Move demos around

The pixbuf-demo gets its own subdirectory, the other small
tests move from demos/ to tests/.

1 files changed, 389 insertions, 0 deletions

diff --git a/tests/testpixbuf-save.c b/tests/testpixbuf-save.c
new file mode 100644
index 0000000000..35ef367474
--- /dev/null
+++ b/tests/testpixbuf-save.c
@@ -0,0 +1,389 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
+
+#include "config.h"
+#include <stdio.h>
+
+#include <gtk/gtk.h>
+
+static void
+compare_pixbufs (GdkPixbuf *pixbuf, GdkPixbuf *compare, const gchar *file_type)
+{
+        if ((gdk_pixbuf_get_width (pixbuf) !=
+             gdk_pixbuf_get_width (compare)) ||
+            (gdk_pixbuf_get_height (pixbuf) !=
+             gdk_pixbuf_get_height (compare)) ||
+            (gdk_pixbuf_get_n_channels (pixbuf) !=
+             gdk_pixbuf_get_n_channels (compare)) ||
+            (gdk_pixbuf_get_has_alpha (pixbuf) !=
+             gdk_pixbuf_get_has_alpha (compare)) ||
+            (gdk_pixbuf_get_bits_per_sample (pixbuf) !=
+             gdk_pixbuf_get_bits_per_sample (compare))) {
+                fprintf (stderr,
+                         "saved %s file differs from copy in memory\n",
+                         file_type);
+        } else {
+                guchar *orig_pixels;
+                guchar *compare_pixels;
+                gint    orig_rowstride;
+                gint    compare_rowstride;
+                gint    width;
+                gint    height;
+                gint    bytes_per_pixel;
+                gint    x, y;
+                guchar *p1, *p2;
+                gint    count = 0;
+
+                orig_pixels = gdk_pixbuf_get_pixels (pixbuf);
+                compare_pixels = gdk_pixbuf_get_pixels (compare);
+
+                orig_rowstride = gdk_pixbuf_get_rowstride (pixbuf);
+                compare_rowstride = gdk_pixbuf_get_rowstride (compare);
+
+                width = gdk_pixbuf_get_width (pixbuf);
+                height = gdk_pixbuf_get_height (pixbuf);
+
+                /*  well...  */
+                bytes_per_pixel = gdk_pixbuf_get_n_channels (pixbuf);
+
+                p1 = orig_pixels;
+                p2 = compare_pixels;
+
+                for (y = 0; y < height; y++) {
+                        for (x = 0; x < width * bytes_per_pixel; x++)
+                                count += (*p1++ != *p2++);
+
+                        orig_pixels += orig_rowstride;
+                        compare_pixels += compare_rowstride;
+
+                        p1 = orig_pixels;
+                        p2 = compare_pixels;
+                }
+
+                if (count > 0) {
+                        fprintf (stderr,
+                                 "saved %s file differs from copy in memory\n",
+                                 file_type);
+                }
+        }
+}
+
+static gboolean
+save_to_loader (const gchar *buf, gsize count, GError **err, gpointer data)
+{
+        GdkPixbufLoader *loader = data;
+
+        return gdk_pixbuf_loader_write (loader, (const guchar *)buf, count, err);
+}
+
+static GdkPixbuf *
+buffer_to_pixbuf (const gchar *buf, gsize count, GError **err)
+{
+        GdkPixbufLoader *loader;
+        GdkPixbuf *pixbuf;
+
+        loader = gdk_pixbuf_loader_new ();
+        if (gdk_pixbuf_loader_write (loader, (const guchar *)buf, count, err) &&
+            gdk_pixbuf_loader_close (loader, err)) {
+                pixbuf = g_object_ref (gdk_pixbuf_loader_get_pixbuf (loader));
+                g_object_unref (loader);
+                return pixbuf;
+        } else {
+                return NULL;
+        }
+}
+
+static void
+do_compare (GdkPixbuf *pixbuf, GdkPixbuf *compare, GError *err)
+{
+        if (compare == NULL) {
+                fprintf (stderr, "%s", err->message);
+                g_error_free (err);
+        } else {
+                compare_pixbufs (pixbuf, compare, "jpeg");
+                g_object_unref (compare);
+        }
+}
+
+static void
+keypress_check (GtkWidget *widget, GdkEventKey *evt, gpointer data)
+{
+        GdkPixbuf *pixbuf;
+        GtkDrawingArea *da = (GtkDrawingArea*)data;
+        GError *err = NULL;
+        gchar *buffer;
+        gsize count;
+        GdkPixbufLoader *loader;
+
+        pixbuf = (GdkPixbuf *) g_object_get_data (G_OBJECT (da), "pixbuf");
+
+        if (evt->keyval == 'q')
+                gtk_main_quit ();
+
+        if (evt->keyval == 's' && (evt->state & GDK_CONTROL_MASK)) {
+                /* save to callback */
+                if (pixbuf == NULL) {
+                        fprintf (stderr, "PIXBUF NULL\n");
+                        return;
+                }	
+
+                loader = gdk_pixbuf_loader_new ();
+                if (!gdk_pixbuf_save_to_callback (pixbuf, save_to_loader, loader, "jpeg",
+                                                  &err,
+                                                  "quality", "100",
+                                                  NULL) ||
+                    !gdk_pixbuf_loader_close (loader, &err)) {
+                        fprintf (stderr, "%s", err->message);
+                        g_error_free (err);
+                } else {
+                        do_compare (pixbuf,
+                                    g_object_ref (gdk_pixbuf_loader_get_pixbuf (loader)),
+                                    err);
+                        g_object_unref (loader);
+                }
+        }
+        else if (evt->keyval == 'S') {
+                /* save to buffer */
+                if (!gdk_pixbuf_save_to_buffer (pixbuf, &buffer, &count, "jpeg",
+                                                &err,
+                                                "quality", "100",
+                                                NULL)) {
+                        fprintf (stderr, "%s", err->message);
+                        g_error_free (err);
+                } else {
+                        do_compare (pixbuf,
+                                    buffer_to_pixbuf (buffer, count, &err),
+                                    err);
+                }
+        }
+        else if (evt->keyval == 's') {
+                /* save normally */
+                if (pixbuf == NULL) {
+                        fprintf (stderr, "PIXBUF NULL\n");
+                        return;
+                }	
+
+                if (!gdk_pixbuf_save (pixbuf, "foo.jpg", "jpeg",
+                                      &err,
+                                      "quality", "100",
+                                      NULL)) {
+                        fprintf (stderr, "%s", err->message);
+                        g_error_free (err);
+                } else {
+                        do_compare (pixbuf,
+                                    gdk_pixbuf_new_from_file ("foo.jpg", &err),
+                                    err);
+                }
+        }
+
+        if (evt->keyval == 'p' && (evt->state & GDK_CONTROL_MASK)) {
+                /* save to callback */
+                if (pixbuf == NULL) {
+                        fprintf (stderr, "PIXBUF NULL\n");
+                        return;
+                }
+
+                loader = gdk_pixbuf_loader_new ();
+                if (!gdk_pixbuf_save_to_callback (pixbuf, save_to_loader, loader, "png",
+                                                  &err,
+                                                  "tEXt::Software", "testpixbuf-save",
+                                                  NULL)
+                    || !gdk_pixbuf_loader_close (loader, &err)) {
+                        fprintf (stderr, "%s", err->message);
+                        g_error_free (err);
+                } else {
+                        do_compare (pixbuf,
+                                    g_object_ref (gdk_pixbuf_loader_get_pixbuf (loader)),
+                                    err);
+                        g_object_unref (loader);
+                }
+        }
+        else if (evt->keyval == 'P') {
+                /* save to buffer */
+                if (!gdk_pixbuf_save_to_buffer (pixbuf, &buffer, &count, "png",
+                                                &err,
+                                                "tEXt::Software", "testpixbuf-save",
+                                                NULL)) {
+                        fprintf (stderr, "%s", err->message);
+                        g_error_free (err);
+                } else {
+                        do_compare (pixbuf,
+                                    buffer_to_pixbuf (buffer, count, &err),
+                                    err);
+                }
+        }
+        else if (evt->keyval == 'p') {
+                if (pixbuf == NULL) {
+                        fprintf (stderr, "PIXBUF NULL\n");
+                        return;
+                }
+
+                if (!gdk_pixbuf_save (pixbuf, "foo.png", "png", 
+                                      &err,
+                                      "tEXt::Software", "testpixbuf-save",
+                                      NULL)) {
+                        fprintf (stderr, "%s", err->message);
+                        g_error_free (err);
+                } else {
+                        do_compare(pixbuf,
+                                   gdk_pixbuf_new_from_file ("foo.png", &err),
+                                   err);
+                }
+        }
+
+        if (evt->keyval == 'i' && (evt->state & GDK_CONTROL_MASK)) {
+                /* save to callback */
+                if (pixbuf == NULL) {
+                        fprintf (stderr, "PIXBUF NULL\n");
+                        return;
+                }
+
+                loader = gdk_pixbuf_loader_new ();
+                if (!gdk_pixbuf_save_to_callback (pixbuf, save_to_loader, loader, "ico",
+                                                  &err,
+                                                  NULL)
+                    || !gdk_pixbuf_loader_close (loader, &err)) {
+                        fprintf (stderr, "%s", err->message);
+                        g_error_free (err);
+                } else {
+                        do_compare (pixbuf,
+                                    g_object_ref (gdk_pixbuf_loader_get_pixbuf (loader)),
+                                    err);
+                        g_object_unref (loader);
+                }
+        }
+        else if (evt->keyval == 'I') {
+                /* save to buffer */
+                if (!gdk_pixbuf_save_to_buffer (pixbuf, &buffer, &count, "ico",
+                                                &err,
+                                                NULL)) {
+                        fprintf (stderr, "%s", err->message);
+                        g_error_free (err);
+                } else {
+                        do_compare (pixbuf,
+                                    buffer_to_pixbuf (buffer, count, &err),
+                                    err);
+                }
+        }
+        else if (evt->keyval == 'i') {
+                if (pixbuf == NULL) {
+                        fprintf (stderr, "PIXBUF NULL\n");
+                        return;
+                }
+
+                if (!gdk_pixbuf_save (pixbuf, "foo.ico", "ico", 
+                                      &err,
+                                      NULL)) {
+                        fprintf (stderr, "%s", err->message);
+                        g_error_free (err);
+                } else {
+                        do_compare(pixbuf,
+                                   gdk_pixbuf_new_from_file ("foo.ico", &err),
+                                   err);
+                }
+        }
+
+        if (evt->keyval == 'a') {
+                if (pixbuf == NULL) {
+                        fprintf (stderr, "PIXBUF NULL\n");
+                        return;
+                } else {
+                        GdkPixbuf *alpha_buf;
+
+                        alpha_buf = gdk_pixbuf_add_alpha (pixbuf,
+                                                          FALSE, 0, 0, 0);
+
+                        g_object_set_data_full (G_OBJECT (da),
+                                                "pixbuf", alpha_buf,
+                                                (GDestroyNotify) g_object_unref);
+                }
+        }
+}
+
+
+static int
+close_app (GtkWidget *widget, gpointer data)
+{
+        gtk_main_quit ();
+        return TRUE;
+}
+
+static gboolean
+draw_cb (GtkWidget *drawing_area, cairo_t *cr, gpointer data)
+{
+        GdkPixbuf *pixbuf;
+         
+        pixbuf = (GdkPixbuf *) g_object_get_data (G_OBJECT (drawing_area),
+						  "pixbuf");
+
+        gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
+        cairo_paint (cr);
+
+        return FALSE;
+}
+
+static int
+configure_cb (GtkWidget *drawing_area, GdkEventConfigure *evt, gpointer data)
+{
+        GdkPixbuf *pixbuf;
+                           
+        pixbuf = (GdkPixbuf *) g_object_get_data (G_OBJECT (drawing_area),   
+						  "pixbuf");
+    
+        g_print ("X:%d Y:%d\n", evt->width, evt->height);
+        if (evt->width != gdk_pixbuf_get_width (pixbuf) || evt->height != gdk_pixbuf_get_height (pixbuf)) {
+                GdkWindow *root;
+                GdkPixbuf *new_pixbuf;
+
+                root = gdk_get_default_root_window ();
+                new_pixbuf = gdk_pixbuf_get_from_window (root,
+                                                         0, 0, evt->width, evt->height);
+                g_object_set_data_full (G_OBJECT (drawing_area), "pixbuf", new_pixbuf,
+                                        (GDestroyNotify) g_object_unref);
+        }
+
+        return FALSE;
+}
+
+int
+main (int argc, char **argv)
+{   
+        GdkWindow     *root;
+        GtkWidget     *window;
+        GtkWidget     *vbox;
+        GtkWidget     *drawing_area;
+        GdkPixbuf     *pixbuf;    
+   
+        gtk_init (&argc, &argv);   
+
+        root = gdk_get_default_root_window ();
+        pixbuf = gdk_pixbuf_get_from_window (root,
+                                             0, 0, 150, 160);
+   
+        window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+        g_signal_connect (window, "delete_event",
+			  G_CALLBACK (close_app), NULL);
+        g_signal_connect (window, "destroy",   
+			  G_CALLBACK (close_app), NULL);
+   
+        vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+        gtk_container_add (GTK_CONTAINER (window), vbox);  
+   
+        drawing_area = gtk_drawing_area_new ();
+        gtk_widget_set_size_request (GTK_WIDGET (drawing_area),
+                                     gdk_pixbuf_get_width (pixbuf),
+                                     gdk_pixbuf_get_height (pixbuf));
+        g_signal_connect (drawing_area, "draw",
+			  G_CALLBACK (draw_cb), NULL);
+
+        g_signal_connect (drawing_area, "configure_event",
+			  G_CALLBACK (configure_cb), NULL);
+        g_signal_connect (window, "key_press_event", 
+			  G_CALLBACK (keypress_check), drawing_area);    
+        g_object_set_data_full (G_OBJECT (drawing_area), "pixbuf", pixbuf,
+                                (GDestroyNotify) g_object_unref);
+        gtk_box_pack_start (GTK_BOX (vbox), drawing_area, TRUE, TRUE, 0);
+   
+        gtk_widget_show_all (window);
+        gtk_main ();
+        return 0;
+}