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widget.cpp
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widget.cpp
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#include "r-tech1/graphics/bitmap.h"
#include "r-tech1/funcs.h"
#include "r-tech1/gui/widget.h"
#include <math.h>
#include "r-tech1/token.h"
#include "r-tech1/gui/coordinate.h"
#include "r-tech1/exceptions/load_exception.h"
#include <sstream>
using namespace Gui;
static void round_double (double dbl_to_round , int &rounded_num) {
rounded_num = static_cast<int>(dbl_to_round);
if ((dbl_to_round - static_cast<double>(rounded_num)) >= 0.5) {rounded_num++;}
}
ColorInfo::ColorInfo():
body(Graphics::makeColor(0, 0, 0)),
/* alpha 0 is invisible, 255 is opaque. set something in the middle as default */
bodyAlpha(128),
border(Graphics::makeColor(0, 0, 0)),
borderAlpha(128){
}
Transformations::Transformations():
radius(0){
}
Transformations::Transformations(const Transformations & transforms):
radius(transforms.radius){
}
Transformations::~Transformations(){
}
Transformations & Transformations::operator=(const Transformations & transforms){
this->radius = transforms.radius;
return *this;
}
Widget::Widget(){
// Nothing yet
}
Widget::Widget( const Widget & w ){
this->location = w.location;
this->transforms = w.transforms;
}
Widget::~Widget(){
}
// copy
Widget &Widget::operator=( const Widget &copy){
this->location = copy.location;
this->transforms = copy.transforms;
return *this;
}
void Widget::setCoordinates(const Token * token){
if ( *token == "position" ){
int x, y, width, height;
token->view() >> x >> y >> width >> height;
AbsolutePoint pos(x, y);
AbsolutePoint dimensions(x + width, y + height);
location.setPosition(pos);
location.setPosition2(dimensions);
} else if ( *token == "relative-position" ){
double x1, y1, x2, y2;
token->view() >> x1 >> y1 >> x2 >> y2;
RelativePoint pos(x1,y1);
RelativePoint dimensions(x2,y2);
location = Coordinate(pos, dimensions);
} else if ( *token == "coordinate" ){
TokenView view = token->view();
while (view.hasMore()){
const Token * coordToken;
view >> coordToken;
if (*coordToken == "absolute"){
int x, y, width, height;
coordToken->view() >> x >> y >> width >> height;
AbsolutePoint pos(x, y);
AbsolutePoint dimensions(x + width, y + height);
location = Coordinate(pos, dimensions);
} else if (*coordToken == "relative"){
double x1, y1, x2, y2;
coordToken->view() >> x1 >> y1 >> x2 >> y2;
RelativePoint pos(x1,y1);
RelativePoint dimensions(x2,y2);
location = Coordinate(pos, dimensions);
} else if (*coordToken == "z"){
double z;
coordToken->view() >> z;
location.setZ(z);
}
}
}
if (location.getWidth() < 0 || location.getHeight() < 0){
std::ostringstream out;
out << "Invalid location dimension (cannot have a negative size). Width " << location.getWidth() << " Height " << location.getHeight() << ". From token: ";
token->toString(out, "");
throw LoadException(__FILE__, __LINE__, out.str());
}
}
void Widget::setColors(const Token * token){
if ( *token == "position-body" ) {
// This handles the body color of the widget
int r,g,b;
token->view() >> r >> g >> b >> colors.bodyAlpha;
colors.body = Graphics::makeColor(r,g,b);
} else if ( *token == "position-border" ) {
// This handles the border color of the widget
int r,g,b;
token->view() >> r >> g >> b >> colors.borderAlpha;
colors.border = Graphics::makeColor(r,g,b);
}
}
void Widget::setTransforms(const Token * token){
try{
if ( *token != "transforms" ){
throw LoadException(__FILE__, __LINE__, "Not a Widget Transforms.");
}
TokenView view = token->view();
while (view.hasMore()){
const Token * tok;
view >> tok;
double radius = 0;
try{
if (tok->match("radius", radius)){
transforms.setRadius(radius);
} else {
Global::debug(0) << "Unknown Transforms property: " << tok->getName() << std::endl;
}
} catch (const TokenException & ex){
throw LoadException(__FILE__, __LINE__, ex, "Transforms parse error");
} catch ( const LoadException & ex ) {
throw ex;
}
}
} catch (const TokenException & e){
throw LoadException(__FILE__, __LINE__, e, "Error reading transforms.");
}
}
void Widget::render(const Graphics::Bitmap & bitmap, const Font & font){
render(bitmap);
}
void Widget::drawBox(int radius, int x1, int y1, int x2, int y2, const Gui::ColorInfo & colors, const Graphics::Bitmap & work){
// rounded body?
if (radius > 0){
if (colors.bodyAlpha < 255){
Graphics::Bitmap::transBlender(0,0,0,colors.bodyAlpha);
work.translucent().roundRectFill(radius, x1, y1, x2, y2, colors.body);
Graphics::Bitmap::transBlender(0,0,0,colors.borderAlpha);
work.translucent().roundRect(radius, x1, y1, x2-1, y2-1, colors.border);
} else {
work.roundRectFill(radius, x1, y1, x2, y2, colors.body);
work.roundRect(radius, x1, y1, x2-1, y2-1, colors.border);
}
} else {
if (colors.bodyAlpha < 255){
Graphics::Bitmap::transBlender(0,0,0,colors.bodyAlpha);
work.translucent().rectangleFill(x1, y1, x2, y2, colors.body );
Graphics::Bitmap::transBlender(0,0,0,colors.borderAlpha);
work.translucent().vLine(y1,x1,y2-1,colors.border);
work.translucent().hLine(x1,y2-1,x2,colors.border);
work.translucent().vLine(y1,x2-1,y2-1,colors.border);
} else {
work.rectangleFill(x1, y1, x2, y2, colors.body );
work.vLine(y1,x1,y2-1,colors.border);
work.hLine(x1,y2-1,x2,colors.border);
work.vLine(y1,x2-1,y2-1,colors.border);
}
}
}
Util::ReferenceCount<Graphics::Bitmap> Widget::checkWorkArea(const Graphics::Bitmap & parent){
if (location.getWidth() <= 0 || location.getHeight() <= 0){
return Util::ReferenceCount<Graphics::Bitmap>(NULL);
}
return Util::ReferenceCount<Graphics::Bitmap>(new Graphics::Bitmap(parent, location.getX(), location.getY(), location.getWidth(), location.getHeight()));
}

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