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fadetool.cpp
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fadetool.cpp
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#include "r-tech1/gui/fadetool.h"
#include "r-tech1/graphics/bitmap.h"
#include "r-tech1/token.h"
#include "r-tech1/exceptions/load_exception.h"
#include "r-tech1/debug.h"
using namespace Gui;
FadeTool::FadeTool():
currentState(FadeIn),
lastState(FadeIn),
fadeTime(255),
fadeInTime(0),
fadeOutTime(0),
fadeInColor(Graphics::makeColor(0,0,0)),
fadeOutColor(Graphics::makeColor(0,0,0)){
}
FadeTool::~FadeTool(){
}
void FadeTool::parseDefaults(const Token * token){
if ( *token != "fade" ){
throw LoadException(__FILE__, __LINE__, "Not a fader");
}
/*!
* (fade
(in (color 0 0 0) (time 0) )
(out (color 0 0 0) (time 0) ))
*/
const Token & ourToken = *token;
TokenView view = ourToken.view();
while (view.hasMore()){
try{
const Token * tok;
view >> tok;
if (*tok == "in"){
readFade(tok, FadeIn);
} else if (*tok == "out"){
readFade(tok, FadeOut);
}
} catch ( const TokenException & ex ) {
throw LoadException(__FILE__, __LINE__, ex, "Fade tool parse error");
} catch ( const LoadException & ex ) {
throw ex;
}
}
}
void FadeTool::setState( const State & f){
lastState = currentState;
currentState = f;
switch (currentState){
case FadeIn:
fadeTime = 255;
break;
case FadeOut:
fadeTime = 0;
break;
case NoFade:
case EndFade:
default:
fadeTime = 0;
break;
}
}
void FadeTool::act(){
switch (currentState){
case FadeIn:
fadeTime -= (255/(fadeInTime <= 0 ? 1 : fadeInTime));
if (fadeTime<=0){
setState(NoFade);
}
break;
case FadeOut:
fadeTime += (255/(fadeOutTime <= 0 ? 1 : fadeOutTime));
if (fadeTime>=255){
setState(EndFade);
}
break;
case NoFade:
case EndFade:
default:
break;
}
}
void FadeTool::draw(const Graphics::Bitmap &bmp){
switch (currentState){
case FadeIn:
Graphics::Bitmap::transBlender(0,0,0, fadeTime);
bmp.translucent().rectangleFill(0, 0, bmp.getWidth(), bmp.getHeight(), fadeInColor);
break;
case FadeOut:
Graphics::Bitmap::transBlender(0,0,0, fadeTime);
bmp.translucent().rectangleFill(0, 0, bmp.getWidth(), bmp.getHeight(), fadeOutColor);
break;
case NoFade:
case EndFade:
default:
break;
}
}
void FadeTool::readFade(const Token * token, const State & type){
TokenView view = token->view();
while (view.hasMore()){
try{
const Token * tok;
view >> tok;
if (*tok == "color"){
int red = 0, green = 0, blue = 0;
try {
tok->view() >> red >> green >> blue;
} catch (const TokenException & ex){
}
if (type == FadeIn){
setFadeInColor(Graphics::makeColor(red, green, blue));
} else if (type == FadeOut){
setFadeOutColor(Graphics::makeColor(red, green, blue));
}
} else if ( *tok == "time" ){
int time=0;
try {
tok->view() >> time;
} catch (const TokenException & ex){
}
if (type == FadeIn){
setFadeInTime(time);
} else if (type == FadeOut){
setFadeOutTime(time);
}
} else {
Global::debug(3) << "Unhandled FadeTool attribute: " << std::endl;
if (Global::getDebug() >= 3){
tok->print(" ");
}
}
} catch ( const TokenException & ex ) {
throw LoadException(__FILE__, __LINE__, ex, "FadeTool parse error");
} catch ( const LoadException & ex ) {
throw ex;
}
}
}

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