Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 228 insertions, 0 deletions

diff --git a/kolourpaint/pixmapfx/kpeffectemboss.cpp b/kolourpaint/pixmapfx/kpeffectemboss.cpp
new file mode 100644
index 00000000..e33f3a42
--- /dev/null
+++ b/kolourpaint/pixmapfx/kpeffectemboss.cpp
@@ -0,0 +1,228 @@
+
+/*
+   Copyright (c) 2003,2004,2005 Clarence Dang <dang@kde.org>
+   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.
+*/
+
+#define DEBUG_KP_EFFECT_EMBOSS 0
+
+
+#include <kpeffectemboss.h>
+
+#include <qcheckbox.h>
+#include <qimage.h>
+#include <qlabel.h>
+#include <qlayout.h>
+#include <qpixmap.h>
+#include <qpushbutton.h>
+
+#include <kdebug.h>
+#include <kimageeffect.h>
+#include <klocale.h>
+#include <knuminput.h>
+
+#include <kpmainwindow.h>
+#include <kppixmapfx.h>
+
+
+kpEffectEmbossCommand::kpEffectEmbossCommand (double radius, double sigma,
+                                              int repeat,
+                                              bool actOnSelection,
+                                              kpMainWindow *mainWindow)
+    : kpColorEffectCommand (i18n ("Emboss"), actOnSelection, mainWindow),
+      m_radius (radius), m_sigma (sigma),
+      m_repeat (repeat)
+{
+}
+
+kpEffectEmbossCommand::~kpEffectEmbossCommand ()
+{
+}
+
+
+// public static
+QPixmap kpEffectEmbossCommand::apply (const QPixmap &pixmap,
+                                      double radius, double sigma,
+                                      int repeat)
+{
+#if DEBUG_KP_EFFECT_EMBOSS
+    kdDebug () << "kpEffectEmbossCommand::apply()"
+               << " radius=" << radius
+               << " sigma=" << sigma
+               << " repeat=" << repeat
+               << ")"
+               << endl;
+#endif
+
+    // (KImageEffect::emboss() ignores mask)
+    QPixmap usePixmap = kpPixmapFX::pixmapWithDefinedTransparentPixels (
+        pixmap,
+        Qt::white/*arbitrarily chosen*/);
+
+
+    QImage image = kpPixmapFX::convertToImage (usePixmap);
+
+    for (int i = 0; i < repeat; i++)
+    {
+        image = KImageEffect::emboss (image, radius, sigma);
+    }
+
+    QPixmap retPixmap = kpPixmapFX::convertToPixmap (image);
+
+
+    // KImageEffect::emboss() nukes mask - restore it
+    if (usePixmap.mask ())
+        retPixmap.setMask (*usePixmap.mask ());
+
+
+    return retPixmap;
+}
+
+// protected virtual [base kpColorEffectCommand]
+QPixmap kpEffectEmbossCommand::applyColorEffect (const QPixmap &pixmap)
+{
+    return apply (pixmap, m_radius, m_sigma, m_repeat);
+}
+
+
+
+kpEffectEmbossWidget::kpEffectEmbossWidget (bool actOnSelection,
+                                            kpMainWindow *mainWindow,
+                                            QWidget *parent, const char *name)
+    : kpColorEffectWidget (actOnSelection, mainWindow, parent, name)
+{
+    QGridLayout *lay = new QGridLayout (this, 4, 2, marginHint (), spacingHint ());
+
+
+#if 0
+    QLabel *amountLabel = new QLabel (i18n ("&Amount:"), this);
+    m_amountInput = new KIntNumInput (this);
+    m_amountInput->setRange (0, 10, 1/*step*/, true/*slider*/);
+    m_amountInput->setSpecialValueText (i18n ("None"));
+
+
+    amountLabel->setBuddy (m_amountInput);
+
+
+    lay->addWidget (amountLabel, 0, 0);
+    lay->addWidget (m_amountInput, 0, 1);
+
+    lay->setColStretch (1, 1);
+
+
+    connect (m_amountInput, SIGNAL (valueChanged (int)),
+             this, SIGNAL (settingsChanged ()));
+#endif
+
+    m_enableCheckBox = new QCheckBox (i18n ("E&nable"), this);
+
+
+    lay->addMultiCellWidget (m_enableCheckBox, 0, 0, 0, 1, Qt::AlignCenter);
+
+
+    // (settingsChangedDelayed() instead of settingsChanged() so that the
+    //  user can quickly press OK to apply effect to document directly and
+    //  not have to wait for the also slow preview)
+    connect (m_enableCheckBox, SIGNAL (toggled (bool)),
+             this, SIGNAL (settingsChangedDelayed ()));
+}
+
+kpEffectEmbossWidget::~kpEffectEmbossWidget ()
+{
+}
+
+
+// public virtual [base kpColorEffectWidget]
+QString kpEffectEmbossWidget::caption () const
+{
+    return QString::null;
+}
+
+
+// public virtual [base kpColorEffectWidget]
+bool kpEffectEmbossWidget::isNoOp () const
+{
+    //return (m_amountInput->value () == 0);
+    return !m_enableCheckBox->isChecked ();
+}
+
+// public virtual [base kpColorEffectWidget]
+QPixmap kpEffectEmbossWidget::applyColorEffect (const QPixmap &pixmap)
+{
+    if (isNoOp ())
+        return pixmap;
+
+    return kpEffectEmbossCommand::apply (pixmap, radius (), sigma (), repeat ());
+}
+
+// public virtual [base kpColorEffectWidget]
+kpColorEffectCommand *kpEffectEmbossWidget::createCommand () const
+{
+    return new kpEffectEmbossCommand (radius (), sigma (), repeat (),
+                                      m_actOnSelection,
+                                      m_mainWindow);
+}
+
+
+// The numbers that follow were picked by experimentation.
+// I still have no idea what "radius" and "sigma" mean
+// (even after reading the API).
+
+// protected
+double kpEffectEmbossWidget::radius () const
+{
+    //if (m_amountInput->value () == 0)
+    //    return 0;
+
+    return 0;
+}
+
+
+// protected
+double kpEffectEmbossWidget::sigma () const
+{
+#if 0
+    if (m_amountInput->value () == 0)
+        return 0;
+
+    const double Min = 1;
+    const double Max = 1.2;
+
+    return Min +
+               (m_amountInput->maxValue () - m_amountInput->value ()) *
+                    (Max - Min) /
+                        (m_amountInput->maxValue () - 1);
+#endif
+
+    return 1;
+}
+
+// protected
+int kpEffectEmbossWidget::repeat () const
+{
+    return 1;
+}
+
+
+#include <kpeffectemboss.moc>