Updates to scripting and reports for CPA macro functionality

src/casewin.cpp

@@ -496,6 +496,46 @@ bool CaseWindow::RunSSCBaseCase(wxString& fn, bool silent, wxString* messages)
 }
 
 
+bool CaseWindow::ExportCashflowExcel()
+{
+	if (m_case != NULL) {
+
+		// if no outputs run a simulation. this approach could result in exported cash flow not matching current inputs if user modifies inputs without running a simulation before exporting
+		if (m_case->BaseCase().Outputs().size() == 0) {
+			RunBaseCase();
+		}
+
+		// all cash flow models have cf_om_fixed_expense output except standalone battery
+		bool is_cf_model;
+		if (auto* vv = m_case->BaseCase().GetOutput("cf_om_fixed_expense"))
+			is_cf_model = true;
+		else if (auto* vv1 = m_case->BaseCase().GetOutput("cf_om_fixed1_expense")) // standalone battery
+			is_cf_model = true;
+		else
+			is_cf_model = false;
+
+		if ( is_cf_model ) {
+#ifdef __WXMSW__
+				//	UpdateResults();
+				m_baseCaseResults->Export(EXP_CASHFLOW, EXP_SEND_EXCEL);
+				return true;
+#else
+				wxMessageBox("Excel export is only supported on Windows systems.");
+				return false;
+#endif
+		}
+		else {
+			wxMessageBox("No cash flow to export. Export cash flow requires a cash flow-based financial model.");
+			return false;
+		}
+	}
+	else {
+		wxMessageBox("No active case selected.");
+		return false;
+	}
+}
+
+
 void CaseWindow::UpdateResults()
 {
 	m_baseCaseResults->Setup( &m_case->BaseCase() );

src/casewin.h

@@ -100,6 +100,8 @@ class CaseWindow : public wxSplitterWindow, CaseEventListener
 	bool RunBaseCase( bool silent = false, wxString *messages = 0 );
 	void UpdateResults();
 
+	bool ExportCashflowExcel();
+
 	bool RunSSCBaseCase(wxString& fn, bool silent = false, wxString* messages = 0);
 
 	bool GenerateReport( 

src/macro.cpp

@@ -32,6 +32,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
 #include "macro.h"
+#include "invoke.h"
 
 class macro_vm : public lk::vm
 {

src/reports.cpp

@@ -2255,11 +2255,16 @@ void SamReportScriptObject::Render( wxPageOutputDevice &dv )
 		env.register_funcs( lk::stdlib_math() );
 		env.register_funcs( lk::stdlib_wxui() );
 
-		wxStopWatch sw;
-		lk::eval e( tree, &env );
-		if ( !e.run() )
-			for (size_t i=0;i<e.error_count();i++)
-				errors += e.get_error(i) + "\n";
+		try {
+			wxStopWatch sw;
+			lk::eval e(tree, &env);
+			if (!e.run())
+				for (size_t i = 0; i < e.error_count(); i++)
+					errors += e.get_error(i) + "\n";
+		}
+		catch (std::exception e) {
+			wxMessageBox(e.what());
+		}
 	}
 
 	int i=0;
@@ -2559,7 +2564,7 @@ void SamReportScriptObject::RenderTable( const matrix_t<wxString> &tab )
 		float xpos = tab_x;
 		for (int c=0;c<(int)tab.ncols();c++)
 		{
-			int align = (r==0) ? m_headerAlign : m_cellAlign;
+			int align = (r<m_headerLines) ? m_headerAlign : m_cellAlign;
 			switch( align )
 			{
 			case wxLEFT:
@@ -2602,11 +2607,11 @@ void SamReportScriptObject::RenderTable( const matrix_t<wxString> &tab )
 	}
 
 	m_curDevice->Color( *wxBLACK );
-	if (m_headerLine && row_heights.size() > 0)
-		m_curDevice->Line( tab_x, tab_y+row_heights[0], 
-			tab_x+tab_width, tab_y+row_heights[0] );
+	if (m_headerLine && row_heights.size() > 0 )
+		m_curDevice->Line( tab_x, tab_y+m_headerLines*row_heights[0], 
+			tab_x+tab_width, tab_y+ m_headerLines * row_heights[0] );
     float ypos_total_lines = tab_y+row_heights[0];
-    for (int r = 1; r < (int)tab.nrows(); r++) {
+    for (int r = m_headerLines - 1; r < (int)tab.nrows(); r++) {
         ypos_total_lines += row_heights[r];
         for (int b = 0; b < m_totalLines.size(); b++) {
             if (r == m_totalLines[b] && r != (int)tab.nrows() - 1) {

src/results.h

@@ -191,6 +191,8 @@ class ResultsViewer : public wxMetroNotebook
 	TabularBrowser *GetTabularBrowser() { return m_tables; }
 	wxString GetCurrentContext() const;
 
+	void Export(int data, int mechanism);
+
 private:	
 	Simulation *m_sim = nullptr;
 
@@ -227,7 +229,6 @@ class ResultsViewer : public wxMetroNotebook
 
 	void AddDataSet( wxDVTimeSeriesDataSet *ds, const wxString &group = wxEmptyString, bool update_ui = true );
 	void RemoveAllDataSets();
-	void Export(int data, int mechanism);
 	void GetExportData(int data, matrix_t<wxString> &table);
 	void ExportEqnExcel();
 

src/script.cpp

@@ -590,6 +590,19 @@ void fcall_show_page(lk::invoke_t &cxt)
 	else cxt.error("no active case");
 }
 
+void fcall_export_cashflow_excel(lk::invoke_t& cxt)
+{
+	LK_DOC("export_cashflow_excel", "Exports the current cash flow to Excel from the active case (Windows only). Runs a simulation before exporting only if the case has no results.", "():boolean");
+	Case* active_case = CurrentCase();
+	if (CaseWindow* case_window = SamApp::Window()->GetCaseWindow(active_case)) {
+		cxt.result().assign(case_window->ExportCashflowExcel() ? 1.0 : 0.0);
+	}
+	else {
+		cxt.error("no active case window");
+		cxt.result().assign(0.0);
+	}
+}
+
 void fcall_widgetpos( lk::invoke_t &cxt )
 {
 	LK_DOC("widgetpos", "Get geometry in pixels in toplevel coordinates of the widget associated with the specified variable.", "(string:name):array" );
@@ -659,6 +672,7 @@ lk::fcall_t *sam_functions() {
 		fcall_simulate,
         fcall_simulate_ssc_tests,
 		fcall_show_page,
+		fcall_export_cashflow_excel,
 		fcall_widgetpos,
 		fcall_focusto,
 		fcall_configuration,