git.maemo.org Git - jspeed/blob - src/textelement.cpp

   1 /*
   2  * This file is part of jSpeed.
   3  *
   4  * jSpeed is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * jSpeed is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with jSpeed.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 #include <QtCore/QString>
  20 #include <QtCore/QDebug>
  21 #include <QtGui/QGraphicsScene>
  22 #include <QtGui/QGraphicsTextItem>
  23 #include "reader.h"
  24 #include "textelement.h"
  25 #include "odometer.h"
  26 #include "graphicsscene.h"
  27 #include "location.h"
  28
  29 namespace
  30 {
  31     const GraphicsElement::AttributeDetails ATTRIBUTES[TextElement::ATTRIBUTE_COUNT] =
  32     {
  33      {"xpos", true},
  34      {"ypos", true},
  35      {"data", false},
  36      {"format", false},
  37      {"width", true},
  38      {"align", false},
  39      {"color", false},
  40      {"size", true},
  41      {"font", false}
  42     };
  43
  44     const QString FIELDS[TextElement::FIELD_COUNT] =  {"TRIP", "TOTAL", "SPEED",
  45                                                        "MAXSPEED", "AVGSPEED",
  46                                                        "UNIT", "SPEEDUNIT"};
  47 }
  48
  49 TextElement::TextElement(Reader* reader): GraphicsElement(reader),
  50 data_(""), format_(""), align_("left"), fontSize_(16)
  51 {
  52     element_ = new QGraphicsTextItem();
  53 }
  54
  55 bool TextElement::setAttribute(QString const& name, QString const& value)
  56 {
  57     int intVal = 0;
  58     int attrId = -1;
  59
  60     if((attrId = getAttribute(name, value, ATTRIBUTES, ATTRIBUTE_COUNT, intVal)) != -1)
  61     {
  62         Attribute attr = static_cast<Attribute>(attrId);
  63
  64         bool fontChanged = false;
  65
  66         switch(attr)
  67         {
  68         case XPOS:
  69             element_->setX(intVal);
  70             break;
  71         case YPOS:
  72             element_->setY(intVal);
  73             break;
  74         case DATA:
  75             data_ = value;
  76             break;
  77         case FORMAT:
  78             format_ = value;
  79             break;
  80         case WIDTH:
  81             element_->setTextWidth(intVal);
  82             break;
  83         case ALIGN:
  84             align_ = value;
  85             break;
  86         case COLOR:
  87             element_->setDefaultTextColor(QColor(value));
  88             break;
  89         case SIZE:
  90             fontSize_ = intVal;
  91             fontChanged = true;
  92             break;
  93         case FONT:
  94             fontFile_ = value;
  95             fontChanged = true;
  96             break;
  97         default:
  98             qDebug() << "Unknown attribute: " << attr;
  99             return false;
 100         }
 101
 102         if(fontChanged)
 103         {
 104             if(!fontFile_.isEmpty())
 105             {
 106                 QFont font;
 107
 108                 if(getFont(fontFile_, font))
 109                 {
 110                     font.setPointSize(fontSize_);
 111                     element_->setFont(font);
 112                 }
 113                 else
 114                 {
 115                     return false;
 116                 }
 117             }
 118             else
 119             {
 120                 element_->setFont(QFont("Default", fontSize_));
 121             }
 122         }
 123
 124         return true;
 125
 126     }
 127     else
 128     {
 129         return false;
 130     }
 131 }
 132
 133 void TextElement::addToScene(GraphicsScene* scene)
 134 {
 135     Location::Fix fix;
 136
 137     specialFields_.clear();
 138
 139     for(int i = 0; i < FIELD_COUNT; i++)
 140     {
 141         if(data_.indexOf("{" + FIELDS[i] + "}") != -1)
 142         {
 143             specialFields_.push_back(static_cast<Field>(i));
 144         }
 145     }
 146
 147     QString replaced = data_;
 148     replaceSpecialFields(replaced);
 149     updateHtml(replaced);
 150
 151     scene->addItem(element_);
 152 }
 153
 154 void TextElement::update()
 155 {
 156     if(specialFields_.isEmpty())
 157     {
 158         return;
 159     }
 160
 161     QString replaced = data_;
 162     replaceSpecialFields(replaced);
 163
 164     updateHtml(replaced);
 165 }
 166
 167 void TextElement::updateHtml(QString const& data)
 168 {
 169     element_->setHtml("<div align='"+align_+"'>"+data+"</div>");
 170 }
 171
 172 void TextElement::replaceSpecialFields(QString& value)
 173 {
 174     for(int i = 0; i < specialFields_.size(); i++)
 175     {
 176         Field f = specialFields_.at(i);
 177         Odometer* o = &(Odometer::instance());
 178
 179         switch(f)
 180         {
 181         case TRIP:
 182             replaceValue(value, f, formatString(o->getTrip()));
 183             break;
 184         case TOTAL:
 185             replaceValue(value, f, formatString(o->getTotal()));
 186             break;
 187         case SPEED:
 188             replaceValue(value, f, formatString(o->getLatestFix().speed));
 189             break;
 190         case MAXSPEED:
 191             replaceValue(value, f, formatString(o->getMaxSpeed()));
 192             break;
 193         case AVGSPEED:
 194             replaceValue(value, f, formatString(o->getAverageSpeed()));
 195             break;
 196         case UNIT:
 197             replaceValue(value, f, o->getUnit());
 198             break;
 199         case SPEEDUNIT:
 200             replaceValue(value, f, o->getSpeedUnit());
 201             break;
 202         default:
 203             qDebug() << "Unknown field: " << f;
 204         }
 205     }
 206 }
 207
 208 void TextElement::replaceValue(QString& value,
 209                                TextElement::Field field,
 210                                QString const& replace)
 211 {
 212     value = value.replace("{" + FIELDS[field] + "}", replace);
 213 }
 214
 215 QString TextElement::formatString(double val)
 216 {
 217     QString format = format_;
 218
 219     if(format.isEmpty())
 220     {
 221         format = "%.1lf";
 222     }
 223
 224     QString result;
 225     result.sprintf(format.toLatin1().data(), val);
 226
 227     return result;
 228 }