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, 369 insertions, 0 deletions

diff --git a/kolourpaint/pixmapfx/kpeffectsdialog.cpp b/kolourpaint/pixmapfx/kpeffectsdialog.cpp
new file mode 100644
index 00000000..666f81cf
--- /dev/null
+++ b/kolourpaint/pixmapfx/kpeffectsdialog.cpp
@@ -0,0 +1,369 @@
+
+/*
+   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.
+*/
+
+#define DEBUG_KP_EFFECTS_DIALOG 0
+
+
+#include <kpeffectsdialog.h>
+
+#include <qgroupbox.h>
+#include <qhbox.h>
+#include <qlabel.h>
+#include <qlayout.h>
+#include <qtimer.h>
+
+#include <kapplication.h>
+#include <kcombobox.h>
+#include <kconfig.h>
+#include <kdebug.h>
+#include <klocale.h>
+
+#include <kpdefs.h>
+#include <kpdocument.h>
+#include <kpeffectbalance.h>
+#include <kpeffectblursharpen.h>
+#include <kpeffectemboss.h>
+#include <kpeffectflatten.h>
+#include <kpeffectinvert.h>
+#include <kpeffectreducecolors.h>
+#include <kppixmapfx.h>
+
+
+// protected static
+int kpEffectsDialog::s_lastWidth = 640;
+int kpEffectsDialog::s_lastHeight = 620;
+
+
+kpEffectsDialog::kpEffectsDialog (bool actOnSelection,
+                                  kpMainWindow *parent,
+                                  const char *name)
+    : kpToolPreviewDialog (kpToolPreviewDialog::Preview,
+                           true/*reserve top row*/,
+                           QString::null/*caption*/,
+                           QString::null/*afterActionText (no Dimensions Group Box)*/,
+                           actOnSelection,
+                           parent,
+                           name),
+      m_delayedUpdateTimer (new QTimer (this)),
+      m_effectsComboBox (0),
+      m_settingsGroupBox (0),
+      m_settingsLayout (0),
+      m_colorEffectWidget (0)
+{
+#if DEBUG_KP_EFFECTS_DIALOG
+    kdDebug () << "kpEffectsDialog::kpEffectsDialog()" << endl;
+#endif
+
+    if (actOnSelection)
+        setCaption (i18n ("More Image Effects (Selection)"));
+    else
+        setCaption (i18n ("More Image Effects"));
+
+
+    connect (m_delayedUpdateTimer, SIGNAL (timeout ()),
+             this, SLOT (slotUpdateWithWaitCursor ()));
+
+
+    QHBox *effectContainer = new QHBox (mainWidget ());
+    effectContainer->setSpacing (spacingHint () * 4
+                                 /*need more space for QGroupBox titles*/);
+    effectContainer->setMargin (0);
+
+    QLabel *label = new QLabel (i18n ("&Effect:"), effectContainer);
+
+    m_effectsComboBox = new KComboBox (effectContainer);
+    m_effectsComboBox->insertItem (i18n ("Balance"));
+    m_effectsComboBox->insertItem (i18n ("Emboss"));
+    m_effectsComboBox->insertItem (i18n ("Flatten"));
+    m_effectsComboBox->insertItem (i18n ("Invert"));
+    m_effectsComboBox->insertItem (i18n ("Reduce Colors"));
+    m_effectsComboBox->insertItem (i18n ("Soften & Sharpen"));
+
+    label->setBuddy (m_effectsComboBox);
+    effectContainer->setStretchFactor (m_effectsComboBox, 1);
+
+    addCustomWidgetToFront (effectContainer);
+
+
+    m_settingsGroupBox = new QGroupBox (mainWidget ());
+    m_settingsLayout = new QVBoxLayout (m_settingsGroupBox,
+                                        marginHint () * 2,
+                                        spacingHint ());
+    addCustomWidgetToBack (m_settingsGroupBox);
+
+
+    connect (m_effectsComboBox, SIGNAL (activated (int)),
+             this, SLOT (selectEffect (int)));
+    selectEffect (0);
+
+
+    resize (s_lastWidth, s_lastHeight);
+
+
+#if DEBUG_KP_EFFECTS_DIALOG
+    kdDebug () << "\tabout to slotUpdate()" << endl;
+#endif
+    slotUpdate ();
+}
+
+kpEffectsDialog::~kpEffectsDialog ()
+{
+    s_lastWidth = width ();
+    s_lastHeight = height ();
+}
+
+
+// public virtual [base kpToolPreviewDialog]
+bool kpEffectsDialog::isNoOp () const
+{
+    if (!m_colorEffectWidget)
+        return true;
+
+    return m_colorEffectWidget->isNoOp ();
+}
+
+// public
+kpColorEffectCommand *kpEffectsDialog::createCommand () const
+{
+    if (!m_colorEffectWidget)
+        return 0;
+
+    return m_colorEffectWidget->createCommand ();
+}
+
+
+// protected virtual [base kpToolPreviewDialog]
+QSize kpEffectsDialog::newDimensions () const
+{
+    kpDocument *doc = document ();
+    if (!doc)
+        return QSize ();
+
+    return QSize (doc->width (m_actOnSelection),
+                  doc->height (m_actOnSelection));
+}
+
+// protected virtual [base kpToolPreviewDialog]
+QPixmap kpEffectsDialog::transformPixmap (const QPixmap &pixmap,
+                                          int targetWidth, int targetHeight) const
+{
+    QPixmap pixmapWithEffect;
+
+    if (m_colorEffectWidget)
+        pixmapWithEffect = m_colorEffectWidget->applyColorEffect (pixmap);
+    else
+        pixmapWithEffect = pixmap;
+
+    return kpPixmapFX::scale (pixmapWithEffect, targetWidth, targetHeight);
+}
+
+
+// public
+int kpEffectsDialog::selectedEffect () const
+{
+    return m_effectsComboBox->currentItem ();
+}
+
+// public slot
+void kpEffectsDialog::selectEffect (int which)
+{
+#if DEBUG_KP_EFFECTS_DIALOG
+    kdDebug () << "kpEffectsDialog::selectEffect(" << which << ")" << endl;
+#endif
+
+    if (which < 0 ||
+        which >= m_effectsComboBox->count ())
+    {
+        return;
+    }
+
+    if (which != m_effectsComboBox->currentItem ())
+        m_effectsComboBox->setCurrentItem (which);
+
+
+    delete m_colorEffectWidget;
+    m_colorEffectWidget = 0;
+
+
+    m_settingsGroupBox->setCaption (QString::null);
+
+#define CREATE_EFFECT_WIDGET(name)                        \
+    m_colorEffectWidget = new name (m_actOnSelection,     \
+                                    m_mainWindow,         \
+                                    m_settingsGroupBox)
+    switch (which)
+    {
+    case 0:
+        CREATE_EFFECT_WIDGET (kpEffectBalanceWidget);
+        break;
+
+    case 1:
+        CREATE_EFFECT_WIDGET (kpEffectEmbossWidget);
+        break;
+
+    case 2:
+        CREATE_EFFECT_WIDGET (kpEffectFlattenWidget);
+        break;
+
+    case 3:
+        CREATE_EFFECT_WIDGET (kpEffectInvertWidget);
+        break;
+
+    case 4:
+        CREATE_EFFECT_WIDGET (kpEffectReduceColorsWidget);
+        break;
+
+    case 5:
+        CREATE_EFFECT_WIDGET (kpEffectBlurSharpenWidget);
+        break;
+    }
+#undef CREATE_EFFECT_WIDGET
+
+
+    if (m_colorEffectWidget)
+    {
+    #if DEBUG_KP_EFFECTS_DIALOG
+        kdDebug () << "\twidget exists for effect #" << endl;
+    #endif
+        m_settingsGroupBox->setTitle (m_colorEffectWidget->caption ());
+
+
+        // Don't resize the preview when showing the widget:
+        // TODO: actually work
+
+        QSize previewGroupBoxMinSize = m_previewGroupBox->minimumSize ();
+        QSize previewGroupBoxMaxSize = m_previewGroupBox->maximumSize ();
+        QLayout::ResizeMode previewGroupBoxResizeMode =
+            m_previewGroupBox->layout () ?
+                m_previewGroupBox->layout ()->resizeMode () :
+                QLayout::Auto;
+    #if DEBUG_KP_EFFECTS_DIALOG
+        kdDebug () << "\tpreviewGroupBox: minSize=" << previewGroupBoxMinSize
+                   << " maxSize=" << previewGroupBoxMaxSize
+                   << " size=" << m_previewGroupBox->size ()
+                   << " layout=" << m_previewGroupBox->layout ()
+                   << " resizeMode=" << previewGroupBoxResizeMode
+                   << endl;
+    #endif
+
+        if (m_previewGroupBox->layout ())
+            m_previewGroupBox->layout ()->setResizeMode (QLayout::FreeResize);
+    #if DEBUG_KP_EFFECTS_DIALOG
+        kdDebug () << "\tafter set resizeMode, previewGroupBox.size="
+                   << m_previewGroupBox->size () << endl;
+    #endif
+        m_previewGroupBox->setFixedSize (m_previewGroupBox->size ());
+    #if DEBUG_KP_EFFECTS_DIALOG
+        kdDebug () << "\tafter set fixedSize, previewGroupBox.size="
+                   << m_previewGroupBox->size () << endl;
+    #endif
+
+        // Show widget
+        m_settingsLayout->addWidget (m_colorEffectWidget);
+    #if DEBUG_KP_EFFECTS_DIALOG
+        kdDebug () << "\tafter addWidget, previewGroupBox.size="
+                   << m_previewGroupBox->size () << endl;
+    #endif
+        m_colorEffectWidget->show ();
+    #if DEBUG_KP_EFFECTS_DIALOG
+        kdDebug () << "\tafter addWidget show, previewGroupBox.size="
+                   << m_previewGroupBox->size () << endl;
+    #endif
+
+        m_previewGroupBox->setMinimumSize (previewGroupBoxMinSize);
+        m_previewGroupBox->setMaximumSize (previewGroupBoxMaxSize);
+    #if DEBUG_KP_EFFECTS_DIALOG
+        kdDebug () << "\tafter set fixedSize, previewGroupBox.size="
+                   << m_previewGroupBox->size () << endl;
+    #endif
+        if (m_previewGroupBox->layout ())
+            m_previewGroupBox->layout ()->setResizeMode (previewGroupBoxResizeMode);
+    #if DEBUG_KP_EFFECTS_DIALOG
+        kdDebug () << "\tafter restore resizeMode, previewGroupBox.size="
+                   << m_previewGroupBox->size () << endl;
+    #endif
+
+
+        connect (m_colorEffectWidget, SIGNAL (settingsChangedNoWaitCursor ()),
+                 this, SLOT (slotUpdate ()));
+        connect (m_colorEffectWidget, SIGNAL (settingsChanged ()),
+                 this, SLOT (slotUpdateWithWaitCursor ()));
+        connect (m_colorEffectWidget, SIGNAL (settingsChangedDelayed ()),
+                 this, SLOT (slotDelayedUpdate ()));
+        slotUpdateWithWaitCursor ();
+    #if DEBUG_KP_EFFECTS_DIALOG
+        kdDebug () << "\tafter slotUpdateWithWaitCursor, previewGroupBox.size="
+                   << m_previewGroupBox->size () << endl;
+    #endif
+    }
+}
+
+
+// protected slot virtual [base kpToolPreviewDialog]
+void kpEffectsDialog::slotUpdate ()
+{
+#if DEBUG_KP_EFFECTS_DIALOG
+    kdDebug () << "kpEffectsDialog::slotUpdate()"
+               << " timerActive=" << m_delayedUpdateTimer->isActive ()
+               << endl;
+#endif
+
+    m_delayedUpdateTimer->stop ();
+
+    kpToolPreviewDialog::slotUpdate ();
+}
+
+// protected slot virtual [base kpToolPreviewDialog]
+void kpEffectsDialog::slotUpdateWithWaitCursor ()
+{
+#if DEBUG_KP_EFFECTS_DIALOG
+    kdDebug () << "kpEffectsDialog::slotUpdateWithWaitCursor()"
+               << " timerActive=" << m_delayedUpdateTimer->isActive ()
+               << endl;
+#endif
+
+    m_delayedUpdateTimer->stop ();
+
+    kpToolPreviewDialog::slotUpdateWithWaitCursor ();
+}
+
+
+// protected slot
+void kpEffectsDialog::slotDelayedUpdate ()
+{
+#if DEBUG_KP_EFFECTS_DIALOG
+    kdDebug () << "kpEffectsDialog::slotDelayedUpdate()"
+               << " timerActive=" << m_delayedUpdateTimer->isActive ()
+               << endl;
+#endif
+    m_delayedUpdateTimer->stop ();
+
+    m_delayedUpdateTimer->start (400/*ms*/, true/*single shot*/);
+}
+
+
+#include <kpeffectsdialog.moc>