File indexing completed on 2024-12-15 04:03:25

0001 
0002 /*
0003    Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
0004    All rights reserved.
0005 
0006    Redistribution and use in source and binary forms, with or without
0007    modification, are permitted provided that the following conditions
0008    are met:
0009 
0010    1. Redistributions of source code must retain the above copyright
0011       notice, this list of conditions and the following disclaimer.
0012    2. Redistributions in binary form must reproduce the above copyright
0013       notice, this list of conditions and the following disclaimer in the
0014       documentation and/or other materials provided with the distribution.
0015 
0016    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
0017    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
0018    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
0019    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
0020    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
0021    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
0022    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
0023    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
0024    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
0025    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
0026 */
0027 
0028 #define DEBUG_KP_TOOL_ELLIPTICAL_SELECTION 0
0029 
0030 
0031 #include "kpToolEllipticalSelection.h"
0032 
0033 #include "kpLogCategories.h"
0034 #include "document/kpDocument.h"
0035 #include "layers/selections/image/kpEllipticalImageSelection.h"
0036 #include "environments/tools/selection/kpToolSelectionEnvironment.h"
0037 
0038 #include <KLocalizedString>
0039 
0040 kpToolEllipticalSelection::kpToolEllipticalSelection (kpToolSelectionEnvironment *environ,
0041         QObject *parent)
0042     : kpAbstractImageSelectionTool (i18n ("Selection (Elliptical)"),
0043                        i18n ("Makes an elliptical or circular selection"),
0044                        Qt::Key_I,
0045                        environ, parent,
0046                        QStringLiteral("tool_elliptical_selection"))
0047 {
0048 }
0049 
0050 kpToolEllipticalSelection::~kpToolEllipticalSelection () = default;
0051 
0052 
0053 // protected virtual [base kpAbstractSelectionTool]
0054 bool kpToolEllipticalSelection::drawCreateMoreSelectionAndUpdateStatusBar (
0055         bool dragAccepted,
0056         const QPoint &accidentalDragAdjustedPoint,
0057         const QRect &normalizedRect)
0058 {
0059     // Prevent unintentional creation of 1-pixel selections.
0060     if (!dragAccepted && accidentalDragAdjustedPoint == startPoint ())
0061     {
0062     #if DEBUG_KP_TOOL_ELLIPTICAL_SELECTION && 1
0063         qCDebug(kpLogTools) << "\tnon-text NOP - return";
0064     #endif
0065         setUserShapePoints (accidentalDragAdjustedPoint);
0066         return false;
0067     }
0068 
0069     Q_ASSERT (accidentalDragAdjustedPoint == currentPoint ());
0070 
0071     document ()->setSelection (
0072         kpEllipticalImageSelection (
0073             normalizedRect,
0074             environ ()->imageSelectionTransparency ()));
0075 
0076     setUserShapePoints (startPoint (), currentPoint ());
0077 
0078     return true;
0079 }