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How to change Label Size

Posted By joern kunze 7 Years Ago
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joern kunze
Posted 7 Years Ago
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Hi Experts,
I want to add to a chart a footer label to give some status information which should look like:
https://www.nevron.com/forum/uploads/images/fe49dc49-d4d7-4c2e-89fa-c5d6.bmp

Unfortunatly, I cant change the footer label's width to fit the width of the chart. The code looks as follows:
   /*----- ChartPane Footer -----*/
    //Attn: refresh in ucMain is necessary!!! => _oChartPane._PaneFooter.Refresh();
    m_ContainerPanel = new NDockPanel();
    m_ContainerPanel.Location = new NPointL(new NLength(7, NRelativeUnit.ParentPercentage), new NLength(96, NRelativeUnit.ParentPercentage));

    m_ContainerPanel.Size = new NSizeL(new NLength(100, NRelativeUnit.ParentPercentage), new NLength(5, NRelativeUnit.ParentPercentage));
    m_ContainerPanel.DockMode = PanelDockMode.Bottom;
    m_ContainerPanel.PositionChildPanelsInContentBounds = false;


    _PaneFooter = new NLabel("Info: some status information will be given here ...");
    _PaneFooter.DockMode = PanelDockMode.None;  //alternativly: using Panels.AddFooter => doesnt work...
    _PaneFooter.TextStyle.FontStyle = new NFontStyle("Arial", 10, FontStyle.Regular);
    _PaneFooter.ContentAlignment = ContentAlignment.MiddleLeft;  // BottomCenter;  //MiddleLeft;

    _PaneFooter.UseAutomaticSize = false;
    _PaneFooter.Location = new NPointL(new NLength(100, NRelativeUnit.ParentPercentage), new NLength(85, NRelativeUnit.ParentPercentage));
    _PaneFooter.Size = new NSizeL(new NLength(100, NRelativeUnit.ParentPercentage), new NLength(600, NGraphicsUnit.Pixel));

    _PaneFooter.BoundsMode = BoundsMode.None; //fit doesnt work neither
    _PaneFooter.FitMode = TitleFitMode.Clip;

    _PaneFooter.TextStyle.BackplaneStyle.Visible = true;
    _PaneFooter.TextStyle.BackplaneStyle.FillStyle = new NColorFillStyle(Color.AliceBlue); //new NGradientFillStyle(Color.LightGray, Color.LightGray);

    _PaneFooter.Text = sMainPaneFooter;

    m_ContainerPanel.ChildPanels.Add(_PaneFooter);
    _NevronChart.Panels.Add(m_ContainerPanel);

I tried various settings with and without the ContainerPanel, the method .AddFooter etc - but with no luck so far. The main problem is, that the command  _PaneFooter.Size = ...  doesnt work at all, the result always is a centered label where the borders are  fitted to the length of the text - it always looks like: 
https://www.nevron.com/forum/uploads/images/1f69e79b-6cc6-44b4-b55d-509b.bmp

Is there a way to change just the width of the label?

If there isnt a way, it would be sufficient to force the clipping mode:
_PaneFooter.FitMode = TitleFitMode.Clip;
not to clip the text at both sides left and right but just at the right side.
Is there a way to achieve this?
By the way: I cant imagine any real case where it makes sense to clip the text at left and right side - usually the most important part of the label text is at the beginning - so imho it would be much better to clip only the right part of the text.

Thanks for your help!

Best regards,
Joern

Nevron Support
Posted 7 Years Ago
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Hi Joern,

We would advise to use panel docking (and optionally panel borders) to have a label that completely spans the bottom part of the chart - for example:

NLabel footer = new NLabel();
footer.Text = "Footer";
footer.DockMode = PanelDockMode.Bottom;
nChartControl1.Panels.Add(footer);


NDockPanel contentPanel = new NDockPanel();
contentPanel.Margins = new NMarginsL(10, 10, 10, 10);
contentPanel.DockMode = PanelDockMode.Fill;

NLabel header = new NLabel();
header.Margins = new NMarginsL(0, 0, 0, 10);
header.Text = "Header";
header.DockMode = PanelDockMode.Top;
contentPanel.ChildPanels.Add(header);

NCartesianChart chart = new NCartesianChart();
chart.DockMode = PanelDockMode.Fill;

contentPanel.ChildPanels.Add(chart);

nChartControl1.Panels.Add(contentPanel);

You're right about the clipping - in this case it should automatically set text alignment to left.



Best Regards,
Nevron Support Team



joern kunze
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... thanks for the quick response - I did follow your suggestion, but unfortunatly the result is still the same:
https://www.nevron.com/forum/uploads/images/37ca3bbb-2540-4a9c-9c33-1883.bmp
I have altered my code like suggested:
   //=======================================
    NLabel footer = new NLabel();
    footer.Text = "Footer";
    footer.DockMode = PanelDockMode.Bottom;
    footer.TextStyle.BackplaneStyle.Visible = true;
    footer.TextStyle.BackplaneStyle.FillStyle = new NColorFillStyle(Color.AliceBlue); //new NGradientFillStyle(Color.LightGray, Color.LightGray);
    nChartControl1.Panels.Add(footer);

    NDockPanel contentPanel = new NDockPanel();
    contentPanel.Margins = new NMarginsL(10, 10, 10, 10);
    contentPanel.DockMode = PanelDockMode.Fill;
    NLabel header = new NLabel();
    header.Margins = new NMarginsL(0, 0, 0, 10);
    header.Text = "Header";
    header.DockMode = PanelDockMode.Top;
    contentPanel.ChildPanels.Add(header);


    //NCartesianChart chart = new NCartesianChart();
    chart.DockMode = PanelDockMode.Fill;
    contentPanel.ChildPanels.Add(chart);
    nChartControl1.Panels.Add(contentPanel);


Did I miss some other important settings to do?

Nevron Support
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Hi Joern,

Don't use the backplane style - instead use the background fill and frame properties. For more information check out the following link:
http://helpdotnetvision.nevron.com/UsersGuide_Panels_BorderAndBackground.html



Best Regards,
Nevron Support Team



joern kunze
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... thanks a lot - now I am almost there: 
   footer.BackgroundFillStyle = new NColorFillStyle(Color.AliceBlue);
does the trick for the background color,

 But the text is still centered in the middle. I tried:
    footer.ContentAlignment = ContentAlignment.MiddleLeft;
This setting doesnt change anything - is there a way to get the text alligned to the left of the footer?

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Hi Joern,

Try FitAlignment - ContentAlignment will not have any effect when the panel is docked. It is used to specify relative alignment when you use Location / Size based positioning of the panel.



Best Regards,
Nevron Support Team



joern kunze
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.. thanks again - now the footer-label for status infos works as expected. Just in case somebody has a similar problem - here the full code: 
   /*----- ChartPane Footer -----*/  
    //Attn: refresh in ucMain is necessary!!! => _oChartPane._PaneFooter.Refresh();
    int iFontSize = 10;
    m_ContainerPanel = new NDockPanel();
    m_ContainerPanel.Location = new NPointL(new NLength(7, NRelativeUnit.ParentPercentage), new NLength(96, NRelativeUnit.ParentPercentage));

    m_ContainerPanel.Size = new NSizeL(new NLength(100, NRelativeUnit.ParentPercentage), new NLength(iFontSize + 12, NGraphicsUnit.Pixel));
    m_ContainerPanel.DockMode = PanelDockMode.Bottom;
    m_ContainerPanel.PositionChildPanelsInContentBounds = false;
    _PaneXLabel.Margins = new NMarginsL(0, 0, 0, 0);

    _PaneFooter = new NLabel(""); //_NevronChart.Labels.AddHeader("test footer"); //new NLabel("Test"); 
    _PaneFooter.DockMode = PanelDockMode.None;  //alternativly: using Panels.AddFooter
    _PaneFooter.TextStyle.FontStyle = new NFontStyle("Arial", iFontSize, FontStyle.Regular);
    _PaneFooter.ContentAlignment = ContentAlignment.MiddleLeft;  // BottomCenter;  //MiddleLeft;
    _PaneFooter.FitAlignment = ContentAlignment.MiddleLeft;

    _PaneFooter.UseAutomaticSize = false;
    _PaneFooter.Size = new NSizeL(new NLength(100, NRelativeUnit.ParentPercentage), new NLength(iFontSize + 10, NGraphicsUnit.Pixel));
    _PaneFooter.Location = new NPointL(new NLength(100, NRelativeUnit.ParentPercentage), new NLength(85, NRelativeUnit.ParentPercentage));
    
    _PaneFooter.BoundsMode = BoundsMode.None; //fit doesnt work neither
    _PaneFooter.FitMode = TitleFitMode.Clip; //Clip Mode rather clumsy: Text is clipped at both sides - so probably the status text will loose its meaning... 

    // apply border to the label
    NEdgeBorderStyle labelBorder = new NEdgeBorderStyle();
    labelBorder.OuterBevelWidth = new NLength(0);
    labelBorder.InnerBevelWidth = new NLength(0);
    labelBorder.MiddleBevelWidth = new NLength(1, NGraphicsUnit.Pixel);
    labelBorder.Shape = BorderShape.Rectangle;
    labelBorder.MiddleBevelFillStyle = new NColorFillStyle(Color.Black);
    _PaneFooter.BorderStyle = labelBorder;

    _PaneFooter.TextStyle.FontStyle.EmSize = new NLength(9, NGraphicsUnit.Point);
    _PaneFooter.BackgroundFillStyle = new NColorFillStyle(Color.AliceBlue);  //not: _PaneFooter.TextStyle.BackplaneStyle => this is only Background Text Color
 
   _PaneFooter.Margins = new NMarginsL(0, 0, 0, 0);

    m_ContainerPanel.ChildPanels.Add(_PaneFooter);
    _NevronChart.Panels.Add(m_ContainerPanel);
    this.PaneFooter = sPaneFooter;

    
Best regards,
Joern



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