Move demos around

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

1 files changed, 152 insertions, 0 deletions

diff --git a/tests/testpixbuf-scale.c b/tests/testpixbuf-scale.c
new file mode 100644
index 0000000000..65eb2b128d
--- /dev/null
+++ b/tests/testpixbuf-scale.c
@@ -0,0 +1,152 @@
+#include "config.h"
+#include <gtk/gtk.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+GdkInterpType interp_type = GDK_INTERP_BILINEAR;
+int overall_alpha = 255;
+GdkPixbuf *pixbuf;
+GtkWidget *darea;
+  
+void
+set_interp_type (GtkWidget *widget, gpointer data)
+{
+  guint types[] = { GDK_INTERP_NEAREST,
+                    GDK_INTERP_BILINEAR,
+                    GDK_INTERP_TILES,
+                    GDK_INTERP_HYPER };
+
+  interp_type = types[gtk_combo_box_get_active (GTK_COMBO_BOX (widget))];
+  gtk_widget_queue_draw (darea);
+}
+
+void
+overall_changed_cb (GtkAdjustment *adjustment, gpointer data)
+{
+  if (gtk_adjustment_get_value (adjustment) != overall_alpha)
+    {
+      overall_alpha = gtk_adjustment_get_value (adjustment);
+      gtk_widget_queue_draw (darea);
+    }
+}
+
+gboolean
+draw_cb (GtkWidget *widget, cairo_t *cr, gpointer data)
+{
+  GdkPixbuf *dest;
+  int width, height;
+
+  width = gtk_widget_get_allocated_width (widget);
+  height = gtk_widget_get_allocated_height (widget);
+
+  dest = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, width, height);
+
+  gdk_pixbuf_composite_color (pixbuf, dest,
+			      0, 0, width, height,
+			      0, 0,
+                              (double) width / gdk_pixbuf_get_width (pixbuf),
+                              (double) height / gdk_pixbuf_get_height (pixbuf),
+			      interp_type, overall_alpha,
+			      0, 0, 16, 0xaaaaaa, 0x555555);
+
+  gdk_cairo_set_source_pixbuf (cr, dest, 0, 0);
+  cairo_paint (cr);
+
+  g_object_unref (dest);
+  
+  return TRUE;
+}
+
+int
+main(int argc, char **argv)
+{
+	GtkWidget *window, *vbox;
+        GtkWidget *combo_box;
+	GtkWidget *alignment;
+	GtkWidget *hbox, *label, *hscale;
+	GtkAdjustment *adjustment;
+	GtkRequisition scratch_requisition;
+        const gchar *creator;
+        GError *error;
+
+	gtk_init (&argc, &argv);
+
+	if (argc != 2) {
+		fprintf (stderr, "Usage: testpixbuf-scale FILE\n");
+		exit (1);
+	}
+
+        error = NULL;
+	pixbuf = gdk_pixbuf_new_from_file (argv[1], &error);
+	if (!pixbuf) {
+		fprintf (stderr, "Cannot load image: %s\n",
+                         error->message);
+                g_error_free (error);
+		exit(1);
+	}
+
+        creator = gdk_pixbuf_get_option (pixbuf, "tEXt::Software");
+        if (creator)
+                g_print ("%s was created by '%s'\n", argv[1], creator);
+
+	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+	g_signal_connect (window, "destroy",
+			  G_CALLBACK (gtk_main_quit), NULL);
+	
+	vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+	gtk_container_add (GTK_CONTAINER (window), vbox);
+
+        combo_box = gtk_combo_box_text_new ();
+
+        gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo_box), "NEAREST");
+        gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo_box), "BILINEAR");
+        gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo_box), "TILES");
+        gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo_box), "HYPER");
+
+        gtk_combo_box_set_active (GTK_COMBO_BOX (combo_box), 1);
+
+        g_signal_connect (combo_box, "changed",
+                          G_CALLBACK (set_interp_type),
+                          NULL);
+	
+	alignment = gtk_alignment_new (0.0, 0.0, 0.0, 0.5);
+	gtk_box_pack_start (GTK_BOX (vbox), alignment, FALSE, FALSE, 0);
+
+	hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+	gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+
+	label = gtk_label_new ("Overall Alpha:");
+	gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
+
+	adjustment = gtk_adjustment_new (overall_alpha, 0, 255, 1, 10, 0);
+	g_signal_connect (adjustment, "value_changed",
+			  G_CALLBACK (overall_changed_cb), NULL);
+	
+	hscale = gtk_scale_new (GTK_ORIENTATION_HORIZONTAL, adjustment);
+	gtk_scale_set_digits (GTK_SCALE (hscale), 0);
+	gtk_box_pack_start (GTK_BOX (hbox), hscale, TRUE, TRUE, 0);
+
+	gtk_container_add (GTK_CONTAINER (alignment), combo_box);
+	gtk_widget_show_all (vbox);
+
+	/* Compute the size without the drawing area, so we know how big to make the default size */
+        gtk_widget_get_preferred_size ( (vbox),
+                                   &scratch_requisition, NULL);
+
+	darea = gtk_drawing_area_new ();
+	gtk_box_pack_start (GTK_BOX (vbox), darea, TRUE, TRUE, 0);
+
+	g_signal_connect (darea, "draw",
+			  G_CALLBACK (draw_cb), NULL);
+
+	gtk_window_set_default_size (GTK_WINDOW (window),
+				     gdk_pixbuf_get_width (pixbuf),
+				     scratch_requisition.height + gdk_pixbuf_get_height (pixbuf));
+	
+	gtk_widget_show_all (window);
+
+	gtk_main ();
+
+	return 0;
+}