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 <QtCore/QTime>
  22 #include <QtGui/QGraphicsScene>
  23 #include <QtGui/QGraphicsTextItem>
  24 #include "textelement.h"
  25 #include "reader.h"
  26 #include "odometer.h"
  27 #include "graphicsscene.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", "TIME"};
  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     specialFields_.clear();
 136
 137     for(int i = 0; i < FIELD_COUNT; i++)
 138     {
 139         if(data_.indexOf("{" + FIELDS[i] + "}") != -1)
 140         {
 141             specialFields_.push_back(static_cast<Field>(i));
 142         }
 143     }
 144
 145     QString replaced = data_;
 146     replaceSpecialFields(replaced);
 147     updateHtml(replaced);
 148
 149     scene->addItem(element_);
 150 }
 151
 152 void TextElement::update()
 153 {
 154     if(specialFields_.isEmpty())
 155     {
 156         return;
 157     }
 158
 159     QString replaced = data_;
 160     replaceSpecialFields(replaced);
 161
 162     updateHtml(replaced);
 163 }
 164
 165 void TextElement::updateHtml(QString const& data)
 166 {
 167     element_->setHtml("<div align='"+align_+"'>"+data+"</div>");
 168 }
 169
 170 void TextElement::replaceSpecialFields(QString& value)
 171 {
 172     for(int i = 0; i < specialFields_.size(); i++)
 173     {
 174         Field f = specialFields_.at(i);
 175         Odometer* o = &(Odometer::instance());
 176
 177         switch(f)
 178         {
 179         case TRIP:
 180             replaceValue(value, f, formatString(o->getTrip()));
 181             break;
 182         case TOTAL:
 183             replaceValue(value, f, formatString(o->getTotal()));
 184             break;
 185         case SPEED:
 186             replaceValue(value, f, formatString(o->getLatestFix().speed));
 187             break;
 188         case MAXSPEED:
 189             replaceValue(value, f, formatString(o->getMaxSpeed()));
 190             break;
 191         case AVGSPEED:
 192             replaceValue(value, f, formatString(o->getAverageSpeed()));
 193             break;
 194         case UNIT:
 195             replaceValue(value, f, o->getUnit());
 196             break;
 197         case SPEEDUNIT:
 198             replaceValue(value, f, o->getSpeedUnit());
 199             break;
 200         case TIME:
 201             replaceValue(value, f, QTime::currentTime().toString("hh:mm"));
 202             break;
 203         default:
 204             qDebug() << "Unknown field: " << f;
 205         }
 206     }
 207 }
 208
 209 void TextElement::replaceValue(QString& value,
 210                                TextElement::Field field,
 211                                QString const& replace)
 212 {
 213     value = value.replace("{" + FIELDS[field] + "}", replace);
 214 }
 215
 216 QString TextElement::formatString(double val)
 217 {
 218     QString format = format_;
 219
 220     if(format.isEmpty())
 221     {
 222         format = "%.1lf";
 223     }
 224
 225     QString result;
 226     result.sprintf(format.toLatin1().data(), val);
 227
 228     return result;
 229 }
 230
 231
 232 QGraphicsItem* TextElement::getElement() const
 233 {
 234     return element_;
 235 }