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316 lines
8.9 KiB
316 lines
8.9 KiB
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/*
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Copyright (c) 2003,2004,2005 Clarence Dang <dang@kde.org>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define DEBUG_KP_EFFECT_INVERT 0
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#include <kpeffectinvert.h>
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#include <qcheckbox.h>
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#include <qimage.h>
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#include <qlayout.h>
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#include <qpixmap.h>
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#include <kdebug.h>
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#include <klocale.h>
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#include <kppixmapfx.h>
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//
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// kpEffectInvertCommand
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//
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kpEffectInvertCommand::kpEffectInvertCommand (int channels,
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bool actOnSelection,
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kpMainWindow *mainWindow)
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: kpColorEffectCommand (channels == RGB ?
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i18n ("Invert Colors") : i18n ("Invert"),
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actOnSelection, mainWindow),
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m_channels (channels)
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{
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}
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kpEffectInvertCommand::kpEffectInvertCommand (bool actOnSelection,
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kpMainWindow *mainWindow)
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: kpColorEffectCommand (i18n ("Invert Colors"), actOnSelection, mainWindow),
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m_channels (RGB)
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{
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}
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kpEffectInvertCommand::~kpEffectInvertCommand ()
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{
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}
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// public static
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void kpEffectInvertCommand::apply (QPixmap *destPixmapPtr, int channels)
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{
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QImage image = kpPixmapFX::convertToImage (*destPixmapPtr);
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apply (&image, channels);
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*destPixmapPtr = kpPixmapFX::convertToPixmap (image);
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}
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// public static
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QPixmap kpEffectInvertCommand::apply (const QPixmap &pm, int channels)
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{
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QImage image = kpPixmapFX::convertToImage (pm);
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apply (&image, channels);
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return kpPixmapFX::convertToPixmap (image);
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}
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// public static
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void kpEffectInvertCommand::apply (QImage *destImagePtr, int channels)
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{
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QRgb mask = qRgba ((channels & Red) ? 0xFF : 0,
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(channels & Green) ? 0xFF : 0,
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(channels & Blue) ? 0xFF : 0,
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0/*don't invert alpha*/);
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#if DEBUG_KP_EFFECT_INVERT
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kdDebug () << "kpEffectInvertCommand::apply(channels=" << channels
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<< ") mask=" << (int *) mask
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<< endl;
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#endif
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if (destImagePtr->depth () > 8)
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{
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#if 0
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// SYNC: TODO: Qt BUG - invertAlpha argument is inverted!!!
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destImagePtr->invertPixels (true/*no invert alpha (Qt 3.2)*/);
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#else
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// Above version works for Qt 3.2 at least.
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// But this version will always work (slower, though) and supports
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// inverting particular channels.
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for (int y = 0; y < destImagePtr->height (); y++)
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{
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for (int x = 0; x < destImagePtr->width (); x++)
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{
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destImagePtr->setPixel (x, y, destImagePtr->pixel (x, y) ^ mask);
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}
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}
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#endif
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}
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else
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{
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for (int i = 0; i < destImagePtr->numColors (); i++)
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{
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destImagePtr->setColor (i, destImagePtr->color (i) ^ mask);
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}
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}
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}
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// public static
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QImage kpEffectInvertCommand::apply (const QImage &img, int channels)
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{
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QImage retImage = img;
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apply (&retImage, channels);
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return retImage;
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}
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//
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// kpEffectInvertCommand implements kpColorEffectCommand interface
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//
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// protected virtual [base kpColorEffectCommand]
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QPixmap kpEffectInvertCommand::applyColorEffect (const QPixmap &pixmap)
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{
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return apply (pixmap, m_channels);
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}
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//
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// kpEffectInvertWidget
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//
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kpEffectInvertWidget::kpEffectInvertWidget (bool actOnSelection,
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kpMainWindow *mainWindow,
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QWidget *parent,
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const char *name)
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: kpColorEffectWidget (actOnSelection, mainWindow, parent, name)
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{
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QVBoxLayout *topLevelLay = new QVBoxLayout (this, marginHint (), spacingHint ());
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QWidget *centerWidget = new QWidget (this);
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topLevelLay->addWidget (centerWidget, 0/*stretch*/, Qt::AlignCenter);
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QVBoxLayout *centerWidgetLay = new QVBoxLayout (centerWidget,
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0/*margin*/,
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spacingHint ());
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m_redCheckBox = new QCheckBox (i18n ("&Red"), centerWidget);
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m_greenCheckBox = new QCheckBox (i18n ("&Green"), centerWidget);
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m_blueCheckBox = new QCheckBox (i18n ("&Blue"), centerWidget);
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QWidget *spaceWidget = new QWidget (centerWidget);
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spaceWidget->setFixedSize (1, spacingHint ());
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m_allCheckBox = new QCheckBox (i18n ("&All"), centerWidget);
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m_redCheckBox->setChecked (false);
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m_greenCheckBox->setChecked (false);
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m_blueCheckBox->setChecked (false);
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m_allCheckBox->setChecked (false);
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centerWidgetLay->addWidget (m_redCheckBox);
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centerWidgetLay->addWidget (m_greenCheckBox);
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centerWidgetLay->addWidget (m_blueCheckBox);
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centerWidgetLay->addWidget (spaceWidget);
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centerWidgetLay->addWidget (m_allCheckBox);
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m_inSignalHandler = false;
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connect (m_redCheckBox, SIGNAL (toggled (bool)),
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this, SLOT (slotRGBCheckBoxToggled ()));
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connect (m_greenCheckBox, SIGNAL (toggled (bool)),
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this, SLOT (slotRGBCheckBoxToggled ()));
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connect (m_blueCheckBox, SIGNAL (toggled (bool)),
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this, SLOT (slotRGBCheckBoxToggled ()));
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connect (m_allCheckBox, SIGNAL (toggled (bool)),
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this, SLOT (slotAllCheckBoxToggled ()));
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}
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kpEffectInvertWidget::~kpEffectInvertWidget ()
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{
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}
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// public
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int kpEffectInvertWidget::channels () const
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{
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#if DEBUG_KP_EFFECT_INVERT
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kdDebug () << "kpEffectInvertWidget::channels()"
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<< " isChecked: r=" << m_redCheckBox->isChecked ()
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<< " g=" << m_greenCheckBox->isChecked ()
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<< " b=" << m_blueCheckBox->isChecked ()
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<< endl;
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#endif
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int channels = 0;
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if (m_redCheckBox->isChecked ())
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channels |= kpEffectInvertCommand::Red;
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if (m_greenCheckBox->isChecked ())
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channels |= kpEffectInvertCommand::Green;
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if (m_blueCheckBox->isChecked ())
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channels |= kpEffectInvertCommand::Blue;
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#if DEBUG_KP_EFFECT_INVERT
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kdDebug () << "\treturning channels=" << (int *) channels << endl;
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#endif
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return channels;
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}
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//
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// kpEffectInvertWidget implements kpColorEffectWidget interface
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//
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// public virtual [base kpColorEffectWidget]
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QString kpEffectInvertWidget::caption () const
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{
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return i18n ("Channels");
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}
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// public virtual [base kpColorEffectWidget]
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bool kpEffectInvertWidget::isNoOp () const
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{
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return (channels () == kpEffectInvertCommand::None);
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}
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// public virtual [base kpColorEffectWidget]
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QPixmap kpEffectInvertWidget::applyColorEffect (const QPixmap &pixmap)
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{
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return kpEffectInvertCommand::apply (pixmap, channels ());
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}
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// public virtual [base kpColorEffectWidget]
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kpColorEffectCommand *kpEffectInvertWidget::createCommand () const
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{
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return new kpEffectInvertCommand (channels (),
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m_actOnSelection,
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m_mainWindow);
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}
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// protected slots
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void kpEffectInvertWidget::slotRGBCheckBoxToggled ()
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{
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if (m_inSignalHandler)
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return;
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m_inSignalHandler = true;
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//blockSignals (true);
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m_allCheckBox->setChecked (m_redCheckBox->isChecked () &&
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m_blueCheckBox->isChecked () &&
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m_greenCheckBox->isChecked ());
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//blockSignals (false);
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emit settingsChanged ();
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m_inSignalHandler = false;
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}
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// protected slot
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void kpEffectInvertWidget::slotAllCheckBoxToggled ()
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{
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if (m_inSignalHandler)
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return;
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m_inSignalHandler = true;
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//blockSignals (true);
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m_redCheckBox->setChecked (m_allCheckBox->isChecked ());
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m_greenCheckBox->setChecked (m_allCheckBox->isChecked ());
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m_blueCheckBox->setChecked (m_allCheckBox->isChecked ());
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//blockSignals (false);
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emit settingsChanged ();
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m_inSignalHandler = false;
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}
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#include <kpeffectinvert.moc>
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