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Clock

 

Analogue / digital clock

Description

The example shows U++ implementation of analog/digital clock.

Result

 

 

main.cpp

 

#include <CtrlLib/CtrlLib.h>

 

using namespace Upp;

 

struct App : TopWindow {

    void PaintPtr(Draw& w, double pos, double m, int d, Color color, Size sz2)

    {

        w.DrawLine(sz2.cx, sz2.cy,

                   sz2.cx + int(m * sin(pos * 2 * M_PI) * sz2.cx),

                   sz2.cy - int(m * cos(pos * 2 * M_PI) * sz2.cy),

                   d, color);

    }

 

    void PaintCenteredText(Draw& w, int x, int y, const char *text, Font fnt, Color c)

    {

        Size tsz = GetTextSize(text, fnt);

        w.DrawText(x - tsz.cx / 2, y - tsz.cy / 2, text, fnt, c);

    }

 

    virtual void Paint(Draw& w)

    {

        Size sz = GetSize();

        w.DrawRect(sz, SLtGray);

        sz -= 6;

        w.Offset(3, 3);

        Size sz2 = sz / 2;

        w.DrawEllipse(0, 0, sz.cx, sz.cy, SWhite, 3, SBlack);

        Font fnt = Arial(min(sz.cx, sz.cy) / 10);

        for(int i = 1; i <= 12; i++) {

            int d = i % 3 == 0 ? 3 : 2;

            PaintCenteredText(w, sz2.cx + int(0.8 * sin(i * M_PI / 6) * sz2.cx),

                              sz2.cy - int(0.8 * cos(i * M_PI / 6) * sz2.cy),

                              AsString(i), i % 3 ? fnt : fnt().Bold(), SBlack);

        }

        Date date = GetSysDate();

        PaintCenteredText(w, sz.cx / 2, 3 * sz.cy / 5, GetLanguageInfo().FormatDate(date),

                          fnt().Bold(), SLtBlue);

        double tm = double(GetSysTime() - ToTime(date));

        PaintPtr(w, tm / 60, 0.75, 1, SRed, sz2);

        PaintPtr(w, tm / 3600, 0.6, 2, SCyan, sz2);

        PaintPtr(w, tm / 3600 / 12, 0.5, 4, SBlack, sz2);

        w.End();

    }

 

    void Timer()

    {

        Refresh();

    }

 

    App()

    {

        SetRect(0, 0, 150, 150);

        Sizeable().Zoomable();

        BackPaint();

        SetTimeCallback(-1000, callback(this, &App::Timer));

        Title("Clock");

    }

};

 

GUI_APP_MAIN

{

    App().Run();

}

 

 

 

 

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