src/graphics/Gauge.cpp

   1 /*
   2  * Gauge.cpp
   3  *
   4  *  Created on: Aug 7, 2012
   5  *      Author: holy
   6  */
   7
   8 #include "Gauge.h"
   9
  10 #include "../loader/TypeDescription.h"
  11
  12 using geometry::Vector;
  13 using loader::FieldDescription;
  14 using loader::TypeDescription;
  15
  16 namespace graphics {
  17
  18 void Gauge::Draw(SDL_Surface *dest, const Vector<int> &position, int width, Uint8 fill) const {
  19         SDL_Rect srcRect, destRect;
  20
  21         int filledWidth = fill * (width - startWidth - endWidth) / 255;
  22         int emptyWidth = (255 - fill) * (width - startWidth - endWidth) / 255;
  23
  24         if (!surface) {
  25                 destRect.x = position.X();
  26                 destRect.y = position.Y();
  27                 destRect.w = filledWidth + startWidth;
  28                 destRect.h = height;
  29                 SDL_FillRect(dest, &destRect, SDL_MapRGB(dest->format, 0x00, 0xFF, 0x00));
  30                 destRect.x += destRect.w;
  31                 destRect.w = emptyWidth + endWidth;
  32                 SDL_FillRect(dest, &destRect, SDL_MapRGB(dest->format, 0xFF, 0x00, 0x00));
  33                 return;
  34         }
  35
  36         // start
  37         srcRect.w = startWidth;
  38         srcRect.h = height;
  39         destRect.x = position.X();
  40         destRect.y = position.Y();
  41         // full part
  42         if (fill == 0) {
  43                 srcRect.x = emptyOffset.X();
  44                 srcRect.y = emptyOffset.Y();
  45                 SDL_BlitSurface(surface, &srcRect, dest, &destRect);
  46         } else {
  47                 srcRect.x = fullOffset.X();
  48                 srcRect.y = fullOffset.Y();
  49                 SDL_BlitSurface(surface, &srcRect, dest, &destRect);
  50         }
  51
  52         destRect.x = position.X() + startWidth;
  53
  54         // fill
  55         srcRect.x = fullOffset.X() + startWidth;
  56         srcRect.y = fullOffset.Y();
  57         srcRect.w = repeatWidth;
  58         while (filledWidth > repeatWidth) {
  59                 SDL_BlitSurface(surface, &srcRect, dest, &destRect);
  60                 destRect.x += repeatWidth;
  61                 filledWidth -= repeatWidth;
  62         }
  63         srcRect.x = emptyOffset.X() + startWidth;
  64         srcRect.y = emptyOffset.Y();
  65         while (emptyWidth > repeatWidth) {
  66                 SDL_BlitSurface(surface, &srcRect, dest, &destRect);
  67                 destRect.x += repeatWidth;
  68                 emptyWidth -= repeatWidth;
  69         }
  70
  71         // end
  72         srcRect.w = endWidth;
  73         if (fill == 255) {
  74                 srcRect.x = fullOffset.X() + startWidth + repeatWidth;
  75                 srcRect.y = fullOffset.Y();
  76                 SDL_BlitSurface(surface, &srcRect, dest, &destRect);
  77         } else {
  78                 srcRect.x = emptyOffset.X() + startWidth + repeatWidth;
  79                 srcRect.y = emptyOffset.Y();
  80                 SDL_BlitSurface(surface, &srcRect, dest, &destRect);
  81         }
  82
  83 }
  84
  85
  86 void Gauge::CreateTypeDescription() {
  87         Gauge g;
  88
  89         int imageId(TypeDescription::GetTypeId("Image"));
  90         int numberId(TypeDescription::GetTypeId("Number"));
  91         int vectorId(TypeDescription::GetTypeId("Vector"));
  92
  93         TypeDescription &td(TypeDescription::CreateOrGet("Gauge"));
  94         td.SetConstructor(&Construct);
  95         td.SetSize(sizeof(Gauge));
  96
  97         td.AddField("image", FieldDescription(((char *)&g.surface) - ((char *)&g), imageId, true));
  98         td.AddField("full", FieldDescription(((char *)&g.fullOffset) - ((char *)&g), vectorId, false));
  99         td.AddField("empty", FieldDescription(((char *)&g.emptyOffset) - ((char *)&g), vectorId, false));
 100         td.AddField("height", FieldDescription(((char *)&g.height) - ((char *)&g), numberId, false));
 101         td.AddField("start", FieldDescription(((char *)&g.startWidth) - ((char *)&g), numberId, false));
 102         td.AddField("repeat", FieldDescription(((char *)&g.repeatWidth) - ((char *)&g), numberId, false));
 103         td.AddField("end", FieldDescription(((char *)&g.endWidth) - ((char *)&g), numberId, false));
 104 }
 105
 106 void Gauge::Construct(void *data) {
 107         new (data) Gauge;
 108 }
 109
 110 }