Initiation à la programmation Gtk+ 3

Dimanche 10 novembre 2013, par Yann , popularité : 4%

GNU/Linux |

Programme de l’article Mook C

#include <gtk/gtk.h>
//gcc <span class="base64" title="PGNvZGUgY2xhc3M9J3NwaXBfY29kZSBzcGlwX2NvZGVfaW5saW5lJyBkaXI9J2x0cic+cGtnLWNvbmZpZyAtLWNmbGFncyBndGsrLTMuMDwvY29kZT4="></span> -o first first.c <span class="base64" title="PGNvZGUgY2xhc3M9J3NwaXBfY29kZSBzcGlwX2NvZGVfaW5saW5lJyBkaXI9J2x0cic+cGtnLWNvbmZpZyAtLWxpYnMgZ3RrKy0zLjA8L2NvZGU+"></span>
int main (int   argc, char *argv[])
{
  GtkWidget *window;

  gtk_init (&argc, &argv);
  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

  g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);

  gtk_widget_show (window);
  gtk_main ();

  return 0;
}

#include <gtk/gtk.h>
//cc <span class="base64" title="PGNvZGUgY2xhc3M9J3NwaXBfY29kZSBzcGlwX2NvZGVfaW5saW5lJyBkaXI9J2x0cic+cGtnLWNvbmZpZyAtLWNmbGFncyBndGsrLTMuMDwvY29kZT4="></span> -o hello hello.c <span class="base64" title="PGNvZGUgY2xhc3M9J3NwaXBfY29kZSBzcGlwX2NvZGVfaW5saW5lJyBkaXI9J2x0cic+cGtnLWNvbmZpZyAtLWxpYnMgZ3RrKy0zLjA8L2NvZGU+"></span>
static void print_hello (GtkWidget *widget, gpointer   data)
{
  g_print ("Hello World\n");
}

static gboolean on_delete_event (GtkWidget *widget, GdkEvent  *event, gpointer   data)
{
  g_print ("delete event occurred\n");
  return TRUE;
}

int main (int   argc, char *argv[])
{
  GtkWidget *window;
  GtkWidget *button;

  gtk_init (&argc, &argv);

  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_window_set_title (GTK_WINDOW (window), "Hello");

  g_signal_connect (window, "delete-event", G_CALLBACK (on_delete_event), NULL);
  g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);

  gtk_container_set_border_width (GTK_CONTAINER (window), 10);
  button = gtk_button_new_with_label ("Hello World");

  g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);
  g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_widget_destroy), window);

  gtk_container_add (GTK_CONTAINER (window), button);
  gtk_widget_show (button);
  gtk_widget_show (window);

  gtk_main ();

  return 0;
}

#include <gtk/gtk.h>
//gcc <span class="base64" title="PGNvZGUgY2xhc3M9J3NwaXBfY29kZSBzcGlwX2NvZGVfaW5saW5lJyBkaXI9J2x0cic+cGtnLWNvbmZpZyAtLWNmbGFncyBndGsrLTMuMDwvY29kZT4="></span> -o packing packing.c <span class="base64" title="PGNvZGUgY2xhc3M9J3NwaXBfY29kZSBzcGlwX2NvZGVfaW5saW5lJyBkaXI9J2x0cic+cGtnLWNvbmZpZyAtLWxpYnMgZ3RrKy0zLjA8L2NvZGU+"></span>
static void print_hello (GtkWidget *widget, gpointer   data)
{
  g_print ("Hello World\n");
}

int main (int   argc, char *argv[])
{
  GtkWidget *window;
  GtkWidget *grid;
  GtkWidget *button;

  gtk_init (&argc, &argv);

  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_window_set_title (GTK_WINDOW (window), "Grid");
  g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
  gtk_container_set_border_width (GTK_CONTAINER (window), 10);

  grid = gtk_grid_new ();

  gtk_container_add (GTK_CONTAINER (window), grid);

  button = gtk_button_new_with_label ("Button 1");
  g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);

  gtk_grid_attach (GTK_GRID (grid), button, 0, 0, 1, 1);

  button = gtk_button_new_with_label ("Button 2");
  g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);

  gtk_grid_attach (GTK_GRID (grid), button, 1, 0, 1, 1);

  button = gtk_button_new_with_label ("Quit");
  g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL);

  gtk_grid_attach (GTK_GRID (grid), button, 0, 1, 2, 1);

  gtk_widget_show_all (window);

  gtk_main ();

  return 0;
}

<?xml version="1.0" encoding="UTF-8"?>
<interface>
  <!-- interface-requires gtk+ 3.0 -->
  <object class="GtkWindow" id="window">
    <property name="visible">True</property>
    <property name="can_focus">False</property>
    <property name="border_width">10</property>
    <property name="title" translatable="yes">window</property>
    <child>
      <object class="GtkGrid" id="grid">
        <property name="visible">True</property>
        <property name="can_focus">False</property>
        <child>
          <object class="GtkButton" id="button1">
            <property name="label">Button 1</property>
            <property name="use_action_appearance">False</property>
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="receives_default">False</property>
            <property name="use_action_appearance">False</property>
          </object>
          <packing>
            <property name="left_attach">0</property>
            <property name="top_attach">0</property>
            <property name="width">1</property>
            <property name="height">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkButton" id="button2">
            <property name="label">Button 2</property>
            <property name="use_action_appearance">False</property>
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="receives_default">False</property>
            <property name="use_action_appearance">False</property>
          </object>
          <packing>
            <property name="left_attach">1</property>
            <property name="top_attach">0</property>
            <property name="width">1</property>
            <property name="height">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkButton" id="quit">
            <property name="label">Quit</property>
            <property name="use_action_appearance">False</property>
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="receives_default">False</property>
            <property name="use_action_appearance">False</property>
          </object>
          <packing>
            <property name="left_attach">0</property>
            <property name="top_attach">1</property>
            <property name="width">2</property>
            <property name="height">1</property>
          </packing>
        </child>
      </object>
    </child>
  </object>
</interface>

#include <gtk/gtk.h>
//gcc <span class="base64" title="PGNvZGUgY2xhc3M9J3NwaXBfY29kZSBzcGlwX2NvZGVfaW5saW5lJyBkaXI9J2x0cic+cGtnLWNvbmZpZyAtLWNmbGFncyBndGsrLTMuMDwvY29kZT4="></span> -o rad rad.c <span class="base64" title="PGNvZGUgY2xhc3M9J3NwaXBfY29kZSBzcGlwX2NvZGVfaW5saW5lJyBkaXI9J2x0cic+cGtnLWNvbmZpZyAtLWxpYnMgZ3RrKy0zLjA8L2NvZGU+"></span>
static void print_hello (GtkWidget *widget, gpointer   data)
{
  g_print ("Hello World\n");
}

int main (int   argc, char *argv[])
{
  GtkBuilder *builder;
  GObject *window;
  GObject *button;

  gtk_init (&argc, &argv);

  /* Construct a GtkBuilder instance and load our UI description */
  builder = gtk_builder_new ();
  gtk_builder_add_from_file (builder, "gtk_foobar.ui", NULL);

  /* Connect signal handlers to the constructed widgets. */
  window = gtk_builder_get_object (builder, "window");
  g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);

  button = gtk_builder_get_object (builder, "button1");
  g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);

  button = gtk_builder_get_object (builder, "button2");
  g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);

  button = gtk_builder_get_object (builder, "quit");
  g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL);

  gtk_main ();

  return 0;
}

Programme multiplication

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
/*
 * main.c
 * Copyright (C) 2013 Yann Morere <yann@morere.eu>
 * 
 * multi 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.
 * 
 * multi 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/>.
 */

#include <config.h>
#include <gtk/gtk.h>

#include <glib/gi18n.h>

#include <stdlib.h>
#include <time.h>


typedef struct _Private Private;
static struct _Private
{
	/* ANJUTA: Widgets declaration for multi.ui - DO NOT REMOVE */
};

static struct Private* priv = NULL;

/* For testing propose use the local (not installed) ui file */
/* #define UI_FILE PACKAGE_DATA_DIR"/ui/multi.ui" */
#define UI_FILE "src/multi.ui"
#define TOP_WINDOW "windowMultiplication"

GtkBuilder *builder;
gint a,b,c;

void prepare_new_calculus(int *a, int *b, int *c)
{
 srand(time(NULL));
 *a = rand() % 11;
 *b = rand() % 11;
 *c = (*a)*(*b);
}


/* Signal handlers */
/* Note: These may not be declared static because signal autoconnection
 * only works with non-static methods
 */


void on_buttonValidateAnswer_released (GtkWidget *widget, gpointer data)
{
const gchar *get_result;
gint result;
GtkEntry *entryResult = GTK_ENTRY(gtk_builder_get_object (builder,  "entryAnswer"));   
get_result = gtk_entry_get_text(entryResult);
result=atoi(get_result);
GtkLabel *label_info = GTK_LABEL (gtk_builder_get_object (builder,  "labelAnswer"));
//GtkWindow *main_window = GTK_WINDOW (gtk_builder_get_object (builder, TOP_WINDOW));
//GtkWindow *main_window =  GTK_WINDOW (gtk_builder_get_object (builder, TOP_WINDOW));     

	
if(result==c)
      {
      gtk_label_set_text(GTK_LABEL(label_info),_("Good answer! Another try..."));
      }
 else {
      gtk_label_set_text(GTK_LABEL(label_info),_("Bad answer ! Retry..."));
      }
  
prepare_new_calculus(&a, &b, &c);

GtkLabel *label = GTK_LABEL (gtk_builder_get_object (builder,  "labelQuestion")); 
	gtk_label_set_text(GTK_LABEL(label),
                    g_strdup_printf (_("Calculate %d x %d ="), a, b) );

gtk_entry_set_text(GTK_ENTRY(entryResult),"");
}


void on_entryAnswer_activate (GtkWidget *widget, gpointer data)
{
	on_buttonValidateAnswer_released( widget, data);
}

void on_buttonAbout_released (GtkWidget *widget, gpointer data)
{
	GtkWidget * windowAbout = GTK_WIDGET (gtk_builder_get_object (builder, "windowAbout"));
        if (!windowAbout)
        {
                g_critical (_("Widget \"%s\" is missing in file %s."),
				"windowAbout",
				UI_FILE);
        }
	gtk_widget_show (windowAbout);
	
}



void on_buttonAboutOk_released(GtkWidget *widget, gpointer data)
{
	GtkWidget * windowAbout = GTK_WIDGET (gtk_builder_get_object (builder, "windowAbout"));
        if (!windowAbout)
        {
                g_critical (_("Widget \"%s\" is missing in file %s."),
				"windowAbout",
				UI_FILE);
        }
	gtk_widget_hide (windowAbout);
}
/* Called when the window is closed */

void destroy (GtkWidget *widget, gpointer data)
{
	g_object_unref (builder);
	gtk_main_quit ();
}

void on_buttonQuit_released (GtkWidget *widget, gpointer data)
{
	destroy(widget,data);
}


static GtkWidget* create_window (void)
{
	GtkWidget *window;
	
	GError* error = NULL;

	/* Load UI from file */
	builder = gtk_builder_new ();
	if (!gtk_builder_add_from_file (builder, UI_FILE, &error))
	{
		g_critical (_("Couldn't load builder file: %s"), error->message);
		g_error_free (error);
	}

	/* Auto-connect signal handlers */
	gtk_builder_connect_signals (builder, NULL);

	/* Get the window object from the ui file */
	window = GTK_WIDGET (gtk_builder_get_object (builder, TOP_WINDOW));
        if (!window)
        {
                g_critical (_("Widget \"%s\" is missing in file %s."),
				TOP_WINDOW,
				UI_FILE);
        }

	priv = g_malloc (sizeof (struct _Private));
	/* ANJUTA: Widgets initialization for multi.ui - DO NOT REMOVE */

	//g_object_unref (builder);
	
	return window;
}


int
main (int argc, char *argv[])
{
 	GtkWidget *window;


#ifdef ENABLE_NLS
	bindtextdomain (GETTEXT_PACKAGE, PACKAGE_LOCALE_DIR);
	bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
	textdomain (GETTEXT_PACKAGE);
#endif
	bindtextdomain( "multi", "./po" );
	bind_textdomain_codeset ("multi", "UTF-8");
	textdomain( "multi" );
	
	gtk_init (&argc, &argv);
	 
	prepare_new_calculus(&a, &b, &c);
	window = create_window ();

	GtkLabel *label = GTK_LABEL (gtk_builder_get_object (builder, "labelQuestion"));

	gtk_label_set_text(GTK_LABEL(label), g_strdup_printf (_("Calculate %d x %d ="), a, b) );

	gtk_widget_show (window);

	gtk_main ();

	g_free (priv);

	return 0;
}

<?xml version="1.0" encoding="UTF-8"?>
<interface>
  <!-- interface-requires gtk+ 3.0 -->
  <object class="GtkWindow" id="windowAbout">
    <property name="can_focus">False</property>
    <property name="type">popup</property>
    <property name="resizable">False</property>
    <child>
      <object class="GtkBox" id="box3">
        <property name="width_request">300</property>
        <property name="height_request">200</property>
        <property name="visible">True</property>
        <property name="can_focus">False</property>
        <property name="orientation">vertical</property>
        <child>
          <object class="GtkBox" id="box4">
            <property name="width_request">250</property>
            <property name="height_request">180</property>
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <child>
              <object class="GtkImage" id="imageAbout">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="pixbuf">ian.jpg</property>
              </object>
              <packing>
                <property name="expand">False</property>
                <property name="fill">True</property>
                <property name="position">0</property>
              </packing>
            </child>
            <child>
              <object class="GtkFixed" id="fixed1">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <child>
                  <object class="GtkLabel" id="label4">
                    <property name="width_request">100</property>
                    <property name="height_request">80</property>
                    <property name="visible">True</property>
                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Multiplication
Yann Morère
2013</property>
                  </object>
                  <packing>
                    <property name="x">33</property>
                    <property name="y">44</property>
                  </packing>
                </child>
              </object>
              <packing>
                <property name="expand">True</property>
                <property name="fill">True</property>
                <property name="position">1</property>
              </packing>
            </child>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkButton" id="buttonAboutOk">
            <property name="label" translatable="yes">Ok</property>
            <property name="use_action_appearance">False</property>
            <property name="visible">True</property>
            <property name="can_focus">True</property>
            <property name="receives_default">True</property>
            <property name="use_action_appearance">False</property>
            <signal name="released" handler="on_buttonAboutOk_released" swapped="no"/>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">1</property>
          </packing>
        </child>
      </object>
    </child>
  </object>
  <object class="GtkWindow" id="windowMultiplication">
    <property name="visible">True</property>
    <property name="can_focus">False</property>
    <property name="title" translatable="yes">Multiplication</property>
    <property name="resizable">False</property>
    <property name="default_width">400</property>
    <property name="default_height">400</property>
    <signal name="destroy" handler="destroy" swapped="no"/>
    <signal name="delete-event" handler="destroy" swapped="no"/>
    <child>
      <object class="GtkBox" id="box1">
        <property name="width_request">250</property>
        <property name="height_request">150</property>
        <property name="visible">True</property>
        <property name="can_focus">False</property>
        <property name="orientation">vertical</property>
        <property name="homogeneous">True</property>
        <child>
          <object class="GtkLabel" id="labelQuestion">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="label" translatable="yes">Calculate ...</property>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkEntry" id="entryAnswer">
            <property name="visible">True</property>
            <property name="can_focus">True</property>
            <property name="invisible_char">●</property>
            <signal name="activate" handler="on_entryAnswer_activate" swapped="no"/>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkButton" id="buttonValidateAnswer">
            <property name="label" translatable="yes">Validate your answer</property>
            <property name="use_action_appearance">False</property>
            <property name="visible">True</property>
            <property name="can_focus">True</property>
            <property name="receives_default">True</property>
            <property name="use_action_appearance">False</property>
            <signal name="released" handler="on_buttonValidateAnswer_released" swapped="no"/>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="labelAnswer">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="label" translatable="yes">Give your answer</property>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">3</property>
          </packing>
        </child>
        <child>
          <object class="GtkBox" id="box2">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="homogeneous">True</property>
            <child>
              <object class="GtkButton" id="buttonAbout">
                <property name="label" translatable="yes">About...</property>
                <property name="use_action_appearance">False</property>
                <property name="visible">True</property>
                <property name="can_focus">True</property>
                <property name="receives_default">True</property>
                <property name="use_action_appearance">False</property>
                <signal name="released" handler="on_buttonAbout_released" swapped="no"/>
              </object>
              <packing>
                <property name="expand">False</property>
                <property name="fill">True</property>
                <property name="position">0</property>
              </packing>
            </child>
            <child>
              <object class="GtkButton" id="buttonQuit">
                <property name="label" translatable="yes">Quit</property>
                <property name="use_action_appearance">False</property>
                <property name="visible">True</property>
                <property name="can_focus">True</property>
                <property name="receives_default">True</property>
                <property name="use_action_appearance">False</property>
                <signal name="released" handler="on_buttonQuit_released" swapped="no"/>
              </object>
              <packing>
                <property name="expand">False</property>
                <property name="fill">True</property>
                <property name="position">1</property>
              </packing>
            </child>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">4</property>
          </packing>
        </child>
      </object>
    </child>
  </object>
</interface>

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