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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit47d455dd55be855e4cc691c32f687f723d9247ee (patch)
tree52e236aaa2576bdb3840ebede26619692fed6d7d /kolourpaint/tools/kptoolrotate.cpp
downloadtdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.tar.gz
tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.zip
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
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diff --git a/kolourpaint/tools/kptoolrotate.cpp b/kolourpaint/tools/kptoolrotate.cpp
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+
+/*
+ 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_TOOL_ROTATE 0
+
+
+#include <kptoolrotate.h>
+
+#include <qapplication.h>
+#include <qbuttongroup.h>
+#include <qgroupbox.h>
+#include <qlabel.h>
+#include <qlayout.h>
+#include <qpushbutton.h>
+#include <qradiobutton.h>
+#include <qwmatrix.h>
+
+#include <kdebug.h>
+#include <kiconloader.h>
+#include <knuminput.h>
+#include <klocale.h>
+
+#include <kpdefs.h>
+#include <kpdocument.h>
+#include <kpmainwindow.h>
+#include <kppixmapfx.h>
+#include <kpselection.h>
+#include <kptool.h>
+#include <kpviewmanager.h>
+
+
+kpToolRotateCommand::kpToolRotateCommand (bool actOnSelection,
+ double angle,
+ kpMainWindow *mainWindow)
+ : kpCommand (mainWindow),
+ m_actOnSelection (actOnSelection),
+ m_angle (angle),
+ m_backgroundColor (mainWindow ? mainWindow->backgroundColor (actOnSelection) : kpColor::invalid),
+ m_losslessRotation (kpPixmapFX::isLosslessRotation (angle))
+{
+}
+
+kpToolRotateCommand::~kpToolRotateCommand ()
+{
+}
+
+
+// public virtual [base kpCommand]
+QString kpToolRotateCommand::name () const
+{
+ QString opName = i18n ("Rotate");
+
+ if (m_actOnSelection)
+ return i18n ("Selection: %1").arg (opName);
+ else
+ return opName;
+}
+
+
+// public virtual [base kpCommand]
+int kpToolRotateCommand::size () const
+{
+ return kpPixmapFX::pixmapSize (m_oldPixmap) +
+ m_oldSelection.size ();
+}
+
+
+// public virtual [base kpCommand]
+void kpToolRotateCommand::execute ()
+{
+ kpDocument *doc = document ();
+ if (!doc)
+ return;
+
+
+ QApplication::setOverrideCursor (Qt::waitCursor);
+
+
+ if (!m_losslessRotation)
+ m_oldPixmap = *doc->pixmap (m_actOnSelection);
+
+
+ QPixmap newPixmap = kpPixmapFX::rotate (*doc->pixmap (m_actOnSelection),
+ m_angle,
+ m_backgroundColor);
+
+
+ if (m_actOnSelection)
+ {
+ kpSelection *sel = doc->selection ();
+
+ // Save old selection
+ m_oldSelection = *sel;
+ m_oldSelection.setPixmap (QPixmap ());
+
+
+ // Calculate new top left (so selection rotates about centre)
+ // (the Times2 trickery is used to reduce integer division error without
+ // resorting to the troublesome world of floating point)
+ QPoint oldCenterTimes2 (sel->x () * 2 + sel->width (),
+ sel->y () * 2 + sel->height ());
+ QPoint newTopLeftTimes2 (oldCenterTimes2 - QPoint (newPixmap.width (), newPixmap.height ()));
+ QPoint newTopLeft (newTopLeftTimes2.x () / 2, newTopLeftTimes2.y () / 2);
+
+
+ // Calculate rotated points
+ QPointArray currentPoints = sel->points ();
+ currentPoints.translate (-currentPoints.boundingRect ().x (),
+ -currentPoints.boundingRect ().y ());
+ QWMatrix rotateMatrix = kpPixmapFX::rotateMatrix (*doc->pixmap (m_actOnSelection), m_angle);
+ currentPoints = rotateMatrix.map (currentPoints);
+ currentPoints.translate (-currentPoints.boundingRect ().x () + newTopLeft.x (),
+ -currentPoints.boundingRect ().y () + newTopLeft.y ());
+
+
+ if (currentPoints.boundingRect ().width () == newPixmap.width () &&
+ currentPoints.boundingRect ().height () == newPixmap.height ())
+ {
+ doc->setSelection (kpSelection (currentPoints, newPixmap,
+ m_oldSelection.transparency ()));
+ }
+ else
+ {
+ // TODO: fix the latter "victim of" problem in kpSelection by
+ // allowing the border width & height != pixmap width & height
+ // Or maybe autocrop?
+ #if DEBUG_KP_TOOL_ROTATE
+ kdDebug () << "kpToolRotateCommand::execute() currentPoints.boundingRect="
+ << currentPoints.boundingRect ()
+ << " newPixmap: w=" << newPixmap.width ()
+ << " h=" << newPixmap.height ()
+ << " (victim of rounding error and/or rotated-a-(rectangular)-pixmap-that-was-transparent-in-the-corners-making-sel-uselessly-bigger-than-needs-be)"
+ << endl;
+ #endif
+ doc->setSelection (kpSelection (kpSelection::Rectangle,
+ QRect (newTopLeft.x (), newTopLeft.y (),
+ newPixmap.width (), newPixmap.height ()),
+ newPixmap,
+ m_oldSelection.transparency ()));
+ }
+
+ if (m_mainWindow->tool ())
+ m_mainWindow->tool ()->somethingBelowTheCursorChanged ();
+ }
+ else
+ doc->setPixmap (newPixmap);
+
+
+ QApplication::restoreOverrideCursor ();
+}
+
+// public virtual [base kpCommand]
+void kpToolRotateCommand::unexecute ()
+{
+ kpDocument *doc = document ();
+ if (!doc)
+ return;
+
+
+ QApplication::setOverrideCursor (Qt::waitCursor);
+
+
+ QPixmap oldPixmap;
+
+ if (!m_losslessRotation)
+ {
+ oldPixmap = m_oldPixmap;
+ m_oldPixmap.resize (0, 0);
+ }
+ else
+ {
+ oldPixmap = kpPixmapFX::rotate (*doc->pixmap (m_actOnSelection),
+ 360 - m_angle,
+ m_backgroundColor);
+ }
+
+
+ if (!m_actOnSelection)
+ doc->setPixmap (oldPixmap);
+ else
+ {
+ kpSelection oldSelection = m_oldSelection;
+ oldSelection.setPixmap (oldPixmap);
+ doc->setSelection (oldSelection);
+
+ if (m_mainWindow->tool ())
+ m_mainWindow->tool ()->somethingBelowTheCursorChanged ();
+ }
+
+
+ QApplication::restoreOverrideCursor ();
+}
+
+
+/*
+ * kpToolRotateDialog
+ */
+
+
+// private static
+int kpToolRotateDialog::s_lastWidth = -1,
+ kpToolRotateDialog::s_lastHeight = -1;
+
+// private static
+bool kpToolRotateDialog::s_lastIsClockwise = true;
+int kpToolRotateDialog::s_lastAngleRadioButtonID = 3;
+int kpToolRotateDialog::s_lastAngleCustom = 0;
+
+
+kpToolRotateDialog::kpToolRotateDialog (bool actOnSelection,
+ kpMainWindow *mainWindow,
+ const char *name)
+ : kpToolPreviewDialog (kpToolPreviewDialog::AllFeatures,
+ false/*don't reserve top row*/,
+ actOnSelection ? i18n ("Rotate Selection") : i18n ("Rotate Image"),
+ i18n ("After Rotate:"),
+ actOnSelection, mainWindow, name)
+{
+ // Too confusing - disable for now
+ s_lastAngleRadioButtonID = 3;
+ s_lastAngleCustom = 0;
+
+
+ createDirectionGroupBox ();
+ createAngleGroupBox ();
+
+
+ if (s_lastWidth > 0 && s_lastHeight > 0)
+ resize (s_lastWidth, s_lastHeight);
+
+
+ slotAngleCustomRadioButtonToggled (m_angleCustomRadioButton->isChecked ());
+ slotUpdate ();
+}
+
+kpToolRotateDialog::~kpToolRotateDialog ()
+{
+ s_lastWidth = width (), s_lastHeight = height ();
+}
+
+
+// private
+void kpToolRotateDialog::createDirectionGroupBox ()
+{
+ QGroupBox *directionGroupBox = new QGroupBox (i18n ("Direction"), mainWidget ());
+ addCustomWidget (directionGroupBox);
+
+
+ QLabel *antiClockwisePixmapLabel = new QLabel (directionGroupBox);
+ antiClockwisePixmapLabel->setPixmap (UserIcon ("image_rotate_anticlockwise"));
+
+ QLabel *clockwisePixmapLabel = new QLabel (directionGroupBox);
+ clockwisePixmapLabel->setPixmap (UserIcon ("image_rotate_clockwise"));
+
+
+ m_antiClockwiseRadioButton = new QRadioButton (i18n ("Cou&nterclockwise"), directionGroupBox);
+ m_clockwiseRadioButton = new QRadioButton (i18n ("C&lockwise"), directionGroupBox);
+
+
+ m_antiClockwiseRadioButton->setChecked (!s_lastIsClockwise);
+ m_clockwiseRadioButton->setChecked (s_lastIsClockwise);
+
+
+ QButtonGroup *buttonGroup = new QButtonGroup (directionGroupBox);
+ buttonGroup->hide ();
+
+ buttonGroup->insert (m_antiClockwiseRadioButton);
+ buttonGroup->insert (m_clockwiseRadioButton);
+
+
+ QGridLayout *directionLayout = new QGridLayout (directionGroupBox,
+ 2, 2, marginHint () * 2, spacingHint ());
+ directionLayout->addWidget (antiClockwisePixmapLabel, 0, 0, Qt::AlignCenter);
+ directionLayout->addWidget (clockwisePixmapLabel, 0, 1, Qt::AlignCenter);
+ directionLayout->addWidget (m_antiClockwiseRadioButton, 1, 0, Qt::AlignCenter);
+ directionLayout->addWidget (m_clockwiseRadioButton, 1, 1, Qt::AlignCenter);
+
+
+ connect (m_antiClockwiseRadioButton, SIGNAL (toggled (bool)),
+ this, SLOT (slotUpdate ()));
+ connect (m_clockwiseRadioButton, SIGNAL (toggled (bool)),
+ this, SLOT (slotUpdate ()));
+}
+
+// private
+void kpToolRotateDialog::createAngleGroupBox ()
+{
+ QGroupBox *angleGroupBox = new QGroupBox (i18n ("Angle"), mainWidget ());
+ addCustomWidget (angleGroupBox);
+
+
+ m_angle90RadioButton = new QRadioButton (i18n ("90 &degrees"), angleGroupBox);
+ m_angle180RadioButton = new QRadioButton (i18n ("180 d&egrees"), angleGroupBox);
+ m_angle270RadioButton = new QRadioButton (i18n ("270 de&grees"), angleGroupBox);
+
+ m_angleCustomRadioButton = new QRadioButton (i18n ("C&ustom:"), angleGroupBox);
+ m_angleCustomInput = new KIntNumInput (s_lastAngleCustom, angleGroupBox);
+ m_angleCustomInput->setMinValue (-359);
+ m_angleCustomInput->setMaxValue (+359);
+ QLabel *degreesLabel = new QLabel (i18n ("degrees"), angleGroupBox);
+
+
+ m_angleButtonGroup = new QButtonGroup (angleGroupBox);
+ m_angleButtonGroup->hide ();
+
+ m_angleButtonGroup->insert (m_angle90RadioButton);
+ m_angleButtonGroup->insert (m_angle180RadioButton);
+ m_angleButtonGroup->insert (m_angle270RadioButton);
+
+ m_angleButtonGroup->insert (m_angleCustomRadioButton);
+
+ m_angleButtonGroup->setButton (s_lastAngleRadioButtonID);
+
+
+ QGridLayout *angleLayout = new QGridLayout (angleGroupBox,
+ 6, 3,
+ marginHint () * 2, spacingHint ());
+
+ angleLayout->addMultiCellWidget (m_angle90RadioButton, 0, 0, 0, 2);
+ angleLayout->addMultiCellWidget (m_angle180RadioButton, 1, 1, 0, 2);
+ angleLayout->addMultiCellWidget (m_angle270RadioButton, 2, 2, 0, 2);
+
+ angleLayout->addWidget (m_angleCustomRadioButton, 3, 0);
+ angleLayout->addWidget (m_angleCustomInput, 3, 1);
+ angleLayout->addWidget (degreesLabel, 3, 2);
+
+ angleLayout->setColStretch (1, 2); // Stretch Custom Angle Input
+
+
+ connect (m_angle90RadioButton, SIGNAL (toggled (bool)),
+ this, SLOT (slotUpdate ()));
+ connect (m_angle180RadioButton, SIGNAL (toggled (bool)),
+ this, SLOT (slotUpdate ()));
+ connect (m_angle270RadioButton, SIGNAL (toggled (bool)),
+ this, SLOT (slotUpdate ()));
+
+ connect (m_angleCustomRadioButton, SIGNAL (toggled (bool)),
+ this, SLOT (slotAngleCustomRadioButtonToggled (bool)));
+ connect (m_angleCustomRadioButton, SIGNAL (toggled (bool)),
+ this, SLOT (slotUpdate ()));
+
+ connect (m_angleCustomInput, SIGNAL (valueChanged (int)),
+ this, SLOT (slotUpdate ()));
+}
+
+
+// public virtual [base kpToolPreviewDialog]
+bool kpToolRotateDialog::isNoOp () const
+{
+ return (angle () == 0);
+}
+
+// public
+int kpToolRotateDialog::angle () const
+{
+ int retAngle;
+
+
+ if (m_angle90RadioButton->isChecked ())
+ retAngle = 90;
+ else if (m_angle180RadioButton->isChecked ())
+ retAngle = 180;
+ else if (m_angle270RadioButton->isChecked ())
+ retAngle = 270;
+ else // if (m_angleCustomRadioButton->isChecked ())
+ retAngle = m_angleCustomInput->value ();
+
+
+ if (m_antiClockwiseRadioButton->isChecked ())
+ retAngle *= -1;
+
+
+ if (retAngle < 0)
+ retAngle += ((0 - retAngle) / 360 + 1) * 360;
+
+ if (retAngle >= 360)
+ retAngle -= ((retAngle - 360) / 360 + 1) * 360;
+
+
+ return retAngle;
+}
+
+
+// private virtual [base kpToolPreviewDialog]
+QSize kpToolRotateDialog::newDimensions () const
+{
+ QWMatrix matrix = kpPixmapFX::rotateMatrix (m_oldWidth, m_oldHeight, angle ());
+ // TODO: Should we be using QWMatrix::Areas?
+ QRect rect = matrix.map (QRect (0, 0, m_oldWidth, m_oldHeight));
+ return rect.size ();
+}
+
+// private virtual [base kpToolPreviewDialog]
+QPixmap kpToolRotateDialog::transformPixmap (const QPixmap &pixmap,
+ int targetWidth, int targetHeight) const
+{
+ return kpPixmapFX::rotate (pixmap, angle (),
+ m_mainWindow ? m_mainWindow->backgroundColor (m_actOnSelection) : kpColor::invalid,
+ targetWidth, targetHeight);
+}
+
+
+// private slot
+void kpToolRotateDialog::slotAngleCustomRadioButtonToggled (bool isChecked)
+{
+ m_angleCustomInput->setEnabled (isChecked);
+
+ if (isChecked)
+ m_angleCustomInput->setEditFocus ();
+}
+
+// private slot virtual [base kpToolPreviewDialog]
+void kpToolRotateDialog::slotUpdate ()
+{
+ s_lastIsClockwise = m_clockwiseRadioButton->isChecked ();
+ s_lastAngleRadioButtonID = m_angleButtonGroup->selectedId ();
+ s_lastAngleCustom = m_angleCustomInput->value ();
+
+ kpToolPreviewDialog::slotUpdate ();
+}
+
+
+// private slot virtual [base KDialogBase]
+void kpToolRotateDialog::slotOk ()
+{
+ QString message, caption, continueButtonText;
+
+ if (document ()->selection ())
+ {
+ if (!document ()->selection ()->isText ())
+ {
+ message =
+ i18n ("<qt><p>Rotating the selection to %1x%2"
+ " may take a substantial amount of memory."
+ " This can reduce system"
+ " responsiveness and cause other application resource"
+ " problems.</p>"
+
+ "<p>Are you sure want to rotate the selection?</p></qt>");
+
+ caption = i18n ("Rotate Selection?");
+ continueButtonText = i18n ("Rotat&e Selection");
+ }
+ }
+ else
+ {
+ message =
+ i18n ("<qt><p>Rotating the image to %1x%2"
+ " may take a substantial amount of memory."
+ " This can reduce system"
+ " responsiveness and cause other application resource"
+ " problems.</p>"
+
+ "<p>Are you sure want to rotate the image?</p></qt>");
+
+ caption = i18n ("Rotate Image?");
+ continueButtonText = i18n ("Rotat&e Image");
+ }
+
+
+ const int newWidth = newDimensions ().width ();
+ const int newHeight = newDimensions ().height ();
+
+ if (kpTool::warnIfBigImageSize (m_oldWidth,
+ m_oldHeight,
+ newWidth, newHeight,
+ message.arg (newWidth).arg (newHeight),
+ caption,
+ continueButtonText,
+ this))
+ {
+ KDialogBase::slotOk ();
+ }
+}
+
+#include <kptoolrotate.moc>