File indexing completed on 2025-07-13 04:09:58

 /***************************************************************************
  *                                                                         *
  *   copyright : (C) 2005 The University of Toronto                        *
  *                   netterfield@astro.utoronto.ca                         *
 *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
  ***************************************************************************/
 
 
 #include "painter.h"
 
 namespace Kst {
 
 Painter::Painter(PaintType t)
 : QPainter(), _type(t), _drawInlineUI(false), _makingMask(false) {
 }
 
 
 Painter::~Painter() {
 }
 
 
 void Painter::setType(PaintType t) {
   _type = t;
 }
 
 
 Painter::PaintType Painter::type() const {
   return _type;
 }
 
 
 bool Painter::drawInlineUI() const {
   return _drawInlineUI;
 }
 
 
 void Painter::setDrawInlineUI(bool draw) {
   _drawInlineUI = draw;
 }
 
 
 bool Painter::makingMask() const {
   return _makingMask;
 }
 
 
 void Painter::setMakingMask(bool making) {
   _makingMask = making;
 }
 
 
 int Painter::lineWidthAdjustmentFactor() const {
   int factor = 1;
   
   if (type() == P_PRINT || type() == P_EXPORT) {
     const QRect& w(window());
     
     //
     // we want a line width of 1 to give a width of approximately 1 pt (where 1 pt = 1/72 
     //  inch) when printing on letter sized paper. Assuming a margin of 0.25 inch in one 
     //  direction (on both sides) and 0.5 inch in the other direction (again on both sides)
     //  and a printer resolution of 600 dpi:
     //
     //  w.width() + w.height() = ( 8 + 11 - ( 2 * 0.5 ) - ( 2 * 0.25 ) ) * 600 = 10500
     //
     //  we want a scale factor of 600/72 = 8.333 in the line width, so our magic number simply 
     //  becomes:
     //
     //  w.width() + w.height() / scale factor = 10200 / 8.333 ~ 1300
     //
     
     factor = (w.width() + w.height()) / 1300;
   }
   
   return factor > 0 ? factor : 1;
 }
 
 }
 // vim: ts=2 sw=2 et