Help: Adding Histogram Chart

[Devansh Varshney]

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.

[image: image.png]

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

-- 
*Regards,*
*Devansh*
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