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/*
* Copyright (C) 2008 Emweb bvba, Kessel-Lo, Belgium.
*
* See the LICENSE file for terms of use.
*/
#include <Wt/WApplication>
#include <Wt/WBreak>
#include <Wt/WPushButton>
#include <Wt/WTable>
#include <Wt/WTableCell>
#include <Wt/WText>
#include <boost/lexical_cast.hpp>
#include "MandelbrotExample.h"
#include "MandelbrotImage.h"
MandelbrotExample::MandelbrotExample(WContainerWidget *parent)
: WContainerWidget(parent)
{
new WText("<div style=\"height:1px; width: 1px;\"/>"
"<h2>Wt Mandelbrot example</h2>"
"<p>The image below is a WVirtualImage that renders the "
"classic Mandelbrot fractal.</p>"
"<p>It is drawn as a grid of many smaller images, "
"computed on the fly, as you scroll around "
"through the virtual image. You can scroll the image using the "
"buttons, or by dragging the mouse.</p>", this);
WTable *layout = new WTable(this);
mandelbrot_ = new MandelbrotImage(400, 400,
3000, 3000,
-2,
-1.5,
1,
1.5, layout->elementAt(0, 0));
WContainerWidget *buttons = new WContainerWidget(layout->elementAt(0, 0));
buttons->resize(400, WLength::Auto);
buttons->setContentAlignment(AlignCenter);
(new WPushButton("Left", buttons))
->clicked().connect(SLOT(this, MandelbrotExample::moveLeft));
(new WPushButton("Right", buttons))
->clicked().connect(SLOT(this, MandelbrotExample::moveRight));
(new WPushButton("Up", buttons))
->clicked().connect(SLOT(this, MandelbrotExample::moveUp));
(new WPushButton("Down", buttons))
->clicked().connect(SLOT(this, MandelbrotExample::moveDown));
new WBreak(buttons);
(new WPushButton("Zoom in", buttons))
->clicked().connect(SLOT(this, MandelbrotExample::zoomIn));
(new WPushButton("Zoom out", buttons))
->clicked().connect(SLOT(this, MandelbrotExample::zoomOut));
viewPortText_ = new WText(layout->elementAt(0, 1));
layout->elementAt(0, 1)->setPadding(10);
updateViewPortText();
mandelbrot_->viewPortChanged()
.connect(SLOT(this, MandelbrotExample::updateViewPortText));
}
void MandelbrotExample::moveLeft()
{
mandelbrot_->scroll(-50, 0);
}
void MandelbrotExample::moveRight()
{
mandelbrot_->scroll(50, 0);
}
void MandelbrotExample::moveUp()
{
mandelbrot_->scroll(0, -50);
}
void MandelbrotExample::moveDown()
{
mandelbrot_->scroll(0, 50);
}
void MandelbrotExample::zoomIn()
{
mandelbrot_->zoomIn();
}
void MandelbrotExample::zoomOut()
{
mandelbrot_->zoomOut();
}
void MandelbrotExample::updateViewPortText()
{
viewPortText_->setText
("Current viewport: ("
+ boost::lexical_cast<std::string>(mandelbrot_->currentX1()) + ","
+ boost::lexical_cast<std::string>(mandelbrot_->currentY1()) + ") to ("
+ boost::lexical_cast<std::string>(mandelbrot_->currentX2()) + ","
+ boost::lexical_cast<std::string>(mandelbrot_->currentY2()) + ")");
}
WApplication *createApplication(const WEnvironment& env)
{
WApplication *app = new WApplication(env);
app->setTitle("Wt Mandelbrot example");
MandelbrotExample *mandelbrot = new MandelbrotExample();
mandelbrot->setPadding(8);
app->root()->addWidget(mandelbrot);
app->styleSheet().addRule("html, body",
"border: 0px; margin: 0px; height: 100%;");
return app;
}
int main(int argc, char **argv)
{
return WRun(argc, argv, &createApplication);
}
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