mirror of
https://bitbucket.org/smil3y/kde-extraapps.git
synced 2025-02-25 19:32:54 +00:00
141 lines
4.7 KiB
C++
141 lines
4.7 KiB
C++
|
|
/*
|
|
Copyright (c) 2003-2007 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_FREE_FROM_SELECTION 0
|
|
|
|
|
|
#include <kpToolFreeFormSelection.h>
|
|
|
|
#include <KDebug>
|
|
#include <KLocale>
|
|
|
|
#include <kpDocument.h>
|
|
#include <kpFreeFormImageSelection.h>
|
|
#include <kpToolSelectionEnvironment.h>
|
|
|
|
//---------------------------------------------------------------------
|
|
|
|
kpToolFreeFormSelection::kpToolFreeFormSelection (kpToolSelectionEnvironment *environ,
|
|
QObject *parent)
|
|
: kpAbstractImageSelectionTool (i18n ("Selection (Free-Form)"),
|
|
i18n ("Makes a free-form selection"),
|
|
Qt::Key_M,
|
|
environ, parent,
|
|
"tool_free_form_selection")
|
|
{
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
|
|
kpToolFreeFormSelection::~kpToolFreeFormSelection ()
|
|
{
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
|
|
// protected virtual [base kpAbstractSelectionTool]
|
|
bool kpToolFreeFormSelection::drawCreateMoreSelectionAndUpdateStatusBar (
|
|
bool dragAccepted,
|
|
const QPoint &accidentalDragAdjustedPoint,
|
|
const QRect &/*normalizedRect*/)
|
|
{
|
|
#if DEBUG_KP_TOOL_FREE_FROM_SELECTION
|
|
kDebug () << "kpToolFreeFormSelection::createMoreSelectionAndUpdateStatusBar("
|
|
<< "dragAccepted=" << dragAccepted
|
|
<< ",accidentalDragAdjustedPoint=" << accidentalDragAdjustedPoint
|
|
<< ")" << endl;
|
|
#endif
|
|
|
|
// Prevent unintentional creation of 1-pixel selections.
|
|
if (!dragAccepted && accidentalDragAdjustedPoint == startPoint ())
|
|
{
|
|
#if DEBUG_KP_TOOL_FREE_FROM_SELECTION && 1
|
|
kDebug () << "\tnon-text NOP - return";
|
|
#endif
|
|
setUserShapePoints (accidentalDragAdjustedPoint);
|
|
return false;
|
|
}
|
|
|
|
Q_ASSERT (accidentalDragAdjustedPoint == currentPoint ());
|
|
Q_ASSERT (dragAccepted == (bool) document ()->selection ());
|
|
|
|
const kpFreeFormImageSelection *oldPointsSel = 0;
|
|
if (document ()->selection ())
|
|
{
|
|
kpAbstractSelection *sel = document ()->selection ();
|
|
Q_ASSERT (dynamic_cast <kpFreeFormImageSelection *> (sel));
|
|
oldPointsSel = static_cast <kpFreeFormImageSelection *> (sel);
|
|
}
|
|
|
|
|
|
QPolygon points;
|
|
|
|
// First point in drag?
|
|
if (!dragAccepted)
|
|
{
|
|
points.append (startPoint ());
|
|
}
|
|
// Not first point in drag.
|
|
else
|
|
{
|
|
if ( !oldPointsSel ) // assert above says we never reach this, but let's make coverity happy
|
|
return false;
|
|
|
|
// Get existing points in selection.
|
|
points = oldPointsSel->cardinallyAdjacentPoints ();
|
|
}
|
|
|
|
|
|
#if DEBUG_KP_TOOL_FREE_FROM_SELECTION
|
|
kDebug () << "\tlast old point=" << points.last ();
|
|
#endif
|
|
|
|
// TODO: There should be an upper limit on this before drawing the
|
|
// polygon becomes too slow.
|
|
points.append (accidentalDragAdjustedPoint);
|
|
|
|
|
|
document ()->setSelection (
|
|
kpFreeFormImageSelection (points, environ ()->imageSelectionTransparency ()));
|
|
|
|
// Prevent accidental usage of dangling pointer to old selection
|
|
// (deleted by kpDocument::setSelection()).
|
|
oldPointsSel = 0;
|
|
|
|
#if DEBUG_KP_TOOL_FREE_FROM_SELECTION && 1
|
|
kDebug () << "\t\tfreeform; #points="
|
|
<< document ()->selection ()->calculatePoints ().count ()
|
|
<< endl;
|
|
#endif
|
|
|
|
setUserShapePoints (accidentalDragAdjustedPoint);
|
|
|
|
return true;
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|