forked from openkylin/kolourpaint
126 lines
3.9 KiB
C++
126 lines
3.9 KiB
C++
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/*
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Copyright (c) 2003-2007 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_POLYLINE 0
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#include "kpToolPolyline.h"
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#include "kpLogCategories.h"
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#include "environments/tools/kpToolEnvironment.h"
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#include "pixmapfx/kpPixmapFX.h"
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#include <KLocalizedString>
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#include <QPainter>
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#include <QPen>
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//--------------------------------------------------------------------------------
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kpToolPolyline::kpToolPolyline (kpToolEnvironment *environ, QObject *parent)
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: kpToolPolygonalBase (
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i18n ("Connected Lines"),
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i18n ("Draws connected lines"),
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&drawShape,
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Qt::Key_N,
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environ, parent,
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QStringLiteral("tool_polyline"))
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{
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}
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//--------------------------------------------------------------------------------
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// private virtual [base kpToolPolygonalBase]
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QString kpToolPolyline::haventBegunShapeUserMessage () const
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{
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return i18n ("Drag to draw the first line.");
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}
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//--------------------------------------------------------------------------------
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// public static
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void kpToolPolyline::drawShape(kpImage *image,
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const QPolygon &points,
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const kpColor &fcolor, int penWidth,
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const kpColor &bcolor,
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bool isFinal)
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{
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(void) bcolor;
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(void) isFinal;
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QPainter painter(image);
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painter.setRenderHint(QPainter::Antialiasing, kpToolEnvironment::drawAntiAliased);
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painter.setPen(QPen(fcolor.toQColor(), penWidth, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
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if ( kpPixmapFX::Only1PixelInPointArray(points) ) {
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painter.drawPoint(points[0]);
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}
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else {
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painter.drawPolyline(points);
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}
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}
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//--------------------------------------------------------------------------------
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// public virtual [base kpTool]
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void kpToolPolyline::endDraw (const QPoint &, const QRect &)
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{
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#if DEBUG_KP_TOOL_POLYLINE
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qCDebug(kpLogTools) << "kpToolPolyline::endDraw() points="
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<< points ()->toList ();
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#endif
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// A click of the other mouse button (to finish shape, instead of adding
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// another control point) would have caused endShape() to have been
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// called in kpToolPolygonalBase::beginDraw(). The points list would now
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// be empty. We are being called by kpTool::mouseReleaseEvent().
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if (points ()->count () == 0) {
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return;
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}
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if (points ()->count () >= kpToolPolygonalBase::MaxPoints)
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{
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#if DEBUG_KP_TOOL_POLYLINE
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qCDebug(kpLogTools) << "\tending shape";
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#endif
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endShape ();
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return;
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}
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if (originatingMouseButton () == 0)
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{
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setUserMessage (i18n ("Left drag another line or right click to finish."));
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}
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else
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{
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setUserMessage (i18n ("Right drag another line or left click to finish."));
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}
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}
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