initial gtk2 examples

6 files changed, 247 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..336fc6e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.cproject
+.settings
+.project
+*.o
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c76e00b
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,25 @@
+BINS = gtkhello1 gtkkeypress
+BINS3 = gtkimgpaint
+
+CC = gcc
+CFLAGS = -Wall -std=gnu99 -pedantic
+DBGFLAGS = -g -O0
+ifdef MYDEBUG
+    CFLAGS += $(DBGFLAGS) -D DEBUG
+else
+    CFLAGS += -O2 -mtune=native -march=native
+endif
+LDFLAGS = -lm
+
+all: $(BINS) $(BINS3)
+
+$(BINS): %: %.c
+	$(CC) `pkg-config --cflags --libs gtk+-2.0` $(CFLAGS) $(LDFLAGS) $^ -o $@
+
+$(BINS3): %: %.c
+	$(CC) `pkg-config --cflags --libs gtk+-3.0` $(CFLAGS) $(LDFLAGS) $^ -o $@
+
+.PHONY: clean
+
+clean:
+	@rm -f ./$(BINS) $(BINS3)
diff --git a/envsetup.sh b/envsetup.sh
new file mode 100755
index 0000000..c0d178c
--- /dev/null
+++ b/envsetup.sh
@@ -0,0 +1,6 @@
+export ACLOCAL="aclocal -I /usr/local/share/aclocal"
+export PKG_CONFIG_PATH="/usr/local/lib/pkgconfig:/usr/local/share/pkgconfig"
+export LD_LIBRARY_PATH=/usr/local/lib
+
+export MYDEBUG=1
+export GTK_DEBUG=misc
diff --git a/gtkhello1.c b/gtkhello1.c
new file mode 100644
index 0000000..a4107a8
--- /dev/null
+++ b/gtkhello1.c
@@ -0,0 +1,52 @@
+#include <stdlib.h>
+#include <gtk/gtk.h>
+
+/* 1st arg is the button widget, second is the win ptr being passed around */
+static void helloWorld(GtkWidget *wid, GtkWidget *win)
+{
+    GtkWidget *dialog = NULL;
+
+    dialog = gtk_message_dialog_new(GTK_WINDOW (win), GTK_DIALOG_MODAL, GTK_MESSAGE_INFO, GTK_BUTTONS_CLOSE, "Hello World!");
+    gtk_window_set_position(GTK_WINDOW (dialog), GTK_WIN_POS_CENTER);
+    gtk_dialog_run(GTK_DIALOG (dialog));
+    gtk_widget_destroy(dialog);
+}
+
+int main(int argc, char *argv[])
+{
+    GtkWidget *button = NULL;
+    GtkWidget *win = NULL;
+    GtkWidget *vbox = NULL;
+
+    /* Initialize GTK+ */
+    g_log_set_handler("Gtk", G_LOG_LEVEL_WARNING, (GLogFunc) gtk_false, NULL);
+    gtk_init(&argc, &argv);
+    g_log_set_handler("Gtk", G_LOG_LEVEL_WARNING, g_log_default_handler, NULL);
+
+    /* Create the main window */
+    win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+    gtk_container_set_border_width(GTK_CONTAINER (win), 8);
+    gtk_window_set_title(GTK_WINDOW (win), "Hello World");
+    gtk_window_set_position(GTK_WINDOW (win), GTK_WIN_POS_CENTER);
+    gtk_widget_realize(win);
+    g_signal_connect(win, "destroy", gtk_main_quit, NULL);
+
+    /* Create a vertical box with buttons */
+    vbox = gtk_vbox_new(TRUE, 6);
+    gtk_container_add(GTK_CONTAINER (win), vbox);
+
+    button = gtk_button_new_from_stock(GTK_STOCK_DIALOG_INFO);
+    g_signal_connect(G_OBJECT (button), "clicked", G_CALLBACK (helloWorld), (gpointer) win);
+    gtk_box_pack_start(GTK_BOX (vbox), button, TRUE, TRUE, 0);
+
+    button = gtk_button_new_from_stock(GTK_STOCK_CLOSE);
+    g_signal_connect(button, "clicked", gtk_main_quit, NULL);
+    gtk_box_pack_start(GTK_BOX (vbox), button, TRUE, TRUE, 0);
+
+    /* Enter the main loop */
+    gtk_widget_show_all(win);
+    gtk_main();
+
+    return 0;
+}
+
diff --git a/gtkimgpaint.c b/gtkimgpaint.c
new file mode 100644
index 0000000..853c03f
--- /dev/null
+++ b/gtkimgpaint.c
@@ -0,0 +1,91 @@
+#include <gtk/gtk.h>
+#include <glib/gi18n.h>
+
+static void
+on_open_image (GtkButton* button, gpointer user_data)
+{
+	GtkWidget *image = GTK_WIDGET (user_data);
+	GtkWidget *toplevel = gtk_widget_get_toplevel (image);
+	GtkFileFilter *filter = gtk_file_filter_new ();
+	GtkWidget *dialog = gtk_file_chooser_dialog_new (_("Open image"),
+	                                                 GTK_WINDOW (toplevel),
+	                                                 GTK_FILE_CHOOSER_ACTION_OPEN,
+	                                                 GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
+	                                                 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+	                                                 NULL);
+
+	gtk_file_filter_add_pixbuf_formats (filter);
+	gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog),
+	                             filter);
+
+	switch (gtk_dialog_run (GTK_DIALOG (dialog)))
+	{
+		case GTK_RESPONSE_ACCEPT:
+		{
+			gchar *filename = 
+				gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
+			gtk_image_set_from_file (GTK_IMAGE (image), filename);
+			break;
+		}
+		default:
+			break;
+	}
+	gtk_widget_destroy (dialog);
+}
+
+
+static GtkWidget*
+create_window (void)
+{
+	GtkWidget *window;
+	GtkWidget *button;
+	GtkWidget *image;
+	GtkWidget *box;
+
+	/* Set up the UI */
+	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+	gtk_window_set_title (GTK_WINDOW (window), "image-viewer-c");
+
+	box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
+	button = gtk_button_new_with_label (_("Open image"));
+	image = gtk_image_new ();
+
+	gtk_box_pack_start (GTK_BOX (box), image, TRUE, TRUE, 0);
+	gtk_box_pack_start (GTK_BOX (box), button, FALSE, FALSE, 0);
+
+	gtk_container_add (GTK_CONTAINER (window), box);
+
+	/* Connect signals */
+
+	/* Show open dialog when opening a file */
+	g_signal_connect (button, "clicked", G_CALLBACK (on_open_image), image);
+
+	/* Exit when the window is closed */
+	g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
+
+	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
+
+
+	gtk_init (&argc, &argv);
+
+	window = create_window ();
+	gtk_widget_show_all (window);
+
+	gtk_main ();
+	return 0;
+}
+
diff --git a/gtkkeypress.c b/gtkkeypress.c
new file mode 100644
index 0000000..363bd3b
--- /dev/null
+++ b/gtkkeypress.c
@@ -0,0 +1,69 @@
+#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
+
+gboolean
+on_key_press (GtkWidget *widget, GdkEventKey *event, gpointer user_data);
+
+int main (int argc, char *argv[])
+{
+  GtkWidget *window;
+
+  gtk_init (&argc, &argv);
+
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+
+  g_signal_connect (G_OBJECT (window), "destroy", G_CALLBACK (gtk_main_quit), NULL);
+  g_signal_connect (G_OBJECT (window), "key_press_event", G_CALLBACK (on_key_press), NULL);
+
+  gtk_widget_show_all (window);
+
+  gtk_main ();
+
+  return 0;
+}
+
+gboolean
+on_key_press (GtkWidget *widget, GdkEventKey *event, gpointer user_data)
+{
+  switch (event->keyval)
+  {
+    case GDK_p:
+      printf("key pressed: %s\n", "p");
+      break;
+    case GDK_S:
+    case GDK_s:
+      if (event->state & GDK_SHIFT_MASK)
+      {
+        printf("key pressed: %s\n", "shift + s");
+      }
+      else if (event->state & GDK_CONTROL_MASK)
+      {
+        printf("key pressed: %s\n", "ctrl + s");
+      }
+      else
+      {
+        printf("key pressed: %s\n", "s");
+      }
+      break;
+    case GDK_m:
+      if (event->state & GDK_SHIFT_MASK)
+      {
+        printf("key pressed: %s\n", "shift + m");
+      }
+      else if (event->state & GDK_CONTROL_MASK)
+      {
+        printf("key pressed: %s\n", "ctrl + m");
+      }
+      else
+      {
+        printf("key pressed: %s\n", "m");
+      }
+      break;
+
+    default:
+      return FALSE; 
+  }
+
+  return FALSE; 
+}
+