1 files changed, 106 insertions, 0 deletions
diff --git a/kolourpaint/tools/kptoolconverttograyscale.cpp b/kolourpaint/tools/kptoolconverttograyscale.cpp
new file mode 100644
index 00000000..a80ef8fa
--- /dev/null
+++ b/kolourpaint/tools/kptoolconverttograyscale.cpp
@@ -0,0 +1,106 @@
+
+/*
+   Copyright (c) 2003,2004,2005 Clarence Dang <[email protected]>
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   1. Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+   2. Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+   THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+   IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+   IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+   THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+#include <qapplication.h>
+#include <qpixmap.h>
+
+#include <klocale.h>
+
+#include <kpdefs.h>
+#include <kpdocument.h>
+#include <kpmainwindow.h>
+#include <kppixmapfx.h>
+#include <kpselection.h>
+#include <kptoolconverttograyscale.h>
+
+
+kpToolConvertToGrayscaleCommand::kpToolConvertToGrayscaleCommand (bool actOnSelection,
+                                                                  kpMainWindow *mainWindow)
+    : kpCommand (mainWindow),
+      m_actOnSelection (actOnSelection),
+      m_oldPixmapPtr (0)
+{
+}
+
+kpToolConvertToGrayscaleCommand::~kpToolConvertToGrayscaleCommand ()
+{
+    delete m_oldPixmapPtr;
+}
+
+
+// public virtual [base kpCommand]
+QString kpToolConvertToGrayscaleCommand::name () const
+{
+    QString opName = i18n ("Reduce to Grayscale");
+
+    if (m_actOnSelection)
+        return i18n ("Selection: %1").arg (opName);
+    else
+        return opName;
+}
+
+
+// public virtual [base kpCommand]
+int kpToolConvertToGrayscaleCommand::size () const
+{
+    return kpPixmapFX::pixmapSize (m_oldPixmapPtr);
+}
+
+
+// public virtual [base kpCommand]
+void kpToolConvertToGrayscaleCommand::execute ()
+{
+    kpDocument *doc = document ();
+    if (!doc)
+        return;
+
+    QApplication::setOverrideCursor (Qt::waitCursor);
+
+    m_oldPixmapPtr = new QPixmap ();
+    *m_oldPixmapPtr = *doc->pixmap (m_actOnSelection);
+
+    QPixmap newPixmap = kpPixmapFX::convertToGrayscale (*doc->pixmap (m_actOnSelection));
+
+    doc->setPixmap (m_actOnSelection, newPixmap);
+
+    QApplication::restoreOverrideCursor ();
+}
+
+// public virtual [base kpCommand]
+void kpToolConvertToGrayscaleCommand::unexecute ()
+{
+    kpDocument *doc = document ();
+    if (!doc)
+        return;
+
+    doc->setPixmap (m_actOnSelection, *m_oldPixmapPtr);
+
+    delete m_oldPixmapPtr;
+    m_oldPixmapPtr = 0;
+}
+