Label.cpp

00001 //-----------------------------------------------------------
00002 //  Label class
00003 //
00004 //  2016/04/24, Copyright (c) 2016 MIKAMI, Naoki
00005 //-----------------------------------------------------------
00006 
00007 #include "Label.hpp"
00008 
00009 namespace Mikami
00010 {
00011     // Constructor
00012     Label::Label(uint16_t x, uint16_t y,
00013                  const string str, TextAlignMode mode, sFONT &fonts,
00014                  uint32_t textColor, uint32_t backColor)
00015         : GuiBase(x, y, fonts, textColor, backColor),
00016           MODE_(mode), STR_(str)
00017     {
00018         length_ = str.length();
00019         lcd_.SetBackColor(backColor);
00020         lcd_.SetTextColor(textColor);
00021         lcd_.SetFont(&fonts);
00022         DrawString(PosX(x), y, str);
00023     }
00024 
00025     void Label::Draw(const string str, uint32_t textColor)
00026     {
00027         // Erase previously-drawn string
00028         lcd_.SetTextColor(BACK_COLOR_);
00029         length_ = (length_ > str.length()) ? length_ : str.length();
00030         lcd_.FillRect(PosX(X_), Y_, FONTS_->Width*length_+1, FONTS_->Height);
00031 
00032         // Draw new string
00033         length_ = str.length();
00034         lcd_.SetFont(FONTS_);
00035         lcd_.SetTextColor(textColor);
00036         DrawString(PosX(X_), Y_, str);
00037     }
00038 
00039     uint16_t Label::PosX(uint16_t x)
00040     {
00041         if (MODE_ == LEFT) return x;
00042         else
00043         {
00044             if (MODE_ == CENTER)
00045                 return x - length_*FONTS_->Width/2;
00046             else
00047                 return x - length_*FONTS_->Width;
00048         }
00049     }
00050 }