c/gtk3_calc/gtk3_calc.c

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5.2 KiB
C
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2023-07-21 22:02:03 +02:00
/*******************\
| GTK3 Calculator |
| By Alnotz |
\*******************/
/*
gcc -Wall -Wextra -o gtk3_calc gtk3_calc.c $(pkg-config --libs --cflags gtk+-3.0)
*/
#include <gtk/gtk.h>
/*Grid dimensions*/
#define B_COLS 5
#define B_ROWS 3
/*Total value*/
double total=0;
/*Operators
* = -> 0
* + -> 1
* - -> 2
* * -> 3
* / -> 4
* [:digit:] -> 5
*/
unsigned int op_flag=0;
/*Current value*/
double current=0;
/*Computing
* 0;0 ""
* 1
* 0;1 "1"
* 2
* 0;12 "12"
* + ()
* 12;0 "12+"
* 3
* 12;3 "12+3"
* 7
* 12;37 "12+37"
* - (12+37)
* 49;0 "12+37-"
* 5
* 49;5 "12+37-5"
* * (49-5)
* 44;0 "12+37-5*"
* 1
* 44;1 "12+37-5*1"
* = (44*1)
* 44;0 "44"
* + ()
* 44;0 "44+"
* 3
* 44;3 "44+3"
* = (44+3)
* 47;0 "47"
*/
static void compute(GtkWidget *label, GtkWidget *button)
{
const gchar *b_label=gtk_button_get_label(GTK_BUTTON (button));
const gchar *l_label=gtk_label_get_label(GTK_LABEL (label));
gchar new_label[256];
if(!strcmp(b_label, "+") |
!strcmp(b_label, "-") |
!strcmp(b_label, "*") |
!strcmp(b_label, "/"))
{
switch(op_flag)
{
case 0:
total=current;
break;
case 1:
total=total+current;
break;
case 2:
total=total-current;
break;
case 3:
total=total*current;
break;
case 4:
total=total/current;
break;
}
if(!strcmp(b_label, "+"))
{
op_flag=1;
}
else if(!strcmp(b_label, "-"))
{
op_flag=2;
}
else if(!strcmp(b_label, "*"))
{
op_flag=3;
}
else if(!strcmp(b_label, "/"))
{
op_flag=4;
}
sprintf(new_label, "%s%s", l_label, b_label);
current=0;
}
else if(!strcmp(b_label, "="))
{
switch(op_flag)
{
case 0:
total=current;
break;
case 1:
total=total+current;
break;
case 2:
total=total-current;
break;
case 3:
total=total*current;
break;
case 4:
total=total/current;
break;
}
op_flag=0;
sprintf(new_label, "%.0f", total);
current=0;
}
else
{
current=10*current+atof(b_label);
sprintf(new_label, "%s%s", l_label, b_label);
}
gtk_label_set_label(GTK_LABEL (label), new_label);
}
/*Terminal output*/
static void clicked(GtkWidget *button, gpointer data)
{
const gchar* blabel=gtk_button_get_label(GTK_BUTTON (button));
g_print("%s\n", blabel);
g_print("%.0f;%.0f\n", total, current);
}
/*Window building*/
static void activate(GtkApplication* app, gpointer user_data)
{
/*Objects list*/
GtkWidget *window;
GtkWidget *box;
GtkWidget *label;
GtkWidget *frame;
GtkWidget *grid;
GtkWidget *button;
GtkWidget *buttonQuit;
char l_string[4];
int l_count;
/*Window*/
window=gtk_application_window_new(app);
gtk_window_set_title(GTK_WINDOW (window), "Fenêtre");
gtk_container_set_border_width(GTK_CONTAINER (window), 10);
/*Box*/
box=gtk_box_new(GTK_ORIENTATION_VERTICAL, 2);
gtk_container_add(GTK_CONTAINER (window), box);
/*Text output*/
label=gtk_label_new(NULL);
gtk_container_add(GTK_CONTAINER (box), label);
/*Grid frame*/
frame=gtk_frame_new("Grille à boutons");
gtk_frame_set_shadow_type(GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_container_add(GTK_CONTAINER (box), frame);
gtk_widget_set_halign(frame, GTK_ALIGN_CENTER);
/*Buttons grid*/
grid=gtk_grid_new();
gtk_grid_set_column_homogeneous(GTK_GRID (grid), TRUE);
gtk_grid_set_column_spacing(GTK_GRID (grid), 2);
gtk_grid_set_row_homogeneous(GTK_GRID (grid), TRUE);
gtk_grid_set_row_spacing(GTK_GRID (grid), 2);
gtk_container_add(GTK_CONTAINER (frame), grid);
/*Buttons*/
for(int l=0; l<B_ROWS; l++)
{
for(int c=0; c<B_COLS; c++)
{
l_count=l+c*B_ROWS;
switch(l_count)
{
case 10:
sprintf(l_string, "+");
break;
case 11:
sprintf(l_string, "-");
break;
case 12:
sprintf(l_string, "*");
break;
case 13:
sprintf(l_string, "/");
break;
case 14:
sprintf(l_string, "=");
break;
default:
sprintf(l_string, "%d", l_count);
break;
}
button=gtk_button_new_with_label(l_string);
g_signal_connect_swapped(button, "clicked", G_CALLBACK (compute), label);
g_signal_connect(button, "clicked", G_CALLBACK (clicked), NULL);
gtk_grid_attach(GTK_GRID (grid), button, (gint) l, (gint) c, 1, 1);
}
}
/*Quit button*/
buttonQuit=gtk_button_new_with_label("Quit");
g_signal_connect_swapped(buttonQuit, "clicked", G_CALLBACK (gtk_widget_destroy), window);
gtk_box_pack_end(GTK_BOX (box), buttonQuit, FALSE, TRUE, 2);
gtk_widget_set_halign(buttonQuit, GTK_ALIGN_CENTER);
gtk_widget_show_all(window);
}
/*Application*/
int main( int argc, char* argv[])
{
printf("DÉBUT\n");
GtkApplication *app;
int status;
app=gtk_application_new("fr.alnotz.gtk3_calc", G_APPLICATION_FLAGS_NONE);
g_signal_connect(app, "activate", G_CALLBACK (activate), NULL);
status=g_application_run(G_APPLICATION (app), argc, argv);
g_object_unref(app);
printf("FIN\n");
return status;
}