/**
* stf_preview_new
* @data_container: a container in which to put a treeview.
*
* returns : a new renderdata struct
**/
RenderData_t*
stf_preview_new (GtkWidget *data_container,
GODateConventions const *date_conv)
{
RenderData_t* renderdata;
GnumericLazyList *ll;
g_return_val_if_fail (data_container != NULL, NULL);
renderdata = g_new (RenderData_t, 1);
renderdata->data_container = data_container;
renderdata->startrow = 1;
renderdata->colformats = g_ptr_array_new ();
renderdata->ignore_formats = FALSE;
renderdata->lines_chunk = NULL;
renderdata->lines = NULL;
renderdata->date_conv = date_conv;
ll = gnumeric_lazy_list_new (render_get_value, renderdata, 0, 1, G_TYPE_STRING);
renderdata->tree_view =
GTK_TREE_VIEW (gtk_tree_view_new_with_model (GTK_TREE_MODEL (ll)));
gtk_tree_view_set_grid_lines (renderdata->tree_view,
GTK_TREE_VIEW_GRID_LINES_VERTICAL);
g_object_ref (renderdata->tree_view);
g_object_unref (ll);
renderdata->colcount = 0;
{
GtkWidget *w = GTK_WIDGET (renderdata->tree_view);
int width, height, vertical_separator;
PangoLayout *layout =
gtk_widget_create_pango_layout (w, "Mg19");
gtk_widget_style_get (w,
"vertical_separator", &vertical_separator,
NULL);
pango_layout_get_pixel_size (layout, &width, &height);
/*
* Make room for about 80 characters and about 7 lines of data.
* (The +2 allows room for the headers and the h-scrollbar.
*/
gtk_widget_set_size_request (renderdata->data_container,
width * 20, /* About 80 chars. */
(height + vertical_separator) * (7 + 2));
g_object_unref (layout);
}
gtk_container_add (GTK_CONTAINER (renderdata->data_container),
GTK_WIDGET (renderdata->tree_view));
gtk_widget_show_all (GTK_WIDGET (renderdata->tree_view));
return renderdata;
}
static GnumericLazyList *
make_matches_model (DialogState *dd, int rows)
{
return gnumeric_lazy_list_new (search_get_value,
dd,
rows,
4,
G_TYPE_STRING,
G_TYPE_STRING,
G_TYPE_STRING,
G_TYPE_STRING);
}
void
stf_preview_set_lines (RenderData_t *renderdata,
GStringChunk *lines_chunk,
GPtrArray *lines)
{
unsigned int i;
int colcount = 1;
GnumericLazyList *ll;
gboolean hidden;
g_return_if_fail (renderdata != NULL);
/* Empty the table. */
gtk_tree_view_set_model (renderdata->tree_view, NULL);
if (renderdata->lines != lines) {
if (renderdata->lines)
stf_parse_general_free (renderdata->lines);
renderdata->lines = lines;
}
if (renderdata->lines_chunk != lines_chunk) {
if (renderdata->lines_chunk)
g_string_chunk_free (renderdata->lines_chunk);
renderdata->lines_chunk = lines_chunk;
}
if (lines == NULL)
return;
for (i = 0; i < lines->len; i++) {
GPtrArray *line = g_ptr_array_index (lines, i);
colcount = MAX (colcount, (int)line->len);
}
/*
* If we are making large changes we need to hide the treeview
* because performance otherwise suffers a lot.
*/
hidden = gtk_widget_get_visible (GTK_WIDGET (renderdata->tree_view)) &&
(colcount < renderdata->colcount - 1 ||
colcount > renderdata->colcount + 10);
if (hidden)
gtk_widget_hide (GTK_WIDGET (renderdata->tree_view));
while (renderdata->colcount > colcount)
gtk_tree_view_remove_column
(renderdata->tree_view,
gtk_tree_view_get_column (renderdata->tree_view,
--(renderdata->colcount)));
while (renderdata->colcount < colcount) {
char *text = g_strdup_printf (_(COLUMN_CAPTION),
renderdata->colcount + 1);
GtkCellRenderer *cell = gtk_cell_renderer_text_new ();
GtkTreeViewColumn *column =
gtk_tree_view_column_new_with_attributes
(text, cell,
"text", renderdata->colcount,
NULL);
g_object_set (cell,
"single_paragraph_mode", TRUE,
NULL);
gtk_tree_view_append_column (renderdata->tree_view, column);
g_free (text);
renderdata->colcount++;
}
ll = gnumeric_lazy_list_new (render_get_value, renderdata,
MIN (lines->len, LINE_DISPLAY_LIMIT),
0);
gnumeric_lazy_list_add_column (ll, colcount, G_TYPE_STRING);
gtk_tree_view_set_model (renderdata->tree_view, GTK_TREE_MODEL (ll));
g_object_unref (ll);
if (hidden)
gtk_widget_show (GTK_WIDGET (renderdata->tree_view));
}
