diff options
Diffstat (limited to 'kolourpaint/tools/kptoolfloodfill.cpp')
| -rw-r--r-- | kolourpaint/tools/kptoolfloodfill.cpp | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/kolourpaint/tools/kptoolfloodfill.cpp b/kolourpaint/tools/kptoolfloodfill.cpp new file mode 100644 index 00000000..bb17d701 --- /dev/null +++ b/kolourpaint/tools/kptoolfloodfill.cpp @@ -0,0 +1,261 @@ + +/* + 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_FLOOD_FILL 0 + + +#include <kptoolfloodfill.h> + +#include <qapplication.h> +#include <qcursor.h> +#include <qpainter.h> +#include <qpixmap.h> + +#include <kdebug.h> +#include <klocale.h> + +#include <kpcommandhistory.h> +#include <kpdefs.h> +#include <kpdocument.h> +#include <kpmainwindow.h> +#include <kpview.h> +#include <kpviewmanager.h> + + +/* + * kpToolFloodFill + */ + +kpToolFloodFill::kpToolFloodFill (kpMainWindow *mainWindow) + : kpTool (i18n ("Flood Fill"), i18n ("Fills regions in the image"), + Qt::Key_F, + mainWindow, "tool_flood_fill"), + m_currentCommand (0) +{ +} + +kpToolFloodFill::~kpToolFloodFill () +{ +} + +QString kpToolFloodFill::haventBegunDrawUserMessage () const +{ + return i18n ("Click to fill a region."); +} + +void kpToolFloodFill::begin () +{ + setUserMessage (haventBegunDrawUserMessage ()); +} + +// virtual +void kpToolFloodFill::beginDraw () +{ +#if DEBUG_KP_TOOL_FLOOD_FILL && 1 + kdDebug () << "kpToolFloodFill::beginDraw()" << endl; +#endif + + QApplication::setOverrideCursor (Qt::waitCursor); + + // Flood Fill is an expensive CPU operation so we only fill at a + // mouse click (beginDraw ()), not on mouse move (virtually draw()) + m_currentCommand = new kpToolFloodFillCommand (m_currentPoint.x (), m_currentPoint.y (), + color (m_mouseButton), processedColorSimilarity (), + mainWindow ()); + + if (m_currentCommand->prepareColorToChange ()) + { + #if DEBUG_KP_TOOL_FLOOD_FILL && 1 + kdDebug () << "\tperforming new-doc-corner-case check" << endl; + #endif + if (document ()->url ().isEmpty () && !document ()->isModified ()) + { + m_currentCommand->setFillEntirePixmap (); + m_currentCommand->execute (); + } + else if (m_currentCommand->prepare ()) + { + m_currentCommand->execute (); + } + else + { + kdError () << "kpToolFloodFill::beginDraw() could not fill!" << endl; + } + } + else + { + kdError () << "kpToolFloodFill::beginDraw() could not prepareColorToChange!" << endl; + } + + QApplication::restoreOverrideCursor (); + + setUserMessage (cancelUserMessage ()); +} + +// virtual +void kpToolFloodFill::draw (const QPoint &thisPoint, const QPoint &, const QRect &) +{ + setUserShapePoints (thisPoint); +} + +// virtual +void kpToolFloodFill::cancelShape () +{ +#if 0 + endDraw (QPoint (), QRect ()); + mainWindow ()->commandHistory ()->undo (); +#else + m_currentCommand->unexecute (); + + delete m_currentCommand; + m_currentCommand = 0; +#endif + + setUserMessage (i18n ("Let go of all the mouse buttons.")); +} + +void kpToolFloodFill::releasedAllButtons () +{ + setUserMessage (haventBegunDrawUserMessage ()); +} + +// virtual +void kpToolFloodFill::endDraw (const QPoint &, const QRect &) +{ + mainWindow ()->commandHistory ()->addCommand (m_currentCommand, + false /* no exec - we already did it up there */); + + // don't delete + m_currentCommand = 0; + setUserMessage (haventBegunDrawUserMessage ()); +} + + +/* + * kpToolFloodFillCommand + */ + +kpToolFloodFillCommand::kpToolFloodFillCommand (int x, int y, + const kpColor &color, int processedColorSimilarity, + kpMainWindow *mainWindow) + : kpCommand (mainWindow), + kpFloodFill (document ()->pixmap (), x, y, color, processedColorSimilarity), + m_fillEntirePixmap (false) +{ +} + +kpToolFloodFillCommand::~kpToolFloodFillCommand () +{ +} + + +// public virtual [base kpCommand] +QString kpToolFloodFillCommand::name () const +{ + return i18n ("Flood Fill"); +} + +// public virtual [base kpCommand] +int kpToolFloodFillCommand::size () const +{ + return kpFloodFill::size () + kpPixmapFX::pixmapSize (m_oldPixmap); +} + + +void kpToolFloodFillCommand::setFillEntirePixmap (bool yes) +{ + m_fillEntirePixmap = yes; +} + + +// virtual +void kpToolFloodFillCommand::execute () +{ +#if DEBUG_KP_TOOL_FLOOD_FILL && 1 + kdDebug () << "kpToolFloodFillCommand::execute() m_fillEntirePixmap=" << m_fillEntirePixmap << endl; +#endif + + kpDocument *doc = document (); + if (!doc) + return; + + + if (m_fillEntirePixmap) + { + doc->fill (kpFloodFill::color ()); + } + else + { + QRect rect = kpFloodFill::boundingRect (); + if (rect.isValid ()) + { + QApplication::setOverrideCursor (QCursor::waitCursor); + + m_oldPixmap = doc->getPixmapAt (rect); + + kpFloodFill::fill (); + doc->slotContentsChanged (rect); + + QApplication::restoreOverrideCursor (); + } + else + { + #if DEBUG_KP_TOOL_FLOOD_FILL && 1 + kdDebug () << "\tinvalid boundingRect - must be NOP case" << endl; + #endif + } + } +} + +// virtual +void kpToolFloodFillCommand::unexecute () +{ + kpDocument *doc = document (); + if (!doc) + return; + + + if (m_fillEntirePixmap) + { + doc->fill (kpFloodFill::colorToChange ()); + } + else + { + QRect rect = kpFloodFill::boundingRect (); + if (rect.isValid ()) + { + doc->setPixmapAt (m_oldPixmap, rect.topLeft ()); + + m_oldPixmap.resize (0, 0); + + doc->slotContentsChanged (rect); + } + } +} + +#include <kptoolfloodfill.moc> |