Help: Adding Histogram Chart

[Devansh Varshney <varshney.devansh614@xxxxxxxxx>]

Hi,

So the custom UI options, just like how MSO-16 and onwards, allow users to modify how the Histogram should be created. 

We do now have that in UI too upon selecting the Chart option from the UI in LO Calc in the sidebar pane.

Now, the situation I am in is how do I sync these properties selected by the user back in the model from 

the Template as in the chart2/source/controller/dialogs/ChartTypeDialogController.cxx

void HistogramChartDialogController::fillExtraControls(

const rtl::Reference<::chart::ChartModel>& xChartModel,

const css::uno::Reference<css::beans::XPropertySet>& xTemplateProps) const

the fillExtraControls gets the default values from the template and the

void HistogramChartDialogController::setTemplateProperties(

const css::uno::Reference<css::beans::XPropertySet>& xTemplateProps) const

setTemplateProperties sets the values selected by the user back in the template.

In the PR also https://gerrit.libreoffice.org/c/core/+/168690 by Kurt the CompositeSize property 

is being used in the chart2/source/view/charttypes/PieChart.cxx view.

But, for our case of the Histogram, we need these properties in the model so that we can calculate the histogram again.

Both the

chart2/source/model/template/HistogramChartTypeTemplate.cxx

and

chart2/source/model/template/HistogramChartType.cxx

are available in the same directory, and the Template file needs to only deal with the Template-related stuff.

I am thinking of directly syncing the properties between the model files I even tried it but doesn't seem to be right what I tried.

OR am I missing something? How these properties are accessed in the model?

PR related to this  - https://gerrit.libreoffice.org/c/core/+/170909

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Regards,

Devansh