static void
uni_nav_update_pixbuf (UniNav * nav)
{
if (nav->pixbuf)
{
g_object_unref (nav->pixbuf);
nav->pixbuf = NULL;
}
GdkPixbuf *pixbuf = uni_image_view_get_pixbuf (nav->view);
if (!pixbuf)
return;
Size pw = uni_nav_get_preview_size (nav);
nav->pixbuf = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (pixbuf),
gdk_pixbuf_get_has_alpha (pixbuf),
8, pw.width, pw.height);
uni_pixbuf_scale_blend (pixbuf, nav->pixbuf,
0, 0, pw.width, pw.height,
0, 0,
uni_nav_get_zoom (nav),
GDK_INTERP_BILINEAR, 0, 0);
// Lower the flag so the pixbuf isn't recreated more than
// necessarily.
nav->update_when_shown = FALSE;
}
void
vnr_properties_dialog_update_image(VnrPropertiesDialog *dialog)
{
gchar *width_str, *height_str;
set_new_pixbuf(dialog, uni_image_view_get_pixbuf(UNI_IMAGE_VIEW(dialog->vnr_win->view)));
gtk_image_set_from_pixbuf (GTK_IMAGE(dialog->image) , dialog->thumbnail);
width_str = g_strdup_printf("%i px", dialog->vnr_win->current_image_width);
height_str = g_strdup_printf("%i px", dialog->vnr_win->current_image_height);
gtk_label_set_text(GTK_LABEL(dialog->width_label), width_str);
gtk_label_set_text(GTK_LABEL(dialog->height_label), height_str);
g_free(width_str);
g_free(height_str);
}
static Size
uni_nav_get_preview_size (UniNav * nav)
{
GdkPixbuf *pixbuf = uni_image_view_get_pixbuf (nav->view);
if (!pixbuf)
return (Size)
{
UNI_NAV_MAX_WIDTH, UNI_NAV_MAX_HEIGHT};
int img_width = gdk_pixbuf_get_width (pixbuf);
int img_height = gdk_pixbuf_get_height (pixbuf);
gdouble zoom = uni_nav_get_zoom (nav);
Size s;
s.width = (int) (img_width * zoom + 0.5);
s.height = (int) (img_height * zoom + 0.5);
return s;
}
static gdouble
uni_nav_get_zoom (UniNav * nav)
{
GdkPixbuf *pixbuf = uni_image_view_get_pixbuf (nav->view);
/* If there is no image, we can't get it's width and height */
if (!pixbuf)
{
return 0.0;
}
int img_width = gdk_pixbuf_get_width (pixbuf);
int img_height = gdk_pixbuf_get_height (pixbuf);
gdouble width_zoom = (gdouble) UNI_NAV_MAX_WIDTH / (gdouble) img_width;
gdouble height_zoom = (gdouble) UNI_NAV_MAX_HEIGHT / (gdouble) img_height;
return MIN (width_zoom, height_zoom);
}
static GtkWidget *
vnr_crop_build_dialog (VnrCrop *crop)
{
GtkBuilder *builder;
GtkWidget *window;
GdkPixbuf *original;
GdkPixbuf *preview;
GError *error = NULL;
builder = gtk_builder_new ();
gtk_builder_add_from_file (builder, CROP_UI_PATH, &error);
if (error != NULL)
{
g_warning ("%s\n", error->message);
g_object_unref(builder);
return NULL;
}
window = GTK_WIDGET (gtk_builder_get_object (builder, "crop-dialog"));
gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(crop->vnr_win));
original = uni_image_view_get_pixbuf(UNI_IMAGE_VIEW(crop->vnr_win->view));
gdouble width, height;
width = crop->vnr_win->current_image_width;
height = crop->vnr_win->current_image_height;
vnr_tools_fit_to_size_double(&height, &width, 400,400);
crop->width = width;
crop->height = height;
crop->zoom = ( width/crop->vnr_win->current_image_width
+ height/crop->vnr_win->current_image_height )/2;
preview = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (original),
gdk_pixbuf_get_has_alpha (original),
gdk_pixbuf_get_bits_per_sample (original),
width, height);
uni_pixbuf_scale_blend(original, preview, 0, 0, width, height, 0, 0,
crop->zoom, GDK_INTERP_BILINEAR, 0, 0);
crop->preview_pixbuf = preview;
crop->image = GTK_WIDGET (gtk_builder_get_object (builder, "main-image"));
gtk_widget_set_size_request(crop->image, width, height);
crop->spin_x = GTK_SPIN_BUTTON (gtk_builder_get_object (builder, "spin-x"));
gtk_spin_button_set_range (crop->spin_x, 0, crop->vnr_win->current_image_width - 1);
gtk_spin_button_set_increments (crop->spin_x, 1, 10);
crop->spin_y = GTK_SPIN_BUTTON (gtk_builder_get_object (builder, "spin-y"));
gtk_spin_button_set_range (crop->spin_y, 0, crop->vnr_win->current_image_height - 1);
gtk_spin_button_set_increments (crop->spin_y, 1, 10);
crop->spin_width = GTK_SPIN_BUTTON (gtk_builder_get_object (builder, "spin-width"));
gtk_spin_button_set_range (crop->spin_width, 1, crop->vnr_win->current_image_width);
gtk_spin_button_set_increments (crop->spin_width, 1, 10);
gtk_spin_button_set_value (crop->spin_width, crop->vnr_win->current_image_width);
crop->spin_height = GTK_SPIN_BUTTON (gtk_builder_get_object (builder, "spin-height"));
gtk_spin_button_set_range (crop->spin_height, 1, crop->vnr_win->current_image_height);
gtk_spin_button_set_increments (crop->spin_height, 1, 10);
gtk_spin_button_set_value (crop->spin_height, crop->vnr_win->current_image_height);
gtk_widget_set_events (crop->image, GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK|GDK_BUTTON_MOTION_MASK);
g_signal_connect (crop->image, "expose-event",
G_CALLBACK (drawable_expose_cb), crop);
g_signal_connect (crop->image, "button-press-event",
G_CALLBACK (drawable_button_press_cb), crop);
g_signal_connect (crop->image, "button-release-event",
G_CALLBACK (drawable_button_release_cb), crop);
g_signal_connect (crop->image, "motion-notify-event",
G_CALLBACK (drawable_motion_cb), crop);
g_signal_connect (crop->spin_width, "value-changed",
G_CALLBACK (spin_width_cb), crop);
g_signal_connect (crop->spin_x, "value-changed",
G_CALLBACK (spin_x_cb), crop);
g_signal_connect (crop->spin_height, "value-changed",
G_CALLBACK (spin_height_cb), crop);
g_signal_connect (crop->spin_y, "value-changed",
G_CALLBACK (spin_y_cb), crop);
g_object_unref(builder);
return window;
}
