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[macmiller]

The documentation here is quite good:

http://forum.coppermine-gallery.net/index.php?topic=26897.msg123990#msg123990

Since I first tried to add buttons to my themes without reading it, then found it, then subsequently still spent some time figuring it out, I wanted to note what I found:

In all theme customizations, you copy code from the sample/theme.php to your theme.php

clarification:  You copy the code from /include/themes.inc.php to your theme, eg /themes/rainy_day/theme.php.

STEP 1 would be to copy the code indicated from the /include/themes.inc.php to your theme, eg. /themes/rainy_day/theme.php without changing anything.  Copy over this theme.php file to your server.  When you view your coppermine page you should notice no difference. 

STEP 2 You can now find the addbutton section, and go ahead and add your buttons, changing only the first, second and third parameters.  Here I have added three new navigation buttons after the original home button.  If you want to change the text displayed for the home button, you would edit your /lang/english.php file (to change the english version) and copy that over. 

like

Code: [Select]

    addbutton($sys_menu_buttons,'{HOME_LNK}','{HOME_TITLE}','{HOME_TGT}','home',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'forum home','go to the mysite forum home','http://www.mysite.com/forum','home',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'blog home','go to the mysite blog home','http://www.mysite.com/blog','home',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'main home','go to the mysite main home page','http://www.mysite.com/','home',$template_sys_menu_spacer);

[Joachim Müller]

clarification:  You copy the code from \include\themes.inc.php to your theme, eg \themes\rainy_day\theme.php.

No, that's wrong. The original instructions apply: copy from themes/sample/theme.php.
Leave include/themes.inc.php alone! Don't even copy from it! We mean it.

[macmiller]

Thanks for the correction, sorry for being such a bonehead.  For some reason I wasn't able to locate sample/theme before which caused me to locate the wrong file, which coincidentally worked, but I'm sure would have broken something later.

So now in correcting my previous error, here is what I did.   

1.)  Copied the stated code from sample/theme.php as stated to the target file, in this case /rainy_day/theme.php.
2.)  Moved the $template_sys_menu and $template_sys_menu_button down to replace the $template_sys_menu and $template_sys_menu_button in the copied over code.
3.)  Added in the new custom buttons.

(Originally I didn't do step 2 and the symptom was the themes custom buttons got hosed)

In the modified theme file below, I put a modificationstoaddbuttonsstart and modificationstoaddbuttonend comment at the beginning and end of every change I made.  This is now working.

Code: [Select]

<?php
/*************************
  Coppermine Photo Gallery
  ************************
  Copyright (c) 2003-2006 Coppermine Dev Team
  v1.1 originally written by Gregory DEMAR

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.
  ********************************************
  Coppermine version: 1.4.10
  $Source$
  $Revision: 3275 $
  $Author: gaugau $
  $Date: 2006-09-03 12:10:47 +0200 (So, 03 Sep 2006) $
**********************************************/

// ------------------------------------------------------------------------- //
// This theme has had all redundant CORE items removed                           //
// ------------------------------------------------------------------------- //

define('THEME_HAS_RATING_GRAPHICS', 1);
define('THEME_IS_XHTML10_TRANSITIONAL',1);

/**modificationstoaddbuttonsstart These blocks get moved, are left here for reference only
// HTML template for sys_menu
$template_sys_menu = <<<EOT
  <div class="topmenu">
          <table border="0" cellpadding="0" cellspacing="0">
                  <tr>
  {BUTTONS}
                  </tr>
          </table>
  </div>
EOT;

// HTML template for template sys_menu buttons
$template_sys_menu_button = <<<EOT
<!-- BEGIN {BLOCK_ID} -->
  <td><img src="images/spacer.gif" width="5" height="25" border="0" alt="" /></td>
  <td><img src="themes/rainy_day/images/button1_r1_c1.gif" width="5" height="25" border="0" alt="" /></td>
  <td style="background-image:url(themes/rainy_day/images/button1_r1_c2.gif)">
          <a href="{HREF_TGT}" title="{HREF_TITLE}">{HREF_LNK}</a>
  </td>
  <td><img src="themes/rainy_day/images/button1_r1_c3.gif" width="5" height="25" border="0" alt="" /></td>
<!-- END {BLOCK_ID} -->
EOT;
modificationstoaddbuttonsend **/

// Creates buttons from a template using an array of tokens
// this function is used in this file it needs to be declared before being called.
function assemble_template_buttons($template_buttons,$buttons) {
    $counter=0;
    $output='';

    foreach ($buttons as $button)  {
      if (isset($button[4])) {
         $spacer=$button[4];
      } else {
      $spacer='';
      }

        $params = array(
            '{SPACER}'     => $spacer,
            '{BLOCK_ID}'   => $button[3],
            '{HREF_TGT}'   => $button[2],
            '{HREF_TITLE}' => $button[1],
            '{HREF_LNK}'   => $button[0]
            );
        $output.=template_eval($template_buttons, $params);
    }
    return $output;
}


// Creates an array of tokens to be used with function assemble_template_buttons
// this function is used in this file it needs to be declared before being called.
function addbutton(&$menu,$href_lnk,$href_title,$href_tgt,$block_id,$spacer) {
  $menu[]=array($href_lnk,$href_title,$href_tgt,$block_id,$spacer);
}


/** modificationstoaddbuttonsstart this block of sample/theme.php gets replaced by the original
// HTML template for sys_menu
$template_sys_menu = <<<EOT
          {BUTTONS}
EOT;
modificationstoaddbuttonsend **/
// modificationstoaddbuttonsstart - the original template_sys_menu and template_sys_menu_button goes here
// HTML template for sys_menu
$template_sys_menu = <<<EOT
  <div class="topmenu">
          <table border="0" cellpadding="0" cellspacing="0">
                  <tr>
  {BUTTONS}
                  </tr>
          </table>
  </div>
EOT;

// HTML template for template sys_menu buttons
$template_sys_menu_button = <<<EOT
<!-- BEGIN {BLOCK_ID} -->
  <td><img src="images/spacer.gif" width="5" height="25" border="0" alt="" /></td>
  <td><img src="themes/rainy_day/images/button1_r1_c1.gif" width="5" height="25" border="0" alt="" /></td>
  <td style="background-image:url(themes/rainy_day/images/button1_r1_c2.gif)">
          <a href="{HREF_TGT}" title="{HREF_TITLE}">{HREF_LNK}</a>
  </td>
  <td><img src="themes/rainy_day/images/button1_r1_c3.gif" width="5" height="25" border="0" alt="" /></td>
<!-- END {BLOCK_ID} -->
EOT;
// modificationstoaddbuttonsend

// HTML template for sub_menu
$template_sub_menu = $template_sys_menu;

if (!defined('THEME_HAS_NO_SYS_MENU_BUTTONS')) {

  // HTML template for template sys_menu spacer
  $template_sys_menu_spacer ="::";

/** modificationstoaddbuttonsstart this sample/theme.php gets commented out 
  // HTML template for template sys_menu buttons
  $template_sys_menu_button = <<<EOT
  <!-- BEGIN {BLOCK_ID} -->
        <a href="{HREF_TGT}" title="{HREF_TITLE}">{HREF_LNK}</a> {SPACER}
  <!-- END {BLOCK_ID} -->
EOT;
modificationstoaddbuttonsend **/

  // HTML template for template sys_menu buttons
    // {HREF_LNK}{HREF_TITLE}{HREF_TGT}{BLOCK_ID}{SPACER}
    addbutton($sys_menu_buttons,'{HOME_LNK}','{HOME_TITLE}','{HOME_TGT}','home',$template_sys_menu_spacer);
// modificationstoaddbuttonsstart - add buttons as desired
    addbutton($sys_menu_buttons,'Forum Home','go to the testsite forum home','http://www.testsite.com/forum','home',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'Blog Home','go to the testsite blog home','http://www.testsite.com/blog','home',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'Main Home','go to the testsite main home page','http://www.testsite.com/','home',$template_sys_menu_spacer);
// modificationstoaddbuttonsend - end of adding buttons
    addbutton($sys_menu_buttons,'{MY_GAL_LNK}','{MY_GAL_TITLE}','{MY_GAL_TGT}','my_gallery',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'{MEMBERLIST_LNK}','{MEMBERLIST_TITLE}','{MEMBERLIST_TGT}','allow_memberlist',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'{MY_PROF_LNK}','{MY_PROF_TITLE}','{MY_PROF_TGT}','my_profile',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'{ADM_MODE_LNK}','{ADM_MODE_TITLE}','{ADM_MODE_TGT}','enter_admin_mode',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'{USR_MODE_LNK}','{USR_MODE_TITLE}','{USR_MODE_TGT}','leave_admin_mode',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'{UPL_PIC_LNK}','{UPL_PIC_TITLE}','{UPL_PIC_TGT}','upload_pic',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'{REGISTER_LNK}','{REGISTER_TITLE}','{REGISTER_TGT}','register',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'{FAQ_LNK}','{FAQ_TITLE}','{FAQ_TGT}','faq',$template_sys_menu_spacer);
    addbutton($sys_menu_buttons,'{LOGIN_LNK}','{LOGIN_TITLE}','{LOGIN_TGT}','login','');
    addbutton($sys_menu_buttons,'{LOGOUT_LNK}','{LOGOUT_TITLE}','{LOGOUT_TGT}','logout','');
    // Login and Logout don't have a spacer as only one is shown, and either would be the last option.

  $params = array('{BUTTONS}' => assemble_template_buttons($template_sys_menu_button,$sys_menu_buttons));
  $template_sys_menu = template_eval($template_sys_menu,$params);
}

if (!defined('THEME_HAS_NO_SUB_MENU_BUTTONS')) {

  // HTML template for template sub_menu spacer
  $template_sub_menu_spacer = $template_sys_menu_spacer;

  // HTML template for template sub_menu buttons
  $template_sub_menu_button= $template_sys_menu_button;

  // HTML template for template sub_menu buttons
    // {HREF_LNK}{HREF_TITLE}{HREF_TGT}{BLOCK_ID}{SPACER}
    addbutton($sub_menu_buttons,'{CUSTOM_LNK_LNK}','{CUSTOM_LNK_TITLE}','{CUSTOM_LNK_TGT}','custom_link',$template_sub_menu_spacer);
    addbutton($sub_menu_buttons,'{ALB_LIST_LNK}','{ALB_LIST_TITLE}','{ALB_LIST_TGT}','album_list',$template_sub_menu_spacer);
    addbutton($sub_menu_buttons,'{LASTUP_LNK}','{LASTUP_TITLE}','{LASTUP_TGT}','lastup',$template_sub_menu_spacer);
    addbutton($sub_menu_buttons,'{LASTCOM_LNK}','{LASTCOM_TITLE}','{LASTCOM_TGT}','lastcom',$template_sub_menu_spacer);
    addbutton($sub_menu_buttons,'{TOPN_LNK}','{TOPN_TITLE}','{TOPN_TGT}','topn',$template_sub_menu_spacer);
    addbutton($sub_menu_buttons,'{TOPRATED_LNK}','{TOPRATED_TITLE}','{TOPRATED_TGT}','toprated',$template_sub_menu_spacer);
    addbutton($sub_menu_buttons,'{FAV_LNK}','{FAV_TITLE}','{FAV_TGT}','favpics',$template_sub_menu_spacer);
    addbutton($sub_menu_buttons,'{SEARCH_LNK}','{SEARCH_TITLE}','{SEARCH_TGT}','search','');

  $params = array('{BUTTONS}' => assemble_template_buttons($template_sub_menu_button,$sub_menu_buttons));
  $template_sub_menu = template_eval($template_sub_menu,$params);
}
?>


By the way, I tried copying the code from the sample/theme to the code before the original $template_sys_menu_buttong and $template_sys_menu and this worked except for the fact that the buttons didn't display correctly.  I think that I may be making this more complicated than it needs to be, since I couldn't find instructions that match what I did, but my theme now is working, however if there is an easier way to do this I'm interested.