static gboolean
button_press_event_cb (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
{
PhotosPrintPreview *preview = PHOTOS_PRINT_PREVIEW (user_data);
preview->priv->cursorx = event->x;
preview->priv->cursory = event->y;
switch (event->button)
{
case 1:
preview->priv->grabbed = press_inside_image_area (preview, event->x, event->y);
break;
default:
break;
}
if (preview->priv->grabbed)
{
gtk_widget_queue_draw (GTK_WIDGET (preview));
}
gtk_widget_grab_focus (preview->priv->area);
return FALSE;
}
gboolean
photos_print_preview_point_in_image_area (PhotosPrintPreview *preview, guint x, guint y)
{
g_return_val_if_fail (PHOTOS_IS_PRINT_PREVIEW (preview), FALSE);
return press_inside_image_area (preview, x, y);
}
static gboolean
motion_notify_event_cb (GtkWidget *widget,
GdkEventMotion *event,
gpointer user_data)
{
EomPrintPreviewPrivate *priv = EOM_PRINT_PREVIEW (user_data)->priv;
gdouble dx, dy;
GtkAllocation allocation;
if (priv->grabbed) {
dx = event->x - priv->cursorx;
dy = event->y - priv->cursory;
gtk_widget_get_allocation (widget, &allocation);
/* Make sure the image stays inside the margins */
priv->image_x_align += (dx + priv->r_dx)/(allocation.width - priv->r_width - priv->l_rmargin - priv->r_rmargin);
if (priv->image_x_align < 0. || priv->image_x_align > 1.) {
priv->image_x_align = CLAMP (priv->image_x_align, 0., 1.);
priv->r_dx += dx;
}
else
priv->r_dx = 0;
priv->image_y_align += (dy + priv->r_dy)/(allocation.height - priv->r_height - priv->t_rmargin - priv->b_rmargin);
if (priv->image_y_align < 0. || priv->image_y_align > 1.) {
priv->image_y_align = CLAMP (priv->image_y_align, 0., 1.);
priv->r_dy += dy;
} else
priv->r_dy = 0;
/* we do this to correctly change the property values */
g_object_set (EOM_PRINT_PREVIEW (user_data),
"image-x-align", priv->image_x_align,
"image-y-align", priv->image_y_align,
NULL);
priv->cursorx = event->x;
priv->cursory = event->y;
g_signal_emit (G_OBJECT (user_data),
preview_signals
[SIGNAL_IMAGE_MOVED], 0);
} else {
if (press_inside_image_area (EOM_PRINT_PREVIEW (user_data), event->x, event->y)) {
GdkCursor *cursor;
cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget),
GDK_FLEUR);
gdk_window_set_cursor (gtk_widget_get_window (widget),
cursor);
gdk_cursor_unref (cursor);
} else {
gdk_window_set_cursor (gtk_widget_get_window (widget),
NULL);
}
}
return FALSE;
}
gboolean
eog_print_preview_point_in_image_area (EogPrintPreview *preview,
guint x,
guint y)
{
g_return_val_if_fail (EOG_IS_PRINT_PREVIEW (preview), FALSE);
return press_inside_image_area (preview, x, y);
}
