From 136f1889818226eef776152930172a9f82660d7e Mon Sep 17 00:00:00 2001
From: Charles Haley <cbhaley@i.wont.say.com>
Date: Fri, 10 Jan 2025 10:26:15 +0000
Subject: [PATCH] Add an option to adjust the size of the link and note icons
 in book details.

In the tag browser and booklist the icons resize automatically with the font. That doesn't happen in book details because there isn't any notion of a "row". With this option the user can make the size as desired. For more background see the first few posts of https://www.mobileread.com/forums/showthread.php?t=365537
---
 src/calibre/ebooks/metadata/book/render.py |  8 ++--
 src/calibre/gui2/__init__.py               |  1 +
 src/calibre/gui2/book_details.py           |  3 +-
 src/calibre/gui2/preferences/look_feel.py  |  1 +
 src/calibre/gui2/preferences/look_feel.ui  | 54 +++++++++++++++++++++-
 5 files changed, 62 insertions(+), 5 deletions(-)

diff --git a/src/calibre/ebooks/metadata/book/render.py b/src/calibre/ebooks/metadata/book/render.py
index e973b3aeb9..4418213291 100644
--- a/src/calibre/ebooks/metadata/book/render.py
+++ b/src/calibre/ebooks/metadata/book/render.py
@@ -107,13 +107,15 @@ def mi_to_html(
         mi,
         field_list=None, default_author_link=None, use_roman_numbers=True,
         rating_font='Liberation Serif', rtl=False, comments_heading_pos='hide',
-        for_qt=False, vertical_fields=(), show_links=True, item_id_if_has_note=None
+        for_qt=False, vertical_fields=(), show_links=True, item_id_if_has_note=None,
+        link_note_icon_size=16
     ):
 
     link_markup =  '↗️'
     if for_qt:
-        link_markup = '<img valign="bottom" src="calibre-icon:///external-link.png" width=16 height=16>'
-        note_markup = '<img valign="bottom" src="calibre-icon:///notes.png" width=16 height=16>'
+        s = link_note_icon_size
+        link_markup = f'<img valign="bottom" src="calibre-icon:///external-link.png" width={s} height={s}>'
+        note_markup = f'<img valign="bottom" src="calibre-icon:///notes.png" width={s} height={s}>'
     def get_link_map(column):
         try:
             return mi.link_maps[column]
diff --git a/src/calibre/gui2/__init__.py b/src/calibre/gui2/__init__.py
index c8793f9df6..6c73246e7f 100644
--- a/src/calibre/gui2/__init__.py
+++ b/src/calibre/gui2/__init__.py
@@ -485,6 +485,7 @@ def create_defs():
     defs['dark_palettes'] = {}
     defs['light_palettes'] = {}
     defs['saved_layouts'] = {}
+    defs['book_details_note_link_icon_width'] = 16
 
     def migrate_tweak(tweak_name, pref_name):
         # If the tweak has been changed then leave the tweak in the file so
diff --git a/src/calibre/gui2/book_details.py b/src/calibre/gui2/book_details.py
index b7b0e7caeb..fb66453598 100644
--- a/src/calibre/gui2/book_details.py
+++ b/src/calibre/gui2/book_details.py
@@ -398,7 +398,8 @@ def render_data(mi, use_roman_numbers=True, all_fields=False, pref_name='book_di
         mi, field_list=field_list, use_roman_numbers=use_roman_numbers, rtl=is_rtl(),
         rating_font=rating_font(), default_author_link=default_author_link(),
         comments_heading_pos=gprefs['book_details_comments_heading_pos'], for_qt=True,
-        vertical_fields=vertical_fields, show_links=show_links, item_id_if_has_note=item_id_if_has_note
+        vertical_fields=vertical_fields, show_links=show_links, item_id_if_has_note=item_id_if_has_note,
+        link_note_icon_size=gprefs['book_details_note_link_icon_width']
     )
 
 # }}}
diff --git a/src/calibre/gui2/preferences/look_feel.py b/src/calibre/gui2/preferences/look_feel.py
index 6568558df3..39f61db12e 100644
--- a/src/calibre/gui2/preferences/look_feel.py
+++ b/src/calibre/gui2/preferences/look_feel.py
@@ -678,6 +678,7 @@ class ConfigWidget(ConfigWidgetBase, Ui_Form):
         r('booklist_grid', gprefs)
         r('book_details_comments_heading_pos', gprefs, choices=[
             (_('Never'), 'hide'), (_('Above text'), 'above'), (_('Beside text'), 'side')])
+        r('book_details_note_link_icon_width', gprefs)
         self.cover_browser_title_template_button.clicked.connect(self.edit_cb_title_template)
         self.id_links_button.clicked.connect(self.edit_id_link_rules)
 
diff --git a/src/calibre/gui2/preferences/look_feel.ui b/src/calibre/gui2/preferences/look_feel.ui
index 75173697f5..48138780cf 100644
--- a/src/calibre/gui2/preferences/look_feel.ui
+++ b/src/calibre/gui2/preferences/look_feel.ui
@@ -957,7 +957,7 @@ A value of zero means calculate automatically.</string>
          </item>
         </layout>
        </item>
-       <item row="1" column="0" colspan="2">
+       <item row="1" column="0" colspan="3">
         <layout class="QHBoxLayout" name="horizontalLayout_2">
          <item>
           <widget class="QLabel" name="label_25">
@@ -979,6 +979,58 @@ A value of zero means calculate automatically.</string>
            </property>
           </widget>
          </item>
+         <item>
+          <spacer name="horizontalSpacer_bd13">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>10</width>
+             <height>0</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+         <item>
+          <widget class="QLabel" name="label_1022">
+           <property name="text">
+            <string>Link and note icon si&amp;ze:</string>
+           </property>
+           <property name="buddy">
+            <cstring>opt_book_details_note_link_icon_width</cstring>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QSpinBox" name="opt_book_details_note_link_icon_width">
+           <property name="toolTip">
+            <string>Specify the size (width and height) of the links and notes icons</string>
+           </property>
+           <property name="suffix">
+            <string> pixels</string>
+           </property>
+           <property name="maximum">
+            <number>48</number>
+           </property>
+           <property name="minimum">
+            <number>12</number>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <spacer name="horizontalSpacer_bd13">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>30</width>
+             <height>0</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
         </layout>
        </item>
       </layout>