[gnumeric] Support --export-range in LaTeX export.

[Andreas J. Guelzow <guelzow src gnome org>]

commit 7669b253be159df69ac59a1d59189d588bbec8d4
Author: Andreas J Guelzow <aguelzow pyrshep ca>
Date:   Tue Dec 7 21:46:23 2010 -0700

    Support --export-range in LaTeX export.
    
    2010-12-07  Andreas J. Guelzow <aguelzow pyrshep ca>
    
    	* latex.c (file_saver_sheet_get_extent): new
    	(latex_file_save): use file_saver_sheet_get_extent
    	(latex_table_file_save): use file_saver_sheet_get_extent

 NEWS                   |    1 +
 plugins/html/ChangeLog |    6 ++++++
 plugins/html/latex.c   |   26 ++++++++++++++++++++++++--
 3 files changed, 31 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index 75e6c0c..a895ce2 100644
--- a/NEWS
+++ b/NEWS
@@ -5,6 +5,7 @@ Andreas:
 	* Permit data entry by-passing autocorrection.
 	* Work around OpenOffice date formatting bugs. [#636131]
 	* Export text formats to and import from ODF. [#636158]
+	* Support --export-range in LaTeX export.
 
 Jean:
 	* Only disable the formula bar when a chart sheet is selected. [#636031]
diff --git a/plugins/html/ChangeLog b/plugins/html/ChangeLog
index 34a695f..6889d89 100644
--- a/plugins/html/ChangeLog
+++ b/plugins/html/ChangeLog
@@ -1,3 +1,9 @@
+2010-12-07  Andreas J. Guelzow <aguelzow pyrshep ca>
+
+	* latex.c (file_saver_sheet_get_extent): new
+	(latex_file_save): use file_saver_sheet_get_extent
+	(latex_table_file_save): use file_saver_sheet_get_extent
+	
 2010-11-25  Morten Welinder <terra gnome org>
 
 	* Release 1.10.12
diff --git a/plugins/html/latex.c b/plugins/html/latex.c
index 7af386e..3964c8a 100644
--- a/plugins/html/latex.c
+++ b/plugins/html/latex.c
@@ -1,3 +1,4 @@
+/* vim: set sw=8: -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
 /*
  * latex.c
  *
@@ -1163,6 +1164,27 @@ latex2e_print_hhline (GsfOutput *output, GnmStyleBorderType *clines, int n, GnmS
 	gsf_output_printf (output, "}\n");
 }
 
+static GnmRange
+file_saver_sheet_get_extent (Sheet *sheet)
+{
+  	GnmRangeRef *range 
+		= g_object_get_data (G_OBJECT (sheet->workbook), 
+				     "ssconvert-range");
+	if (range) {
+		Sheet *start_sheet, *end_sheet;
+		GnmEvalPos ep;
+		GnmRange r;
+
+		gnm_rangeref_normalize (range,
+					eval_pos_init_sheet (&ep, sheet),
+					&start_sheet, &end_sheet,
+					&r);
+		if (start_sheet == sheet)
+			return r;
+	}
+	return sheet_get_extent (sheet, TRUE);
+}
+
 /**
  * latex_file_save :  The LaTeX2e exporter plugin function.
  *
@@ -1194,7 +1216,7 @@ latex_file_save (GOFileSaver const *fs, GOIOContext *io_context,
 
 	/* Get the topmost sheet and its range from the plugin function argument. */
 	current_sheet = wb_view_cur_sheet(wb_view);
-	total_range = sheet_get_extent (current_sheet, TRUE);
+	total_range = file_saver_sheet_get_extent (current_sheet);
 
 	num_cols = total_range.end.col - total_range.start.col + 1;
 
@@ -1465,7 +1487,7 @@ latex_table_file_save (GOFileSaver const *fs, GOIOContext *io_context,
 
 	/* Get the topmost sheet and its range from the plugin function argument. */
 	current_sheet = wb_view_cur_sheet(wb_view);
-	total_range = sheet_get_extent (current_sheet, TRUE);
+	total_range = file_saver_sheet_get_extent (current_sheet);
 
 	/* Step through the sheet, writing cells as appropriate. */
 	for (row = total_range.start.row; row <= total_range.end.row; row++) {