Added ProgressControl class.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@367 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/rfb_win32/ProgressControl.cxx b/rfb_win32/ProgressControl.cxx
new file mode 100644
index 0000000..c22c4f3
--- /dev/null
+++ b/rfb_win32/ProgressControl.cxx
@@ -0,0 +1,78 @@
+/* Copyright (C) 2005 TightVNC Team. All Rights Reserved.
+ *
+ * This 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 software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * USA.
+ *
+ * TightVNC distribution homepage on the Web: http://www.tightvnc.com/
+ *
+ */
+
+// -=- ProgressControl.h
+
+#include <rfb_win32/ProgressControl.h>
+
+using namespace rfb;
+using namespace rfb::win32;
+
+#define MAX_RANGE 0xFFFF
+
+ProgressControl::ProgressControl(HWND hwndProgress)
+{
+ m_hwndProgress = hwndProgress;
+}
+
+ProgressControl::~ProgressControl()
+{
+}
+
+bool
+ProgressControl::init(DWORD64 maxValue, DWORD64 position)
+{
+ if (m_dw64CurrentValue > m_dw64MaxValue) return false;
+
+ m_dw64CurrentValue = position;
+ m_dw64MaxValue = maxValue;
+
+ SendMessage(m_hwndProgress, PBM_SETRANGE, (WPARAM) 0, MAKELPARAM(0, MAX_RANGE));
+
+ return true;
+}
+
+bool
+ProgressControl::clear()
+{
+ m_dw64CurrentValue = 0;
+ return show();
+}
+
+bool
+ProgressControl::increase(DWORD64 value)
+{
+ if ((m_dw64MaxValue - m_dw64CurrentValue) > value) {
+ m_dw64CurrentValue += value;
+ } else {
+ m_dw64CurrentValue = m_dw64MaxValue;
+ }
+ return show();
+}
+
+bool
+ProgressControl::show()
+{
+ DWORD curPos = (DWORD) ((m_dw64CurrentValue * MAX_RANGE) / m_dw64MaxValue);
+ SendMessage(m_hwndProgress, PBM_SETPOS, (WPARAM) curPos, (LPARAM) 0);
+
+ return true;
+}