Converter
Converts metric units and U.S. units (meters / feets etc..)
Description
This example is inspired by Swing tutorial.
Result
main.cpp
#include <CtrlLib/CtrlLib.h>
using namespace Upp;
// http://www.ictp.trieste.it/~manuals/programming/Java/tutorial/uiswing/overview/anatomy.html
#define LAYOUTFILE <Converter/converter.lay>
#include <CtrlCore/lay.h>
struct ConverterPane : WithConverterPaneLayout<StaticRect> {
ConverterPane *other;
void Sync()
{
other->slider <<= other->value <<= (double)~unit * Nvl((double)~value) / (double)~other->unit;
}
ConverterPane()
{
CtrlLayout(*this);
slider.Range(10000);
slider <<= value <<= 0;
value << [=] { slider <<= ~value; Sync(); };
slider << [=] { value <<= ~slider; Sync(); };
unit << [=] { Sync(); };
}
};
struct Converter : TopWindow
{
ConverterPane metric, us;
typedef Converter CLASSNAME;
Converter()
{
Title("Converter");
Size sz = metric.GetLayoutSize();
SetRect(0, 0, metric.GetSize().cx, metric.GetSize().cy * 2);
Add(metric.HSizePos().TopPos(0, sz.cy));
Add(us.HSizePos().BottomPos(0, sz.cy));
metric.title = "Metric units";
metric.unit.Add(0.01, "Centimeters");
metric.unit.Add(1.0, "Meters");
metric.unit.Add(1000.0, "Kilometers");
metric.unit <<= 1.0;
us.title = "U.S. units";
us.unit.Add(0.0254, "Inches");
us.unit.Add(0.305, "Feet");
us.unit.Add(0.914, "Yards");
us.unit.Add(1613.0, "Miles");
us.unit <<= 0.305;
us.other = &metric;
metric.other = &us;
metric.Sync();
}
};
GUI_APP_MAIN
{
Converter().Run();
}
converter.lay
LAYOUT(ConverterPaneLayout, 280, 76)
ITEM(Upp::LabelBox, title, LeftPosZ(8, 268).TopPosZ(4, 64))
ITEM(Upp::EditDoubleSpin, value, LeftPosZ(16, 144).TopPosZ(20, 19))
ITEM(Upp::SliderCtrl, slider, LeftPosZ(16, 252).TopPosZ(40, 20))
ITEM(Upp::DropList, unit, LeftPosZ(164, 104).TopPosZ(20, 19))
END_LAYOUT
|
