kblackbox/kbbgraphicsitemrayresult.cpp

   1 //
   2 // KBlackBox
   3 //
   4 // A simple game inspired by an emacs module
   5 //
   6 /***************************************************************************
   7  *   Copyright (c) 1999-2000, Robert Cimrman                               *
   8  *   cimrman3@students.zcu.cz                                              *
   9  *                                                                         *
  10  *   Copyright (c) 2007, Nicolas Roffet                                    *
  11  *   nicolas-kde@roffet.com                                                *
  12  *                                                                         *
  13  *                                                                         *
  14  *   This program is free software; you can redistribute it and/or modify  *
  15  *   it under the terms of the GNU General Public License as published by  *
  16  *   the Free Software Foundation; either version 2 of the License, or     *
  17  *   (at your option) any later version.                                   *
  18  *                                                                         *
  19  *   This program is distributed in the hope that it will be useful,       *
  20  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  21  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  22  *   GNU General Public License for more details.                          *
  23  *                                                                         *
  24  *   You should have received a copy of the GNU General Public License     *
  25  *   along with this program; if not, write to the                         *
  26  *   Free Software Foundation, Inc.,                                       *
  27  *   51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA               *
  28  ***************************************************************************/
  29
  30 #include "kbbgraphicsitemrayresult.h"
  31
  32
  33
  34 #include <QFont>
  35 #include <QGraphicsScene>
  36
  37
  38 #include "kbbgraphicsitem.h"
  39 #include "kbbgraphicsitemborder.h"
  40 #include "kbbitemwithposition.h"
  41 #include "kbbscalablegraphicwidget.h"
  42 #include "kbbthememanager.h"
  43
  44
  45
  46 //
  47 // Constructor / Destructor
  48 //
  49
  50 KBBGraphicsItemRayResult::KBBGraphicsItemRayResult( KBBScalableGraphicWidget* parent, KBBThemeManager* themeManager, QGraphicsScene* scene, const int borderPosition, const int columns, const int rows, const int rayNumber) : KBBGraphicsItemBorder( borderPosition, columns, rows, KBBScalableGraphicWidget::BORDER_SIZE/2), KBBGraphicsItem(KBBScalableGraphicWidget::resultBackground, scene, themeManager), KBBItemWithPosition()
  51 {
  52         m_widget = parent;
  53         m_scene = scene;
  54         m_elementIdResultBackground = themeManager->elementId(KBBScalableGraphicWidget::resultBackground);
  55         m_elementIdResultBackgroundHighlight = themeManager->elementId(KBBScalableGraphicWidget::resultBackgroundHighlight);
  56         m_number = NULL;
  57         m_notNumber = NULL;
  58         m_pause = false;
  59
  60         float centerRadius = 3*KBBScalableGraphicWidget::RATIO/8.;
  61         float radius = KBBScalableGraphicWidget::BORDER_SIZE/4.;
  62
  63         m_opposite = this;
  64
  65         setPos(m_centerX - radius, m_centerY - radius);
  66
  67         if(rayNumber<=0) {
  68
  69                 if (rayNumber==0)
  70                         m_notNumber = new KBBGraphicsItem(KBBScalableGraphicWidget::resultReflection, m_scene, themeManager);
  71                 else
  72                         m_notNumber = new KBBGraphicsItem(KBBScalableGraphicWidget::resultHit, m_scene, themeManager);
  73                 m_notNumber->translate(radius,radius);
  74                 m_notNumber->rotate(rotation());
  75                 m_notNumber->translate(-radius,-radius);
  76                 m_notNumber->setPos(m_centerX - radius, m_centerY - radius);
  77         } else {
  78                 QString text;
  79                 text.setNum(rayNumber);
  80
  81                 m_number = new QGraphicsSimpleTextItem ( text, this, scene);
  82                 QFont font;
  83                 font.setStyleHint(QFont::SansSerif);
  84                 font.setWeight(QFont::DemiBold);
  85                 float offset;
  86                 if (rayNumber<10) {
  87                         font.setPixelSize((int)(3*centerRadius/2));
  88                         offset = 0.;
  89                 } else {
  90                         font.setPixelSize((int)(5*centerRadius/4));
  91                         offset = 1.*centerRadius/6;
  92                 }
  93                 m_number->setFont(font);
  94                 m_number->setPos(radius - centerRadius/2 - 2*offset, radius - centerRadius + offset);
  95                 m_number->setZValue(themeManager->zValue(KBBScalableGraphicWidget::resultText));
  96         }
  97         setAcceptsHoverEvents(true);
  98 }
  99
 100
 101
 102 //
 103 // Public
 104 //
 105
 106 void KBBGraphicsItemRayResult::cleanDelete()
 107 {
 108         delete m_notNumber;
 109         delete m_number;
 110         delete this;
 111 }
 112
 113
 114 void KBBGraphicsItemRayResult::highlight(bool state)
 115 {
 116         if (state && !m_pause)
 117                 setElementId(m_elementIdResultBackgroundHighlight);
 118         else
 119                 setElementId(m_elementIdResultBackground);
 120 }
 121
 122
 123 void KBBGraphicsItemRayResult::highlightBoth(bool state)
 124 {
 125         m_opposite->highlight(state);
 126         highlight(state);
 127 }
 128
 129
 130 int KBBGraphicsItemRayResult::position ()
 131 {
 132         return m_borderPosition;
 133 }
 134
 135
 136 void KBBGraphicsItemRayResult::setOpposite(KBBGraphicsItemRayResult* opposite)
 137 {
 138         m_opposite = opposite;
 139 }
 140
 141
 142 void KBBGraphicsItemRayResult::setPause(bool state)
 143 {
 144         if (m_number!=NULL)
 145                 m_number->setVisible(!state);
 146         if (m_notNumber!=NULL)
 147                 m_notNumber->setVisible(!state);
 148
 149         m_pause = state;
 150 }
 151
 152
 153
 154 //
 155 // Private
 156 //
 157
 158 void KBBGraphicsItemRayResult::hoverEnterEvent (QGraphicsSceneHoverEvent*)
 159 {
 160         highlightBoth(true);
 161         m_widget->drawRay(position());
 162 }
 163
 164
 165 void KBBGraphicsItemRayResult::hoverLeaveEvent (QGraphicsSceneHoverEvent*)
 166 {
 167         highlightBoth(false);
 168         m_widget->removeRay();
 169 }