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Copy pathbresenham.cpp
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185 lines (149 loc) · 4.04 KB
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#include "graphics.h"
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include <gtk/gtk.h>
#include "bresenham.h"
// bresenham line entries
GtkWidget* entry_x1; GtkWidget* entry_y1; GtkWidget* entry_x2 ; GtkWidget* entry_y2;
// bresenham circle entries
GtkWidget* entry_x; GtkWidget* entry_y; GtkWidget* entry_r;
//menu window
GtkWidget* wind_menu;
void bresenham_line(GtkButton* btn, GtkWidget* win_menu)
{
/// hide the menu window
gtk_widget_hide(win_menu);
/// get widgets
//builder
GtkBuilder* builder = gtk_builder_new_from_file ("glade/main.glade");
//window
GtkWidget* win_bresenhamL = GTK_WIDGET(gtk_builder_get_object(builder,"win_bresenhamL"));
// buttons
GtkWidget* btn_drawL = GTK_WIDGET(gtk_builder_get_object(builder,"btn_drawL"));
GtkWidget* btn_backL = GTK_WIDGET(gtk_builder_get_object(builder,"btn_backL"));
// entries
entry_x1 = GTK_WIDGET(gtk_builder_get_object(builder,"entry_x1"));
entry_y1 = GTK_WIDGET(gtk_builder_get_object(builder,"entry_y1"));
entry_x2 = GTK_WIDGET(gtk_builder_get_object(builder,"entry_x2"));
entry_y2 = GTK_WIDGET(gtk_builder_get_object(builder,"entry_y2"));
//
wind_menu = win_menu;
/// connect signals
g_signal_connect(btn_drawL,"clicked",G_CALLBACK(bresenham_line_start),win_bresenhamL);
g_signal_connect(btn_backL,"clicked",G_CALLBACK(back_to_menu),win_bresenhamL);
/// show window
gtk_widget_show(win_bresenhamL);
}
void bresenham_line_start(GtkButton* btn, GtkWidget* win){
int gd,gm,x,y,end,p,x1,x2,y1,y2,dx,dy;
detectgraph(&gd,&gm);
/// get the entries input
x1 = atoi(gtk_entry_get_text(GTK_ENTRY(entry_x1)));
y1 = atoi(gtk_entry_get_text(GTK_ENTRY(entry_y1)));
x2 = atoi(gtk_entry_get_text(GTK_ENTRY(entry_x2)));
y2 = atoi(gtk_entry_get_text(GTK_ENTRY(entry_y2)));
initgraph(&gd,&gm,nullptr);
dx=abs(x1-x2);
dy=abs(y1-y2);
p = 2*dy-dx;
if(x1>x2)
{
x=x2;
y=y2;
end=x1;
}
else
{
x=x1;
y=y1;
end=x2;
}
putpixel(x,y,WHITE);
while(x<=end)
{
if(p<0)
{
x++;
p=p+2*dy;
}
else
{
x++;
y++;
p=p+2*(dy-dx);
}
putpixel(x,y,WHITE);
delay(100);
}
getch();
closegraph();
}
void bresenham_circle(GtkButton* btn, GtkWidget* win)
{
/// hide the menu window
gtk_widget_hide(win);
/// widgets
GtkBuilder* builder = gtk_builder_new_from_file ("glade/main.glade");
//window
GtkWidget* win_bresenhamC = GTK_WIDGET(gtk_builder_get_object(builder,"win_bresenhamC"));
// buttons
GtkWidget* btn_drawC = GTK_WIDGET(gtk_builder_get_object(builder,"btn_drawC"));
GtkWidget* btn_backC = GTK_WIDGET(gtk_builder_get_object(builder,"btn_backC"));
// entries
entry_x = GTK_WIDGET(gtk_builder_get_object(builder,"entry_x"));
entry_y = GTK_WIDGET(gtk_builder_get_object(builder,"entry_y"));
entry_r = GTK_WIDGET(gtk_builder_get_object(builder,"entry_r"));
//
wind_menu = win;
/// connect signals
g_signal_connect(btn_drawC,"clicked",G_CALLBACK(bresenham_circle_start),win_bresenhamC);
g_signal_connect(btn_backC,"clicked",G_CALLBACK(back_to_menu),win_bresenhamC);
/// show window
gtk_widget_show(win_bresenhamC);
}
void bresenham_circle_start(GtkButton* btn, GtkWidget* win){
int gd,gm,xc,yc,r,x,y,p;
detectgraph(&gd,&gm);
/// get the entries input
xc = atoi(gtk_entry_get_text(GTK_ENTRY(entry_x)));
yc = atoi(gtk_entry_get_text(GTK_ENTRY(entry_y)));
r = atoi(gtk_entry_get_text(GTK_ENTRY(entry_r)));
initgraph(&gd,&gm,NULL);
x=0;
y=r;
p=3-2*r;
pixel(xc,yc,x,y);
while(x<y)
{
if(p<0)
{
x++;
p=p+4*x+6;
}
else
{
x++;
y--;
p=p+4*(x-y)+10;
}
pixel(xc,yc,x,y);
}
getch();
closegraph();
}
void pixel(int xc,int yc,int x,int y)
{
putpixel(xc+x,yc+y,WHITE);
putpixel(xc+x,yc-y,WHITE);
putpixel(xc-x,yc+y,WHITE);
putpixel(xc-x,yc-y,WHITE);
putpixel(xc+y,yc+x,WHITE);
putpixel(xc+y,yc-x,WHITE);
putpixel(xc-y,yc+x,WHITE);
putpixel(xc-y,yc-x,WHITE);
}
void back_to_menu (GtkButton* btn, GtkWidget* win){
gtk_widget_hide(win);
gtk_widget_show(wind_menu);
}