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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/kptoolautocrop.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
Diffstat (limited to 'kolourpaint/tools/kptoolautocrop.cpp')
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diff --git a/kolourpaint/tools/kptoolautocrop.cpp b/kolourpaint/tools/kptoolautocrop.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.
+*/
+
+// TODO: Color Similarity is obviously useful in Autocrop but it isn't
+// obvious as to how to implement it. The current heuristic,
+// for each side, chooses an arbitrary reference color for which
+// all other candidate pixels in that side are tested against
+// for similarity. But if the reference color happens to be at
+// one extreme of the range of colors in that side, then pixels
+// at the other extreme would not be deemed similar enough. The
+// key is to find the median color as the reference but how do
+// you do this if you don't know which pixels to sample in the first
+// place (that's what you're trying to find)? Chicken and egg situation.
+//
+// The other heuristic that is in doubt is the use of the average
+// color in determining the similarity of sides (it is possible
+// to get vastly differently colors in both sides yet they will be
+// considered similar).
+
+#define DEBUG_KP_TOOL_AUTO_CROP 0
+
+
+#include <kptoolautocrop.h>
+
+#include <qapplication.h>
+#include <qbitmap.h>
+#include <qimage.h>
+#include <qpainter.h>
+
+#include <kdebug.h>
+#include <klocale.h>
+#include <kmessagebox.h>
+
+#include <kpcolortoolbar.h>
+#include <kpcommandhistory.h>
+#include <kpdocument.h>
+#include <kpmainwindow.h>
+#include <kppixmapfx.h>
+#include <kpselection.h>
+#include <kptool.h>
+#include <kpviewmanager.h>
+
+
+kpToolAutoCropBorder::kpToolAutoCropBorder (const QPixmap *pixmapPtr,
+ int processedColorSimilarity)
+ : m_pixmapPtr (pixmapPtr),
+ m_processedColorSimilarity (processedColorSimilarity)
+{
+ invalidate ();
+}
+
+
+// public
+int kpToolAutoCropBorder::size () const
+{
+ return sizeof (kpToolAutoCropBorder);
+}
+
+
+// public
+const QPixmap *kpToolAutoCropBorder::pixmap () const
+{
+ return m_pixmapPtr;
+}
+
+// public
+int kpToolAutoCropBorder::processedColorSimilarity () const
+{
+ return m_processedColorSimilarity;
+}
+
+// public
+QRect kpToolAutoCropBorder::rect () const
+{
+ return m_rect;
+}
+
+// public
+int kpToolAutoCropBorder::left () const
+{
+ return m_rect.left ();
+}
+
+// public
+int kpToolAutoCropBorder::right () const
+{
+ return m_rect.right ();
+}
+
+// public
+int kpToolAutoCropBorder::top () const
+{
+ return m_rect.top ();
+}
+
+// public
+int kpToolAutoCropBorder::bottom () const
+{
+ return m_rect.bottom ();
+}
+
+// public
+kpColor kpToolAutoCropBorder::referenceColor () const
+{
+ return m_referenceColor;
+}
+
+// public
+kpColor kpToolAutoCropBorder::averageColor () const
+{
+ if (!m_rect.isValid ())
+ return kpColor::invalid;
+
+ if (m_referenceColor.isTransparent ())
+ return kpColor::transparent;
+ else if (m_processedColorSimilarity == 0)
+ return m_referenceColor;
+ else
+ {
+ int numPixels = (m_rect.width () * m_rect.height ());
+ if (numPixels <= 0)
+ {
+ kdError () << "kpToolAutoCropBorder::averageColor() rect=" << m_rect << endl;
+ return kpColor::invalid;
+ }
+
+ return kpColor (m_redSum / numPixels,
+ m_greenSum / numPixels,
+ m_blueSum / numPixels);
+ }
+}
+
+bool kpToolAutoCropBorder::isSingleColor () const
+{
+ return m_isSingleColor;
+}
+
+
+// public
+bool kpToolAutoCropBorder::calculate (int isX, int dir)
+{
+#if DEBUG_KP_TOOL_AUTO_CROP && 1
+ kdDebug () << "kpToolAutoCropBorder::calculate() CALLED!" << endl;
+#endif
+ int maxX = m_pixmapPtr->width () - 1;
+ int maxY = m_pixmapPtr->height () - 1;
+
+ QImage image = kpPixmapFX::convertToImage (*m_pixmapPtr);
+ if (image.isNull ())
+ {
+ kdError () << "Border::calculate() could not convert to QImage" << endl;
+ return false;
+ }
+
+ // (sync both branches)
+ if (isX)
+ {
+ int numCols = 0;
+ int startX = (dir > 0) ? 0 : maxX;
+
+ kpColor col = kpPixmapFX::getColorAtPixel (image, startX, 0);
+ for (int x = startX;
+ x >= 0 && x <= maxX;
+ x += dir)
+ {
+ int y;
+ for (y = 0; y <= maxY; y++)
+ {
+ if (!kpPixmapFX::getColorAtPixel (image, x, y).isSimilarTo (col, m_processedColorSimilarity))
+ break;
+ }
+
+ if (y <= maxY)
+ break;
+ else
+ numCols++;
+ }
+
+ if (numCols)
+ {
+ m_rect = QRect (QPoint (startX, 0),
+ QPoint (startX + (numCols - 1) * dir, maxY)).normalize ();
+ m_referenceColor = col;
+ }
+ }
+ else
+ {
+ int numRows = 0;
+ int startY = (dir > 0) ? 0 : maxY;
+
+ kpColor col = kpPixmapFX::getColorAtPixel (image, 0, startY);
+ for (int y = startY;
+ y >= 0 && y <= maxY;
+ y += dir)
+ {
+ int x;
+ for (x = 0; x <= maxX; x++)
+ {
+ if (!kpPixmapFX::getColorAtPixel (image, x, y).isSimilarTo (col, m_processedColorSimilarity))
+ break;
+ }
+
+ if (x <= maxX)
+ break;
+ else
+ numRows++;
+ }
+
+ if (numRows)
+ {
+ m_rect = QRect (QPoint (0, startY),
+ QPoint (maxX, startY + (numRows - 1) * dir)).normalize ();
+ m_referenceColor = col;
+ }
+ }
+
+
+ if (m_rect.isValid ())
+ {
+ m_isSingleColor = true;
+
+ if (m_referenceColor.isOpaque () && m_processedColorSimilarity != 0)
+ {
+ for (int y = m_rect.top (); y <= m_rect.bottom (); y++)
+ {
+ for (int x = m_rect.left (); x <= m_rect.right (); x++)
+ {
+ kpColor colAtPixel = kpPixmapFX::getColorAtPixel (image, x, y);
+
+ if (m_isSingleColor && colAtPixel != m_referenceColor)
+ m_isSingleColor = false;
+
+ m_redSum += colAtPixel.red ();
+ m_greenSum += colAtPixel.green ();
+ m_blueSum += colAtPixel.blue ();
+ }
+ }
+ }
+ }
+
+
+ return true;
+}
+
+// public
+bool kpToolAutoCropBorder::fillsEntirePixmap () const
+{
+ return (m_rect == m_pixmapPtr->rect ());
+}
+
+// public
+bool kpToolAutoCropBorder::exists () const
+{
+ // (will use in an addition so make sure returns 1 or 0)
+ return (m_rect.isValid () ? 1 : 0);
+}
+
+// public
+void kpToolAutoCropBorder::invalidate ()
+{
+ m_rect = QRect ();
+ m_referenceColor = kpColor::invalid;
+ m_redSum = m_greenSum = m_blueSum = 0;
+ m_isSingleColor = false;
+}
+
+
+class kpSetOverrideCursorSaver
+{
+public:
+ kpSetOverrideCursorSaver (const QCursor &cursor)
+ {
+ QApplication::setOverrideCursor (cursor);
+ }
+
+ ~kpSetOverrideCursorSaver ()
+ {
+ QApplication::restoreOverrideCursor ();
+ }
+};
+
+
+void showNothingToAutocropMessage (kpMainWindow *mainWindow, bool actOnSelection)
+{
+ kpSetOverrideCursorSaver cursorSaver (Qt::arrowCursor);
+
+ if (actOnSelection)
+ {
+ KMessageBox::information (mainWindow,
+ i18n ("KolourPaint cannot remove the selection's internal border as it"
+ " could not be located."),
+ i18n ("Cannot Remove Internal Border"),
+ "NothingToAutoCrop");
+ }
+ else
+ {
+ KMessageBox::information (mainWindow,
+ i18n ("KolourPaint cannot automatically crop the image as its"
+ " border could not be located."),
+ i18n ("Cannot Autocrop"),
+ "NothingToAutoCrop");
+ }
+}
+
+bool kpToolAutoCrop (kpMainWindow *mainWindow)
+{
+#if DEBUG_KP_TOOL_AUTO_CROP
+ kdDebug () << "kpToolAutoCrop() CALLED!" << endl;
+#endif
+
+ if (!mainWindow)
+ {
+ kdError () << "kpToolAutoCrop() passed NULL mainWindow" << endl;
+ return false;
+ }
+
+ kpDocument *doc = mainWindow->document ();
+ if (!doc)
+ {
+ kdError () << "kpToolAutoCrop() passed NULL document" << endl;
+ return false;
+ }
+
+ // OPT: if already pulled selection pixmap, no need to do it again here
+ QPixmap pixmap = doc->selection () ? doc->getSelectedPixmap () : *doc->pixmap ();
+ if (pixmap.isNull ())
+ {
+ kdError () << "kptoolAutoCrop() pased NULL pixmap" << endl;
+ return false;
+ }
+
+ kpViewManager *vm = mainWindow->viewManager ();
+ if (!vm)
+ {
+ kdError () << "kpToolAutoCrop() passed NULL vm" << endl;
+ return false;
+ }
+
+ int processedColorSimilarity = mainWindow->colorToolBar ()->processedColorSimilarity ();
+ kpToolAutoCropBorder leftBorder (&pixmap, processedColorSimilarity),
+ rightBorder (&pixmap, processedColorSimilarity),
+ topBorder (&pixmap, processedColorSimilarity),
+ botBorder (&pixmap, processedColorSimilarity);
+
+
+ kpSetOverrideCursorSaver cursorSaver (Qt::waitCursor);
+
+ // TODO: With Colour Similarity, a lot of weird (and wonderful) things can
+ // happen resulting in a huge number of code paths. Needs refactoring
+ // and regression testing.
+ //
+ // TODO: e.g. When the top fills entire rect but bot doesn't we could
+ // invalidate top and continue autocrop.
+ int numRegions = 0;
+ if (!leftBorder.calculate (true/*x*/, +1/*going right*/) ||
+ leftBorder.fillsEntirePixmap () ||
+ !rightBorder.calculate (true/*x*/, -1/*going left*/) ||
+ rightBorder.fillsEntirePixmap () ||
+ !topBorder.calculate (false/*y*/, +1/*going down*/) ||
+ topBorder.fillsEntirePixmap () ||
+ !botBorder.calculate (false/*y*/, -1/*going up*/) ||
+ botBorder.fillsEntirePixmap () ||
+ ((numRegions = leftBorder.exists () +
+ rightBorder.exists () +
+ topBorder.exists () +
+ botBorder.exists ()) == 0))
+ {
+ #if DEBUG_KP_TOOL_AUTO_CROP
+ kdDebug () << "\tcan't find border; leftBorder.rect=" << leftBorder.rect ()
+ << " rightBorder.rect=" << rightBorder.rect ()
+ << " topBorder.rect=" << topBorder.rect ()
+ << " botBorder.rect=" << botBorder.rect ()
+ << endl;
+ #endif
+ ::showNothingToAutocropMessage (mainWindow, (bool) doc->selection ());
+ return false;
+ }
+
+#if DEBUG_KP_TOOL_AUTO_CROP
+ kdDebug () << "\tnumRegions=" << numRegions << endl;
+ kdDebug () << "\t\tleft=" << leftBorder.rect ()
+ << " refCol=" << (leftBorder.exists () ? (int *) leftBorder.referenceColor ().toQRgb () : 0)
+ << " avgCol=" << (leftBorder.exists () ? (int *) leftBorder.averageColor ().toQRgb () : 0)
+ << endl;
+ kdDebug () << "\t\tright=" << rightBorder.rect ()
+ << " refCol=" << (rightBorder.exists () ? (int *) rightBorder.referenceColor ().toQRgb () : 0)
+ << " avgCol=" << (rightBorder.exists () ? (int *) rightBorder.averageColor ().toQRgb () : 0)
+ << endl;
+ kdDebug () << "\t\ttop=" << topBorder.rect ()
+ << " refCol=" << (topBorder.exists () ? (int *) topBorder.referenceColor ().toQRgb () : 0)
+ << " avgCol=" << (topBorder.exists () ? (int *) topBorder.averageColor ().toQRgb () : 0)
+ << endl;
+ kdDebug () << "\t\tbot=" << botBorder.rect ()
+ << " refCol=" << (botBorder.exists () ? (int *) botBorder.referenceColor ().toQRgb () : 0)
+ << " avgCol=" << (botBorder.exists () ? (int *) botBorder.averageColor ().toQRgb () : 0)
+ << endl;
+#endif
+
+
+ // In case e.g. the user pastes a solid, coloured-in rectangle,
+ // we favour killing the bottom and right regions
+ // (these regions probably contain the unwanted whitespace due
+ // to the doc being bigger than the pasted selection to start with).
+ //
+ // We also kill if they kiss or even overlap.
+
+ if (leftBorder.exists () && rightBorder.exists ())
+ {
+ const kpColor leftCol = leftBorder.averageColor ();
+ const kpColor rightCol = rightBorder.averageColor ();
+
+ if ((numRegions == 2 && !leftCol.isSimilarTo (rightCol, processedColorSimilarity)) ||
+ leftBorder.right () >= rightBorder.left () - 1) // kissing or overlapping
+ {
+ #if DEBUG_KP_TOOL_AUTO_CROP
+ kdDebug () << "\tignoring left border" << endl;
+ #endif
+ leftBorder.invalidate ();
+ }
+ }
+
+ if (topBorder.exists () && botBorder.exists ())
+ {
+ const kpColor topCol = topBorder.averageColor ();
+ const kpColor botCol = botBorder.averageColor ();
+
+ if ((numRegions == 2 && !topCol.isSimilarTo (botCol, processedColorSimilarity)) ||
+ topBorder.bottom () >= botBorder.top () - 1) // kissing or overlapping
+ {
+ #if DEBUG_KP_TOOL_AUTO_CROP
+ kdDebug () << "\tignoring top border" << endl;
+ #endif
+ topBorder.invalidate ();
+ }
+ }
+
+
+ mainWindow->addImageOrSelectionCommand (
+ new kpToolAutoCropCommand (
+ (bool) doc->selection (),
+ leftBorder, rightBorder,
+ topBorder, botBorder,
+ mainWindow));
+
+
+ return true;
+}
+
+
+kpToolAutoCropCommand::kpToolAutoCropCommand (bool actOnSelection,
+ const kpToolAutoCropBorder &leftBorder,
+ const kpToolAutoCropBorder &rightBorder,
+ const kpToolAutoCropBorder &topBorder,
+ const kpToolAutoCropBorder &botBorder,
+ kpMainWindow *mainWindow)
+ : kpNamedCommand (name (actOnSelection, DontShowAccel), mainWindow),
+ m_actOnSelection (actOnSelection),
+ m_leftBorder (leftBorder),
+ m_rightBorder (rightBorder),
+ m_topBorder (topBorder),
+ m_botBorder (botBorder),
+ m_leftPixmap (0),
+ m_rightPixmap (0),
+ m_topPixmap (0),
+ m_botPixmap (0)
+{
+ kpDocument *doc = document ();
+ if (!doc)
+ {
+ kdError () << "kpToolAutoCropCommand::<ctor>() without doc" << endl;
+ m_oldWidth = 0;
+ m_oldHeight = 0;
+ return;
+ }
+
+ m_oldWidth = doc->width (m_actOnSelection);
+ m_oldHeight = doc->height (m_actOnSelection);
+}
+
+kpToolAutoCropCommand::~kpToolAutoCropCommand ()
+{
+ deleteUndoPixmaps ();
+}
+
+
+// public static
+QString kpToolAutoCropCommand::name (bool actOnSelection, int options)
+{
+ if (actOnSelection)
+ {
+ if (options & ShowAccel)
+ return i18n ("Remove Internal B&order");
+ else
+ return i18n ("Remove Internal Border");
+ }
+ else
+ {
+ if (options & ShowAccel)
+ return i18n ("Autocr&op");
+ else
+ return i18n ("Autocrop");
+ }
+}
+
+
+// public virtual [base kpCommand]
+int kpToolAutoCropCommand::size () const
+{
+ return m_leftBorder.size () +
+ m_rightBorder.size () +
+ m_topBorder.size () +
+ m_botBorder.size () +
+ kpPixmapFX::pixmapSize (m_leftPixmap) +
+ kpPixmapFX::pixmapSize (m_rightPixmap) +
+ kpPixmapFX::pixmapSize (m_topPixmap) +
+ kpPixmapFX::pixmapSize (m_botPixmap) +
+ m_oldSelection.size ();
+}
+
+
+// private
+void kpToolAutoCropCommand::getUndoPixmap (const kpToolAutoCropBorder &border, QPixmap **pixmap)
+{
+ kpDocument *doc = document ();
+
+#if DEBUG_KP_TOOL_AUTO_CROP && 1
+ kdDebug () << "kpToolAutoCropCommand::getUndoPixmap()" << endl;
+ kdDebug () << "\tpixmap=" << pixmap
+ << " border: rect=" << border.rect ()
+ << " isSingleColor=" << border.isSingleColor ()
+ << endl;
+#endif
+
+ if (!doc)
+ return;
+
+ if (pixmap && border.exists () && !border.isSingleColor ())
+ {
+ if (*pixmap)
+ {
+ #if DEBUG_KP_TOOL_AUTO_CROP && 1
+ kdDebug () << "\talready have *pixmap - delete it" << endl;
+ #endif
+ delete *pixmap;
+ }
+
+ *pixmap = new QPixmap (
+ kpPixmapFX::getPixmapAt (*doc->pixmap (m_actOnSelection),
+ border.rect ()));
+ }
+}
+
+
+// private
+void kpToolAutoCropCommand::getUndoPixmaps ()
+{
+ getUndoPixmap (m_leftBorder, &m_leftPixmap);
+ getUndoPixmap (m_rightBorder, &m_rightPixmap);
+ getUndoPixmap (m_topBorder, &m_topPixmap);
+ getUndoPixmap (m_botBorder, &m_botPixmap);
+}
+
+// private
+void kpToolAutoCropCommand::deleteUndoPixmaps ()
+{
+#if DEBUG_KP_TOOL_AUTO_CROP && 1
+ kdDebug () << "kpToolAutoCropCommand::deleteUndoPixmaps()" << endl;
+#endif
+
+ delete m_leftPixmap; m_leftPixmap = 0;
+ delete m_rightPixmap; m_rightPixmap = 0;
+ delete m_topPixmap; m_topPixmap = 0;
+ delete m_botPixmap; m_botPixmap = 0;
+}
+
+
+// public virtual [base kpCommand]
+void kpToolAutoCropCommand::execute ()
+{
+ if (!m_contentsRect.isValid ())
+ m_contentsRect = contentsRect ();
+
+
+ getUndoPixmaps ();
+
+
+ kpDocument *doc = document ();
+ if (!doc)
+ return;
+
+
+ QPixmap pixmapWithoutBorder =
+ kpTool::neededPixmap (*doc->pixmap (m_actOnSelection),
+ m_contentsRect);
+
+
+ if (!m_actOnSelection)
+ doc->setPixmap (pixmapWithoutBorder);
+ else
+ {
+ m_oldSelection = *doc->selection ();
+ m_oldSelection.setPixmap (QPixmap ());
+
+ // m_contentsRect is relative to the top of the sel
+ // while sel is relative to the top of the doc
+ QRect rect = m_contentsRect;
+ rect.moveBy (m_oldSelection.x (), m_oldSelection.y ());
+
+ kpSelection sel (kpSelection::Rectangle,
+ rect,
+ pixmapWithoutBorder,
+ m_oldSelection.transparency ());
+
+ doc->setSelection (sel);
+
+ if (m_mainWindow->tool ())
+ m_mainWindow->tool ()->somethingBelowTheCursorChanged ();
+ }
+}
+
+// public virtual [base kpCommand]
+void kpToolAutoCropCommand::unexecute ()
+{
+#if DEBUG_KP_TOOL_AUTO_CROP && 1
+ kdDebug () << "kpToolAutoCropCommand::unexecute()" << endl;
+#endif
+
+ kpDocument *doc = document ();
+ if (!doc)
+ return;
+
+ QPixmap pixmap (m_oldWidth, m_oldHeight);
+ QBitmap maskBitmap;
+
+ // restore the position of the centre image
+ kpPixmapFX::setPixmapAt (&pixmap, m_contentsRect,
+ *doc->pixmap (m_actOnSelection));
+
+ // draw the borders
+
+ QPainter painter (&pixmap);
+ QPainter maskPainter;
+
+ const kpToolAutoCropBorder *borders [] =
+ {
+ &m_leftBorder, &m_rightBorder,
+ &m_topBorder, &m_botBorder,
+ 0
+ };
+
+ const QPixmap *pixmaps [] =
+ {
+ m_leftPixmap, m_rightPixmap,
+ m_topPixmap, m_botPixmap,
+ 0
+ };
+
+ const QPixmap **p = pixmaps;
+ for (const kpToolAutoCropBorder **b = borders; *b; b++, p++)
+ {
+ if (!(*b)->exists ())
+ continue;
+
+ if ((*b)->isSingleColor ())
+ {
+ kpColor col = (*b)->referenceColor ();
+ #if DEBUG_KP_TOOL_AUTO_CROP && 1
+ kdDebug () << "\tdrawing border " << (*b)->rect ()
+ << " rgb=" << (int *) col.toQRgb () /* %X hack */ << endl;
+ #endif
+
+ if (col.isOpaque ())
+ {
+ painter.fillRect ((*b)->rect (), col.toQColor ());
+ }
+ else
+ {
+ if (maskBitmap.isNull ())
+ {
+ // TODO: dangerous when a painter is active on pixmap?
+ maskBitmap = kpPixmapFX::getNonNullMask (pixmap);
+ maskPainter.begin (&maskBitmap);
+ }
+
+ maskPainter.fillRect ((*b)->rect (), Qt::color0/*transparent*/);
+ }
+ }
+ else
+ {
+ #if DEBUG_KP_TOOL_AUTO_CROP && 1
+ kdDebug () << "\trestoring border pixmap " << (*b)->rect () << endl;
+ #endif
+ // **p cannot contain a single transparent pixel because
+ // if it did, all other pixels must be transparent (only
+ // transparent pixels are similar to transparent pixels)
+ // and the other branch would execute.
+ if (*p)
+ {
+ // TODO: We should really edit the mask here. Due to good
+ // luck (if "maskBitmap" is initialized above, this region
+ // will be marked as opaque in the mask; if it's not
+ // initialized, we will be opaque by default), we
+ // don't actually have to edit the mask but this is
+ // highly error-prone.
+ painter.drawPixmap ((*b)->rect (), **p);
+ }
+ }
+ }
+
+ if (maskPainter.isActive ())
+ maskPainter.end ();
+
+ painter.end ();
+
+ if (!maskBitmap.isNull ())
+ pixmap.setMask (maskBitmap);
+
+
+ if (!m_actOnSelection)
+ doc->setPixmap (pixmap);
+ else
+ {
+ kpSelection sel = m_oldSelection;
+ sel.setPixmap (pixmap);
+
+ doc->setSelection (sel);
+
+ if (m_mainWindow->tool ())
+ m_mainWindow->tool ()->somethingBelowTheCursorChanged ();
+ }
+
+
+ deleteUndoPixmaps ();
+}
+
+
+// private
+QRect kpToolAutoCropCommand::contentsRect () const
+{
+ const QPixmap *pixmap = document ()->pixmap (m_actOnSelection);
+
+ QPoint topLeft (m_leftBorder.exists () ?
+ m_leftBorder.rect ().right () + 1 :
+ 0,
+ m_topBorder.exists () ?
+ m_topBorder.rect ().bottom () + 1 :
+ 0);
+ QPoint botRight (m_rightBorder.exists () ?
+ m_rightBorder.rect ().left () - 1 :
+ pixmap->width () - 1,
+ m_botBorder.exists () ?
+ m_botBorder.rect ().top () - 1 :
+ pixmap->height () - 1);
+
+ return QRect (topLeft, botRight);
+}