+    return id;
+}

Lab10/src/main.cpp

@@ -0,0 +1,30 @@
+#include <stdio.h>
+
+#include "scheme.h"
+#include "rectangle.h"
+#include "circle.h"
+
+
+int main() {
+    Scheme scheme(10);
+
+    scheme.push_back_figure(new Rectangle(1, 5, 5, 10, 10));
+    scheme.push_back_figure(new Circle(2, 3, 3, 3, "very nice circle"));
+
+    scheme.print_all_figures();
+
+    Figure* found = scheme.is_inside_figure(5, 5);
+    if (found != 0) {
+        found->print();
+    }
+    else {
+        printf("not found\n");
+    }
+
+    scheme.zoom_figure(1, 2);
+    scheme.print_all_figures();
+    scheme.remove_figure(1);
+    scheme.print_all_figures();
+
+    return 0;
+}

Lab10/src/rectangle.cpp

@@ -0,0 +1,22 @@
+#include "rectangle.h"
+#include <cstring>
+#include <cstdio>
+#include <cmath>
+
+Rectangle::Rectangle(int id, int x, int y, int width, int height):Figure(id, x, y), width(width), height(height){}
+
+void Rectangle::print() const{
+    printf("Rectangle %d: x = %d y = %d width = %d height = %d\n", id, x, y, width, height);
+}
+
+bool Rectangle::is_inside(int sx, int sy) const{
+    return (2 * x - width <= 2 * sx  && 2 * sx <= 2 * x + width && 2 * y - height <= 2 * sy && 2 * sy <= 2 * y + height);
+}
+
+void Rectangle::zoom(int factor){
+    width *= factor;
+    height *= factor;
+}
+
+Rectangle::~Rectangle(){}
+

Lab10/src/scheme.cpp

@@ -0,0 +1,57 @@
+#include "scheme.h"
+#include <algorithm>
+#include <utility>
+
+Scheme::Scheme(int capacity){
+    size_ = 0;
+    figures_ = new Figure* [capacity];
+}
+
+Scheme::~Scheme(){
+    for (int i = 0; i < size_; i++)
+        delete figures_[i];
+    delete []figures_;
+}
+
+void Scheme::push_back_figure(Figure* fg){
+    figures_[size_] = fg;
+    size_++;
+}
+
+void Scheme::remove_figure(int id){
+    int pos = 0;
+    for (; pos < size_; pos++)
+        if (figures_[pos] -> get_id() == id)
+            break;
+    if (pos == size_)
+        return;
+    for (int i = pos; i + 1 < size_; i++)
+        std::swap(figures_[i], figures_[i+1]);
+    size_--;
+    delete figures_[size_];
+}
+
+void Scheme::print_all_figures(){
+    for (int i = 0; i < size_; i++){
+        figures_[i] -> print();
+    }
+}
+
+void Scheme::zoom_figure(int id, int factor){
+    for (int i = 0; i < size_; i++)
+        if (figures_[i] -> get_id() == id)
+            figures_[i] -> zoom(factor);
+}
+
+Figure* Scheme::is_inside_figure(int x, int y){
+    for (int i = 0; i < size_; i++)
+        if (figures_[i] -> is_inside(x, y))
+            return figures_[i];
+    return NULL;
+}
+
+void Scheme::move(int id, int new_x, int new_y){
+    for (int i = 0; i < size_; i++)
+        if (figures_[i] -> get_id() == id)
+            figures_[i] -> move(new_x, new_y);
+}