kolourpaint/tools/polygonal/kpToolPolyline.cpp

   1
   2 /*
   3    Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
   4    All rights reserved.
   5
   6    Redistribution and use in source and binary forms, with or without
   7    modification, are permitted provided that the following conditions
   8    are met:
   9
  10    1. Redistributions of source code must retain the above copyright
  11       notice, this list of conditions and the following disclaimer.
  12    2. Redistributions in binary form must reproduce the above copyright
  13       notice, this list of conditions and the following disclaimer in the
  14       documentation and/or other materials provided with the distribution.
  15
  16    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26 */
  27
  28
  29 #define DEBUG_KP_TOOL_POLYLINE 0
  30
  31
  32 #include <kpToolPolyline.h>
  33
  34 #include <kdebug.h>
  35 #include <klocale.h>
  36
  37 #include <kpPainter.h>
  38
  39
  40 kpToolPolyline::kpToolPolyline (kpToolEnvironment *environ, QObject *parent)
  41     : kpToolPolygonalBase (
  42         i18n ("Connected Lines"),
  43         i18n ("Draws connected lines"),
  44         &DrawShape,
  45         Qt::Key_N,
  46         environ, parent,
  47         "tool_polyline")
  48 {
  49 }
  50
  51 kpToolPolyline::~kpToolPolyline ()
  52 {
  53 }
  54
  55
  56 // private virtual [base kpToolPolygonalBase]
  57 QString kpToolPolyline::haventBegunShapeUserMessage () const
  58 {
  59     return i18n ("Drag to draw the first line.");
  60 }
  61
  62
  63 // public static
  64 void kpToolPolyline::DrawShape (kpImage *image,
  65         const QPolygon &points,
  66         const kpColor &fcolor, int penWidth,
  67         const kpColor &bcolor,
  68         bool isFinal)
  69 {
  70     (void) bcolor;
  71     (void) isFinal;
  72
  73     kpPainter::drawPolyline (image,
  74         points,
  75         fcolor, penWidth);
  76 }
  77
  78
  79 // public virtual [base kpTool]
  80 void kpToolPolyline::endDraw (const QPoint &, const QRect &)
  81 {
  82 #if DEBUG_KP_TOOL_POLYLINE
  83     kDebug () << "kpToolPolyline::endDraw()  points="
  84         << points ()->toList () << endl;
  85 #endif
  86
  87     // A click of the other mouse button (to finish shape, instead of adding
  88     // another control point) would have caused endShape() to have been
  89     // called in kpToolPolygonalBase::beginDraw().  The points list would now
  90     // be empty.  We are being called by kpTool::mouseReleaseEvent().
  91     if (points ()->count () == 0)
  92         return;
  93
  94     if (points ()->count () >= kpToolPolygonalBase::MaxPoints)
  95     {
  96     #if DEBUG_KP_TOOL_POLYLINE
  97         kDebug () << "\tending shape";
  98     #endif
  99         endShape ();
 100         return;
 101     }
 102
 103     if (originatingMouseButton () == 0)
 104     {
 105         setUserMessage (i18n ("Left drag another line or right click to finish."));
 106     }
 107     else
 108     {
 109         setUserMessage (i18n ("Right drag another line or left click to finish."));
 110     }
 111 }
 112
 113
 114 #include <kpToolPolyline.moc>