gtk2/demos/testpixbuf-save.c
Sebastian Wilhelmi d99bd97fe8 Remove assorted G_OBJECT casts where unnecessary.
2001-12-13  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>

	* gdk-pixbuf-animation.c, gdk-pixbuf-loader.c, gdk-pixpuf.c,
	io-gif-animation.c, io-gif.c, io-tiff.c, test-loaders.c: Remove
	assorted G_OBJECT casts where unnecessary.

	* gdk-pixbuf-loader.c: Call g_object_ref and g_object_unref
	instead of gdk_pixbuf_animation_ref and gdk_pixbuf_animation_unref
	resp.

	* gdk-pixbuf-csource.c, io-bmp.c, io-gif-animation.c, io-ico.c,
	io-jpeg.c, io-png.c, io-pnm.c, io-ras.c, io-tga.c, io-wbmp.c,
	io-xbm.c, io-xpm.c, test-gdk-pixbuf.c: Dito for gdk_pixbuf_ref and
	gdk_pixbuf_unref.

	* Makefile.am, pixops/Makefile.am: Compile everything with
	-DG_DISABLE_DEPRECATED -DGDK_PIXBUF_DISABLE_DEPRECATED

	* gdk-pixdata.c: Use g_ascii_strup() instead of g_strup().

	* io-xpm.c: Use g_ascii_strcasecmp() instead of g_strcasecmp().

	* demos/testpixbuf-drawable.c, demos/testpixbuf-save.c,
	demos/testpixbuf-scale.c, demos/testpixbuf.c: Call g_object_ref
	and g_object_unref instead of gdk_pixbuf_ref and gdk_pixbuf_unref
	resp.
2001-12-13 21:22:12 +00:00

259 lines
9.7 KiB
C

/* -*- 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 void
keypress_check (GtkWidget *widget, GdkEventKey *evt, gpointer data)
{
GdkPixbuf *pixbuf;
GtkDrawingArea *da = (GtkDrawingArea*)data;
GError *err = NULL;
pixbuf = (GdkPixbuf *) g_object_get_data (G_OBJECT (da), "pixbuf");
if (evt->keyval == 'q')
gtk_main_quit ();
if (evt->keyval == 's') {
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 {
GdkPixbuf *compare;
compare = gdk_pixbuf_new_from_file ("foo.jpg", &err);
if (!compare) {
fprintf (stderr, "%s", err->message);
g_error_free (err);
} else {
compare_pixbufs (pixbuf, compare, "jpeg");
g_object_unref (G_OBJECT (compare));
}
}
} 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 {
GdkPixbuf *compare;
compare = gdk_pixbuf_new_from_file ("foo.png", &err);
if (!compare) {
fprintf (stderr, "%s", err->message);
g_error_free (err);
} else {
compare_pixbufs (pixbuf, compare, "png");
g_object_unref (G_OBJECT (compare));
}
}
} else 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 int
expose_cb (GtkWidget *drawing_area, GdkEventExpose *evt, gpointer data)
{
GdkPixbuf *pixbuf;
pixbuf = (GdkPixbuf *) g_object_get_data (G_OBJECT (drawing_area),
"pixbuf");
if (gdk_pixbuf_get_has_alpha (pixbuf)) {
gdk_draw_rgb_32_image (drawing_area->window,
drawing_area->style->black_gc,
evt->area.x, evt->area.y,
evt->area.width,
evt->area.height,
GDK_RGB_DITHER_MAX,
gdk_pixbuf_get_pixels (pixbuf) +
(evt->area.y * gdk_pixbuf_get_rowstride (pixbuf)) +
(evt->area.x * gdk_pixbuf_get_n_channels (pixbuf)),
gdk_pixbuf_get_rowstride (pixbuf));
} else {
gdk_draw_rgb_image (drawing_area->window,
drawing_area->style->black_gc,
evt->area.x, evt->area.y,
evt->area.width,
evt->area.height,
GDK_RGB_DITHER_NORMAL,
gdk_pixbuf_get_pixels (pixbuf) +
(evt->area.y * gdk_pixbuf_get_rowstride (pixbuf)) +
(evt->area.x * gdk_pixbuf_get_n_channels (pixbuf)),
gdk_pixbuf_get_rowstride (pixbuf));
}
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_drawable (NULL, root, NULL,
0, 0, 0, 0, evt->width, evt->height);
g_object_set_data (G_OBJECT (drawing_area), "pixbuf", new_pixbuf);
g_object_unref (pixbuf);
}
return FALSE;
}
int
main (int argc, char **argv)
{
GdkWindow *root;
GtkWidget *window;
GtkWidget *vbox;
GtkWidget *drawing_area;
GdkPixbuf *pixbuf;
gtk_init (&argc, &argv);
gtk_widget_set_default_colormap (gdk_rgb_get_colormap ());
root = gdk_get_default_root_window ();
pixbuf = gdk_pixbuf_get_from_drawable (NULL, root, NULL,
0, 0, 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_vbox_new (FALSE, 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, "expose_event",
G_CALLBACK (expose_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;
}