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Halcon C ＃ sets the form font and adaptively displays pictures

2022-06-26 14:59:00 【Tingyi - flying bird】

Set form font

//  Use 
Form1.set_display_font(this.hWindowControl1, 24, "mono", "true", "false");

public static void set_display_font(HalconDotNet.HWindowControl hWindowCtl, HTuple hv_Size, HTuple hv_Font,
                                    HTuple hv_Bold, HTuple hv_Slant)
{
    

    HTuple hv_OS = null, hv_Fonts = new HTuple();
    HTuple hv_Style = null, hv_Exception = new HTuple(), hv_AvailableFonts = null;
    HTuple hv_Fdx = null, hv_Indices = new HTuple();
    HTuple hv_Font_COPY_INP_TMP = hv_Font.Clone();
    HTuple hv_Size_COPY_INP_TMP = hv_Size.Clone();

    HOperatorSet.GetSystem("operating_system", out hv_OS);
    // dev_get_preferences(...); only in hdevelop
    // dev_set_preferences(...); only in hdevelop
    if ((int)((new HTuple(hv_Size_COPY_INP_TMP.TupleEqual(new HTuple()))).TupleOr(
        new HTuple(hv_Size_COPY_INP_TMP.TupleEqual(-1)))) != 0)
    {
    
        hv_Size_COPY_INP_TMP = 16;
    }
    if ((int)(new HTuple(((hv_OS.TupleSubstr(0, 2))).TupleEqual("Win"))) != 0)
    {
    
        //Restore previous behaviour
        hv_Size_COPY_INP_TMP = ((1.13677 * hv_Size_COPY_INP_TMP)).TupleInt();
    }
    else
    {
    
        hv_Size_COPY_INP_TMP = hv_Size_COPY_INP_TMP.TupleInt();
    }
    if ((int)(new HTuple(hv_Font_COPY_INP_TMP.TupleEqual("Courier"))) != 0)
    {
    
        hv_Fonts = new HTuple();
        hv_Fonts[0] = "Courier";
        hv_Fonts[1] = "Courier 10 Pitch";
        hv_Fonts[2] = "Courier New";
        hv_Fonts[3] = "CourierNew";
        hv_Fonts[4] = "Liberation Mono";
    }
    else if ((int)(new HTuple(hv_Font_COPY_INP_TMP.TupleEqual("mono"))) != 0)
    {
    
        hv_Fonts = new HTuple();
        hv_Fonts[0] = "Consolas";
        hv_Fonts[1] = "Menlo";
        hv_Fonts[2] = "Courier";
        hv_Fonts[3] = "Courier 10 Pitch";
        hv_Fonts[4] = "FreeMono";
        hv_Fonts[5] = "Liberation Mono";
    }
    else if ((int)(new HTuple(hv_Font_COPY_INP_TMP.TupleEqual("sans"))) != 0)
    {
    
        hv_Fonts = new HTuple();
        hv_Fonts[0] = "Luxi Sans";
        hv_Fonts[1] = "DejaVu Sans";
        hv_Fonts[2] = "FreeSans";
        hv_Fonts[3] = "Arial";
        hv_Fonts[4] = "Liberation Sans";
    }
    else if ((int)(new HTuple(hv_Font_COPY_INP_TMP.TupleEqual("serif"))) != 0)
    {
    
        hv_Fonts = new HTuple();
        hv_Fonts[0] = "Times New Roman";
        hv_Fonts[1] = "Luxi Serif";
        hv_Fonts[2] = "DejaVu Serif";
        hv_Fonts[3] = "FreeSerif";
        hv_Fonts[4] = "Utopia";
        hv_Fonts[5] = "Liberation Serif";
    }
    else
    {
    
        hv_Fonts = hv_Font_COPY_INP_TMP.Clone();
    }
    hv_Style = "";
    if ((int)(new HTuple(hv_Bold.TupleEqual("true"))) != 0)
    {
    
        hv_Style = hv_Style + "Bold";
    }
    else if ((int)(new HTuple(hv_Bold.TupleNotEqual("false"))) != 0)
    {
    
        hv_Exception = "Wrong value of control parameter Bold";
        throw new HalconException(hv_Exception);
    }
    if ((int)(new HTuple(hv_Slant.TupleEqual("true"))) != 0)
    {
    
        hv_Style = hv_Style + "Italic";
    }
    else if ((int)(new HTuple(hv_Slant.TupleNotEqual("false"))) != 0)
    {
    
        hv_Exception = "Wrong value of control parameter Slant";
        throw new HalconException(hv_Exception);
    }
    if ((int)(new HTuple(hv_Style.TupleEqual(""))) != 0)
    {
    
        hv_Style = "Normal";
    }
    hv_AvailableFonts = hWindowCtl.HalconWindow.QueryFont();
    //HOperatorSet.QueryFont(hv_WindowHandle, out hv_AvailableFonts);
    hv_Font_COPY_INP_TMP = "";
    for (hv_Fdx = 0; (int)hv_Fdx <= (int)((new HTuple(hv_Fonts.TupleLength())) - 1); hv_Fdx = (int)hv_Fdx + 1)
    {
    
        hv_Indices = hv_AvailableFonts.TupleFind(hv_Fonts.TupleSelect(hv_Fdx));
        if ((int)(new HTuple((new HTuple(hv_Indices.TupleLength())).TupleGreater(0))) != 0)
        {
    
            if ((int)(new HTuple(((hv_Indices.TupleSelect(0))).TupleGreaterEqual(0))) != 0)
            {
    
                hv_Font_COPY_INP_TMP = hv_Fonts.TupleSelect(hv_Fdx);
                break;
            }
        }
    }
    if ((int)(new HTuple(hv_Font_COPY_INP_TMP.TupleEqual(""))) != 0)
    {
    
        throw new HalconException("Wrong value of control parameter Font");
    }
    hv_Font_COPY_INP_TMP = (((hv_Font_COPY_INP_TMP + "-") + hv_Style) + "-") + hv_Size_COPY_INP_TMP;

    hWindowCtl.HalconWindow.SetFont(hv_Font_COPY_INP_TMP);
    

    return;
}

Adaptive display picture

//  Use display 
Form1.DisplayImage(this.hWindowControl1, imgSub);

//  display picture 
private static void DisplayImage(HalconDotNet.HWindowControl hWindowCtl, HImage imgShow)
{
    
    //  Set the display size 
    imgShow.GetImageSize(out int imgWidth, out int imgHeight);

    double ratioWidth = (1.0) * imgWidth / hWindowCtl.Width;
    double ratioHeight = (1.0) * imgHeight / hWindowCtl.Height;

    HTuple row1, column1, row2, column2;
    if (ratioWidth >= ratioHeight)
    {
    
        row1 = -(1.0) * ((hWindowCtl.Height * ratioWidth) - imgHeight) / 2;
        column1 = 0;
        row2 = row1 + hWindowCtl.Height * ratioWidth;
        column2 = column1 + hWindowCtl.Width * ratioWidth;
    }
    else
    {
    
        row1 = 0;
        column1 = -(1.0) * ((hWindowCtl.Width * ratioHeight) - imgWidth) / 2;
        row2 = row1 + hWindowCtl.Height * ratioHeight;
        column2 = column1 + hWindowCtl.Width * ratioHeight;
    }

    //  display picture 
    hWindowCtl.HalconWindow.SetPart(row1, column1, row2, column2);
    
    hWindowCtl.HalconWindow.DispObj(imgShow);
}