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 "textelement.h"
  24 #include "reader.h"
  25 #include "odometer.h"
  26 #include "graphicsscene.h"
  27
  28 namespace
  29 {
  30     const GraphicsElement::AttributeDetails ATTRIBUTES[TextElement::ATTRIBUTE_COUNT] =
  31     {
  32      {"xpos", true},
  33      {"ypos", true},
  34      {"data", false},
  35      {"format", false},
  36      {"width", true},
  37      {"align", false},
  38      {"color", false},
  39      {"size", true},
  40      {"font", false}
  41     };
  42
  43     const QString FIELDS[TextElement::FIELD_COUNT] =  {"TRIP", "TOTAL", "SPEED",
  44                                                        "MAXSPEED", "AVGSPEED",
  45                                                        "UNIT", "SPEEDUNIT"};
  46 }
  47
  48 TextElement::TextElement(Reader* reader): GraphicsElement(reader),
  49 data_(""), format_(""), align_("left"), fontSize_(16)
  50 {
  51     element_ = new QGraphicsTextItem();
  52 }
  53
  54 bool TextElement::setAttribute(QString const& name, QString const& value)
  55 {
  56     int intVal = 0;
  57     int attrId = -1;
  58
  59     if((attrId = getAttribute(name, value, ATTRIBUTES, ATTRIBUTE_COUNT, intVal)) != -1)
  60     {
  61         Attribute attr = static_cast<Attribute>(attrId);
  62
  63         bool fontChanged = false;
  64
  65         switch(attr)
  66         {
  67         case XPOS:
  68             element_->setX(intVal);
  69             break;
  70         case YPOS:
  71             element_->setY(intVal);
  72             break;
  73         case DATA:
  74             data_ = value;
  75             break;
  76         case FORMAT:
  77             format_ = value;
  78             break;
  79         case WIDTH:
  80             element_->setTextWidth(intVal);
  81             break;
  82         case ALIGN:
  83             align_ = value;
  84             break;
  85         case COLOR:
  86             element_->setDefaultTextColor(QColor(value));
  87             break;
  88         case SIZE:
  89             fontSize_ = intVal;
  90             fontChanged = true;
  91             break;
  92         case FONT:
  93             fontFile_ = value;
  94             fontChanged = true;
  95             break;
  96         default:
  97             qDebug() << "Unknown attribute: " << attr;
  98             return false;
  99         }
 100
 101         if(fontChanged)
 102         {
 103             if(!fontFile_.isEmpty())
 104             {
 105                 QFont font;
 106
 107                 if(getFont(fontFile_, font))
 108                 {
 109                     font.setPointSize(fontSize_);
 110                     element_->setFont(font);
 111                 }
 112                 else
 113                 {
 114                     return false;
 115                 }
 116             }
 117             else
 118             {
 119                 element_->setFont(QFont("Default", fontSize_));
 120             }
 121         }
 122
 123         return true;
 124
 125     }
 126     else
 127     {
 128         return false;
 129     }
 130 }
 131
 132 void TextElement::addToScene(GraphicsScene* scene)
 133 {
 134     specialFields_.clear();
 135
 136     for(int i = 0; i < FIELD_COUNT; i++)
 137     {
 138         if(data_.indexOf("{" + FIELDS[i] + "}") != -1)
 139         {
 140             specialFields_.push_back(static_cast<Field>(i));
 141         }
 142     }
 143
 144     QString replaced = data_;
 145     replaceSpecialFields(replaced);
 146     updateHtml(replaced);
 147
 148     scene->addItem(element_);
 149 }
 150
 151 void TextElement::update()
 152 {
 153     if(specialFields_.isEmpty())
 154     {
 155         return;
 156     }
 157
 158     QString replaced = data_;
 159     replaceSpecialFields(replaced);
 160
 161     updateHtml(replaced);
 162 }
 163
 164 void TextElement::updateHtml(QString const& data)
 165 {
 166     element_->setHtml("<div align='"+align_+"'>"+data+"</div>");
 167 }
 168
 169 void TextElement::replaceSpecialFields(QString& value)
 170 {
 171     for(int i = 0; i < specialFields_.size(); i++)
 172     {
 173         Field f = specialFields_.at(i);
 174         Odometer* o = &(Odometer::instance());
 175
 176         switch(f)
 177         {
 178         case TRIP:
 179             replaceValue(value, f, formatString(o->getTrip()));
 180             break;
 181         case TOTAL:
 182             replaceValue(value, f, formatString(o->getTotal()));
 183             break;
 184         case SPEED:
 185             replaceValue(value, f, formatString(o->getLatestFix().speed));
 186             break;
 187         case MAXSPEED:
 188             replaceValue(value, f, formatString(o->getMaxSpeed()));
 189             break;
 190         case AVGSPEED:
 191             replaceValue(value, f, formatString(o->getAverageSpeed()));
 192             break;
 193         case UNIT:
 194             replaceValue(value, f, o->getUnit());
 195             break;
 196         case SPEEDUNIT:
 197             replaceValue(value, f, o->getSpeedUnit());
 198             break;
 199         default:
 200             qDebug() << "Unknown field: " << f;
 201         }
 202     }
 203 }
 204
 205 void TextElement::replaceValue(QString& value,
 206                                TextElement::Field field,
 207                                QString const& replace)
 208 {
 209     value = value.replace("{" + FIELDS[field] + "}", replace);
 210 }
 211
 212 QString TextElement::formatString(double val)
 213 {
 214     QString format = format_;
 215
 216     if(format.isEmpty())
 217     {
 218         format = "%.1lf";
 219     }
 220
 221     QString result;
 222     result.sprintf(format.toLatin1().data(), val);
 223
 224     return result;
 225 }