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messages.cpp
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messages.cpp
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#include "r-tech1/graphics/bitmap.h"
#include "r-tech1/messages.h"
#include "r-tech1/font.h"
using namespace std;
Messages::Messages( int width, int height, int opaque ):
width(width),
height(height),
opaque(opaque),
borderColor(Graphics::makeColor(200,200,200)){
}
static vector< string > wrapStrings( const string & left, const string & right, const Font & font, int max, vector< string > accum ){
if (left == ""){
return accum;
}
int length = font.textLength(left.c_str());
if (length >= max){
return wrapStrings(left.substr( 0, left.length() / 2 ), left.substr( left.length() / 2 ) + right, font, max, accum);
} else if (length >= max - font.textLength("E") || right == ""){
accum.push_back(left);
return wrapStrings(right, "", font, max, accum);
} else {
string newleft = left + right.substr(0, 1);
/* edge case where adding one character goes over the limit. in that
* case treat it as the 2nd case.
*/
if (font.textLength(newleft.c_str()) >= max - font.textLength("E")){
accum.push_back(left);
return wrapStrings(right, "", font, max, accum);
}
return wrapStrings(newleft, right.substr(1), font, max, accum);
}
}
/*
static int wrapPrint( const Bitmap & area, int y, int top, const Font & font, const string & left, const string & right ){
if ( left == "" ){
return top;
}
int length = font.textLength( left.c_str() );
int max = area.getWidth();
if ( length >= max ){
return wrapPrint( area, y - font.getHeight(), top - font.getHeight(), font, left.substr( 0, left.length() / 2 ), left.substr( left.length() / 2 ) + right );
} else if ( length >= max - font.textLength( "E" ) || right == "" ){
font.printf( 0, y, Bitmap::makeColor( 255, 255, 255 ), area, left, 0 );
return wrapPrint( area, y + font.getHeight(), top, font, right, "" );
} else {
return wrapPrint( area, y, top, font, left + right.substr( 0, 1 ), right.substr( 1 ) );
}
}
*/
void Messages::addMessage( const std::string & s ){
messages.push_back( s );
}
void Messages::draw( int x, int y, const Graphics::Bitmap & work, const Font & font ){
// work.drawingMode( Bitmap::MODE_TRANS );
Graphics::Bitmap::transBlender(0, 0, 0, this->opaque);
work.translucent().rectangleFill( x, y, x + width, y + height, Graphics::makeColor( 0, 0, 0 ) );
// work.drawingMode( Bitmap::MODE_SOLID );
// work.rectangle( x, y, x + width-1, y + height-1, Bitmap::makeColor( 255, 255, 255 ) );
work.border(0, 1, borderColor);
/* fast because its a sub-bitmap */
Graphics::Bitmap area(work, x, y, width, height);
int current_y = height - font.getHeight() - 1;
// int max_length = area.getWidth() / font.textLength( "E" );
for ( vector< string >::reverse_iterator it = messages.rbegin(); it != messages.rend(); it++ ){
if ( current_y < 0 - font.getHeight() ){
break;
}
const string & s = *it;
vector< string > all;
all = wrapStrings(s, "", font, area.getWidth() - 3, all);
current_y -= font.getHeight() * (all.size() - 1);
int my = current_y;
for ( vector< string >::iterator str = all.begin(); str != all.end(); str++ ){
font.printf(2, my, Graphics::makeColor( 255, 255, 255 ), area, *str, 0);
my += font.getHeight();
}
// current_y = wrapPrint( area, current_y, current_y, font, s, "" );
/*
int lines = font.textLength( s.c_str() ) / area.getWidth();
current_y -= font.getHeight() * lines;
int my = current_y;
while ( s != "" ){
string sub = s.substr( 0, max_length );
s.erase( 0, max_length );
font.printf( 0, my, Bitmap::makeColor( 255, 255, 255 ), area, sub, 0 );
my += font.getHeight();
}
*/
current_y -= font.getHeight();
}
}
Messages::~Messages(){
}

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