1 files changed, 64 insertions, 0 deletions
diff --git a/app/wlib/gtklib/png.c b/app/wlib/gtklib/png.c
new file mode 100644
index 0000000..e11869e
--- /dev/null
+++ b/app/wlib/gtklib/png.c
@@ -0,0 +1,64 @@
+/** \file png.c
+ * PNG creation 
+ */
+
+/*  XTrackCad - Model Railroad CAD
+ *  Copyright (C) 2015 Martin Fischer
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#define GTK_DISABLE_SINGLE_INCLUDES
+#define GDK_DISABLE_DEPRECATED
+#define GTK_DISABLE_DEPRECATED
+#define GSEAL_ENABLE
+
+#include <gtk/gtk.h>
+#include "gtkint.h"
+
+#define BITMAPFILEFORMAT "png"
+
+/**
+* Export as bitmap file.
+*
+* \param d IN the drawing area ?
+* \param fileName IN  fully qualified filename for the bitmap file.
+* \return    TRUE on success, FALSE on error
+*/
+
+wBool_t wBitMapWriteFile(wDraw_p d, const char * fileName)
+{
+    GdkPixbuf *pixbuf;
+    GError *error;
+    gboolean res;
+    pixbuf = gdk_pixbuf_get_from_drawable(NULL, (GdkWindow*)d->pixmap, NULL, 0, 0,
+                                          0, 0, d->w, d->h);
+
+    if (!pixbuf) {
+        wNoticeEx(NT_ERROR, "WriteBitMap: pixbuf_get failed", "Ok", NULL);
+        return FALSE;
+    }
+
+    error = NULL;
+    res = gdk_pixbuf_save(pixbuf, fileName, BITMAPFILEFORMAT, &error, NULL);
+
+    if (res == FALSE) {
+        wNoticeEx(NT_ERROR, "WriteBitMap: pixbuf_save failed", "Ok", NULL);
+        return FALSE;
+    }
+
+    g_object_unref(pixbuf);
+    return TRUE;
+}