[evolution] I#2053 - Contacts: Correct print of multiline text

[Milan Crha <mcrha src gnome org>]

commit 76664579072a4978a7c0600b8f484c5d24ddeda7
Author: Milan Crha <mcrha redhat com>
Date:   Thu Sep 29 11:49:30 2022 +0200

    I#2053 - Contacts: Correct print of multiline text
    
    Closes https://gitlab.gnome.org/GNOME/evolution/-/issues/2053

 src/addressbook/printing/e-contact-print.c | 117 +++++++++++++++++++----------
 1 file changed, 78 insertions(+), 39 deletions(-)
---
diff --git a/src/addressbook/printing/e-contact-print.c b/src/addressbook/printing/e-contact-print.c
index 352ae9031a..7c7188503a 100644
--- a/src/addressbook/printing/e-contact-print.c
+++ b/src/addressbook/printing/e-contact-print.c
@@ -93,30 +93,69 @@ get_font_width (GtkPrintContext *context,
        return pango_units_to_double (width);
 }
 
+/* (transfer full) */
+static PangoLayout *
+contact_print_setup_layout (GtkPrintContext *context,
+                           PangoFontDescription *font,
+                           gdouble for_width,
+                           const gchar *text)
+{
+       PangoLayout *layout;
+       gdouble indent;
+       gchar *tmp_text = NULL;
+
+       layout = gtk_print_context_create_pango_layout (context);
+
+       if (for_width == -1 || (get_font_width (context, font, text) <= for_width && !strchr (text, '\n'))) {
+               indent = .0;
+       } else {
+               #define INDENT_TEXT "     "
+
+               indent = get_font_width (context, font, INDENT_TEXT);
+
+               if (strchr (text, '\n')) {
+                       GString *tmp;
+
+                       tmp = e_str_replace_string (text, "\n", "\n" INDENT_TEXT);
+                       tmp_text = g_string_free (tmp, FALSE);
+                       text = tmp_text;
+               }
+
+               #undef INDENT_TEXT
+       }
+
+       pango_layout_set_font_description (layout, font);
+       pango_layout_set_text (layout, text, -1);
+       pango_layout_set_width (layout, pango_units_from_double (for_width));
+       pango_layout_set_indent (layout, -pango_units_from_double (indent));
+       pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);
+
+       g_free (tmp_text);
+
+       return layout;
+}
+
 static void
 e_contact_output (GtkPrintContext *context,
                   PangoFontDescription *font,
                   gdouble x,
                   gdouble y,
                   gdouble width,
-                  const gchar *text)
+                  const gchar *text,
+                 gdouble *out_height)
 {
        PangoLayout *layout;
-       gdouble indent;
        cairo_t *cr;
 
-       layout = gtk_print_context_create_pango_layout (context);
+       layout = contact_print_setup_layout (context, font, width, text);
 
-       if (width == -1 || get_font_width (context, font, text) <= width)
-               indent = .0;
-       else
-               indent = get_font_width (context, font, "     ");
+       if (out_height) {
+               gint height = 0;
 
-       pango_layout_set_font_description (layout, font);
-       pango_layout_set_text (layout, text, -1);
-       pango_layout_set_width (layout, pango_units_from_double (width));
-       pango_layout_set_indent (layout, pango_units_from_double (indent));
-       pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);
+               pango_layout_get_size (layout, NULL, &height);
+
+               *out_height = pango_units_to_double (height);
+       }
 
        cr = gtk_print_context_get_cairo_context (context);
 
@@ -130,16 +169,14 @@ e_contact_output (GtkPrintContext *context,
 
 static gdouble
 e_contact_text_height (GtkPrintContext *context,
-                       PangoFontDescription *desc,
-                       const gchar *text)
+                      PangoFontDescription *desc,
+                      gdouble for_width,
+                      const gchar *text)
 {
        PangoLayout *layout;
        gint width, height;
 
-       layout = gtk_print_context_create_pango_layout (context);
-
-       pango_layout_set_font_description (layout, desc);
-       pango_layout_set_text (layout, text, -1);
+       layout = contact_print_setup_layout (context, desc, for_width, text);
 
        pango_layout_get_size (layout, &width, &height);
 
@@ -284,7 +321,7 @@ e_contact_get_contact_height (EContact *contact,
        file_as = e_contact_get (contact, E_CONTACT_FILE_AS);
 
        cntct_height += e_contact_text_height (
-               ctxt->context, ctxt->style->headings_font, file_as);
+               ctxt->context, ctxt->style->headings_font, ctxt->column_width, file_as);
 
        g_free (file_as);
 
@@ -311,6 +348,7 @@ e_contact_get_contact_height (EContact *contact,
                        cntct_height += n * e_contact_text_height (
                                                ctxt->context,
                                                ctxt->style->body_font,
+                                               ctxt->column_width,
                                                text);
                        g_list_free_full (emails, (GDestroyNotify) e_vcard_attribute_free);
                } else if (field > E_CONTACT_FIRST_EMAIL_ID &&
@@ -322,6 +360,7 @@ e_contact_get_contact_height (EContact *contact,
                        cntct_height += n * e_contact_text_height (
                                                ctxt->context,
                                                ctxt->style->body_font,
+                                               ctxt->column_width,
                                                text);
                        g_list_free_full (phones, (GDestroyNotify) e_vcard_attribute_free);
                } else if (field > E_CONTACT_FIRST_PHONE_ID &&
@@ -331,6 +370,7 @@ e_contact_get_contact_height (EContact *contact,
                        cntct_height += e_contact_text_height (
                                        ctxt->context,
                                        ctxt->style->body_font,
+                                       ctxt->column_width,
                                        text);
                }
 
@@ -351,7 +391,7 @@ print_line (EContactPrintContext *ctxt,
 {
        GtkPageSetup *setup;
        gdouble page_height;
-       gint wrapped_lines = 0;
+       gdouble text_height = 0.0;
        gchar *text;
 
        setup = gtk_print_context_get_page_setup (ctxt->context);
@@ -365,23 +405,19 @@ print_line (EContactPrintContext *ctxt,
        if (ctxt->y > page_height)
                e_contact_start_new_column (ctxt);
 
-       if (ctxt->pages == ctxt->page_nr)
+       if (ctxt->pages == ctxt->page_nr) {
                e_contact_output (
                        ctxt->context, ctxt->style->body_font,
-                       ctxt->x, ctxt->y, ctxt->column_width + 4, text);
-
-       if (get_font_width (ctxt->context,
-               ctxt->style->body_font, text) > ctxt->column_width)
-               wrapped_lines =
-                       (get_font_width (ctxt->context,
-                       ctxt->style->body_font, text) /
-                       (ctxt->column_width + 4)) + 1;
-       ctxt->y =
-               ctxt->y + ((wrapped_lines + 1) *
-               e_contact_text_height (
+                       ctxt->x, ctxt->y, ctxt->column_width + 4, text, &text_height);
+       } else {
+               text_height = e_contact_text_height (
                        ctxt->context,
                        ctxt->style->body_font,
-                       text));
+                       ctxt->column_width + 4,
+                       text);
+       }
+
+       ctxt->y = ctxt->y + text_height;
 
        ctxt->y += .2 * get_font_height (ctxt->style->body_font);
 
@@ -446,7 +482,7 @@ e_contact_print_contact (EContact *contact,
        gchar *file_as;
        cairo_t *cr;
        gint field;
-
+       gdouble text_height = 0.0;
 
        cr = gtk_print_context_get_cairo_context (ctxt->context);
        cairo_save (cr);
@@ -460,17 +496,20 @@ e_contact_print_contact (EContact *contact,
                cairo_rectangle (
                        cr, ctxt->x, ctxt->y, ctxt->column_width,
                        e_contact_text_height (ctxt->context,
-                               ctxt->style->headings_font, file_as));
+                               ctxt->style->headings_font, ctxt->column_width, file_as));
                cairo_fill (cr);
                cairo_restore (cr);
        }
 
-       if (ctxt->pages == ctxt->page_nr)
+       if (ctxt->pages == ctxt->page_nr) {
                e_contact_output (
                        ctxt->context, ctxt->style->headings_font,
-                       ctxt->x, ctxt->y, ctxt->column_width + 4, file_as);
-       ctxt->y += e_contact_text_height (
-               ctxt->context, ctxt->style->headings_font, file_as);
+                       ctxt->x, ctxt->y, ctxt->column_width + 4, file_as, &text_height);
+       } else {
+               text_height = e_contact_text_height (
+                       ctxt->context, ctxt->style->headings_font, ctxt->column_width + 4, file_as);
+       }
+       ctxt->y += text_height;
 
        g_free (file_as);