2011年 06月 07日 星期二 22:54:33 CST

gtk/05 dialog/gtkapp.c

@@ -0,0 +1,177 @@
+#include <gtk/gtk.h>
+
+/***********************************************************************
+ * MACRO DEFINITION
+ * 		Some useful macro will be defined here.
+ */
+// Signal Connecting Macro
+#define S(WIDGET, EVENT, CALLBACK, DATA)\
+	g_signal_connect(G_OBJECT(WIDGET), EVENT,\
+						G_CALLBACK(CALLBACK), DATA);
+
+// Callback Function Declaring Macro
+#define C(NAME)	void NAME(GtkWidget * widget, gpointer data)
+
+/***********************************************************************
+ * Global variables
+ * 		You know what's this for.
+ */
+GtkWidget * window_main;
+GtkWidget * hbox;
+GtkWidget * vbox;
+GtkWidget * button_hello;
+GtkWidget * button_about;
+GtkWidget * button_exit;
+GtkWidget * editor;
+
+/***********************************************************************
+ * PROTOTYPE
+ * 		You know what's this for.
+ */
+C(on_button_hello_clicked);
+C(on_button_about_clicked);
+C(on_button_exit_clicked);
+
+void msgbox(GtkWindow * parent, const char * title, const char * text);
+
+/***********************************************************************
+ * main
+ * 		The main routine.
+ *		    I may write some comments like
+ *		'Create <object> - <name> -> <parent>',
+ *		which means I will create a <object> called <name>,
+ *		and then I will put it inside <parent>.
+ *		You should know it when you see them.
+ */
+int main(int argc, char * argv[])
+{
+	// Init gtk
+	gtk_init(&argc, &argv);
+
+	// Create window - window_main
+	window_main = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+	gtk_window_set_title(GTK_WINDOW(window_main), "Hello, GTK+!");
+	gtk_window_set_default_size(GTK_WINDOW(window_main), 200, 30);
+	gtk_container_set_border_width(GTK_CONTAINER(window_main), 6);
+	S(window_main, "destroy", gtk_main_quit, NULL);
+
+	// Create entry - editor -> hbox
+	editor = gtk_entry_new();
+
+	// Create button - button_hello -> hbox
+	button_hello = gtk_button_new_with_label("hello");
+	S(button_hello, "clicked", on_button_hello_clicked, NULL);
+
+	// Create button - button_about -> hbox
+	button_about = gtk_button_new_with_label("about");
+	S(button_about, "clicked", on_button_about_clicked, NULL);
+
+	// Create button - button_exit -> hbox
+	button_exit = gtk_button_new_with_label("exit");
+	S(button_exit, "clicked", on_button_exit_clicked, NULL);
+
+	// Create vbox - vbox -> window_main
+	vbox = gtk_vbox_new(FALSE, 0);
+	gtk_container_add(GTK_CONTAINER(window_main), vbox);
+
+	// Create hbox - hbox -> vbox
+	hbox = gtk_hbox_new(FALSE, 0);
+/*	gtk_box_pack_start(GTK_BOX(box ), child, 	expand, fill, padding) */
+	gtk_box_pack_start(GTK_BOX(vbox), hbox,			TRUE,	TRUE,	2);
+	gtk_box_pack_start(GTK_BOX(hbox), editor, 		TRUE,	TRUE,	2);
+	gtk_box_pack_start(GTK_BOX(hbox), button_hello,	TRUE,	TRUE,	2);
+	gtk_box_pack_start(GTK_BOX(hbox), button_about,	FALSE,	FALSE,	2);
+	gtk_box_pack_start(GTK_BOX(hbox), button_exit,	FALSE,	FALSE,	2);
+
+	// Show window and all the widget inside it.
+	gtk_widget_show_all(window_main);
+
+	// Main loop
+	gtk_main();
+
+	return 0;
+}
+
+/***********************************************************************
+ * on_button_hello_clicked
+ * 		Process events when <button_hello> is clicked.
+ */
+C(on_button_hello_clicked)
+{
+	gchar * text;
+	const gchar * name;
+
+	name = gtk_entry_get_text(GTK_ENTRY(editor));
+	if (name[0] == 0)
+		text = g_strconcat("What's your name, please?", NULL);
+	else
+		text = g_strconcat("Hello, ", name, "!", NULL);
+	msgbox(NULL, "Hello!", text);
+	g_free(text);
+}
+
+/***********************************************************************
+ * on_button_about_clicked
+ * 		Process events when <button_about> is clicked.
+ */
+C(on_button_about_clicked)
+{
+	GtkWidget *dialog;
+	GdkPixbuf *logo;
+	GError *error = NULL;
+
+	// Create about dialog - dialog
+	dialog = gtk_about_dialog_new();
+
+	// Load logo
+	logo = gdk_pixbuf_new_from_file("./logo.jpg", &error);
+	if (error == NULL)
+		gtk_about_dialog_set_logo(GTK_ABOUT_DIALOG(dialog), logo);
+	else {
+		if (error->domain == GDK_PIXBUF_ERROR)
+			g_print ("GdkPixbufError: %s\n", error->message);
+		else if (error->domain == G_FILE_ERROR)
+			g_print ("GFileError: %s\n", error->message);
+		else
+			g_print ("An error in the domain: "
+					 "%d has occurred!\n", error->domain);
+		g_error_free (error);
+	}
+
+	// Configure <dialog>
+	gtk_about_dialog_set_name (GTK_ABOUT_DIALOG (dialog),
+							   "Dialogs' Demo");
+	gtk_about_dialog_set_version (GTK_ABOUT_DIALOG (dialog), "1.0");
+	gtk_about_dialog_set_copyright (GTK_ABOUT_DIALOG (dialog),
+					"Copyleft (C) eXerigumo Clanjor, 2010-2011.");
+	gtk_about_dialog_set_comments (GTK_ABOUT_DIALOG (dialog),
+								   "Just a test for dialogs.");
+
+	gtk_dialog_run(GTK_DIALOG(dialog));
+	gtk_widget_destroy(dialog);
+}
+
+/***********************************************************************
+ * on_button_exit_clicked
+ * 		Process events when <button_exit> is clicked.
+ */
+C(on_button_exit_clicked)
+{
+	gtk_main_quit();
+}
+
+void msgbox(GtkWindow * parent, const char * title, const char * text)
+{
+	GtkWidget * dialog;
+
+	// Create message dialog - dialog -> parent
+	dialog = gtk_message_dialog_new(parent, GTK_DIALOG_MODAL,
+									GTK_MESSAGE_INFO,
+									GTK_BUTTONS_OK,
+									"%s", text);
+	gtk_window_set_title(GTK_WINDOW(dialog), title);
+
+	gtk_dialog_run(GTK_DIALOG(dialog));
+	gtk_widget_destroy(dialog);
+}
+

gtk/05 dialog/makefile

@@ -0,0 +1,31 @@
+
+CC = gcc
+DEBUG = -g
+LIBS = gtk+-2.0
+
+PROG_NAME = gtkapp
+INCS = 
+SRCS = ${PROG_NAME}.c
+
+OBJS = ${SRCS:.c=.o}
+
+CFLAGS = `pkg-config --cflags ${LIBS}` $(DEBUG) -Wall
+LDFLAGS = `pkg-config --libs ${LIBS}` $(DEBUG) -Wall
+
+all: ${PROG_NAME}
+debug: all
+	./${PROG_NAME}
+
+${PROG_NAME}: ${OBJS}
+	${CC} -o ${PROG_NAME} ${OBJS} ${LDFLAGS}
+
+${OBJS}:${INCS}
+
+.c.o:
+	${CC} -c $< ${CFLAGS}
+
+clean:
+	rm -f *.o ${PROG_NAME}
+
+rebuild: clean all
+