User:Sascha

    CGfxWrapeGML* pkWrap = dynamic_cast<CGfxWrapeGML*>(&GETGFX);
    if (NULL != pkWrap)
    {
        eGML_Screen* pkScreen = pkWrap->GetScreen();
        unsigned short* memory = (unsigned short*)pkScreen->Lock();

        eC_UInt uiWidth = pkScreen->GetWidth();
        eC_UInt uiHeight = pkScreen->GetHeight();

        memset(memory, 0xf1, uiWidth * uiHeight);
        for (eC_UInt y = 0; y < uiHeight; ++y)
        {
            for (eC_UInt x = 0; x < uiWidth; ++x)
            {
                unsigned short val = memory[y * uiWidth + x];
                memory[y * uiWidth + x] = (val + (x * y)) & 0xffff;
            }
        }

        pkScreen->Unlock();

//        pkScreen->DrawLine(eGML_Vector2(0, 0), eGML_Vector2(10, 10), 0xff004400, 0, 1, 1);
    }

----------------

eC_Bool ExampleBehaviour::DoClick(
    const eC_Value &vAbsX,
    const eC_Value &vAbsY)
{
    if (
        (m_eContainer != NO_HANDLE) &&
        (m_eTargetObject != NO_HANDLE)
        )
    {
        CGUICompositeObject* pkContainer = dynamic_cast<CGUICompositeObject*>(GETGUI.GetObjectByID(m_eContainer));
        if (NULL != pkContainer)
        {
            for (eC_UInt uiChild = 0; uiChild < pkContainer->GetNumberOfChildren(); ++uiChild)
            {
                CGUIObject* pkCurrentChild = pkContainer->GetChild(uiChild);
                if (pkCurrentChild->GetID() == m_eTargetObject)
                    pkCurrentChild->SetInvisible(false);
                else
                    pkCurrentChild->SetInvisible(true);
            }
        }
    }
    return true;
}

----------------

eC_UInt CalcDayNumFromDate(eC_UInt y, eC_UByte m, eC_UByte d)
{
    m = (m + 9) % 12;
    y -= m / 10;
    eC_UInt dn = 365 * y + y / 4 - y / 100 + y / 400 + (m * 306 + 5) / 10 + (d - 1) + 3;

    return dn % 7;
}

------------------

/*
* Copyright (C) TES Electronic Solutions GmbH,
* All Rights Reserved.
* Contact: info@guiliani.de
*
* This file is part of the Guiliani HMI framework
* for the development of graphical user interfaces on embedded systems.
*/

#if !defined(EXAMPLE_CONTROL_H)
#define EXAMPLE_CONTROL_H

#include "GUIObject.h"

#include "GUIFontResource.h"
#include "GUIImageResource.h"
#include "GUINinePatch.h"

/** An example CGUIObject implementation that draws a rectangle with
    configureable border width and configurable colors.
  */
class ExampleControl : public CGUIObject
{
public:
    /** Constructor.
        @param pParent Pointer to the designated parent object.
        @param vX X-position relative to its parent object, i.e. the x-offset from the left border of the parent object
        @param vY Y-position relative to its parent object, i.e. the y-offset from the upper border of the parent object
        @param vWidth Width of the object
        @param vHeight Height of the object
        @param uiInnerColor Color to be used for drawing this control's center
               rectangle (everything except the border) in ARGB format.
        @param uiBorderColor Color to be used for drawing this control's frame
               in ARGB format.
        @param vBorderWidth The width of the border in pixels.
        @param eID Object identifier of this object (choose NO_HANDLE if none is required).
    */
    ExampleControl(
        CGUICompositeObject *const pParent,
        const eC_Value &vX, const eC_Value &vY,
        const eC_Value &vWidth, const eC_Value &vHeight,
        eC_UInt uiInnerColor, eC_UInt uiBorderColor,
        eC_Value vBorderWidth = eC_FromInt(1),
        const ObjectHandle_t &eID = NO_HANDLE);

    /// Default constructor to be used by the factory.
    ExampleControl();

#if defined(GUILIANI_STREAM_GUI)
    /** Reads all object attributes from streaming file.
        This method is called by CGUIFactoryManager after one of the registered
        factories has created an instance of this class.
    */
    virtual void ReadFromStream();
#endif

#if defined(GUILIANI_WRITE_GUI)
    /** Writes all object attributes to the streaming file. A CGUIStreamWriter
        has to be initialized first.
        @param bWriteClassID This flag is used to select if writing of ControlID,
               leading and trailing tags is performed.
    */
    virtual void WriteToStream(const eC_Bool bWriteClassID=false);
#endif

protected:
    /// Called by the Guiliani framework when this control should paint itself.
    eC_Bool DoDraw();

private:
    void Init();

private:
    /// The color used for drawing the center of this control.
    eC_UInt m_uiInnerColor;

    /// The color used for drawing the border of this control.
    eC_UInt m_uiBorderColor;

    /// The width of the border in (sub-) pixels.
    eC_Value m_vBorderWidth;

    eC_UByte m_ubDay;
    eC_UByte m_ubMonth;
    eC_UInt m_uiYear;
    ImageResource_t m_eBackgroundImageID;
    CGUINinePatch m_kBackground;
    ImageResource_t m_eMarkerImageID;
    CGUINinePatch m_kMarker;
    FontResource_t m_eFontID;
    eC_Value m_vRowHeight;
    eC_Bool m_bFillEmptySpaces;

    eC_UByte m_ubStartingWeekday;
    eC_UByte m_ubNumberOfDays;
};

#endif // EXAMPLE_CONTROL_H

--------------------

#include "ExampleControl.h"
#include "GfxWrap.h"
#include "GUIStreamReader.h"
#include "GUIStreamWriter.h"
#include "GUIStreamingException.h"
#include "GUIControlResource.h"

#include <string>

#include "GUIResourceManager.h"

#include "GUIMemLeakWatcher.h" // <-- has to be the last include

#define EXAMPLE_CONTROL_CLASS_VERSION 2
// The minimal class version allowed.
#define EXAMPLE_CONTROL_CLASS_MIN_VERSION 1

ExampleControl::ExampleControl(
    CGUICompositeObject *const pParent,
    const eC_Value &vX, const eC_Value &vY,
    const eC_Value &vWidth, const eC_Value &vHeight,
    eC_UInt uiInnerColor, eC_UInt uiBorderColor,
    eC_Value vBorderWidth,
    const ObjectHandle_t &eID) :
    CGUIObject(pParent, vX, vY, vWidth, vHeight, eID),
    m_uiInnerColor(uiInnerColor),
    m_uiBorderColor(uiBorderColor),
    m_vBorderWidth(vBorderWidth)
{
    Init();
}

ExampleControl::ExampleControl() :
    m_uiInnerColor(0),
    m_uiBorderColor(0),
    m_vBorderWidth(eC_FromInt(0))
{
    Init();
}

eC_Bool IsLeapYear(eC_UInt uiYear)
{
    if (uiYear % 400 == 0)
        return true;
    else if (uiYear % 100 == 0)
        return false;
    else if (uiYear % 4 == 0)
        return true;
    else
        return false;
}

eC_UByte CalculateNumberOfDays(eC_UByte ubMonth, eC_UInt uiYear)
{
    const eC_UByte aubDayCount[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

    if ((ubMonth == 2) && (IsLeapYear(uiYear)))
        return 29;
    else
        return aubDayCount[ubMonth - 1];
}

eC_UByte CalcWeekdayFromDate(eC_UByte ubDay, eC_UByte ubMonth, eC_UInt uiYear)
{
    ubMonth = (ubMonth + 9) % 12;
    uiYear -= ubMonth / 10;
    eC_UInt uiWeekday = 365 * uiYear + uiYear / 4 - uiYear / 100 + uiYear / 400 + (ubMonth * 306 + 5) / 10 + (ubDay - 1) + 3;

    return uiWeekday % 7;
}

void ExampleControl::Init()
{
    m_ubDay = 19;
    m_ubMonth = 1;
    m_uiYear = 1982;
    m_eBackgroundImageID = IMG_NAVIGATION;
    m_kBackground.Assign(0, 0, 0, 0);
    m_eMarkerImageID = IMG_MAIN_PLAY;
    m_kMarker.Assign(0, 0, 0, 0);
    m_eFontID = FNT_DEFAULT;
    m_vRowHeight = eC_FromInt(40);

    m_ubStartingWeekday = 0;
    m_ubNumberOfDays = 0;

    m_ubStartingWeekday = CalcWeekdayFromDate(1, m_ubMonth, m_uiYear);
    m_ubNumberOfDays = CalculateNumberOfDays(m_ubMonth, m_uiYear);

    GETRESMANAGER.RequestImageResource(m_eBackgroundImageID);
    GETRESMANAGER.RequestImageResource(m_eMarkerImageID);
    SetXMLTag("ExampleControl");
}

eC_Bool ExampleControl::DoDraw()
{
    CGUIRect kAbsRect(GetAbsRect());

    GETGFX.BlitImgNinePatch(m_eBackgroundImageID, kAbsRect, m_kBackground);

    m_vRowHeight = eC_Div(GetHeight(), eC_FromInt(6));
    eC_Value vDayWidth = eC_Div(GetWidth(), eC_FromInt(7));
    GETGFX.SetFont(FNT_KEYBOARD);

    eC_String kDay;
    eC_UByte ubCurrentDay = m_ubStartingWeekday;
    kAbsRect.Move(eC_Mul(eC_FromInt(m_ubStartingWeekday - 1), vDayWidth), eC_FromInt(0));
    for (eC_UByte ubDayIndex = 1; ubDayIndex <= m_ubNumberOfDays; ++ubDayIndex)
    {
        kDay = eC_String(ubDayIndex);
        if (ubDayIndex == m_ubDay)
            GETGFX.BlitImgNinePatch(m_eMarkerImageID, CGUIRect(kAbsRect.GetTopLeft(), vDayWidth, m_vRowHeight), m_kMarker);
        GETGFX.Text(kAbsRect.GetX1(), kAbsRect.GetY1(), &kDay);

        if ((ubCurrentDay % 7) == 0)
            kAbsRect.MoveTo(GetAbsXPos(), kAbsRect.GetY1() + m_vRowHeight);
        else
            kAbsRect.Move(vDayWidth, eC_FromInt(0));
        ++ubCurrentDay;
    }

    return true;
}

#if defined(GUILIANI_STREAM_GUI)
void ExampleControl::ReadFromStream()
{
    const eC_UInt cuiVersion = ReadStreamingHeader(EXAMPLE_CONTROL_CLASS_VERSION, EXAMPLE_CONTROL_CLASS_MIN_VERSION);

    if (cuiVersion <= 1)
    {
        m_uiInnerColor = GETINPUTSTREAM.READ_HEX("InnerColor");
        m_uiBorderColor = GETINPUTSTREAM.READ_HEX("BorderColor");
        m_vBorderWidth = eC_FromFloat(GETINPUTSTREAM.READ_FLOAT("BorderWidth"));

        CGUIObject::ReadFromStream();
    }
    else
    {
        // always base-class first
        CGUIObject::ReadFromStream();

        // remove grouping
        GETINPUTSTREAM.DELETE_COMMENT_TAG("ExampleControl");

        m_uiInnerColor = GETINPUTSTREAM.READ_HEX("InnerColor");
        m_uiBorderColor = GETINPUTSTREAM.READ_HEX("BorderColor");
        m_vBorderWidth = eC_FromFloat(GETINPUTSTREAM.READ_FLOAT("BorderWidth"));

        // remove grouping
        GETINPUTSTREAM.DELETE_COMMENT_TAG("/ExampleControl");
    }
}
#endif

#if defined(GUILIANI_WRITE_GUI)
void ExampleControl::WriteToStream(const eC_Bool bWriteClassID)
{
    WriteStreamingHeader(bWriteClassID, XMLTAG_CONTROLCLASSID, CTL_EXAMPLE, EXAMPLE_CONTROL_CLASS_VERSION);

    CGUIObject::WriteToStream();
    GETOUTPUTSTREAM.WriteCommentTag("ExampleControl");
    GETOUTPUTSTREAM.WriteHex(m_uiInnerColor, "InnerColor");
    GETOUTPUTSTREAM.WriteHex(m_uiBorderColor, "BorderColor");
    GETOUTPUTSTREAM.WriteFloat(eC_ToFloat(m_vBorderWidth), "BorderWidth");

    // write attribute-group end
    GETOUTPUTSTREAM.WriteCommentTag("/ExampleControl");

    WriteStreamingFooter(bWriteClassID);
}
#endif

------------------
https://www.appcues.com/blog/30-awesome-free-ui-vector-kits-for-your-mockups-and-wireframes
designmodo.github.io/Flat-UI/
https://mashable.com/2013/07/29/flat-design-ui-kits/?europe=true

- auto-stretch for text
- invalidate layout after resizing
- calendar-widget
- rating-slider (bargraph)
- multiedge-slider