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450 lines
14 KiB
450 lines
14 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_TOOL_SKEW 0
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#define DEBUG_KP_TOOL_SKEW_DIALOG 0
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#include <kptoolskew.h>
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#include <tqapplication.h>
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#include <tqgroupbox.h>
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#include <tqlabel.h>
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#include <tqlayout.h>
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#include <tqpushbutton.h>
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#include <tqwmatrix.h>
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#include <kdebug.h>
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#include <kiconloader.h>
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#include <klocale.h>
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#include <knuminput.h>
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#include <kpdefs.h>
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#include <kpdocument.h>
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#include <kpmainwindow.h>
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#include <kppixmapfx.h>
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#include <kpselection.h>
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#include <kptool.h>
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/*
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* kpToolSkewCommand
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*/
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kpToolSkewCommand::kpToolSkewCommand (bool actOnSelection,
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int hangle, int vangle,
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kpMainWindow *mainWindow)
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: kpCommand (mainWindow),
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m_actOnSelection (actOnSelection),
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m_hangle (hangle), m_vangle (vangle),
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m_backgroundColor (mainWindow ? mainWindow->backgroundColor (actOnSelection) : kpColor::invalid),
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m_oldPixmapPtr (0)
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{
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}
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kpToolSkewCommand::~kpToolSkewCommand ()
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{
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delete m_oldPixmapPtr;
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}
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// public virtual [base kpCommand]
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TQString kpToolSkewCommand::name () const
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{
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TQString opName = i18n ("Skew");
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if (m_actOnSelection)
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return i18n ("Selection: %1").arg (opName);
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else
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return opName;
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}
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// public virtual [base kpCommand]
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int kpToolSkewCommand::size () const
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{
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return kpPixmapFX::pixmapSize (m_oldPixmapPtr) +
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m_oldSelection.size ();
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}
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// public virtual [base kpCommand]
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void kpToolSkewCommand::execute ()
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{
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kpDocument *doc = document ();
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if (!doc)
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return;
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TQApplication::setOverrideCursor (TQt::waitCursor);
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m_oldPixmapPtr = new TQPixmap ();
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*m_oldPixmapPtr = *doc->pixmap (m_actOnSelection);
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TQPixmap newPixmap = kpPixmapFX::skew (*doc->pixmap (m_actOnSelection),
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kpToolSkewDialog::horizontalAngleForPixmapFX (m_hangle),
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kpToolSkewDialog::verticalAngleForPixmapFX (m_vangle),
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m_backgroundColor);
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if (m_actOnSelection)
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{
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kpSelection *sel = doc->selection ();
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// Save old selection
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m_oldSelection = *sel;
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// Calculate skewed points
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TQPointArray currentPoints = sel->points ();
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currentPoints.translate (-currentPoints.boundingRect ().x (),
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-currentPoints.boundingRect ().y ());
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TQWMatrix skewMatrix = kpPixmapFX::skewMatrix (
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*doc->pixmap (m_actOnSelection),
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kpToolSkewDialog::horizontalAngleForPixmapFX (m_hangle),
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kpToolSkewDialog::verticalAngleForPixmapFX (m_vangle));
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currentPoints = skewMatrix.map (currentPoints);
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currentPoints.translate (-currentPoints.boundingRect ().x () + m_oldSelection.x (),
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-currentPoints.boundingRect ().y () + m_oldSelection.y ());
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if (currentPoints.boundingRect ().width () == newPixmap.width () &&
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currentPoints.boundingRect ().height () == newPixmap.height ())
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{
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doc->setSelection (kpSelection (currentPoints, newPixmap,
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m_oldSelection.transparency ()));
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}
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else
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{
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// TODO: fix the latter "victim of" problem in kpSelection by
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// allowing the border width & height != pixmap width & height
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// Or maybe autocrop?
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#if DEBUG_KP_TOOL_SKEW
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kdDebug () << "kpToolSkewCommand::execute() currentPoints.boundingRect="
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<< currentPoints.boundingRect ()
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<< " newPixmap: w=" << newPixmap.width ()
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<< " h=" << newPixmap.height ()
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<< " (victim of rounding error and/or skewed-a-(rectangular)-pixmap-that-was-transparent-in-the-corners-making-sel-uselessly-bigger-than-needs-be))"
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<< endl;
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#endif
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doc->setSelection (kpSelection (kpSelection::Rectangle,
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TQRect (currentPoints.boundingRect ().x (),
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currentPoints.boundingRect ().y (),
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newPixmap.width (),
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newPixmap.height ()),
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newPixmap,
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m_oldSelection.transparency ()));
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}
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if (m_mainWindow->tool ())
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m_mainWindow->tool ()->somethingBelowTheCursorChanged ();
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}
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else
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{
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doc->setPixmap (newPixmap);
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}
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TQApplication::restoreOverrideCursor ();
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}
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// public virtual [base kpCommand]
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void kpToolSkewCommand::unexecute ()
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{
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kpDocument *doc = document ();
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if (!doc)
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return;
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TQApplication::setOverrideCursor (TQt::waitCursor);
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TQPixmap oldPixmap = *m_oldPixmapPtr;
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delete m_oldPixmapPtr; m_oldPixmapPtr = 0;
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if (!m_actOnSelection)
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doc->setPixmap (oldPixmap);
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else
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{
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kpSelection oldSelection = m_oldSelection;
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doc->setSelection (oldSelection);
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if (m_mainWindow->tool ())
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m_mainWindow->tool ()->somethingBelowTheCursorChanged ();
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}
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TQApplication::restoreOverrideCursor ();
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}
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/*
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* kpToolSkewDialog
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*/
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// private static
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int kpToolSkewDialog::s_lastWidth = -1,
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kpToolSkewDialog::s_lastHeight = -1;
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// private static
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int kpToolSkewDialog::s_lastHorizontalAngle = 0,
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kpToolSkewDialog::s_lastVerticalAngle = 0;
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kpToolSkewDialog::kpToolSkewDialog (bool actOnSelection, kpMainWindow *tqparent,
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const char *name)
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: kpToolPreviewDialog (kpToolPreviewDialog::AllFeatures,
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false/*don't reserve top row*/,
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actOnSelection ? i18n ("Skew Selection") : i18n ("Skew Image"),
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i18n ("After Skew:"),
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actOnSelection, tqparent, name)
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{
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// Too confusing - disable for now
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s_lastHorizontalAngle = s_lastVerticalAngle = 0;
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createAngleGroupBox ();
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if (s_lastWidth > 0 && s_lastHeight > 0)
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resize (s_lastWidth, s_lastHeight);
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slotUpdate ();
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m_horizontalSkewInput->setEditFocus ();
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}
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kpToolSkewDialog::~kpToolSkewDialog ()
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{
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s_lastWidth = width (), s_lastHeight = height ();
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}
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// private
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void kpToolSkewDialog::createAngleGroupBox ()
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{
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TQGroupBox *angleGroupBox = new TQGroupBox (i18n ("Angle"), mainWidget ());
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addCustomWidget (angleGroupBox);
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TQLabel *horizontalSkewPixmapLabel = new TQLabel (angleGroupBox);
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horizontalSkewPixmapLabel->setPixmap (UserIcon ("image_skew_horizontal"));
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TQLabel *horizontalSkewLabel = new TQLabel (i18n ("&Horizontal:"), angleGroupBox);
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m_horizontalSkewInput = new KIntNumInput (s_lastHorizontalAngle, angleGroupBox);
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m_horizontalSkewInput->setMinValue (-89);
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m_horizontalSkewInput->setMaxValue (+89);
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TQLabel *horizontalSkewDegreesLabel = new TQLabel (i18n ("degrees"), angleGroupBox);
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TQLabel *verticalSkewPixmapLabel = new TQLabel (angleGroupBox);
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verticalSkewPixmapLabel->setPixmap (UserIcon ("image_skew_vertical"));
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TQLabel *verticalSkewLabel = new TQLabel (i18n ("&Vertical:"), angleGroupBox);
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m_verticalSkewInput = new KIntNumInput (s_lastVerticalAngle, angleGroupBox);
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m_verticalSkewInput->setMinValue (-89);
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m_verticalSkewInput->setMaxValue (+89);
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TQLabel *verticalSkewDegreesLabel = new TQLabel (i18n ("degrees"), angleGroupBox);
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horizontalSkewLabel->setBuddy (m_horizontalSkewInput);
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verticalSkewLabel->setBuddy (m_verticalSkewInput);
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TQGridLayout *angleLayout = new TQGridLayout (angleGroupBox, 4, 4,
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marginHint () * 2, spacingHint ());
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angleLayout->addWidget (horizontalSkewPixmapLabel, 0, 0);
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angleLayout->addWidget (horizontalSkewLabel, 0, 1);
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angleLayout->addWidget (m_horizontalSkewInput, 0, 2);
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angleLayout->addWidget (horizontalSkewDegreesLabel, 0, 3);
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angleLayout->addWidget (verticalSkewPixmapLabel, 1, 0);
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angleLayout->addWidget (verticalSkewLabel, 1, 1);
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angleLayout->addWidget (m_verticalSkewInput, 1, 2);
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angleLayout->addWidget (verticalSkewDegreesLabel, 1, 3);
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connect (m_horizontalSkewInput, TQT_SIGNAL (valueChanged (int)),
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this, TQT_SLOT (slotUpdate ()));
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connect (m_verticalSkewInput, TQT_SIGNAL (valueChanged (int)),
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this, TQT_SLOT (slotUpdate ()));
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}
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// private virtual [base kpToolPreviewDialog]
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TQSize kpToolSkewDialog::newDimensions () const
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{
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kpDocument *doc = document ();
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if (!doc)
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return TQSize ();
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TQWMatrix skewMatrix = kpPixmapFX::skewMatrix (*doc->pixmap (),
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horizontalAngleForPixmapFX (),
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verticalAngleForPixmapFX ());
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// TODO: Should we be using TQWMatrix::Areas?
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TQRect skewRect = skewMatrix.mapRect (doc->rect (m_actOnSelection));
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return TQSize (skewRect.width (), skewRect.height ());
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}
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// private virtual [base kpToolPreviewDialog]
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TQPixmap kpToolSkewDialog::transformPixmap (const TQPixmap &pixmap,
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int targetWidth, int targetHeight) const
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{
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return kpPixmapFX::skew (pixmap,
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horizontalAngleForPixmapFX (),
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verticalAngleForPixmapFX (),
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m_mainWindow ? m_mainWindow->backgroundColor (m_actOnSelection) : kpColor::invalid,
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targetWidth,
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targetHeight);
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}
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// private
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void kpToolSkewDialog::updateLastAngles ()
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{
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s_lastHorizontalAngle = horizontalAngle ();
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s_lastVerticalAngle = verticalAngle ();
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}
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// private slot virtual [base kpToolPreviewDialog]
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void kpToolSkewDialog::slotUpdate ()
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{
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updateLastAngles ();
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kpToolPreviewDialog::slotUpdate ();
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}
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// public
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int kpToolSkewDialog::horizontalAngle () const
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{
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return m_horizontalSkewInput->value ();
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}
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// public
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int kpToolSkewDialog::verticalAngle () const
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{
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return m_verticalSkewInput->value ();
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}
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// public static
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int kpToolSkewDialog::horizontalAngleForPixmapFX (int hangle)
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{
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return -hangle;
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}
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// public static
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int kpToolSkewDialog::verticalAngleForPixmapFX (int vangle)
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{
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return -vangle;
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}
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// public
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int kpToolSkewDialog::horizontalAngleForPixmapFX () const
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{
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return kpToolSkewDialog::horizontalAngleForPixmapFX (horizontalAngle ());
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}
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// public
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int kpToolSkewDialog::verticalAngleForPixmapFX () const
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{
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return kpToolSkewDialog::verticalAngleForPixmapFX (verticalAngle ());
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}
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// public virtual [base kpToolPreviewDialog]
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bool kpToolSkewDialog::isNoOp () const
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{
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return (horizontalAngle () == 0) && (verticalAngle () == 0);
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}
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// private slot virtual [base KDialogBase]
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void kpToolSkewDialog::slotOk ()
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{
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TQString message, caption, continueButtonText;
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if (document ()->selection ())
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{
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if (!document ()->selection ()->isText ())
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{
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message =
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i18n ("<qt><p>Skewing the selection to %1x%2"
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" may take a substantial amount of memory."
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" This can reduce system"
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" responsiveness and cause other application resource"
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" problems.</p>"
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"<p>Are you sure want to skew the selection?</p></qt>");
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caption = i18n ("Skew Selection?");
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continueButtonText = i18n ("Sk&ew Selection");
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}
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}
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else
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{
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message =
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i18n ("<qt><p>Skewing the image to %1x%2"
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" may take a substantial amount of memory."
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" This can reduce system"
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" responsiveness and cause other application resource"
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" problems.</p>"
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"<p>Are you sure want to skew the image?</p></qt>");
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caption = i18n ("Skew Image?");
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continueButtonText = i18n ("Sk&ew Image");
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}
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const int newWidth = newDimensions ().width ();
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const int newHeight = newDimensions ().height ();
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if (kpTool::warnIfBigImageSize (m_oldWidth,
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m_oldHeight,
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newWidth, newHeight,
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message.arg (newWidth).arg (newHeight),
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caption,
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continueButtonText,
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this))
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{
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KDialogBase::slotOk ();
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}
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}
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#include <kptoolskew.moc>
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